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EXPLORER 22, 899

Orbit data source: Space-Track

EXPLORER 22, 899 is a payload satellite owned by GSFC (US) in LEO that was launched on Sat, 10 Oct 1964 UTC via an SCOUT X-4 launch vehicle from the Air Force Western Test Range (AFWTR). 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.

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Identifier
899, 1964-064A
Orbit
LEO
Country
Flag of USUS
Related business
Manufacturer
APL
Mission
Spacecraft
Bus & Motor
TRANSIT 5, Unknown motor
Mass
52 kg wet, 52 kg dry
Launch date (UTC)
1964-10-10 (62 years ago)
Launch vehicle
SCOUT X-4
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago
0 EXPLORER 22
1 00899U 64064A   26102.26754358  .00000106  00000-0  86259-4 0  9998
2 00899  79.6924 199.1355 0119035  16.0831 344.4046 13.83035348 95867
Epoch: 2026-04-12T06:25Z
TLE epoch observation values (Epoch: 2026-04-12T06:25:15.765Z)
Latitude
0.00002°
Longitude
-97.65513°
Altitude
871.955 km
Speed
7.459 km/s
True Right ascension
13h 16m 32s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow 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
19:49:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,037.666 km
Perigee altitude
863.194 km
Semi-major axis
7,328.567 km
Eccentricity
0.0119
Inclination
79.6924°
RAAN
199.1355°
Arg. of periapsis
16.0831°
True anomaly
344.03256°
Mean anomaly
344.4046°
Eccentric anomaly
344.21912°
Mean motion
3.45951 °/min
Orbital period
104.06 mins
BSTAR
0.000086259
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Other satellites on launch #64 in the year 1964 (1964-10-10 UTC)

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