def test_tle_to_and_from():
txt = """1 25544U 98067A 08264.51782528 -.00002182 00000-0 -11606-4 0 2927
2 25544 51.6416 247.4627 0006703 130.5360 325.0288 15.72125391563537"""
orb = Tle(txt).orbit()
new_txt = Tle.from_orbit(orb, norad_id=25544, cospar_id='1998-067A')
assert str(new_txt) == txt
def test_to_and_from(both):
tle = Tle(both)
orb = tle.orbit()
orb2 = orb.copy()
del orb2._data["cospar_id"]
tle2 = Tle.from_orbit(orb, name=tle.name, norad_id=tle.norad_id, cospar_id=tle.cospar_id)
tle3 = Tle.from_orbit(orb2, name=tle.name, norad_id=tle.norad_id)
assert tle2.cospar_id == tle.cospar_id
assert tle3.cospar_id == ""
tle, tle2 = tle.text.splitlines(), tle2.text.splitlines()
for i in range(2):
# We don't test the last two fields of the TLE because when we reconstruct one from scracth
# we can't have any information about the element set number. And because of that, the
# checksum is also different
assert tle[i][:63] == tle2[i][:63]
def test_tle(tle, ccsds_format):
# Check that a TLE and its OMM representation are the same
txt = dumps(tle, fmt=ccsds_format)
orb = loads(txt)
new_tle = Tle.from_orbit(orb)
assert str(tle.tle) == str(new_tle)
assert all(tle == orb)
date = Date(2020, 9, 30)
assert all(tle.propagate(date) == orb.propagate(date))