CORONA M-21
Re-entered 12 Jul 1963CORONA M-21 (NORAD 590, COSPAR 1963-019A) was a US satellite that re-entered Earth's atmosphere on 12 Jul 1963, launched on 12 Jun 1963 on the CORONA M-21 mission. It was operated by NRO / CIA as part of the CORONA M programme. The spacecraft was built by LMSC on the CORONA KH-4 bus, with a mass of 468 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 CORONA M-21?
CORONA M-21 re-entered Earth's atmosphere on 12 Jul 1963, 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 CORONA M-21 re-enter the atmosphere?
CORONA M-21 re-entered on 12 Jul 1963, according to Orbital Radar's historical catalogue records.
Who operated and built CORONA M-21?
CORONA M-21 was operated by NRO / CIA and built by LMSC (US).