Date - 2001.03.08 Tester - S.T. Myers (AOC) Platform - Linux (kernow) Note: bugs are denoted by lines with prefix: >>>BUG: and queries are denoted by lines with prefix: >>>QUERY: while comments are prefixed by: >>>COMMENT: Some enhancement requests are given after >>>REQUEST: ------------------------------------------------------------------------------- GOAL: Test Athol's PCAL emulation on different test data 1. Date - 2001.03.08 Version - Weekly (1.5 build 242) Data - /home/sandrock/smyers/VLA/Pol/20010204A/20010204AC.UVF This was a clean dataset, and so at first disable the flagging. First need to work out what the number of AN8 is to use as refant! m:=fitstoms(fitsfile='20010204AC.UVF', msfile='20010204AC.ms'); Get Severe Error (in reading SN table) Keyword value has wrong data type. FITS card 84: ORIGIN = 0 Keyword value has wrong data type. FITS card 84: ORIGIN = 0 m.summary(); MeasurementSet Name: 20010204AC.ms MS Version 2 Observer: AC524 Project: Observation: VLA(29 antennas) Fields: 8 Name: 1159+292 RA: 11:59:31.83 Dec: +29.14.43.83 (J2000 ) Name: 0713+438 RA: 07:13:38.16 Dec: +43.49.17.20 (J2000 ) Name: 0927+390 RA: 09:27:03.01 Dec: +39.02.20.85 (J2000 ) Name: 0854+201 RA: 08:54:48.87 Dec: +20.06.30.64 (J2000 ) Name: 1310+323 RA: 13:10:28.66 Dec: +32.20.43.78 (J2000 ) Name: 1331+305 RA: 13:31:08.29 Dec: +30.30.32.96 (J2000 ) Name: 1229+020 RA: 12:29:06.70 Dec: +02.03.08.60 (J2000 ) Name: 1256-057 RA: 12:56:11.17 Dec: -05.47.21.52 (J2000 ) Data records: 116930 Total integration time = 8006.67 seconds Observed from 04-Feb-2001/08:29:20 to 04-Feb-2001/10:42:47 Data descriptions: 2 (2 spectral windows and 1 polarization setups) ID Ref.Freq #Chans Resolution TotalBW Correlations 1 4885.1 MHz 1 50000 kHz 50000 kHz RR RL LR LL 2 4835.1 MHz 1 50000 kHz 50000 kHz RR RL LR LL Tables(rows): (-1 = table absent) MAIN(116930) ANTENNA(29) DATA_DESCRIPTION(2) DOPPLER(-1) FEED(28) FIELD(8) FLAG_CMD(0) FREQ_OFFSET(-1) HISTORY(527) OBSERVATION(1) POINTING(348) POLARIZATION(1) PROCESSOR(0) SOURCE(-1) SPECTRAL_WINDOW(2) STATE(0) SYSCAL(-1) WEATHER(-1) Note: 1331+305 is FLD=6 flux & angle calibrator 1159+292 is FLD=1 D-term calibrator m.done() Invoke msplot from GUI ToolManager On DataSelect pulldown Antenna from MS Claims AN8 which is at N8 is #8. Claims all antennas are their correct VLA number. Is this right??? >>>BUG: As you move cursor over the antenna plot, the plot window flashes as it tries to resize to rewrite the text in the id window. This is very annoying! Use Catalog tool to look at ANTENNA table - indeed the numbers seem to match rows, probably because this FITS was generated in AIPS. 2. Script - /home/sandrock/smyers/Testing/Mar01/08Mar01/2001-03-08-myers.g Set the flux density scale using reference calibrators Flux density for 0713+438 (spw=1) is: 1.593 +/- 0.001 Jy Flux density for 0713+438 (spw=2) is: 1.603 +/- 0.001 Jy Flux density for 0854+201 (spw=1) is: 1.885 +/- 0.001 Jy Flux density for 0854+201 (spw=2) is: 1.878 +/- 0.001 Jy Flux density for 0927+390 (spw=1) is: 10.541 +/- 0.006 Jy Flux density for 0927+390 (spw=2) is: 10.504 +/- 0.006 Jy Flux density for 1229+020 (spw=1) is: 31.274 +/- 0.020 Jy Flux density for 1229+020 (spw=2) is: 31.336 +/- 0.021 Jy Flux density for 1256-057 (spw=1) is: 20.332 +/- 0.009 Jy Flux density for 1256-057 (spw=2) is: 20.301 +/- 0.008 Jy Flux density for 1310+323 (spw=1) is: 1.768 +/- 0.000 Jy Flux density for 1310+323 (spw=2) is: 1.765 +/- 0.001 Jy >>>BUG: Crashed with error LocalExec::SetStatus: abnormal child termination for /home/cluster/aips++/weekly/linux_gnu/bin/calibrater Server 'calibrater#2' has failed unexpectedly! You will need to create the relevant tool again. If that causes unexpected behavior, please restart AIPS++ Please submit a bug-report using bug() if you can reproduce the problem. >>>Have to CNTL-C await terminated (file "servers.g", line 1042): await theagent->.run_result theagent->.error theagent->.fail 3. Try again - restart aips++ to be sure... Still bombs: - include '2001-03-08-myers.g' Data loaded into test.08mar01.ms Gain calibration complete Flux density calibration determined from 1331+305 LocalExec::SetStatus: abnormal child termination for /home/cluster/aips++/weekly/linux_gnu/bin/calibrater Server 'calibrater' has failed unexpectedly! You will need to create the relevant tool again. If that causes unexpected behavior, please restart AIPS++ Please submit a bug-report using bug() if you can reproduce the problem. Gain and Flux density calibration applied IF1 Polarization model computed for 1159+292 LocalExec::SetStatus: abnormal child termination for /home/cluster/aips++/weekly/linux_gnu/bin/calibrater Server 'calibrater#2' has failed unexpectedly! You will need to create the relevant tool again. If that causes unexpected behavior, please restart AIPS++ Please submit a bug-report using bug() if you can reproduce the problem. CNTL-C await terminated (file "servers.g", line 1042): await theagent->.run_result theagent->.error theagent->.fail 4. Try Version - Stable (1.5 build 200) Seems to be working 0713+438 IF1 I= 1.557 P= 0.003 chi= -89.07 0713+438 IF2 I= 1.571 P= 0.003 chi= 260.23 0854+201 IF1 I= 1.889 P= 0.061 chi= -76.00 0854+201 IF2 I= 1.877 P= 0.061 chi= 281.68 0927+390 IF1 I= 10.321 P= 0.169 chi= 127.71 0927+390 IF2 I= 10.334 P= 0.176 chi= 125.11 1159+292 IF1 I= 1.151 P= 0.025 chi= 203.15 1159+292 IF2 I= 1.134 P= 0.025 chi= 210.75 1229+020 IF1 I= 28.017 P= 1.282 chi= -27.91 1229+020 IF2 I= 27.880 P= 1.281 chi= -29.97 1256-057 IF1 I= 19.078 P= 1.110 chi= 124.67 1256-057 IF2 I= 19.347 P= 1.118 chi= 127.14 1310+323 IF1 I= 1.553 P= 0.041 chi= -36.32 1310+323 IF2 I= 1.638 P= 0.043 chi= -41.79 1331+305 IF1 I= 7.459 P= 0.845 chi= 66.00 1331+305 IF2 I= 7.509 P= 0.846 chi= 66.00 What happened to 0854+201? Note 0713+438 is almost unpolarized. The others seem pretty good. I got from AIPS (IF avg): I Peak mJy P Peak mJy Pol % RLPD deg -------------- -------------- ----------- -------------- 0713+438 1595.94 ± 0.10 2.95 ± 0.22 0.18 ± 0.01 -84.04 ± 11.13 0854+201 1878.61 ± 9.43 60.63 ± 0.15 3.23 ± 0.01 -76.64 ± 1.47 0927+390 10488.21 ± 51.08 171.71 ± 3.95 1.64 ± 0.05 125.85 ± 2.52 1159+292 1157.02 ± 3.23 26.26 ± 0.26 2.27 ± 0.02 -154.32 ± 0.12 1229+020 31351.08 ± 37.49 1428.72 ± 5.39 4.56 ± 0.01 -27.60 ± 1.25 1256-057 20228.92 ± 93.15 1186.62 ± 9.71 5.87 ± 0.02 125.97 ± 0.96 1310+323 1759.86 ± 3.83 47.08 ± 0.11 2.68 ± 0.00 -40.63 ± 1.33 1331+305 7444.98 ± 0.50 846.41 ± 1.16 11.37 ± 0.02 66.00 ± 0.00 Looks like the angle for IF 2 is wonky on these two sources. Seems to be a wrap problem in the calculated phase (ie. these are really the same phase but 360 deg apart). Try to fix this in the script. The peak I flux on 3C273 (1229+020) and 3C279 (1256-057) seem a little low in the aips++ data (especially cf. the setjy results above). This will need some investigation. 5. Correct script for angle irregularities 0713+438 IF1 I= 1.557 P= 0.003 chi= -89.07 0713+438 IF2 I= 1.571 P= 0.003 chi= -99.77 0854+201 IF1 I= 1.889 P= 0.061 chi= -76.00 0854+201 IF2 I= 1.877 P= 0.061 chi= -78.32 0927+390 IF1 I= 10.321 P= 0.169 chi= 127.71 0927+390 IF2 I= 10.334 P= 0.176 chi= 125.11 1159+292 IF1 I= 1.151 P= 0.025 chi= -156.85 1159+292 IF2 I= 1.134 P= 0.025 chi= -149.25 1229+020 IF1 I= 28.017 P= 1.282 chi= -27.91 1229+020 IF2 I= 27.880 P= 1.281 chi= -29.97 1256-057 IF1 I= 19.078 P= 1.110 chi= 124.67 1256-057 IF2 I= 19.347 P= 1.118 chi= 127.14 1310+323 IF1 I= 1.553 P= 0.041 chi= -36.32 1310+323 IF2 I= 1.638 P= 0.043 chi= -41.79 1331+305 IF1 I= 7.459 P= 0.845 chi= 66.00 1331+305 IF2 I= 7.509 P= 0.846 chi= 66.00 Looks good - things now agree! ------------------------------------------------------------------------------- See the script 2001-03-08-myers.g (in the Test Logs area) for what I am doing. Looks like I am getting close to a "general" automatic script for processing the polarization calibration data.