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🛰️ SATELLITE · HISTORICAL RECORD

P-11 No. 4407

Re-entered 30 Oct 1970

P-11 No. 4407 (NORAD 4111, COSPAR 1969-082A) was a US satellite that re-entered Earth's atmosphere on 30 Oct 1970, launched on 30 Sep 1969 on the P-11 No. 4407 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/HRBS on the P-11 ML bus, with a mass of 103 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.

1969
launched
1970
re-entered
1
year on orbit
103
kg mass

Lifecycle

Launched30 Sep 1969 · on the P-11 No. 4407 mission
Operational17 Aug 1970 · entered service
Retired17 Aug 1970 · end of operational service
Re-entered30 Oct 1970 · atmospheric re-entry — object destroyed

Specifications

NORAD ID4111
COSPAR1969-082A
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerLMSC/HRBS
BusP-11 ML
Mass103 kg
ProgrammeEHH B
CategorySIG
OrbitLEO (LLEO/I)
Altitude442 × 477 km
Inclination69.7°

Frequently asked questions

What happened to P-11 No. 4407?

P-11 No. 4407 re-entered Earth's atmosphere on 30 Oct 1970, ending a mission that began with its launch in 1969. 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. 4407 re-enter the atmosphere?

P-11 No. 4407 re-entered on 30 Oct 1970, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4407?

P-11 No. 4407 was operated by NRO / SAFSP and built by LMSC/HRBS (US).

Launched together

NRL PL176NORAD 4256Timation 2NORAD 4257POPPY 6 AlfaNORAD 4259POPPY 6 BravoNORAD 4237POPPY 6 CharlieNORAD 4247POPPY 6 DeltaNORAD 4295NRL PL157CNORAD 4168NRL PL149ARe-entered 2023
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.