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 (27 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 2.1 m

Radar Cross Section

8.491 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 IUS R/B(1)
1 25868U 99040C   26265.03412084  .00018560  00000-0  61696-3 0  9995
2 25868  28.4619 247.5336 4318566 138.8150 263.4695  6.91196333620330

Epoch: 2026-09-22T00:49Z

TLE epoch observation values (Epoch: 2026-09-22T00:49:08.040Z)

Latitude

-0.00001°

Longitude

-125.65531°

Altitude

7,646.497 km

Speed

4.755 km/s

True Right ascension

16h 30m 08s

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

16:02:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

10,295.392 km

Perigee altitude

237.718 km

Semi-major axis

11,644.692 km

Eccentricity

0.43186

Inclination

28.4619°

RAAN

247.5336°

Arg. of periapsis

138.815°

True anomaly

221.22705°

Mean anomaly

263.4695°

Eccentric anomaly

241.68618°

Mean motion

1.72723 °/min

Orbital period

208.43 mins

BSTAR

0.00061696

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

STS 93, 25866 (Decayed)

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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.
54 mins	2026-09-23 00:52:16.963Z	223.22° SW	2026-09-23 01:34:16.963Z	171.624° S	39.812°	2026-09-23 01:46:16.963Z	106.607° ESE
15 mins	2026-09-23 05:08:16.963Z	253.231° W	2026-09-23 05:19:16.963Z	196.751° SSW	33.662°	2026-09-23 05:23:16.963Z	134.204° SE
73 mins	2026-09-23 21:06:16.963Z	185.177° SSW	2026-09-23 21:55:16.963Z	148.999° SSE	22.847°	2026-09-23 22:19:16.963Z	110.198° 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: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-09-22T00:49:08.040Z)

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: 22 hours ago