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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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https://www.satcat.com/sats-embedded/15333?theme=dark&initialShowStats=false

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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

Defense Sigint

Bus & Motor

TSELINA-2, Unknown motor

Mass

3,250 kg wet, 3,250 kg dry

Launch date (UTC)

1984-09-28 (41 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 shape, 9.5 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 COSMOS 1603
1 15333U 84106A   25261.44563424  .00000239  00000-0  14927-3 0  9992
2 15333  71.0249 257.2939 0021753 293.5917  66.2921 14.14474724114315

Epoch: 2025-09-18T10:41Z

TLE epoch observation values (Epoch: 2025-09-18T10:41:42.798Z)

Latitude

-0.00002°

Longitude

99.25845°

Altitude

840.212 km

Speed

7.436 km/s

True Right ascension

17h 09m 10s

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

00:34:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

857.729 km

Perigee altitude

826.317 km

Semi-major axis

7,220.16 km

Eccentricity

0.00218

Inclination

71.0249°

RAAN

257.2939°

Arg. of periapsis

293.5917°

True anomaly

66.52058°

Mean anomaly

66.2921°

Eccentric anomaly

66.40632°

Mean motion

3.53772 °/min

Orbital period

101.76 mins

BSTAR

0.00014927

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

SL-12 DEB, 22157 (Decayed)

SL-12 DEB, 22158 (Decayed)

SL-12 DEB, 22159 (Decayed)

SL-12 DEB, 22160 (Decayed)

COSMOS 1603 DEB, 43312

SL-12 R/B(2), 15334

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

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

SL-12 PLAT, 15337 (Decayed)

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

SL-12 DEB, 17358 (Decayed)

SL-12 DEB, 22140 (Decayed)

SL-12 DEB, 22141 (Decayed)

SL-12 DEB, 22142 (Decayed)

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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.
6 mins	2025-09-19 09:19:01.540Z	19.615° NNE	2025-09-19 09:22:01.540Z	54.751° ENE	15.8°	2025-09-19 09:25:01.540Z	87.235° E
10 mins	2025-09-19 11:02:01.540Z	333.973° NNW	2025-09-19 11:06:01.540Z	299.865° NW	44.03°	2025-09-19 11:12:01.540Z	162.899° S
8 mins	2025-09-20 00:10:01.540Z	153.179° SSE	2025-09-20 00:13:01.540Z	108.179° ESE	27.783°	2025-09-20 00:18:01.540Z	43.612° NE
8 mins	2025-09-20 01:54:01.540Z	248.094° W	2025-09-20 01:57:01.540Z	296.346° NW	30.045°	2025-09-20 02:02:01.540Z	4.972° NNE

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: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2025-09-18T10:41:42.798Z)

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: 21 hours ago