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COSMOS 2117, 21031

Orbit data source: Space-Track

COSMOS 2117, 21031 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Sat, 22 Dec 1990 UTC via a TSIKLON-3 launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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/21031?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/21031?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21031, 1990-114D

Orbit

LEO

Last TLE update

17 hours ago

Origin

Russian Space Forces (CIS)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-3, Unknown motor

Mass

225 kg wet, 225 kg dry

Launch date (UTC)

1990-12-22 (35 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.6 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 17 hours ago

0 COSMOS 2117
1 21031U 90114D   25191.68388869  .00000039  00000-0  15150-3 0  9993
2 21031  82.5738  56.4523 0008842 119.5457 309.8412 12.65018690595094

Epoch: 2025-07-10T16:24Z

TLE epoch observation values (Epoch: 2025-07-10T16:24:47.982Z)

Latitude

68.14654°

Longitude

-99.72602°

Altitude

1,409.662 km

Speed

7.164 km/s

True Right ascension

05h 01m 16s

True Declination

68° 02' 15"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

30.32555°

Longitude

-114.6944°

Altitude

1,405.658 km

Speed

7.16 km/s

Apparent Right ascension

06h 16m 26s

Apparent Declination

-1° 02' 37"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:35:14

Azimuth

62.262° ENE

Elevation

-30.51°

Doppler factor

Orbital elements

Apogee altitude

1,406.492 km

Perigee altitude

1,392.738 km

Semi-major axis

7,777.752 km

Eccentricity

0.00088

Inclination

82.5738°

RAAN

56.4523°

Arg. of periapsis

119.5457°

True anomaly

Unknown

Mean anomaly

309.8412°

Eccentric anomaly

Unknown

Mean motion

3.16419 °/min

Orbital period

113.77 mins

BSTAR

0.0001515

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Other satellites on launch #114 in the year 1990 (1990-12-22 UTC)

COSMOS 2117 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.
15 mins	2025-07-11 14:54:33.116Z	158.137° S	2025-07-11 15:02:33.116Z	81.362° E	35.933°	2025-07-11 15:09:33.116Z	20.096° NNE
12 mins	2025-07-11 16:51:33.116Z	232.017° WSW	2025-07-11 16:56:33.116Z	280.388° WNW	30.114°	2025-07-11 17:03:33.116Z	348.17° N
8 mins	2025-07-12 00:57:33.116Z	34.211° NE	2025-07-12 01:01:33.116Z	67.197° ENE	16.864°	2025-07-12 01:05:33.116Z	98.423° ESE
14 mins	2025-07-12 02:50:33.116Z	352.406° N	2025-07-12 02:56:33.116Z	350.259° N	44.692°	2025-07-12 03:04:33.116Z	175.074° S
7 mins	2025-07-12 04:47:33.116Z	306.328° NW	2025-07-12 04:50:33.116Z	282.421° WNW	15.468°	2025-07-12 04:54:33.116Z	251.744° W

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Check out COSMOS 2117, 21031 on other resources

View COSMOS 2117, 21031 on NASA - NSSDCA Website

View COSMOS 2117, 21031 on Heavens-Above

View COSMOS 2117, 21031 on Keep Track

View COSMOS 2117, 21031 on Celestrak

View COSMOS 2117, 21031 on Gunter's Space Page

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