def set_orbit(self, timestamp):
"""Determination of primary and secondary orbital functions.
Args:
timestamp (:obj:`datetime.datetime`): Date and time to extract constituent arguments at.
"""
self.orbit.astro = astro(timestamp)
def extractor(c):
# info: name, amplitude, phase, speed
return (c[0].name.upper(), c[1], c[2], c[0].speed(astro(t0)))