In orbitRocket body

DELTA 2 R/B

NORAD: 21048
COSPAR: 1991-001B

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: McDonnell Douglas Astronautics/HB
Owner: McDonnell Douglas Astronautics/HB
Platform (bus): Delta/0020
Mass at launch: 6,930 kg
Dry mass: 919 kg
Total mass with attached parts: 919 kg
Length: 7 m
Diameter: 2.4 m
Span with arrays and booms: 7 m
Shape: Cyl + Cone

From GCAT by Jonathan McDowell (CC BY 4.0), record S21048, checked 2026-11-05. About this source

Launch

Launch date: 1991-01-08
Rocket: Delta 7925
Flight: NATO 4A
Mission name: NATO 4A
Launch site: CC, LC17B
Launched by: McDonnell Douglas/HB
Rocket performance: Success
Launch designator: 1991-001

From the GCAT launch log, launch 1991-001, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1991-01-08
Period: 121.5 min
Inclination: 18.46°
Apogee: 2,712 km
Perigee: 781 km
Radar cross-section: 10.2294 m²

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

Where it came from

Catalogued pieces that came from it: 2

Everything from this launch

Debris1 in total, 0 still in orbit
Payload1 in total, 1 still in orbit
Rocket body2 in total, 2 still in orbit