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LO-B

Re-entered 8 Nov 1966

LO-B (NORAD 2534, COSPAR 1966-100A) was a US satellite that re-entered Earth's atmosphere on 8 Nov 1966, launched on 6 Nov 1966 on the Lunar Orbiter B mission. It was operated by LARCN as part of the LO programme. The spacecraft was built by BOKT on the Lunar Orbiter bus, with a mass of 380 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

1966
launched
1966
re-entered
0
years on orbit
380
kg mass

Lifecycle

Launched6 Nov 1966 · on the Lunar Orbiter B mission
Operational11 Oct 1967 · entered service
Retired11 Oct 1967 · end of operational service
Re-entered8 Nov 1966 · atmospheric re-entry — object destroyed

Specifications

NORAD ID2534
COSPAR1966-100A
TypeSatellite
OperatorLARCN
Country / StateUS
ManufacturerBOKT
BusLunar Orbiter
Mass380 kg (261 kg dry)
ProgrammeLO
CategoryPLAN
OrbitBEO (CLO)
Altitude185 × 358,688 km
Inclination28.6°

Frequently asked questions

What happened to LO-B?

LO-B re-entered Earth's atmosphere on 8 Nov 1966, ending a mission that began with its launch in 1966. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did LO-B re-enter the atmosphere?

LO-B re-entered on 8 Nov 1966, according to Orbital Radar's historical catalogue records.

Who operated and built LO-B?

LO-B was operated by LARCN and built by BOKT (US).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.