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🛰️ SATELLITE · HISTORICAL RECORD

P-11 No. 4406

Re-entered 9 May 1968

P-11 No. 4406 (NORAD 2420, COSPAR 1966-083B) was a US satellite that re-entered Earth's atmosphere on 9 May 1968, launched on 16 Sep 1966 on the GAMBIT SV 982 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/EDLS on the P-11 ML bus, with a mass of 91 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.

1966
launched
1968
re-entered
2
years on orbit
91
kg mass

Lifecycle

Launched16 Sep 1966 · on the GAMBIT SV 982 mission
Operational7 Dec 1967 · entered service
Retired7 Dec 1967 · end of operational service
Re-entered9 May 1968 · atmospheric re-entry — object destroyed

Specifications

NORAD ID2420
COSPAR1966-083B
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC/EDLS
BusP-11 ML
Mass91 kg
ProgrammeEHH B
CategorySIG
OrbitLEO (LLEO/P)
Altitude466 × 489 km
Inclination94.0°

Frequently asked questions

What happened to P-11 No. 4406?

P-11 No. 4406 re-entered Earth's atmosphere on 9 May 1968, ending a mission that began with its launch in 1966. 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. 4406 re-enter the atmosphere?

P-11 No. 4406 re-entered on 9 May 1968, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4406?

P-11 No. 4406 was operated by NRO / SAFSP and built by LMSC/EDLS (US).

Launched together

GAMBIT SV 982Re-entered 1966
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.