SL-16 DEB, 25864

Orbit data source: Space-Track

SL-16 DEB, 25864 is space debris in SSO originally from a launch on Sat, 17 Jul 1999 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/25864?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25864, 1999-039E

Orbit

SSO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

SEP MOTOR COVER, Unknown motor

Mass

~0 kg wet, ~1 kg dry

Launch date (UTC)

1999-07-17 (27 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 SL-16 DEB
1 25864U 99039E   26154.18347721  .00000998  00000-0  27851-3 0  9998
2 25864  98.5253 233.6663 0162743 168.0676 247.5136 14.40995751407920

Epoch: 2026-06-03T04:24Z

TLE epoch observation values (Epoch: 2026-06-03T04:24:12.430Z)

Latitude

53.11404°

Longitude

-95.49193°

Altitude

809.876 km

Speed

7.429 km/s

True Right ascension

14h 48m 49s

True Declination

52° 56' 60"

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

04:47:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

868.374 km

Perigee altitude

636.288 km

Semi-major axis

7,130.468 km

Eccentricity

0.01627

Inclination

98.5253°

RAAN

233.6663°

Arg. of periapsis

168.0676°

True anomaly

245.80405°

Mean anomaly

247.5136°

Eccentric anomaly

246.65747°

Mean motion

3.60468 °/min

Orbital period

99.87 mins

BSTAR

0.00027851

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Other satellites on launch #39 in the year 1999 (1999-07-17 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.
9 mins	2026-06-04 05:16:21.430Z	165.647° S	2026-06-04 05:20:21.430Z	333.646° NNW	44.957°	2026-06-04 05:25:21.430Z	346.611° N
7 mins	2026-06-04 17:24:21.430Z	40.302° NE	2026-06-04 17:28:21.430Z	105.827° ESE	23.13°	2026-06-04 17:31:21.430Z	150.96° SSE

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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, 25864 on other resources

View SL-16 DEB, 25864 on Heavens-Above

View SL-16 DEB, 25864 on Keep Track

View SL-16 DEB, 25864 on Celestrak

View SL-16 DEB, 25864 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, 25864

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-06-03T04:24:12.430Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #39 in the year 1999 (1999-07-17 UTC)

SL-16 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-16 DEB, 25864 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago