[daip] UVFLG
Jim Ulvestad
julvesta at aoc.nrao.edu
Fri Oct 7 11:09:02 EDT 2005
Leonia, Based on your note and Eric's, I will try a few more
tests myself to see if I can make it work. This will probably
not be until this afternoon, since I have other things to take
care of this morning.
Jim
Leonia Kogan wrote:
> Hm, It works with my data.
>
> Can you TASAV your data and create the FITS file of the tasaved data.
> I'll debug UVFLG with these data.
>
> Leonia
>
> Jim Ulvestad wrote:
>
>> I did 'System idle
>>
>> as you suggest and it didn't work.
>>
>> Jim
>>
>> Leonia Kogan wrote:
>>
>>> 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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