IUS R/B(1), 19549

Orbit data source: Space-Track

IUS R/B(1), 19549 is space debris in HEO originally from a launch on Thu, 29 Sep 1988 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 src="https://www.satcat.com/sats-embedded/19549?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/19549?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

19549, 1988-091C

Orbit

HEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

UTC CSD

Mission

Spacecraft

Bus & Motor

ORBUS 21, Unknown motor

Mass

~1,164 kg wet, ~1,164 kg dry

Launch date (UTC)

1988-09-29 (37 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

7.708 m², Large (>1 m²)

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Last TLE update: 9 hours ago

TLE from 9 hours ago

0 IUS R/B(1)
1 19549U 88091C   26061.77747377  .00002663  00000-0  12896-2 0  9993
2 19549  26.6637 310.8046 6782300 115.3993 326.9201  2.90025302353376

Epoch: 2026-03-02T18:39Z

TLE epoch observation values (Epoch: 2026-03-02T18:39:33.733Z)

Latitude

0°

Longitude

-129.58761°

Altitude

9,442.515 km

Speed

5.585 km/s

True Right ascension

20h 43m 28s

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

07:19:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

28,485.63 km

Perigee altitude

306.355 km

Semi-major axis

20,774.129 km

Eccentricity

0.67823

Inclination

26.6637°

RAAN

310.8046°

Arg. of periapsis

115.3993°

True anomaly

244.54631°

Mean anomaly

326.9201°

Eccentric anomaly

290.52792°

Mean motion

0.72487 °/min

Orbital period

496.64 mins

BSTAR

0.0012896

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Other satellites on launch #91 in the year 1988 (1988-09-29 UTC)

IUS R/B(2), 19550

TDRS 3, 19548

STS 26, 19547 (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.
51 mins	2026-03-03 19:14:11.169Z	233.053° WSW	2026-03-03 19:58:11.169Z	183.139° SSW	28.614°	2026-03-03 20:05:11.169Z	121.775° SE

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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), 19549 on other resources

View IUS R/B(1), 19549 on Heavens-Above

View IUS R/B(1), 19549 on Keep Track

View IUS R/B(1), 19549 on Celestrak

View IUS R/B(1), 19549 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), 19549

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-03-02T18:39:33.733Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #91 in the year 1988 (1988-09-29 UTC)

IUS R/B(1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out IUS R/B(1), 19549 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago