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ERS 9, 635

Orbit data source: Space-Track

ERS 9, 635 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Fri, 19 Jul 1963 UTC via an ATLAS AGENA B 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
635, 1963-030B
Orbit
LEO
Last TLE update
9 hours ago
Origin
Manufacturer
TRW
Mission
Defense Technology
Bus & Motor
TRS, Unknown motor
Mass
1 kg wet, 1 kg dry
Launch date (UTC)
1963-07-19 (62 years ago)
Launch vehicle
ATLAS AGENA B
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Trap Box, 0.1 m
Radar Cross Section
0.032 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 9 hours ago
0 ERS 9
1   635U 63030B   25199.57509429  .00000003  00000-0  25460-3 0  9996
2   635  88.4118 233.4458 0046271   6.0233 354.1166  8.57948366942219
Epoch: 2025-07-18T13:48Z
TLE epoch observation values (Epoch: 2025-07-18T13:48:08.146Z)
Latitude
0.00001°
Longitude
89.78727°
Altitude
3,656.887 km
Speed
6.318 km/s
True Right ascension
15h 33m 46s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
38.4005°
Longitude
-91.48906°
Altitude
3,739.485 km
Speed
6.27 km/s
Apparent Right ascension
02h 12m 37s
Apparent Declination
10° 38' 43"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
12:05:13
Azimuth
322.56° NNW
Elevation
-31.45°
Doppler factor
1
Orbital elements
Apogee altitude
3,745.556 km
Perigee altitude
3,652.301 km
Semi-major axis
10,077.066 km
Eccentricity
0.00463
Inclination
88.4118°
RAAN
233.4458°
Arg. of periapsis
6.0233°
True anomaly
354.06194°
Mean anomaly
354.1166°
Eccentric anomaly
354.0893°
Mean motion
2.14557 °/min
Orbital period
167.79 mins
BSTAR
0.0002546
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