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🛰️ SATELLITE · HISTORICAL RECORD

Mech-K No. 304

Re-entered 29 Jul 1989

Mech-K No. 304 (NORAD 18225, COSPAR 1987-064A) was a SU satellite that re-entered Earth's atmosphere on 29 Jul 1989, launched on 25 Jul 1987 on the Mech-K No. 304 mission. It was operated by ZIKH as part of the Mech programme. The spacecraft was built by ZIKH on the Almaz bus, with a mass of 18,500 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.

1987
launched
1989
re-entered
2
years on orbit
18,500
kg mass

Lifecycle

Launched25 Jul 1987 · on the Mech-K No. 304 mission
Operational29 Jul 1989 · entered service
Retired29 Jul 1989 · end of operational service
Re-entered29 Jul 1989 · atmospheric re-entry — object destroyed

Specifications

NORAD ID18225
COSPAR1987-064A
TypeSatellite
OperatorZIKH
Country / StateSU
ManufacturerZIKH
BusAlmaz
Mass18,500 kg
ProgrammeMech
CategoryIMG-R
OrbitLEO (LLEO/I)
Altitude242 × 254 km
Inclination71.9°

Frequently asked questions

What happened to Mech-K No. 304?

Mech-K No. 304 re-entered Earth's atmosphere on 29 Jul 1989, ending a mission that began with its launch in 1987. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Mech-K No. 304 re-enter the atmosphere?

Mech-K No. 304 re-entered on 29 Jul 1989, according to Orbital Radar's historical catalogue records.

Who operated and built Mech-K No. 304?

Mech-K No. 304 was operated by ZIKH and built by ZIKH (SU).

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