Showing default

COSMOS 449, 5552

Orbit data source: Space-Track

COSMOS 449, 5552 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Wed, 13 Oct 1971 UTC via a KOSMOS 11K65M 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/5552?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/5552?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

5552, 1971-086F

Orbit

LEO

Country

CIS

Related business

Federal Space Agency of Russia (Roscosmos) (RU)

Manufacturer

OKB-10

Mission

Spacecraft

Bus & Motor

STRELA-1 11F625, Unknown motor

Mass

60 kg wet, 60 kg dry

Launch date (UTC)

1971-10-13 (55 years ago)

Launch vehicle

KOSMOS 11K65M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 COSMOS 449
1  5552U 71086F   26171.47483041 -.00000018  00000-0 -20611-4 0  9992
2  5552  74.0254 170.4688 0037661 331.1515 102.4321 12.38733810472896

Epoch: 2026-06-20T11:23Z

TLE epoch observation values (Epoch: 2026-06-20T11:23:45.347Z)

Latitude

67.62808°

Longitude

134.63827°

Altitude

1,529.822 km

Speed

7.104 km/s

True Right ascension

14h 17m 03s

True Declination

67° 31' 07"

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

23:07:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,539.531 km

Perigee altitude

1,480.117 km

Semi-major axis

7,887.961 km

Eccentricity

0.00377

Inclination

74.0254°

RAAN

170.4688°

Arg. of periapsis

331.1515°

True anomaly

102.85311°

Mean anomaly

102.4321°

Eccentric anomaly

102.64265°

Mean motion

3.0981 °/min

Orbital period

116.2 mins

BSTAR

-0.000020611

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #86 in the year 1971 (1971-10-13 UTC)

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

COSMOS 449 Visibility forecast

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.
15 mins	2026-06-22 12:05:35.152Z	324.667° NNW	2026-06-22 12:12:35.152Z	261.285° W	34.407°	2026-06-22 12:20:35.152Z	195.349° SSW
10 mins	2026-06-22 23:12:35.152Z	128.38° SE	2026-06-22 23:17:35.152Z	87.761° E	20.751°	2026-06-22 23:22:35.152Z	49.972° ENE
16 mins	2026-06-23 01:07:35.152Z	205.936° SW	2026-06-23 01:14:35.152Z	274.406° WNW	44.037°	2026-06-23 01:23:35.152Z	16.338° NNE
9 mins	2026-06-23 03:11:35.152Z	285.801° WNW	2026-06-23 03:15:35.152Z	316.617° NNW	17.008°	2026-06-23 03:20:35.152Z	352.007° N
13 mins	2026-06-23 09:22:35.152Z	7.298° NNE	2026-06-23 09:28:35.152Z	59.574° ENE	25.72°	2026-06-23 09:35:35.152Z	111.544° ESE
15 mins	2026-06-23 11:20:35.152Z	334.243° NNW	2026-06-23 11:27:35.152Z	254.898° W	43.121°	2026-06-23 11:35:35.152Z	176.209° S

Items per page:

1–6 of 6 items

of 1 page

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 descending 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 descending order

Check out COSMOS 449, 5552 on other resources

View COSMOS 449, 5552 on NASA - NSSDCA Website

View COSMOS 449, 5552 on Heavens-Above

View COSMOS 449, 5552 on Keep Track

View COSMOS 449, 5552 on Celestrak

View COSMOS 449, 5552 on Gunter's Space Page

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

COSMOS 449, 5552

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T11:23:45.347Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #86 in the year 1971 (1971-10-13 UTC)

COSMOS 449 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 449, 5552 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago