  COVER INFORMATION 

 Station:    VLBA_FD   (Code Fd ) 
 Experiment: GD017 VLBA format, 18 cm, Arp 220, Phil Diamond, November 2003
 Exp. Code:  GD017   


Schedule Version:       1.00                                              
Processed by SCHED version: Release of 18 Sept. 2003                      

PI:       Phil Diamond                                                    

Address:  MERLIN/VLBI National Facility                                   
          Jodrell Bank, Macclesfield                                      
          Cheshire, SK11 9DL                                              
          England                                                         

Phone:    (+44) (0)1477 572625                                            
EMAIL:    pdiamond@jb.man.ac.uk                                           
Fax:      (+44) (0)1477 571618                                            
Phone during observation: (+44) (0)1477 572625                            

Observing mode: 256-8-2                                                   

Notes:    Primary fringe finder 1613+341                                  
                                                                          
                                                                          
                                                                          

Schedule for VLBA_FD   (Code Fd )                                   Page   2
               GD017 VLBA format, 18 cm, Arp 220, Phil Diamond, November 2003
  UP:  D => Below limits;  H => Below horizon mask.  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Tapes: Drive, Index, Start footage / Direction, Head Group, End footage.
  TPStart:  Tape motion start time.  Frequencies are LO sum (band edge).
     Automatic tape allocation specified.  Tape positions are just estimates.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Tapes      TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell  (see above)
----------------------------------------------------------------------------------------

 --- Sun   9 Nov 2003   Day 313 ---

 Next scan frequencies:  1633.99  1633.99  1641.99  1641.99  1649.99  1649.99
                         1657.99  1657.99
 Next BBC frequencies:    766.01   766.01   758.01   758.01   750.01   750.01
                          742.01   742.01
 Next scan bandwidths:      8.00     8.00     8.00     8.00     8.00     8.00
                            8.00     8.00

13 30 00  1613+341     09 47 29  11.8  57.1 -6.4     -60.8     0   1  1      0  13 30 00
13 33 00  ---          09 50 29  12.4  57.4 -6.4     -61.2   180   F  1   2400

13 33 00  ARP220       09 50 29  14.8  71.2 -5.7     -62.6   -15   1  1   2400  13 33 00
13 52 00  ---          10 09 32  18.7  73.2 -5.4     -63.9  1125   F  1  17600

13 53 00  ARP220       10 10 32  18.9  73.4 -5.4     -64.0    54   1  2  17600  13 53 00
14 15 00  ---          10 32 36  23.5  75.7 -5.0     -65.4  1320   R  1      0

14 17 00  ARP220       10 34 36  23.9  75.9 -5.0     -65.5   113   1  3      0  14 17 00
14 39 00  ---          10 56 40  28.6  78.2 -4.6     -66.7  1320   F  1  17600

14 41 00  ARP220       10 58 40  29.0  78.4 -4.6     -66.8   113   1  4  17600  14 41 00
15 03 00  ---          11 20 44  33.7  80.7 -4.2     -67.8  1320   R  1      0

15 10 00  1516+193     11 27 45  37.4  88.0 -3.8     -65.8   406   1  5      0  15 10 00
15 13 00  ---          11 30 45  38.1  88.3 -3.8     -65.9   180   F  1   2400

15 13 00  ARP220       11 30 45  35.8  81.7 -4.1     -68.2   -11   1  5   2400  15 13 00
15 32 00  ---          11 49 49  39.8  83.7 -3.8     -68.8  1129   F  1  17600

15 35 00  ARP220       11 52 49  40.5  84.1 -3.7     -68.9   173   1  6  17600  15 35 00
15 57 00  ---          12 14 53  45.2  86.5 -3.3     -69.5  1320   R  1      0

16 00 00  ARP220       12 17 53  45.9  86.9 -3.3     -69.5   173   1  7      0  16 00 00
16 22 00  ---          12 39 57  50.6  89.5 -2.9     -69.7  1320   F  1  17600

16 25 00  ARP220       12 42 57  51.3  89.9 -2.9     -69.7   173   1  8  17600  16 25 00
16 47 00  ---          13 05 01  56.0  92.8 -2.5     -69.6  1320   R  1      0

16 50 00  1516+193     13 08 01  58.9 103.3 -2.2     -62.7   167   1  9      0  16 50 00
16 56 00  ---          13 14 02  60.1 104.6 -2.1     -62.1   360   F  1   4800

16 56 00  ARP220       13 14 02  57.9  94.2 -2.4     -69.3   -13   1  9   4800  16 56 00
17 12 00  ---          13 30 05  61.4  96.8 -2.1     -68.7   947   F  1  17600
Schedule for VLBA_FD   (Code Fd )                                   Page   3
               GD017 VLBA format, 18 cm, Arp 220, Phil Diamond, November 2003
  UP:  D => Below limits;  H => Below horizon mask.  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Tapes: Drive, Index, Start footage / Direction, Head Group, End footage.
  TPStart:  Tape motion start time.  Frequencies are LO sum (band edge).
     Automatic tape allocation specified.  Tape positions are just estimates.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Tapes      TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell  (see above)
----------------------------------------------------------------------------------------

 --- Sun   9 Nov 2003   Day 313 ---

17 15 00  ARP220       13 33 05  62.0  97.3 -2.0     -68.5   173   1 10  17600  17 15 00
17 37 00  ---          13 55 09  66.7 101.8 -1.7     -66.7  1320   R  1      0

17 40 00  ARP220       13 58 10  67.3 102.5 -1.6     -66.4   173   1 11      0  17 40 00
18 02 00  ---          14 20 13  71.9 108.7 -1.2     -62.7  1320   F  1  17600

18 05 00  1613+341     14 23 14  66.5  74.0 -1.8     -91.0   151   1 12  17600  18 05 00
18 08 00  ---          14 26 14  67.1  73.9 -1.8     -91.5   180   R  1  15200

18 08 00  ARP220       14 26 14  73.1 110.9 -1.1     -61.2   -31   1 12  15200  18 08 00
18 27 00  ---          14 45 17  76.8 119.8 -0.8     -54.5  1109   R  1      0

18 30 00  ARP220       14 48 18  77.4 121.7 -0.8     -53.0   173   1 13      0  18 30 00
18 52 00  ---          15 10 21  81.0 140.9 -0.4     -36.3  1320   F  1  17600

19 10 00  1613+341     15 28 24  79.8  66.6 -0.8    -107.3  1024   1 14  17600  19 10 00
19 13 00  ---          15 31 25  80.4  65.5 -0.7    -108.9   180   R  1  15200

19 13 00  ARP220       15 31 25  82.8 173.3 -0.1      -6.3   -78   1 14  15200  19 13 00
19 32 00  ---          15 50 28  82.1 206.5  0.3      24.8  1062   R  1      0

-----------  Tape Change ------------

19 35 00  ARP220       15 53 28  81.8 210.9  0.3      28.8   171   2  1      0  19 35 00
19 57 00  ---          16 15 32  78.5 234.0  0.7      49.4  1320   F  1  17600

20 00 00  ARP220       16 18 33  78.0 236.1  0.7      51.2   173   2  2  17600  20 00 00
20 22 00  ---          16 40 36  73.8 247.8  1.1      60.3  1320   R  1      0

20 25 00  ARP220       16 43 37  73.2 249.0  1.1      61.2   173   2  3      0  20 25 00
20 47 00  ---          17 05 40  68.7 256.0  1.5      65.5  1320   F  1  17600

20 50 00  1613+341     17 08 41  77.9 290.7  0.9     103.4   151   2  4  17600  20 50 00
20 53 00  ---          17 11 41  77.3 290.1  1.0     102.3   180   R  1  15200

20 53 00  ARP220       17 11 41  67.4 257.5  1.6      66.3   -28   2  4  15200  20 53 00
21 12 00  ---          17 30 44  63.4 261.5  1.9      68.1  1112   R  1      0

21 15 00  ARP220       17 33 45  62.7 262.1  2.0      68.3   173   2  5      0  21 15 00
21 37 00  ---          17 55 49  58.0 265.8  2.3      69.3  1320   F  1  17600

21 40 00  ARP220       17 58 49  57.4 266.2  2.4      69.4   173   2  6  17600  21 40 00
22 02 00  ---          18 20 53  52.6 269.3  2.8      69.7  1320   R  1      0
Schedule for VLBA_FD   (Code Fd )                                   Page   4
               GD017 VLBA format, 18 cm, Arp 220, Phil Diamond, November 2003
  UP:  D => Below limits;  H => Below horizon mask.  blank => Up.
  Early: Seconds between end of slew and start.   Dwell: On source seconds. 
  Tapes: Drive, Index, Start footage / Direction, Head Group, End footage.
  TPStart:  Tape motion start time.  Frequencies are LO sum (band edge).
     Automatic tape allocation specified.  Tape positions are just estimates.
----------------------------------------------------------------------------------------
Start UT  Source               Start / Stop                 Early    Tapes      TPStart
Stop UT                  LST      EL    AZ   HA  UP   ParA  Dwell  (see above)
----------------------------------------------------------------------------------------

 --- Sun   9 Nov 2003   Day 313 ---

22 05 00  ARP220       18 23 53  52.0 269.7  2.8      69.7   173   2  7      0  22 05 00
22 27 00  ---          18 45 57  47.2 272.4  3.2      69.6  1320   F  1  17600

22 30 00  1613+341     18 48 57  57.3 286.7  2.6      85.3   154   2  8  17600  22 30 00
22 36 00  ---          18 54 58  56.0 286.9  2.7      84.6   360   R  1  12800

22 36 00  ARP220       18 54 58  45.3 273.5  3.3      69.5   -27   2  8  12800  22 36 00
22 52 00  ---          19 11 01  41.8 275.3  3.6      69.1   933   R  1      0

22 55 00  ARP220       19 14 01  41.2 275.6  3.6      69.0   173   2  9      0  22 55 00
23 17 00  ---          19 36 05  36.5 277.9  4.0      68.3  1320   F  1  17600

23 17 00  ARP220       19 36 05  36.5 277.9  4.0      68.3    -4   2 10  17600  23 17 00
23 32 00  ---          19 51 07  33.3 279.5  4.3      67.7   896   R  1   5600

 --- Mon  10 Nov 2003   Day 314 ---

00 05 00  1613+341     20 24 13  37.9 291.5  4.2      75.4  1965   2 10   5600  00 05 00
00 08 00  ---          20 27 13  37.3 291.7  4.2      75.1   180   R  1   3200

00 08 00  ARP220       20 27 13  25.7 283.3  4.9      66.0   -29   2 11   3200  00 08 00
00 27 00  ---          20 46 16  21.7 285.2  5.2      64.9  1111   F  1  12000

00 30 00  ARP220       20 49 17  21.1 285.6  5.2      64.7   173   2 12  12000  00 30 00
00 52 00  ---          21 11 21  16.5 287.9  5.6      63.2  1320   R  1   5600

00 55 00  ARP220       21 14 21  15.9 288.2  5.7      63.0   173   2 13   5600  00 55 00
01 17 00  ---          21 36 25  11.5 290.7  6.0      61.4  1320   F  1  12000

01 17 00  ARP220       21 36 25  11.5 290.7  6.0      61.4    -4   2 14  12000  01 17 00
01 32 00  ---          21 51 27   8.4 292.4  6.3      60.2   896   R  1  11200

01 35 00  1613+341     21 54 28  20.3 298.5  5.7      66.1   150   2 14  11200  01 35 00
01 38 00  ---          21 57 28  19.7 298.8  5.7      65.7   180   R  1   8800


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


 Setup file: arp220.set
   Matches group v20cm_2 in /usr/local/vlbi_sched/catalogs/freq.dat
    FD filtered above 1760.  SC filtered above 1740.

   Setup group:    7         Station: VLBA              Total bit rate:  256
   Format: VLBA1:2           Bits per sample: 2         Sample rate: 16.000
   Number of channels:  8    Passes/head pos:   1       Speedup factor:   1.00

   Tape speeds: Low density - 266.660 ips,  High density - 160.00 ips
   Time per pass for  17600 ft, High density tapes is: 00:22:00

   1st LO=   2400.00   2400.00   2400.00   2400.00   2400.00   2400.00   2400.00   2400.00
   Net SB=         U         U         U         U         U         U         U         U
   Pol.  =      RCP       LCP       RCP       LCP       RCP       LCP       RCP       LCP 
   BBC   =         1         2         3         4         5         6         7         8
   BBC SB=         L         L         L         L         L         L         L         L
   IF    =        A         C         A         C         A         C         A         C 

   VLBA FE=     20cm     omit     20cm     omit
   VLBA Synth=  15.4      2.4     15.4

  The following frequency sets based on this setup were used.

   Frequency Set:   7  Setup file default.  Used pcal sets:   1
   LO sum=    1633.99   1633.99   1641.99   1641.99   1649.99   1649.99   1657.99   1657.99
   BBC fr=     766.01    766.01    758.01    758.01    750.01    750.01    742.01    742.01
   Bandwd=      8.000     8.000     8.000     8.000     8.000     8.000     8.000     8.000

  The following pulse cal sets were used with this setup:

   Pulse cal detection set:   1  PCAL = 1MHZ
    PCALXB1=   S1    S3    S5    S7    S1    S3    S5    S7 
    PCALXB2=   S2    S4    S6    S8    S2    S4    S6    S8 
    PCALFR1=    10    10    10    10  6010  6010  6010  6010
    PCALFR2=    10    10    10    10  6010  6010  6010  6010

   Track assignments are: 
    track1=   2, 10, 18, 26,  3, 11, 19, 27
    barrel=roll_auto
 SOURCE LIST -- GD017 VLBA format, 18 cm, Arp 220, Phil Diamond, November 2003
     Catalog positions marked with *. 
     Precession of date coordinates is based on stop time of first scan.
     Names used in schedule marked with *. 
     Short names used in VLA and SNAP files marked with +. 
     Observation date used in B1950/J2000 coordinate conversion (PRECDATE):  1979.900
     No adjustments are made for rates (DRA, DDEC).

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

 * ARP220            15 32 46.880196   * 15 34 57.224670     15 35 05.162695 
                     23 40 07.99276    * 23 30 11.56400      23 29 30.36889 
                     From catalog imbedded in main SCHED input file.

 * 1516+193          15 14 40.987286   * 15 16 56.797600     15 17 05.150506 
                     19 43 10.96935    * 19 32 13.01900      19 31 27.24937 
                     From catalog imbedded in main SCHED input file.

 * 1613+341          16 11 47.914510   * 16 13 41.064500     16 13 47.680996 
                     34 20 19.83496    * 34 12 47.91000      34 12 18.07826 
                     From catalog imbedded in main SCHED input file.

 * 3C286             13 28 49.657708   * 13 31 08.288000     13 31 16.987207 
                     30 45 58.64136    * 30 30 32.96000      30 29 25.16797 
                     From catalog imbedded in main SCHED input file.



  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              41.4
   1516+193            36.7
   1613+341            54.2
   3C286               51.7

  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 

