DS-P1-I No. 13L

Re-entered 17 Dec 1975

DS-P1-I No. 13L (NORAD 6971, COSPAR 1973-099A) was a SU satellite that re-entered Earth's atmosphere on 17 Dec 1975, launched on 13 Dec 1973 on the DS-P1-I No. 13 mission. It was operated by PVO as part of the DS-P1-I programme. The spacecraft was built by YUZH on the DS-P1 bus, with a mass of 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

1975

re-entered

years on orbit

200

kg mass

Lifecycle

Launched13 Dec 1973 · on the DS-P1-I No. 13 mission

Operational16 Jun 1975 · entered service

Retired16 Jun 1975 · end of operational service

Re-entered17 Dec 1975 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6971

COSPAR1973-099A

TypeSatellite

OperatorPVO

Country / StateSU

ManufacturerYUZH

BusDS-P1

Mass200 kg

ProgrammeDS-P1-I

CategoryCAL

OrbitLEO (LLEO/I)

Altitude267 × 818 km

Inclination71.0°

Frequently asked questions

What happened to DS-P1-I No. 13L?

DS-P1-I No. 13L re-entered Earth's atmosphere on 17 Dec 1975, 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 DS-P1-I No. 13L re-enter the atmosphere?

DS-P1-I No. 13L re-entered on 17 Dec 1975, according to Orbital Radar's historical catalogue records.

Who operated and built DS-P1-I No. 13L?

DS-P1-I No. 13L was operated by PVO 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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