P-11 No. 4424
Re-entered 17 Apr 1979P-11 No. 4424 (NORAD 5772, COSPAR 1972-002D) was a US satellite that re-entered Earth's atmosphere on 17 Apr 1979, launched on 20 Jan 1972 on the HEXAGON SV-2 mission. It was operated by NRO / SAFSP as part of the EHH B programme. The spacecraft was built by LMSC/ESL1 on the P-11 H bus, with a mass of 162 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. 4424?
P-11 No. 4424 re-entered Earth's atmosphere on 17 Apr 1979, ending a mission that began with its launch in 1972. 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. 4424 re-enter the atmosphere?
P-11 No. 4424 re-entered on 17 Apr 1979, according to Orbital Radar's historical catalogue records.
Who operated and built P-11 No. 4424?
P-11 No. 4424 was operated by NRO / SAFSP and built by LMSC/ESL1 (US).