[daip] CALIB

Crystal Brogan cbrogan at nrao.edu
Thu Dec 14 10:48:03 EST 2006


Hi Eric,

Has something significant changed in '07 CALIB?

I have been trying to self-cal a 74 MHz dataset using AIPS07. I finally 
tried '06 because the very poor results I was getting in '07 (almost no 
good solutions) was quite inexplicable given the quality of the 
data/model. On the face of it I would suggest that there is either a VERY
significant bug somewhere or the parameter meanings have changed 
drastically. Maybe it could even be a problem with C'ville install.

Using identical parameters, I get the following results:

07 CALIB:
CALIB1: Task CALIB  (release of 31DEC07) begins
CALIB1: CALIB USING W51_74C      . UVSUB  .   1 DISK=  4 USID=2144
CALIB1: Create W51_74C     .CALIB .   7 (UV)  on disk  4  cno  242
CALIB1: Selecting and editing the data
CALIB1: Doing self-cal mode with CC model
CALIB1: SETGDS: imaging done with reprojected tangent point(s)
CALIB1: FACSET: 220.300247 Jy found from 311 components
CALIB1: QINIT: did a GET  of    1280 Kwords, OFF       -340952189
CALIB1: VISDFT: Begin DFT component division
CALIB1: VISDFT: Model components of type Point
CALIB1: I Polarization model processed
CALIB1: Model computation is    10 percent complete
CALIB1: Model computation is    20 percent complete
CALIB1: Model computation is    30 percent complete
CALIB1: Model computation is    40 percent complete
CALIB1: Model computation is    50 percent complete
CALIB1: Model computation is    60 percent complete
CALIB1: Model computation is    70 percent complete
CALIB1: Model computation is    80 percent complete
CALIB1: Model computation is    90 percent complete
CALIB1: Model computation is   100 percent complete
CALIB1: Field    1 used     108 CCs
CALIB1: Field    2 used       0 CCs
CALIB1: Field    3 used      39 CCs
CALIB1: Field    4 used       2 CCs
CALIB1: Field    5 used      28 CCs
CALIB1: Field    6 used       8 CCs
CALIB1: Field    7 used      27 CCs
CALIB1: Field    8 used       5 CCs
CALIB1: Field    9 used       5 CCs
CALIB1: Field   10 used       2 CCs
CALIB1: Field   11 used      10 CCs
CALIB1: Field   12 used       0 CCs
CALIB1: Field   13 used       0 CCs
CALIB1: Field   14 used      20 CCs
CALIB1: Field   15 used      11 CCs
CALIB1: Field   16 used      21 CCs
CALIB1: Field   17 used       4 CCs
CALIB1: Field   18 used       3 CCs
CALIB1: Field   19 used       4 CCs
CALIB1: Field   20 used      12 CCs
CALIB1: Field   21 used       0 CCs
CALIB1: Field   22 used       2 CCs
CALIB1: Determining solutions
CALIB1: Writing SN table    8
CALIB1: Found          840 good solutions
CALIB1: Failed on     3208 solutions
CALIB1: Average closure rms =  1.2385 +-  0.2238
CALIB1: No data were found >  2.5 rms from solution
CALIB1: Applying solutions to data
CALIB1:            Previously flagged   Flagged by gain         Kept
CALIB1: Partially                85768                   0     26753
CALIB1: Fully                        0               59015         0
CALIB1: Copied AN file from vol/cno/vers  4  140   1 to  4  242   1
CALIB1: Copied WX file from vol/cno/vers  4  140   1 to  4  242   1
CALIB1: Copied OF file from vol/cno/vers  4  140   1 to  4  242   1
CALIB1: Copied FG file from vol/cno/vers  4  140   1 to  4  242   1
CALIB1: Copied FG file from vol/cno/vers  4  140   2 to  4  242   2
CALIB1: Copied FG file from vol/cno/vers  4  140   3 to  4  242   3
CALIB1: Appears to have ended successfully
CALIB1: shadowfax    31DEC07 TST: Cpu=       6.5  Real=       7

06 CALIB:
CALIB2: Task CALIB  (release of 31DEC06) begins
CALIB2: CALIB USING W51_74C      . UVSUB  .   1 DISK=  4 USID=2144
CALIB2: Create W51_74C     .CALIB .   6 (UV)  on disk  4  cno  241
CALIB2: Selecting and editing the data
CALIB2: Doing self-cal mode with CC model
CALIB2: SETGDS: imaging done with reprojected tangent point(s)
CALIB2: FACSET: 220.300247 Jy found from 311 components
CALIB2: VISDFT: Begin DFT component division
CALIB2: VISDFT: Model components of type Point
CALIB2: I Polarization model processed
CALIB2: Model computation is    10 percent complete
CALIB2: Model computation is    20 percent complete
CALIB2: Model computation is    30 percent complete
CALIB2: Model computation is    40 percent complete
CALIB2: Model computation is    50 percent complete
CALIB2: Model computation is    60 percent complete
CALIB2: Model computation is    70 percent complete
CALIB2: Model computation is    80 percent complete
CALIB2: Model computation is    90 percent complete
CALIB2: Model computation is   100 percent complete
CALIB2: Field    1 used     108 CCs
CALIB2: Field    2 used       0 CCs
CALIB2: Field    3 used      39 CCs
CALIB2: Field    4 used       2 CCs
CALIB2: Field    5 used      28 CCs
CALIB2: Field    6 used       8 CCs
CALIB2: Field    7 used      27 CCs
CALIB2: Field    8 used       5 CCs
CALIB2: Field    9 used       5 CCs
CALIB2: Field   10 used       2 CCs
CALIB2: Field   11 used      10 CCs
CALIB2: Field   12 used       0 CCs
CALIB2: Field   13 used       0 CCs
CALIB2: Field   14 used      20 CCs
CALIB2: Field   15 used      11 CCs
CALIB2: Field   16 used      21 CCs
CALIB2: Field   17 used       4 CCs
CALIB2: Field   18 used       3 CCs
CALIB2: Field   19 used       4 CCs
CALIB2: Field   20 used      12 CCs
CALIB2: Field   21 used       0 CCs
CALIB2: Field   22 used       2 CCs
CALIB2: Determining solutions
CALIB2: Writing SN table    7
CALIB2: Found         3218 good solutions
CALIB2: Failed on      830 solutions
CALIB2: Average closure rms =  0.8304 +-  0.1295
CALIB2: Fraction of times having data >  2.5 rms from solution
CALIB2: 0.18056 of the times had  0 -  2 percent outside  2.5 times rms
CALIB2: 0.09028 of the times had  2 -  4 percent outside  2.5 times rms
CALIB2: 0.00694 of the times had  4 -  6 percent outside  2.5 times rms
CALIB2: Applying solutions to data
CALIB2:            Previously flagged   Flagged by gain         Kept
CALIB2: Partially                85768                   0     75245
CALIB2: Fully                        0               10523         0
CALIB2: Copied AN file from vol/cno/vers  4  140   1 to  4  241   1
CALIB2: Copied WX file from vol/cno/vers  4  140   1 to  4  241   1
CALIB2: Copied OF file from vol/cno/vers  4  140   1 to  4  241   1
CALIB2: Copied FG file from vol/cno/vers  4  140   1 to  4  241   1
CALIB2: Copied FG file from vol/cno/vers  4  140   2 to  4  241   2
CALIB2: Copied FG file from vol/cno/vers  4  140   3 to  4  241   3
CALIB2: Appears to have ended successfully
CALIB2: shadowfax    31DEC06 NEW: Cpu=      14.0  Real=      14




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