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MS-T2

Re-entered 22 Jan 1983

MS-T2 (NORAD 7122, COSPAR 1974-008A) was a J satellite that re-entered Earth's atmosphere on 22 Jan 1983, launched on 16 Feb 1974 on the MS-T2 mission. It was operated by ISAS as part of the Tansei programme. The spacecraft was built by ISAS on the MS-T bus, with a mass of 56 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.

1974
launched
1983
re-entered
9
years on orbit
56
kg mass

Lifecycle

Launched16 Feb 1974 · on the MS-T2 mission
Operational2 Mar 1974 · entered service
Retired2 Mar 1974 · end of operational service
Re-entered22 Jan 1983 · atmospheric re-entry — object destroyed

Specifications

NORAD ID7122
COSPAR1974-008A
TypeSatellite
OperatorISAS
Country / StateJ
ManufacturerISAS
BusMS-T
Mass56 kg
ProgrammeTansei
CategoryTECH
OrbitLEO (LEO/I)
Altitude283 × 3,223 km
Inclination31.2°

Frequently asked questions

What happened to MS-T2?

MS-T2 re-entered Earth's atmosphere on 22 Jan 1983, ending a mission that began with its launch in 1974. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did MS-T2 re-enter the atmosphere?

MS-T2 re-entered on 22 Jan 1983, according to Orbital Radar's historical catalogue records.

Who operated and built MS-T2?

MS-T2 was operated by ISAS and built by ISAS (J).

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