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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

13 hours 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 13 hours ago

0 ERS 9
1 00635U 63030B   25181.38634456  .00000005  00000-0  12121-2 0  9996
2 00635  88.4132 234.4525 0046656  23.9381 336.3626  8.57948390940274

Epoch: 2025-06-30T09:16Z

TLE epoch observation values (Epoch: 2025-06-30T09:16:20.169Z)

Latitude

-0.00004°

Longitude

176.67157°

Altitude

3,660.232 km

Speed

6.316 km/s

True Right ascension

15h 37m 48s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-88.40064°

Longitude

95.42243°

Altitude

3,748.245 km

Speed

6.27 km/s

Apparent Right ascension

22h 10m 24s

Apparent Declination

-71° 57' 39"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

10:10:32

Azimuth

179.98° S

Elevation

-57.955°

Doppler factor

Orbital elements

Apogee altitude

3,745.944 km

Perigee altitude

3,651.913 km

Semi-major axis

10,077.065 km

Eccentricity

0.00467

Inclination

88.4132°

RAAN

234.4525°

Arg. of periapsis

23.9381°

True anomaly

Unknown

Mean anomaly

336.3626°

Eccentric anomaly

Unknown

Mean motion

2.14557 °/min

Orbital period

167.79 mins

BSTAR

0.0012121

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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	2025-07-01 02:08:02.943Z	132.567° SE	2025-07-01 02:24:02.943Z	69.259° E	34.165°	2025-07-01 02:40:02.943Z	8.294° NNE
35 mins	2025-07-01 04:53:02.943Z	201.353° SSW	2025-07-01 05:10:02.943Z	275.441° WNW	40.248°	2025-07-01 05:28:02.943Z	355.721° N
34 mins	2025-07-01 14:03:02.943Z	8.092° NNE	2025-07-01 14:20:02.943Z	80.993° E	35.957°	2025-07-01 14:37:02.943Z	147.669° SSE
34 mins	2025-07-01 16:51:02.943Z	352.515° N	2025-07-01 17:07:02.943Z	285.643° WNW	38.924°	2025-07-01 17:25:02.943Z	214.502° SW

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.