  COVER INFORMATION 

 Station:    HART      (Code Hh ) 
 Experiment: 3.6cm global VLBI observations of the starburst galaxy Arp 220
 Exp. Code:  gv028b  


Schedule Version:       2.00
Processed by SCHED version:  11.60  Release 11.6; April 2020

PI:       Eskil Varenius

Address:  Chalmers University of Technology
          Onsala Space Observatory
          439 92 Onsala
          Sweden

Phone:    +46706755341
EMAIL:    eskil.varenius@chalmers.se
Fax:
Phone during observation: +46706755341

Observing mode: vlbi

Notes:    VLA exclude outer 3 stations for each arm.
          Phase calibrator: J1532+2344
          Fringe finder: J1516+1932
          Pol. cal.: OQ208


COVER LETTER:


This is one of three .key files to observe Arp 220 at 18cm, 6cm and 3.6cm
during EVN session I 2023. Arp 220 has two nuclei 1 arcsec apart; we aim
to point right in the middle of them, to get both at the same time.

OPERATOR NOTES:
VLA27: Please exclude outer 3 stations on each arm, to get C-array synthesized beam size.
EF: Gaps for pointing at:
from end of scan 107 at 03:54:29 to beginning of scan 111 at 04:02:12
from end of scan 236 at 08:04:05 to beginning of scan 243 at 08:13:31

Schedule for HART      (Code Hh )                                   Page   2
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Wed   1 Mar 2023   Day  60 ---

 Next scan frequencies:  8272.00  8272.00  8272.00  8272.00  8336.00  8336.00  8336.00  8336.00
                         8400.00  8400.00  8400.00  8400.00  8464.00  8464.00  8464.00  8464.00
 Next BBC frequencies:    192.00   192.00   192.00   192.00   256.00   256.00   256.00   256.00
                          320.00   320.00   320.00   320.00   384.00   384.00   384.00   384.00
 Next scan bandwidths:     32.00    32.00    32.00    32.00    32.00    32.00    32.00    32.00
                           32.00    32.00    32.00    32.00    32.00    32.00    32.00    32.00

23 30 00  J1516+1932   11 58 47  23.7  51.9 -3.3       0.0     0        0   23 30 00
23 35 00  =1514+197    12 03 48  24.6  51.0 -3.2       0.0   300       77   23 30 01

23 36 41  OQ208        12 05 29  28.3  30.6 -2.0       0.0    38       77   23 36 41
23 41 41  ---          12 10 29  28.9  29.6 -2.0       0.0   300      155   23 36 42

23 43 17  J1532+2344   12 12 06  20.5  48.9 -3.4       0.0    27      155   23 43 17
23 44 17  =1530+239    12 13 06  20.7  48.7 -3.3       0.0    60      170   23 43 18

23 44 44  ARP220       12 13 33  20.5  49.2 -3.4       0.0     1      170   23 44 44
23 47 14  ---          12 16 03  20.9  48.8 -3.3       0.0   150      209   23 44 45

23 47 41  J1532+2344   12 16 30  21.2  48.2 -3.3       0.0     1      209   23 47 41
23 48 41  =1530+239    12 17 30  21.4  48.0 -3.3       0.0    60      224   23 47 42

23 49 07  ARP220       12 17 57  21.3  48.5 -3.3       0.0     1      224   23 49 07
23 51 37  ---          12 20 27  21.7  48.1 -3.3       0.0   150      263   23 49 08

23 52 04  J1532+2344   12 20 54  22.0  47.4 -3.2       0.0     1      263   23 52 04
23 53 04  =1530+239    12 21 54  22.1  47.3 -3.2       0.0    60      278   23 52 05

23 53 30  ARP220       12 22 21  22.0  47.7 -3.2       0.0     1      278   23 53 30
23 56 00  ---          12 24 51  22.4  47.3 -3.2       0.0   150      317   23 53 31

23 56 27  J1532+2344   12 25 18  22.7  46.7 -3.1       0.0     1      317   23 56 27
23 57 27  =1530+239    12 26 19  22.8  46.5 -3.1       0.0    60      332   23 56 28

 --- Start: Wed   1 Mar 2023   Day  60 -- Stop: Thu   2 Mar 2023   Day  61 ---

23 57 54  ARP220       12 26 45  22.7  47.0 -3.2       0.0     1      332   23 57 54
00 00 24  ---          12 29 15  23.1  46.5 -3.1       0.0   150      371   23 57 55

00 00 51  J1532+2344   12 29 42  23.4  45.9 -3.1       0.0     1      371   00 00 51
00 01 51  =1530+239    12 30 43  23.6  45.7 -3.1       0.0    60      386   00 00 52

00 02 17  ARP220       12 31 09  23.4  46.2 -3.1       0.0     1      386   00 02 17
00 04 47  ---          12 33 39  23.8  45.8 -3.0       0.0   150      425   00 02 18
Schedule for HART      (Code Hh )                                   Page   3
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

00 05 14  J1532+2344   12 34 07  24.1  45.1 -3.0       0.0     1      425   00 05 14
00 06 14  =1530+239    12 35 07  24.3  44.9 -3.0       0.0    60      441   00 05 15

00 06 40  ARP220       12 35 33  24.1  45.4 -3.0       0.0     1      441   00 06 40
00 09 10  ---          12 38 04  24.5  45.0 -3.0       0.0   150      479   00 06 41

00 09 37  J1532+2344   12 38 31  24.8  44.3 -2.9       0.0     1      479   00 09 37
00 10 37  =1530+239    12 39 31  25.0  44.1 -2.9       0.0    60      495   00 09 38

00 11 04  ARP220       12 39 57  24.8  44.6 -2.9       0.0     1      495   00 11 04
00 13 34  ---          12 42 28  25.2  44.2 -2.9       0.0   150      533   00 11 05

00 14 01  J1532+2344   12 42 55  25.5  43.5 -2.8       0.0     1      533   00 14 01
00 15 01  =1530+239    12 43 55  25.6  43.3 -2.8       0.0    60      549   00 14 02

00 15 27  ARP220       12 44 21  25.5  43.8 -2.9       0.0     1      549   00 15 27
00 17 57  ---          12 46 52  25.9  43.3 -2.8       0.0   150      587   00 15 28

00 18 24  J1532+2344   12 47 19  26.2  42.7 -2.8       0.0     1      587   00 18 24
00 19 24  =1530+239    12 48 19  26.3  42.5 -2.8       0.0    60      603   00 18 25

00 19 50  ARP220       12 48 45  26.2  43.0 -2.8       0.0     1      603   00 19 50
00 22 20  ---          12 51 16  26.6  42.5 -2.7       0.0   150      642   00 19 51

00 22 47  J1532+2344   12 51 43  26.8  41.8 -2.7       0.0     1      642   00 22 47
00 23 47  =1530+239    12 52 43  27.0  41.6 -2.7       0.0    60      657   00 22 48

00 24 14  ARP220       12 53 09  26.9  42.1 -2.7       0.0     1      657   00 24 14
00 26 44  ---          12 55 40  27.3  41.7 -2.7       0.0   150      696   00 24 15

00 27 11  J1532+2344   12 56 07  27.5  41.0 -2.6       0.0     1      696   00 27 11
00 28 11  =1530+239    12 57 07  27.6  40.8 -2.6       0.0    60      711   00 27 12

00 28 37  ARP220       12 57 33  27.5  41.3 -2.6       0.0     1      711   00 28 37
00 31 07  ---          13 00 04  27.9  40.8 -2.6       0.0   150      750   00 28 38

00 31 34  J1532+2344   13 00 31  28.1  40.1 -2.6       0.0     1      750   00 31 34
00 32 34  =1530+239    13 01 31  28.3  39.9 -2.5       0.0    60      765   00 31 35

00 33 00  ARP220       13 01 57  28.2  40.4 -2.6       0.0     1      765   00 33 00
00 35 30  ---          13 04 28  28.6  39.9 -2.5       0.0   150      804   00 33 01

00 35 57  J1532+2344   13 04 55  28.8  39.2 -2.5       0.0     1      804   00 35 57
00 36 57  =1530+239    13 05 55  28.9  39.0 -2.5       0.0    60      819   00 35 58
Schedule for HART      (Code Hh )                                   Page   4
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

00 38 34  OQ208        13 07 32  33.9  16.1 -1.0       0.0    26      819   00 38 34
00 43 34  ---          13 12 33  34.2  14.8 -0.9       0.0   300      897   00 38 35

00 45 08  J1532+2344   13 14 07  30.0  37.3 -2.3       0.0    25      897   00 45 08
00 46 08  =1530+239    13 15 08  30.2  37.1 -2.3       0.0    60      912   00 45 09

00 46 35  ARP220       13 15 34  30.1  37.6 -2.3       0.0     1      912   00 46 35
00 49 05  ---          13 18 04  30.5  37.1 -2.3       0.0   150      951   00 46 36

00 49 32  J1532+2344   13 18 31  30.6  36.3 -2.3       0.0     1      951   00 49 32
00 50 32  =1530+239    13 19 32  30.8  36.1 -2.2       0.0    60      966   00 49 33

00 50 58  ARP220       13 19 58  30.7  36.6 -2.3       0.0     1      966   00 50 58
00 53 28  ---          13 22 28  31.1  36.1 -2.2       0.0   150     1005   00 50 59

00 53 55  J1532+2344   13 22 55  31.2  35.4 -2.2       0.0     1     1005   00 53 55
00 54 55  =1530+239    13 23 56  31.3  35.1 -2.2       0.0    60     1020   00 53 56

00 55 21  ARP220       13 24 22  31.3  35.7 -2.2       0.0     1     1020   00 55 21
00 57 51  ---          13 26 52  31.6  35.1 -2.2       0.0   150     1059   00 55 22

00 58 18  J1532+2344   13 27 19  31.8  34.4 -2.1       0.0     1     1059   00 58 18
00 59 18  =1530+239    13 28 20  31.9  34.2 -2.1       0.0    60     1074   00 58 19

00 59 44  ARP220       13 28 46  31.9  34.7 -2.1       0.0     1     1074   00 59 44
01 02 14  ---          13 31 16  32.2  34.1 -2.1       0.0   150     1113   00 59 45

01 02 41  J1532+2344   13 31 43  32.3  33.4 -2.0       0.0     1     1113   01 02 41
01 03 41  =1530+239    13 32 43  32.5  33.2 -2.0       0.0    60     1128   01 02 42

01 04 08  ARP220       13 33 10  32.4  33.7 -2.0       0.0     1     1128   01 04 08
01 06 38  ---          13 35 40  32.7  33.1 -2.0       0.0   150     1167   01 04 09

01 07 04  J1532+2344   13 36 07  32.9  32.4 -2.0       0.0     1     1167   01 07 04
01 08 04  =1530+239    13 37 07  33.0  32.2 -1.9       0.0    60     1183   01 07 05

01 08 31  ARP220       13 37 34  33.0  32.7 -2.0       0.0     1     1183   01 08 31
01 11 01  ---          13 40 04  33.3  32.1 -1.9       0.0   150     1221   01 08 32

01 11 28  J1532+2344   13 40 31  33.4  31.4 -1.9       0.0     1     1221   01 11 28
01 12 28  =1530+239    13 41 31  33.5  31.1 -1.9       0.0    60     1237   01 11 29

01 12 54  ARP220       13 41 58  33.5  31.7 -1.9       0.0     1     1237   01 12 54
01 15 24  ---          13 44 28  33.8  31.1 -1.9       0.0   150     1275   01 12 55
Schedule for HART      (Code Hh )                                   Page   5
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

01 15 51  J1532+2344   13 44 55  33.9  30.3 -1.8       0.0     1     1275   01 15 51
01 16 51  =1530+239    13 45 55  34.0  30.1 -1.8       0.0    60     1291   01 15 52

01 17 17  ARP220       13 46 22  34.0  30.6 -1.8       0.0     1     1291   01 17 17
01 19 47  ---          13 48 52  34.3  30.0 -1.8       0.0   150     1329   01 17 18

01 20 14  J1532+2344   13 49 19  34.4  29.2 -1.7       0.0     1     1329   01 20 14
01 21 14  =1530+239    13 50 19  34.5  29.0 -1.7       0.0    60     1345   01 20 15

01 21 40  ARP220       13 50 45  34.5  29.6 -1.8       0.0     1     1345   01 21 40
01 24 10  ---          13 53 16  34.8  28.9 -1.7       0.0   150     1384   01 21 41

01 24 37  J1532+2344   13 53 43  34.9  28.2 -1.7       0.0     1     1384   01 24 37
01 25 37  =1530+239    13 54 43  35.0  27.9 -1.7       0.0    60     1399   01 24 38

01 26 03  ARP220       13 55 09  35.0  28.5 -1.7       0.0     1     1399   01 26 03
01 28 33  ---          13 57 40  35.3  27.9 -1.6       0.0   150     1438   01 26 04

01 29 00  J1532+2344   13 58 06  35.3  27.1 -1.6       0.0     1     1438   01 29 00
01 30 00  =1530+239    13 59 07  35.4  26.8 -1.6       0.0    60     1453   01 29 01

01 30 26  ARP220       13 59 33  35.4  27.4 -1.6       0.0     1     1453   01 30 26
01 32 56  ---          14 02 03  35.7  26.8 -1.6       0.0   150     1492   01 30 27

01 33 23  J1532+2344   14 02 30  35.8  26.0 -1.5       0.0     1     1492   01 33 23
01 34 23  =1530+239    14 03 30  35.9  25.7 -1.5       0.0    60     1507   01 33 24

01 34 49  ARP220       14 03 57  35.9  26.3 -1.5       0.0     1     1507   01 34 49
01 37 19  ---          14 06 27  36.1  25.6 -1.5       0.0   150     1546   01 34 50

01 37 46  J1532+2344   14 06 54  36.2  24.8 -1.4       0.0     1     1546   01 37 46
01 38 46  =1530+239    14 07 54  36.3  24.6 -1.4       0.0    60     1561   01 37 47

01 40 22  OQ208        14 09 31  35.8 359.6  0.0       0.0    26     1561   01 40 22
01 45 22  ---          14 14 32  35.7 358.2  0.1       0.0   300     1639   01 40 23

01 46 59  J1532+2344   14 16 08  37.0  22.4 -1.3       0.0    27     1639   01 46 59
01 47 59  =1530+239    14 17 09  37.1  22.1 -1.3       0.0    60     1654   01 47 00

01 48 25  ARP220       14 17 35  37.2  22.7 -1.3       0.0     1     1654   01 48 25
01 50 55  ---          14 20 05  37.4  22.0 -1.3       0.0   150     1693   01 48 26

01 51 22  J1532+2344   14 20 32  37.4  21.2 -1.2       0.0     1     1693   01 51 22
01 52 22  =1530+239    14 21 32  37.5  21.0 -1.2       0.0    60     1708   01 51 23
Schedule for HART      (Code Hh )                                   Page   6
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

01 52 48  ARP220       14 21 58  37.5  21.5 -1.2       0.0     1     1708   01 52 48
01 55 18  ---          14 24 29  37.7  20.9 -1.2       0.0   150     1747   01 52 49

01 55 45  J1532+2344   14 24 56  37.7  20.0 -1.1       0.0     1     1747   01 55 45
01 56 45  =1530+239    14 25 56  37.8  19.8 -1.1       0.0    60     1762   01 55 46

01 57 11  ARP220       14 26 22  37.9  20.3 -1.2       0.0     1     1762   01 57 11
01 59 41  ---          14 28 52  38.1  19.7 -1.1       0.0   150     1801   01 57 12

02 00 08  J1532+2344   14 29 19  38.1  18.8 -1.1       0.0     1     1801   02 00 08
02 01 08  =1530+239    14 30 19  38.1  18.6 -1.1       0.0    60     1816   02 00 09

02 01 34  ARP220       14 30 45  38.2  19.1 -1.1       0.0     1     1816   02 01 34
02 04 04  ---          14 33 16  38.4  18.4 -1.0       0.0   150     1855   02 01 35

02 04 30  J1532+2344   14 33 43  38.4  17.6 -1.0       0.0     1     1855   02 04 30
02 05 30  =1530+239    14 34 43  38.4  17.3 -1.0       0.0    60     1870   02 04 31

02 05 57  ARP220       14 35 09  38.5  17.9 -1.0       0.0     1     1870   02 05 57
02 08 27  ---          14 37 39  38.7  17.2 -1.0       0.0   150     1909   02 05 58

02 08 53  J1532+2344   14 38 06  38.7  16.4 -0.9       0.0     1     1909   02 08 53
02 09 53  =1530+239    14 39 06  38.7  16.1 -0.9       0.0    60     1925   02 08 54

02 10 19  ARP220       14 39 32  38.8  16.7 -0.9       0.0     1     1925   02 10 19
02 12 49  ---          14 42 03  39.0  16.0 -0.9       0.0   150     1963   02 10 20

02 13 16  J1532+2344   14 42 29  38.9  15.1 -0.9       0.0     1     1963   02 13 16
02 14 16  =1530+239    14 43 30  39.0  14.9 -0.8       0.0    60     1979   02 13 17

02 14 42  ARP220       14 43 56  39.1  15.4 -0.9       0.0     1     1979   02 14 42
02 17 12  ---          14 46 26  39.3  14.7 -0.8       0.0   150     2017   02 14 43

02 17 38  J1532+2344   14 46 53  39.2  13.9 -0.8       0.0     1     2017   02 17 38
02 18 38  =1530+239    14 47 53  39.2  13.6 -0.8       0.0    60     2033   02 17 39

02 19 05  ARP220       14 48 19  39.4  14.2 -0.8       0.0     1     2033   02 19 05
02 21 35  ---          14 50 50  39.5  13.5 -0.8       0.0   150     2071   02 19 06

02 22 01  J1532+2344   14 51 16  39.4  12.6 -0.7       0.0     1     2071   02 22 01
02 23 01  =1530+239    14 52 17  39.5  12.3 -0.7       0.0    60     2087   02 22 02

02 23 27  ARP220       14 52 43  39.6  12.9 -0.7       0.0     1     2087   02 23 27
02 25 57  ---          14 55 13  39.7  12.2 -0.7       0.0   150     2126   02 23 28
Schedule for HART      (Code Hh )                                   Page   7
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

02 26 24  J1532+2344   14 55 40  39.6  11.3 -0.6       0.0     1     2126   02 26 24
02 27 24  =1530+239    14 56 40  39.7  11.1 -0.6       0.0    60     2141   02 26 25

02 27 50  ARP220       14 57 06  39.8  11.6 -0.6       0.0     1     2141   02 27 50
02 30 20  ---          14 59 37  39.9  10.9 -0.6       0.0   150     2180   02 27 51

02 30 48  J1532+2344   15 00 04  39.8  10.1 -0.6       0.0     2     2180   02 30 48
02 31 48  =1530+239    15 01 04  39.8   9.8 -0.5       0.0    60     2195   02 30 49

02 32 14  ARP220       15 01 30  40.0  10.3 -0.6       0.0     1     2195   02 32 14
02 34 44  ---          15 04 01  40.1   9.6 -0.5       0.0   150     2234   02 32 15

02 35 11  J1532+2344   15 04 28  40.0   8.8 -0.5       0.0     2     2234   02 35 11
02 36 11  =1530+239    15 05 29  40.0   8.5 -0.5       0.0    60     2249   02 35 12

02 36 37  ARP220       15 05 55  40.2   9.0 -0.5       0.0     1     2249   02 36 37
02 39 07  ---          15 08 25  40.2   8.3 -0.5       0.0   150     2288   02 36 38

02 39 35  J1532+2344   15 08 53  40.1   7.5 -0.4       0.0     2     2288   02 39 35
02 40 35  =1530+239    15 09 53  40.1   7.2 -0.4       0.0    60     2303   02 39 36

02 42 41  OQ208        15 12 00  33.6 343.1  1.1       0.0    56     2303   02 42 41
02 47 41  ---          15 17 01  33.3 341.8  1.1       0.0   300     2381   02 42 42

02 49 47  J1532+2344   15 19 07  40.3   4.4 -0.2       0.0    56     2381   02 49 47
02 50 47  =1530+239    15 20 07  40.3   4.1 -0.2       0.0    60     2396   02 49 48

02 51 14  ARP220       15 20 34  40.5   4.6 -0.3       0.0     1     2396   02 51 14
02 53 44  ---          15 23 04  40.6   3.9 -0.2       0.0   150     2435   02 51 15

02 54 12  J1532+2344   15 23 33  40.4   3.1 -0.2       0.0     3     2435   02 54 12
02 55 12  =1530+239    15 24 33  40.4   2.8 -0.2       0.0    60     2450   02 54 13

02 55 39  ARP220       15 25 00  40.6   3.3 -0.2       0.0     2     2450   02 55 39
02 58 09  ---          15 27 30  40.6   2.6 -0.1       0.0   150     2489   02 55 40

02 58 38  J1532+2344   15 27 59  40.4   1.7 -0.1       0.0     3     2489   02 58 38
02 59 38  =1530+239    15 28 59  40.4   1.4 -0.1       0.0    60     2504   02 58 39

03 00 05  ARP220       15 29 27  40.7   2.0 -0.1       0.0     2     2504   03 00 05
03 02 35  ---          15 31 57  40.7   1.2 -0.1       0.0   150     2543   03 00 06

03 03 04  J1532+2344   15 32 26  40.5   0.4 -0.0       0.0     3     2543   03 03 04
03 04 04  =1530+239    15 33 26  40.5   0.1 -0.0       0.0    60     2558   03 03 05
Schedule for HART      (Code Hh )                                   Page   8
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

03 04 31  ARP220       15 33 53  40.7   0.6 -0.0       0.0     2     2558   03 04 31
03 07 01  ---          15 36 24  40.7 359.9  0.0       0.0   150     2597   03 04 32

03 07 30  J1532+2344   15 36 53  40.5 359.1  0.1       0.0     3     2597   03 07 30
03 08 30  =1530+239    15 37 53  40.4 358.8  0.1       0.0    60     2612   03 07 31

03 08 58  ARP220       15 38 21  40.7 359.3  0.0       0.0     2     2612   03 08 58
03 11 28  ---          15 40 51  40.7 358.5  0.1       0.0   150     2651   03 08 59

03 11 57  J1532+2344   15 41 21  40.4 357.7  0.1       0.0     4     2651   03 11 57
03 12 57  =1530+239    15 42 21  40.4 357.4  0.1       0.0    60     2667   03 11 58

03 13 25  ARP220       15 42 49  40.7 357.9  0.1       0.0     2     2667   03 13 25
03 15 55  ---          15 45 19  40.6 357.2  0.2       0.0   150     2705   03 13 26

03 16 25  J1532+2344   15 45 49  40.4 356.4  0.2       0.0     4     2705   03 16 25
03 17 25  =1530+239    15 46 49  40.4 356.1  0.2       0.0    60     2721   03 16 26

03 17 53  ARP220       15 47 17  40.6 356.6  0.2       0.0     3     2721   03 17 53
03 20 23  ---          15 49 47  40.6 355.8  0.2       0.0   150     2759   03 17 54

03 20 52  J1532+2344   15 50 17  40.3 355.0  0.3       0.0     4     2759   03 20 52
03 21 52  =1530+239    15 51 17  40.3 354.7  0.3       0.0    60     2775   03 20 53

03 22 21  ARP220       15 51 46  40.5 355.2  0.3       0.0     3     2775   03 22 21
03 24 51  ---          15 54 16  40.5 354.5  0.3       0.0   150     2813   03 22 22

03 25 20  J1532+2344   15 54 46  40.2 353.7  0.3       0.0     4     2813   03 25 20
03 26 20  =1530+239    15 55 46  40.2 353.4  0.4       0.0    60     2829   03 25 21

03 26 49  ARP220       15 56 15  40.4 353.9  0.3       0.0     3     2829   03 26 49
03 29 19  ---          15 58 45  40.4 353.1  0.4       0.0   150     2868   03 26 50

03 29 49  J1532+2344   15 59 15  40.1 352.4  0.4       0.0     5     2868   03 29 49
03 30 49  =1530+239    16 00 15  40.0 352.1  0.4       0.0    60     2883   03 29 50

03 31 18  ARP220       16 00 44  40.3 352.5  0.4       0.0     3     2883   03 31 18
03 33 48  ---          16 03 15  40.2 351.8  0.5       0.0   150     2922   03 31 19

03 34 18  J1532+2344   16 03 45  39.9 351.0  0.5       0.0     5     2922   03 34 18
03 35 18  =1530+239    16 04 45  39.9 350.7  0.5       0.0    60     2937   03 34 19

03 35 47  ARP220       16 05 14  40.2 351.2  0.5       0.0     3     2937   03 35 47
03 38 17  ---          16 07 45  40.1 350.5  0.5       0.0   150     2976   03 35 48
Schedule for HART      (Code Hh )                                   Page   9
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

03 38 48  J1532+2344   16 08 15  39.8 349.7  0.6       0.0     5     2976   03 38 48
03 39 48  =1530+239    16 09 15  39.7 349.4  0.6       0.0    60     2991   03 38 49

03 40 17  ARP220       16 09 45  40.0 349.9  0.6       0.0     4     2991   03 40 17
03 42 47  ---          16 12 15  39.9 349.1  0.6       0.0   150     3030   03 40 18

03 43 17  J1532+2344   16 12 46  39.6 348.4  0.6       0.0     5     3030   03 43 17
03 44 17  =1530+239    16 13 46  39.5 348.1  0.7       0.0    60     3045   03 43 18

03 46 48  OQ208        16 16 17  27.6 328.2  2.1       0.0    80     3045   03 46 48
03 51 48  ---          16 21 18  27.0 327.1  2.2       0.0   300     3123   03 46 49

03 53 29  J1532+2344   16 23 00  39.0 345.4  0.8       0.0    32     3123   03 53 29
03 54 29  =1530+239    16 24 00  39.0 345.2  0.8       0.0    60     3138   03 53 30

03 54 55  ARP220       16 24 25  39.3 345.6  0.8       0.0     0     3138   03 54 55
03 57 25  ---          16 26 56  39.2 344.9  0.8       0.0   150     3177   03 54 56

03 57 51  J1532+2344   16 27 21  38.8 344.2  0.9       0.0     0     3177   03 57 51
03 58 51  =1530+239    16 28 21  38.7 343.9  0.9       0.0    60     3192   03 57 52

03 59 16  ARP220       16 28 47  39.1 344.3  0.9       0.0     0     3192   03 59 16
04 01 46  ---          16 31 17  38.9 343.6  0.9       0.0   150     3231   03 59 17

04 02 12  J1532+2344   16 31 43  38.5 343.0  1.0       0.0     0     3231   04 02 12
04 03 12  =1530+239    16 32 43  38.4 342.7  1.0       0.0    60     3246   04 02 13

04 03 42  ARP220       16 33 13  38.8 343.1  1.0       0.0     5     3246   04 03 42
04 06 12  ---          16 35 44  38.6 342.4  1.0       0.0   150     3285   04 03 43

04 06 43  J1532+2344   16 36 16  38.2 341.7  1.0       0.0     6     3285   04 06 43
04 07 43  =1530+239    16 37 16  38.1 341.4  1.1       0.0    60     3300   04 06 44

04 08 14  ARP220       16 37 46  38.5 341.8  1.0       0.0     5     3300   04 08 14
04 10 44  ---          16 40 16  38.3 341.1  1.1       0.0   150     3339   04 08 15

04 11 16  J1532+2344   16 40 49  37.9 340.5  1.1       0.0     6     3339   04 11 16
04 12 16  =1530+239    16 41 49  37.8 340.2  1.1       0.0    60     3354   04 11 17

04 12 46  ARP220       16 42 19  38.1 340.5  1.1       0.0     5     3354   04 12 46
04 15 16  ---          16 44 50  37.9 339.9  1.1       0.0   150     3393   04 12 47

04 15 48  J1532+2344   16 45 22  37.5 339.2  1.2       0.0     7     3393   04 15 48
04 16 48  =1530+239    16 46 22  37.4 338.9  1.2       0.0    60     3409   04 15 49
Schedule for HART      (Code Hh )                                   Page  10
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

04 17 18  ARP220       16 46 52  37.8 339.3  1.2       0.0     5     3409   04 17 18
04 19 48  ---          16 49 23  37.6 338.6  1.2       0.0   150     3447   04 17 19

04 20 21  J1532+2344   16 49 55  37.1 338.0  1.3       0.0     7     3447   04 20 21
04 21 21  =1530+239    16 50 55  37.1 337.7  1.3       0.0    60     3463   04 20 22

04 21 51  ARP220       16 51 26  37.4 338.1  1.3       0.0     5     3463   04 21 51
04 24 21  ---          16 53 56  37.2 337.4  1.3       0.0   150     3501   04 21 52

04 24 54  J1532+2344   16 54 29  36.7 336.8  1.3       0.0     7     3501   04 24 54
04 25 54  =1530+239    16 55 29  36.7 336.5  1.4       0.0    60     3517   04 24 55

04 26 24  ARP220       16 56 00  37.0 336.8  1.3       0.0     5     3517   04 26 24
04 28 54  ---          16 58 30  36.8 336.2  1.4       0.0   150     3555   04 26 25

04 29 27  J1532+2344   16 59 03  36.3 335.6  1.4       0.0     7     3555   04 29 27
04 30 27  =1530+239    17 00 03  36.2 335.3  1.4       0.0    60     3571   04 29 28

04 30 58  ARP220       17 00 34  36.6 335.6  1.4       0.0     5     3571   04 30 58
04 33 28  ---          17 03 04  36.4 335.0  1.5       0.0   150     3610   04 30 59

04 34 00  J1532+2344   17 03 37  35.9 334.4  1.5       0.0     7     3610   04 34 00
04 35 00  =1530+239    17 04 37  35.8 334.1  1.5       0.0    60     3625   04 34 01

04 35 31  ARP220       17 05 08  36.2 334.5  1.5       0.0     5     3625   04 35 31
04 38 01  ---          17 07 39  35.9 333.8  1.5       0.0   150     3664   04 35 32

04 38 34  J1532+2344   17 08 11  35.4 333.2  1.6       0.0     7     3664   04 38 34
04 39 34  =1530+239    17 09 12  35.3 333.0  1.6       0.0    60     3679   04 38 35

04 40 05  ARP220       17 09 43  35.7 333.3  1.6       0.0     5     3679   04 40 05
04 42 35  ---          17 12 13  35.5 332.7  1.6       0.0   150     3718   04 40 06

04 43 08  J1532+2344   17 12 46  35.0 332.1  1.6       0.0     7     3718   04 43 08
04 44 08  =1530+239    17 13 46  34.9 331.9  1.7       0.0    60     3733   04 43 09

04 44 39  ARP220       17 14 17  35.2 332.1  1.6       0.0     6     3733   04 44 39
04 47 09  ---          17 16 47  35.0 331.5  1.7       0.0   150     3772   04 44 40

04 47 41  J1532+2344   17 17 20  34.5 331.0  1.7       0.0     7     3772   04 47 41
04 48 41  =1530+239    17 18 21  34.4 330.7  1.7       0.0    60     3787   04 47 42

04 51 02  OQ208        17 20 42  18.7 316.2  3.2       0.0    71     3787   04 51 02
04 56 02  ---          17 25 43  17.9 315.4  3.3       0.0   300     3865   04 51 03
Schedule for HART      (Code Hh )                                   Page  11
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

04 58 17  J1532+2344   17 27 57  33.3 328.4  1.9       0.0    65     3865   04 58 17
04 59 17  =1530+239    17 28 58  33.2 328.2  1.9       0.0    60     3880   04 58 18

04 59 48  ARP220       17 29 29  33.6 328.4  1.9       0.0     6     3880   04 59 48
05 02 18  ---          17 31 59  33.3 327.9  1.9       0.0   150     3919   04 59 49

05 02 51  J1532+2344   17 32 32  32.7 327.4  2.0       0.0     7     3919   05 02 51
05 03 51  =1530+239    17 33 32  32.6 327.1  2.0       0.0    60     3934   05 02 52

05 04 22  ARP220       17 34 03  33.0 327.4  2.0       0.0     6     3934   05 04 22
05 06 52  ---          17 36 34  32.7 326.8  2.0       0.0   150     3973   05 04 23

05 07 25  J1532+2344   17 37 07  32.2 326.3  2.1       0.0     7     3973   05 07 25
05 08 25  =1530+239    17 38 07  32.0 326.1  2.1       0.0    60     3988   05 07 26

05 08 56  ARP220       17 38 38  32.4 326.3  2.0       0.0     6     3988   05 08 56
05 11 26  ---          17 41 09  32.1 325.7  2.1       0.0   150     4027   05 08 57

05 11 58  J1532+2344   17 41 41  31.6 325.3  2.1       0.0     7     4027   05 11 58
05 12 58  =1530+239    17 42 42  31.5 325.1  2.1       0.0    60     4042   05 11 59

05 13 29  ARP220       17 43 13  31.9 325.3  2.1       0.0     6     4042   05 13 29
05 15 59  ---          17 45 43  31.5 324.7  2.2       0.0   150     4081   05 13 30

05 16 32  J1532+2344   17 46 16  31.0 324.3  2.2       0.0     7     4081   05 16 32
05 17 32  =1530+239    17 47 16  30.9 324.1  2.2       0.0    60     4096   05 16 33

05 18 03  ARP220       17 47 47  31.3 324.3  2.2       0.0     6     4096   05 18 03
05 20 33  ---          17 50 18  30.9 323.7  2.2       0.0   150     4135   05 18 04

05 21 06  J1532+2344   17 50 50  30.4 323.3  2.3       0.0     7     4135   05 21 06
05 22 06  =1530+239    17 51 51  30.3 323.1  2.3       0.0    60     4151   05 21 07

05 22 37  ARP220       17 52 22  30.7 323.3  2.3       0.0     6     4151   05 22 37
05 25 07  ---          17 54 52  30.3 322.7  2.3       0.0   150     4189   05 22 38

05 25 40  J1532+2344   17 55 25  29.8 322.3  2.4       0.0     7     4189   05 25 40
05 26 40  =1530+239    17 56 25  29.6 322.1  2.4       0.0    60     4205   05 25 41

05 27 10  ARP220       17 56 56  30.0 322.3  2.3       0.0     5     4205   05 27 10
05 29 40  ---          17 59 26  29.7 321.8  2.4       0.0   150     4243   05 27 11

05 30 13  J1532+2344   17 59 59  29.1 321.4  2.4       0.0     7     4243   05 30 13
05 31 13  =1530+239    18 00 59  29.0 321.1  2.5       0.0    60     4259   05 30 14
Schedule for HART      (Code Hh )                                   Page  12
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

05 31 33  J1532+2344   18 01 19  28.9 321.1  2.5       0.0    -1     4259   05 31 33
05 32 33  =1530+239    18 02 19  28.8 320.9  2.5       0.0    59     4274   05 31 34

05 33 04  ARP220       18 02 50  29.2 321.1  2.4       0.0     5     4274   05 33 04
05 35 34  ---          18 05 21  28.9 320.5  2.5       0.0   150     4313   05 33 05

05 36 06  J1532+2344   18 05 53  28.3 320.1  2.5       0.0     7     4313   05 36 06
05 37 06  =1530+239    18 06 53  28.1 319.9  2.6       0.0    60     4328   05 36 07

05 37 37  ARP220       18 07 24  28.6 320.1  2.5       0.0     5     4328   05 37 37
05 40 07  ---          18 09 55  28.2 319.6  2.6       0.0   150     4367   05 37 38

05 40 39  J1532+2344   18 10 27  27.6 319.2  2.6       0.0     7     4367   05 40 39
05 41 39  =1530+239    18 11 27  27.5 319.0  2.6       0.0    60     4382   05 40 40

05 42 10  ARP220       18 11 58  27.9 319.2  2.6       0.0     5     4382   05 42 10
05 44 40  ---          18 14 28  27.5 318.7  2.6       0.0   150     4421   05 42 11

05 45 12  J1532+2344   18 15 01  27.0 318.3  2.7       0.0     7     4421   05 45 12
05 46 12  =1530+239    18 16 01  26.8 318.1  2.7       0.0    60     4437   05 45 13

05 46 43  ARP220       18 16 32  27.2 318.3  2.7       0.0     5     4437   05 46 43
05 49 13  ---          18 19 02  26.8 317.8  2.7       0.0   150     4475   05 46 44

05 49 45  J1532+2344   18 19 34  26.3 317.5  2.8       0.0     6     4475   05 49 45
05 50 45  =1530+239    18 20 34  26.1 317.3  2.8       0.0    60     4491   05 49 46

05 51 16  ARP220       18 21 05  26.5 317.4  2.8       0.0     5     4491   05 51 16
05 53 46  ---          18 23 35  26.2 316.9  2.8       0.0   150     4529   05 51 17

05 54 18  J1532+2344   18 24 08  25.6 316.6  2.8       0.0     6     4529   05 54 18
05 55 18  =1530+239    18 25 08  25.4 316.4  2.9       0.0    60     4545   05 54 19

05 55 48  ARP220       18 25 38  25.8 316.5  2.8       0.0     5     4545   05 55 48
05 58 18  ---          18 28 09  25.4 316.1  2.9       0.0   150     4583   05 55 49

05 58 50  J1532+2344   18 28 41  24.9 315.8  2.9       0.0     6     4583   05 58 50
05 59 50  =1530+239    18 29 41  24.7 315.6  2.9       0.0    60     4599   05 58 51

06 08 35  J1532+2344   18 38 28  23.3 314.0  3.1       0.0   504     4599   06 08 35
06 09 35  =1530+239    18 39 28  23.1 313.8  3.1       0.0    60     4614   06 08 36

06 09 35  J1532+2344   18 39 28  23.1 313.8  3.1       0.0   -20     4614   No stop 
06 10 05  =1530+239    18 39 58  23.1 313.7  3.1       0.0    10     4622   06 09 36
Schedule for HART      (Code Hh )                                   Page  13
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

06 10 36  ARP220       18 40 28  23.5 313.8  3.1       0.0     5     4622   06 10 36
06 12 36  ---          18 42 29  23.2 313.5  3.1       0.0   120     4653   06 10 37

06 13 07  J1532+2344   18 43 00  22.6 313.2  3.2       0.0     6     4653   06 13 07
06 14 07  =1530+239    18 44 00  22.4 313.0  3.2       0.0    60     4668   06 13 08

06 14 07  J1532+2344   18 44 00  22.4 313.0  3.2       0.0   -20     4668   No stop 
06 14 37  =1530+239    18 44 30  22.3 312.9  3.2       0.0    10     4676   06 14 08

06 15 07  ARP220       18 45 01  22.7 313.0  3.2       0.0     5     4676   06 15 07
06 17 07  ---          18 47 01  22.4 312.7  3.2       0.0   120     4707   06 15 08

06 17 39  J1532+2344   18 47 32  21.8 312.4  3.2       0.0     6     4707   06 17 39
06 18 39  =1530+239    18 48 32  21.6 312.2  3.2       0.0    60     4723   06 17 40

06 18 39  J1532+2344   18 48 32  21.6 312.2  3.2       0.0   -20     4723   No stop 
06 19 09  =1530+239    18 49 03  21.6 312.2  3.3       0.0    10     4730   06 18 40

06 19 39  ARP220       18 49 33  22.0 312.3  3.2       0.0     5     4730   06 19 39
06 21 39  ---          18 51 33  21.7 311.9  3.3       0.0   120     4761   06 19 40

06 22 10  J1532+2344   18 52 04  21.1 311.7  3.3       0.0     6     4761   06 22 10
06 23 10  =1530+239    18 53 04  20.9 311.5  3.3       0.0    60     4777   06 22 11

06 23 10  J1532+2344   18 53 04  20.9 311.5  3.3       0.0   -20     4777   No stop 
06 23 40  =1530+239    18 53 34  20.8 311.4  3.3       0.0    10     4784   06 23 11

06 24 10  ARP220       18 54 04  21.2 311.5  3.3       0.0     4     4784   06 24 10
06 26 10  ---          18 56 05  20.9 311.2  3.3       0.0   120     4815   06 24 11

06 26 41  J1532+2344   18 56 36  20.3 310.9  3.4       0.0     5     4815   06 26 41
06 27 41  =1530+239    18 57 36  20.1 310.7  3.4       0.0    60     4831   06 26 42

06 27 41  J1532+2344   18 57 36  20.1 310.7  3.4       0.0   -20     4831   No stop 
06 28 11  =1530+239    18 58 06  20.0 310.7  3.4       0.0    10     4838   06 27 42

06 28 40  ARP220       18 58 36  20.5 310.8  3.4       0.0     4     4838   06 28 40
06 30 40  ---          19 00 36  20.1 310.4  3.4       0.0   120     4869   06 28 41

06 31 11  J1532+2344   19 01 07  19.5 310.2  3.5       0.0     5     4869   06 31 11
06 32 11  =1530+239    19 02 08  19.3 310.0  3.5       0.0    60     4885   06 31 12

06 32 11  J1532+2344   19 02 08  19.3 310.0  3.5       0.0   -20     4885   No stop 
06 32 41  =1530+239    19 02 38  19.3 309.9  3.5       0.0    10     4893   06 32 12
Schedule for HART      (Code Hh )                                   Page  14
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

06 33 11  ARP220       19 03 07  19.7 310.0  3.5       0.0     4     4893   06 33 11
06 35 11  ---          19 05 08  19.4 309.7  3.5       0.0   120     4923   06 33 12

06 35 42  J1532+2344   19 05 39  18.7 309.5  3.5       0.0     5     4923   06 35 42
06 36 42  =1530+239    19 06 39  18.6 309.3  3.5       0.0    60     4939   06 35 43

06 36 42  J1532+2344   19 06 39  18.6 309.3  3.5       0.0   -20     4939   No stop 
06 37 12  =1530+239    19 07 09  18.5 309.2  3.6       0.0    10     4947   06 36 43

06 37 42  ARP220       19 07 39  18.9 309.3  3.5       0.0     4     4947   06 37 42
06 39 42  ---          19 09 39  18.6 309.0  3.6       0.0   120     4978   06 37 43

06 40 12  J1532+2344   19 10 10  17.9 308.7  3.6       0.0     5     4978   06 40 12
06 41 12  =1530+239    19 11 10  17.8 308.6  3.6       0.0    60     4993   06 40 13

06 41 12  J1532+2344   19 11 10  17.8 308.6  3.6       0.0   -20     4993   No stop 
06 41 42  =1530+239    19 11 40  17.7 308.5  3.6       0.0    10     5001   06 41 13

06 42 12  ARP220       19 12 10  18.1 308.6  3.6       0.0     4     5001   06 42 12
06 44 12  ---          19 14 10  17.8 308.3  3.6       0.0   120     5032   06 42 13

06 44 42  J1532+2344   19 14 41  17.1 308.1  3.7       0.0     5     5032   06 44 42
06 45 42  =1530+239    19 15 41  17.0 307.9  3.7       0.0    60     5047   06 44 43

06 45 42  J1532+2344   19 15 41  17.0 307.9  3.7       0.0   -20     5047   No stop 
06 46 12  =1530+239    19 16 11  16.9 307.8  3.7       0.0    10     5055   06 45 43

06 46 42  ARP220       19 16 40  17.3 307.9  3.7       0.0     4     5055   06 46 42
06 48 42  ---          19 18 41  17.0 307.6  3.7       0.0   120     5086   06 46 43

06 49 12  J1532+2344   19 19 11  16.3 307.4  3.8       0.0     5     5086   06 49 12
06 50 12  =1530+239    19 20 11  16.2 307.2  3.8       0.0    60     5101   06 49 13

06 50 12  J1532+2344   19 20 11  16.2 307.2  3.8       0.0   -20     5101   No stop 
06 50 42  =1530+239    19 20 41  16.1 307.2  3.8       0.0    10     5109   06 50 13

06 51 11  ARP220       19 21 11  16.5 307.2  3.8       0.0     4     5109   06 51 11
06 53 11  ---          19 23 11  16.2 306.9  3.8       0.0   120     5140   06 51 12

06 53 42  J1532+2344   19 23 41  15.5 306.7  3.8       0.0     5     5140   06 53 42
06 54 42  =1530+239    19 24 42  15.4 306.6  3.8       0.0    60     5155   06 53 43

06 54 42  J1532+2344   19 24 42  15.4 306.6  3.8       0.0   -20     5155   No stop 
06 55 12  =1530+239    19 25 12  15.3 306.5  3.9       0.0    10     5163   06 54 43
Schedule for HART      (Code Hh )                                   Page  15
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

06 55 41  ARP220       19 25 41  15.7 306.6  3.8       0.0     4     5163   06 55 41
06 57 41  ---          19 27 41  15.4 306.3  3.9       0.0   120     5194   06 55 42

06 58 11  J1532+2344   19 28 12  14.7 306.1  3.9       0.0     5     5194   06 58 11
06 59 11  =1530+239    19 29 12  14.5 305.9  3.9       0.0    60     5209   06 58 12

07 07 27  J1532+2344   19 37 29  13.0 304.7  4.1       0.0   475     5209   07 07 27
07 08 27  =1530+239    19 38 29  12.8 304.6  4.1       0.0    60     5225   07 07 28

07 08 27  J1532+2344   19 38 29  12.8 304.6  4.1       0.0   -20     5225   No stop 
07 08 57  =1530+239    19 39 00  12.7 304.5  4.1       0.0    10     5233   07 08 28

07 09 26  ARP220       19 39 29  13.2 304.6  4.1       0.0     3     5233   07 09 26
07 11 26  ---          19 41 29  12.8 304.3  4.1       0.0   120     5264   07 09 27

07 11 56  J1532+2344   19 41 59  12.2 304.1  4.1       0.0     4     5264   07 11 56
07 12 56  =1530+239    19 42 59  12.0 304.0  4.2       0.0    60     5279   07 11 57

07 12 56  J1532+2344   19 42 59  12.0 304.0  4.2       0.0   -20     5279   No stop 
07 13 26  =1530+239    19 43 29  11.9 303.9  4.2       0.0    10     5287   07 12 57

07 13 55  ARP220       19 43 58  12.4 304.0  4.1       0.0     3     5287   07 13 55
07 15 55  ---          19 45 58  12.0 303.7  4.2       0.0   120     5318   07 13 56

07 16 25  J1532+2344   19 46 28  11.3 303.5  4.2       0.0     4     5318   07 16 25
07 17 25  =1530+239    19 47 28  11.2 303.4  4.2       0.0    60     5333   07 16 26

07 17 25  J1532+2344   19 47 28  11.2 303.4  4.2       0.0   -20     5333   No stop 
07 17 55  =1530+239    19 47 58  11.1 303.3  4.2       0.0    10     5341   07 17 26

07 18 23  ARP220       19 48 27  11.5 303.4  4.2       0.0     3     5341   07 18 23
07 20 23  ---          19 50 28  11.1 303.1  4.2       0.0   120     5372   07 18 24

07 20 53  J1532+2344   19 50 57  10.5 302.9  4.3       0.0     4     5372   07 20 53
07 21 53  =1530+239    19 51 57  10.3 302.8  4.3       0.0    60     5387   07 20 54

07 21 53  J1532+2344   19 51 57  10.3 302.8  4.3       0.0   -20     5387   No stop 
07 22 23  =1530+239    19 52 28  10.2 302.7  4.3       0.0    10     5395   07 21 54

07 22 52  ARP220       19 52 56  10.7 302.8  4.3       0.0     3     5395   07 22 52
07 24 52  ---          19 54 57  10.3 302.5  4.3       0.0   120     5426   07 22 53

07 25 21  J1532+2344   19 55 26   9.7 302.3  4.4       0.0     4     5426   07 25 21
07 26 21  =1530+239    19 56 26   9.5 302.2  4.4       0.0    60     5441   07 25 22
Schedule for HART      (Code Hh )                                   Page  16
               3.6cm global VLBI observations of the starburst galaxy Arp 220
  UP:  D => Below limits;  H => Below horizon mask;  W => still slewing at end;  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Disk: GBytes recorded to this point.
  TPStart:  Recording start time.  Frequencies are LO sum (band edge).
  SYNC: Time correlator is expected to sync up.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Disk   TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell   GBytes    SYNC
----------------------------------------------------------------------------------------

 --- Thu   2 Mar 2023   Day  61 ---

07 26 21  J1532+2344   19 56 26   9.5 302.2  4.4       0.0   -20     5441   No stop 
07 26 51  =1530+239    19 56 56   9.4 302.1  4.4       0.0    10     5449   07 26 22

07 27 20  ARP220       19 57 25   9.8 302.2  4.4       0.0     3     5449   07 27 20
07 29 20  ---          19 59 25   9.4 301.9  4.4       0.0   120     5480   07 27 21


SETUP FILE INFORMATION:
   NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings.


 ======== Setup file: sess123.X2048glob
   Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat:
     hhsx            Values confirmed by E-mail Jonathan Quick 20140219 (CR)
    ****** Only  256.00 of  512.00 MHz total bandwidth is within the IFs
           in the setup file before any FREQ or DOPPLER shifts.

   Setup group:   14         Station: HART              Total bit rate:  2048
   Format: VDIF              Bits per sample: 2         Sample rate: 64.000
   Number of channels: 16    DBE type: DBBC_DDC         Speedup factor:   1.00

   Disk used to record data.

   1st LO=   8080.00   8080.00   8080.00   8080.00   8080.00   8080.00   8080.00   8080.00
             8080.00   8080.00   8080.00   8080.00   8080.00   8080.00   8080.00   8080.00
   Net SB=         L         L         U         U         L         L         U         U
                   L         L         U         U         L         L         U         U
   IF SB =         U         U         U         U         U         U         U         U
                   U         U         U         U         U         U         U         U
   Pol.  =      RCP       LCP       RCP       LCP       RCP       LCP       RCP       LCP 
                RCP       LCP       RCP       LCP       RCP       LCP       RCP       LCP 
   BBC   =         1         9         1         9         2        10         2        10
                   3        11         3        11         4        12         4        12
   BBC SB=         L         L         U         U         L         L         U         U
                   L         L         U         U         L         L         U         U
   IF    =        A1        C1        A1        C1        A1        C1        A1        C1
                  A1        C1        A1        C1        A1        C1        A1        C1

  The following frequency sets based on these setups were used.

   Frequency Set:  10  Setup file default.  Used with PCAL = off
   LO sum=   8272.00  8272.00  8272.00  8272.00  8336.00  8336.00  8336.00  8336.00
             8400.00  8400.00  8400.00  8400.00  8464.00  8464.00  8464.00  8464.00
   BBC fr=    192.00   192.00   192.00   192.00   256.00   256.00   256.00   256.00
              320.00   320.00   320.00   320.00   384.00   384.00   384.00   384.00
   Bandwd=     32.00    32.00    32.00    32.00    32.00    32.00    32.00    32.00
               32.00    32.00    32.00    32.00    32.00    32.00    32.00    32.00
    Matching frequency sets:  10

   Track assignments are: 
    track1=   1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16
    barrel=roll_off 

 POSITIONS OF SOURCES USED IN RECORDING SCANS

   Source                         Source position (RA/Dec)                        Error
                        (B1950)             (J2000)             (Date)            (mas)

 * ARP220            15 32 46.905485   * 15 34 57.250000     15 35 57.638290       0.00
                     23 40 07.75728    * 23 30 11.33000      23 25 19.02820        0.00
                     From catalog imbedded in main SCHED input file.

 * 3C286             13 28 49.657769   * 13 31 08.288061     13 32 13.263724       0.17
   J1331+3030        30 45 58.64066    * 30 30 32.95930      30 23 12.26523        0.16
   1328+307          /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc
   J1331+30          GSFC 2016a X/S astro solution,    269 observations.

 * OQ208             14 04 45.615156   * 14 07 00.394415     14 08 03.396716       0.24
   J1407+2827        28 41 29.23515    * 28 27 14.69019      28 20 25.40174        0.35
   1404+286          /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc
   J1407+28          GSFC 2016a X/S astro solution,  68278 observations.

   1514+197          15 14 40.985841   * 15 16 56.796164     15 17 59.778756       0.01
 * J1516+1932        19 43 10.94247    * 19 32 12.99203      19 26 53.88295        0.02
   J1516+19          /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc
                     GSFC 2016a X/S astro solution,   4472 observations.

   1530+239          15 30 36.092759   * 15 32 46.345214     15 33 46.707178       0.08
 * J1532+2344        23 54 09.32913    * 23 44 05.26796      23 39 09.44313        0.14
                     /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc
                     GSFC 2016a X/S astro solution,    171 observations.



SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE

     Scan hours are for recording scans only. 
     Baseline hours are only counted for scans above horizon at both ends.
  Source       Setup file             Frequency sets                  Observing hours
                                   (duplicates not shown)              Scan  Baseline
  ARP220     sess123.X2048glob     1 2 3 4 5 6 7 8 9 10 12 13  +     7.808   670.409
  3C286      sess123.X2048glob     13                                0.133     0.000
  OQ208      sess123.X2048glob     1 2 3 4 5 6 7 8 9 10 12 13  +     1.504   118.536
  J1516+1932 sess123.X2048glob     1 2 3 4 5 6 7 8 9 10 12           0.083     5.500
  J1532+2344 sess123.X2048glob     1 2 3 4 5 6 7 8 9 10 12 13  +     5.125   433.102


EFFECT OF SOLAR CORONA

  The solar corona can cause unstable phases for sources too close to the Sun.
  SCHED provides warnings at individual scans for distances less than 10 degrees.
  The distance from the Sun to each source in this schedule is:
    Source         Sun distance (deg) 
   ARP220             110.2
   3C286              135.9
   OQ208              129.2
   J1516+1932         114.5
   J1532+2344         110.7

  Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes 
  that the Sun will cause amplitude reductions on the  longest VLBA baselines 
  at a solar distance of 60deg F^(-0.6) where F is in GHz. 
  For common VLBI bands, this is: 
       327 MHz        117. deg 
       610 MHz         81. deg 
       1.6 GHz         45. deg 
       2.3 GHz         36. deg 
       5.0 GHz         23. deg 
       8.4 GHz         17. deg 
      15.0 GHz         12. deg 
      22.0 GHz          9. deg 
      43.0 GHz          6. deg 

