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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
Identifier
107, 1961-013A
Orbit
LEO
Last TLE update8 hours ago
Origin
Flag of USGSFC (US)
ManufacturerNASA MSFC
MissionCivil Astronomy
Bus & MotorS-15, Unknown motor
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
Shape & HBRCyl, 1.1 m
Radar Cross Section0.295 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 8 hours ago
0 EXPLORER 11
1 00107U 61013A   24291.90794319  .00004364  00000-0  53406-3 0  9997
2 00107  28.7890 206.2943 0514741 235.6286 119.4563 14.16978187190106
Epoch: 2024-10-17T21:47Z
Definitive object data (Epoch: 2024-10-17T21:47:26.291Z)
Latitude-0.00001°
Longitude-147.45055°
Altitude1,030.433 km
Speed7.238 km/s
True Right ascension13h 45m 10s
True Declination0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
Predictive object data (real-time)
Latitude-12.75846°
Longitude-173.63098°
Altitude843.725 km
Speed7.429 km/s
Apparent Right ascension12h 22m 52s
Apparent Declination-25° 29' 47"
Sunlit
Object is in daylight
Predictive observer data (real-time)
Local Sidereal Time00:55:09
Azimuth27.522° NE
Elevation-74.078°
Doppler factor1
Orbital elements
Apogee1,211.12 km
Perigee468.068 km
Semi-major axis7,217.731 km
Eccentricity0.0514741
Inclination28.789°
RAAN206.2943°
Arg. of periapsis235.6286°
True anomaly124.42837°
Mean anomaly119.4563°
Eccentric anomaly121.95854°
Mean motion3.5395 °/min
BSTAR0.00053406
Period101.71 mins
No data available
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

Span
Click to sort rows by Start time (UTC) header in descending order
Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
11 mins2024-10-18 21:39:43.795Z205.069° SW2024-10-18 21:45:43.795Z153.932° SSE20.71°2024-10-18 21:50:43.795Z113.517° SE
11 mins2024-10-18 23:27:43.795Z227.211° WSW2024-10-18 23:32:43.795Z178.529° S29.105°2024-10-18 23:38:43.795Z116.924° SE
11 mins2024-10-19 01:15:43.795Z241.9° WSW2024-10-19 01:20:43.795Z192.901° SSW28.413°2024-10-19 01:26:43.795Z130.439° SE
8 mins2024-10-19 03:04:43.795Z238.96° WSW2024-10-19 03:08:43.795Z201.64° SSW18.376°2024-10-19 03:12:43.795Z162.787° S