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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

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 COSMOS 1603
1 15333U 84106A   26095.30431385 -.00000052  00000-0 -23282-5 0  9994
2 15333  71.0279 200.5879 0020134 346.0820  13.9745 14.14512134142436

Epoch: 2026-04-05T07:18Z

TLE epoch observation values (Epoch: 2026-04-05T07:18:12.716Z)

Latitude

-0.00002°

Longitude

-102.57675°

Altitude

832.263 km

Speed

7.444 km/s

True Right ascension

13h 22m 21s

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

21:15:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

856.432 km

Perigee altitude

827.358 km

Semi-major axis

7,220.032 km

Eccentricity

0.00201

Inclination

71.0279°

RAAN

200.5879°

Arg. of periapsis

346.082°

True anomaly

14.03035°

Mean anomaly

13.9745°

Eccentric anomaly

14.00241°

Mean motion

3.53781 °/min

Orbital period

101.76 mins

BSTAR

-0.0000023282

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

SL-12 DEB, 22149 (Decayed)

SL-12 DEB, 22140 (Decayed)

SL-12 DEB, 22143 (Decayed)

SL-12 DEB, 22150 (Decayed)

SL-12 DEB, 22146 (Decayed)

SL-12 DEB, 22147 (Decayed)

SL-12 DEB, 22158 (Decayed)

SL-12 DEB, 22153 (Decayed)

SL-12 DEB, 22152 (Decayed)

SL-12 DEB, 22154 (Decayed)

SL-12 DEB, 22142 (Decayed)

SL-12 DEB, 22145 (Decayed)

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

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

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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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.
4 mins	2026-04-05 16:21:04.697Z	28.477° NE	2026-04-05 16:23:04.697Z	50.362° ENE	12.477°	2026-04-05 16:25:04.697Z	71.423° E
9 mins	2026-04-05 18:04:04.697Z	342.08° N	2026-04-05 18:08:04.697Z	98.631° ESE	44.127°	2026-04-05 18:13:04.697Z	152.868° SSE
7 mins	2026-04-06 07:12:04.697Z	139.508° SSE	2026-04-06 07:15:04.697Z	97.153° ESE	21.788°	2026-04-06 07:19:04.697Z	50.733° ENE
8 mins	2026-04-06 08:55:04.697Z	234.748° WSW	2026-04-06 08:58:04.697Z	283.288° WNW	34.995°	2026-04-06 09:03:04.697Z	7.974° NNE

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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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-04-05T07:18:12.716Z)

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: 8 hours ago