DS-P1-Yu No. 66L

Re-entered 7 Jan 1974

DS-P1-Yu No. 66L (NORAD 6665, COSPAR 1973-035A) was a SU satellite that re-entered Earth's atmosphere on 7 Jan 1974, launched on 5 Jun 1973 on the DS-P1-Yu No. 66 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.

1973

launched

1974

re-entered

year on orbit

200

kg mass

Lifecycle

Launched5 Jun 1973 · on the DS-P1-Yu No. 66 mission

Operational7 Jan 1974 · entered service

Retired7 Jan 1974 · end of operational service

Re-entered7 Jan 1974 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6665

COSPAR1973-035A

TypeSatellite

OperatorPVO

Country / StateSU

ManufacturerYUZH

BusDS-P1

Mass200 kg

ProgrammeDS-P1-Yu A

CategoryCAL

OrbitLEO (LLEO/I)

Altitude267 × 464 km

Inclination71.0°

Frequently asked questions

What happened to DS-P1-Yu No. 66L?

DS-P1-Yu No. 66L re-entered Earth's atmosphere on 7 Jan 1974, 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-Yu No. 66L re-enter the atmosphere?

DS-P1-Yu No. 66L re-entered on 7 Jan 1974, according to Orbital Radar's historical catalogue records.

Who operated and built DS-P1-Yu No. 66L?

DS-P1-Yu No. 66L 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.

Browse the live satellite directory → Re-entered satellites archive → Launch record: DS-P1-Yu No. 66 → What is space debris? →