Explorer 47

American satellite. Explorer 47 was launched on September 23, 1972 aboard a Delta 1604 from Cape Canaveral & Kennedy. Latest status in GCAT: left Earth orbit for deep space (Sep 23, 1972).

COSPAR 1972-073ANORAD 6197United States

Identity

Name in GCAT: IMP 7
Common name: Explorer 47
Payload designation: IMP H
Other names: Explorer 47
International designator: 1972-073A
NORAD catalog number: 6197
GCAT identifier: S06197
UN registration: A/AC.105/INF.265

Mission

Mission type: Space science
Use: Civil government
Program: IMP
Owner: GSFC
Country: United States
Builder: NASA Goddard Space Flight Center
Platform (bus): IMP

Launch

Date: September 23, 1972 · 01:20 UTC
Launch record: 1972-073Success
Rocket: Delta 1604
Spaceport: Cape Canaveral & Kennedy · pad LC17B

Orbit and fate

Orbit class (GCAT): DSO
Perigee: 201,100 km
Apogee: 235,600 km
Inclination: 17.20°
Status: Left Earth orbit for deep space
Status date: September 23, 1972
Last known active: Oct 31, 1978
End of operations: Oct 31, 1978

Size

Mass: 266 kg
Dry mass: 266 kg
Total mass with attached objects: 390 kg
Length: 1.6 m
Diameter: 1.40 m
Span: 8.2 m

Deep space

Deep-space catalog entry: D00983
Final central body: Earth
Phase start: September 23, 1972
Phase outcome: In orbit

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12014181 (CC0).