Re-entered 2000-07-18Rocket body

THORAD DELTA 1 R/B(2)

NORAD: 9530
COSPAR: 1974-094E

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	2000-07-18
GCAT (J. McDowell)	Re-entered	2000-07-18

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: 752 kg
Dry mass: 99 kg
Total mass with attached parts: 99 kg
Length: 1 m
Diameter: 0.9 m
Span with arrays and booms: 1 m
Shape: Sphere + Cone

From GCAT by Jonathan McDowell (CC BY 4.0), record S09530, checked 2026-11-05. About this source

Launch

Launch date: 1974-11-23
Rocket: Delta 2313
Flight: Skynet 2B
Mission name: Skynet IIB
Launch site: CC, LC17B
Launched by: NASA Goddard Space Flight Center
Rocket performance: Success
Launch designator: 1974-094

From the GCAT launch log, launch 1974-094, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1974-11-23
Re-entered: 2000-07-18
Period: 88.0 min
Inclination: 24.31°
Apogee: 206 km
Perigee: 147 km
Radar cross-section: 1.8643 m²

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

Where it came from

Parent object: THORAD DELTA 1 R/B(1) (NORAD 7550)
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

Debris2 in total, 0 still in orbit
Payload1 in total, 1 still in orbit
Rocket body2 in total, 0 still in orbit