HomeLibraryRe-entered SatellitesDS-P1-Yu No. 50L
🛰️ SATELLITE · HISTORICAL RECORD

DS-P1-Yu No. 50L

Re-entered 9 May 1974

DS-P1-Yu No. 50L (NORAD 6099, COSPAR 1972-054A) was a SU satellite that re-entered Earth's atmosphere on 9 May 1974, launched on 12 Jul 1972 on the DS-P1-Yu No. 50 mission. It was operated by PVO as part of the DS-P1-Yu C 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.

1972
launched
1974
re-entered
2
years on orbit
200
kg mass

Lifecycle

Launched12 Jul 1972 · on the DS-P1-Yu No. 50 mission
Operational20 Dec 1973 · entered service
Retired20 Dec 1973 · end of operational service
Re-entered9 May 1974 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6099
COSPAR1972-054A
TypeSatellite
OperatorPVO
Country / StateSU
ManufacturerYUZH
BusDS-P1
Mass200 kg
ProgrammeDS-P1-Yu C
CategoryCAL
OrbitLEO (LEO/I)
Altitude215 × 2,072 km
Inclination48.4°

Frequently asked questions

What happened to DS-P1-Yu No. 50L?

DS-P1-Yu No. 50L re-entered Earth's atmosphere on 9 May 1974, ending a mission that began with its launch in 1972. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did DS-P1-Yu No. 50L re-enter the atmosphere?

DS-P1-Yu No. 50L re-entered on 9 May 1974, according to Orbital Radar's historical catalogue records.

Who operated and built DS-P1-Yu No. 50L?

DS-P1-Yu No. 50L 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.