-
### Background
In 2020, the United States Space Force released an implementation of the SGP4-XP propagator, a more accurate version of the standard SGP4, which is claimed to deliver accuracy comparab…
-
(Comes from [this conversation on Zulip](https://aerospaceresearch.zulipchat.com/#narrow/stream/147024-OrbitDeterminator/topic/sgp4dc/near/201818056))
I see that orbitdeterminator has an original S…
-
**Describe the bug**
When generating an orbit with sgp4, the expected altitude may be off by up to 10s of km for LEO orbits.
**To Reproduce**
```
import pysat
sat = pysat.Instrument('missions',…
-
# High level description
Nyx currently does not support the Two-Line Element Set (TLE) format and Simplified Perturbations Model (SGP4), both of which are commonly used in satellite tracking and co…
-
https://github.com/aerospaceresearch/orbitdeterminator/blob/d312577a969b1aa8ad1bbd317d80ded42613de19/orbitdeterminator/tests/check_sgp4.py#L1-L67
I could not find it. at least to test .py used it (…
-
Hi @amdasilva,
I find on Apr 10, 2023, in the develop branch the fortran source code src/f2py/sgp4_mod.F90 generate nan for lat, such that sgp4.py
with AeroApps/src/Components/misc/orbits/TLE ge…
-
Hey folks,
the most recent Starlink satellites ( https://celestrak.org/NORAD/elements/supplemental/sup-gp.php?FILE=starlink&FORMAT=csv ) seem to carry unusual high NORAD catalog numbers like 79950129…
-
Generating CZML from TLE is not consistent with the CZML generated and displayed by spacebook. http://apps.agi.com/SatelliteViewer/
Proposed Fix: Spacebook consistent orbital positions can be gener…
-
Hello,
Is it possible to convert ECI coordinates to ECEF from the DLL?
I made a script in PowerShell, the import of the DLL works, the latitude is OK but the longitude does anything and I have c…
-
By removing libgpredict and adding a pure rust implementation of SGP4 we also remove all libgpredict dependencies and improve the install experience.
Needs a Rust implementation of SGP4. See [rust-…