[daip] [Fwd: BB255CB and CD]

[Andreas Brunthaler]

Hi Amy,

it is pass 4 (the only one with only 16 channels). The files are:

BB255CB/BB255CB_4_HPOL4IF8MHZ16CH_22.197GHZ00
BB255CD/BB255CD_4_HPOL4IF8MHZ16CH_22.197GHZ00

Thanks,
Andreas


Amy Mioduszewski wrote:
> Hi Andreas,
> 
> I am going to try to download your data and reproduce your problem. 
> Which pass were you doing?
> 
> Thanks,
> 
> Amy
> 
> Andreas Brunthaler wrote:
> 
>> Dear Eric,
>>
>> Eric Greisen wrote:
>>
>>>> Dear Analysts,
>>>>
>>>> I have downloaded the data from BB255CB and CD today from  the archive
>>>> (the 16 channel pass). When I try to load the two datasets with fitld
>>>> and doconcat 1 I get the following error:
>>>>
>>>> PC2004> FITLD1: Task FITLD  (release of 31DEC09) begins
>>>> PC2004> FITLD1: MISMATCH           6           2  AXIS COUNT
>>>> PC2004> FITLD1: ERROR      1 RETURNED FROM UVFHDR
>>>> PC2004> FITLD1: Purports to die of UNNATURAL causes
>>>> PC2004> FITLD1: pc20045      31DEC09 TST: Cpu=       0.0  Real=       0
>>>>
>>>> The headers are almost identical:
>>>>
>>>> AIPS 1: Image=MULTI     (UV)         Filename=BB255C      .FXPOL .   1
>>>> AIPS 1: Telescope=VLBA               Receiver=
>>>> AIPS 1: Observer=BB255               User #=  255
>>>> AIPS 1: Observ. date=08-APR-2009     Map date=05-MAY-2009
>>>> AIPS 1: # visibilities   1046761     Sort order  TB
>>>> AIPS 1: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  TIME1  BASELINE
>>>> AIPS 1:            SOURCE  FREQSEL  INTTIM  GATEID  CORR-ID
>>>> AIPS 1:
>>>> ----------------------------------------------------------------
>>>> AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr  
>>>> Rotat
>>>> AIPS 1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: STOKES       2  -1.0000000E+00       1.00 -1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: FREQ        16   2.2197040E+10       0.53  5.0000000E+05   
>>>> 0.00
>>>> AIPS 1: IF           4   1.0000000E+00       1.00  1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: RA           1    00 00 00.000       1.00       0.000000   
>>>> 0.00
>>>> AIPS 1: DEC          1    00 00 00.000       1.00       0.000000   
>>>> 0.00
>>>> AIPS 1:
>>>> ----------------------------------------------------------------
>>>> AIPS 1: Coordinate equinox 2000.00
>>>>
>>>>
>>>> and
>>>>
>>>> AIPS 1: Image=MULTI     (UV)         Filename=BB255C      .FXPOL .   2
>>>> AIPS 1: Telescope=VLBA               Receiver=
>>>> AIPS 1: Observer=BB255               User #=  255
>>>> AIPS 1: Observ. date=09-APR-2009     Map date=05-MAY-2009
>>>> AIPS 1: # visibilities    970096     Sort order  TB
>>>> AIPS 1: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  TIME1  BASELINE
>>>> AIPS 1:            SOURCE  FREQSEL  INTTIM  GATEID  CORR-ID
>>>> AIPS 1:
>>>> ----------------------------------------------------------------
>>>> AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr  
>>>> Rotat
>>>> AIPS 1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: STOKES       2  -1.0000000E+00       1.00 -1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: FREQ        16   2.2197040E+10       0.53  5.0000000E+05   
>>>> 0.00
>>>> AIPS 1: IF           4   1.0000000E+00       1.00  1.0000000E+00   
>>>> 0.00
>>>> AIPS 1: RA           1    00 00 00.000       1.00       0.000000   
>>>> 0.00
>>>> AIPS 1: DEC          1    00 00 00.000       1.00       0.000000   
>>>> 0.00
>>>> AIPS 1:
>>>> ----------------------------------------------------------------
>>>> AIPS 1: Coordinate equinox 2000.00
>>>>
>>>> Do you have any idea why I get this error?
>>>>
>>>> Cheers,
>>>> Andreas
>>>
>>>
>>> This is a bizarre looking error - the number of axes being 2 would apply
>>> to some simple images perhaps although aips normally makes more axes
>>> than that.  There was a bug in FITLD that I fixed in 31DEC09 on April 10
>>> which conceivably could be behind this problem although the testing that
>>> I did showed other issues mostly not serious.  Try bringing your version
>>> up to date and re-running FITLD.
>>
>>
>> I tried it both with our MPIfR installation and on my laptop (after
>> bringing it up to date). Still the same problem. However, if I load both
>> files separately and use DBCON, it seems to work.
>>
>> Andreas
>>
>>
> 


-- 
  \_________________________________________________________________

 Andreas Brunthaler
 Max-Planck-Institut fuer Radioastronomie

 Auf dem Huegel 69            Tel.   :  +49 228 525 377
 53121 Bonn                   Fax    :  +49 228 525 229
 Germany                      e-mail :  brunthal at mpifr-bonn.mpg.de
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