Skip to main content

All Questions

Tagged with
Filter by
Sorted by
Tagged with
2 votes
0 answers
123 views

Beginner to simulating communications systems of space missions. I have GMAT, MATLAB and NASA's SPICE library. Where would I start?

I recently managed to load SPICE kernels into GMAT to simulate the trajectories of real missions, and got its MATLAB interface working (still trying to understand how to use the two software together)....
Johan Sondberg's user avatar
13 votes
1 answer
476 views

Different Earth-centered ICRF positions in GMAT and Skyfield/Spiceypy with DE421

I compared the Earth-centered positions from the Moon in the ICRF (i.e., in GCRF) using three different sources: SpiceyPy (https://pypi.org/project/spiceypy/) Skyfield (https://rhodesmill.org/...
Thibault's user avatar
  • 133
1 vote
0 answers
86 views

How to compute light time correction for eclipse entry/exit timings?

I used a typical geosynchronous orbital parameters and generated lunar shadow penumbra entry and exit timings using OREKIT and GMAT. GMAT has an option to include light-time correction (also for ...
rajeshphy1727's user avatar