In orbitDebris

THOR BURNER 2A DEB

NORAD: 29139
COSPAR: 1974-015F

OrbitalWiki publishes live orbits for active satellites only. This object is in the full catalogue: who launched it, what it is and its last published orbit are below, but there are no current orbital elements for it here.

Spacecraft

Built by: Boeing Space Center, Kent
Owner: US Air Force Space and Missile Center

From GCAT by Jonathan McDowell (CC BY 4.0), record S29139, checked 2026-11-05. About this source

Launch

Launch date: 1974-03-16
Rocket: Thor Burner 2A
Flight: DMSP 8531
Mission name: DMSP Block 5B F-5
Launch site: V, SLC10W
Launched by: USAF Aerospace Defence Command, 10th Aerospace Defence Sqn.
Rocket performance: Success
Launch designator: 1974-015

From the GCAT launch log, launch 1974-015, checked 2026-11-05. About this source

Catalogue record

Object type: Debris
Owner code: US
Launch date: 1974-03-16
Period: 100.3 min
Inclination: 99.10°
Apogee: 815 km
Perigee: 729 km
Radar cross-section: 0.0042 m²

From CelesTrak SATCAT, checked 2026-11-05. About this source

Where it came from

Parent object: THOR BURNER 2A R/B (NORAD 7219)

The object this one was attached to at launch, or broke off from, as GCAT records it.

Everything from this launch

Debris6 in total, 4 still in orbit
Payload1 in total, 1 still in orbit
Rocket body1 in total, 1 still in orbit