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GORIZONT 11, 15484

Orbit data source: Space-Track

GORIZONT 11, 15484 is a payload satellite owned by MSvyaz (CIS) in GEO that was launched on Fri, 18 Jan 1985 UTC via a PROTON-K/DM launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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/15484?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/15484?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15484, 1985-007A

Orbit

GEO

Country

CIS

Related business

MinSvyazi SSR Soyuzniy Uzel Radioveshchaniya i Radiosvyazi No. 9 (RU)

Manufacturer

NPO PM

Mission

Non-operational spacecraft

Bus & Motor

GORIZONT, Unknown motor

Mass

2,120 kg wet, ~2,000 kg dry

Launch date (UTC)

1985-01-18 (41 years ago)

Launch vehicle

PROTON-K/DM

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 GORIZONT 11
1 15484U 85007A   26099.44840032 -.00000188  00000-0  00000-0 0  9991
2 15484   9.2824 315.9886 0002871 293.8922  86.8526  1.00248127151942

Epoch: 2026-04-09T10:45Z

TLE epoch observation values (Epoch: 2026-04-09T10:45:41.787Z)

Latitude

3.29465°

Longitude

-22.58795°

Altitude

35,791.778 km

Speed

3.075 km/s

True Right ascension

22h 26m 07s

True Declination

3° 17' 29"

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

09:41:02

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,806.366 km

Perigee altitude

35,782.15 km

Semi-major axis

42,172.395 km

Eccentricity

0.00029

Inclination

9.2824°

RAAN

315.9886°

Arg. of periapsis

293.8922°

True anomaly

86.88545°

Mean anomaly

86.8526°

Eccentric anomaly

86.86903°

Mean motion

0.25061 °/min

Orbital period

1,436.49 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #7 in the year 1985 (1985-01-18 UTC)

SL-12 R/B(2), 15487

SL-12 R/B(AUX MOTOR), 15488 (Decayed)

SL-12 PLAT, 15486 (Decayed)

SL-12 R/B(AUX MOTOR), 15489 (Decayed)

SL-12 R/B(1), 15485 (Decayed)

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GORIZONT 11 Visibility

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GORIZONT 11 is likely not visible in the next few days.

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15484 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 GORIZONT 11, 15484 on other resources

View GORIZONT 11, 15484 on NASA - NSSDCA Website

View GORIZONT 11, 15484 on Heavens-Above

View GORIZONT 11, 15484 on Keep Track

View GORIZONT 11, 15484 on Celestrak

View GORIZONT 11, 15484 on Gunter's Space Page

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

GORIZONT 11, 15484

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-04-09T10:45:41.787Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #7 in the year 1985 (1985-01-18 UTC)

GORIZONT 11 Visibility

15484 neighbors

Co-orbital & Co-planar RSOs

Check out GORIZONT 11, 15484 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago