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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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<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

3 days 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 3 days ago

0 ERS 9
1 00635U 63030B   25187.33266723  .00000000  00000-0 -10737-2 0  9992
2 00635  88.4124 234.1234 0046588  18.3200 341.9317  8.57948244940784

Epoch: 2025-07-06T07:59Z

TLE epoch observation values (Epoch: 2025-07-06T07:59:02.448Z)

Latitude

-0.00002°

Longitude

-170.19467°

Altitude

3,658.658 km

Speed

6.317 km/s

True Right ascension

15h 36m 29s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

63.57233°

Longitude

-167.1866°

Altitude

3,680.673 km

Speed

6.31 km/s

Apparent Right ascension

13h 55m 00s

Apparent Declination

30° 27' 27"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

00:11:50

Azimuth

337.074° NNW

Elevation

-15.665°

Doppler factor

Orbital elements

Apogee altitude

3,745.877 km

Perigee altitude

3,651.983 km

Semi-major axis

10,077.067 km

Eccentricity

0.00466

Inclination

88.4124°

RAAN

234.1234°

Arg. of periapsis

18.32°

True anomaly

Unknown

Mean anomaly

341.9317°

Eccentric anomaly

Unknown

Mean motion

2.14557 °/min

Orbital period

167.79 mins

BSTAR

-0.0010737

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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.
29 mins	2025-07-09 12:19:35.284Z	11.921° NNE	2025-07-09 12:34:35.284Z	65.503° ENE	22.601°	2025-07-09 12:48:35.284Z	114.373° SE
36 mins	2025-07-09 15:07:35.284Z	359.011° N	2025-07-09 15:25:35.284Z	230.384° WSW	44.932°	2025-07-09 15:43:35.284Z	187.39° SSW
23 mins	2025-07-09 17:57:35.284Z	341.28° N	2025-07-09 18:08:35.284Z	302.009° NW	21.324°	2025-07-09 18:20:35.284Z	260.586° W
32 mins	2025-07-10 01:36:35.284Z	133.387° SE	2025-07-10 01:51:35.284Z	72.25° E	35.114°	2025-07-10 02:08:35.284Z	7.221° NNE
35 mins	2025-07-10 04:21:35.284Z	204.137° SW	2025-07-10 04:38:35.284Z	280.834° WNW	39.486°	2025-07-10 04:56:35.284Z	356.068° 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

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