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🛰️ SATELLITE · HISTORICAL RECORD

OV4-1T

Re-entered 11 Jan 1967

OV4-1T (NORAD 2528, COSPAR 1966-099D) was a US satellite that re-entered Earth's atmosphere on 11 Jan 1967, launched on 3 Nov 1966 on the OV4-3 mission. It was operated by OAR / AFSSD as part of the OV4 programme. The spacecraft was built by RAYTH on the OV4 bus, with a mass of 114 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.

1966
launched
1967
re-entered
1
year on orbit
114
kg mass

Lifecycle

Launched3 Nov 1966 · on the OV4-3 mission
Operational1 Dec 1966 · entered service
Retired1 Dec 1966 · end of operational service
Re-entered11 Jan 1967 · atmospheric re-entry — object destroyed

Specifications

NORAD ID2528
COSPAR1966-099D
TypeSatellite
OperatorOAR / AFSSD
Country / StateUS
ManufacturerRAYTH
BusOV4
Mass114 kg (109 kg dry)
ProgrammeOV4
CategoryTECH
OrbitLEO (LLEO/I)
Altitude276 × 300 km
Inclination32.8°

Frequently asked questions

What happened to OV4-1T?

OV4-1T re-entered Earth's atmosphere on 11 Jan 1967, ending a mission that began with its launch in 1966. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did OV4-1T re-enter the atmosphere?

OV4-1T re-entered on 11 Jan 1967, according to Orbital Radar's historical catalogue records.

Who operated and built OV4-1T?

OV4-1T was operated by OAR / AFSSD and built by RAYTH (US).

Launched together

OV4-3Re-entered 1967OV4-1RRe-entered 1967OV1-6SRe-entered 1966
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: OV4-3 → What is space debris? →