IUS R/B(2), 25869

Orbit data source: Space-Track

IUS R/B(2), 25869 is space debris in HEO 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/25869?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25869, 1999-040D

Orbit

HEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

PW CSD

Mission

Spacecraft

Bus & Motor

ORBUS 6, ORBUS 6

Mass

1,079 kg wet, 1,079 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, 1.4 m

Radar Cross Section

8.086 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 IUS R/B(2)
1 25869U 99040D   26085.29791730 -.00000269  00000-0  00000+0 0  9998
2 25869  28.5581 180.0715 8190030  39.9152 357.2711  0.97238338 94746

Epoch: 2026-03-26T07:09Z

TLE epoch observation values (Epoch: 2026-03-26T07:09:00.054Z)

Latitude

-0.00008°

Longitude

-110.67713°

Altitude

2,285.909 km

Speed

9.096 km/s

True Right ascension

12h 01m 17s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

04:08:20

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

71,913.09 km

Perigee altitude

1,412.107 km

Semi-major axis

43,040.735 km

Eccentricity

0.819

Inclination

28.5581°

RAAN

180.0715°

Arg. of periapsis

39.9152°

True anomaly

316.36579°

Mean anomaly

357.2711°

Eccentric anomaly

345.60592°

Mean motion

0.24307 °/min

Orbital period

1,481.08 mins

BSTAR

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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(2) 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.
127 mins	2026-03-26 22:51:14.309Z	198.414° SSW	2026-03-26 22:51:14.309Z	198.414° SSW	20.913°	2026-03-27 00:58:14.309Z	220.52° SW
364 mins	2026-03-27 16:47:14.309Z	123.873° SE	2026-03-27 20:50:14.309Z	174.583° S	24.662°	2026-03-27 22:51:14.309Z	201.404° SSW

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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(2), 25869 on other resources

View IUS R/B(2), 25869 on Heavens-Above

View IUS R/B(2), 25869 on Keep Track

View IUS R/B(2), 25869 on Celestrak

View IUS R/B(2), 25869 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(2), 25869

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-03-26T07:09:00.054Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

IUS R/B(2) Visibility forecast

Co-orbital & Co-planar RSOs

Check out IUS R/B(2), 25869 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago