[daip] fillm problem

Data Analysts analysts at aoc.nrao.edu
Thu Mar 13 15:18:24 EST 2003


Hi Eric,

I've run into a problem with fillm when I try
to load VLA data from the archive disk.  
Specific example:

I tried to load data from /home/archive/VLA/tapes/XH02025/file_1 for AA268.
My inputs were:  
AIPS 1: FILLM     Task to read a VLA archive tape
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE        3                    Tape drive number
AIPS 1: INFILE     'MYAREA:XH02025/file_                            '
AIPS 1:                                    Non-blank: disk file name
AIPS 1: NFILES        0                    Number of files to advance
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     'AA268 '                VLA obs. pgm. name ('AZ99')
AIPS 1: VLAMODE    '  '                    VLA obs. mode ('  '=any)
AIPS 1: REFDATE    '        '              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    'FOO         '          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        1                    Number of files to read
AIPS 1: DOWEIGHT      1                    Use nominal sensitivity to
AIPS 1:                                    scale 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
>go

The output was:

aspen > FILLM1: aspen        31DEC03 TST: Cpu=       5.0  Real=     155
aspen > FILLM1: Task FILLM  (release of 31DEC03) begins
aspen > FILLM1: Shadow flag limit =  2.500E+01 meters.
aspen > FILLM1: Opacity correction in CL table weighted average of weather and
aspen > FILLM1:    season.  Weight for weather = 0.50
aspen > FILLM1: Gain curve correction in CL table read from file,
aspen > FILLM1:    with variation as function of antenna and band.
aspen > FILLM1: Opening MYAREA:XH02025/file_1
aspen > FILLM1: tape file #  1, start date/time = 20020307/17:49:30
aspen > FILLM1: FLDKIO: LBYTES=    4096 BUT IERR = 0
aspen > FILLM1: No data found meeting selection criteria!
aspen > FILLM1: Read         0 visibilities from  1 files
aspen > FILLM1: Appears to have ended successfully

So I downloaded the data from the archive to 
/home/e2earchive/AA268_D020308.xp1. FILLM works fine on
this file with the same parameters.

There is another example where FILLM will not work on
the file from the archive disk or the file after it's downloaded
to the disk /home/e2earchive.  In that case the number of
antennas changes... we think.  (But FILLM works fine from
the archive tape.)  And we get this error:

aspen > FILLM1: aspen        31DEC03 TST: Cpu=      23.3  Real=      51
aspen > FILLM1: Task FILLM  (release of 31DEC03) begins
aspen > FILLM1: Shadow flag limit =  2.500E+01 meters.
aspen > FILLM1: Opacity correction in CL table weighted average of weather and
aspen > FILLM1:    season.  Weight for weather = 0.50
aspen > FILLM1: Gain curve correction in CL table read from file,
aspen > FILLM1:    with variation as function of antenna and band.
aspen > FILLM1: Opening E2E:AA268_C020303.xp1
aspen > FILLM1:
aspen > FILLM1: *** ATTENTION - default: loading subarray 1 ***
aspen > FILLM1:
aspen > FILLM1: tape file #  1, start date/time = 20020303/16:27:00
aspen > FILLM1: MCINI: Processing Correlator Code '    ' with  26 antennas.
aspen > FILLM1: MCINI - Continuum, 2 compatible IFs
aspen > FILLM1: FLDKIO: LBYTES=   16384 BUT IERR = 0
aspen > FILLM1: No data found meeting selection criteria!
aspen > FILLM1: FLMCLS: ERROR   1 FLUSHING OUTPUT
aspen > FILLM1: FLMCLS: ERROR OCCURED ON STREAM   1
aspen > FILLM1: Purports to die of UNNATURAL causes
aspen > FILLM1: aspen        31DEC03 TST: Cpu=       0.6  Real=      32

Do you know what's causing this?  Is there something we should
do differently to make it work?

Thanks,
Meri



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