Timeline for TLE SGP4 Coordinate Transformations
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 23, 2018 at 17:07 | comment | added | uhoh | @AshtonMeginnis Thanks for your reply! I'll take another look. To get TLE's check out the answers to Obtain archived TLE data and also is space-track.org a free service? | |
| Apr 23, 2018 at 16:58 | comment | added | Ashton Meginnis | And to answer your first question. The TLE may not be available (I'm still not entirely sure how to get TLE's in the first place), but GPS telemetry will be available as position, velocity at epoch in an Earth Fixed frame. I'd like the user to be able to easily input data they have available and get an output in an easy to use format. | |
| Apr 23, 2018 at 16:55 | comment | added | Ashton Meginnis | TEME = True Equator Mean Equinox GMST = Greenwich Mean Sidereal Time EOP = Earth Orientation Parameters PEF = Pseudo Earth Fixed The TEME frame is the coordinate frame of the output of SGP4. The Earth Orientation Parameters are the x,y coordinates of the axis of rotation of the Earth, they are published here: celestrak.com/SpaceData | |
| Apr 23, 2018 at 16:50 | comment | added | Ashton Meginnis | TEME = True Equator Mean Equinox | |
| Apr 20, 2018 at 16:44 | vote | accept | Ashton Meginnis | ||
| Apr 23, 2018 at 16:40 | |||||
| Apr 20, 2018 at 16:43 | comment | added | Ashton Meginnis | Thanks for the response! Follow up question: If I go with option 1, should I tell the user to pull the TLE from NORAD as input at epoch? And then I still need to get the TEME output into a relevant frame, correct? | |
| Apr 19, 2018 at 2:11 | history | answered | uhoh | CC BY-SA 3.0 |