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Michael Bietenholz <michael@hartrao.ac.za> </td>
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• Michael Bietenholz <michael@hartrao.ac.za><br>
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Awaiting Agent
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Unsupported OS
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Here is the PRTUV DPARM(6)=1 output - its the ANT1 ANT2 SUBAR form The two datasets are 8IF,6CH MULTI's (ie. there is an SU table) although they each have only a single source. Both cla...
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<div class="plaintext-email">Here is the PRTUV DPARM(6)=1 output - its the ANT1 ANT2 SUBAR form<br />
<br />
The two datasets are 8IF,6CH MULTI's (ie. there is an SU table) although<br />
they each have only a single source. Both claim to be in TB order.<br />
Quick summary: if I VBGLU them in S-band,C-band order output is<br />
garbled, if I do it in C-band,S-band order it's ok. I suspect it has to<br />
do with the order of random pars, because CORR-I takes on the values<br />
that ANTENNA1 should have when the C-band data gets garbled.<br />
<br />
C-band Rand axes: UU-L-SIN VV-L-SIN WW-L-SIN TIME1 SUBARRAY INTTIM <br />
GATEID ANTENNA1 ANTENNA2 CORR-ID SOURCE FREQSEL<br />
S-band Rand axes: UU-L-SIN VV-L-SIN WW-L-SIN TIME1 SUBARRAY INTTIM <br />
GATEID CORR-ID ANTENNA1 ANTENNA2 SOURCE FREQSEL<br />
<br />
S-band has been run through MATCH (to match C-band). I'm not sure why the<br />
random params<br />
are in different order, the datasets I got from the correlator were that way<br />
(they are both Australian LBA, taken about one month apart)<br />
<br />
Ok - here's more detail:<br />
<br />
I first VBGLUed the two data sets in increasing freq order, ie.<br />
INNA = S-band (post-MATCH), IN2NA = C-band. IN3N, IN4N<br />
etc were blank and FQCENTER = -1. That's when<br />
antenna # seemed to get messed up. C-band gets moved to<br />
day 30, IF 9-16<br />
<br />
I then tried reversing the order in VBGLU, so INNA was Cband<br />
and IN2NA was Sband. In this case the output seems okay,<br />
and C-band is still day 30, IF 9-16<br />
<br />
Here's the PRTUV output. I'm happy to ftp the datasets if you want them,<br />
they are ~1 GB total<br />
<br />
PRTUV output:<br />
<br />
dailyali PRTUV(31DEC21) 1977 21-AUG-2021 13:55:06 Page 1<br />
File = SN96CR C E16.C16SPM. 1 Vol = 1 Userid = 1977 Channels = <br />
1 to 1<br />
Source= SN1996CR RA = 14 13 10.01 DEC = -65 20 44.6 IF = 1<br />
Freq= 4.786874865 GHz Ncor= 4 No. vis= 267368 Sort order= TB <br />
[Header freq 4.7840000E+09]]<br />
Weights have been multiplied by 1.0E+01<br />
<br />
SN1996CR<br />
Vis # IAT Base Suba UU-L-SIN VV-L-SIN <br />
WW-L-SIN INTTIM GATEID CORR-I SOURCE FREQSE<br />
<br />
1 0/09:08:36.000 1- 6 1 -1.0504656E+06 9.3531162E+05<br />
-1.1751355E+06 2.0000000E+00 0 1 1 1<br />
2 0/09:08:37.999 1- 6 1 -1.0504129E+06 9.3545112E+05<br />
-1.1750716E+06 2.0000000E+00 0 1 1 1<br />
3 0/09:08:40.000 1- 6 1 -1.0503600E+06 9.3559062E+05<br />
-1.1750078E+06 2.0000000E+00 0 1 1 1<br />
4 0/09:08:42.002 1- 6 1 -1.0503071E+06 9.3573025E+05<br />
-1.1749439E+06 2.0000000E+00 0 1 1 1<br />
5 0/09:08:44.000 1- 6 1 -1.0502541E+06 9.3586975E+05<br />
-1.1748801E+06 2.0000000E+00 0 1 1 1<br />
6 0/09:08:45.998 1- 2 1 -1.2566189E+07 1.9528340E+07 <br />
6.3213645E+06 2.0000000E+00 0 1 1 1<br />
7 0/09:08:45.998 1- 4 1 -1.3321066E+07 5.5527980E+06<br />
-1.6972950E+07 2.0000000E+00 0 1 1 1<br />
8 0/09:08:45.998 1- 6 1 -1.0502011E+06 9.3600925E+05<br />
-1.1748162E+06 2.0000000E+00 0 1 1 1<br />
9 0/09:08:45.998 2- 4 1 -7.5487731E+05 -1.3975543E+07<br />
-2.3294314E+07 2.0000000E+00 0 1 1 1<br />
10 0/09:08:45.998 2- 6 1 1.1515988E+07 -1.8592330E+07<br />
-7.4961810E+06 2.0000000E+00 0 1 1 1<br />
11 0/09:08:45.998 4- 6 1 1.2270865E+07 -4.6167885E+06 <br />
1.5798134E+07 2.0000000E+00 0 1 1 1<br />
12 0/09:08:47.999 1- 2 1 -1.2563216E+07 1.9530006E+07 <br />
6.3221290E+06 2.0000000E+00 0 1 1 1<br />
13 0/09:08:47.999 1- 4 1 -1.3321359E+07 5.5545675E+06<br />
-1.6972142E+07 2.0000000E+00 0 1 1 1<br />
<br />
<br />
[VBGLU with INNA being the S-band data set, and IN2NA being the C-band one]<br />
<br />
File = SN96CR FCS .VBGLU . 1 Vol = 1 Userid = 1977 Channels = <br />
1 to 1<br />
Source= SN1996CR RA = 14 13 10.01 DEC = -65 20 44.6 IF = 9<br />
Freq= 4.786874865 GHz Ncor= 4 No. vis= 335343 Sort order= T<br />
NOTE: U,V and W are in wavelengths at the reference frequency [Header<br />
freq = 2.2468750E+09 ]<br />
Weights have been multiplied by 1.0E+01<br />
<br />
SN1996CR<br />
Vis # IAT Base Suba UU-L-SIN VV-L-SIN <br />
WW-L-SIN INTTIM GATEID CORR-I SOURCE FREQSE<br />
<br />
67976 30/09:08:35.973 6- 1 1 -4.9336641E+05 4.3928269E+05<br />
-5.5191944E+05 2.0000000E+00 0 1 1 1<br />
67977 30/09:08:37.950 6- 1 1 -4.9334166E+05 4.3934819E+05<br />
-5.5188944E+05 2.0000000E+00 0 1 1 1<br />
67978 30/09:08:39.928 6- 1 1 -4.9331681E+05 4.3941372E+05<br />
-5.5185944E+05 2.0000000E+00 0 1 1 1<br />
67979 30/09:08:42.070 6- 1 1 -4.9329197E+05 4.3947928E+05<br />
-5.5182944E+05 2.0000000E+00 0 1 1 1<br />
67980 30/09:08:44.048 6- 1 1 -4.9326709E+05 4.3954481E+05<br />
-5.5179950E+05 2.0000000E+00 0 1 1 1<br />
67981 30/09:08:46.025 2- 1 1 -5.9018930E+06 9.1717680E+06 <br />
2.9689205E+06 2.0000000E+00 0 1 1 1<br />
67982 30/09:08:46.025 4- 1 1 -6.2564320E+06 2.6079522E+06<br />
-7.9715920E+06 2.0000000E+00 0 1 1 1<br />
67983 30/09:08:46.025 6- 1 1 -4.9324219E+05 4.3961031E+05<br />
-5.5176950E+05 2.0000000E+00 0 1 1 1<br />
67984 30/09:08:46.025 4- 1 1 -3.5453909E+05 -6.5638165E+06<br />
-1.0940512E+07 2.0000000E+00 0 2 1 1<br />
67985 30/09:08:46.025 6- 1 1 5.4086510E+06 -8.7321570E+06<br />
-3.5206902E+06 2.0000000E+00 0 2 1 1<br />
67986 30/09:08:46.025 6- 1 1 5.7631900E+06 -2.1683418E+06 <br />
7.4198230E+06 2.0000000E+00 0 4 1 1<br />
67987 30/09:08:48.003 2- 1 1 -5.9004965E+06 9.1725510E+06 <br />
2.9692795E+06 2.0000000E+00 0 1 1 1<br />
67988 30/09:08:48.003 4- 1 1 -6.2565695E+06 2.6087832E+06<br />
-7.9712125E+06 2.0000000E+00 0 1 1 1<br />
67989 30/09:08:48.003 6- 1 1 -4.9321738E+05 4.3967581E+05<br />
-5.5173956E+05 2.0000000E+00 0 1 1 1<br />
<br />
<br />
[VBGLU with INNA being the S-band data set, and IN2NA being the C-band one]<br />
File = SN96CR FCS .VBGLU . 2 Vol = 1 Userid = 1977 Channels = <br />
1 to 1<br />
Source= SN1996CR RA = 14 13 10.01 DEC = -65 20 44.6 IF = 9<br />
Freq= 4.786874865 GHz Ncor= 4 No. vis= 335343 Sort order= T<br />
NOTE: U,V and W are in wavelengths at the reference frequency<br />
Weights have been multiplied by 1.0E+01<br />
<br />
SN1996CR<br />
Vis # IAT Base Suba UU-L-SIN VV-L-SIN <br />
WW-L-SIN INTTIM GATEID CORR-I SOURCE FREQSE<br />
<br />
67976 30/09:08:35.973 1- 6 1 -4.9336641E+05 4.3928269E+05<br />
-5.5191944E+05 2.0000000E+00 0 1 1 1<br />
67977 30/09:08:37.950 1- 6 1 -4.9334166E+05 4.3934819E+05<br />
-5.5188944E+05 2.0000000E+00 0 1 1 1<br />
67978 30/09:08:39.928 1- 6 1 -4.9331681E+05 4.3941372E+05<br />
-5.5185944E+05 2.0000000E+00 0 1 1 1<br />
67979 30/09:08:42.070 1- 6 1 -4.9329197E+05 4.3947928E+05<br />
-5.5182944E+05 2.0000000E+00 0 1 1 1<br />
67980 30/09:08:44.048 1- 6 1 -4.9326709E+05 4.3954481E+05<br />
-5.5179950E+05 2.0000000E+00 0 1 1 1<br />
67981 30/09:08:46.025 1- 2 1 -5.9018930E+06 9.1717680E+06 <br />
2.9689205E+06 2.0000000E+00 0 1 1 1<br />
67982 30/09:08:46.025 1- 4 1 -6.2564320E+06 2.6079522E+06<br />
-7.9715920E+06 2.0000000E+00 0 1 1 1<br />
67983 30/09:08:46.025 1- 6 1 -4.9324219E+05 4.3961031E+05<br />
-5.5176950E+05 2.0000000E+00 0 1 1 1<br />
67984 30/09:08:46.025 2- 4 1 -3.5453909E+05 -6.5638165E+06<br />
-1.0940512E+07 2.0000000E+00 0 1 1 1<br />
67985 30/09:08:46.025 2- 6 1 5.4086510E+06 -8.7321570E+06<br />
-3.5206902E+06 2.0000000E+00 0 1 1 1<br />
67986 30/09:08:46.025 4- 6 1 5.7631900E+06 -2.1683418E+06 <br />
7.4198230E+06 2.0000000E+00 0 1 1 1<br />
67987 30/09:08:48.003 1- 2 1 -5.9004965E+06 9.1725510E+06 <br />
2.9692795E+06 2.0000000E+00 0 1 1 1<br />
67988 30/09:08:48.003 1- 4 1 -6.2565695E+06 2.6087832E+06<br />
-7.9712125E+06 2.0000000E+00 0 1 1 1<br />
67989 30/09:08:48.003 1- 6 1 -4.9321738E+05 4.3967581E+05<br />
-5.5173956E+05 2.0000000E+00 0 1 1<br />
<br />
<br />
michael<br />
<br />
<br />
> That is bizarre. The code reads the baseline values<br />
> either BASELINE or ANTENNA1/ANTENNA2. But it does not<br />
> change them on output. Your PRTUV does not resemble an<br />
> accidental overwrite - it is too clean. Try PRTUV with<br />
> DPARM(6) = 1 to examine the random parameters. Do you<br />
> have BASELINE or the ANTENNA1 ANTENNA2 SUBARRAY form? <br />
> The random parameters are simply copied from the first<br />
> data set found at a given time, the baseline is checked to<br />
> make sure that a 2nd data set being combined has the same<br />
> baseline.<br />
><br />
> Eric Greisen NRAO AIPS Manager<br />
><br />
> View and reply to this ticket online:<br />
> https://help.nrao.edu/tickets/32867 @media only screen { html {<br />
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