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DS-U2-MG No. 1

Re-entered 23 Mar 1970

DS-U2-MG No. 1 (NORAD 4308, COSPAR 1970-006A) was a SU satellite that re-entered Earth's atmosphere on 23 Mar 1970, launched on 20 Jan 1970 on the DS-U2-MG No. 1 mission. It was operated by YUZH as part of the DS-U2-MG programme. The spacecraft was built by YUZH on the DS-U2 bus, with a mass of 265 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.

1970
launched
1970
re-entered
0
years on orbit
265
kg mass

Lifecycle

Launched20 Jan 1970 · on the DS-U2-MG No. 1 mission
Operational13 Mar 1970 · entered service
Retired13 Mar 1970 · end of operational service
Re-entered23 Mar 1970 · atmospheric re-entry — object destroyed

Specifications

NORAD ID4308
COSPAR1970-006A
TypeSatellite
OperatorYUZH
Country / StateSU
ManufacturerYUZH
BusDS-U2
Mass265 kg
ProgrammeDS-U2-MG
CategorySCI
OrbitLEO (LLEO/I)
Altitude259 × 417 km
Inclination71.0°

Frequently asked questions

What happened to DS-U2-MG No. 1?

DS-U2-MG No. 1 re-entered Earth's atmosphere on 23 Mar 1970, ending a mission that began with its launch in 1970. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did DS-U2-MG No. 1 re-enter the atmosphere?

DS-U2-MG No. 1 re-entered on 23 Mar 1970, according to Orbital Radar's historical catalogue records.

Who operated and built DS-U2-MG No. 1?

DS-U2-MG No. 1 was operated by YUZH and built by YUZH (SU).

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