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