[Difx-users] generate fixed JPLEPH calc9 file for calcif2? {External}

[Jay Blanchard]

Sorry Jan I don't know enough about the formats but just in case it is the
same - here is JPLEPH.421 that we use for SCHED.
I assume it is not the same?

On Tue, 21 Jan 2025 at 09:58, Michael Dutka via Difx-users <
difx-users at listmgr.nrao.edu> wrote:

> Hi Jan,
> We just updated the tables dfixcalc11 uses with more stations they're
> attached here.  Hope these help!
> -Mike
>
>
>
> On Tue, Jan 21, 2025 at 9:49 AM Jan Wagner via Difx-users <
> difx-users at listmgr.nrao.edu> wrote:
>
>> Hi list,
>>
>> the old CALC 9.1 model behind DiFX 'calcif2' comes with two data
>> files, JPLEPH and Horizons.lis.
>>
>> Unfortunately, the file JPLEPH file is "broken" in the sense that the
>> ephemerides data contained in it ended already on 12th January 2025.
>>
>> For VLBI experiments after that date, the calcif2 processing needed prior
>> to correlation does not work - not even for VLBI experiments without local
>> planetary objects.
>>
>> Perhaps someone on the list would be able to generate a corrected file?
>>
>> John Benson created the current file at NRAO more than 10 years ago.
>> Unfortunately, he is not at NRAO anymore, perhaps retired.
>>
>> A move to difxcalc11 to replace calcif2 is possible, but the ocean
>> loading tables in it are incomplete. They are missing a lot of stations,
>> difxcalc11 complains. It'd be more convenient if calcif2 could work for a
>> while longer - with a fixed JPLEPH file.
>>
>> Many thanks,
>> kind regards,
>> Jan
>> _______________________________________________
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>>
>
>
> --
> Dr. Michael S. Dutka
> US Navy (civilian)
> USNO Phone Number- 202-762-0242
> Cell- 301-996-3588
>
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