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🛰️ SATELLITE · HISTORICAL RECORD

P-11 No. 4101

Re-entered 7 Nov 1964

P-11 No. 4101 (NORAD 719, COSPAR 1963-055B) was a US satellite that re-entered Earth's atmosphere on 7 Nov 1964, launched on 21 Dec 1963 on the CORONA M-26 mission. It was operated by NRO / SAFSP as part of the EHH A programme. The spacecraft was built by LMSC/EDLS on the P-11 bus, with a mass of 74 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.

1963
launched
1964
re-entered
1
year on orbit
74
kg mass

Lifecycle

Launched21 Dec 1963 · on the CORONA M-26 mission
Operational12 Mar 1964 · entered service
Retired12 Mar 1964 · end of operational service
Re-entered7 Nov 1964 · atmospheric re-entry — object destroyed

Specifications

NORAD ID719
COSPAR1963-055B
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC/EDLS
BusP-11
Mass74 kg
ProgrammeEHH A
CategorySCI
OrbitLEO (LLEO/I)
Altitude312 × 389 km
Inclination64.5°

Frequently asked questions

What happened to P-11 No. 4101?

P-11 No. 4101 re-entered Earth's atmosphere on 7 Nov 1964, ending a mission that began with its launch in 1963. 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. 4101 re-enter the atmosphere?

P-11 No. 4101 re-entered on 7 Nov 1964, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4101?

P-11 No. 4101 was operated by NRO / SAFSP and built by LMSC/EDLS (US).

Launched together

CORONA M-26Re-entered 1964
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.