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🛰️ SATELLITE · HISTORICAL RECORD

P-11 No. 4409

Re-entered 22 Oct 1968

P-11 No. 4409 (NORAD 2851, COSPAR 1967-062B) was a US satellite that re-entered Earth's atmosphere on 22 Oct 1968, launched on 16 Jun 1967 on the CORONA J-37 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/ESL on the P-11 ML bus, with a mass of 100 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.

1967
launched
1968
re-entered
1
year on orbit
100
kg mass

Lifecycle

Launched16 Jun 1967 · on the CORONA J-37 mission
Operational22 Oct 1968 · entered service
Retired22 Oct 1968 · end of operational service
Re-entered22 Oct 1968 · atmospheric re-entry — object destroyed

Specifications

NORAD ID2851
COSPAR1967-062B
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC/ESL
BusP-11 ML
Mass100 kg
ProgrammeEHH B
CategorySIG
OrbitLEO (LLEO/I)
Altitude498 × 514 km
Inclination80.2°

Frequently asked questions

What happened to P-11 No. 4409?

P-11 No. 4409 re-entered Earth's atmosphere on 22 Oct 1968, ending a mission that began with its launch in 1967. 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. 4409 re-enter the atmosphere?

P-11 No. 4409 re-entered on 22 Oct 1968, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4409?

P-11 No. 4409 was operated by NRO / SAFSP and built by LMSC/ESL (US).

Launched together

CORONA J-37Re-entered 1967
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.