P-11 No. 4430

Re-entered 1 Jan 1990

P-11 No. 4430 (NORAD 9008, COSPAR 1976-065C) was a US satellite that re-entered Earth's atmosphere on 1 Jan 1990, launched on 8 Jul 1976 on the HEXAGON SV-12 mission. It was operated by NRO / SAFSP as part of the EHH D programme. The spacecraft was built by LMSC/MOTO on the P-11 CI bus, with a mass of 194 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.

1976

launched

1990

re-entered

years on orbit

194

kg mass

Lifecycle

Launched8 Jul 1976 · on the HEXAGON SV-12 mission

Operational1 Jun 1984 · entered service

Retired1 Jun 1984 · end of operational service

Re-entered1 Jan 1990 · atmospheric re-entry — object destroyed

Specifications

NORAD ID9008

COSPAR1976-065C

TypeSatellite

OperatorNRO / SAFSP

Country / StateUS

ManufacturerLMSC/MOTO

BusP-11 CI

Mass194 kg

ProgrammeEHH D

CategorySIG

OrbitLEO (LEO/S)

Altitude598 × 602 km

Inclination96.3°

Frequently asked questions

What happened to P-11 No. 4430?

P-11 No. 4430 re-entered Earth's atmosphere on 1 Jan 1990, ending a mission that began with its launch in 1976. 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. 4430 re-enter the atmosphere?

P-11 No. 4430 re-entered on 1 Jan 1990, according to Orbital Radar's historical catalogue records.

Who operated and built P-11 No. 4430?

P-11 No. 4430 was operated by NRO / SAFSP and built by LMSC/MOTO (US).

Launched together

HEXAGON SV-12Re-entered 1976 S3-3Re-entered 1986

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.

Browse the live satellite directory → Re-entered satellites archive → Launch record: HEXAGON SV-12 → What is space debris? →