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.
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21016 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
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)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 2 Pan, 4.8 m
Radar Cross Section
16.975 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 RADUGA 26
1 21016U 90112A 26270.00732218 .00000063 00000-0 00000-0 0 9992
2 21016 12.7478 337.1966 0002619 128.0199 318.2718 1.00293418131287Epoch: 2026-09-27T00:10Z
TLE epoch observation values (Epoch: 2026-09-27T00:10:32.636Z)
Latitude
12.71743°
Longitude
54.91077°
Altitude
35,771.264 km
Speed
3.076 km/s
True Right ascension
04h 13m 24s
True Declination
12° 42' 18"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
03:09:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,792.567 km
Perigee altitude
35,770.484 km
Semi-major axis
42,159.663 km
Eccentricity
0.00026
Inclination
12.7478°
RAAN
337.1966°
Arg. of periapsis
128.0199°
True anomaly
318.25182°
Mean anomaly
318.2718°
Eccentric anomaly
318.26181°
Mean motion
0.25072 °/min
Orbital period
1,435.84 mins
BSTAR
0
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Other satellites on launch #112 in the year 1990 (1990-12-20 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.RADUGA 26 Visibility
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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. |
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| RADUGA 26 is likely not visible in the next few days. |
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21016 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
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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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 descending order |
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