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🛰️ SATELLITE · HISTORICAL RECORD

AUOS-Z-R-O

Re-entered 11 Oct 1979

AUOS-Z-R-O (NORAD 9898, COSPAR 1977-023A) was a SU satellite that re-entered Earth's atmosphere on 11 Oct 1979, launched on 29 Mar 1977 on the AUOS-Z-R-O Oval mission. It was operated by MOM / IK as part of the AUOS programme. The spacecraft was built by YUZH on the AUOS bus, with a mass of 1,056 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.

1977
launched
1979
re-entered
2
years on orbit
1,056
kg mass

Lifecycle

Launched29 Mar 1977 · on the AUOS-Z-R-O Oval mission
Operational11 Oct 1979 · entered service
Retired11 Oct 1979 · end of operational service
Re-entered11 Oct 1979 · atmospheric re-entry — object destroyed

Specifications

NORAD ID9898
COSPAR1977-023A
TypeSatellite
OperatorMOM / IK
Country / StateSU
ManufacturerYUZH
BusAUOS
Mass1,056 kg
ProgrammeAUOS
CategorySCI
OrbitLEO (LLEO/I)
Altitude455 × 519 km
Inclination83.0°

Frequently asked questions

What happened to AUOS-Z-R-O?

AUOS-Z-R-O re-entered Earth's atmosphere on 11 Oct 1979, ending a mission that began with its launch in 1977. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did AUOS-Z-R-O re-enter the atmosphere?

AUOS-Z-R-O re-entered on 11 Oct 1979, according to Orbital Radar's historical catalogue records.

Who operated and built AUOS-Z-R-O?

AUOS-Z-R-O was operated by MOM / IK and built by YUZH (SU).

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