Re-entered 1983-07-23Debris

DELTA 1 DEB

NORAD: 5576
COSPAR: 1971-091D

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	1983-07-23
GCAT (J. McDowell)	Re-entered	1983-07-23

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 S05576, checked 2026-11-05. About this source

Launch

Launch date: 1971-10-21
Rocket: Thor Delta N6
Flight: ITOS B
Mission name: ITOS B
Launch site: V, SLC2E
Launched by: NASA Goddard Space Flight Center
Rocket performance: Failure
Launch designator: 1971-091

From the GCAT launch log, launch 1971-091, checked 2026-11-05. About this source

Catalogue record

Object type: Debris
Owner code: US
Launch date: 1971-10-21
Re-entered: 1983-07-23
Period: 88.1 min
Inclination: 103.27°
Apogee: 194 km
Perigee: 166 km
Radar cross-section: 0.0536 m²

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

Where it came from

Parent object: ITOS-B & DELTA 1 R/B (NORAD 5565)

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