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COSMOS 2503, 40420

Orbit data source: Space-Track

COSMOS 2503, 40420 is a payload satellite owned by VVKO VKS (CIS) in SSO that was launched on Fri, 27 Feb 2015 UTC via a SOYUZ-2-1A 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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Iframe URL

https://www.satcat.com/sats-embedded/40420?theme=dark&initialShowStats=false

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Identifier

40420, 2015-009A

Orbit

SSO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Arsenal

Mission

Operational Defense Imaging

Bus & Motor

BARS, AOCS

Mass

3,700 kg wet, ~3,500 kg dry

Launch date (UTC)

2015-02-27 (11 years ago)

Launch vehicle

SOYUZ-2-1A

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 5.0 m

Radar Cross Section

20.881 m², Large (>1 m²)

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

TLE from 3 days ago

0 COSMOS 2503
1 40420U 15009A   26170.72154748  .00001011  00000-0  72586-4 0  9994
2 40420  97.8304 227.4793 0014909 240.9640 119.0093 15.06598744619317

Epoch: 2026-06-19T17:19Z

TLE epoch observation values (Epoch: 2026-06-19T17:19:01.702Z)

Latitude

-0.00005°

Longitude

59.77576°

Altitude

554.682 km

Speed

7.582 km/s

True Right ascension

15h 09m 55s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

21:38:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

553.924 km

Perigee altitude

533.285 km

Semi-major axis

6,921.742 km

Eccentricity

0.00149

Inclination

97.8304°

RAAN

227.4793°

Arg. of periapsis

240.964°

True anomaly

119.15858°

Mean anomaly

119.0093°

Eccentric anomaly

119.08395°

Mean motion

3.76895 °/min

Orbital period

95.52 mins

BSTAR

0.000072586

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Other satellites on launch #9 in the year 2015 (2015-02-27 UTC)

SL-4 R/B, 40421 (Decayed)

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COSMOS 2503 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.
6 mins	2026-06-22 16:01:49.715Z	41.783° NE	2026-06-22 16:04:49.715Z	101.635° ESE	24.641°	2026-06-22 16:07:49.715Z	154.81° SSE
4 mins	2026-06-22 17:37:49.715Z	318.054° NNW	2026-06-22 17:38:49.715Z	298.074° NW	18.993°	2026-06-22 17:41:49.715Z	245.632° WSW
5 mins	2026-06-23 04:20:49.715Z	210.151° SW	2026-06-23 04:22:49.715Z	266.663° W	31.073°	2026-06-23 04:25:49.715Z	326.754° 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 2503, 40420 on other resources

View COSMOS 2503, 40420 on NASA - NSSDCA Website

View COSMOS 2503, 40420 on Heavens-Above

View COSMOS 2503, 40420 on Keep Track

View COSMOS 2503, 40420 on Celestrak

View COSMOS 2503, 40420 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 2503, 40420

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-19T17:19:01.702Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 2015 (2015-02-27 UTC)

COSMOS 2503 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 2503, 40420 on other resources

Documentation

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