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koansys / isat

Satellite Orbit Tracker: implement most-current SGP models and algorithms in JavaScript, then use to visualize hundreds of satellites with any browser
BSD 3-Clause "New" or "Revised" License
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Cronjob to pull TLEs from Celestrak to server, produce artifacts #111

Closed shentonfreude closed 11 years ago

shentonfreude commented 11 years ago

For s.n.g we'll need a cronjob that pulls TLE files from Celestrak daily, like we do for the olde JTrack3D.

In that, we'll need to produce artifacts, like a distinct file containing only Science Missions. Perhaps also the requested "All" satellites file as well (with de-duping).

We might even want to generate a file for searches that lists the satellite name and corresponding file that they live in, but that's probably a post-1.0 feature in the UI and app itself.

shentonfreude commented 11 years ago

This includes things like the just-launched Landsat 8.

joshfinnie commented 11 years ago

Must have HST.

shentonfreude commented 11 years ago

Josh, .../isat/tle-utils/get_celestrak_files.py no retrieves those files and saves a copy of each under viz/tle/. It then generates an ALL.txt of the combined, deduped, alphabetized satellites there -- including HST. And generates an SMD.txt of the ones for which we have Science Mission NORAD IDs. That's the only stuff that should go int the viz/tle/ dir -- I've removed my old crap.

I've run out of time to wrap this in a cron job -- I'll need to work with you to figure out the target directory for them. And we'll have to be super careful we don't overwrite good files with bad ones (e.g., empty files) or run amok nuking files if we have a failure getting to Celestrak.

So before you deploy again to get the math corrections, run get_celestrak_files.py and commit first to bring us up to date.