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IRIDIUM 28, 24948

Orbit data source: Space-Track

IRIDIUM 28, 24948 is a payload satellite owned by Iridium (US) in LEO that was launched on Sun, 14 Sep 1997 UTC via a PROTON-K/17S40 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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https://www.satcat.com/sats-embedded/24948?theme=dark&initialShowStats=false

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Identifier

24948, 1997-051E

Orbit

LEO

Country

Related business

Iridium Communications Inc. (US)

Manufacturer

MOTO/LMMS

Mission

Non-operational Commercial Communications

Bus & Motor

LM700, Unknown motor

Mass

662 kg wet, 556 kg dry

Launch date (UTC)

1997-09-14 (29 years ago)

Launch vehicle

PROTON-K/17S40

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 4.0 m

Radar Cross Section

5.666 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 IRIDIUM 28
1 24948U 97051E   26139.31704286  .00000203  00000-0  60966-4 0  9997
2 24948  86.3976   0.1077 0002674  82.0674 278.0827 14.37684204502133

Epoch: 2026-05-19T07:36Z

TLE epoch observation values (Epoch: 2026-05-19T07:36:32.503Z)

Latitude

-0.00002°

Longitude

8.97958°

Altitude

768.948 km

Speed

7.47 km/s

True Right ascension

00h 00m 25s

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

04:35:39

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

765.029 km

Perigee altitude

761.21 km

Semi-major axis

7,141.257 km

Eccentricity

0.00027

Inclination

86.3976°

RAAN

0.1077°

Arg. of periapsis

82.0674°

True anomaly

278.05236°

Mean anomaly

278.0827°

Eccentric anomaly

278.06753°

Mean motion

3.59651 °/min

Orbital period

100.1 mins

BSTAR

0.000060966

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Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)

IRIDIUM 33 DEB, 33850

IRIDIUM 33 DEB, 33887

IRIDIUM 33 DEB, 33775

IRIDIUM 33 DEB, 34362 (Decayed)

IRIDIUM 33 DEB, 34506 (Decayed)

IRIDIUM 33 DEB, 34531 (Decayed)

IRIDIUM 33 DEB, 33959 (Decayed)

IRIDIUM 33 DEB, 34143 (Decayed)

IRIDIUM 33 DEB, 46978 (Decayed)

IRIDIUM 33 DEB, 35751 (Decayed)

IRIDIUM 33 DEB, 33867 (Decayed)

IRIDIUM 33 DEB, 34492

IRIDIUM 33 DEB, 36080

IRIDIUM 33 DEB, 37550

IRIDIUM 33 DEB, 34538

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IRIDIUM 28 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.
9 mins	2026-05-20 02:33:09.695Z	6.047° NNE	2026-05-20 02:38:09.695Z	101.193° ESE	40.488°	2026-05-20 02:42:09.695Z	163.283° S
4 mins	2026-05-20 04:16:09.695Z	302.263° NW	2026-05-20 04:18:09.695Z	276.617° WNW	14.026°	2026-05-20 04:20:09.695Z	252.681° W
8 mins	2026-05-20 15:28:09.695Z	194.697° SSW	2026-05-20 15:32:09.695Z	289.339° WNW	42.131°	2026-05-20 15:36:09.695Z	354.556° N

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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 IRIDIUM 28, 24948 on other resources

View IRIDIUM 28, 24948 on NASA - NSSDCA Website

View IRIDIUM 28, 24948 on Heavens-Above

View IRIDIUM 28, 24948 on Keep Track

View IRIDIUM 28, 24948 on Celestrak

View IRIDIUM 28, 24948 on Gunter's Space Page

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

IRIDIUM 28, 24948

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-05-19T07:36:32.503Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #51 in the year 1997 (1997-09-14 UTC)

IRIDIUM 28 Visibility forecast

Co-orbital & Co-planar RSOs

Check out IRIDIUM 28, 24948 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago