[daip] Project BS077 (Sept.30,1999)
Leonia Kogan
lkogan at aoc.nrao.edu
Fri Jun 29 12:00:08 EDT 2001
Peter,
I join the Amy's suggestion.
We need a piece of your data to solve the problem.
Thanks
Leonia
----- Begin Included Message -----
>From pkortenk at blue.weeg.uiowa.edu Fri Jun 29 08:48 MDT 2001
X-WebMail-UserID: pkortenk
Date: Fri, 29 Jun 2001 09:48:46 -0500
Sender: Peter Kortenkamp <pkortenk at blue.weeg.uiowa.edu>
From: Peter Kortenkamp <pkortenk at blue.weeg.uiowa.edu>
To: Leonia Kogan <lkogan at zia.aoc.NRAO.EDU>
X-EXP32-SerialNo: 00002843
Subject: RE: [daip] Project BS077 (Sept.30,1999)
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Mailer: WebMail (Hydra) SMTP v3.61.08
X-Lines: 127
Status: RO
Leonia, here are answers to your questions.
>Check that all antennas were involved at the observation at the TIMERANG of
>PCCOR. Use POSSM with DOCALIB = -1 to see if the phases are smooth
>(for separate IFs) at the nine baselines (all antennas with REFANT=5) for the
>selected TIMERANG (selected at PCCOR).
-All antennas were involved and pulsecals were on. The baseline phases were
smooth within each IF (though quite steep).
>Repeat POSSM with DOCALIB=1 and GAINUSE=2 for the same TIMERANG.
>THe phases have to be allign for all IFs and all 9 baselines.
-This seems to have zeroed the slope of the phases (as I believe it should)
but leaves them misaligned between IFs in a very characteristic way: Every
other IF is aligned. The first, third, fifth and seventh IFs have phases
centered on one value while the second, fourth, sixth and eighth IFs have
phases centered on a different value. This occurs for all baselines though
the separation between even and odd IF phase values is not the same for all
baselines. Weird, huh? Does that make sense or should I attach a jpg.
>I hope that GAINVER=1 (used by you at CLCAL) corresponds to the virgin CL
>table with REAL=1, IMAG=0 for all entries. Does it?
-Yes.
>Please check the SN table 1 (the output of PCCOR) using PRTAB or SNPLT.
>All amplitudes should be equled to one. All antennas have to have entries.
-This appears to be the case.
>Send me the output of LISTR of the data with OPTIPE='scan"
-Here is LISTR output.
Scan Source Qual Calcode Sub Timerange FrqID
1 1156+295 :00000 N 1 0/13:00:23 - 0/13:14:59 1
2 3C273 :00000 Y 1 0/13:35:01 - 0/13:44:59 1
3 3C279 :00000 N 1 0/13:45:13 - 0/13:54:59 1
4 1156+295 :00000 N 1 0/14:55:01 - 0/15:04:59 1
5 3C273 :00000 Y 1 0/15:05:01 - 0/15:14:59 1
6 3C279 :00000 N 1 0/15:15:01 - 0/15:24:59 1
7 1156+295 :00000 N 1 0/16:25:01 - 0/16:34:59 1
8 3C273 :00000 Y 1 0/16:35:01 - 0/16:44:59 1
9 3C279 :00000 N 1 0/16:45:01 - 0/16:54:59 1
10 1156+295 :00000 N 1 0/17:55:01 - 0/18:04:59 1
11 3C279 :00000 N 1 0/18:05:01 - 0/18:14:59 1
12 3C273 :00000 Y 1 0/18:15:01 - 0/18:24:59 1
13 1611+343 :00000 N 1 0/19:25:01 - 0/19:34:59 1
14 3C279 :00000 N 1 0/19:35:02 - 0/19:44:58 1
15 3C273 :00000 Y 1 0/19:45:13 - 0/19:54:59 1
16 1611+343 :00000 N 1 0/20:55:01 - 0/21:04:59 1
17 3C279 :00000 N 1 0/21:05:01 - 0/21:14:59 1
18 3C273 :00000 Y 1 0/21:15:01 - 0/21:24:59 1
19 1611+343 :00000 N 1 0/22:25:01 - 0/22:34:58 1
20 3C279 :00000 N 1 0/22:35:12 - 0/22:44:59 1
21 3C273 :00000 Y 1 0/22:45:01 - 0/22:54:59 1
22 1611+343 :00000 N 1 0/23:57:09 - 1/00:05:00 1
23 3C279 :00000 N 1 1/00:05:01 - 1/00:09:59 1
24 3C273 :00000 Y 1 1/00:10:01 - 1/00:14:59 1
25 1611+343 :00000 N 1 1/00:52:11 - 1/00:59:58 1
Source summary
Velocity type = 'GEOCENTR' Definition = 'OPTICAL '
ID Source Qual Calcode RA(2000.0) Dec(2000.0) No. vis
1 1156+295 :00000 N 11:59:31.8339 29:14:43.827 117778
2 3C273 :00000 Y 12:29:06.6997 02:03:08.598 187547
3 3C279 :00000 N 12:56:11.1666 -05:47:21.525 171406
4 1611+343 :00000 N 16:13:41.0643 34:12:47.909 134317
ID Source Freq(GHz) Velocity(Km/s) Rest freq (GHz)
1 1156+295 8.4055 0.0000 8.4055
IF( 2) 8.4055 0.0000 8.4055
IF( 3) 8.4055 0.0000 8.4055
IF( 4) 8.4055 0.0000 8.4055
IF( 5) 8.4055 0.0000 8.4055
IF( 6) 8.4055 0.0000 8.4055
IF( 7) 8.4055 0.0000 8.4055
IF( 8) 8.4055 0.0000 8.4055
2 3C273 8.4055 0.0000 8.4055
IF( 2) 8.4055 0.0000 8.4055
IF( 3) 8.4055 0.0000 8.4055
IF( 4) 8.4055 0.0000 8.4055
IF( 5) 8.4055 0.0000 8.4055
IF( 6) 8.4055 0.0000 8.4055
IF( 7) 8.4055 0.0000 8.4055
IF( 8) 8.4055 0.0000 8.4055
3 3C279 8.4055 0.0000 4.9715
IF( 2) 8.4055 0.0000 4.9715
IF( 3) 8.4055 0.0000 4.9715
ID Source Freq(GHz) Velocity(Km/s) Rest freq (GHz)
IF( 4) 8.4055 0.0000 4.9715
IF( 5) 8.4055 0.0000 4.9715
IF( 6) 8.4055 0.0000 4.9715
IF( 7) 8.4055 0.0000 4.9715
IF( 8) 8.4055 0.0000 4.9715
4 1611+343 8.4055 0.0000 4.9715
IF( 2) 8.4055 0.0000 4.9715
IF( 3) 8.4055 0.0000 4.9715
IF( 4) 8.4055 0.0000 4.9715
IF( 5) 8.4055 0.0000 4.9715
IF( 6) 8.4055 0.0000 4.9715
IF( 7) 8.4055 0.0000 4.9715
IF( 8) 8.4055 0.0000 4.9715
Frequency Table summary
FQID IF# Freq(GHz) BW(kHz) Ch.Sep(kHz) Sideband
1 1 8.40549000 8000.0005 500.0000 1
2 8.40549000 8000.0005 500.0000 1
3 8.41349000 8000.0005 500.0000 1
4 8.41349000 8000.0005 500.0000 1
5 8.42149000 8000.0005 500.0000 1
6 8.42149000 8000.0005 500.0000 1
7 8.42949000 8000.0005 500.0000 1
8 8.42949000 8000.0005 500.0000 1
>Do you have one FREQID at your data?
-I have already separated the data into X,C and S bands.
Thanks,
Peter
----- End Included Message -----
More information about the Daip
mailing list