[daip] ACFIT
Lynn D. Matthews
lmatthew at cfa.harvard.edu
Thu Mar 29 17:27:43 EDT 2007
I have just run ACFIT on a couple of VLBA data sets (with 2 IFs, 1
polarization), and the results look sensible, but I noticed that the
printed messages refer to an "offset of *********" being removed from the
template. Does this signify some problem? My task inputs are appended
below.
Lynn
---------------------------------------------------------
ACFIT1 11:32:04 Task ACFIT (release of 31DEC07) begins
ACFIT1 11:32:04 You are using a non-standard program
ACFIT1 11:32:04 Will write out baseline-corrected autocorrelations
ACFIT1 11:32:06 Mid time of template scan = 0/ 19 52 47.2
ACFIT1 11:32:06 Template: POL: 1 IF: 1 offset of ********* removed
ACFIT1 11:32:06 Template: POL: 1 IF: 2 offset of ********* removed
AIPS 1: ACFIT Task to determine antenna gains from autocorrelations
AIPS 1: Adverbs Values Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: USERID 0 User number
AIPS 1: INNAME 'BG118C CVEL' Input UV file name (name)
AIPS 1: INCLASS 'A/C' Input UV file name (class)
AIPS 1: INSEQ 2 Input UV file name (seq. #)
AIPS 1: INDISK 3 Input UV file disk unit #
AIPS 1:
AIPS 1: Data Selection
AIPS 1: CALSOUR 'BNKL-I' Sources to use to determine
AIPS 1: *rest ' ' gains.
AIPS 1: QUAL -1 Calibrator qualifier -1=>all
AIPS 1: CALCODE ' ' Calibrator code ' '=>all
AIPS 1: SELBAND -1 Bandwidth to select (kHz)
AIPS 1: SELFREQ -1 Frequency to select (MHz)
AIPS 1: FREQID -1 Freq. ID to select.
AIPS 1: TIMERANG *all 0 Time range to select
AIPS 1: SUBARRAY 0 Subarray, 0=>1
AIPS 1: ANTENNAS *all 0 Antennas to select
AIPS 1:
AIPS 1: Template file
AIPS 1: IN2NAME 'BNKL-I' Template UV file name (name)
AIPS 1: IN2CLASS 'TMPLTC' Template UV file name (class)
AIPS 1: IN2SEQ 2 Template UV file name (seq.#)
AIPS 1: IN2DISK 3 Template UV file disk unit #
AIPS 1: REFANT 4 Reference antenna.
AIPS 1: Control options
AIPS 1: DOCALIB 2 > 0 calibrate data & weights
AIPS 1: > 99 do NOT calibrate weights
AIPS 1: GAINUSE 5 CL (or SN) table to apply
AIPS 1: FLAGVER 2 Flag table version
AIPS 1: SOLINT 1 Solution interval
AIPS 1: DOBAND -1 If > 1 apply BP correction
AIPS 1: BPVER 1 BP table version to write
AIPS 1: SMOOTH 1 *rest 0 Smoothing function. See
AIPS 1: HELP SMOOTH for details.
AIPS 1: Does not apply to template
AIPS 1: spectrum.
AIPS 1: BCHAN 100 Start channel for fit 0=>1
AIPS 1: ECHAN 400 Stop channel for fit 0=>all
AIPS 1: APARM 2 2 Control information:
AIPS 1: 1 1 (1) Polynomial degree for
AIPS 1: 0 0 source spectrum baseline
AIPS 1: 0 1 (2) Polynomial degree for
AIPS 1: 0 1 template spect. baseline
AIPS 1: (3) Rpol sensitivity of
AIPS 1: template antenna (Jy/K).
AIPS 1: Use this if only one
AIPS 1: polzn in data.
AIPS 1: (4) Lpol sensitivity of
AIPS 1: template antenna (Jy/K)
AIPS 1: (5) Minimum allowed relative
AIPS 1: gain value, 0 => 0
AIPS 1: (6) Maximum allowed relative
AIPS 1: gain value, 0 => all
AIPS 1: (7) Maximum allowed relative
AIPS 1: gain error, 0 => all
AIPS 1: (8) Print level, 1=> print
AIPS 1: gains.
AIPS 1: (9) >0 => Baseline
AIPS 1: independent fit.
AIPS 1: (10)>0 => write out AC data
AIPS 1: after baseline removed
AIPS 1: BPARM 100 160 Array of start and stop
AIPS 1: 370 400 channel numbers for baseline
AIPS 1: *rest 0 fitting on source spectrum.
AIPS 1: CPARM 100 160 Array of start and stop
AIPS 1: 370 400 channel numbers for baseline
AIPS 1: *rest 0 fitting on template spectrum.
AIPS 1: XPARM 1 1 Array of Rpol Tsys(IF) of
AIPS 1: 1 1 template scan. 0 => 1.0.
AIPS 1: 1 1 Use XPARM if only one polzn
AIPS 1: 1 1 in database.
AIPS 1: 1 1
AIPS 1: YPARM 1 1 Array of Lpol Tsys(IF) of
AIPS 1: 1 1 template scan. 0 => 1.0
AIPS 1: 1 1 1 1
AIPS 1: 1 1
AIPS 1: SNVER 3 Output SN table, 0=>new table
AIPS 1: OUTNAME 'BG118C CVEL' Output UV file name (name)
AIPS 1: OUTCLASS 'ACFIT' Output UV file name (class)
AIPS 1: OUTSEQ 2 Output UV file name (seq. #)
AIPS 1: OUTDISK 3 Output UV file disk unit #
AIPS 1: BADDISK *all 0 Disks to avoid for scratch
More information about the Daip
mailing list