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// astronomy · 1973

Explorer 49

Satellite launched by NASA for long range radio astronomy. Explorer 49 was launched on June 10, 1973 aboard a Delta 1913 from Cape Canaveral & Kennedy. Latest status in GCAT: left Earth orbit for deep space (Jun 11, 1973).

COSPAR 1973-039ANORAD 6686United States

Identity

Name in GCAT
RAE 2
Common name
Explorer 49
Payload designation
RAE B
Other names
Explorer 49
International designator
1973-039A
NORAD catalog number
6686
GCAT identifier
S06686
UN registration
A/AC.105/INF.279

Mission

Mission type
Astronomy
Use
Civil government
Program
Explorer RAE
Owner
GSFC
Country
United States
Builder
NASA Goddard Space Flight Center
Platform (bus)
RAE

Launch

Date
June 10, 1973 · 14:13 UTC
Launch record
1973-039Success
Rocket
Delta 1913
Spaceport
Cape Canaveral & Kennedy · pad LC17B

Orbit and fate

Orbit class (GCAT)
CLO
Perigee
182 km
Apogee
390,244 km
Inclination
29.10°
Status
Left Earth orbit for deep space
Status date
June 11, 1973
Last known active
Apr 30, 1977
End of operations
Apr 30, 1977

Size

Mass
200 kg
Dry mass
200 kg
Total mass with attached objects
331 kg
Length
0.8 m
Diameter
0.90 m
Span
457.0 m

Deep space

Deep-space catalog entry
D00492
Final central body
Luna
Phase start
June 13, 1973
Phase outcome
Entered orbit around the target · June 15, 1973

Flight phases

FromCentral bodyEndedOutcomeNext
Jun 11, 1973EarthJun 13, 1973Escaped to another bodyLuna
Jun 15, 1973Luna—In orbit—

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q1781732 (CC0).