[daip] antenna table

[Leonia Kogan]

Sergey,

I think,

The problem (I think) is at your DIFX correlator !!!!

Look the output of the corellator: .
You probably do not have the OB table at all, or the OB table is very 
corrupted.

Read with great attention the help file for the task OBTAB:

Use OBTAB to add the orbital elements for orbiting
   antennae to an Antenna table. The elements for orbiting
   antennas may be supplied explicitly as APARMs or may be calculated
   automatically from an orbit (OB) table if one is present

   I recommend to use APARM at least for the beginning


LK







On 09/19/2014 09:42 AM, Kalenskii Sergei wrote:
> Dear colleagues,
>
> thank you very much for your response.
>
> The answers on your questions are as follows:
>
> The inputs for OBTAB:
>
> AIPS 1: OBTAB     Task to calculate various orbital information
> AIPS 1: Adverbs     Values                 Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME     'RE02F'                 Input UV file name (name)
> AIPS 1: INCLASS    'UVDATA'                Input UV file name (class)
> AIPS 1: INSEQ         1                    Input UV file name (seq. #)
> AIPS 1: INDISK        1                    Input UV file disk unit #
> AIPS 1: INVERS        1                    Input OB table version
> AIPS 1:                                    0 => last
> AIPS 1: SUBARRAY      0                    Subarray number; 0 => 1
> AIPS 1: ANTENNAS   *all 0                  List of antenna to update
> AIPS 1:                                     All 0 => update all
> AIPS 1:                                     antennae with mount type
> AIPS 1:                                     set to orbiting
> AIPS 1: APARM      *all 0                  Orbital parameters
> AIPS 1:                                     1: semi-major axis in meters
> AIPS 1:                                     2: eccentricity
> AIPS 1:                                     3: inclination (deg)
> AIPS 1:                                     4: RA of ascending node
> AIPS 1:                                        (deg)
> AIPS 1:                                     5: argument of perigee (deg)
> AIPS 1
>
> and AIPS says
>
>     1    5   19-SEP-2014  19:26:41     OBTAB     Task OBTAB  (release of 31DEC13) begins
>     1    2   19-SEP-2014  19:26:41     AIPS      Resumes
>     1    6   19-SEP-2014  19:26:41     OBTAB     TABINI: KEY COUNTS      1     51 OR COLS      8      7 DON'T MATCH
>     1    6   19-SEP-2014  19:26:41     OBTAB     OBINI: ERROR   1 FROM TABINI OPCODE = WRIT
>     1    7   19-SEP-2014  19:26:41     OBTAB     OBINI: ERROR INITIALIZING SPACECRAFT ORBIT TABLE FOR WRIT
>     1    7   19-SEP-2014  19:26:41     OBTAB     PROBLEM WITH TABLE OBJECT ORBTA
>     1    9   19-SEP-2014  19:26:41     OBTAB     UPDOTB: FAILED TO OPEN OB TABLE (ERROR   1)
>     1    9   19-SEP-2014  19:26:41     OBTAB     FAILED TO UPDATE ORBIT TABLE
>     1    3   19-SEP-2014  19:26:41     OBTAB     Purports to die of UNNATURAL causes
>
> The initial AN table appeared when I loaded my data (correlated by DIFX) with FITLD.
>
> Thank you in advance
>
> Sergei
>
>
>
> Thank you for the PRTAB display in particular.  That shows that
> OBTAB failed to add the orbit parameters.  Can you send us the
> input adverbs you used for OBTAB and what it said when you ran it.
>
> Anyway it is clear now that FRMAP can not work for the orbiting case if
> the AN table is not prepared correctly including NMTSTA.EQ.2 for the
> orbiting antenna.
>
> Where did you picked up the initial AN table from?
>
> LK
>
>
>
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