DS-U2-IK No. 5 (Mag)

Re-entered 2 Sep 1980

DS-U2-IK No. 5 (Mag) (NORAD 7710, COSPAR 1975-022A) was a SU satellite that re-entered Earth's atmosphere on 2 Sep 1980, launched on 27 Mar 1975 on the DS-U2-IK No. 5 mission. It was operated by IK as part of the DS-U2-IK programme. The spacecraft was built by YUZH on the DS-U2 bus, with a mass of 320 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.

1975

launched

1980

re-entered

years on orbit

320

kg mass

Lifecycle

Launched27 Mar 1975 · on the DS-U2-IK No. 5 mission

Operational21 Jun 1975 · entered service

Retired21 Jun 1975 · end of operational service

Re-entered2 Sep 1980 · atmospheric re-entry — object destroyed

Specifications

NORAD ID7710

COSPAR1975-022A

TypeSatellite

OperatorIK

Country / StateSU

ManufacturerYUZH

BusDS-U2

Mass320 kg

ProgrammeDS-U2-IK

CategorySCI

OrbitLEO (LEO/I)

Altitude285 × 1,679 km

Inclination83.0°

Frequently asked questions

What happened to DS-U2-IK No. 5 (Mag)?

DS-U2-IK No. 5 (Mag) re-entered Earth's atmosphere on 2 Sep 1980, ending a mission that began with its launch in 1975. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did DS-U2-IK No. 5 (Mag) re-enter the atmosphere?

DS-U2-IK No. 5 (Mag) re-entered on 2 Sep 1980, according to Orbital Radar's historical catalogue records.

Who operated and built DS-U2-IK No. 5 (Mag)?

DS-U2-IK No. 5 (Mag) was operated by IK and built by YUZH (SU).

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

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