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🛰️ SATELLITE · HISTORICAL RECORD

MS-T5

Re-entered 8 Jan 1985

MS-T5 (NORAD 15464, COSPAR 1985-001A) was a J satellite that re-entered Earth's atmosphere on 8 Jan 1985, launched on 7 Jan 1985 on the MS-T5 mission. It was operated by ISASM as part of the ISAS Planet programme. The spacecraft was built by ISASM on the PLANET-A bus, with a mass of 136 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.

1985
launched
1985
re-entered
0
years on orbit
136
kg mass

Lifecycle

Launched7 Jan 1985 · on the MS-T5 mission
Operational7 Jan 1999 · entered service
Retired7 Jan 1999 · end of operational service
Re-entered8 Jan 1985 · atmospheric re-entry — object destroyed

Specifications

NORAD ID15464
COSPAR1985-001A
TypeSatellite
OperatorISASM
Country / StateJ
ManufacturerISASM
BusPLANET-A
Mass136 kg (126 kg dry)
ProgrammeISAS Planet
CategoryPLAN
OrbitHEO (EEO)
Altitude250 × -117,930 km
Inclination31.1°

Frequently asked questions

What happened to MS-T5?

MS-T5 re-entered Earth's atmosphere on 8 Jan 1985, ending a mission that began with its launch in 1985. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did MS-T5 re-enter the atmosphere?

MS-T5 re-entered on 8 Jan 1985, according to Orbital Radar's historical catalogue records.

Who operated and built MS-T5?

MS-T5 was operated by ISASM and built by ISASM (J).

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