Analyzing NEOs

NEO stands for near-Earth object. The Center for NEO Studies (CNEOS) defines NEOs as comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter the Earth’s neighborhood.

And what does “near” exactly mean? In terms of orbital elements, asteroids and comets can be considered NEOs if their perihelion (orbit point which is nearest to the Sun) is less than 1.3 au = 1.945 * 108 km from the Sun.

[1]:
from astropy import time

from hapsira.bodies import Earth
from hapsira.frames import Planes
from hapsira.plotting import OrbitPlotter
from hapsira.twobody.orbit import Orbit

Small Body Database (SBDB)

[2]:
eros = Orbit.from_sbdb("Eros")
eros.plot(label="Eros")