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// missile early warning · 1961

MIDAS 4

American early-warning satellite. MIDAS 4 was launched on October 21, 1961 aboard a Atlas Agena B from Vandenberg. Latest status in GCAT: in orbit, attached to another object.

COSPAR 1961 A DEL 1NORAD 192United States

Identity

Name in GCAT
Midas 4
Common name
MIDAS 4
Payload designation
Midas ETS-II F2
Other names
FTV 1202
International designator
1961 A DEL 1
NORAD catalog number
192
GCAT identifier
S00192
UN registration
A/AC.105/INF.001

Mission

Mission type
Missile early warning
Use
Defense
Program
Midas ETS-II
Country
United States
Builder
Lockheed Missiles and Space Co.
Platform (bus)
Midas

Launch

Date
October 21, 1961 · 13:53 UTC
Launch record
1961 A DELSuccess
Spaceport
Vandenberg · pad LC1-2

Orbit and fate

Orbit class (GCAT)
MEO
Perigee
3,503 km
Apogee
3,747 km
Inclination
95.90°
Status
In orbit, attached to another object
Last known active
Oct 31, 1961
End of operations
Oct 31, 1961

Size

Mass
840 kg
Dry mass
840 kg
Total mass with attached objects
1,540 kg
Length
2.0 m
Diameter
1.50 m
Span
2.0 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q11764912 (CC0).