Success
Explorer 21
Astrophysics
United States Air Force(USAF)Government
Thor Delta C
Ellipticalorbit
Explorer 21 (IMP 2) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.
Sunday, October 4, 1964 at 3:45 AM
Mission details
Orbital Attempt
#363
USAF Mission
#214
Pad Launch
#25
Location Launch
#121
Designator
1964-060
Launch Window
NET
Oct 4, 1964, 3:45 AM
Schedule Changes
1 update
Thor Delta C Specs
American orbital launch vehicle family with Thor first stage and a delta second stage.
Length
27.5 m
Diameter
2.44 m
Launch Mass
52 t
Thrust
667 kN
LEO Capacity
81 kg
Reusable
No
Maiden Flight
1963
Fastest Turnaround
12d 8h
Total Launches
10
Successful
8
Failed
2
Consecutive Success
2
Maiden flight: Nov 27, 1963
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established as a separate branch of the United States Armed Forces in 1947 with the enactment of the National Security Act of 1947.
Founded
1947
Administrator
Commander-in-Chief: President of the US
Total Launches
1,078
Successful
972
Failed
106
Pending
0
Consecutive Success
68
Cape Canaveral SFS, FL, USA
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Timezone
America/New_York
Local Launch Time
Oct 3, 1964, 11:45 PM
Total Launches
1,109
Total Landings
75
Coordinates
28.4889, -80.5778