Re-entered 1990-05-28Rocket body

DELTA 1 R/B(2)

NORAD: 13939
COSPAR: 1973-023C

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	1990-05-28
GCAT (J. McDowell)	Re-entered	1990-05-28

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: 1,047 kg
Dry mass: 83 kg
Total mass with attached parts: 83 kg
Length: 1.9 m
Diameter: 0.9 m
Span with arrays and booms: 1.9 m
Shape: Sphere + Cone

From GCAT by Jonathan McDowell (CC BY 4.0), record S13939, checked 2026-11-05. About this source

Launch

Launch date: 1973-04-20
Rocket: Delta 1914
Flight: Anik A2
Mission name: Anik A2
Launch site: CC, LC17B
Launched by: NASA Goddard Space Flight Center
Rocket performance: Success
Launch designator: 1973-023

From the GCAT launch log, launch 1973-023, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1973-04-20
Re-entered: 1990-05-28
Period: 89.4 min
Inclination: 26.17°
Apogee: 366 km
Perigee: 119 km
Radar cross-section: 5.92 m²

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

Where it came from

Parent object: DELTA 1 R/B(1) (NORAD 6438)
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

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