[daip] Strange SN table generated by FRING
Amy Mioduszewski
amiodusz at nrao.edu
Thu Apr 22 10:51:31 EDT 2010
In the last few days others have reported similar FRING oddities, we are looking
at it.
Amy
ljuan wrote:
> Dear Sirs or Madams,
>
> Hello, I have a problem with FRING. I want to use one scan on a strong calibrator to do phase calibration to align all bands by removing a delay and phase from each IF. The timerang of FRING is 0 11 01 23 0 11 04 35 and the solint is 4. The timerang is less than 4 min, but there're 2 epochs for solution:
>
> ****************************
>
> localh> FRING1: Task FRING (release of 31DEC09) begins
> localh> FRING1: You are using a non-standard program
> localh> FRING1: Doing no flagging this time
> localh> FRING1: Selecting and calibrating the data
> localh> FRING1: Dividing data by source flux densities
> localh> FRING1: Determining solutions
> localh> FRING1: Writing SN table 3
> localh> FRING1: Time= 0/ 11 03 01, Polarization = 1
> localh> FRING1: QINIT: did a GET of 5120 Kwords, OFF -383025957
> localh> FRING1: Time= 0/ 11 03 01, Polarization = 2
> localh> FRING1: Time= 0/ 11 04 35, Polarization = 1
> localh> FRING1: Time= 0/ 11 04 35, Polarization = 2
> localh> FRING1: Found 22 good solutions
> localh> FRING1: Failed on 16 solutions
> localh> FRING1: Adjusting solutions to a common reference antenna
> localh> FRING1: Appears to have ended successfully
>
> ****************************
>
> The output SN table of FRING is strange, row 11-19 is INDE:
>
> ****************************
>
> localhos PRTAB(31DEC09) 2 20-APR-2010 10:06:43 Page 1
> BR129DB .LING31. 1 Disk= 2 SN Table version 3
> Title: AIPS UV DATA FILE SOLUTION TABLE
> Created by FRING on 16-APR-2010 17:58:31
> Last written by FRING on 20-APR-2010 09:44:23
> Ncol 22 Nrow 19 Sort cols: 1 (ASCEND) 4 (ASCEND)
> Table has 8 keyword-value pairs:
> NO_ANT = 10
> NO_POL = 2
> NO_IF = 1
> NO_NODES = 0
> MGMOD = 1.0000000000000D+00
> APPLIED = T
> REVISION = 10
> ORIGIN = 0
> Table can be written as a FITS ASCII table
>
> COL. NO. 1 2 3 4 5 6 7 8 9 10 11
> ROW TIME TIME INTER SOURCE ID ANTENNA SUBARRAY FREQ ID I.FAR.ROT NODE NO. MBDELAY1 REAL1 IMAG1
> NUMBER D/HMS D/HMS RAD/M**2 SECONDS
> 1 11:03:01.3 00:03:05.6 11 1 1 1 0.000E+00 0 0.000E+00 1.662E-01 -9.861E-01
> 2 11:03:01.3 00:03:05.6 11 2 1 1 0.000E+00 0 0.000E+00 -6.582E-01 7.528E-01
> 3 11:03:01.3 00:03:05.6 11 3 1 1 0.000E+00 0 0.000E+00 9.998E-01 1.732E-02
> 4 11:03:01.3 00:03:05.6 11 4 1 1 0.000E+00 0 0.000E+00 -6.642E-01 -7.475E-01
> 5 11:03:01.3 00:03:05.6 11 5 1 1 0.000E+00 0 0.000E+00 -8.225E-01 5.687E-01
> 6 11:03:01.3 00:03:05.6 11 6 1 1 0.000E+00 0 0.000E+00 8.552E-01 5.183E-01
> 7 11:03:01.3 00:03:05.6 11 7 1 1 0.000E+00 0 0.000E+00 -5.896E-01 8.077E-01
> 8 11:03:01.3 00:03:05.6 11 8 1 1 0.000E+00 0 0.000E+00 5.069E-02 -9.987E-01
> 9 11:03:01.3 00:03:05.6 11 9 1 1 0.000E+00 0 0.000E+00 1.000E+00 0.000E+00
> 10 11:03:01.3 00:03:05.6 11 10 1 1 0.000E+00 0 0.000E+00 9.975E-01 -7.024E-02
> 11 11:04:34.9 00:00:00.0 11 1 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 12 11:04:34.9 00:00:00.0 11 2 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 13 11:04:34.9 00:00:00.0 11 3 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 14 11:04:34.9 00:00:00.0 11 4 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 15 11:04:34.9 00:00:00.0 11 5 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 16 11:04:34.9 00:00:00.0 11 6 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 17 11:04:34.9 00:00:00.0 11 8 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 18 11:04:34.9 00:00:00.0 11 9 1 1 0.000E+00 0 0.000E+00 INDE INDE
> 19 11:04:34.9 00:00:00.0 11 10 1 1 0.000E+00 0 0.000E+00 INDE INDE
> Type Q to stop, just hit RETURN to continue
>
> localhos PRTAB(31DEC09) 2 20-APR-2010 10:07:41 Page 2
> COL. NO. 12 13 14 15 16 17 18 19 20 21
> ROW DELAY 1 RATE 1 WEIGHT 1 REFANT 1 MBDELAY2 REAL2 IMAG2 DELAY 2 RATE 2 WEIGHT 2
> NUMBER SECONDS SEC/SEC SECONDS SECONDS SEC/SEC
> 1 4.421E-09 0.000E+00 8.079E+01 9 0.000E+00 -7.153E-01 6.989E-01 -2.912E-09 0.000E+00 8.184E+01
> 2 1.820E-08 0.000E+00 6.998E+01 9 0.000E+00 9.660E-01 2.585E-01 2.502E-08 0.000E+00 7.327E+01
> 3 -2.462E-08 0.000E+00 8.428E+01 9 0.000E+00 7.817E-01 -6.237E-01 1.442E-08 0.000E+00 8.569E+01
> 4 1.644E-08 0.000E+00 7.161E+01 9 0.000E+00 -9.748E-01 -2.229E-01 1.762E-08 0.000E+00 8.067E+01
> 5 1.140E-08 0.000E+00 7.139E+01 9 0.000E+00 -5.232E-01 8.522E-01 -1.148E-08 0.000E+00 7.164E+01
> 6 -3.234E-08 0.000E+00 7.901E+01 9 0.000E+00 8.904E-01 4.552E-01 -3.732E-08 0.000E+00 8.062E+01
> 7 -9.394E-09 0.000E+00 8.207E+01 9 0.000E+00 -7.973E-01 -6.036E-01 1.579E-08 0.000E+00 8.419E+01
> 8 -2.075E-08 0.000E+00 8.152E+01 9 0.000E+00 9.239E-01 3.826E-01 -3.120E-08 0.000E+00 8.433E+01
> 9 0.000E+00 0.000E+00 6.000E+00 9 0.000E+00 1.000E+00 0.000E+00 0.000E+00 0.000E+00 6.000E+00
> 10 4.812E-08 0.000E+00 7.404E+01 9 0.000E+00 9.965E-01 8.372E-02 5.344E-08 0.000E+00 7.470E+01
> 11 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 12 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 13 INDE INDE 6.000E+00 9 0.000E+00 INDE INDE INDE INDE 6.000E+00
> 14 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 15 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 16 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 17 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 18 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
> 19 INDE INDE 0.000E+00 9 0.000E+00 INDE INDE INDE INDE 0.000E+00
>
> ****************************
>
> Half data would be "flagged by gain" while applying this SN table to the data. Could you tell me what's the meaning of INDE and what's the possible reason for generating such a SN table? Why half data is flagged while applying this SN table? Thanks in advance!
>
> Regards,
> Juan Li
>
>
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