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// optical imaging · 1961

Discoverer 31

Discoverer 31 was launched on September 17, 1961 aboard a Thor Agena B from Vandenberg. Latest status in GCAT: reentered attached to another object (Oct 26, 1961).

COSPAR 1961 A BETNORAD 186United States

Identity

Name in GCAT
Discoverer 31
Payload designation
CORONA C'''-3
Other names
:C,:CC,NRO Mission 9024:CM,CORONA 31:CA
International designator
1961 A BET
NORAD catalog number
186
GCAT identifier
S00186

Mission

Mission type
Optical imaging
Use
Defense
Program
CORONA Early
Owner
NRO
Country
United States
Builder
Lockheed Missiles and Space Co.
Platform (bus)
CORONA

Launch

Date
September 17, 1961 · 21:00 UTC
Launch record
1961 A BETSuccess
Spaceport
Vandenberg · pad 75-1-1

Orbit and fate

Orbit class (GCAT)
LLEO/I
Perigee
233 km
Apogee
380 km
Inclination
82.70°
Status
Reentered attached to another object
Status date
October 26, 1961
Last known active
Sep 19, 1961
End of operations
Sep 19, 1961

Size

Mass
123 kg
Dry mass
123 kg
Total mass with attached objects
1,153 kg
Length
1.3 m
Diameter
1.50 m
Span
1.3 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q5281815 (CC0).