[daip] weird

[Eric Greisen]

On 12/01/2016 10:34 AM, Lawrence Rudnick wrote:
> I have a very strange problem, using 30DEC15, linux.
>
> 1)  i do a getn and another map comes up in qh.  this happened again
> after logging out and then back in. both TRANS1 and TRANS2 (temp files
> from DOFARS) have READ status when i do the subim.  the subim itself
> seems to have worked, in other words doing a subim of TRANS1, yields a
> map with the same min and max values as the original subim, so i'm
> assuming it's right, even though qh reports a different map (along with
> that maps min and max and stokes axis).
>
>
>  >getn 32
> AIPS 3: Got(1)   disk= 3  user=2255   type=MA   A2255_C.TRANS1.1
>  >qh
> AIPS 3: Image=A2255_ce  (MA)         Filename=A2255_C     .TRANS2.   1
> AIPS 3: Magic value blanking
> AIPS 3: Minimum=  -3.9202            Maximum=   3.8107 MilliJy/beam
> AIPS 3: --------------------------------------------------------------
> AIPS 3: Type    Pixels   Coord value  at Pixel    Coord incr   Rotat
> AIPS 3: FQID       111    5.600000E+01      56*   1.0000E+00    0.00
> AIPS 3: RA---SIN  2304    17 12 42.153    1152*       -1.000    0.00
> AIPS 3: DEC--SIN  2800    64 09 43.000    1400*        1.000    0.00
> AIPS 3: STOKES       1    UPOL               1*       1.0000    0.00
> AIPS 3: FREQ         1    1.011500E+09       1    8.0050E+06    0.00
> AIPS 3: --------------------------------------------------------------
> AIPS 3: Map type=DIRTY               Number of iterations=       0
> AIPS 3: Conv size=   7.00 X   7.00   Position angle=   0.00
> AIPS 3: Max ext file #: HI   1    FQ   1
> AIPS 3: * => NOT the formal reference pixel on this axis

Somehow the header for TRANS2 was written to the catalog number of 
TRANS1.  This can happen due to program error.  However, DOFARS and FARS 
et al. have not changed in quite a while.  If this does not happen every 
time you use DOFARS then I am unsure what to reccomend.  If it does 
happen every time or a good fraction of the time, let me know and I will 
see about debugging.

Eric Greisen