UK 4
Re-entered 12 Dec 1978UK 4 (NORAD 5675, COSPAR 1971-109A) was a UK satellite that re-entered Earth's atmosphere on 12 Dec 1978, launched on 11 Dec 1971 on the UK 4 mission. It was operated by SRC as part of the UK programme. The spacecraft was built by BAC on the UK 4 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.
Lifecycle
Specifications
Frequently asked questions
What happened to UK 4?
UK 4 re-entered Earth's atmosphere on 12 Dec 1978, ending a mission that began with its launch in 1971. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.
When did UK 4 re-enter the atmosphere?
UK 4 re-entered on 12 Dec 1978, according to Orbital Radar's historical catalogue records.
Who operated and built UK 4?
UK 4 was operated by SRC and built by BAC (UK).