In orbitRocket body

SCOUT X-4 R/B

NORAD: 871
COSPAR: 1964-051B

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.

Spacecraft

Built by: Alleghany Ballistic Laboratories (USN/Hercules Powder Co)
Owner: NASA Langley Research Center
Platform (bus): Altair
Mass at launch: 33 kg
Dry mass: 33 kg
Length: 1.5 m
Diameter: 0.5 m
Span with arrays and booms: 1.5 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S00871, checked 2026-11-05. About this source

Launch

Launch date: 1964-08-25
Rocket: Scout X-4
Flight: Explorer 20
Mission name: NASA S-48
Launch site: Soviet Armed Forces, PALC-D
Launched by: US Air Force Space Systems Division
Rocket performance: Success
Launch designator: 1964-051

From the GCAT launch log, launch 1964-051, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1964-08-25
Period: 102.8 min
Inclination: 79.89°
Apogee: 954 km
Perigee: 828 km
Radar cross-section: 0.949 m²

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

Where it came from

Catalogued pieces that came from it: 1

Everything from this launch

Debris4 in total, 0 still in orbit
Payload1 in total, 1 still in orbit
Rocket body1 in total, 1 still in orbit