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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/25868?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

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, Unknown HBR

Radar Cross Section

8.491 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 IUS R/B(1)
1 25868U 99040C   26085.35685787  .00022058  00000-0  94577-3 0  9993
2 25868  28.4503 175.1683 4347522  30.4912 348.8815  6.84202564607962

Epoch: 2026-03-26T08:33Z

TLE epoch observation values (Epoch: 2026-03-26T08:33:52.519Z)

Latitude

0.00001°

Longitude

-137.10748°

Altitude

534.453 km

Speed

9.018 km/s

True Right ascension

11h 40m 40s

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

04:09:36

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

10,442.727 km

Perigee altitude

248.761 km

Semi-major axis

11,723.881 km

Eccentricity

0.43475

Inclination

28.4503°

RAAN

175.1683°

Arg. of periapsis

30.4912°

True anomaly

329.55168°

Mean anomaly

348.8815°

Eccentric anomaly

340.61279°

Mean motion

1.70976 °/min

Orbital period

210.56 mins

BSTAR

0.00094577

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

STS 93, 25866 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

IUS R/B(1) Visibility forecast

Loading observer location...
Set Observer location

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.
27 mins	2026-03-27 12:54:30.581Z	241.791° WSW	2026-03-27 13:00:30.581Z	172.344° S	34.46°	2026-03-27 13:21:30.581Z	110.141° ESE
70 mins	2026-03-27 16:36:30.581Z	253.364° W	2026-03-27 16:51:30.581Z	198.693° SSW	31.479°	2026-03-27 17:46:30.581Z	147.025° SSE
44 mins	2026-03-27 20:43:30.581Z	236.242° WSW	2026-03-27 21:02:30.581Z	219.734° SW	12.3°	2026-03-27 21:27:30.581Z	203.082° SW

Items per page:

1–3 of 3 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-03-26T08:33:52.519Z)

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: 14 hours ago