<div dir="ltr"><div>Hi Chris,</div><div><br></div><div>I do have some examples of correlating with TLEs, and I would be happy to talk it over with you. I think that Walter Brisken coded up the TLE handling for DiFX, so he's the primary source. You'll have to compile DiFX with a link to the JPL SPICE library for it to work, but once that's set up, the changes to VEX/V2D are fairly simple. Leonid and I have been working on producing IM files of higher fidelity that use ephemerides and an analytical near field delay model in his package VTD, but it sounds like that might not be necessary for your case.</div><div><br></div><div>Best,</div><div>Joe<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Apr 11, 2024 at 7:40 PM Leonid Petrov <<a href="mailto:Leonid.Petrov@lpetrov.net">Leonid.Petrov@lpetrov.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Chris,<br>
<br>
Yes, Joe Skeens works on it right now. Please contact with him.<br>
<br>
Leonid<br>
<br>
> On 2024-04-11 20:13, Phillips, Chris (S&A, Marsfield) via Difx-users <br>
> wrote:<br>
> Hi all<br>
> <br>
> We are currently testing/commissioning an entirely new backend for the<br>
> ATCA.<br>
> <br>
> To test phase stability , we have observed a Geostationary satellite<br>
> at 12.2 GHz. This is working nicely and can get away without fringe<br>
> rotation, but the satellite is not perfectly stationary on the sky, so<br>
> there is a slow phase drift (degree per second or so).<br>
> <br>
> It would be nice to correlate using the DIFX near field support.<br>
> <br>
> Is anyone able to help me setup based on satellite TLE or similar?<br>
> <br>
> Thanks<br>
> Chris<br>
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</blockquote></div>