Green’s Dictionary of Slang

orbit n.

[SE orbital rave + play on the drug’s sending one into orbit]

(drugs) MDMA.

[Aus]DRUG-ARM Aus. 🌐 Slang Terms: orbit MDMA (Ecstasy).

In phrases

go into orbit (v.)

(S.Afr.) to tour the criminal underworld.

[SA]L.F. Freed Crime in S. Afr. 75: ‘to go into orbit’ signified doing the rounds of the underworld.
in orbit (adj.)

(US teen) excellent.

[US]Eve. Standard (Uniontown, PA) 17 Mar. 35/1: Beatnik English by a Beatnik [...] In orbit — way out (good).