Mars-4
Re-entered 22 Jul 1973Mars-4 (NORAD 6742, COSPAR 1973-047A) was a SU satellite that re-entered Earth's atmosphere on 22 Jul 1973, launched on 21 Jul 1973 on the 3MS No. 52S mission. It is catalogued as 3MS No. 52S. It was operated by IKI / Babakin as part of the 3M programme. The spacecraft was built by NPOL on the Mars bus, with a mass of 3,440 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 Mars-4?
Mars-4 re-entered Earth's atmosphere on 22 Jul 1973, ending a mission that began with its launch in 1973. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.
When did Mars-4 re-enter the atmosphere?
Mars-4 re-entered on 22 Jul 1973, according to Orbital Radar's historical catalogue records.
Who operated and built Mars-4?
Mars-4 was operated by IKI / Babakin and built by NPOL (SU).