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COSMOS 2115, 21029

Orbit data source: Space-Track

COSMOS 2115, 21029 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/21029?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/21029?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21029, 1990-114B

Orbit

LEO

Last TLE update

16 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 16 hours ago

0 COSMOS 2115
1 21029U 90114B   25191.72888120  .00000040  00000-0  16405-3 0  9996
2 21029  82.5669  70.4406 0002433 261.3131 163.0205 12.63521844593282

Epoch: 2025-07-10T17:29Z

TLE epoch observation values (Epoch: 2025-07-10T17:29:35.335Z)

Latitude

63.44051°

Longitude

-105.79506°

Altitude

1,421.132 km

Speed

7.155 km/s

True Right ascension

05h 41m 58s

True Declination

63° 18' 52"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-15.75501°

Longitude

60.8272°

Altitude

1,413.726 km

Speed

7.153 km/s

Apparent Right ascension

14h 17m 56s

Apparent Declination

-38° 48' 21"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

21:41:06

Azimuth

247.406° WSW

Elevation

-37.899°

Doppler factor

Orbital elements

Apogee altitude

1,407.655 km

Perigee altitude

1,403.867 km

Semi-major axis

7,783.898 km

Eccentricity

0.00024

Inclination

82.5669°

RAAN

70.4406°

Arg. of periapsis

261.3131°

True anomaly

Unknown

Mean anomaly

163.0205°

Eccentric anomaly

Unknown

Mean motion

3.16044 °/min

Orbital period

113.91 mins

BSTAR

0.00016405

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

COSMOS 2115 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 16:02:23.884Z	164.975° S	2025-07-11 16:10:23.884Z	83.717° E	39.589°	2025-07-11 16:17:23.884Z	17.475° NNE
13 mins	2025-07-11 17:59:23.884Z	236.11° WSW	2025-07-11 18:05:23.884Z	289.742° WNW	26.642°	2025-07-11 18:12:23.884Z	348.334° N
10 mins	2025-07-12 02:05:23.884Z	25.515° NE	2025-07-12 02:10:23.884Z	67.764° E	20.461°	2025-07-12 02:15:23.884Z	108.675° ESE
14 mins	2025-07-12 03:59:23.884Z	347.891° N	2025-07-12 04:06:23.884Z	238.582° WSW	43.887°	2025-07-12 04:13:23.884Z	182.976° SSW
4 mins	2025-07-12 05:57:23.884Z	299.26° NW	2025-07-12 05:59:23.884Z	284.371° WNW	12.263°	2025-07-12 06:01:23.884Z	269.53° W

Authenticating...

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Check out COSMOS 2115, 21029 on other resources

View COSMOS 2115, 21029 on NASA - NSSDCA Website

View COSMOS 2115, 21029 on Heavens-Above

View COSMOS 2115, 21029 on Keep Track

View COSMOS 2115, 21029 on Celestrak

View COSMOS 2115, 21029 on Gunter's Space Page

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