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🛰️ SATELLITE · HISTORICAL RECORD

Gemini SC4

Re-entered 7 Jun 1965

Gemini SC4 (NORAD 1390, COSPAR 1965-043A) was a US satellite that re-entered Earth's atmosphere on 7 Jun 1965, launched on 3 Jun 1965 on the Gemini SC4 mission. It was operated by MSC as part of the Gemini programme. The spacecraft was built by MCDA on the Gemini bus, with a mass of 2,134 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.

1965
launched
1965
re-entered
0
years on orbit
2,134
kg mass

Lifecycle

Launched3 Jun 1965 · on the Gemini SC4 mission
Operational7 Jun 1965 · entered service
Retired7 Jun 1965 · end of operational service
Re-entered7 Jun 1965 · atmospheric re-entry — object destroyed

Specifications

NORAD ID1390
COSPAR1965-043A
TypeSatellite
OperatorMSC
Country / StateUS
ManufacturerMCDA
BusGemini
Mass2,134 kg
ProgrammeGemini
CategorySS
OrbitLEO (LLEO/I)
Altitude165 × 289 km
Inclination32.5°

Frequently asked questions

What happened to Gemini SC4?

Gemini SC4 re-entered Earth's atmosphere on 7 Jun 1965, ending a mission that began with its launch in 1965. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Gemini SC4 re-enter the atmosphere?

Gemini SC4 re-entered on 7 Jun 1965, according to Orbital Radar's historical catalogue records.

Who operated and built Gemini SC4?

Gemini SC4 was operated by MSC and built by MCDA (US).

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