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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, 2.4 m

Radar Cross Section

14.304 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 3 weeks ago

TLE from 3 weeks ago

0 COSMOS 2546
1 45608U 20031A   26243.29559994 -.00000360  00000-0  00000-0 0  9998
2 45608  63.1638  56.8572 7115328 266.6524  17.3178  2.00576418 45978

Epoch: 2026-08-31T07:05Z

TLE epoch observation values (Epoch: 2026-08-31T07:05:39.834Z)

Latitude

-0°

Longitude

-29.09223°

Altitude

7,292.011 km

Speed

6.581 km/s

True Right ascension

03h 47m 12s

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

19:12:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

39,077.272 km

Perigee altitude

1,283.063 km

Semi-major axis

26,558.304 km

Eccentricity

0.71153

Inclination

63.1638°

RAAN

56.8572°

Arg. of periapsis

266.6524°

True anomaly

93.64175°

Mean anomaly

17.3178°

Eccentric anomaly

47.25877°

Mean motion

0.50147 °/min

Orbital period

717.89 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.
53 mins	2026-09-19 02:20:42.275Z	321.475° NNW	2026-09-19 02:20:42.275Z	321.475° NNW	16.819°	2026-09-19 03:13:42.275Z	313.754° NW
564 mins	2026-09-19 06:33:42.275Z	70.359° E	2026-09-19 11:02:42.275Z	35.937° NE	34.421°	2026-09-19 15:57:42.275Z	67.085° ENE
412 mins	2026-09-19 19:28:42.275Z	312.525° NW	2026-09-19 23:53:42.275Z	329.653° NNW	21.864°	2026-09-20 02:20:42.275Z	321.055° NNW

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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: 3 weeks ago

TLE from 3 weeks ago

TLE epoch observation values (Epoch: 2026-08-31T07:05:39.834Z)

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: 3 weeks ago