SL-16 DEB, 25403

Orbit data source: Space-Track

SL-16 DEB, 25403 is space debris in SSO originally from a launch on Fri, 10 Jul 1998 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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https://www.satcat.com/sats-embedded/25403?theme=dark&initialShowStats=false

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Identifier

25403, 1998-043K

Orbit

SSO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

SEP MOTOR COVER, Unknown motor

Mass

~0 kg wet, ~1 kg dry

Launch date (UTC)

1998-07-10 (28 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cone, 0.5 m

Radar Cross Section

0.635 m², Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-16 DEB
1 25403U 98043K   26098.05266822  .00000120  00000-0  13272-3 0  9995
2 25403  98.5990  37.0565 0211167 192.1332 177.8442 13.78554272394712

Epoch: 2026-04-08T01:15Z

TLE epoch observation values (Epoch: 2026-04-08T01:15:50.534Z)

Latitude

9.89779°

Longitude

-179.72891°

Altitude

1,126.214 km

Speed

7.213 km/s

True Right ascension

02h 22m 12s

True Declination

9° 50' 33"

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

16:17:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,121.315 km

Perigee altitude

811.138 km

Semi-major axis

7,344.363 km

Eccentricity

0.02112

Inclination

98.599°

RAAN

37.0565°

Arg. of periapsis

192.1332°

True anomaly

177.93288°

Mean anomaly

177.8442°

Eccentric anomaly

177.88877°

Mean motion

3.44835 °/min

Orbital period

104.4 mins

BSTAR

0.00013272

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Other satellites on launch #43 in the year 1998 (1998-07-10 UTC)

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SL-16 DEB 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	2026-04-08 10:32:00.554Z	327.034° NNW	2026-04-08 10:34:00.554Z	306.186° NW	12.414°	2026-04-08 10:36:00.554Z	284.091° WNW
10 mins	2026-04-08 18:47:00.554Z	117.626° SE	2026-04-08 18:51:00.554Z	71.884° E	27.989°	2026-04-08 18:57:00.554Z	6.275° NNE
11 mins	2026-04-08 20:29:00.554Z	193.908° SSW	2026-04-08 20:34:00.554Z	255.672° W	35.793°	2026-04-08 20:40:00.554Z	332.123° NNW
5 mins	2026-04-09 07:29:00.554Z	62.72° ENE	2026-04-09 07:31:00.554Z	87.278° E	16.601°	2026-04-09 07:34:00.554Z	124.302° SE
9 mins	2026-04-09 09:11:00.554Z	0.445° NNE	2026-04-09 09:15:00.554Z	282.252° WNW	40.089°	2026-04-09 09:20:00.554Z	211.217° SW

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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 SL-16 DEB, 25403 on other resources

View SL-16 DEB, 25403 on Heavens-Above

View SL-16 DEB, 25403 on Keep Track

View SL-16 DEB, 25403 on Celestrak

View SL-16 DEB, 25403 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SL-16 DEB, 25403

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-08T01:15:50.534Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #43 in the year 1998 (1998-07-10 UTC)

SL-16 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-16 DEB, 25403 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago