2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. Geophysical Research Satellite
// space science · 1963

Geophysical Research Satellite

American research satellite. Geophysical Research Satellite was launched on June 28, 1963 aboard a Scout X-4 from Wallops. Latest status in GCAT: reentered attached to another object (Dec 14, 1983).

COSPAR 1963-026ANORAD 612United States

Identity

Name in GCAT
GRS
Common name
Geophysical Research Satellite
Payload designation
AFCRL A
International designator
1963-026A
NORAD catalog number
612
GCAT identifier
S00612
UN registration
A/AC.105/INF.043

Mission

Mission type
Space science
Use
Civil government
Program
AFCRL
Owner
AFCRL
Country
United States
Builder
US Air Force Cambridge Research Laboratories
Platform (bus)
GRS

Launch

Date
June 28, 1963 · 21:19 UTC
Launch record
1963-026Success
Rocket
Scout X-4
Spaceport
Wallops · pad LA3

Orbit and fate

Orbit class (GCAT)
LEO/I
Perigee
421 km
Apogee
1,298 km
Inclination
49.74°
Status
Reentered attached to another object
Status date
December 14, 1983
Last known active
Jun 29, 1963
End of operations
Jun 29, 1963

Size

Mass
66 kg
Dry mass
66 kg
Total mass with attached objects
99 kg
Length
1.0 m
Diameter
0.50 m
Span
1.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q10301259 (CC0).