[daip] FITLD concat problem : more information
Walter Brisken
wbrisken at aoc.nrao.edu
Tue Mar 21 13:04:11 EST 2006
Here is some information about my FITLD failure on March 21, 2006 using
AOC TST version of AIPS. I am working with two files from a single
sequence of a VLBA correlation:
/home/parallax2/big/incoming/59200001.FITS
/home/parallax2/big/incoming/59210001.FITS
I individually loaded these onto my computer 'parallax',
user 2179, disk 5, slots 5 and 6
Inputs to FITLD below. These are the same inputs I've been using for
years in my pulsar processing.
FITLD from 'TST' won't concatennate these. 'NEW' concatennated the
files with no problem. That output file is called BB213C.NORM.1,
slot number 1 on disk 5, parallax, user 2179.
The failure message is:
FITLD1: Data with weight < 0.20 will be permanently flagged
FITLD1: UVCREA: DUPLICATE NAME BB213C .NORM . 1
FITLD1: BTRTAB: COULD NOT FIND OR CREATE UV FILE FOR TABLES
FITLD1: ERROR 2 RETURNED FROM BTRTAB
FITLD1: Purports to die of UNNATURAL causes
FITLD1: parallax 31DEC06 TST: Cpu= 0.0 Real= 0
AIPS 1: Resumes
One possible hint : I observed with PCALs turned off. Hence the PC table
won't get PC values, but should still contain the Cable Cal values.
Since I could load the data with 'NEW' my testing of VBMRG for
Jon Romney can proceed. Let me know what I can provide to make
debugging easier.
-Walter
Inputs..........
Load file 1 : /home/parallax2/big/incoming/59200001.FITS
AIPS 1: FITLD: Task to store an image or UV data from a FITS tape
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INTAPE 1 Input tape drive # (0 => 1)
AIPS 1: NFILES 0 # of files to advance on tape
AIPS 1: INFILE 'BIG:59200001.FITS' Disk file name
AIPS 1: OUTNAME '5920' File name (name)
AIPS 1: OUTCLASS 'FITLD' File name (class)
AIPS 1: OUTSEQ 1 File name (seq. #)
AIPS 1: 0 => highest unique number
AIPS 1: => matching (on VLBA)
AIPS 1: -1 => FITS tape value
AIPS 1: OUTDISK 5 Disk drive # (0 => any)
AIPS 1: OPTYPE ' ' Type of data to load,
AIPS 1: ' ' => all types
AIPS 1: 'UV' => UV data
AIPS 1: 'IM' => images
AIPS 1: NCOUNT 1 Number of files to load.
AIPS 1: DOTABLE 1 True (1.0) means load tables
AIPS 1: for images.
AIPS 1: DOUVCOMP -1 >0 => compressed data (FITS)
AIPS 1: DOCONCAT 1 >0 -> if VLBA or uv table,
AIPS 1: append data to existing
AIPS 1: files, or if no appropriate
AIPS 1: files exist create a new file
AIPS 1: and append all data to that
AIPS 1: file.
AIPS 1: *****************************
AIPS 1: Following adverbs are useful
AIPS 1: only when reading VLBA
AIPS 1: distribution tapes.
AIPS 1: *****************************
AIPS 1: CLINT 0.1 CL entry interval (min)
AIPS 1: 0 => 1 minute.
AIPS 1: SOURCES *all ' ' Source list to accept.
AIPS 1: QUAL -1 Source qualifier -1=>all
AIPS 1: TIMERANG *all 0 Timerange selected
AIPS 1: BCHAN 1 Lowest spectral channel
AIPS 1: number to select in each IF.
AIPS 1: 0=>1
AIPS 1: ECHAN 0 Highest spectral channel
AIPS 1: number to select in each IF.
AIPS 1: 0=>highest
AIPS 1: BIF 0 Lowest IF number 0=>1
AIPS 1: EIF 0 Highest IF number 0=>all
AIPS 1: DIGICOR 1 Controls the application of
AIPS 1: the VLBA correlator's digital
AIPS 1: correction.
AIPS 1: 0 or 1 => perform corrections
AIPS 1: 2 => perform cross-power
AIPS 1: corrections, do total-power
AIPS 1: only if zero padding used.
AIPS 1: -1 => do NOT perform
AIPS 1: corrections.
AIPS 1: SEE HELP for more details
AIPS 1: SELBAND -1 Bandwidth to select (kHz)
AIPS 1: SELFREQ -1 Frequency to select (MHz).
AIPS 1: See HELP.
AIPS 1: FQTOL -1 Frequency tolerance assigned
AIPS 1: to SELFREQ, FITLD will select
AIPS 1: data with freq. of SELFREQ
AIPS 1: +/- FQTOL.
AIPS 1: The unit of FQTOL is kHz.
AIPS 1: <=0 => 10 kHz
AIPS 1: WTTHRESH 0.2 Flagging threshold based on
AIPS 1: weights. See HELP.
AIPS 1: 0 => no flagging
AIPS 1: 1 => will flag ALL data
AIPS 1: OPCODE ' ' Specify if wish to keep VT
AIPS 1: (VLBA Tape Statistics) table.
AIPS 1: ' ' => do not copy VT table
AIPS 1: 'VT' => keep VT table
AIPS 1: NPIECE 0 Maximum uv table piece to
AIPS 1: load (ignored for tape unless
AIPS 1: NCOUNT = 1)
Second file same, but:
>infi 'big:59210001.FITS'
>outn '5921'
Note many messages of the following are produced.
FITLD1: GCINI: 'SENS_2' COLUMN NOT FOUND
FITLD1: PHINI: 'PC_FREQ_1' COLUMN HAS NO VALUES
FITLD1: PHINI: 'PC_REAL_1' COLUMN HAS NO VALUES
FITLD1: PHINI: 'PC_IMAG_1' COLUMN HAS NO VALUES
FITLD1: PHINI: 'PC_RATE_1' COLUMN HAS NO VALUES
FITLD1: PCINI: 'PC_FREQ 1' COLUMN HAS NO VALUES
FITLD1: PCINI: 'PC_REAL 1' COLUMN HAS NO VALUES
FITLD1: PCINI: 'PC_IMAG 1' COLUMN HAS NO VALUES
FITLD1: PCINI: 'PC_RATE 1' COLUMN HAS NO VALUES
FITLD1: TYINI: 'TSYS 2' COLUMN NOT FOUND
FITLD1: TYINI: 'TANT 2' COLUMN NOT FOUND
the PCINI messages are probably because pulse cals are turned off.
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