[daip] (no subject)
Eric Greisen
egreisen at nrao.edu
Mon Feb 24 11:05:29 EST 2003
Al writes:
I found this message and no record of a reply - sorry for the delay.
> After running global FRING I got some message
> lines I do not quite understand because the SUBARRAY parameter was set to 0.
The Subarray must be specified and 0 is replaced inside the code
with 1.
>
> *****************************************************************
> .....
> localh> FRING1: Standard RMS errors (deg, mHz, nsec):
> localh> FRING1: Ant(02): Phas= 0.79 rate= 0.069 delay= 1.201
> localh> FRING1: Ant(03): Phas= 1.18 rate= 0.104 delay= 1.802
> localh> FRING1: Ant(04): Phas= 3.57 rate= 0.272 delay= 4.898
> localh> FRING1: Ant(05): Phas= 3.42 rate= 0.310 delay= 5.094
> localh> FRING1: Ant(06): Phas= 0.90 rate= 0.078 delay= 2.630
> localh> FRING1: Found 508 good solutions
> localh> FRING1: Failed on 718 solutions
> localh> FRING1: Adjusting solutions to a common reference antenna
> localh> FRING1: CALREF: CAN NOT RELATE ANTENNA 2 TO 1 IN SUBARRAY 1
> localh> FRING1: Some solutions were not adjusted to the common
> localh> FRING1: reference antenna. This may be because one or more
> localh> FRING1: antennas were not used. Check your data before
> localh> FRING1: proceeding.
> localh> FRING1: Appears to have ended successfully
> localh> FRING1: localhost 31DEC01 TST: Cpu= 1333.2 Real= 1475
>
> **************************************************************
It would appear that antenna 1 was not observed in this subarray, or
that all solutions to antenna 1 failed. Antenna 2 was used as the
reference antenna instead - a perfectly acceptable solution. What
appears less desirable is that > 1/2 of all solutions failed.
I do not know what other adverb sets you have used. I am a great
believer in using the defaults for things initially and for asking for
all diagnostic printout I can get when things are not going well.
Perhaps others in the group (who know VLBI better than me) have other
suggestions.
Eric Greisen
> What may be the problem?
> The input parameter for the FRING were as folows:
>
> AIPS 1: FRING: Task to fringe fit data
> AIPS 1: Adverbs Values Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: Input uv data.
> AIPS 1: INNAME 'INTAS ' UV file name (name)
> AIPS 1: INCLASS 'MSORT ' UV file name (class)
> AIPS 1: INSEQ 1 UV file name (seq. #)
> AIPS 1: INDISK 1 UV file disk drive #
> AIPS 1: Data selection (multisource):
> AIPS 1: CALSOUR 'DA193 ' Calibrator sources
> AIPS 1: *rest ' '
> 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 use.
> AIPS 1: BCHAN 20 Lowest channel number 0=>all
> AIPS 1: ECHAN 230 Highest channel number
> AIPS 1: ANTENNAS *all 0 Antennas to select. 0=all
> AIPS 1: DOFIT *all 0 Subset of ANTENNAS list
> AIPS 1: for which solns are desired.
> AIPS 1: 0 => all in ANTENNAS
> AIPS 1: < 0 => all not in DOFIT list
> AIPS 1: SUBARRAY 0 Subarray, 0=>all
> AIPS 1: UVRANGE 0 0 Range of uv distance for full
> AIPS 1: weight
> AIPS 1: WTUV 0 Weight outside UVRANGE 0=0.
> AIPS 1:
> AIPS 1: Cal. info for input:
> AIPS 1: DOCALIB 2 If >0 calibrate data
> AIPS 1: = 2 calibrate weights
> AIPS 1: GAINUSE 4 CL table to apply.
> AIPS 1: FLAGVER 2 Flag table version
> AIPS 1: DOBAND -1 If >0 apply bandpass cal.
> AIPS 1: Method used depends on value
> AIPS 1: of DOBAND (see HELP file).
> AIPS 1: BPVER -1 Bandpass table version
> AIPS 1: SMOOTH *all 0 Smoothing function. See
> AIPS 1: HELP SMOOTH for details.
> AIPS 1:
> AIPS 1: CLEAN map (optional)
> AIPS 1: IN2NAME ' ' Cleaned map name (name)
> AIPS 1: IN2CLASS ' ' Cleaned map name (class)
> AIPS 1: IN2SEQ 0 Cleaned map name (seq. #)
> AIPS 1: IN2DISK 0 Cleaned map disk unit #
> AIPS 1: INVERS 0 CC file version #.
> AIPS 1: NCOMP *all 0 # comps to use for model.
> AIPS 1: 1 value per field
> AIPS 1: FLUX 0 Lowest CC component used.
> AIPS 1: NMAPS 0 No. Clean map files
> AIPS 1: CMETHOD ' ' Modeling method:
> AIPS 1: 'DFT','GRID',' '
> AIPS 1: SMODEL *all 0 Source model, 1=flux,2=x,3=y
> AIPS 1: See HELP SMODEL for models.
> AIPS 1:
> AIPS 1: Output uv data file.
> AIPS 1: OUTNAME 'INTAS ' UV file name (name)
> AIPS 1: OUTCLASS 'FRING ' UV file name (class)
> AIPS 1: OUTSEQ 1 UV file name (seq. #)
> AIPS 1: OUTDISK 1 UV file disk drive #
> AIPS 1:
> AIPS 1: Solution control adverbs:
> AIPS 1: REFANT 1 Reference antenna
> AIPS 1: SEARCH 1 2 Prioritized reference antenna
> AIPS 1: 3 5 list - supplements REFANT
> AIPS 1: 6 4 - but only if APARM(9)>0
> AIPS 1: 0 0 0 0
> AIPS 1: SOLINT 4 Solution interval (min)
> AIPS 1: 0 => 10 min
> AIPS 1:
> AIPS 1: APARM 2 0 General parameters
> AIPS 1: 0 0 1=min. no. antennas
> AIPS 1: 0 1 2 > 0 => data divided
> AIPS 1: 0 0 3 > 0 => avg. RR,LL
> AIPS 1: 1 0 4 > 0 => avg. freq. in IFs
> AIPS 1: 5 > 0 => combine IFs.
> AIPS 1: 6=print level, 1=some
> AIPS 1: 7=SNR cutoff (0=>5)
> AIPS 1: 8=max. ant. # (no AN)
> AIPS 1: 9 > 0 => do exhaustive
> AIPS 1: baseline search
> AIPS 1: DPARM 1 400 Delay-rate parameters
> AIPS 1: 60 2 1=no. bl combo. (def=3)
> AIPS 1: *rest 0 2=delay win (nsec), if <0
> AIPS 1: no delay search done
> AIPS 1: 3=rate win (mHz)
> AIPS 1: 4=int. time (sec)
> AIPS 1: 0 => min. found in data
> AIPS 1: 5 >0 => don't do ls. soln
> AIPS 1: 6 >0 => don't avg. in freq
> AIPS 1: 7 >0 => don't rereference
> AIPS 1: phase
> AIPS 1: 8 > 0 => activate zero'ing
> AIPS 1: options
> AIPS 1: SNVER 4 Output SN table, 0=>new table
> AIPS 1: ANTWT *all 0 Ant. weights (0=>1.0)
> AIPS 1: BADDISK *all 0 Disk no. not to use for
> AIPS 1: scratch files.
>
>
>
>
> Thanks,
>
> Alexander
>
>
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> <DIV><FONT face="Arial Cyr" size=2>Dear Sir/Madam,</FONT></DIV>
> <DIV><FONT face="Arial Cyr" size=2></FONT> </DIV>
> <DIV><FONT face="Arial Cyr" size=2>After running global FRING I got some
> message<BR>lines I do not quite understand because the SUBARRAY parameter
> was set to 0.</FONT></DIV>
> <DIV><FONT size=2></FONT> </DIV>
> <DIV><FONT
> size=2>*****************************************************************</FONT></DIV>
> <DIV><FONT size=2>.....</FONT></DIV>
> <DIV>localh> FRING1: Standard RMS errors (deg, mHz, nsec):<BR>localh>
> FRING1: Ant(02): Phas= 0.79 rate= 0.069
> delay= 1.201<BR>localh> FRING1: Ant(03): Phas=
> 1.18 rate= 0.104 delay=
> 1.802<BR>localh> FRING1: Ant(04): Phas= 3.57
> rate= 0.272 delay=
> 4.898<BR>localh> FRING1: Ant(05): Phas= 3.42
> rate= 0.310 delay=
> 5.094<BR>localh> FRING1: Ant(06): Phas= 0.90
> rate= 0.078 delay=
> 2.630<BR>localh> FRING1: Found 508 good
> solutions<BR>localh> FRING1: Failed on 718
> solutions<BR>localh> FRING1: Adjusting solutions to a common reference
> antenna<BR>localh> FRING1: CALREF: CAN NOT RELATE ANTENNA 2 TO 1
> IN SUBARRAY 1<BR>localh> FRING1: Some solutions were not adjusted to
> the common<BR>localh> FRING1: reference antenna. This may be because one or
> more<BR>localh> FRING1: antennas were not used. Check your data
> before<BR>localh> FRING1: proceeding.<BR>localh> FRING1: Appears to have
> ended successfully<BR>localh> FRING1: localhost 31DEC01
> TST: Cpu= 1333.2 Real=
> 1475<BR><BR>**************************************************************<BR><BR><FONT
> face="Arial Cyr" size=2>What may be the problem?</FONT></DIV>
> <DIV><FONT face="Arial Cyr" size=2>The input parameter for the FRING were as
> folows:</FONT></DIV>
> <DIV> </DIV>
> <DIV><FONT face="Arial Cyr" size=2>AIPS 1: FRING: Task to fringe fit
> data<BR>AIPS 1: Adverbs
> Values
> Comments<BR>AIPS 1:
> ----------------------------------------------------------------<BR>AIPS
> 1:
> Input uv data.<BR>AIPS 1: INNAME
> 'INTAS
> ' UV
> file name (name)<BR>AIPS 1: INCLASS 'MSORT
> '
> UV file name (class)<BR>AIPS 1:
> INSEQ
> 1
> UV file name (seq. #)<BR>AIPS 1:
> INDISK
> 1
> UV file disk drive #<BR>AIPS
> 1:
> Data selection (multisource):<BR>AIPS 1: CALSOUR
> 'DA193
> ' Calibrator sources<BR>AIPS
> 1: *rest '
> '<BR>AIPS 1: QUAL
> -1
> Calibrator qualifier -1=>all<BR>AIPS 1: CALCODE
> '
> '
> Calibrator code ' '=>all<BR>AIPS 1:
> SELBAND
> -1
> Bandwidth to select (kHz)<BR>AIPS 1: SELFREQ
> -1
> Frequency to select (MHz)<BR>AIPS 1: FREQID
> -1
> Freq. ID to select.<BR>AIPS 1: TIMERANG *all
> 0
> Time range to use.<BR>AIPS 1: BCHAN
> 20
> Lowest channel number 0=>all<BR>AIPS 1:
> ECHAN
> 230
> Highest channel number<BR>AIPS 1: ANTENNAS *all
> 0
> Antennas to select. 0=all<BR>AIPS 1: DOFIT *all
> 0
> Subset of ANTENNAS list<BR>AIPS
> 1:
> for which solns are desired.<BR>AIPS
> 1:
> 0 => all in ANTENNAS<BR>AIPS
> 1:
> < 0 => all not in DOFIT list<BR>AIPS 1:
> SUBARRAY
> 0
> Subarray, 0=>all<BR>AIPS 1: UVRANGE
> 0
> 0 Range of uv distance for
> full<BR>AIPS
> 1:
> weight<BR>AIPS 1: WTUV
> 0
> Weight outside UVRANGE 0=0.<BR>AIPS 1:<BR>AIPS
> 1:
> Cal. info for input:<BR>AIPS 1: DOCALIB
> 2
> If >0 calibrate data<BR>AIPS
> 1:
> = 2 calibrate weights<BR>AIPS 1: GAINUSE
> 4
> CL table to apply.<BR>AIPS 1: FLAGVER
> 2
> Flag table version<BR>AIPS 1: DOBAND
> -1
> If >0 apply bandpass cal.<BR>AIPS
> 1:
> Method used depends on value<BR>AIPS
> 1:
> of DOBAND (see HELP file).<BR>AIPS 1:
> BPVER
> -1
> Bandpass table version<BR>AIPS 1: SMOOTH *all
> 0
> Smoothing function. See<BR>AIPS
> 1:
> HELP SMOOTH for details.<BR>AIPS 1:<BR>AIPS
> 1:
> CLEAN map (optional)<BR>AIPS 1: IN2NAME
> '
> '
> Cleaned map name (name)<BR>AIPS 1: IN2CLASS
> '
> '
> Cleaned map name (class)<BR>AIPS 1:
> IN2SEQ
> 0
> Cleaned map name (seq. #)<BR>AIPS 1: IN2DISK
> 0
> Cleaned map disk unit #<BR>AIPS 1:
> INVERS
> 0
> CC file version #.<BR>AIPS 1: NCOMP *all
> 0
> # comps to use for model.<BR>AIPS
> 1:
> 1 value per field<BR>AIPS 1:
> FLUX
> 0
> Lowest CC component used.<BR>AIPS 1:
> NMAPS
> 0
> No. Clean map files<BR>AIPS 1: CMETHOD '
> '
> Modeling method:<BR>AIPS
> 1:
> 'DFT','GRID',' '<BR>AIPS 1: SMODEL
> *all
> 0
> Source model, 1=flux,2=x,3=y<BR>AIPS
> 1:
> See HELP SMODEL for models.<BR>AIPS 1:<BR>AIPS
> 1:
> Output uv data file.<BR>AIPS 1: OUTNAME
> 'INTAS
> ' UV
> file name (name)<BR>AIPS 1: OUTCLASS 'FRING
> '
> UV file name (class)<BR>AIPS 1: OUTSEQ
> 1
> UV file name (seq. #)<BR>AIPS 1: OUTDISK
> 1
> UV file disk drive #<BR>AIPS 1:<BR>AIPS
> 1:
> Solution control adverbs:<BR>AIPS 1:
> REFANT
> 1
> Reference antenna<BR>AIPS 1: SEARCH
> 1
> 2 Prioritized reference
> antenna<BR>AIPS
> 1:
> 3
> 5 list - supplements REFANT<BR>AIPS
> 1:
> 6
> 4 - but only if APARM(9)>0<BR>AIPS
> 1:
> 0
> 0
> 0 0<BR>AIPS 1:
> SOLINT 4
> Solution interval (min)<BR>AIPS
> 1:
> 0 => 10 min<BR>AIPS 1:<BR>AIPS 1:
> APARM
> 2
> 0 General parameters<BR>AIPS
> 1:
> 0
> 0 1=min. no.
> antennas<BR>AIPS
> 1:
> 0
> 1 2 > 0 =>
> data divided<BR>AIPS
> 1:
> 0
> 0 3 > 0 =>
> avg. RR,LL<BR>AIPS
> 1:
> 1
> 0 4 > 0 =>
> avg. freq. in IFs<BR>AIPS
> 1:
> 5 > 0 => combine IFs.<BR>AIPS
> 1:
> 6=print level, 1=some<BR>AIPS
> 1:
> 7=SNR cutoff (0=>5)<BR>AIPS
> 1:
> 8=max. ant. # (no AN)<BR>AIPS
> 1:
> 9 > 0 => do exhaustive<BR>AIPS
> 1:
> baseline search<BR>AIPS 1: DPARM
> 1
> 400 Delay-rate parameters<BR>AIPS
> 1:
> 60
> 2 1=no. bl combo.
> (def=3)<BR>AIPS
> 1: *rest
> 0
> 2=delay win (nsec), if <0<BR>AIPS
> 1:
> no delay search done<BR>AIPS
> 1:
> 3=rate win (mHz)<BR>AIPS
> 1:
> 4=int. time (sec)<BR>AIPS
> 1:
> 0 => min. found in data<BR>AIPS
> 1:
> 5 >0 => don't do ls. soln<BR>AIPS
> 1:
> 6 >0 => don't avg. in freq<BR>AIPS
> 1:
> 7 >0 => don't rereference<BR>AIPS
> 1:
> phase<BR>AIPS
> 1:
> 8 > 0 => activate zero'ing<BR>AIPS
> 1:
> options<BR>AIPS 1: SNVER
> 4
> Output SN table, 0=>new table<BR>AIPS 1: ANTWT
> *all
> 0
> Ant. weights (0=>1.0)<BR>AIPS 1: BADDISK *all
> 0
> Disk no. not to use for<BR>AIPS
> 1:
> scratch files.</FONT></DIV>
> <DIV> </DIV>
> <DIV><FONT face="Arial Cyr" size=2></FONT> </DIV>
> <DIV> </DIV><FONT face="Arial Cyr" size=2>
> <DIV><BR>Thanks,</DIV>
> <DIV><FONT face="Arial Cyr"></FONT> </DIV>
> <DIV>Alexander</DIV>
> <DIV><FONT face="Arial Cyr"></FONT> </DIV>
> <DIV><FONT face="Arial Cyr"></FONT></FONT> </DIV></BODY></HTML>
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