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COSMOS 2546, 45608

Orbit data source: Space-Track

COSMOS 2546, 45608 is a payload satellite owned by VVKO VKS (CIS) that was launched on Fri, 22 May 2020 UTC via a SOYUZ-2-1B 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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https://www.satcat.com/sats-embedded/45608?theme=dark&initialShowStats=false

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Identifier

45608, 2020-031A

Orbit

Molniya

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

RKKE/KOMET

Mission

Operational Defense Early Warn

Bus & Motor

14F142 EKS, Unknown motor

Mass

2,550 kg wet, ~2,000 kg dry

Launch date (UTC)

2020-05-22 (6 years ago)

Launch vehicle

SOYUZ-2-1B

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, Unknown HBR

Radar Cross Section

14.304 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 1 week ago

TLE from 1 week ago

0 COSMOS 2546
1 45608U 20031A   26027.95912760 -.00000335  00000-0  00000-0 0  9997
2 45608  63.1450  84.3350 7015969 265.6612  18.4652  2.00547013 41656

Epoch: 2026-01-27T23:01Z

TLE epoch observation values (Epoch: 2026-01-27T23:01:08.624Z)

Latitude

-0.00012°

Longitude

-28.11464°

Altitude

7,884.401 km

Speed

6.395 km/s

True Right ascension

05h 37m 37s

True Declination

0° 00' 00"

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

02:20:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

38,817.877 km

Perigee altitude

1,547.73 km

Semi-major axis

26,560.94 km

Eccentricity

0.7016

Inclination

63.145°

RAAN

84.335°

Arg. of periapsis

265.6612°

True anomaly

94.35616°

Mean anomaly

18.4652°

Eccentric anomaly

48.63464°

Mean motion

0.50139 °/min

Orbital period

718 mins

BSTAR

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Other satellites on launch #31 in the year 2020 (2020-05-22 UTC)

FREGAT R/B, 45609

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COSMOS 2546 Visibility forecast

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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.
491 mins	2026-02-05 00:20:38.869Z	55.194° ENE	2026-02-05 03:40:38.869Z	36.301° NE	29.519°	2026-02-05 08:31:38.869Z	64.177° ENE
460 mins	2026-02-05 12:14:38.869Z	312.074° NW	2026-02-05 16:48:38.869Z	329.446° NNW	20.433°	2026-02-05 19:54:38.869Z	311.884° NW
65 mins	2026-02-05 23:15:38.869Z	69.792° E	2026-02-06 00:20:38.869Z	54.563° ENE	22.375°	2026-02-06 00:20:38.869Z	54.563° ENE

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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

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out COSMOS 2546, 45608 on other resources

View COSMOS 2546, 45608 on NASA - NSSDCA Website

View COSMOS 2546, 45608 on Heavens-Above

View COSMOS 2546, 45608 on Keep Track

View COSMOS 2546, 45608 on Celestrak

View COSMOS 2546, 45608 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 2546, 45608

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-01-27T23:01:08.624Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #31 in the year 2020 (2020-05-22 UTC)

COSMOS 2546 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 2546, 45608 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 week ago