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DOY 173 | 2024-06-21T03:48:50Z
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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). Payloads include a variety of satellites, spacecraft, and rockets 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.

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EXPLORER 11 details
NORAD ID107
COSPAR ID
1961-013A
Orbit
LEO
Last TLE update1 day ago
Origin
Flag of USGSFC (US)
ManufacturerNASA MSFC
BusS-15
MotorUnknown
Mass45 kg wet, 40 kg dry
Launch date (UTC)
1961-04-27 (63 years ago)
Launch vehicle
Juno II
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Radar Cross Section0.47 m², Medium (>0.1 m² and < 1m²)
Predictive object data (real-time)
Latitude27.59582°
Longitude-89.20384°
Altitude1,135.024 km
Speed7.14 km/s
Apparent Right ascension17h 49m 32s
Apparent Declination-15° 12' 07"
Sunlit
Object is in daylight
Predictive observer data (real-time)
Local Sidereal Time14:47:43
Azimuth132.738° SE
Elevation20.545°
Doppler factor1
Orbital elements
Apogee1,221.225 km
Perigee468.811 km
Semi-major axis7,223.155 km
Eccentricity0.0520835
Inclination28.7867°
RAAN170.3313°
Arg. of periapsis207.67°
True anomaly152.38658°
Mean anomaly149.5217°
Mean motion3.53552 °/min
BSTAR0.00028425
Period101.82 mins
Definitive object data (Epoch: 2024-06-20T03:44:32.52Z)
Latitude-0°
Longitude-154.65623°
Altitude1,168.043 km
Speed7.105 km/s
True Right ascension11h 21m 19s
True Declination0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
TLE from 1 day ago
0 EXPLORER 11
1   107U 61013A   24172.15593195  .00002370  00000-0  28425-3 0  9999
2   107  28.7867 170.3313 0520835 207.6700 149.5217 14.15380845172661
Epoch: 2024-06-20T03:44Z
No data available
Other satellites on launch #13 in the year 1961 (1961-04-27 UTC)

EXPLORER 11 Visibility forecast

Observer location: 39.9160978°, -105.1181434, 0m alt.

EXPLORER 11 is not visible in the next 10 days
Span
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