[daip] FILLM question

[Eric Greisen]

Hanno Spreeuw writes:
 > Hello,
 > 
 > I downloaded 4 files from the VLA archive, from project AP111 (all on 
 > March 29th 1986).
 > I got this message from the FILLM log:
 > "ANTENNAS APPEAR TO HAVE MOVED" at the start of the second file.
 > Can you help?

     perhaps they did in fact - say an antenna movement to a new
station during the switch between arrays.  Or maybe this project was
in multiple arrays.

     I suggest that you run PRTAN on the 2 output files and compare
the antenna locations.  It is true that for a while I had too tight a
test for real movement (compared to the subtle changes the ModComps
put in the antenna positions for earth tides, polar wander, etc.) and
so you may decide that they really have not moved.  DBCON of the 2
multi-source data sets will then put them back together.

Eric Greisen

 > 
 > Thanks,
 > Hanno.
 > 
 > This is the head of the FILLM log:
 > 
 > FILLM4: Task FILLM  (release of 31DEC07) begins
 > FILLM4: ******************************************************
 > FILLM4: **   Times written by FILLM are now centered in     **
 > FILLM4: **   the integration, before they were at the end   **
 > FILLM4: ******************************************************
 > FILLM4: Shadow flag limit =  2.500E+01 meters.
 > FILLM4: Opacity correction in CL table weighted average of weather and
 > FILLM4:    season.  Weight for weather = 0.50
 > FILLM4: Gain curve correction in CL table read from file,
 > FILLM4:    with variation as function of antenna and band.
 > FILLM4: Opening DA01:86MAR29_1
 > FILLM4:
 > FILLM4: *** ATTENTION - default: loading subarray 1 ***
 > FILLM4:
 > FILLM4: tape file #  1, start date/time = 19860329/08:51:10
 > FILLM4: MCINI: Processing Correlator Code '1A  ' with  11 antennas.
 > FILLM4: MCINI - Mode 1A
 > FILLM4: Program = AP111 ; Tape revision number =   12.
 > FILLM4: Create 86MAR29_111 .CH 0  .   1 (UV)  on disk  1  cno    1
 > FILLM4: Ref. date = 19860329 A-C =  0.321400 B-D =  0.321400 GHz
 > FILLM4: Create 86MAR29_111 .LINE  .   1 (UV)  on disk  1  cno    2
 > FILLM4: Ref. date = 19860329 A-C =  0.321400 B-D =  0.321400 GHz
 > FILLM4: FLMFQ: FQ entry tolerance =    3.645E+01
 > FILLM4: Found PSSGR           :    1  3.125 MHz at IAT   0/ 08:51:05.0
 > FILLM4: Zenith opacity set to 0.000
 > FILLM4: Trying to access VLA antenna gains file...
 > FILLM4: ZTXOP2: using translated file name =
 > FILLM4: ZTXOP2: /home/sw-astro/aips07/TEXT/IONS/VLA.GAINS
 > FILLM4: MCINI: Processing Correlator Code '1A  ' with  11 antennas.
 > FILLM4: MCINI - Mode 1A
 > FILLM4: Ref. date = 19860329 A-C =  0.332600 B-D =  0.332600 GHz
 > FILLM4: Appending new data to: 86MAR29_111 .CH 0  .  1 disk  1
 > FILLM4: Ref. date = 19860329 A-C =  0.332600 B-D =  0.332600 GHz
 > FILLM4: Appending new data to: 86MAR29_111 .LINE  .  1 disk  1
 > FILLM4: Found PSSGR           :    0  3.125 MHz at IAT   0/ 08:55:55.0
 > FILLM4: Found PSCYG           :    0  3.125 MHz at IAT   0/ 09:03:15.0
 > FILLM4: Found CYGA            :    0  3.125 MHz at IAT   0/ 09:05:25.0
 > FILLM4: Found SGRA            :    0  3.125 MHz at IAT   0/ 09:27:15.0
 > FILLM4: Found SGRA            :    0  3.125 MHz at IAT   0/ 09:55:55.0
 > FILLM4: Found SGRA            :    0  3.125 MHz at IAT   0/ 10:30:15.0
 > FILLM4: Opening DA01:86MAR29_2
 > FILLM4: ANTENNAS APPEAR TO HAVE MOVED
 > FILLM4: MCINI: Processing Correlator Code '1A  ' with  11 antennas.
 > FILLM4: MCINI - Mode 1A
 > FILLM4: Ref. date = 19860329 A-C =  0.332600 B-D =  0.332600 GHz
 > FILLM4: Appending new data to: 86MAR29_111 .CH 0  .  1 disk  1
 > FILLM4: Ref. date = 19860329 A-C =  0.332600 B-D =  0.332600 GHz
 > FILLM4: Appending new data to: 86MAR29_111 .LINE  .  1 disk  1
 > FILLM4: Found 1938-15         :    0  3.125 MHz at IAT   0/ 11:06:55.0
 > FILLM4: ANTENNAS APPEAR TO HAVE MOVED
 > FILLM4: MCINI: Processing Correlator Code '1A  ' with  11 antennas.
 > FILLM4: MCINI - Mode 1A
 > FILLM4: Ref. date = 19860329 A-C =  0.332600 B-D =  0.332600 GHz
 > 
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