[daip] Nasmyth mount ?

[Eric Greisen]

Thomas Krichbaum wrote:
> Hi Richard,
> 
> how are things ? I need your advice. I cc this also to Eric. Perhaps your are able to help.
> 
> I  want to change the mount type for Pico Veleta to Nasmyth in AIPS.
> I follow your receipt using task TABED in AIPS(new)
> 
> use taks TABED to modify mountype of Pico
> (here: station no. 3 is Pico)
> task 'TABED'
> opty 'repl'
> inex 'AN'
> aparm 5 0 0 4 4 3 0 ; keyval 5 0
> go
> 
> This creates a new antenna table (AN 2). The table somehow does not work, running
> PRTAB I get only a listing for PV, but all other stations are missing. This is the output from
> PRTAN:
> 
> go prtan
> AIPS 1: Found in Version=NEW
>  vlb056    PRTAN(31DEC09)    459     08-APR-2010  10:32:56    Page    1
> File=GM063C.UVF  .UVSRT .   1     An.ver=   2     Vol= 1     User=  459
> Array= VLBI         Freq= 86210.990000 MHz     Ref.date= 11-MAY-2009
> 
> Array reference position in meters (Earth centered)
> Array BX=         0.00000    BY=         0.00000    BZ=         0.00000
> Polar X =  -0.04586 Polar Y =   0.49771 arcsec
> Earth rotation rate =  360.9856449772 degrees / IAT day
> GST at UT=0 =  228.9101399253 degrees
> UT1-UTC=      0.2768950   Data time(UTC     )-UTC=      0.0000000 seconds
> XYZHAND = 'RIGHT   '    TFRAME = '?????   '
> Solutions not yet determined for a particular FREQID
> Mount=NS-L  Axis offset=  0.0000 meters    IFA               IFB
> Feed polarization type =                    R                 L
> 
> Ant   3 = PICOVEL  BX=  5088967.9000 BY=   301681.6000 BZ=  3825015.8000
> 
> AIPS 1: Resumes
> 
> Am I doing something wrong ?
> 
>                regards, Thomas
> 

You need to avoid making an antenna file number 2.  AN files are special 
in that AN file 1 applies to subarray 1, AN file 2 applies to subarray 
2, etc.  and we assume that the times in the data have been altered by 5 
days times (subarray-1).  Run TABED to edit in place.

ERic Greisen