  COVER INFORMATION 

 Station:    HART      (Code Hh ) 
 Experiment: M87 high-resolution jet imaging
 Exp. Code:  ek044   


Schedule Version:       2.00
Processed by SCHED version:  11.50  Development version 11.5. Started Apr. 2

PI:       Evgeniya Kravchenko

Address:  INAF Instituto di Radioastronomia
          via Piero Gobetti 101
          40129 Bologna
          Italy

Phone:    +39 37 13530918
EMAIL:    evgeniya.kravchenko@inaf.it
Fax:      +39 051 6399431
Phone during observation: +39 37 13530918

Observing mode:

Notes:
 
 
 


COVER LETTER:


This is the schedule for single-epoch M87 observations at 1.3cm. It includes Jb2 Ef On60 Ur Tr Ys Sv Zc Bd Sr Mh Kt Ky Ku T6 Hh at a standard 1 Gbps continuum mode. Unfortunately, Mc and Nt are not available. Hh participation is highly desirable.

Gaps between scans are adjusted to allow pointing for Effelsberg, which should be checked periodically (8 minute gaps every 2 hours). Fringe finder is 3C273 (two scans, for Asia and Europe). Kvazar has daily IVS sessions, and will quit during 1830-2130 UT.

Schedule for HART      (Code Hh )                                   Page   2
               M87 high-resolution jet imaging
  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
----------------------------------------------------------------------------------------

 --- Mon   2 Mar 2020   Day  62 ---

 Next scan frequencies:  22187.49  22187.49  22187.49  22187.49  22219.49  22219.49  22219.49  22219.49
                         22251.49  22251.49  22251.49  22251.49  22283.49  22283.49  22283.49  22283.49
 Next BBC frequencies:     187.49    187.49    187.49    187.49    219.49    219.49    219.49    219.49
                           251.49    251.49    251.49    251.49    283.49    283.49    283.49    283.49
 Next scan bandwidths:      16.00     16.00     16.00     16.00     16.00     16.00     16.00     16.00
                            16.00     16.00     16.00     16.00     16.00     16.00     16.00     16.00

19 45 12  M87          08 20 10  17.9  66.1 -4.2       0.0     0        0   19 45 12
19 54 52  ---          08 29 51  19.9  64.7 -4.0       0.0   580       75   19 45 13

19 55 12  M87          08 30 12  20.0  64.7 -4.0       0.0     0       75   19 55 12
20 04 52  ---          08 39 54  21.9  63.3 -3.9       0.0   580      149   19 55 13

20 05 13  M87          08 40 15  22.0  63.2 -3.9       0.0     0      149   20 05 13
20 14 53  ---          08 49 56  23.9  61.7 -3.7       0.0   580      224   20 05 14

20 15 14  M87          08 50 17  24.0  61.7 -3.7       0.0     0      224   20 15 14
20 24 54  ---          08 59 59  25.9  60.1 -3.5       0.0   580      299   20 15 15

20 25 14  M87          09 00 19  26.0  60.1 -3.5       0.0     0      299   20 25 14
20 34 54  ---          09 10 01  27.8  58.4 -3.4       0.0   580      374   20 25 15

20 35 15  M87          09 10 22  27.9  58.4 -3.4       0.0     0      374   20 35 15
20 44 55  ---          09 20 03  29.7  56.7 -3.2       0.0   580      448   20 35 16

20 45 16  M87          09 20 24  29.8  56.6 -3.2       0.0     0      448   20 45 16
20 54 56  ---          09 30 06  31.6  54.8 -3.0       0.0   580      523   20 45 17

21 02 56  M87          09 38 07  33.1  53.3 -2.9       0.0   458      523   21 02 56
21 12 36  ---          09 47 49  34.8  51.3 -2.7       0.0   580      598   21 02 57

21 12 57  M87          09 48 09  34.8  51.2 -2.7       0.0     0      598   21 12 57
21 22 37  ---          09 57 51  36.5  49.2 -2.6       0.0   580      672   21 12 58

21 22 57  M87          09 58 12  36.6  49.1 -2.6       0.0     0      672   21 22 57
21 32 37  ---          10 07 53  38.2  46.9 -2.4       0.0   580      747   21 22 58

21 32 58  M87          10 08 14  38.3  46.9 -2.4       0.0     0      747   21 32 58
21 42 38  ---          10 17 56  39.8  44.6 -2.2       0.0   580      822   21 32 59

21 42 59  M87          10 18 16  39.9  44.5 -2.2       0.0     0      822   21 42 59
21 52 39  ---          10 27 58  41.4  42.1 -2.1       0.0   580      897   21 43 00

21 52 59  M87          10 28 19  41.4  42.0 -2.1       0.0     0      897   21 52 59
22 02 39  ---          10 38 00  42.8  39.4 -1.9       0.0   580      971   21 53 00
Schedule for HART      (Code Hh )                                   Page   3
               M87 high-resolution jet imaging
  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
----------------------------------------------------------------------------------------

 --- Mon   2 Mar 2020   Day  62 ---

22 03 00  M87          10 38 21  42.9  39.3 -1.9       0.0     0      971   22 03 00
22 12 40  ---          10 48 03  44.2  36.6 -1.7       0.0   580     1046   22 03 01

22 13 01  M87          10 48 23  44.3  36.5 -1.7       0.0     0     1046   22 13 01
22 22 41  ---          10 58 05  45.5  33.7 -1.6       0.0   580     1121   22 13 02

22 23 45  3C273        10 59 09  54.5  41.8 -1.5       0.0    16     1121   22 23 45
22 29 45  ---          11 05 10  55.4  39.6 -1.4       0.0   360     1167   22 23 46

22 30 49  M87          11 06 15  46.5  31.2 -1.4       0.0    17     1167   22 30 49
22 40 29  ---          11 15 56  47.6  28.1 -1.3       0.0   580     1242   22 30 50

22 40 50  M87          11 16 17  47.6  28.0 -1.3       0.0     0     1242   22 40 50
22 50 30  ---          11 25 59  48.6  24.8 -1.1       0.0   580     1317   22 40 51

22 50 51  M87          11 26 20  48.6  24.6 -1.1       0.0     0     1317   22 50 51
23 00 31  ---          11 36 01  49.5  21.3 -0.9       0.0   580     1391   22 50 52

23 00 52  M87          11 36 22  49.5  21.1 -0.9       0.0     0     1391   23 00 52
23 10 32  ---          11 46 04  50.2  17.6 -0.8       0.0   580     1466   23 00 53

23 18 32  M87          11 54 05  50.7  14.7 -0.6       0.0   458     1466   23 18 32
23 28 12  ---          12 03 46  51.2  11.0 -0.5       0.0   580     1541   23 18 33

23 28 32  M87          12 04 07  51.2  10.9 -0.5       0.0     0     1541   23 28 32
23 38 12  ---          12 13 49  51.6   7.1 -0.3       0.0   580     1615   23 28 33

23 38 33  M87          12 14 10  51.6   7.0 -0.3       0.0     0     1615   23 38 33
23 48 13  ---          12 23 51  51.8   3.2 -0.1       0.0   580     1690   23 38 34

23 48 34  M87          12 24 12  51.8   3.0 -0.1       0.0     0     1690   23 48 34
23 58 14  ---          12 33 54  51.8 359.2  0.0       0.0   580     1765   23 48 35

 --- Start: Mon   2 Mar 2020   Day  62 -- Stop: Tue   3 Mar 2020   Day  63 ---

23 58 34  M87          12 34 14  51.8 359.1  0.0       0.0     0     1765   23 58 34
00 08 14  ---          12 43 56  51.7 355.2  0.2       0.0   580     1840   23 58 35

00 08 35  M87          12 44 17  51.7 355.1  0.2       0.0     0     1840   00 08 35
00 18 15  ---          12 53 58  51.5 351.3  0.4       0.0   580     1914   00 08 36

00 18 36  M87          12 54 19  51.4 351.2  0.4       0.0     0     1914   00 18 36
00 28 16  ---          13 04 01  51.0 347.4  0.5       0.0   580     1989   00 18 37
Schedule for HART      (Code Hh )                                   Page   4
               M87 high-resolution jet imaging
  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
----------------------------------------------------------------------------------------

 --- Tue   3 Mar 2020   Day  63 ---

00 28 37  M87          13 04 21  51.0 347.3  0.5       0.0     0     1989   00 28 37
00 38 17  ---          13 14 03  50.5 343.7  0.7       0.0   580     2064   00 28 38

00 38 37  M87          13 14 24  50.5 343.5  0.7       0.0     0     2064   00 38 37
00 48 17  ---          13 24 05  49.8 340.0  0.9       0.0   580     2138   00 38 38

00 48 38  M87          13 24 26  49.7 339.9  0.9       0.0     0     2138   00 48 38
00 58 18  ---          13 34 08  48.9 336.5  1.0       0.0   580     2213   00 48 39

00 59 29  3C273        13 35 19  58.0 328.0  1.1       0.0    23     2213   00 59 29
01 05 29  ---          13 41 20  57.3 325.6  1.2       0.0   360     2259   00 59 30

01 06 40  M87          13 42 31  48.1 333.6  1.2       0.0    23     2259   01 06 40
01 16 20  ---          13 52 13  47.1 330.4  1.3       0.0   580     2334   01 06 41

01 24 20  M87          14 00 14  46.2 327.9  1.5       0.0   458     2334   01 24 20
01 34 00  ---          14 09 56  45.0 325.0  1.6       0.0   580     2409   01 24 21

01 34 21  M87          14 10 16  44.9 324.9  1.6       0.0     0     2409   01 34 21
01 44 01  ---          14 19 58  43.6 322.1  1.8       0.0   580     2484   01 34 22

01 44 21  M87          14 20 19  43.6 322.1  1.8       0.0     0     2484   01 44 21
01 54 01  ---          14 30 00  42.2 319.4  2.0       0.0   580     2558   01 44 22

01 54 22  M87          14 30 21  42.2 319.3  2.0       0.0     0     2558   01 54 22
02 04 02  ---          14 40 03  40.7 316.8  2.1       0.0   580     2633   01 54 23

02 04 23  M87          14 40 23  40.7 316.8  2.1       0.0     0     2633   02 04 23
02 14 03  ---          14 50 05  39.1 314.4  2.3       0.0   580     2708   02 04 24

02 14 24  M87          14 50 26  39.1 314.3  2.3       0.0     0     2708   02 14 24
02 24 04  ---          15 00 07  37.5 312.1  2.5       0.0   580     2782   02 14 25

02 32 04  M87          15 08 09  36.1 310.3  2.6       0.0   458     2782   02 32 04
02 41 44  ---          15 17 50  34.4 308.3  2.8       0.0   580     2857   02 32 05

02 42 04  M87          15 18 11  34.4 308.2  2.8       0.0     0     2857   02 42 04
02 51 44  ---          15 27 53  32.6 306.3  2.9       0.0   580     2932   02 42 05

02 52 05  M87          15 28 13  32.6 306.2  2.9       0.0     0     2932   02 52 05
03 01 45  ---          15 37 55  30.8 304.4  3.1       0.0   580     3007   02 52 06

03 02 06  M87          15 38 16  30.7 304.3  3.1       0.0     0     3007   03 02 06
03 11 46  ---          15 47 57  28.9 302.6  3.3       0.0   580     3081   03 02 07
Schedule for HART      (Code Hh )                                   Page   5
               M87 high-resolution jet imaging
  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
----------------------------------------------------------------------------------------

 --- Tue   3 Mar 2020   Day  63 ---

03 12 06  M87          15 48 18  28.9 302.5  3.3       0.0     0     3081   03 12 06
03 21 46  ---          15 58 00  27.0 300.8  3.4       0.0   580     3156   03 12 07

03 22 07  M87          15 58 21  26.9 300.8  3.4       0.0     0     3156   03 22 07
03 31 47  ---          16 08 02  25.0 299.2  3.6       0.0   580     3231   03 22 08

03 32 08  M87          16 08 23  25.0 299.1  3.6       0.0     0     3231   03 32 08
03 41 48  ---          16 18 04  23.1 297.6  3.8       0.0   580     3305   03 32 09

03 49 48  M87          16 26 06  21.4 296.4  3.9       0.0   458     3305   03 49 48
03 59 28  ---          16 35 47  19.5 295.0  4.1       0.0   580     3380   03 49 49

03 59 49  M87          16 36 08  19.4 294.9  4.1       0.0     0     3380   03 59 49
04 09 29  ---          16 45 50  17.4 293.6  4.2       0.0   580     3455   03 59 50

04 09 49  M87          16 46 11  17.4 293.5  4.2       0.0     0     3455   04 09 49
04 19 29  ---          16 55 52  15.3 292.2  4.4       0.0   580     3530   04 09 50

04 19 50  M87          16 56 13  15.3 292.2  4.4       0.0     0     3530   04 19 50
04 29 30  ---          17 05 54  13.2 290.9  4.6       0.0   580     3604   04 19 51

04 29 51  M87          17 06 15  13.2 290.9  4.6       0.0     0     3604   04 29 51
04 39 31  ---          17 15 57  11.1 289.7  4.7       0.0   580     3679   04 29 52

04 39 51  M87          17 16 18  11.1 289.6  4.7       0.0     0     3679   04 39 51
04 49 31  ---          17 25 59   9.0 288.4  4.9       0.0   580     3754   04 39 52

04 49 51  M87          17 26 19   8.9 288.4  4.9       0.0    -1     3754   04 49 51
04 59 31  ---          17 36 01   6.8 287.2  5.1  D    0.0     0     3829   04 49 52


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


 ======== Setup file: sess120.K1024
 --- WARNING ---  This group does not match an entry in the frequency catalog.
                  This might be ok because the catalog is not complete.
                  But be very careful to be sure that the setup is correct.

   Setup group:    7         Station: HART              Total bit rate:  1024
   Format: VDIF              Bits per sample: 2         Sample rate: 32.000
   Number of channels: 16    DBE type: DBBC_DDC         Speedup factor:   1.00

   Disk used to record data.

   1st LO=  22000.00  22000.00  22000.00  22000.00  22000.00  22000.00  22000.00  22000.00
            22000.00  22000.00  22000.00  22000.00  22000.00  22000.00  22000.00  22000.00
   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:  16  Setup file default.  Used with PCAL = off
   LO sum=   22187.49  22187.49  22187.49  22187.49  22219.49  22219.49  22219.49  22219.49
             22251.49  22251.49  22251.49  22251.49  22283.49  22283.49  22283.49  22283.49
   BBC fr=     187.49    187.49    187.49    187.49    219.49    219.49    219.49    219.49
               251.49    251.49    251.49    251.49    283.49    283.49    283.49    283.49
   Bandwd=      16.00     16.00     16.00     16.00     16.00     16.00     16.00     16.00
                16.00     16.00     16.00     16.00     16.00     16.00     16.00     16.00
    Matching frequency sets:  16

   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)

   3C273B            12 26 33.245835   * 12 29 06.699731     12 30 08.712091       1.03
   J1229+0203        02 19 43.30570    * 02 03 08.59820      01 56 26.28114        1.38
 * 3C273             /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc
   1226+023          GSFC 2016a X/S astro solution,  32136 observations.
   J1229+02

   3C274             12 28 17.569280   * 12 30 49.423383     12 31 50.782693       0.00
   J1230+1223        12 40 01.74892    * 12 23 28.04374      12 16 44.69064        0.00
   1228+126          /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc
   J1230+12          GSFC 2016a X/S astro solution,  68465 observations.
 * M87



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
  3C273      sess120.K1024         1 2 5 6 9 10 11 12 13 14 15 +     0.300    19.000
  M87        sess120.K1024         1 2 5 6 9 10 11 12 13 14 15 +    14.472   777.244


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) 
   3C273              156.2
   M87                155.9

  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 

