[Difx-users] DIFXCalc max number of antenna

[Olaf Wucknitz]

Hi Chris,

I am regularly running difxcalc11 outside of difx from an own python 
script. I just checked and find the same problem with 20 (but not with 19) 
antennas.

In c2poly.i I find the following lines:

       Integer*4  Nstation2      ! Maximum # of stations
       Parameter (Nstation2 = 24)
!      Use Maxstat instead from d_input.i
!

And then in d_input.i:

!   Set MaxStat to the maximum number of stations that will ever be
!    correlated plus 1 for the geocenter. (Also see Max_Stat in cmxst.i)
       Integer*4 MaxStat
       Parameter (MaxStat = 20)

And it goes on in cmxst11.i:

!***The maximum number of stations can be changed in the following parameter
!***statement and is the only change necessary:
!
       Integer*4 Max_Stat      ! Maximum number of stations in the database
       Parameter(Max_Stat = 36)



Currently I do not have the time to follow this up, but it would be great 
if somebody could. This should also be checked in the code.


Cheers,
Olaf



On Thu, 14 Jun 2018, Chris.Phillips at csiro.au wrote:

> Hi everyone,
>
> Does anyone know if difxcalc11 has a maximum number of antenna? Specifically I seem to hit a limit at 20 antenna (19 works OK).
>
> Attached are 2 .calc files with 19 and 20 antenna. The first works, the second does not:
>
> THE PROGRAM HAS TERMINATED IN SUBROUTINE AXOG.  KAXIS ( 2) =  0.
> CALC has terminated in subroutine AXOG  ,KERR(0) =  0.
>
>
> Note that these .calc files are generated from a perl script I have written (not vex2difx) so it could just be a dumb problem I have introduced.
>
> Cheers
> Chris
>
>

-- 
Olaf Wucknitz
Max-Planck-Institut fuer Radioastronomie           wucknitz at mpifr-bonn.mpg.de
Bonn, Germany                          http://www.astro.uni-bonn.de/~wucknitz