Re-entered 1981-03-28Rocket body

DELTA 1 R/B(2)

NORAD: 11637
COSPAR: 1979-101C

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	1981-03-28
GCAT (J. McDowell)	Re-entered	1980-03-27

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 S11637, checked 2026-11-05. About this source

Launch

Launch date: 1979-12-07
Rocket: Delta 3914
Flight: Satcom 3
Mission name: RCA-C
Launch site: CC, LC17A
Launched by: NASA Goddard Space Flight Center
Rocket performance: Success
Launch designator: 1979-101

From the GCAT launch log, launch 1979-101, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1979-12-07
Re-entered: 1981-03-28
Period: 135.6 min
Inclination: 23.39°
Apogee: 4,600 km
Perigee: 126 km

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

Where it came from

Parent object: DELTA 1 R/B(1) (NORAD 11636)

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

Everything from this launch

Debris26 in total, 26 still in orbit
Payload1 in total, 1 still in orbit
Rocket body2 in total, 1 still in orbit