[daip] Problem with WSRT data
Mpati Ramatsoku
mpatir8 at gmail.com
Fri Apr 26 10:29:26 EDT 2013
Dear daip ,
I have a problem with the WSRT data, please see the details below
Through one observation we alternated between two sources.
Which i have renamed to my prefered name to make it easy to identify
them please see a copy of the SU table below:
Scan Source Qual Calcode Sub Timerange FrqID
1 3C48 : 0000 1 0/22:12:00 - 0/22:41:40 1
2 PP08A : 0000 1 0/22:46:30 - 0/22:46:30 1
3 PP09B : 0000 1 0/22:46:55 - 0/23:01:30 1
4 PP08A : 0000 1 0/23:01:55 - 0/23:16:30 1
5 PP09B : 0000 1 0/23:16:55 - 0/23:31:30 1
6 PP08A : 0000 1 0/23:31:55 - 0/23:46:30 1
7 PP09B : 0000 1 0/23:46:55 - 1/00:01:30 1
8 PP08A : 0000 1 1/00:01:55 - 1/00:16:30 1
9 PP09B : 0000 1 1/00:16:55 - 1/00:31:30 1
10 PP08A : 0000 1 1/00:31:55 - 1/00:46:30 1
11 PP09B : 0000 1 1/00:46:55 - 1/01:01:30 1
12 PP08A : 0000 1 1/01:01:55 - 1/01:16:30 1
13 PP09B : 0000 1 1/01:16:55 - 1/01:31:30 1
14 PP08A : 0000 1 1/01:31:55 - 1/01:46:30 1
15 PP09B : 0000 1 1/01:46:55 - 1/02:01:30 1
16 PP08A : 0000 1 1/02:01:55 - 1/02:16:30 1
17 PP09B : 0000 1 1/02:16:55 - 1/02:31:30 1
18 PP08A : 0000 1 1/02:31:55 - 1/02:46:30 1
19 PP09B : 0000 1 1/02:46:55 - 1/03:01:30 1
20 PP08A : 0000 1 1/03:01:55 - 1/03:16:30 1
21 PP09B : 0000 1 1/03:16:55 - 1/03:31:30 1
22 PP08A : 0000 1 1/03:31:55 - 1/03:46:30 1
23 PP09B : 0000 1 1/03:46:55 - 1/04:01:30 1
24 PP08A : 0000 1 1/04:01:55 - 1/04:16:30 1
25 PP09B : 0000 1 1/04:16:55 - 1/04:31:30 1
.....
I then ran "SPLAT" to separate the PP08As from the PP09B
Below are my splat inputs
AIPS 1: SPLAT Split/assemble the sources in single/multi source file
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME 'PPOBS08_SPLT' Input UV file name (name)
AIPS 1: INCLASS 'UVDATA' Input UV file name (class)
AIPS 1: INSEQ 1 Input UV file name (seq. #)
AIPS 1: INDISK 1 Input UV file disk unit #
AIPS 1: SOURCES 'PP08A' Source list
AIPS 1: *rest ' '
AIPS 1: QUAL -1 Source qualifier -1=>all
AIPS 1: CALCODE ' ' Calibrator code ' '=>all
AIPS 1: TIMERANG *all 0 Time range to copy
AIPS 1: STOKES ' ' Stokes type to pass.
AIPS 1: Look HELP.
AIPS 1: SELBAND -1 Bandwidth to select (kHz)
AIPS 1: SELFREQ -1 Frequency to select (MHz)
AIPS 1: FREQID -1 Freq. ID to select.
AIPS 1: BIF 1 Lowest IF number 0=>all
AIPS 1: EIF 8 Highest IF number 0=>all
AIPS 1: BCHAN 0 Lowest channel number 0=>all
AIPS 1: ECHAN 0 Highest channel number
AIPS 1: SUBARRAY 0 Subarray, 0=>all
AIPS 1: DOCALIB 1 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE 2 CL (or SN) table to apply
AIPS 1: DOPOL -1 If >0 correct polarization.
AIPS 1: PDVER 0 PD table to apply (DOPOL>0)
AIPS 1: BLVER -1 BL table to apply.
AIPS 1: FLAGVER 0 Flag table version.
AIPS 1: 0 => highest numbered table
AIPS 1: <0 => no flagging
AIPS 1: DOBAND 3 If >0 apply bandpass cal.
AIPS 1: Method used depends on value
AIPS 1: of DOBAND (see HELP file).
AIPS 1: BPVER 4 Bandpass table version
AIPS 1: SMOOTH *all 0 Smoothing function. See
AIPS 1: HELP SMOOTH for details.
AIPS 1: OUTNAME 'PP08A' Output UV file name (name)
AIPS 1: OUTCLASS ' ' Output UV file name (class)
AIPS 1: OUTSEQ 0 Output UV file name (seq. #)
AIPS 1: OUTDISK 1 Output UV file disk unit #.
AIPS 1: DOUVCOMP -1 1 (T) => compressed data
AIPS 1: APARM *all 0 Control information:
AIPS 1: 1 = 1 => avg. freq. in IF
AIPS 1: Use ICHANSEL.
AIPS 1: CHANNEL is not used
AIPS 1: = 2 => avg IF's also
AIPS 1: Use ICHANSEL.
AIPS 1: CHANNEL is not used
AIPS 1: = 3 => average each
AIPS 1: CHANNEL channels.
AIPS 1: ICHANSEL is not used.
AIPS 1: 2 = Input avg. time (sec)
AIPS 1: 3 > 0 => Drop subarrays
AIPS 1: 5 = 0 pass only xc data
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: = 1 pass xc and ac data
AIPS 1: = 2 pass only ac data
AIPS 1: 6 > 0 add full source name
AIPS 1: to header
AIPS 1: 7 = 0 assemble all selected
AIPS 1: sources in one
AIPS 1: multiple source file.
AIPS 1: > 0 split for single
AIPS 1: source files.
AIPS 1: ICHANSEL *all 0 Array of channel start, stop,
AIPS 1: and increment numbers and IF
AIPS 1: number to be used when
AIPS 1: averaging in frequency.
AIPS 1: It's used if APARM(1)=1 or 2
AIPS 1: CHANNEL 0 Number of chans to average
AIPS 1: together; if APARM(1) = 3
AIPS 1: CHINC 1 Increment in input chans for
AIPS 1: output 0 -> CHANNEL;
AIPS 1: if APARM(1) = 3
AIPS 1: SOLINT 0 Time of averaging in min.
AIPS 1: 0 => no averaging
AIPS 1: BADDISK *all 0
This gives me an SU table that looks like this:
kreiken LISTR(31DEC11) 129 26-APR-2013 16:06:25 Page 1
File = PP08A .SPLAT . 1 Vol = 1 Userid = 129
Freq = 1.408916275 GHz Ncor = 2 No. vis = 82392
Scan summary listing
Scan Source Qual Calcode Sub Timerange FrqID
1 PP08A : 0000 1 0/22:46:30 - 0/22:46:30 1
2 PP08A : 0000 1 0/23:01:55 - 0/23:16:30 1
3 PP08A : 0000 1 0/23:31:55 - 0/23:46:30 1
4 PP08A : 0000 1 1/00:01:55 - 1/00:16:30 1
5 PP08A : 0000 1 1/00:31:55 - 1/00:46:30 1
6 PP08A : 0000 1 1/01:01:55 - 1/01:16:30 1
7 PP08A : 0000 1 1/01:31:55 - 1/01:46:30 1
8 PP08A : 0000 1 1/02:01:55 - 1/02:16:30 1
9 PP08A : 0000 1 1/02:31:55 - 1/02:46:30 1
10 PP08A : 0000 1 1/03:01:55 - 1/03:16:30 1
11 PP08A : 0000 1 1/03:31:55 - 1/03:46:30 1
12 PP08A : 0000 1 1/04:01:55 - 1/04:16:30 1
13 PP08A : 0000 1 1/04:31:55 - 1/04:46:30 1
14 PP08A : 0000 1 1/05:01:55 - 1/05:16:30 1
15 PP08A : 0000 1 1/05:31:55 - 1/05:46:30 1
16 PP08A : 0000 1 1/06:01:55 - 1/06:16:30 1
17 PP08A : 0000 1 1/06:31:55 - 1/06:46:30 1
18 PP08A : 0000 1 1/07:01:55 - 1/07:16:30 1
19 PP08A : 0000 1 1/07:31:55 - 1/07:46:30 1
20 PP08A : 0000 1 1/08:01:55 - 1/08:16:30 1
21 PP08A : 0000 1 1/08:31:55 - 1/08:46:30 1
22 PP08A : 0000 1 1/09:01:55 - 1/09:16:30 1
23 PP08A : 0000 1 1/09:31:55 - 1/09:46:30 1
24 PP08A : 0000 1 1/10:01:55 - 1/10:16:30 1
25 PP08A : 0000 1 1/10:31:55 - 1/10:46:10 1
Type Q to stop, just hit RETURN to continue
kreiken LISTR(31DEC11) 129 26-APR-2013 16:06:26 Page 2
File = PP08A .SPLAT . 1 Vol = 1 Userid = 129
Source summary
Velocity type = ' ' Definition = ' '
ID Source Qual Calcode RA(2000.0) Dec(2000.0) No. vis
2 PP08A : 0000 04:53:58.3099 45:40:43.676 21
4 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
6 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
8 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
10 PP08A : 0000 04:53:58.3099 45:40:43.676 3498
12 PP08A : 0000 04:53:58.3099 45:40:43.676 3498
14 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
16 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
18 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
20 PP08A : 0000 04:53:58.3099 45:40:43.676 3378
22 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
24 PP08A : 0000 04:53:58.3099 45:40:43.676 3486
26 PP08A : 0000 04:53:58.3099 45:40:43.676 3474
28 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
30 PP08A : 0000 04:53:58.3099 45:40:43.676 3498
32 PP08A : 0000 04:53:58.3099 45:40:43.676 3498
34 PP08A : 0000 04:53:58.3099 45:40:43.676 3510
36 PP08A : 0000 04:53:58.3099 45:40:43.676 3330
38 PP08A : 0000 04:53:58.3099 45:40:43.676 3310
40 PP08A : 0000 04:53:58.3099 45:40:43.676 3330
42 PP08A : 0000 04:53:58.3099 45:40:43.676 3320
44 PP08A : 0000 04:53:58.3099 45:40:43.676 3277
46 PP08A : 0000 04:53:58.3099 45:40:43.676 3330
48 PP08A : 0000 04:53:58.3099 45:40:43.676 3320
50 PP08A : 0000 04:53:58.3099 45:40:43.676 3234
What I noticed is that scan numbers no longer correspond to the ID
numbers. This is a problem because I cannot run "IMAGR" as it says that
it requires "ONE and ONLY source". Is there a way to fix this? or a way
to create a single source file?
I should mention that I also used tried "SPLIT" with the following inputs:
AIPS 1: SPLIT Task to split multi-source uv data to single source
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: also works on single files.
AIPS 1: INNAME 'PPOBS08_SPLT' Input UV file name (name)
AIPS 1: INCLASS 'UVDATA' Input UV file name (class)
AIPS 1: INSEQ 1 Input UV file name (seq. #)
AIPS 1: INDISK 1 Input UV file disk unit #
AIPS 1: SOURCES 'PP08A' Source list
AIPS 1: *rest ' '
AIPS 1: QUAL -1 Source qualifier -1=>all
AIPS 1: CALCODE ' ' Calibrator code ' '=>all
AIPS 1: TIMERANG *all 0 Time range to copy
AIPS 1: STOKES ' ' Stokes type to pass.
AIPS 1: SELBAND -1 Bandwidth to select (kHz)
AIPS 1: SELFREQ -1 Frequency to select (MHz)
AIPS 1: FREQID -1 Freq. ID to select.
AIPS 1: BIF 1 Lowest IF number 0=>all
AIPS 1: EIF 8 Highest IF number 0=>all
AIPS 1: BCHAN 0 Lowest channel number 0=>all
AIPS 1: ECHAN 0 Highest channel number
AIPS 1: SUBARRAY 0 Subarray, 0=>all
AIPS 1: DOCALIB -1 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE 0 CL (or SN) table to apply
AIPS 1: DOPOL -1 If >0 correct polarization.
AIPS 1: PDVER 0 PD table to apply (DOPOL>0)
AIPS 1: BLVER -1 BL table to apply.
AIPS 1: FLAGVER 0 Flag table version
AIPS 1: DOBAND -1 If >0 apply bandpass cal.
AIPS 1: Method used depends on value
AIPS 1: of DOBAND (see HELP file).
AIPS 1: BPVER 0 Bandpass table version
AIPS 1: SMOOTH *all 0 Smoothing function. See
AIPS 1: HELP SMOOTH for details.
AIPS 1: OUTCLASS ' ' Output UV file name (class)
AIPS 1: OUTSEQ 1 Output UV file name (seq. #)
AIPS 1: OUTDISK 1 Output UV file disk unit #.
AIPS 1: DOUVCOMP -1 1 (T) => compressed data
AIPS 1: APARM *all 0 Control information:
AIPS 1: 1 = 1 => avg. freq. in IF
AIPS 1: multi-channel out
AIPS 1: = 2 => avg. freq. in IF
AIPS 1: single channel out
AIPS 1: = 3 => avg IF's also
AIPS 1: 2 = Input avg. time (sec)
AIPS 1: 3 > 0 => Drop subarrays
AIPS 1: 4 > 0 => calibrate weights
AIPS 1: 5 = 0 pass only xc data
AIPS 1: = 1 pass xc and ac data
AIPS 1: = 2 pass only ac data
AIPS 1: 6 > 0 add full source name
AIPS 1: to header
AIPS 1: NCHAV 1 Number of chan. to average.
AIPS 1: (used if APARM(1) = 1)
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: <= 0 -> ALL
AIPS 1: CHINC 1 Channel incr. between output
AIPS 1: channels (used if APARM(1)=1)
AIPS 1: ICHANSEL *all 0 Array of channel start, stop,
AIPS 1: and increment numbers and IF
AIPS 1: number to be used when
AIPS 1: averaging in frequency.
AIPS 1: (used if APARM(1) = 2, 3)
AIPS 1: BADDISK *all 0 Disks to avoid for scratch
It does not seem to create single source file, instead gives me mutliple
versions of the scans with the following tables:
AIPS 1: Image=MULTI (UV) Filename=PP08A -CAL.SPLAT . 1
AIPS 1: Telescope=WSRT Receiver=WSRT
AIPS 1: Observer=ProcessD User #= 129
AIPS 1: Observ. date=15-SEP-2012 Map date=26-APR-2013
AIPS 1: # visibilities 82392 Sort order TB
AIPS 1: Rand axes: UU-L-SIN VV-L-SIN WW-L-SIN TIME1 BASELINE
AIPS 1: SOURCE INTTIM WEIGHT SCALE
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type Pixels Coord value at Pixel Coord incr Rotat
AIPS 1: COMPLEX 1 1.0000000E+00 1.00 1.0000000E+00 0.00
AIPS 1: STOKES 2 -1.0000000E+00 1.00 -1.0000000E+00 0.00
AIPS 1: FREQ 256 1.4089163E+09 1.00 -3.9062500E+04 0.00
AIPS 1: IF 8 1.0000000E+00 1.00 1.0000000E+00 0.00
AIPS 1: RA 1 01 37 41.300 1.00 3600.000 0.00
AIPS 1: DEC 1 33 09 35.082 1.00 3600.000 0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Rest freq 1420.406 Vel type: OPTICAL wrt YOU
AIPS 1: Alt ref. value 3.53591E+06 wrt pixel 1.00
AIPS 1: Maximum version number of extension files of type NX is 1
AIPS 1: Maximum version number of extension files of type FQ is 1
AIPS 1: Maximum version number of extension files of type HI is 1
AIPS 1: Maximum version number of extension files of type AN is 1
Is there a way to possibly fix all of this?
Thank you
Kind regards
Mpati
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