Re-entered 1991-08-29Debris

DELTA 1 DEB

NORAD: 21509
COSPAR: 1975-052GE

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.

Is it working?

Sources agree

Source	What it says	Date
CelesTrak SATCAT	Decayed or deorbited	1991-08-29
GCAT (J. McDowell)	Re-entered	1991-08-29

Each line is one source and what it says. Where they disagree, both are shown; OrbitalWiki does not pick a winner.

Spacecraft

Owner: NASA Goddard Space Flight Center

From GCAT by Jonathan McDowell (CC BY 4.0), record S21509, checked 2026-11-05. About this source

Launch

Launch date: 1975-06-12
Rocket: Delta 2910
Flight: Nimbus 6
Mission name: Nimbus F
Launch site: V, SLC2W
Launched by: NASA Goddard Space Flight Center
Rocket performance: Success
Launch designator: 1975-052

From the GCAT launch log, launch 1975-052, checked 2026-11-05. About this source

Catalogue record

Object type: Debris
Owner code: US
Launch date: 1975-06-12
Re-entered: 1991-08-29
Period: 98.1 min
Inclination: 99.19°
Apogee: 795 km
Perigee: 542 km
Radar cross-section: 0.1 m²

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

Where it came from

Parent object: DELTA 1 R/B (NORAD 7946)

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

Everything from this launch

Debris308 in total, 219 still in orbit
Payload1 in total, 1 still in orbit
Rocket body1 in total, 1 still in orbit