Showing default

COSMOS 2087, 20707

Orbit data source: Space-Track

COSMOS 2087, 20707 is a payload satellite owned by PVO (CIS) in HEO that was launched on Wed, 25 Jul 1990 UTC via an MOLNIYA 8K78M-PVB 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/20707?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/20707?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

20707, 1990-064A

Orbit

HEO

Last TLE update

3 days ago

Origin

Russian Aerospace Forces (CIS)

Manufacturer

NPOL/KOMET

Mission

Defense Early Warn

Bus & Motor

OKO, Unknown motor

Mass

~1,250 kg wet, ~1,150 kg dry

Launch date (UTC)

1990-07-25 (35 years ago)

Launch vehicle

MOLNIYA 8K78M-PVB

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 2.5 m

Radar Cross Section

6.333 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 3 days ago

0 COSMOS 2087
1 20707U 90064A   25208.92285013 -.00000554  00000-0  00000-0 0  9997
2 20707  67.7720 207.2500 6050019  32.8219 353.2473  2.00830761256321

Epoch: 2025-07-27T22:08Z

TLE epoch observation values (Epoch: 2025-07-27T22:08:54.251Z)

Latitude

-0.00018°

Longitude

-70.83685°

Altitude

4,778.135 km

Speed

7.513 km/s

True Right ascension

13h 48m 54s

True Declination

0° 00' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-34.54445°

Longitude

-87.38589°

Altitude

7,615.126 km

Speed

6.479 km/s

Apparent Right ascension

12h 13m 36s

Apparent Declination

-36° 38' 23"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

23:04:14

Azimuth

278.032° WNW

Elevation

-76.022°

Doppler factor

Orbital elements

Apogee altitude

36,211.978 km

Perigee altitude

4,103.48 km

Semi-major axis

26,535.866 km

Eccentricity

0.605

Inclination

67.772°

RAAN

207.25°

Arg. of periapsis

32.8219°

True anomaly

326.97465°

Mean anomaly

353.2473°

Eccentric anomaly

343.26723°

Mean motion

0.5021 °/min

Orbital period

716.98 mins

BSTAR

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

Other satellites on launch #64 in the year 1990 (1990-07-25 UTC)

SL-6 R/B(1), 20708 (Decayed)

SL-6 PLAT, 20709 (Decayed)

SL-6 R/B(2), 20710

SL-6 DEB, 20714 (Decayed)

SL-6 DEB, 20715 (Decayed)

SL-6 DEB, 20716 (Decayed)

COSMOS 2087 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.
287 mins	2025-07-31 10:24:40.907Z	329.997° NNW	2025-07-31 11:08:40.907Z	253.147° W	44.913°	2025-07-31 15:11:40.907Z	214.045° SW
17 mins	2025-07-31 21:52:40.907Z	111.153° ESE	2025-07-31 22:00:40.907Z	81.27° E	15.067°	2025-07-31 22:09:40.907Z	49.679° ENE

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 ascending order

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 COSMOS 2087, 20707 on other resources

View COSMOS 2087, 20707 on NASA - NSSDCA Website

View COSMOS 2087, 20707 on Heavens-Above

View COSMOS 2087, 20707 on Keep Track

View COSMOS 2087, 20707 on Celestrak

View COSMOS 2087, 20707 on Gunter's Space Page

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