Showing default

RADUGA 26, 21016

Orbit data source: Space-Track

RADUGA 26, 21016 is a payload satellite owned by UNKS (CIS) in GEO that was launched on Thu, 20 Dec 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/21016?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/21016?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

21016, 1990-112A

Orbit

GEO

Country

CIS

Related business

Russian Space Forces (RU)

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)

1990-12-20 (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, 4.8 m

Radar Cross Section

16.975 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 RADUGA 26
1 21016U 90112A   25260.69207905 -.00000278  00000-0  00000-0 0  9994
2 21016  13.0812 339.8043 0004060 138.5192 220.8111  1.00244716127523

Epoch: 2025-09-17T16:36Z

TLE epoch observation values (Epoch: 2025-09-17T16:36:35.629Z)

Latitude

-0.16561°

Longitude

93.10519°

Altitude

35,806.759 km

Speed

3.073 km/s

True Right ascension

22h 36m 28s

True Declination

0° 09' 56"

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

04:34:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,812.297 km

Perigee altitude

35,778.053 km

Semi-major axis

42,173.312 km

Eccentricity

0.00041

Inclination

13.0812°

RAAN

339.8043°

Arg. of periapsis

138.5192°

True anomaly

220.78071°

Mean anomaly

220.8111°

Eccentric anomaly

220.7959°

Mean motion

0.2506 °/min

Orbital period

1,436.53 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #112 in the year 1990 (1990-12-20 UTC)

SL-12 R/B(1), 21017 (Decayed)

SL-12 PLAT, 21018 (Decayed)

SL-12 R/B(2), 21019

SL-12 R/B(AUX MOTOR), 21024 (Decayed)

SL-12 R/B(AUX MOTOR), 21025 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

RADUGA 26 Visibility

Loading observer location...
Set Observer location

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.
RADUGA 26 is likely not visible in the next few days.

Loading historical data...

21016 neighbors

Authenticating...

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in ascending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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 RADUGA 26, 21016 on other resources

View RADUGA 26, 21016 on NASA - NSSDCA Website

View RADUGA 26, 21016 on Heavens-Above

View RADUGA 26, 21016 on Keep Track

View RADUGA 26, 21016 on Celestrak

View RADUGA 26, 21016 on Gunter's Space Page

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

RADUGA 26, 21016

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2025-09-17T16:36:35.629Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #112 in the year 1990 (1990-12-20 UTC)

RADUGA 26 Visibility

21016 neighbors

Co-orbital & Co-planar RSOs

Check out RADUGA 26, 21016 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago