[daip] AIPS bug - FRING.EXE

[Eric Greisen]

Alasdair Thomson wrote:
> Hi Eric,
> 
> I'm writing to let you know of a serious bug which I think I've picked 
> up with FRING.EXE in the latest MNJ of AIPS, which I obtained at 6am BST.
> 
> This morning I was re-calibrating JVLA data which I've already reduced 
> before, only this time when I ran FRING, I got the following error:
> 
> FRING3: UVGET: doing no flagging this time
> FRING3: WARNING: uncalibrated linear polarization data may be a problem
> AIPS 3: Resumes
>  >FRING3: WARNING: Input int. time (DPARM(4)) is greater than
> FRING3:          than that found in the data.  Please be aware
> FRING3:          that this can cause odd errors.
> FRING3: WARNING: uncalibrated linear polarization data may be a problem
> FRING3: Selecting and calibrating the data
> FRING3: SETGDS: imaging done with reprojected tangent point(s)
> FRING3: Using Clean Component source model
> FRING3: FACSET: source model will be scaled to  0.833 Jy
> FRING3: FACSET: 1.119641 Jy found from 244 components
> FRING3: FACSET: scaling factor set to  7.44279E-01
> FRING3: QINIT: did a GET  of      5120 Kwords, OFF   17502636056431
> FRING3: VISDFT: Begin DFT component division
> FRING3: VISDFT: fields 1 - 1 chns 1 - 1 in 1 CC models
> FRING3: VISDFT: Model components of type Point
> FRING3: I Polarization model processed
> FRING3: GETCTL: MAP STOKES TYPE INCOMPATIBLE WITH UV DATA
> FRING3: KSTOK=    1, ICOR0=   -5, NCOR=    1
> FRING3: Purports to die of UNNATURAL causes
> FRING3: wardlaw 31DEC12 TST: Cpu=      0.2  Real=      0  IO=       466
> 
> My inputs for FRING are at the bottom of the email. To investigate the 
> problem, I re-loaded the old version of FRING I was using yesterday and 
> placed it in the appropriate folder, and the problem seems to have gone 
> away.

Thanks for the heads up - I finally got to it today.  I forgot to 
re-compile some things that were indirectly affected by a change made 
Friday.  I have rebuild everything and a MNJ now should repair all the 
damage (I hope).

Eric Greisen