Key statistics
Satellite EXPLORER 40 (INJUN-5) at a glance.
Uptime
20727
Days in orbit
Revolutions
≈ 12.2
Per day
Orbit
MEO
Medium Earth Orbit
Inclination
80.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for EXPLORER 40 (INJUN-5).
Object identification
Identified? True
Debris? False
Object name: EXPLORER 40 (INJUN-5)
International designator: 1968-066B
Object number (NORAD): 3338
Object ID (CCSDS): 3338
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 117.702 minutes
Inclination: 80.6652 deg
SMA: 7955.787 km
Apoapsis: 2477.597 km
Periapsis: 677.706 km
RAAN: 36.8741 deg
Eccentricy: 0.1131184
Argument of periapsis: 50.5195 deg
Mean anomaly: 319.0537 deg
Mean motion: 12.23427049 rev/day
Mean motion (dot): 0.00000299 rev/day2
B* drag term: 0.00030209 1/REarth
Two-line elements (TLE)
Creation date: May 8, 2025, 3:01 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 7, 2025, 8:37 p.m. UTC
TLE line 0: 0 EXPLORER 40 (INJUN-5)
TLE line 1: 1 03338U 68066B 25127.85906381 .00000299 00000-0 30209-3 0 9997
TLE line 2: 2 03338 80.6652 36.8741 1131184 50.5195 319.0537 12.23427049528747
Live tracking on map
Real-time ground track for satellite EXPLORER 40 (INJUN-5).
In-orbit conjunctions
A list of the most updated potential collisions computed for object EXPLORER 40 (INJUN-5).
Associated space launch
Explorer 39 was an inflatable sphere, 3.6 m in diameter. It was orbited to make atmospheric density determinations.
EXPLORER 40 (INJUN-5) was lifted into orbit during the mission ‘Scout B | Explorer 39’, on board a Scout B space rocket.
The launch took place on Aug. 8, 1968, 8:12 p.m. from Space Launch Complex 5.
For more information about the launch, click the button.
Scout B | Explorer 39
Agency: N/A
Status: Launch Successful
Launch date: Aug. 8, 1968, 8:12 p.m. UTC
Rocket: Scout B
Launch pad: Space Launch Complex 5
Location: Vandenberg SFB, CA, USA
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