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COSMOS 2504, 40555

Orbit data source: Space-Track

COSMOS 2504, 40555 is a payload satellite owned by TsNIIKhM (CIS) in LEO that was launched on Tue, 31 Mar 2015 UTC via an ROKOT 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/40555?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

40555, 2015-020D

Orbit

LEO

Last TLE update

7 hours ago

Origin

Central Sci. Res. Inst. for Chemistry and Mechanics (CIS)

Manufacturer

TsNIIKhM

Mission

Operational Defense Technology

Bus & Motor

NIVELIR, Unknown motor

Mass

~100 kg wet, ~100 kg dry

Launch date (UTC)

2015-03-31 (10 years ago)

Launch vehicle

ROKOT

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Cyl + 1 Ant, 1 m

Radar Cross Section

0.352 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 7 hours ago

0 COSMOS 2504
1 40555U 15020D   25182.13622208  .00000217  00000-0  71961-4 0  9997
2 40555  82.5173 142.5655 0609721 148.2120 215.7406 13.61045678502438

Epoch: 2025-07-01T03:16Z

TLE epoch observation values (Epoch: 2025-07-01T03:16:09.587Z)

Latitude

-0.00007°

Longitude

174.08954°

Altitude

1,410.318 km

Speed

6.972 km/s

True Right ascension

09h 30m 15s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-34.59387°

Longitude

168.69625°

Altitude

1,496.472 km

Speed

6.894 km/s

Apparent Right ascension

09h 24m 58s

Apparent Declination

-36° 54' 06"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:46:33

Azimuth

56.213° ENE

Elevation

-84.809°

Doppler factor

Orbital elements

Apogee altitude

1,480.696 km

Perigee altitude

577.431 km

Semi-major axis

7,407.2 km

Eccentricity

0.06097

Inclination

82.5173°

RAAN

142.5655°

Arg. of periapsis

148.212°

True anomaly

Unknown

Mean anomaly

215.7406°

Eccentric anomaly

Unknown

Mean motion

3.40457 °/min

Orbital period

105.74 mins

BSTAR

0.000071961

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Other satellites on launch #20 in the year 2015 (2015-03-31 UTC)

GONETS M 11 (M21), 40552

GONETS M 12 (M22), 40553

GONETS M 13 (M23), 40554

COSMOS 2504 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.
11 mins	2025-07-01 21:01:09.351Z	144.416° SSE	2025-07-01 21:07:09.351Z	89.221° E	26.827°	2025-07-01 21:12:09.351Z	33.713° NE
11 mins	2025-07-01 22:48:09.351Z	214.981° SW	2025-07-01 22:53:09.351Z	269.556° W	35.554°	2025-07-01 22:59:09.351Z	351.951° N
5 mins	2025-07-02 09:54:09.351Z	313.702° NW	2025-07-02 09:56:09.351Z	263.745° W	27.599°	2025-07-02 09:59:09.351Z	209.231° SW

Authenticating...

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Check out COSMOS 2504, 40555 on other resources

View COSMOS 2504, 40555 on NASA - NSSDCA Website

View COSMOS 2504, 40555 on Heavens-Above

View COSMOS 2504, 40555 on Keep Track

View COSMOS 2504, 40555 on Celestrak

View COSMOS 2504, 40555 on Gunter's Space Page

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