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SSC, 13874

Orbit data source: Space-Track

SSC, 13874 is an American payload satellite in LEO that was launched on Wed, 09 Feb 1983 UTC via an ATLAS H 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/13874?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/13874?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

13874, 1983-008H

Orbit

LEO

Country

Related business

National Reconnaissance Office (US)

Manufacturer

Martin Marietta

Mission

Spacecraft

Bus & Motor

NOSS SSU, Unknown motor

Mass

200 kg wet, 200 kg dry

Launch date (UTC)

1983-02-09 (43 years ago)

Launch vehicle

ATLAS H

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SSC
1 13874U 83008H   26131.22497351  .00000927  00000-0  13758-3 0  9993
2 13874  63.3046 104.4969 0710635 136.0525 229.9349 13.80785510346542

Epoch: 2026-05-11T05:23Z

TLE epoch observation values (Epoch: 2026-05-11T05:23:57.711Z)

Latitude

0.00003°

Longitude

154.48969°

Altitude

1,318.921 km

Speed

7.022 km/s

True Right ascension

06h 57m 59s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

22:06:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,481.381 km

Perigee altitude

438.446 km

Semi-major axis

7,338.051 km

Eccentricity

0.07106

Inclination

63.3046°

RAAN

104.4969°

Arg. of periapsis

136.0525°

True anomaly

224.05075°

Mean anomaly

229.9349°

Eccentric anomaly

226.95908°

Mean motion

3.45281 °/min

Orbital period

104.26 mins

BSTAR

0.00013758

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Other satellites on launch #8 in the year 1983 (1983-02-09 UTC)

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SSC Visibility forecast

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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.
10 mins	2026-05-11 22:53:18.233Z	169.277° S	2026-05-11 22:58:18.233Z	121.662° SE	25.566°	2026-05-11 23:03:18.233Z	60.254° ENE
9 mins	2026-05-12 00:41:18.233Z	236.651° WSW	2026-05-12 00:46:18.233Z	311.739° NW	37.785°	2026-05-12 00:50:18.233Z	19.311° NNE
4 mins	2026-05-12 08:02:18.233Z	358.626° N	2026-05-12 08:04:18.233Z	51.272° ENE	25.39°	2026-05-12 08:06:18.233Z	101.549° ESE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out SSC, 13874 on other resources

View SSC, 13874 on NASA - NSSDCA Website

View SSC, 13874 on Heavens-Above

View SSC, 13874 on Keep Track

View SSC, 13874 on Celestrak

View SSC, 13874 on Gunter's Space Page

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

SSC, 13874

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-05-11T05:23:57.711Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #8 in the year 1983 (1983-02-09 UTC)

SSC Visibility forecast

Co-orbital & Co-planar RSOs

Check out SSC, 13874 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago