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ERS 9, 635

Orbit data source: Space-Track

ERS 9, 635 is a payload satellite 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
1 day 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, 0.2 m
Radar Cross Section
0.032 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 ERS 9
1 00635U 63030B   25142.44370913 -.00000015  00000-0 -90144-2 0  9999
2 00635  88.4161 236.6068 0048716  64.6021 295.9861  8.57947036936939
Epoch: 2025-05-22T10:38Z
TLE epoch observation values (Epoch: 2025-05-22T10:38:56.468Z)
Latitude
-0.00007°
Longitude
-163.44167°
Altitude
3,681.97 km
Speed
6.302 km/s
True Right ascension
15h 46m 25s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
-3.48778°
Longitude
-163.6154°
Altitude
3,684.108 km
Speed
6.301 km/s
Apparent Right ascension
16h 15m 54s
Apparent Declination
-17° 41' 24"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
05:18:22
Azimuth
35.794° NE
Elevation
-63.991°
Doppler factor
1
Orbital elements
Apogee altitude
3,748.031 km
Perigee altitude
3,649.848 km
Semi-major axis
10,077.076 km
Eccentricity
0.00487
Inclination
88.4161°
RAAN
236.6068°
Arg. of periapsis
64.6021°
True anomaly
Unknown
Mean anomaly
295.9861°
Eccentric anomaly
Unknown
Mean motion
2.14556 °/min
Orbital period
167.79 mins
BSTAR
-0.0090144
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ERS 9 Visibility forecast

Observer location: undefined°, undefined°

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.
25 mins2025-05-23 21:02:05.259Z344.695° N2025-05-23 21:14:05.259Z302.068° NW22.949°2025-05-23 21:27:05.259Z255.786° W
31 mins2025-05-24 04:43:05.259Z128.842° SE2025-05-24 04:58:05.259Z67.349° ENE33.423°2025-05-24 05:14:05.259Z7.99° NNE
35 mins2025-05-24 07:27:05.259Z200.201° SSW2025-05-24 07:44:05.259Z278.584° WNW40.794°2025-05-24 08:02:05.259Z356.489° N
4 mins2025-05-24 10:38:05.259Z309.949° NW2025-05-24 10:40:05.259Z316.584° NNW10.488°2025-05-24 10:42:05.259Z323.198° NNW
34 mins2025-05-24 16:36:05.259Z7.301° NNE2025-05-24 16:53:05.259Z77.481° E35.149°2025-05-24 17:10:05.259Z145.498° SSE
34 mins2025-05-24 19:24:05.259Z353.523° N2025-05-24 19:41:05.259Z281.081° WNW39.469°2025-05-24 19:58:05.259Z213.425° SW
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