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RADUGA 25, 20499

Orbit data source: Space-Track

RADUGA 25, 20499 is a payload satellite owned by UNKS (CIS) in GEO that was launched on Thu, 15 Feb 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.

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https://www.satcat.com/sats-embedded/20499?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

20499, 1990-016A

Orbit

GEO

Last TLE update

18 hours ago

Origin

Russian Space Forces (CIS)

Manufacturer

NPO PM

Mission

Non-operational Defense Communications

Bus & Motor

RADUGA, Unknown motor

Mass

1,965 kg wet, ~1,800 kg dry

Launch date (UTC)

1990-02-15 (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

16.975 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 18 hours ago

0 RADUGA 25
1 20499U 90016A   25133.37272045 -.00000252  00000-0  00000-0 0  9994
2 20499  12.7414 337.4710 0004401 192.2585 159.4656  1.00302188128898

Epoch: 2025-05-13T08:56Z

Definitive object data (Epoch: 2025-05-13T08:56:43.046Z)

Latitude

-1.80401°

Longitude

-36.14319°

Altitude

35,795.161 km

Speed

3.074 km/s

True Right ascension

21h 57m 38s

True Declination

-1° 48' 08"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-12.71647°

Longitude

-122.82313°

Altitude

35,774.87 km

Speed

3.075 km/s

Apparent Right ascension

16h 37m 23s

Apparent Declination

-18° 36' 48"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

11:35:48

Azimuth

113.467° SE

Elevation

-1.234°

Doppler factor

Orbital elements

Apogee altitude

35,797.622 km

Perigee altitude

35,760.515 km

Semi-major axis

42,157.205 km

Eccentricity

0.0004401

Inclination

12.7414°

RAAN

337.471°

Arg. of periapsis

192.2585°

True anomaly

159.48328°

Mean anomaly

159.4656°

Eccentric anomaly

159.47444°

Mean motion

0.25075 °/min

BSTAR

Unknown

Orbital period

1435.71 mins

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20499 neighbors

Authenticating...

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Other satellites on launch #16 in the year 1990 (1990-02-15 UTC)

SL-12 R/B(1), 20500 (Decayed)

SL-12 PLAT, 20501 (Decayed)

SL-12 R/B(2), 20502

SL-12 R/B(AUX MOTOR), 20506 (Decayed)

SL-12 R/B(AUX MOTOR), 20507 (Decayed)

RADUGA 25 Visibility forecast

Observer location: undefined°, undefined°

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.
567 mins	2025-05-14 10:30:48.473Z	101.368° ESE	2025-05-14 14:55:48.473Z	93.752° ESE	15.429°	2025-05-14 19:57:48.473Z	99.937° ESE

Authenticating...

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Check out RADUGA 25, 20499 on other resources

View RADUGA 25, 20499 on NASA - NSSDCA Website

View RADUGA 25, 20499 on Heavens-Above

View RADUGA 25, 20499 on Keep Track

View RADUGA 25, 20499 on Celestrak

View RADUGA 25, 20499 on Gunter's Space Page

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