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🛰️ SATELLITE · HISTORICAL RECORD

shijian erhao

Re-entered 17 Aug 1982

shijian erhao (NORAD 12845, COSPAR 1981-093D) was a CN satellite that re-entered Earth's atmosphere on 17 Aug 1982, launched on 19 Sep 1981 on the shijian erhao B xing mission. It was operated by JGB7 as part of the SJ programme. The spacecraft was built by CAST on the SJ-2 bus, with a mass of 257 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.

1981
launched
1982
re-entered
1
year on orbit
257
kg mass

Lifecycle

Launched19 Sep 1981 · on the shijian erhao B xing mission
Operational1 Aug 1982 · entered service
Retired1 Aug 1982 · end of operational service
Re-entered17 Aug 1982 · atmospheric re-entry — object destroyed

Specifications

NORAD ID12845
COSPAR1981-093D
TypeSatellite
OperatorJGB7
Country / StateCN
ManufacturerCAST
BusSJ-2
Mass257 kg
ProgrammeSJ
CategorySCI
OrbitLEO (LEO/I)
Altitude231 × 1,503 km
Inclination59.5°

Frequently asked questions

What happened to shijian erhao?

shijian erhao re-entered Earth's atmosphere on 17 Aug 1982, ending a mission that began with its launch in 1981. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did shijian erhao re-enter the atmosphere?

shijian erhao re-entered on 17 Aug 1982, according to Orbital Radar's historical catalogue records.

Who operated and built shijian erhao?

shijian erhao was operated by JGB7 and built by CAST (CN).

Launched together

shijian erhao B xingRe-entered 1981shijian erhao A xingRe-entered 1982
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.