  COVER INFORMATION 

 Station:    MC_DBBC   (Code Md ) 
 Experiment: Network Monitoring Experiment
 Exp. Code:  N14M1   


Schedule Version:       2.00
Processed by SCHED version:  10.20  Release of about July 12, 2012

PI:       Gabriele Surcis

Address:  JIVE
          Postbus 2
          7990 AA Dwingeloo
          The Netherlands

Phone:    +31-521-596508
EMAIL:    surcis@jive.nl
Fax:
Phone during observation: +31-521-596508

Observing mode:

Notes:    5cm NME and ftp fringe test for session 1/2014
          (128 Mbps, L+R, 2-bit sampling, 2 MHz filters)
          Please send the disk pack by express to JIVE
 


COVER LETTER:


This is the schedule for the 5cm NME and ftp fringe-test on 01 March 2014
involving 9 antennas: Eb Wb1 Jb2 On25 Mc Nt Tr Sh Ys Sr (Td, Yd, Md).
The NME uses a standard setup with 128 Mbps.

The schedule consists of:
- long integrations on strong calibrators like 3C48, DA193 for ftp-fringe tests;
- linear polarization check using the polarized calibrator J2202+4216
  (3C48 as calibrator of J2202+4216);
- D-terms check using the calibrator DA193;
- and phase-referencing parts with a continuum source (J0552+3754) as target.

Three ftp-fringe tests are scheduled throughout the experiment:
12:39:58 (scan 2, 2 sec, 3C48)
13:49:58 (scan 22, 2 sec, DA193)
14:46:58 (scan 60, 2 sec, DA193)

Please make sure that the autoftp is set up correctly. Thanks!

Good luck with the session!

Gabriele

Schedule for MC_DBBC   (Code Md )                                   Page   2
               Network Monitoring Experiment
  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
----------------------------------------------------------------------------------------

 --- Sat   1 Mar 2014   Day  60 ---

 Next scan frequencies:  6662.52  6662.52  6662.52  6662.52  6666.52  6666.52  6666.52  6666.52
                         6670.52  6670.52  6670.52  6670.52  6674.52  6674.52  6674.52  6674.52
 Next BBC frequencies:    262.52   262.52   262.52   262.52   266.52   266.52   266.52   266.52
                          270.52   270.52   270.52   270.52   274.52   274.52   274.52   274.52
 Next scan bandwidths:      2.00     2.00     2.00     2.00     2.00     2.00     2.00     2.00
                            2.00     2.00     2.00     2.00     2.00     2.00     2.00     2.00

12 30 00  3C48         23 53 32  66.8 470.1 -1.7     -53.2     0        0   12 30 00
12 35 00  ---          23 58 32  67.6 471.7 -1.7     -52.4   300        5   12 30 01

12 36 00  3C48         23 59 33  67.8 472.1 -1.6     -52.2    57        5   12 36 00
12 41 00  ---          00 04 33  68.6 473.8 -1.6     -51.2   300       10   12 36 01

12 43 00  3C48         00 06 34  69.0 474.5 -1.5     -50.8   117       10   12 43 00
12 48 00  ---          00 11 35  69.8 476.5 -1.4     -49.7   300       15   12 43 01

12 54 00  J2202+4216   00 17 36  65.7 636.8  2.2      73.3   143       15   12 54 00
13 03 00  =BLLAC       00 26 37  64.1 637.9  2.4      72.8   540       23   12 54 01

13 04 00  J2202+4216   00 27 37  63.9 638.0  2.4      72.8    57       23   13 04 00
13 14 00  =BLLAC       00 37 39  62.2 639.3  2.6      72.2   600       33   13 04 01

13 23 35  DA193        00 47 15  34.7 785.7 -5.2     -57.8   377       33   13 23 35
13 28 35  ---          00 52 16  35.5 786.3 -5.1     -58.2   300       38   13 23 36

13 29 05  J0552+3754   00 52 46  35.1 788.8 -5.0     -57.4    23       38   13 29 05
13 30 05  =0548+378    00 53 47  35.3 788.9 -5.0     -57.5    60       39   13 29 06

13 30 05  DA193        00 53 47  35.8 786.5 -5.0     -58.4    -7       39   No stop 
13 31 05  ---          00 54 47  35.9 786.6 -5.0     -58.4    53       40   13 30 06

13 31 05  J0552+3754   00 54 47  35.4 789.0 -5.0     -57.6    -7       40   No stop 
13 32 05  =0548+378    00 55 47  35.6 789.2 -5.0     -57.6    53       41   13 31 06

13 32 05  DA193        00 55 47  36.1 786.8 -5.0     -58.5    -7       41   No stop 
13 33 05  ---          00 56 47  36.2 786.9 -5.0     -58.6    53       42   13 32 06

13 33 05  J0552+3754   00 56 47  35.8 789.3 -4.9     -57.7    -7       42   No stop 
13 34 05  =0548+378    00 57 47  35.9 789.4 -4.9     -57.8    53       43   13 33 06

13 34 05  DA193        00 57 47  36.4 787.0 -5.0     -58.7    -7       43   No stop 
13 35 05  ---          00 58 47  36.6 787.1 -5.0     -58.8    53       44   13 34 06

13 35 05  J0552+3754   00 58 47  36.1 789.6 -4.9     -57.9    -7       44   No stop 
13 36 05  =0548+378    00 59 48  36.3 789.7 -4.9     -57.9    53       45   13 35 06
Schedule for MC_DBBC   (Code Md )                                   Page   3
               Network Monitoring Experiment
  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
----------------------------------------------------------------------------------------

 --- Sat   1 Mar 2014   Day  60 ---

13 36 05  DA193        00 59 48  36.7 787.3 -4.9     -58.9    -7       45   No stop 
13 37 05  ---          01 00 48  36.9 787.4 -4.9     -59.0    53       45   13 36 06

13 37 05  J0552+3754   01 00 48  36.4 789.8 -4.9     -58.0    -7       45   No stop 
13 38 05  =0548+378    01 01 48  36.6 790.0 -4.9     -58.1    53       46   13 37 06

13 38 05  DA193        01 01 48  37.1 787.5 -4.9     -59.1    -7       46   No stop 
13 39 05  ---          01 02 48  37.2 787.6 -4.9     -59.1    53       47   13 38 06

13 39 05  J0552+3754   01 02 48  36.8 790.1 -4.8     -58.2    -7       47   No stop 
13 40 05  =0548+378    01 03 48  37.0 790.2 -4.8     -58.2    53       48   13 39 06

13 41 05  DA193        01 04 48  37.6 787.9 -4.9     -59.3    53       48   13 41 05
13 42 05  ---          01 05 49  37.7 788.0 -4.8     -59.4    60       49   13 41 06

13 42 05  J0552+3754   01 05 49  37.3 790.5 -4.8     -58.4    -7       49   No stop 
13 43 05  =0548+378    01 06 49  37.5 790.6 -4.8     -58.5    53       50   13 42 06

13 43 05  DA193        01 06 49  37.9 788.1 -4.8     -59.5    -7       50   No stop 
13 44 05  ---          01 07 49  38.1 788.3 -4.8     -59.6    53       51   13 43 06

13 45 05  DA193        01 08 49  38.2 788.4 -4.8     -59.6    57       51   13 45 05
13 50 05  ---          01 13 50  39.1 789.0 -4.7     -60.1   300       56   13 45 06

13 52 05  DA193        01 15 50  39.4 789.2 -4.7     -60.2   117       56   13 52 05
13 53 05  ---          01 16 50  39.6 789.4 -4.7     -60.3    60       57   13 52 06

13 53 05  J0552+3754   01 16 50  39.2 791.9 -4.6     -59.2    -7       57   No stop 
13 54 05  =0548+378    01 17 50  39.3 792.0 -4.6     -59.3    53       58   13 53 06

13 54 05  DA193        01 17 50  39.7 789.5 -4.6     -60.4    -7       58   No stop 
13 55 05  ---          01 18 51  39.9 789.6 -4.6     -60.5    53       59   13 54 06

13 55 05  J0552+3754   01 18 51  39.5 792.2 -4.6     -59.3    -7       59   No stop 
13 56 05  =0548+378    01 19 51  39.7 792.3 -4.6     -59.4    53       60   13 55 06

13 56 05  DA193        01 19 51  40.1 789.7 -4.6     -60.6    -7       60   No stop 
13 57 05  ---          01 20 51  40.2 789.9 -4.6     -60.6    53       61   13 56 06

13 57 05  J0552+3754   01 20 51  39.8 792.4 -4.5     -59.5    -7       61   No stop 
13 58 05  =0548+378    01 21 51  40.0 792.6 -4.5     -59.6    53       62   13 57 06

13 58 05  DA193        01 21 51  40.4 790.0 -4.6     -60.7    -7       62   No stop 
13 59 05  ---          01 22 51  40.6 790.1 -4.6     -60.8    53       63   13 58 06
Schedule for MC_DBBC   (Code Md )                                   Page   4
               Network Monitoring Experiment
  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
----------------------------------------------------------------------------------------

 --- Sat   1 Mar 2014   Day  60 ---

13 59 05  J0552+3754   01 22 51  40.2 792.7 -4.5     -59.6    -7       63   No stop 
14 00 05  =0548+378    01 23 51  40.3 792.8 -4.5     -59.7    53       64   13 59 06

14 00 05  DA193        01 23 51  40.7 790.2 -4.5     -60.9    -7       64   No stop 
14 01 05  ---          01 24 52  40.9 790.4 -4.5     -61.0    53       65   14 00 06

14 01 05  J0552+3754   01 24 52  40.5 793.0 -4.5     -59.8    -7       65   No stop 
14 02 05  =0548+378    01 25 52  40.7 793.1 -4.5     -59.8    53       66   14 01 06

14 02 05  DA193        01 25 52  41.1 790.5 -4.5     -61.0    -7       66   No stop 
14 03 05  ---          01 26 52  41.2 790.6 -4.5     -61.1    53       67   14 02 06

14 03 05  J0552+3754   01 26 52  40.9 793.2 -4.4     -59.9    -7       67   No stop 
14 04 05  =0548+378    01 27 52  41.0 793.3 -4.4     -60.0    53       68   14 03 06

14 05 05  DA193        01 28 52  41.6 790.9 -4.5     -61.3    53       68   14 05 05
14 06 05  ---          01 29 52  41.8 791.0 -4.4     -61.3    60       69   14 05 06

14 06 05  J0552+3754   01 29 52  41.4 793.6 -4.4     -60.1    -7       69   No stop 
14 07 05  =0548+378    01 30 53  41.5 793.7 -4.4     -60.2    53       70   14 06 06

14 07 05  DA193        01 30 53  41.9 791.1 -4.4     -61.4    -7       70   No stop 
14 08 05  ---          01 31 53  42.1 791.2 -4.4     -61.5    53       71   14 07 06

14 08 05  J0552+3754   01 31 53  41.7 793.9 -4.4     -60.2    -7       71   No stop 
14 09 05  =0548+378    01 32 53  41.9 794.0 -4.3     -60.3    53       72   14 08 06

14 09 05  DA193        01 32 53  42.3 791.3 -4.4     -61.6    -7       72   No stop 
14 10 05  ---          01 33 53  42.4 791.5 -4.4     -61.7    53       73   14 09 06

14 10 05  J0552+3754   01 33 53  42.1 794.1 -4.3     -60.4    -7       73   No stop 
14 11 05  =0548+378    01 34 53  42.2 794.3 -4.3     -60.4    53       74   14 10 06

14 11 05  DA193        01 34 53  42.6 791.6 -4.4     -61.7    -7       74   No stop 
14 12 05  ---          01 35 53  42.8 791.7 -4.3     -61.8    53       75   14 11 06

14 12 05  J0552+3754   01 35 53  42.4 794.4 -4.3     -60.5    -8       75   No stop 
14 13 05  =0548+378    01 36 54  42.6 794.5 -4.3     -60.6    52       75   14 12 06

14 13 05  DA193        01 36 54  42.9 791.8 -4.3     -61.9    -7       75   No stop 
14 14 05  ---          01 37 54  43.1 792.0 -4.3     -62.0    53       76   14 13 06

14 14 05  J0552+3754   01 37 54  42.7 794.7 -4.3     -60.6    -8       76   No stop 
14 15 05  =0548+378    01 38 54  42.9 794.8 -4.2     -60.7    52       77   14 14 06
Schedule for MC_DBBC   (Code Md )                                   Page   5
               Network Monitoring Experiment
  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
----------------------------------------------------------------------------------------

 --- Sat   1 Mar 2014   Day  60 ---

14 15 05  DA193        01 38 54  43.3 792.1 -4.3     -62.0    -8       77   No stop 
14 16 05  ---          01 39 54  43.4 792.2 -4.3     -62.1    52       78   14 15 06

14 16 05  J0552+3754   01 39 54  43.1 794.9 -4.2     -60.8    -8       78   No stop 
14 17 05  =0548+378    01 40 54  43.3 795.1 -4.2     -60.8    52       79   14 16 06

14 18 05  DA193        01 41 54  43.8 792.5 -4.2     -62.3    52       79   14 18 05
14 19 05  ---          01 42 55  44.0 792.6 -4.2     -62.3    60       80   14 18 06

14 19 05  J0552+3754   01 42 55  43.6 795.3 -4.2     -61.0    -8       80   No stop 
14 20 05  =0548+378    01 43 55  43.8 795.5 -4.2     -61.0    52       81   14 19 06

14 20 05  DA193        01 43 55  44.1 792.7 -4.2     -62.4    -8       81   No stop 
14 21 05  ---          01 44 55  44.3 792.8 -4.2     -62.5    52       82   14 20 06

14 21 05  J0552+3754   01 44 55  44.0 795.6 -4.1     -61.1    -8       82   No stop 
14 22 05  =0548+378    01 45 55  44.1 795.7 -4.1     -61.1    52       83   14 21 06

14 22 05  DA193        01 45 55  44.5 793.0 -4.2     -62.6    -8       83   No stop 
14 23 05  ---          01 46 55  44.6 793.1 -4.2     -62.6    52       84   14 22 06

14 23 05  J0552+3754   01 46 55  44.3 795.9 -4.1     -61.2    -8       84   No stop 
14 24 05  =0548+378    01 47 55  44.5 796.0 -4.1     -61.3    52       85   14 23 06

14 24 05  DA193        01 47 55  44.8 793.2 -4.1     -62.7    -8       85   No stop 
14 25 05  ---          01 48 56  45.0 793.3 -4.1     -62.8    52       86   14 24 06

14 25 05  J0552+3754   01 48 56  44.6 796.1 -4.1     -61.3    -8       86   No stop 
14 26 05  =0548+378    01 49 56  44.8 796.3 -4.1     -61.4    52       87   14 25 06

14 26 05  DA193        01 49 56  45.2 793.5 -4.1     -62.9    -8       87   No stop 
14 27 05  ---          01 50 56  45.3 793.6 -4.1     -62.9    52       88   14 26 06

14 27 05  J0552+3754   01 50 56  45.0 796.4 -4.0     -61.4    -8       88   No stop 
14 28 05  =0548+378    01 51 56  45.2 796.5 -4.0     -61.5    52       89   14 27 06

14 28 05  DA193        01 51 56  45.5 793.7 -4.1     -63.0    -8       89   No stop 
14 29 05  ---          01 52 56  45.7 793.8 -4.1     -63.1    52       90   14 28 06

14 29 05  J0552+3754   01 52 56  45.3 796.7 -4.0     -61.6    -8       90   No stop 
14 30 05  =0548+378    01 53 56  45.5 796.8 -4.0     -61.6    52       91   14 29 06

14 31 05  DA193        01 54 57  46.0 794.1 -4.0     -63.2    52       91   14 31 05
14 41 05  ---          02 04 58  47.7 795.3 -3.9     -63.9   600      101   14 31 06
Schedule for MC_DBBC   (Code Md )                                   Page   6
               Network Monitoring Experiment
  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
----------------------------------------------------------------------------------------

 --- Sat   1 Mar 2014   Day  60 ---

14 42 05  DA193        02 05 58  47.9 795.5 -3.8     -64.0    57      101   14 42 05
14 49 05  ---          02 13 00  49.1 796.3 -3.7     -64.4   420      107   14 42 06

14 51 05  DA193        02 15 00  49.5 796.6 -3.7     -64.6   117      107   14 51 05
14 54 05  ---          02 18 00  50.0 797.0 -3.6     -64.7   180      110   14 51 06

15 05 05  3C48         02 29 02  75.1 585.2  0.8      37.2   368      110   15 05 05
15 10 05  ---          02 34 03  74.4 588.3  0.9      39.6   300      115   15 05 06

15 10 35  3C48         02 34 33  74.3 588.6  0.9      39.8    27      115   15 10 35
15 19 35  ---          02 43 35  73.1 593.7  1.1      43.4   540      124   15 10 36

15 20 05  3C48         02 44 05  73.0 593.9  1.1      43.6    27      124   15 20 05
15 29 05  ---          02 53 06  71.7 598.3  1.2      46.5   540      133   15 20 06


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


 ======== Setup file: sess114.M128
 --- 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:   12         Station: MC_DBBC           Total bit rate:  128
   Format: MARK5B            Bits per sample: 2         Sample rate:  4.000
   Number of channels: 16    DBE type:                  Speedup factor:   1.00

   Disk used to record data.

   1st LO=   6400.00   6400.00   6400.00   6400.00   6400.00   6400.00   6400.00   6400.00
             6400.00   6400.00   6400.00   6400.00   6400.00   6400.00   6400.00   6400.00
   Net SB=         L         L         U         U         L         L         U         U
                   L         L         U         U         L         L         U         U
   Pol.  =      RCP       LCP       RCP       LCP       RCP       LCP       RCP       LCP 
                RCP       LCP       RCP       LCP       RCP       LCP       RCP       LCP 
   BBC   =         1         5         1         5         2         6         2         6
                   3         7         3         7         4         8         4         8
   BBC SB=         L         L         U         U         L         L         U         U
                   L         L         U         U         L         L         U         U
   IF    =        A1        B1        A1        B1        A1        B1        A1        B1
                  A1        B1        A1        B1        A1        B1        A1        B1

  The following frequency sets based on these setups were used.

   Frequency Set:  10  Setup file default.
   LO sum=   6662.52  6662.52  6662.52  6662.52  6666.52  6666.52  6666.52  6666.52
             6670.52  6670.52  6670.52  6670.52  6674.52  6674.52  6674.52  6674.52
   BBC fr=    262.52   262.52   262.52   262.52   266.52   266.52   266.52   266.52
              270.52   270.52   270.52   270.52   274.52   274.52   274.52   274.52
   Bandwd=      2.00     2.00     2.00     2.00     2.00     2.00     2.00     2.00
                2.00     2.00     2.00     2.00     2.00     2.00     2.00     2.00
    Matching frequency sets:  10  12

   Track assignments are: 
    track1=   2,  4,  6,  8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32
    barrel=roll_off 
 SOURCES USED IN RECORDING SCANS --                         Network Monitoring Experiment
     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).
     Scan hours are for recording scans only. 
     Baseline hours are only counted for scans above horizon at both ends.

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

   J0137+3309        01 34 49.826374   * 01 37 41.299440     01 38 29.923171       0.52
   0134+329          32 54 20.25881    * 33 09 35.13299      33 13 55.11422        0.50
 * 3C48              /aps3/sched10.2/catalogs/sources.vlba
   J0137+33          rfc_2012b Petrov, 2012, unpublished 140 observations
                        0.633 scan and     48.050 baseline hours in setup: sess114.M128
                     Frequency sets (dups not shown):   1  2  3  4  5  6  7  8  9 10 11 13

 * J0552+3754        05 48 52.231755   * 05 52 17.936920     05 53 17.614550       0.13
   0548+378          37 53 44.15048    * 37 54 25.28236      37 54 31.93218        0.11
                     /aps3/sched10.2/catalogs/sources.vlba
                     rfc_2012b Petrov, 2012, unpublished 889 observations
                        0.417 scan and     25.356 baseline hours in setup: sess114.M128
                     Frequency sets (dups not shown):   1  2  3  4  5  6  7  8  9 10 11 13

   J0555+3948        05 52 01.407174   * 05 55 30.805616     05 56 31.573650       0.13
   0552+398          39 48 21.94578    * 39 48 49.16493      39 48 52.33276        0.10
 * DA193             /aps3/sched10.2/catalogs/sources.vlba
   J0555+39          rfc_2012b Petrov, 2012, unpublished 376994 observations
                        0.917 scan and     73.041 baseline hours in setup: sess114.M128
                     Frequency sets (dups not shown):   1  2  3  4  5  6  7  8  9 10 11 13

 * J2202+4216        22 00 39.362504   * 22 02 43.291371     22 03 17.606818       0.14
   BLLAC             42 02 08.59073    * 42 16 39.97987      42 20 47.37812        0.10
   2200+420          /aps3/sched10.2/catalogs/sources.vlba
   J2202+42          rfc_2012b Petrov, 2012, unpublished 59418 observations
   VR422201             0.317 scan and     20.789 baseline hours in setup: sess114.M128
                     Frequency sets (dups not shown):   1  2  3  4  5  6  7  8 10 11 13



  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) 
   3C48                57.1
   J0552+3754         107.1
   DA193              107.6
   J2202+4216          50.9

  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 

