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HEXAGON SV-5

Re-entered 19 May 1973

HEXAGON SV-5 (NORAD 6382, COSPAR 1973-014A) was a US satellite that re-entered Earth's atmosphere on 19 May 1973, launched on 9 Mar 1973 on the HEXAGON SV-5 mission. It was operated by NRO / SAFSP as part of the Hex I programme. The spacecraft was built by LMSC on the KH-9 bus, with a mass of 6,546 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.

1973
launched
1973
re-entered
0
years on orbit
6,546
kg mass

Lifecycle

Launched9 Mar 1973 · on the HEXAGON SV-5 mission
Operational19 May 1973 · entered service
Retired19 May 1973 · end of operational service
Re-entered19 May 1973 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6382
COSPAR1973-014A
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC
BusKH-9
Mass6,546 kg (5,346 kg dry)
ProgrammeHex I
CategoryIMG
OrbitLEO (LLEO/S)
Altitude165 × 265 km
Inclination95.7°

Frequently asked questions

What happened to HEXAGON SV-5?

HEXAGON SV-5 re-entered Earth's atmosphere on 19 May 1973, ending a mission that began with its launch in 1973. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did HEXAGON SV-5 re-enter the atmosphere?

HEXAGON SV-5 re-entered on 19 May 1973, according to Orbital Radar's historical catalogue records.

Who operated and built HEXAGON SV-5?

HEXAGON SV-5 was operated by NRO / SAFSP and built by LMSC (US).

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