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🛰️ SATELLITE · HISTORICAL RECORD

US-P No. 129

Re-entered 23 Feb 1986

US-P No. 129 (NORAD 15167, COSPAR 1984-083A) was a SU satellite that re-entered Earth's atmosphere on 23 Feb 1986, launched on 7 Aug 1984 on the US-PM1 mission. It was operated by VMF as part of the US-P programme. The spacecraft was built by ARSL/KOMET on the US-P bus, with a mass of 3,300 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.

1984
launched
1986
re-entered
2
years on orbit
3,300
kg mass

Lifecycle

Launched7 Aug 1984 · on the US-PM1 mission
Operational11 Jun 1985 · entered service
Retired14 Jul 1985 · end of operational service
Re-entered23 Feb 1986 · atmospheric re-entry — object destroyed

Specifications

NORAD ID15167
COSPAR1984-083A
TypeSatellite
OperatorVMF
Country / StateSU
ManufacturerARSL/KOMET
BusUS-P
Mass3,300 kg (3,000 kg dry)
ProgrammeUS-P
CategorySIG
OrbitLEO (LLEO/I)
Altitude427 × 444 km
Inclination65.0°

Frequently asked questions

What happened to US-P No. 129?

US-P No. 129 re-entered Earth's atmosphere on 23 Feb 1986, ending a mission that began with its launch in 1984. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did US-P No. 129 re-enter the atmosphere?

US-P No. 129 re-entered on 23 Feb 1986, according to Orbital Radar's historical catalogue records.

Who operated and built US-P No. 129?

US-P No. 129 was operated by VMF and built by ARSL/KOMET (SU).

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