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Zenit-4MT No. 4L

Re-entered 9 Jul 1973

Zenit-4MT No. 4L (NORAD 6713, COSPAR 1973-044A) was a SU satellite that re-entered Earth's atmosphere on 9 Jul 1973, launched on 27 Jun 1973 on the Zenit-4MT mission. It was operated by TSKBE3 as part of the Orion programme. The spacecraft was built by TSKBE3 on the Zenit-4MT bus, with a mass of 2,200 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.

1973
launched
1973
re-entered
0
years on orbit
2,200
kg mass

Lifecycle

Launched27 Jun 1973 · on the Zenit-4MT mission
Operational9 Jul 1973 · entered service
Retired9 Jul 1973 · end of operational service
Re-entered9 Jul 1973 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6713
COSPAR1973-044A
TypeSatellite
OperatorTSKBE3
Country / StateSU
ManufacturerTSKBE3
BusZenit-4MT
Mass2,200 kg
ProgrammeOrion
CategoryIMG
OrbitLEO (LLEO/I)
Altitude202 × 330 km
Inclination72.9°

Frequently asked questions

What happened to Zenit-4MT No. 4L?

Zenit-4MT No. 4L re-entered Earth's atmosphere on 9 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 Zenit-4MT No. 4L re-enter the atmosphere?

Zenit-4MT No. 4L re-entered on 9 Jul 1973, according to Orbital Radar's historical catalogue records.

Who operated and built Zenit-4MT No. 4L?

Zenit-4MT No. 4L was operated by TSKBE3 and built by TSKBE3 (SU).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.