  COVER INFORMATION 

 Station:    VLBA_FD   (Code Fd ) 
 Experiment: GP052: Scintellometry observations of B1957+20
 Exp. Code:  GP052D  


Schedule Version:       1.00
Processed by SCHED version:  11.30  Version 11.3 update 1.  April 14, 2014

PI:       Ue-Li Pen

Address:  Canadian Institute for Theoretical Astrophysics
          University of Toronto
          Toronto
          Canada

Phone:     (416) 978-6477
EMAIL:    pen@cita.utoronto.ca
Fax:       416-978-3921
Phone during observation:  (416) 978-6477

Observing mode: Continuum 90cm, pulsar gating

Notes:     **** PCALs OFF PLEASE ****
          Target pulsar bright enough to fringe on
          Fringe finder / bandpass cal: J1925+2106, J2023+3153
          Check sources: J2001+2416, J1932+1059 (pulsar)

Schedule for VLBA_FD   (Code Fd )                                   Page   2
               GP052: Scintellometry observations of B1957+20
  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  16 Jun 2014   Day 167 ---

 Next scan frequencies:  311.25  311.25  327.25  327.25  343.25  343.25  359.25  359.25
 Next BBC frequencies:   811.25  811.25  827.25  827.25  843.25  843.25  859.25  859.25
 Next scan bandwidths:    16.00   16.00   16.00   16.00   16.00   16.00   16.00   16.00

05 30 00  J1925+2106   16 11 52  45.5  90.3 -3.2     -67.3     0        0   05 30 00
05 31 30  =1923+210    16 13 22  45.8  90.5 -3.2     -67.3    90        6   05 30 01

05 32 50  J1932+1059   16 14 43  40.2 102.1 -3.3     -59.0    60        6   05 32 50
05 34 46  ---          16 16 39  40.6 102.4 -3.3     -58.9   116       13   05 32 51

05 35 46  B1957+20     16 17 39  39.4  87.2 -3.7     -66.9    41       13   05 35 46
05 44 46  ---          16 26 40  41.4  88.3 -3.6     -67.0   540       48   05 35 47

05 44 58  B1957+20     16 26 53  41.4  88.3 -3.6     -67.0     6       48   05 44 58
05 53 58  ---          16 35 54  43.3  89.4 -3.4     -67.0   540       83   05 44 59

05 54 44  J2001+2416   16 36 40  44.3  84.8 -3.4     -70.1    35       83   05 54 44
05 55 27  =1959+241    16 37 36  44.5  84.9 -3.4     -70.1    43       86   05 54 45

05 56 07  B1957+20     16 38 04  43.8  89.7 -3.4     -67.0    29       86   05 56 07
06 05 07  ---          16 47 05  45.7  90.9 -3.2     -67.0   540      120   05 56 08

06 05 19  B1957+20     16 47 17  45.8  90.9 -3.2     -67.0     6      120   06 05 19
06 14 19  ---          16 56 19  47.7  92.1 -3.1     -66.9   540      155   06 05 20

06 15 05  J2001+2416   16 57 05  48.7  87.1 -3.1     -70.6    34      155   06 15 05
06 15 48  =1959+241    16 58 00  48.9  87.2 -3.1     -70.6    43      158   06 15 06

06 16 28  B1957+20     16 58 28  48.2  92.4 -3.0     -66.9    28      158   06 16 28
06 25 28  ---          17 07 29  50.1  93.7 -2.9     -66.8   540      193   06 16 29

06 25 40  B1957+20     17 07 41  50.2  93.7 -2.9     -66.7     6      193   06 25 40
06 34 40  ---          17 16 43  52.1  95.0 -2.7     -66.5   540      227   06 25 41

06 35 26  J2001+2416   17 17 29  53.1  89.5 -2.8     -70.8    34      227   06 35 26
06 36 09  =1959+241    17 18 24  53.3  89.6 -2.7     -70.8    43      230   06 35 27

06 36 49  B1957+20     17 18 52  52.6  95.4 -2.7     -66.4    28      230   06 36 49
06 45 49  ---          17 27 54  54.5  96.8 -2.5     -66.1   540      265   06 36 50

06 46 01  B1957+20     17 28 06  54.5  96.8 -2.5     -66.1     6      265   06 46 01
06 55 01  ---          17 37 07  56.5  98.3 -2.4     -65.6   540      300   06 46 02

06 55 47  J2001+2416   17 37 53  57.4  92.2 -2.4     -70.7    33      300   06 55 47
06 56 30  =1959+241    17 38 48  57.6  92.3 -2.4     -70.6    43      303   06 55 48
Schedule for VLBA_FD   (Code Fd )                                   Page   3
               GP052: Scintellometry observations of B1957+20
  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  16 Jun 2014   Day 167 ---

06 57 10  B1957+20     17 39 16  56.9  98.7 -2.4     -65.5    28      303   06 57 10
07 06 10  ---          17 48 18  58.8 100.4 -2.2     -64.9   540      337   06 57 11

07 06 22  B1957+20     17 48 30  58.9 100.4 -2.2     -64.9     6      337   07 06 22
07 15 22  ---          17 57 31  60.8 102.2 -2.0     -64.1   540      372   07 06 23

07 16 07  J2001+2416   17 58 17  61.8  95.3 -2.1     -70.1    33      372   07 16 07
07 17 10  =1959+241    17 59 32  62.1  95.5 -2.1     -70.0    63      376   07 16 08

07 17 50  B1957+20     18 00 00  61.3 102.7 -2.0     -63.9    27      376   07 17 50
07 26 50  ---          18 09 02  63.2 104.8 -1.9     -62.9   540      411   07 17 51

07 27 02  B1957+20     18 09 14  63.2 104.8 -1.9     -62.9     6      411   07 27 02
07 36 02  ---          18 18 15  65.1 107.1 -1.7     -61.7   540      446   07 27 03

07 36 48  J2001+2416   18 19 01  66.2  99.1 -1.7     -68.8    32      446   07 36 48
07 37 31  =1959+241    18 19 56  66.4  99.2 -1.7     -68.7    43      449   07 36 49

07 38 11  B1957+20     18 20 24  65.5 107.7 -1.7     -61.3    26      449   07 38 11
07 47 11  ---          18 29 26  67.4 110.2 -1.5     -59.7   540      483   07 38 12

07 47 23  B1957+20     18 29 38  67.4 110.3 -1.5     -59.7     6      483   07 47 23
07 56 23  ---          18 38 39  69.2 113.3 -1.4     -57.8   540      518   07 47 24

07 58 09  J2023+3153   18 40 26  67.9  79.9 -1.7     -86.5    74      518   07 58 09
07 59 59  =2021+317    18 42 16  68.3  80.0 -1.7     -86.7   110      525   07 58 10


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


 ======== Setup file: sess214.P512
   Matching groups in /home/guest/rmc/SCHED/sched11.3u1/catalogs/freq.dat:
     v5090n
    ****** Only   81.50 of  128.00 MHz total bandwidth is within the IFs
           in the setup file before any FREQ or DOPPLER shifts.

   Setup group:    5         Station: VLBA_FD           Total bit rate:   512
   Format: VDIF              Bits per sample: 2         Sample rate: 32.000
   Number of channels:  8    DBE type: RDBE_DDC         Speedup factor:   1.00

   Disk used to record data.

   1st LO=   -500.00   -500.00   -500.00   -500.00   -500.00   -500.00   -500.00   -500.00
   Net SB=         U         U         U         U         U         U         U         U
   IF 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=         U         U         U         U         U         U         U         U
   IF    =        B         D         B         D         B         D         B         D 

   VLBA FE=     omit     90cm     omit     90cm
   VLBA Synth=  15.4     15.4     15.4

  The following frequency sets based on these setups were used.
     See the crd files for VLBA legacy system setups and pcal detection details.

   Frequency Set:   4  Setup file default.  Used with PCAL = off
   LO sum=   311.25  311.25  327.25  327.25  343.25  343.25  359.25  359.25
   BBC fr=   811.25  811.25  827.25  827.25  843.25  843.25  859.25  859.25
   Bandwd=    16.00   16.00   16.00   16.00   16.00   16.00   16.00   16.00
   VLBA legacy crd files using  4 channels based on RDBE channels:   3  4  5  6
   CRD fr=     827.25    827.25    843.25    843.25
   CRD bw=      16.00     16.00     16.00     16.00
    Matching frequency sets:   4   5   6   7   8   9  10  11  12  13

   Track assignments are: 
    track1=   1,  2,  3,  4,  5,  6,  7,  8
    barrel=roll_off 

 POSITIONS OF SOURCES USED IN RECORDING SCANS

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

 * B1957+20          19 57 24.939463   * 19 59 36.742900     20 00 16.516747       0.00
                     20 39 59.09698    * 20 48 14.51500      20 50 43.74620        0.00
                     From catalog imbedded in main SCHED input file.

 * J1932+1059        19 29 52.067955   * 19 32 13.949700     19 32 56.622555       0.00
                     10 53 04.66655    * 10 59 32.42000      11 01 33.15631        0.00
                     From catalog imbedded in main SCHED input file.

 * J1925+2106        19 23 49.792391   * 19 25 59.605354     19 26 38.879350       0.11
   1923+210          21 00 23.30482    * 21 06 26.16190      21 08 18.19476        0.10
   J1925+21          /home/guest/rmc/SCHED/sched11.3u1/catalogs/sources.vlba
                     rfc_2012b Petrov, 2012, unpublished 32646 observations

 * J2001+2416        19 59 45.946326   * 20 01 53.777968     20 02 32.438894       0.33
   1959+241          24 08 15.79899    * 24 16 39.99039      24 19 10.98964        0.53
                     /home/guest/rmc/SCHED/sched11.3u1/catalogs/sources.vlba
                     GSFC 2011B astro solution        57 Observations

 * J2023+3153        20 21 18.921660   * 20 23 19.017344     20 23 55.502105       0.12
   2021+317          31 43 19.28847    * 31 53 02.30598      31 55 53.59677        0.11
   J2023+31          /home/guest/rmc/SCHED/sched11.3u1/catalogs/sources.vlba
                     rfc_2012b Petrov, 2012, unpublished 1639 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
  B1957+20   sess214.P512          1 2 3 4                           2.100   152.238
  J1932+1059 sess214.P512          1 2 3 4                           0.032     1.993
  J1925+2106 sess214.P512          1 2 3 4                           0.025     1.650
  J2001+2416 sess214.P512          1 2 3 4                           0.077     5.382
  J2023+3153 sess214.P512          1 2 3 4                           0.031     2.019


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) 
   B1957+20           123.9
   J1932+1059         135.7
   J1925+2106         128.3
   J2001+2416         120.9
   J2023+3153         112.0

  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 

