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🛰️ SATELLITE · HISTORICAL RECORD

P-11 No. 4403

Re-entered 17 Jun 1968

P-11 No. 4403 (NORAD 1472, COSPAR 1965-062B) was a US satellite that re-entered Earth's atmosphere on 17 Jun 1968, launched on 3 Aug 1965 on the GAMBIT SV 971 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/ATI on the P-11 L bus, with a mass of 83 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
1968
re-entered
3
years on orbit
83
kg mass

Lifecycle

Launched3 Aug 1965 · on the GAMBIT SV 971 mission
Operational9 Mar 1967 · entered service
Retired9 Mar 1967 · end of operational service
Re-entered17 Jun 1968 · atmospheric re-entry — object destroyed

Specifications

NORAD ID1472
COSPAR1965-062B
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC/ATI
BusP-11 L
Mass83 kg
ProgrammeEHH B
CategorySIG
OrbitLEO (LLEO/R)
Altitude502 × 507 km
Inclination107.3°

Frequently asked questions

What happened to P-11 No. 4403?

P-11 No. 4403 re-entered Earth's atmosphere on 17 Jun 1968, 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 P-11 No. 4403 re-enter the atmosphere?

P-11 No. 4403 re-entered on 17 Jun 1968, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4403?

P-11 No. 4403 was operated by NRO / SAFSP and built by LMSC/ATI (US).

Launched together

GAMBIT SV 971Re-entered 1965
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.