ESRO 4
Re-entered 15 Apr 1974ESRO 4 (NORAD 6285, COSPAR 1972-092A) was a I-ESRO satellite that re-entered Earth's atmosphere on 15 Apr 1974, launched on 22 Nov 1972 on the ESRO 4 mission. It was operated by ESRO as part of the ESRO programme. The spacecraft was built by HSD on the ESRO 2 bus, with a mass of 115 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 ESRO 4?
ESRO 4 re-entered Earth's atmosphere on 15 Apr 1974, 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 ESRO 4 re-enter the atmosphere?
ESRO 4 re-entered on 15 Apr 1974, according to Orbital Radar's historical catalogue records.
Who operated and built ESRO 4?
ESRO 4 was operated by ESRO and built by HSD (I-ESRO).