🛰️TLE Support

When oem is installed with the tle extra, it provides basic support for creating OEM files from TLEs. Internally, the TLE is propagated using the sgp4 package.

from oem.tle import tle_to_oem
from astropy.time import Time

tle = [
    "ISS (ZARYA)",
    "1 25544U 98067A   24069.80428241  .00013510  00000+0  24615-3 0  9990",
    "2 25544  51.6414  87.9469 0006205 347.9554   1.1547 15.4977143144313",
]
start_epoch = Time('2024-03-09T00:00:00.000', format='isot', scale='utc')
stop_epoch = Time('2024-03-10T00:00:00.000', format='isot', scale='utc')
step = 60
frame = "ICRF"  # ICRF or TEME

oem = tle_to_oem(tle, start_epoch, stop_epoch, step, frame=frame)
oem.save_as("iss.oem")