Re-entered 1981-10-19Rocket body

DELTA 1 R/B(2)

NORAD: 11072
COSPAR: 1977-118D

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	1981-10-19
GCAT (J. McDowell)	Re-entered	1981-10-09

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

Spacecraft

Built by: Thiokol-Elkton
Owner: NASA Goddard Space Flight Center
Platform (bus): Star 37
Mass at launch: 1,123 kg(estimate, good to about 20%)
Dry mass: 83 kg
Total mass with attached parts: 83 kg(estimate, good to about 20%)
Length: 1.7 m
Diameter: 0.9 m
Span with arrays and booms: 1.7 m
Shape: Sphere + Cone

From GCAT by Jonathan McDowell (CC BY 4.0), record S11072, checked 2026-11-05. About this source

Launch

Launch date: 1977-12-15
Rocket: Delta 2914
Flight: CS
Mission name: CS
Launch site: CC, LC17B
Launched by: NASA Goddard Space Flight Center
Rocket performance: Success
Launch designator: 1977-118

From the GCAT launch log, launch 1977-118, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1977-12-15
Re-entered: 1981-10-19
Period: 92.5 min
Inclination: 28.28°
Apogee: 646 km
Perigee: 150 km

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

Where it came from

Parent object: DELTA 1 R/B(1) (NORAD 10517)
Catalogued pieces that came from it: 1

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

Everything from this launch

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