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LES 9, 8747

Orbit data source: Space-Track

LES 9, 8747 is a payload satellite owned by SAMSO (US) in GEO that was launched on Mon, 15 Mar 1976 UTC via a TITAN IIIC launch vehicle from the Air Force Eastern Test Range (AFETR). 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/8747?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/8747?theme=dark&initialShowStats=false

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ISO8601 Format

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ISO8601 Format

Identifier

8747, 1976-023B

Orbit

GEO

Country

Related business

USAF Space and Missile Systems Organization (US)

Manufacturer

MIT-LL

Mission

Non-operational spacecraft

Bus & Motor

LES, Unknown motor

Mass

420 kg wet, 366 kg dry

Launch date (UTC)

1976-03-15 (50 years ago)

Launch vehicle

TITAN IIIC

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 LES 9
1 08747U 76023B   25349.18038506 -.00000111  00000-0  00000-0 0  9992
2 08747  22.0182  39.3949 0025071 178.3775 186.7734  1.00277576127835

Epoch: 2025-12-15T04:19Z

TLE epoch observation values (Epoch: 2025-12-15T04:19:45.269Z)

Latitude

1.91854°

Longitude

-104.88172°

Altitude

35,889.467 km

Speed

3.067 km/s

True Right ascension

02h 56m 33s

True Declination

1° 54' 60"

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

12:26:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,891.531 km

Perigee altitude

35,680.113 km

Semi-major axis

42,163.959 km

Eccentricity

0.00251

Inclination

22.0182°

RAAN

39.3949°

Arg. of periapsis

178.3775°

True anomaly

186.73962°

Mean anomaly

186.7734°

Eccentric anomaly

186.7565°

Mean motion

0.25069 °/min

Orbital period

1,436.06 mins

BSTAR

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Other satellites on launch #23 in the year 1976 (1976-03-15 UTC)

SOLRAD 11A/B PKM, 8752

TITAN 3C TRANSTAGE R/B, 8751

LES 8 9/SOL 11A B DEB *, 13753

LES 8, 8746

SOLRAD 11A, 8748

SOLRAD 11A/B AKM, 8753

TITAN 3C TRANSTAGE DEB, 8832

TITAN 3C R/B(1), 8750 (Decayed)

SOLRAD 11B, 8749

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LES 9 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.
1440 mins	2025-12-16 13:45:00.169Z	174.938° S	2025-12-17 09:54:00.169Z	178.641° S	43.038°	2025-12-17 13:45:00.169Z	175.018° S

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8747 neighbors

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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 LES 9, 8747 on other resources

View LES 9, 8747 on NASA - NSSDCA Website

View LES 9, 8747 on Heavens-Above

View LES 9, 8747 on Keep Track

View LES 9, 8747 on Celestrak

View LES 9, 8747 on Gunter's Space Page

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

LES 9, 8747

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2025-12-15T04:19:45.269Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #23 in the year 1976 (1976-03-15 UTC)

LES 9 Visibility forecast

8747 neighbors

Co-orbital & Co-planar RSOs

Check out LES 9, 8747 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago