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🛰️ SATELLITE · HISTORICAL RECORD

ROCSAT-1

Re-entered 21 May 2023

ROCSAT-1 (NORAD 25616, COSPAR 1999-002A) was a TW satellite that re-entered Earth's atmosphere on 21 May 2023, launched on 27 Jan 1999 on the ROCSAT-1 mission. It was operated by NSPT as part of the ROCSAT programme. The spacecraft was built by TRW on the LEOStar T-200 bus, with a mass of 403 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.

1999
launched
2023
re-entered
24
years on orbit
403
kg mass

Lifecycle

Launched27 Jan 1999 · on the ROCSAT-1 mission
Operational17 Jun 2004 · entered service
Retired17 Jun 2004 · end of operational service
Re-entered21 May 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID25616
COSPAR1999-002A
TypeSatellite
OperatorNSPT
Country / StateTW
ManufacturerTRW
BusLEOStar T-200
Mass403 kg (330 kg dry)
ProgrammeROCSAT
CategoryEOSCI/SCI
OrbitLEO (LLEO/I)
Altitude586 × 604 km
Inclination35.0°

Frequently asked questions

What happened to ROCSAT-1?

ROCSAT-1 re-entered Earth's atmosphere on 21 May 2023, ending a mission that began with its launch in 1999. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did ROCSAT-1 re-enter the atmosphere?

ROCSAT-1 re-entered on 21 May 2023, according to Orbital Radar's historical catalogue records.

Who operated and built ROCSAT-1?

ROCSAT-1 was operated by NSPT and built by TRW (TW).

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