Program

Injun

Payloads: 5
In orbit: 3
Operational (CelesTrak): 0
Re-entered: 2
First launch: 1961-06-29
Latest launch: 1974-06-03

Owners

NASA Langley Research Center3
Naval Research Lab1
ONR/SUI1

Built by

University of Iowa (=SUI)2
BENDX/UIA1
SUI/APL1
SUI/NRL1

Payloads in this program

Name	NORAD	Launch date	Status
SOLRAD 3 & INJUN 1	117	1961-06-29	-
INJUN 3	504	1962-12-13	Re-entered 1968-08-25
EXPLORER 25 (INJUN 4)	932	1964-11-21	-
EXPLORER 40 (INJUN 5)	3338	1968-08-08	-
EXPLORER 52 (HAWKEYE)	7325	1974-06-03	Re-entered 1978-04-30

From GCAT by Jonathan McDowell (CC BY 4.0). Roles are counted from the catalogue itself, not from GCAT type labels, which GCAT describes as patchy. About this source