[daip] fillm problem

Data Analysts analysts at aoc.nrao.edu
Thu Apr 1 13:37:41 EST 2004


Dear Eric,

  we ran into an odd FILLM problem when loading AC713 15mar04 data.  When
loading with no time range AIPS reports finding data on both the
calibrator and the source, but no calibrator data appear in LISTR/SCAN
(even if one runs INDXR later).  If one sets a time range to start loading
data a few minutes into the file (at midnight...), the resulting data set is
fine.  There were odd things going on at the VLA (ANTSOL crashed, timing
problems, etc. etc. -- check Pat Van Buskirk for details) so this sort of
strange behavior is perhaps not surprising.

  Given all this weirdness it's not clear whether you want to consider this
a FILLM bug or a fluke.  I've appended the inputs to FILLM and the LISTR
output in case you do want to track this down.  The data are available on
agave's ftp site, called AC713* (two files).  Please let Meri know if you
decided *NOT* to go after this, as she will then want to delete those files.

  Cheers,

          Michael (analyst for a day???)

Evil FILLM -- change timerange to 1 0 0 0 10 0 0 0 to get good data out

AIPS 1: FILLM     Task to read a VLA archive tape
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE        1                    Tape drive number
AIPS 1: INFILE     'PUB:AC713_C040315.xp                            '
AIPS 1:                                    Non-blank: disk file name
AIPS 1: NFILES        0                    Number of files to advance
AIPS 1:                                    Also applies to ON-LINE!
AIPS 1: BAND       '    '                  Freq. band (4,P,L,C,X,U,K,Q)
AIPS 1: QUAL         -1                    Source qualifier -1=>all
AIPS 1: CALCODE    '    '                  Calibrator code
AIPS 1: VLAOBS     'AC713 '                VLA obs. pgm. name ('AZ99')
AIPS 1: VLAMODE    '  '                    VLA obs. mode ('  '=any)
AIPS 1: REFDATE    '20040315'              Reference date. 'yyyymmdd'
AIPS 1: TIMERANG   *all 0                  Timerange selected
AIPS 1: BCHAN         1                    First spectral channel
AIPS 1: ECHAN         0                    Highest spectral channel
AIPS 1: OUTNAME    'AC713.040315'          Output UV file name (name)
AIPS 1: OUTSEQ        0                    Output UV file name (seq. #)
AIPS 1: OUTDISK       7                    Output UV file disk unit #.
AIPS 1: DOUVCOMP     -1                    1 (T) => compressed data
AIPS 1: DOALL         1                    1 (T) => write all data.
AIPS 1: DOCONCAT      1                    1 (T) => append data to old
AIPS 1:                                    files
AIPS 1: NCOUNT        2                    Number of files to read
AIPS 1: DOWEIGHT      1                    Use nominal sensitivity to
AIPS 1:                                    scale weights?
AIPS 1:                                    = 10, use Memo 108 weights
AIPS 1: DOACOR       -1                    Load autocorrelation data?
AIPS 1: CPARM      *all 0                  User options.
AIPS 1:                                    1 => Avg. time (seconds)
AIPS 1:                                    2 => bitmap    (see help)
AIPS 1:                                         = 16 for planets & Sun
AIPS 1:                                    3 => Max. OK IF status
AIPS 1:                                         <=3 => 3
AIPS 1:                                    4 => Control dropping of
AIPS 1:                                         shadowed data
AIPS 1:                                         < 0 => no shadow check
AIPS 1:                                         0 => 25 m limit
AIPS 1:                                         > 0 => Shadow limit is
AIPS 1:                                               CPARM(4) in meters
AIPS 1:                                    5 = channel code (see HELP)
AIPS 1:                                    6 => Subarray number-see HELP
AIPS 1:                                    7 => FQ entry tolerance (kHz)
AIPS 1:                                         (see HELP)
AIPS 1:                                    8 => CL table time incr. min
AIPS 1:                                    9 => TY table time incr. min
AIPS 1:                                    10=> Calibrator avg. time
AIPS 1: DPARM      *all 0                  Selection by Frequency
AIPS 1:                                    1+2 => A Frequency (Hz)
AIPS 1:                                    3+4 => B Frequency (Hz)
AIPS 1:                                    5+6 => C Frequency (Hz)
AIPS 1:                                    7+8 => D Frequency (Hz)
AIPS 1:                                    9 => tolerance for A&C
AIPS 1:                                    10 => tolerance for B&D
AIPS 1: BPARM      *all 0                  Opacity and Gain curve
AIPS 1:                                    control (see help)
AIPS 1: IN2FILE    '                                                '
AIPS 1:                                    Antenna gains file


LISTR/SCAN:
File = 20040315    .CH 0  .   1 Vol = 3  Userid = 1772
Freq = 25.053758544 GHz   Ncor =  2   No. vis =    339451
Scan summary listing
 
Scan      Source      Qual  Calcode Sub         Timerange          FrqID   START VIS  END
   1 A5142           : 0000           1  0/23:54:50 -   0/23:54:50     1       1
   2 A5142           : 0000           1  0/23:55:40 -   0/23:55:40     1       1        21
   3 A5142           : 0000           1  0/23:55:50 -   1/00:13:40     1     211      3490
   4 A5142           : 0000           1  1/00:15:00 -   1/00:16:40     1   34909      3815
   5 A5142           : 0000           1  1/00:17:30 -   1/00:27:30     1   38159      5765
   6 A5142           : 0000           1  1/00:28:30 -   1/00:30:30     1   57659      6156
   7 A5142           : 0000           1  1/00:31:30 -   1/00:41:40     1   61565      8139
   8 A5142           : 0000           1  1/00:42:50 -   1/00:44:50     1   81393      8529
   9 0319+415        : 0000  B        1  1/00:51:00 -   1/01:18:20     1   85296     13848
  10 A5142           : 0000           1  1/01:23:50 -   1/01:25:40     1  138488     14198
  11 A5142           : 0000           1  1/01:31:40 -   1/01:42:20     1  141985     16165
  12 A5142           : 0000           1  1/01:44:00 -   1/01:46:30     1  161655     16615
  13 A5142           : 0000           1  1/01:48:10 -   1/01:58:20     1  166156     18578
  14 A5142           : 0000           1  1/01:59:40 -   1/02:01:40     1  185784     18963
  15 A5142           : 0000           1  1/02:03:00 -   1/02:13:10     1  189634     20944
  16 A5142           : 0000           1  1/02:14:10 -   1/02:16:20     1  209444     21355
  17 A5142           : 0000           1  1/02:19:50 -   1/02:21:20     1  213554     21669
  18 A5142           : 0000           1  1/02:22:20 -   1/02:32:30     1  216699     23652
  19 A5142           : 0000           1  1/02:33:20 -   1/02:35:20     1  236525     24039
  20 A5142           : 0000           1  1/02:36:10 -   1/02:46:20     1  240400     26017
  21 A5142           : 0000           1  1/02:47:10 -   1/02:49:10     1  260175     26409
  22 A5142           : 0000           1  1/02:49:50 -   1/02:59:50     1  264096     28341
  23 A5142           : 0000           1  1/03:00:30 -   1/03:02:40     1  283417     28764
  24 A5142           : 0000           1  1/03:06:10 -   1/03:07:50     1  287642     29113
  25 A5142           : 0000           1  1/03:08:30 -   1/03:18:30     1  291139     31063
  26 A5142           : 0000           1  1/03:19:10 -   1/03:21:10     1  310639     31456
  27 A5142           : 0000           1  1/03:21:50 -   1/03:32:00     1  314567     33439
  28 A5142           : 0000           1  1/03:32:40 -   1/03:35:10     1  334392     33945
 
Source summary
Velocity type = 'LSR     '    Definition = 'RADIO   '
 
  ID Source           Qual  Calcode RA(2000.0)     Dec(2000.0)  No. vis
   1 0555+398        : 0000   A     05:55:30.8056  39:48:49.165  286259
   1 A5142           : 0000         05:30:48.0256  33:47:54.400  286259
   3 0319+415        : 0000   B     03:19:48.1601  41:30:42.103   53192




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