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TELSTAR 303, 15826

Orbit data source: Space-Track

TELSTAR 303, 15826 is a payload satellite owned by AT&T Skynet (US) in GEO that was launched on Mon, 17 Jun 1985 UTC via an SPACE SHUTTLE 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 URL

https://www.satcat.com/sats-embedded/15826?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15826, 1985-048D

Orbit

GEO

Country

Related business

AT&T (US)

Manufacturer

Hughes

Mission

Spacecraft

Bus & Motor

HS-376, TE-M-700-17

Mass

1,223 kg wet, ~522 kg dry

Launch date (UTC)

1985-06-17 (41 years ago)

Launch vehicle

SPACE SHUTTLE

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: 2 days ago

TLE from 2 days ago

0 TELSTAR 303
1 15826U 85048D   26093.56323235 -.00000306  00000-0  00000+0 0  9995
2 15826  14.2372 346.8370 0003597 286.7900 268.0344  0.99885391 45750

Epoch: 2026-04-03T13:31Z

TLE epoch observation values (Epoch: 2026-04-03T13:31:03.275Z)

Latitude

-3.60996°

Longitude

146.55078°

Altitude

35,895.857 km

Speed

3.071 km/s

True Right ascension

12h 04m 50s

True Declination

-3° 36' 23"

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

07:44:19

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,911.444 km

Perigee altitude

35,881.031 km

Semi-major axis

42,274.374 km

Eccentricity

0.00036

Inclination

14.2372°

RAAN

346.837°

Arg. of periapsis

286.79°

True anomaly

267.99321°

Mean anomaly

268.0344°

Eccentric anomaly

268.0138°

Mean motion

0.24971 °/min

Orbital period

1,441.7 mins

BSTAR

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Other satellites on launch #48 in the year 1985 (1985-06-17 UTC)

MORELOS 1, 15824

ARABSAT 1B, 15825

TELSTAR 3D R/B(PAM-D), 15837

STS 51G, 15823 (Decayed)

ARABSAT 1B R/B(PAM-D), 15836

MORELOS 1 R/B(PAM-D), 15832

SPARTAN 1, 15831 (Decayed)

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TELSTAR 303 Visibility

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TELSTAR 303 is likely not visible in the next few days.

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15826 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 TELSTAR 303, 15826 on other resources

View TELSTAR 303, 15826 on NASA - NSSDCA Website

View TELSTAR 303, 15826 on Heavens-Above

View TELSTAR 303, 15826 on Keep Track

View TELSTAR 303, 15826 on Celestrak

View TELSTAR 303, 15826 on Gunter's Space Page

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

TELSTAR 303, 15826

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-04-03T13:31:03.275Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #48 in the year 1985 (1985-06-17 UTC)

TELSTAR 303 Visibility

15826 neighbors

Co-orbital & Co-planar RSOs

Check out TELSTAR 303, 15826 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago