DS-U2-IP No. 1

Re-entered 17 Aug 1972

DS-U2-IP No. 1 (NORAD 4713, COSPAR 1970-097A) was a SU satellite that re-entered Earth's atmosphere on 17 Aug 1972, launched on 17 Nov 1970 on the DS-U2-IP No. 1 mission. It was operated by YUZH as part of the DS-U2-IP programme. The spacecraft was built by YUZH on the DS-U2 bus, with a mass of 281 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

1972

re-entered

years on orbit

281

kg mass

Lifecycle

Launched17 Nov 1970 · on the DS-U2-IP No. 1 mission

Operational13 Sep 1971 · entered service

Retired13 Sep 1971 · end of operational service

Re-entered17 Aug 1972 · atmospheric re-entry — object destroyed

Specifications

NORAD ID4713

COSPAR1970-097A

TypeSatellite

OperatorYUZH

Country / StateSU

ManufacturerYUZH

BusDS-U2

Mass281 kg

ProgrammeDS-U2-IP

CategorySCI

OrbitLEO (LEO/I)

Altitude233 × 1,697 km

Inclination74.0°

Frequently asked questions

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

DS-U2-IP No. 1 re-entered Earth's atmosphere on 17 Aug 1972, 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-IP No. 1 re-enter the atmosphere?

DS-U2-IP No. 1 re-entered on 17 Aug 1972, according to Orbital Radar's historical catalogue records.

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

DS-U2-IP 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.

Browse the live satellite directory → Re-entered satellites archive → Launch record: DS-U2-IP No. 1 → What is space debris? →