Orbit classes:
Abbr. Long Form
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Int MPC interest.
NEO NEO(q < 1.3)
N22 NEO(H <= 22)
N18 NEO(H <= 18)
MC Mars Crosser
Hun Hungaria gr.
Pho Phocaea group
MB1 Inner MB
Pal Pallas group
Han Hansa group
MB2 Middle MB
MB3 Outer MB
Hil Hilda group
JTr Jupiter tr.
JFC Jupiter Comet