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COSMOS 1603, 15333

Orbit data source: Space-Track

COSMOS 1603, 15333 is a payload satellite owned by TsNII-108 (CIS) in LEO that was launched on Fri, 28 Sep 1984 UTC via a PROTON-K/DM-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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Identifier

15333, 1984-106A

Orbit

LEO

Country

CIS

Related business

Central Scientific Research Institute of Precision Instrument Engineering (TsNII-108) (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

TSELINA-2, Unknown motor

Mass

3,250 kg wet, 3,250 kg dry

Launch date (UTC)

1984-09-28 (42 years ago)

Launch vehicle

PROTON-K/DM-2

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CYL + 2 PAN + ANT, 6.1 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 COSMOS 1603
1 15333U 84106A   26272.52000099  .00000353  00000-0  20809-3 0  9991
2 15333  71.0271 189.2162 0017513  81.9986 278.3123 14.14531623167495

Epoch: 2026-09-29T12:28Z

TLE epoch observation values (Epoch: 2026-09-29T12:28:48.085Z)

Latitude

-0.00003°

Longitude

-6.268°

Altitude

844.5 km

Speed

7.432 km/s

True Right ascension

12h 36m 51s

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

03:46:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

854.473 km

Perigee altitude

829.184 km

Semi-major axis

7,219.966 km

Eccentricity

0.00175

Inclination

71.0271°

RAAN

189.2162°

Arg. of periapsis

81.9986°

True anomaly

278.11366°

Mean anomaly

278.3123°

Eccentric anomaly

278.21299°

Mean motion

3.53786 °/min

Orbital period

101.76 mins

BSTAR

0.00020809

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Other satellites on launch #106 in the year 1984 (1984-09-28 UTC)

SL-12 R/B(2), 15334

SL-12 R/B(AUX MOTOR), 15335

SL-12 R/B(AUX MOTOR), 15338

SL-12 DEB, 22145 (Decayed)

SL-12 DEB, 22153 (Decayed)

SL-12 DEB, 22149 (Decayed)

SL-12 DEB, 22157 (Decayed)

SL-12 DEB, 22155 (Decayed)

SL-12 DEB, 22141 (Decayed)

SL-12 DEB, 22142 (Decayed)

COSMOS 1603 DEB, 43312

SL-12 R/B(1), 15336 (Decayed)

SL-12 PLAT, 15337 (Decayed)

SL-12 DEB, 17358 (Decayed)

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COSMOS 1603 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.
10 mins	2026-09-30 19:08:02.334Z	172.238° S	2026-09-30 19:13:02.334Z	105.25° ESE	39.624°	2026-09-30 19:18:02.334Z	38.779° NE
7 mins	2026-09-30 20:54:02.334Z	256.086° W	2026-09-30 20:57:02.334Z	300.243° NW	28.713°	2026-09-30 21:01:02.334Z	356.107° N
5 mins	2026-10-01 04:05:02.334Z	24.572° NE	2026-10-01 04:07:02.334Z	50.184° ENE	18.616°	2026-10-01 04:10:02.334Z	86.983° E
9 mins	2026-10-01 05:48:02.334Z	328.147° NNW	2026-10-01 05:52:02.334Z	230.672° WSW	66.629°	2026-10-01 05:57:02.334Z	169.151° S

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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 1603, 15333 on other resources

View COSMOS 1603, 15333 on NASA - NSSDCA Website

View COSMOS 1603, 15333 on Heavens-Above

View COSMOS 1603, 15333 on Keep Track

View COSMOS 1603, 15333 on Celestrak

View COSMOS 1603, 15333 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 1603, 15333

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-09-29T12:28:48.085Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #106 in the year 1984 (1984-09-28 UTC)

COSMOS 1603 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1603, 15333 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago