Showing default

GORIZONT 21, 20923

Orbit data source: Space-Track

GORIZONT 21, 20923 is a payload satellite owned by MSvyaz (CIS) in GEO that was launched on Sat, 03 Nov 1990 UTC via a PROTON-K/DM-2 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.

Not visible in the next 10 days

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/20923?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/20923?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

20923, 1990-094A

Orbit

GEO

Last TLE update

7 hours ago

Origin

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

Manufacturer

NPO PM

Mission

Non-operational Civil Communications

Bus & Motor

GORIZONT, Unknown motor

Mass

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

Launch date (UTC)

1990-11-03 (35 years ago)

Launch vehicle

PROTON-K/DM-2

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 9.5 m

Radar Cross Section

23.870 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 7 hours ago

0 GORIZONT 21
1 20923U 90094A   25133.90621681 -.00000318  00000-0  00000-0 0  9998
2 20923  13.1183 339.6145 0006253 246.4067 105.9615  1.00323191126445

Epoch: 2025-05-13T21:44Z

Definitive object data (Epoch: 2025-05-13T21:44:57.132Z)

Latitude

-1.70132°

Longitude

134.10541°

Altitude

35,779.248 km

Speed

3.075 km/s

True Right ascension

22h 08m 58s

True Declination

-1° 41' 59"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

13.05542°

Longitude

-122.16949°

Altitude

35,794.16 km

Speed

3.074 km/s

Apparent Right ascension

04h 41m 49s

Apparent Declination

7° 05' 18"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:07:16

Azimuth

300.577° NW

Elevation

-21.844°

Doppler factor

Orbital elements

Apogee altitude

35,799.537 km

Perigee altitude

35,746.823 km

Semi-major axis

42,151.317 km

Eccentricity

0.0006253

Inclination

13.1183°

RAAN

339.6145°

Arg. of periapsis

246.4067°

True anomaly

106.03038°

Mean anomaly

105.9615°

Eccentric anomaly

105.99594°

Mean motion

0.2508 °/min

BSTAR

Unknown

Orbital period

1435.41 mins

Loading historical data...

20923 neighbors

Authenticating...

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

Other satellites on launch #94 in the year 1990 (1990-11-03 UTC)

SL-12 R/B(1), 20924 (Decayed)

SL-12 PLAT, 20925 (Decayed)

SL-12 R/B(2), 20926

SL-12 R/B(AUX MOTOR), 20927 (Decayed)

SL-12 R/B(AUX MOTOR), 20928 (Decayed)

GORIZONT 21 Visibility forecast

Observer location: undefined°, undefined°

GORIZONT 21 is not visible in the next 10 days

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

Check out GORIZONT 21, 20923 on other resources

View GORIZONT 21, 20923 on NASA - NSSDCA Website

View GORIZONT 21, 20923 on Heavens-Above

View GORIZONT 21, 20923 on Keep Track

View GORIZONT 21, 20923 on Celestrak

View GORIZONT 21, 20923 on Gunter's Space Page

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