Key statistics
Satellite EXPLORER 11 at a glance.
Uptime
23511
Days in orbit
Revolutions
≈ 14.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
28.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for EXPLORER 11.
Object identification
Identified? True
Debris? False
Object name: EXPLORER 11
International designator: 1961-013A
Object number (NORAD): 107
Object ID (CCSDS): 107
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 101.398 minutes
Inclination: 28.7879 deg
SMA: 7202.996 km
Apoapsis: 1186.872 km
Periapsis: 462.85 km
RAAN: 139.4461 deg
Eccentricy: 0.0502584
Argument of periapsis: 19.2743 deg
Mean anomaly: 342.6139 deg
Mean motion: 14.20146067 rev/day
Mean motion (dot): 0.00005408 rev/day2
B* drag term: 0.00065275614 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 6:18 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 8, 2025, 8:16 a.m. UTC
TLE line 0: 0 EXPLORER 11
TLE line 1: 1 00107U 61013A 25251.34471379 .00005408 00000-0 65276-3 0 9998
TLE line 2: 2 00107 28.7879 139.4461 0502584 19.2743 342.6139 14.20146067236368
Live tracking on map
Real-time ground track for satellite EXPLORER 11.
In-orbit conjunctions
A list of the most updated potential collisions computed for object EXPLORER 11.
Associated space launch
EXPLORER 11 was lifted into orbit during the mission ‘Juno II | Explorer 11’, on board a Juno II space rocket.
The launch took place on April 27, 1961, 2:16 p.m. from Launch Complex 26B.
For more information about the launch, click the button.
Juno II | Explorer 11
Agency: N/A
Status: Launch Successful
Launch date: April 27, 1961, 2:16 p.m. UTC
Rocket: Juno II
Launch pad: Launch Complex 26B
Location: Cape Canaveral SFS, FL, USA
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