IUS R/B(1), 25868

Orbit data source: Space-Track

IUS R/B(1), 25868 is space debris originally from a launch on Fri, 23 Jul 1999 UTC launched from the Air Force Eastern Test Range (AFETR). 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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Iframe URL

https://www.satcat.com/sats-embedded/25868?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25868, 1999-040C

Orbit

Active

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

PW CSD

Mission

Spacecraft

Bus & Motor

ORBUS 21, ORBUS 21

Mass

1,164 kg wet, 1,164 kg dry

Launch date (UTC)

1999-07-23 (26 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, Unknown HBR

Radar Cross Section

8.491 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 23 hours ago

TLE from 23 hours ago

0 IUS R/B(1)
1 25868U 99040C   25360.01500968  .00019643  00000-0  92758-3 0  9993
2 25868  28.4767 317.8073 4365540 158.1639 228.3888  6.80274183601795

Epoch: 2025-12-26T00:21Z

TLE epoch observation values (Epoch: 2025-12-26T00:21:36.836Z)

Latitude

0.00002°

Longitude

-142.35792°

Altitude

9,629.18 km

Speed

3.992 km/s

True Right ascension

21h 11m 13s

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

23:02:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

10,528.599 km

Perigee altitude

253.032 km

Semi-major axis

11,768.953 km

Eccentricity

0.43655

Inclination

28.4767°

RAAN

317.8073°

Arg. of periapsis

158.1639°

True anomaly

201.87375°

Mean anomaly

228.3888°

Eccentric anomaly

214.29522°

Mean motion

1.69995 °/min

Orbital period

211.77 mins

BSTAR

0.00092758

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Other satellites on launch #40 in the year 1999 (1999-07-23 UTC)

STS 93, 25866 (Decayed)

IUS DEB, 29037

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IUS R/B(1) 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.
59 mins	2025-12-27 01:06:09.988Z	240.673° WSW	2025-12-27 01:54:09.988Z	179.083° S	38.712°	2025-12-27 02:05:09.988Z	105.207° ESE
12 mins	2025-12-27 05:32:09.988Z	260.565° W	2025-12-27 05:40:09.988Z	216.403° SW	22.628°	2025-12-27 05:44:09.988Z	161.163° S
26 mins	2025-12-27 18:13:09.988Z	137.948° SSE	2025-12-27 18:27:09.988Z	129.02° SE	10.655°	2025-12-27 18:39:09.988Z	120.777° SE
93 mins	2025-12-27 21:31:09.988Z	208.053° SW	2025-12-27 22:40:09.988Z	156.613° SSE	33.76°	2025-12-27 23:04:09.988Z	97.365° ESE

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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 IUS R/B(1), 25868 on other resources

View IUS R/B(1), 25868 on Heavens-Above

View IUS R/B(1), 25868 on Keep Track

View IUS R/B(1), 25868 on Celestrak

View IUS R/B(1), 25868 on Gunter's Space Page

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

IUS R/B(1), 25868

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2025-12-26T00:21:36.836Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #40 in the year 1999 (1999-07-23 UTC)

IUS R/B(1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out IUS R/B(1), 25868 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 23 hours ago