DS-P1-Yu No. 53L

Re-entered 20 Apr 1972

DS-P1-Yu No. 53L (NORAD 5623, COSPAR 1971-101A) was a SU satellite that re-entered Earth's atmosphere on 20 Apr 1972, launched on 29 Nov 1971 on the DS-P1-Yu No. 53 mission. It was operated by PVO as part of the DS-P1-Yu A 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.

1971

launched

1972

re-entered

year on orbit

200

kg mass

Lifecycle

Launched29 Nov 1971 · on the DS-P1-Yu No. 53 mission

Operational20 Apr 1972 · entered service

Retired20 Apr 1972 · end of operational service

Re-entered20 Apr 1972 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5623

COSPAR1971-101A

TypeSatellite

OperatorPVO

Country / StateSU

ManufacturerYUZH

BusDS-P1

Mass200 kg

ProgrammeDS-P1-Yu A

CategoryCAL

OrbitLEO (LLEO/I)

Altitude266 × 473 km

Inclination71.0°

Frequently asked questions

What happened to DS-P1-Yu No. 53L?

DS-P1-Yu No. 53L re-entered Earth's atmosphere on 20 Apr 1972, ending a mission that began with its launch in 1971. 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. 53L re-enter the atmosphere?

DS-P1-Yu No. 53L re-entered on 20 Apr 1972, according to Orbital Radar's historical catalogue records.

Who operated and built DS-P1-Yu No. 53L?

DS-P1-Yu No. 53L 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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