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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: 14 hours ago

TLE from 14 hours ago

0 IRIDIUM 28
1 24948U 97051E   26088.09067617  .00000409  00000-0  12984-3 0  9999
2 24948  86.4007  21.6251 0001788  97.3131 262.8270 14.37654105494773

Epoch: 2026-03-29T02:10Z

TLE epoch observation values (Epoch: 2026-03-29T02:10:34.421Z)

Latitude

0°

Longitude

162.48012°

Altitude

769.475 km

Speed

7.469 km/s

True Right ascension

01h 26m 30s

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

21:54:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

764.496 km

Perigee altitude

761.943 km

Semi-major axis

7,141.356 km

Eccentricity

0.00018

Inclination

86.4007°

RAAN

21.6251°

Arg. of periapsis

97.3131°

True anomaly

262.80667°

Mean anomaly

262.827°

Eccentric anomaly

262.81684°

Mean motion

3.59643 °/min

Orbital period

100.1 mins

BSTAR

0.00012984

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

IRIDIUM 33 DEB, 39787 (Decayed)

IRIDIUM 33 DEB, 34161 (Decayed)

IRIDIUM 33 DEB, 39785 (Decayed)

IRIDIUM 33 DEB, 36498 (Decayed)

IRIDIUM 33 DEB, 36566 (Decayed)

IRIDIUM 33 DEB, 34515 (Decayed)

IRIDIUM 33 DEB, 37134 (Decayed)

IRIDIUM 33 DEB, 35680

IRIDIUM 33 DEB, 37136

IRIDIUM 33 DEB, 34097

IRIDIUM 33 DEB, 36012

IRIDIUM 33 DEB, 38241

IRIDIUM 33 DEB, 35806

IRIDIUM 33 DEB, 35628

IRIDIUM 33 DEB, 37562

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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.
7 mins	2026-03-29 19:00:36.399Z	127.257° SE	2026-03-29 19:04:36.399Z	73.817° E	19.727°	2026-03-29 19:07:36.399Z	36.018° NE
8 mins	2026-03-29 20:40:36.399Z	213.497° SW	2026-03-29 20:44:36.399Z	285.937° WNW	32.714°	2026-03-29 20:48:36.399Z	344.749° N
8 mins	2026-03-30 07:09:36.399Z	15.623° NNE	2026-03-30 07:13:36.399Z	96.764° ESE	35.798°	2026-03-30 07:17:36.399Z	155.328° SSE
5 mins	2026-03-30 08:51:36.399Z	304.159° NW	2026-03-30 08:53:36.399Z	275.46° WNW	17.412°	2026-03-30 08:56:36.399Z	238.757° WSW

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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: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-03-29T02:10:34.421Z)

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: 14 hours ago