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COSMOS 343, 4390

Orbit data source: Space-Track

COSMOS 343, 4390 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Sat, 25 Apr 1970 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.

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Iframe URL

https://www.satcat.com/sats-embedded/4390?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

4390, 1970-036H

Orbit

LEO

Last TLE update

12 hours ago

Origin

Federal Space Agency of Russia (Roscosmos) (CIS)

Manufacturer

OKB-10

Mission

Defense Communications

Bus & Motor

STRELA-1 11F625, Unknown motor

Mass

60 kg wet, 60 kg dry

Launch date (UTC)

1970-04-25 (55 years ago)

Launch vehicle

KOSMOS 11K65M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.4 m

Radar Cross Section

0.588 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 12 hours ago

0 COSMOS 343
1 04390U 70036H   25230.43109760 -.00000007  00000-0  53107-4 0  9992
2 04390  74.0270 110.5305 0059444 102.8827  69.6038 12.60455543544940

Epoch: 2025-08-18T10:20Z

TLE epoch observation values (Epoch: 2025-08-18T10:20:46.832Z)

Latitude

6.54231°

Longitude

166.42578°

Altitude

1,406.933 km

Speed

7.165 km/s

True Right ascension

19h 14m 38s

True Declination

6° 30' 24"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-40.77161°

Longitude

-178.14421°

Altitude

1,459.478 km

Speed

7.121 km/s

Apparent Right ascension

22h 18m 57s

Apparent Declination

-45° 38' 59"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

12:51:46

Azimuth

114.385° SE

Elevation

-61.662°

Doppler factor

Orbital elements

Apogee altitude

1,465.236 km

Perigee altitude

1,372.539 km

Semi-major axis

7,797.025 km

Eccentricity

0.00594

Inclination

74.027°

RAAN

110.5305°

Arg. of periapsis

102.8827°

True anomaly

70.24392°

Mean anomaly

69.6038°

Eccentric anomaly

69.92369°

Mean motion

3.15246 °/min

Orbital period

114.2 mins

BSTAR

0.000053107

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Other satellites on launch #36 in the year 1970 (1970-04-25 UTC)

COSMOS 343 Visibility forecast

Observer location: undefined°, undefined°
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.
9 mins	2025-08-19 01:15:10.883Z	11.249° NNE	2025-08-19 01:20:10.883Z	49.718° ENE	15.92°	2025-08-19 01:24:10.883Z	80.566° E
15 mins	2025-08-19 03:11:10.883Z	345.228° N	2025-08-19 03:18:10.883Z	81.499° E	44.066°	2025-08-19 03:26:10.883Z	155.61° SSE
10 mins	2025-08-19 05:09:10.883Z	305.184° NW	2025-08-19 05:13:10.883Z	272.471° WNW	19.514°	2025-08-19 05:19:10.883Z	224.906° SW
13 mins	2025-08-19 16:01:10.883Z	151.654° SSE	2025-08-19 16:07:10.883Z	95.735° ESE	29.274°	2025-08-19 16:14:10.883Z	36.795° NE
14 mins	2025-08-19 17:57:10.883Z	226.581° WSW	2025-08-19 18:03:10.883Z	291.978° WNW	37.679°	2025-08-19 18:11:10.883Z	9.814° NNE