[daip] UVFLG
Leonia Kogan
lkogan at aoc.nrao.edu
Thu Oct 6 19:01:19 EDT 2005
Jim,
I think the problem is small/capital leters.
Type REASON = ' System idle without the 'sign at the end of the line
Then the reason will appear with the right sequence of small/capital
leter and UVFLG will work (I hope)
Leonia
Jim Ulvestad wrote:
> I've gone ahead and changed the FG table by cheating and using TABED.
> The original flag table that I can't change is FG 1 in the following
> data set.
> Note that the reason that shows up in the flag table is System idle,
> not all
> upper case. I have tried running UVFLG with the mixed upper and lower
> case and with all lower case.
>
> The rows I tried to change in the FG table are rows 352, 393, 745,
> 837, and 1178.
> (In FG 2, note that PFLAG is 0000 and not 1111 for these rows, because
> I changed them using TABED.)
>
> Flag table 1 can be found at /DATA/COYOTE_1/FITS/BU30A.FGTABLE.
>
> AIPS 1: Image=MULTI (UV) Filename=BU030A .FXPOL . 1
> AIPS 1: Telescope=VLBA Receiver=VLBA
> AIPS 1: Observer=BU030 User #= 145
> AIPS 1: Observ. date=26-FEB-2005 Map date=06-SEP-2005
> AIPS 1: # visibilities 918247 Sort order TB
> AIPS 1: Rand axes: UU-L-SIN VV-L-SIN WW-L-SIN TIME1 BASELINE
> AIPS 1: SOURCE FREQSEL INTTIM GATEID CORR-ID WEIGHT
> AIPS 1: SCALE
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Type Pixels Coord value at Pixel Coord incr Rotat
> AIPS 1: COMPLEX 1 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 32 4.9714900E+09 0.56 2.5000000E+05 0.00
> AIPS 1: IF 4 1.0000000E+00 1.00 1.0000000E+00 0.00
> AIPS 1: RA 1 00 00 00.000 1.00 0.000000 0.00
> AIPS 1: DEC 1 00 00 00.000 1.00 0.000000 0.00
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Coordinate equinox 2000.00
> AIPS 1: Maximum version number of extension files of type CL is 8
> AIPS 1: Maximum version number of extension files of type NX is 1
> AIPS 1: Maximum version number of extension files of type IM is 1
> AIPS 1: Maximum version number of extension files of type CT is 1
> AIPS 1: Maximum version number of extension files of type MC is 1
> AIPS 1: Maximum version number of extension files of type OB is 1
> AIPS 1: Maximum version number of extension files of type GC is 1
> AIPS 1: Maximum version number of extension files of type WX is 1
> AIPS 1: Maximum version number of extension files of type TY is 1
> AIPS 1: Maximum version number of extension files of type PC 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 AN 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 CQ is 1
> AIPS 1: Maximum version number of extension files of type FG is 3
> AIPS 1: Maximum version number of extension files of type HI is 1
> AIPS 1: Maximum version number of extension files of type SN is 6
> AIPS 1: Maximum version number of extension files of type PL is 6
> AIPS 1: Keyword = 'OLDRFQ ' value = 4.97149000D+09
> AIPS 1: Keyword = 'SUBARRAY' value = 1
>
> AIPS 1: UVFLG: Task to Flag selected UV data on disk.
> AIPS 1: Adverbs Values Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME 'BU030A ' UV data (name).
> AIPS 1: INCLASS 'FXPOL ' UV data (class).
> AIPS 1: INSEQ 1 UV data (seq. #). 0 => high
> AIPS 1: INDISK 2 Disk unit #. 0 => any
> AIPS 1: INFILE *all ' ' Text file name.
> AIPS 1: SOURCES *all ' ' Sources selected/deselected
> AIPS 1: SUBARRAY 0 Subarray number 0=>all.
> AIPS 1: SELBAND -1 Bandwidth to flag (kHz)
> AIPS 1: SELFREQ -1 Frequency to flag (MHz)
> AIPS 1: FREQID -1 Freq. ID to flag. -1=>all.
> AIPS 1: 0=> first Freq. ID.
> AIPS 1: TIMERANG *all 0 Time: start day,hr,min,sec
> AIPS 1: stop day,hr,min,sec.
> AIPS 1: BCHAN 0 First frequency channel
> AIPS 1: ECHAN 0 Last channel 0=>all
> AIPS 1: BIF 0 First IF 0=>1
> AIPS 1: EIF 0 Last IF 0=>all
> AIPS 1: ANTENNAS 12 *rest 0 Antennas
> AIPS 1: BASELINE *all 0 Baselines with ANTENNAS
> AIPS 1: STOKES ' ' Stokes' parameters
> AIPS 1: FLAGVER 1 Flag table version number
> AIPS 1: Used w single-source too
> AIPS 1: APARM *all 0 Clip on ampl. and weight
> AIPS 1: (single source data only)
> AIPS 1: 1:lower limit of amplitude
> AIPS 1: 2:upper limit of amplitude
> AIPS 1: 0 => use defaults
> AIPS 1: sign is significant!
> AIPS 1: 3:limit of weight
> AIPS 1: The data with ampl. outside
> AIPS 1: of a given range or weight
> AIPS 1: less the given value are
> AIPS 1: flagged (unflagged)
> AIPS 1: Elevation flagging
> AIPS 1: 4:elevation lower cutoff deg
> AIPS 1: 5:elevation upper cutoff deg
> AIPS 1: 6:Factor of suppression of
> AIPS 1: spurious fringes caused by
> AIPS 1: pulse cal when fringe
> AIPS 1: rate close to zero.
> AIPS 1: It must be >1
> AIPS 1: 0 => do not flag due to
> AIPS 1: this reason
> AIPS 1: 7:>0 => Print source, time,
> AIPS 1: baseline, U,V of expected
> AIPS 1: zero fringe rate (U=0)
> AIPS 1: 0 => do not print
> AIPS 1: APARM=0 => flagging(unflag.)
> AIPS 1: does not depend on APARM
> AIPS 1: OPCODE 'REAS' 'FLAG','UFLG' or 'REAS'
> AIPS 1: REASON 'System idle Reason (24 char.)
> AIPS 1: '
> AIPS 1: BDROP 0 First vis. no. to flag
> AIPS 1: (not with flag tables)
> AIPS 1: EDROP 0 Last vis. no. to flag
> AIPS 1: (not with flag tables)
> AIPS 1: DOHIST 1 > 0 -> add to history
>
>
>
> Leonia Kogan wrote:
>
>> As I understand, UVFLG (opcode='reas) should unflag all rows at the
>> given FG table which
>> include the 'reason' coincided (at all 24 characters) with the given
>> REASON.
>>
>> All other parameters including an antenna numbers are not used.
>>
>> Can you send me:
>>
>> List of input parameters
>> imh of the UV data,
>> and the FG table print out
>>
>> Leonia
>>
>>
>>
>> Jim Ulvestad wrote:
>>
>>> Hi all,
>>>
>>> The unflag option in UVFLG (opcode 'reas') doesn't appear to be very
>>> robust.
>>> Claire tells me that it only works for data that were already flagged
>>> in UVFLG, which is certainly my experience--I can't unflag data in
>>> a flag table delivered from the VLBA correlator, using an antenna
>>> number and a reason, with basically all other inputs defaulting.
>>> There is no indication in the help file that I need to set other
>>> parameters,
>>> such as TIMERANG. If this is known behavior, perhaps it ought to be
>>> in the help file. If it's not known behavior, perhaps it is a bug
>>> or an
>>> incompetent user. (I got a PI letter from the analysts that said an
>>> hour of
>>> data was improperly flagged and should be unflagged, but apparently it
>>> isn't so easy!!!)
>>>
>>> Thanks again,
>>>
>>> Jim
>>>
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>>>
>
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