Showing default

EXPLORER 11, 107

Orbit data source: Space-Track

EXPLORER 11, 107 is a payload satellite owned by GSFC (US) in LEO that was launched on Thu, 27 Apr 1961 UTC via a JUNO II launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

Loading next visibility...
Identifier
107, 1961-013A
Orbit
LEO
Country
Flag of USUS
Related business
Manufacturer
NASA MSFC
Mission
Spacecraft
Bus & Motor
S-15, Unknown motor
Mass
45 kg wet, 40 kg dry
Launch date (UTC)
1961-04-27 (65 years ago)
Launch vehicle
JUNO II
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
STEP CYL, 0.6 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago
0 EXPLORER 11
1 00107U 61013A   26206.98505790  .00003277  00000-0  38302-3 0  9996
2 00107  28.7757  92.6917 0492473 130.8110 233.6252 14.22375464282028
Epoch: 2026-07-25T23:38Z
TLE epoch observation values (Epoch: 2026-07-25T23:38:29.002Z)
Latitude
-0.00004°
Longitude
154.3813°
Altitude
1,036.614 km
Speed
7.223 km/s
True Right ascension
06h 10m 45s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
N/A
Visualization observer readout
Local Sidereal Time
15:53:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,175.899 km
Perigee altitude
466.789 km
Semi-major axis
7,199.481 km
Eccentricity
0.04925
Inclination
28.7757°
RAAN
92.6917°
Arg. of periapsis
130.811°
True anomaly
229.24595°
Mean anomaly
233.6252°
Eccentric anomaly
231.41942°
Mean motion
3.55297 °/min
Orbital period
101.32 mins
BSTAR
0.00038302
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #13 in the year 1961 (1961-04-27 UTC)

Documentation

Showing up to 5 results
|