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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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<iframe src="https://www.satcat.com/sats-embedded/635?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/635?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

635, 1963-030B

Orbit

LEO

Last TLE update

1 day ago

Origin

United States Space Force (US)

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   25138.47948285  .00000033  00000-0  15155-1 0  9996
2 00635  88.4159 236.8260 0047516  67.0252 293.5602  8.57946960936596

Epoch: 2025-05-18T11:30Z

TLE epoch observation values (Epoch: 2025-05-18T11:30:27.318Z)

Latitude

0.00001°

Longitude

-172.19368°

Altitude

3,684.34 km

Speed

6.3 km/s

True Right ascension

15h 47m 18s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-73.40041°

Longitude

-177.55271°

Altitude

3,764.349 km

Speed

6.259 km/s

Apparent Right ascension

11h 06m 13s

Apparent Declination

-68° 42' 48"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:56:23

Azimuth

200.61° SSW

Elevation

-56.39°

Doppler factor

Orbital elements

Apogee altitude

3,746.822 km

Perigee altitude

3,651.057 km

Semi-major axis

10,077.077 km

Eccentricity

0.00475

Inclination

88.4159°

RAAN

236.826°

Arg. of periapsis

67.0252°

True anomaly

Unknown

Mean anomaly

293.5602°

Eccentric anomaly

Unknown

Mean motion

2.14556 °/min

Orbital period

167.79 mins

BSTAR

0.015155

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Other satellites on launch #30 in the year 1963 (1963-07-19 UTC)

MIDAS 7/ERS 10, 622

ATLAS AGENA B DEB, 630

DASH 2, 624 (Decayed)

ATLAS AGENA B DEB, 631

ATLAS AGENA B DEB, 3121

ATLAS AGENA B DEB, 3132

DASH 2 DEB *, 20153

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.
32 mins	2025-05-19 16:16:11.792Z	9.205° NNE	2025-05-19 16:32:11.792Z	68.822° E	27.449°	2025-05-19 16:48:11.792Z	127.748° SE
36 mins	2025-05-19 19:04:11.792Z	356.929° N	2025-05-19 19:22:11.792Z	271.022° WNW	43.876°	2025-05-19 19:40:11.792Z	197.176° SSW
17 mins	2025-05-19 21:56:11.792Z	335.344° NNW	2025-05-19 22:04:11.792Z	307.38° NW	16.575°	2025-05-19 22:13:11.792Z	276.682° WNW
33 mins	2025-05-20 05:32:11.792Z	144.711° SSE	2025-05-20 05:48:11.792Z	76.682° E	39.209°	2025-05-20 06:05:11.792Z	6.261° NNE
33 mins	2025-05-20 08:20:11.792Z	216.017° SW	2025-05-20 08:36:11.792Z	284.167° WNW	35.33°	2025-05-20 08:53:11.792Z	353.41° N

Authenticating...

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Check out ERS 9, 635 on other resources

View ERS 9, 635 on NASA - NSSDCA Website

View ERS 9, 635 on Heavens-Above

View ERS 9, 635 on Keep Track

View ERS 9, 635 on Celestrak

View ERS 9, 635 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.