Pion-4
Re-entered 19 Sep 1989Pion-4 (NORAD 20161, COSPAR 1989-055D) was a SU satellite that re-entered Earth's atmosphere on 19 Sep 1989, launched on 18 Jul 1989 on the Resurs-F1 14F43 No. 47 mission. It was operated by KAIK / MOM as part of the Pion programme. The spacecraft was built by KAIK on the Pion bus, with a mass of 78 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 Pion-4?
Pion-4 re-entered Earth's atmosphere on 19 Sep 1989, ending a mission that began with its launch in 1989. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.
When did Pion-4 re-enter the atmosphere?
Pion-4 re-entered on 19 Sep 1989, according to Orbital Radar's historical catalogue records.
Who operated and built Pion-4?
Pion-4 was operated by KAIK / MOM and built by KAIK (SU).