[daip] Image Header have incorrect Visibilities
jabulani maswanganye
pop7paul at gmail.com
Wed Jul 18 02:32:45 EDT 2012
Hi Eric,
The file is large, about 32 GB.
I below are my input for ATLOD task, LISTR task output, AIPS_MSGSRV_7
output and imheader output. The visibilities in the imheader output does
not match with the total number of the visibilities in the LISTR task
output. To be more direct, the visibility of the first scan is the one
which correspond with the visibilities in the imheader output. Threre was
an error while loading the data. Which was ZERROR: ON FILE
DA01:UVD002001.002;
LOCALH> ATLOD1: ZERROR: IN ZCMPR2 ERRNO = 22 (Invalid argument)
LOCALH> ATLOD1: ATCLOS: ERROR COMPRESSING THE AIPS UV DISK FILE.
____________________________________________________________________________________
inp
AIPS 1: ATLOD: Task which reads RPFITS format uv data into AIPS.
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE 1 Tape drive number (0 -> 1)
AIPS 1: No REMOTE capability
AIPS 1: NSKIP 0 Number of tape files to
AIPS 1: skip (0 -> 0)
AIPS 1: NFILES 0 Number of tape files to
AIPS 1: load (0 -> 1)
AIPS 1: BCOUNT 1 First scan to read (0 -> 1)
AIPS 1: NCOUNT 0 No. scans to read (0 -> all)
AIPS 1: DATAIN 'H:V215B.RPF' Disk file name
AIPS 1: OUTNAME 'V215B' Output uv file name (name)
AIPS 1: blank -> source name
AIPS 1: OUTCLASS 'UVDATA' Output uv file name (class)
AIPS 1: blank -> UVDATA
AIPS 1: OUTSEQ 0 Output uv sequence number
AIPS 1: 0 -> highest unique AND a
AIPS 1: new file for EACH pass
AIPS 1: OUTDISK 1 Output disk drive number
AIPS 1: OPTYPE ' ' 'LOAD' load data (default)
AIPS 1: 'LIST' scan summary
AIPS 1: 'SUMM' file summary
AIPS 1: 'SYSC' dump syscal info
AIPS 1: see CPARM(9)
AIPS 1: SOURCES *all ' ' Source selection list
AIPS 1: TIMERANG *all 0 Time range selection
AIPS 1: FREQSEL *all 0 Frequencies to select (MHz)
AIPS 1: IFSEL *all 0 IFs to select
AIPS 1: CHANSEL *all 0 Channel selection array:
AIPS 1: (1,n) start channel group n
AIPS 1: (2,n) end channel group n
AIPS 1: (3,n) incr. channel group n
AIPS 1: IFMAP 0 True to map on-line IF chain
AIPS 1: to AIPS IF axis.
AIPS 1: NIF 0 Length of IF axis,
AIPS 1: 0 => ATLOD decides.
AIPS 1: DOUVCOMP -1 Use compressed data?
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: APARM -1 0 1) If > 0, convert to Stokes
AIPS 1: 1 0 if < 0, kludge RR,LL,RL,LR
AIPS 1: 0 0 if = 0, don't change the
AIPS 1: 1 *rest 0 polarizations
AIPS 1: 2) If true, keep flagged data
AIPS 1: 3) If true, retain
AIPS 1: autocorrelations
AIPS 1: 4) Shadowing diameter (m)
AIPS 1: 5) max NX time gap (min)
AIPS 1: 0 -> 10 min
AIPS 1: 6) max NX scan length (min)
AIPS 1: 0 -> 60 min
AIPS 1: 7) CL entry interval (min)
AIPS 1: 0 -> 5 min
AIPS 1: 8) Number of integrations
AIPS 1: over which to average Tsys
AIPS 1: 0 -> 1 See HELP/EXPLAIN
AIPS 1: 9) Number of integrations
AIPS 1: over which to average XY
AIPS 1: phase diff if APARM(1) = 1
AIPS 1: 0 -> 1 See HELP/EXPLAIN
AIPS 1: 10) If non-zero drop data on
AIPS 1: quality of XY phase diff.
AIPS 1: See HELP/EXPLAIN
AIPS 1: BPARM *all 0 Baselines to be rejected,
AIPS 1: (see HELP)
AIPS 1: CPARM *all 0 Further control parameters:
AIPS 1: 1) System cal. info. print
AIPS 1: level. See HELP/EXPLAIN
AIPS 1: 2) If true negate system XY
AIPS 1: cal phase difference
AIPS 1: 3) If true, negate phases
AIPS 1: 4) If true, use XYPHASE array
AIPS 1: instead of on-line values
AIPS 1: 5) If true, apply XY phase to
AIPS 1: the Y gain
AIPS 1: 6) If 1, report antennas for
AIPS 1: which sampler stats bad
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: If 2, drop baselines with
AIPS 1: bad sampler statistics
AIPS 1: If 3, do 1 and 2
AIPS 1: If 4, correct data for
AIPS 1: bad statistics.
AIPS 1: 7) Sampler tolerance
AIPS 1: 8) If true, DATAIN will be
AIPS 1: read as lower case. This
AIPS 1: is intended for reading
AIPS 1: from VAX disks mounted
AIPS 1: under unix via multinet.
AIPS 1: 9) If OPTYPE='SYSC' then the
AIPS 1: 3 text files contain:
AIPS 1: 1 => XY phase, Tx & Ty
AIPS 1: 2 => X sampler stats
AIPS 1: 3 => Y sampler stats
AIPS 1: 0 => 1
AIPS 1: 10) If 1, Tsys from IF 1 is
AIPS 1: applied to IF 2, if
AIPS 1: APARM(8) is > 0
AIPS 1: XYPHASE *all 0 Enter XY phase difference for
AIPS 1: each antenna & FQID (degrees)
AIPS 1: DPARM *all 0 1) If > 0, then the scan
AIPS 1: based source number of all
AIPS 1: sources is set to 1.
AIPS 1: 2) If > 0, the spectra are
AIPS 1: 3-point Hanning smoothed.
AIPS 1: 3) If > 0 -> set weights to
AIPS 1: D(3) instead of integration
AIPS 1: time in units of 15s
>go
AIPS 1: Resumes
>pcat
AIPS 1: Catalog on disk 1
AIPS 1: Cat Usid Mapname Class Seq Pt Last access Stat
AIPS 1: 1 2 0637-752 .UVDATA. 1 UV 17-JUL-2012 15:39:56
AIPS 1: 2 2 V215B .UVDATA. 1 UV 18-JUL-2012 07:59:52
>getname 2; imh
AIPS 1: Got(1) disk= 1 user= 2 type=UV V215B.UVDATA.1
AIPS 1: Image=0637-752 (UV) Filename=V215B .UVDATA. 1
AIPS 1: Telescope=ATLBA Receiver=
AIPS 1: Observer= User #= 2
AIPS 1: Observ. date=20-MAR-2007 Map date=18-JUL-2012
AIPS 1: # visibilities 4500 Sort order TB
AIPS 1: Rand axes: UU-L VV-L WW-L BASELINE TIME1 SOURCE FREQSEL
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type Pixels Coord value at Pixel Coord incr Rotat
AIPS 1: COMPLEX 3 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 4097 6.6670000E+09 0.00 9.7656250E+02 0.00
AIPS 1: IF 1 1.0000000E+00 1.00 1.0000000E+00 0.00
AIPS 1: RA 1 06 35 46.508 1.00 3600.000 0.00
AIPS 1: DEC 1 -75 16 16.816 1.00 3600.000 0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Maximum version number of extension files of type HI 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 SU is 1
AIPS 1: Maximum version number of extension files of type AN is 1
AIPS 1: Maximum version number of extension files of type NX is 1
AIPS 1: Maximum version number of extension files of type CL is 1
>
LOCALH> ATLOD1: Task ATLOD (release of 31DEC12) begins
LOCALH> ATLOD1: Dropping all flagged visibilities.
LOCALH> ATLOD1: Retaining autocorrelations.
LOCALH> ATLOD1: Vis weights set to integration time in units of 15 sec
LOCALH> ATLOD1: Averaging all pulsar bins
LOCALH> ATLOD1:
LOCALH> ATLOD1: Processing file: 1
LOCALH> ATLOD1: Input polarizations: RR,LL
LOCALH> ATLOD1: Kludging polarizations to be circular
LOCALH> ATLOD1:
LOCALH> ATLOD1: Create V215B .UVDATA. 1 (UV) on disk 1 cno 2
LOCALH> ATLOD1: Recomputing UVWs for pre-20/02/1998 LBA data
LOCALH> ATLOD1:
LOCALH> ATLOD1: File: 1, Scan: 1
LOCALH> ATLOD1: Date: 2007-03-20 UT start: 0 13:00:01
LOCALH> ATLOD1:
LOCALH> ATLOD1: Visibilities accepted/rejected for each source/frequency:
LOCALH> ATLOD1: Sideband +1
LOCALH> ATLOD1: AIPS IF axis 1
LOCALH> ATLOD1: Source/Freq(GHz) 6.667000
LOCALH> ATLOD1: 0637-752 4500/0
LOCALH> ATLOD1: 1733-3722 17250/0
LOCALH> ATLOD1: G351.78-0.54 90000/0
LOCALH> ATLOD1: Category summaries of visibilities for this scan:
LOCALH> ATLOD1: Recomputing UVWs for pre-20/02/1998 LBA data
LOCALH> ATLOD1:
LOCALH> ATLOD1: File: 1, Scan: 2
LOCALH> ATLOD1: Date: 2007-03-20 UT start: 0 17:08:21
LOCALH> ATLOD1:
LOCALH> ATLOD1: Visibilities accepted/rejected for each source/frequency:
LOCALH> ATLOD1: Sideband +1
LOCALH> ATLOD1: AIPS IF axis 1
LOCALH> ATLOD1: Source/Freq(GHz) 6.667000
LOCALH> ATLOD1: 0637-752 0/0
LOCALH> ATLOD1: 1733-3722 61215/0
LOCALH> ATLOD1: G351.78-0.54 266910/0
LOCALH> ATLOD1: 1921-293 44519/0
LOCALH> ATLOD1: Category summaries of visibilities for this scan:
LOCALH> ATLOD1:
LOCALH> ATLOD1: Finished reading file number 1.
LOCALH> ATLOD1: ZERROR: ON FILE DA01:UVD002001.002;
LOCALH> ATLOD1: ZERROR: IN ZCMPR2 ERRNO = 22 (Invalid argument)
LOCALH> ATLOD1: ATCLOS: ERROR COMPRESSING THE AIPS UV DISK FILE.
LOCALH> ATLOD1: Some of the AIPS files may have been left open.
LOCALH> ATLOD1: Appears to have ended successfully
LOCALH> ATLOD1: localhos 31DEC12 TST: Cpu= 260.4 Real= 738 IO=
45440
AIPS 1: Got(1) disk= 1 user= 2 type=UV V215B.UVDATA.1
localhos LISTR(31DEC12) 2 18-JUL-2012 08:22:23 Page 1
File = V215B .UVDATA. 1 Vol = 1 Userid = 2
Freq = 6.667000000 GHz Ncor = 2 No. vis = 4500
Scan summary listing
Scan Source Qual Calcode Sub Timerange FrqID
START VIS END VIS
1 0637-752 : 0001 1 0/13:00:01 - 0/13:09:59
1 1 4500
2 1733-3722 : 0001 1 0/13:10:01 - 0/13:14:59 1
4501 6750
3 G351.78-0.54 : 0001 1 0/13:15:01 - 0/13:34:59 1
6751 15750
4 1733-3722 : 0001 1 0/13:35:01 - 0/13:38:29 1
15751 17325
5 G351.78-0.54 : 0001 1 0/13:38:31 - 0/13:58:29 1
17326 26325
6 1733-3722 : 0001 1 0/13:58:31 - 0/14:01:59 1
26326 27900
7 G351.78-0.54 : 0001 1 0/14:02:01 - 0/14:21:59 1
27901 36900
8 1733-3722 : 0001 1 0/14:22:01 - 0/14:25:29 1
36901 38475
9 G351.78-0.54 : 0001 1 0/14:25:31 - 0/14:45:29 1
38476 47475
10 1733-3722 : 0001 1 0/14:45:31 - 0/14:48:59 1
47476 49050
11 G351.78-0.54 : 0001 1 0/14:49:01 - 0/15:08:59 1
49051 58050
12 1733-3722 : 0001 1 0/15:09:01 - 0/15:12:29 1
58051 59625
13 G351.78-0.54 : 0001 1 0/15:12:31 - 0/15:32:29 1
59626 68625
14 1733-3722 : 0001 1 0/15:32:31 - 0/15:35:59 1
68626 70200
15 G351.78-0.54 : 0001 1 0/15:36:01 - 0/15:55:59 1
70201 79200
16 1733-3722 : 0001 1 0/15:56:01 - 0/15:59:29 1
79201 80775
17 G351.78-0.54 : 0001 1 0/15:59:31 - 0/16:19:29 1
80776 89775
18 1733-3722 : 0001 1 0/16:19:31 - 0/16:22:59 1
89776 91350
19 G351.78-0.54 : 0001 1 0/16:23:01 - 0/16:42:59 1
91351 100350
20 1733-3722 : 0001 1 0/16:43:01 - 0/16:46:29 1
100351 101925
21 G351.78-0.54 : 0001 1 0/16:46:31 - 0/17:06:29 1
101926 110925
22 1733-3722 : 0001 1 0/17:06:31 - 0/17:08:19 1
110926 111750
23 1733-3722 : 0001 1 0/17:08:21 - 0/17:09:59 1
111751 112800
24 1921-293 : 0001 1 0/17:10:01 - 0/17:19:59 1
112801 119100
25 1733-3722 : 0001 1 0/17:20:01 - 0/17:24:29 1
119101 121935
26 G351.78-0.54 : 0001 1 0/17:24:31 - 0/17:44:29 1
121936 134535
27 1733-3722 : 0001 1 0/17:44:31 - 0/17:47:59 1
134536 136740
28 G351.78-0.54 : 0001 1 0/17:48:01 - 0/18:07:59 1
136741 149340
29 1733-3722 : 0001 1 0/18:08:01 - 0/18:11:29 1
149341 151545
30 G351.78-0.54 : 0001 1 0/18:11:31 - 0/18:31:29 1
151546 164145
31 1733-3722 : 0001 1 0/18:31:31 - 0/18:34:59 1
164146 166350
32 G351.78-0.54 : 0001 1 0/18:35:01 - 0/18:54:59 1
166351 178950
33 1733-3722 : 0001 1 0/18:55:01 - 0/18:58:29 1
178951 181155
Type Q to stop, just hit RETURN to
continue
localhos LISTR(31DEC12) 2 18-JUL-2012 08:22:30 Page 2
File = V215B .UVDATA. 1 Vol = 1 Userid = 2
Scan Source Qual Calcode Sub Timerange FrqID
START VIS END VIS
34 1921-293 : 0001 1 0/18:58:31 - 0/19:08:29 1
181156 187455
35 1733-3722 : 0001 1 0/19:08:31 - 0/19:12:59 1
187456 190290
36 G351.78-0.54 : 0001 1 0/19:13:01 - 0/19:32:59 1
190291 202890
37 1733-3722 : 0001 1 0/19:33:01 - 0/19:36:29 1
202891 205095
38 G351.78-0.54 : 0001 1 0/19:36:31 - 0/19:56:29 1
205096 217695
39 1733-3722 : 0001 1 0/19:56:31 - 0/19:59:59 1
217696 219900
40 G351.78-0.54 : 0001 1 0/20:00:01 - 0/20:19:59 1
219901 232500
41 1733-3722 : 0001 1 0/20:20:01 - 0/20:23:29 1
232501 234705
42 G351.78-0.54 : 0001 1 0/20:23:31 - 0/20:43:29 1
234706 247305
43 1733-3722 : 0001 1 0/20:43:31 - 0/20:46:59 1
247306 249510
44 1921-293 : 0001 1 0/20:47:01 - 0/20:56:59 1
249511 255810
45 1733-3722 : 0001 1 0/20:57:01 - 0/21:01:29 1
255811 258645
46 G351.78-0.54 : 0001 1 0/21:01:31 - 0/21:21:29 1
258646 271245
47 1733-3722 : 0001 1 0/21:21:31 - 0/21:24:59 1
271246 273450
48 G351.78-0.54 : 0001 1 0/21:25:01 - 0/21:44:59 1
273451 286050
49 1733-3722 : 0001 1 0/21:45:01 - 0/21:48:29 1
286051 288255
50 G351.78-0.54 : 0001 1 0/21:48:31 - 0/22:08:49 1
288256 301065
51 1733-3722 : 0001 1 0/22:08:51 - 0/22:12:39 1
301066 303480
52 G351.78-0.54 : 0001 1 0/22:12:41 - 0/22:32:59 1
303481 316290
53 1733-3722 : 0001 1 0/22:33:01 - 0/22:36:49 1
316291 318705
54 G351.78-0.54 : 0001 1 0/22:36:51 - 0/22:57:09 1
318706 331515
55 1733-3722 : 0001 1 0/22:57:11 - 0/23:00:59 1
331516 333930
56 G351.78-0.54 : 0001 1 0/23:01:01 - 0/23:21:19 1
333931 346740
57 1733-3722 : 0001 1 0/23:21:21 - 0/23:25:09 1
346741 349155
58 G351.78-0.54 : 0001 1 0/23:25:11 - 0/23:45:29 1
349156 361965
59 1733-3722 : 0001 1 0/23:45:31 - 0/23:49:19 1
361966 364380
60 G351.78-0.54 : 0001 1 0/23:49:21 - 1/00:09:39 1
364381 377190
61 1733-3722 : 0001 1 1/00:09:41 - 1/00:13:29 1
377191 379605
62 1921-293 : 0001 1 1/00:13:31 - 1/00:33:49 1
379606 392415
63 1733-3722 : 0001 1 1/00:33:51 - 1/00:38:39 1
392416 395460
64 G351.78-0.54 : 0001 1 1/00:38:41 - 1/00:58:59 1
395461 408270
65 1733-3722 : 0001 1 1/00:59:01 - 1/01:02:49 1
408271 410685
66 G351.78-0.54 : 0001 1 1/01:02:51 - 1/01:23:09 1
410686 423495
67 1733-3722 : 0001 1 1/01:23:11 - 1/01:26:59 1
423496 425910
68 G351.78-0.54 : 0001 1 1/01:27:01 - 1/01:47:19 1
425911 438720
69 1733-3722 : 0001 1 1/01:47:21 - 1/01:51:09 1
438721 441135
Type Q to stop, just hit RETURN to
continue
localhos LISTR(31DEC12) 2 18-JUL-2012 08:22:30 Page 3
File = V215B .UVDATA. 1 Vol = 1 Userid = 2
Scan Source Qual Calcode Sub Timerange FrqID
START VIS END VIS
70 G351.78-0.54 : 0001 1 1/01:51:11 - 1/02:11:29 1
441136 453945
71 1733-3722 : 0001 1 1/02:11:31 - 1/02:15:19 1
453946 456360
72 G351.78-0.54 : 0001 1 1/02:15:21 - 1/02:35:39 1
456361 469170
73 1733-3722 : 0001 1 1/02:35:41 - 1/02:39:29 1
469171 471585
74 1921-293 : 0001 1 1/02:39:31 - 1/02:59:49 1
471586 484394
Source summary
Velocity type = ' ' Definition = ' '
ID Source Qual Calcode RA(2000.0) Dec(2000.0) IFlux
QFlux UFlux VFlux No. vis
1 0637-752 : 0001 06:35:46.5082 -75:16:16.816 0.000
0.000 0.000 0.000 4500
2 1733-3722 : 0001 17:33:15.1931 -37:22:32.398 0.000
0.000 0.000 0.000 78465
3 G351.78-0.54 : 0001 17:26:42.5600 -36:09:17.500 0.000
0.000 0.000 0.000 356910
4 1921-293 : 0001 19:24:51.0563 -29:14:30.117 0.000
0.000 0.000 0.000 44519
ID Source Freq(GHz) Velocity(Km/s) Rest freq (GHz)
1 All Sources 6.6670 0.0000 0.0000
Frequency Table summary
FQID IF# Freq(GHz) BW(kHz) Ch.Sep(kHz) Sideband Bandcode
1 1 6.66700000 4000.9768 0.9766 1
AIPS 1: Resumes
__________________________________________________________________________________
Regards*
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
Maswanganye Jabulani Paul*
*HARTRAO, P.O.Box 443,Krugersdorp 1740, South Africa*
*Cell No: +27(0)72 541 0749 (H/W) *
*Phone: +27(12) 301-3225 (W)*
*Fax: +27(12) 301 3300 (w)*
*Email address: pop7paul at gmail.com or <pop7paul at gmail.com>
jabulani at hartrao.ac.za*
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
On 18 July 2012 01:11, Eric Greisen <egreisen at nrao.edu> wrote:
> jabulani maswanganye wrote:
>
>> Dear All,
>>
>> I loaded my data wit 'ATLOD' and aparm(1)=-1, aparm(3)=1, aparm(7)=1,
>> the rest set to default. The visibilities are incorrect. The visibilities
>> are for the first scan and this has become a problem when I run 'CVEL'.
>> 'CVEL' only do run for the first scan. My 'imh' and 'LISTR' are as follows:
>>
>> AIPS 1: Image=0637-752 (UV) Filename=0637-752 .UVDATA. 1
>> AIPS 1: Telescope=ATLBA Receiver=
>> AIPS 1: Observer= User #= 2
>> AIPS 1: Observ. date=20-MAR-2007 Map date=05-JUL-2012
>> AIPS 1: # visibilities 4500 Sort order TB
>>
>
> I was awfully slow to see this issue - and do not see any place obvious in
> ATLOD where it might come from. Your data take 98356 bytes on disk for
> each visibility. Is the UV file around 442601984 bytes in size or
> 47643058176 bytes in size? (cd to your data area and do an ls -l UV*)
>
> Your split clearly used the NX table and found all the data - or thought
> that it did. Perhaps a UVCOP would do that and fix the header.
>
> You do need to look at the data before CVEL to make sure that it is there.
>
> Eric Greisen
>
>
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