P-11 No. 4429
Re-entered 23 Jan 1980P-11 No. 4429 (NORAD 7498, COSPAR 1974-085B) was a US satellite that re-entered Earth's atmosphere on 23 Jan 1980, launched on 29 Oct 1974 on the HEXAGON SV-9 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/ESYS on the P-11 CI bus, with a mass of 210 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.
Lifecycle
Specifications
Frequently asked questions
What happened to P-11 No. 4429?
P-11 No. 4429 re-entered Earth's atmosphere on 23 Jan 1980, ending a mission that began with its launch in 1974. 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. 4429 re-enter the atmosphere?
P-11 No. 4429 re-entered on 23 Jan 1980, according to Orbital Radar's historical catalogue records.
Who operated and built P-11 No. 4429?
P-11 No. 4429 was operated by NRO / SAFSP and built by LMSC/ESYS (US).