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ORBCOMM FM 27, 25481

Orbit data source: Space-Track

ORBCOMM FM 27, 25481 is a payload satellite in LEO that was launched on Wed, 23 Sep 1998 UTC via a PEGASUS XL/HAPS launch vehicle from the Pegasus Launch, Eastern Range Air Space (ERAS). 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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<iframe src="https://www.satcat.com/sats-embedded/25481?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/25481?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25481, 1998-053G

Orbit

LEO

Last TLE update

1 day ago

Origin

Orbcomm Inc. (US)

Manufacturer

OSC-Germantown

Mission

Operational Commercial Communications

Bus & Motor

MICROSTAR, Unknown motor

Mass

42 kg wet, 42 kg dry

Launch date (UTC)

1998-09-23 (27 years ago)

Launch vehicle

PEGASUS XL/HAPS

Launch site

Pegasus Launch, Eastern Range Air Space (ERAS)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 4.3 m

Radar Cross Section

1.484 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 1 day ago

0 ORBCOMM FM 27
1 25481U 98053G   25142.07543269  .00000951  00000-0  35790-3 0  9997
2 25481  45.0066  31.3777 0001110  39.2848 320.8081 14.38044934393915

Epoch: 2025-05-22T01:48Z

TLE epoch observation values (Epoch: 2025-05-22T01:48:37.384Z)

Latitude

0.00001°

Longitude

124.27174°

Altitude

764.35 km

Speed

7.474 km/s

True Right ascension

02h 05m 30s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-5.93158°

Longitude

111.42967°

Altitude

765.46 km

Speed

7.473 km/s

Apparent Right ascension

04h 07m 57s

Apparent Declination

-41° 09' 58"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:52:11

Azimuth

122.129° SE

Elevation

-27.521°

Doppler factor

Orbital elements

Apogee altitude

767.303 km

Perigee altitude

765.717 km

Semi-major axis

7,144.647 km

Eccentricity

0.00011

Inclination

45.0066°

RAAN

31.3777°

Arg. of periapsis

39.2848°

True anomaly

Unknown

Mean anomaly

320.8081°

Eccentric anomaly

Unknown

Mean motion

3.59395 °/min

Orbital period

100.17 mins

BSTAR

0.0003579

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Other satellites on launch #53 in the year 1998 (1998-09-23 UTC)

PEGASUS R/B(1), 25483 (Decayed)

PEGASUS R/B(2), 25484

ORBCOMM FM 27 Visibility forecast

Observer location: undefined°, undefined°

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.
6 mins	2025-05-23 17:59:06.961Z	170.102° S	2025-05-23 18:02:06.961Z	131.223° SE	17.373°	2025-05-23 18:05:06.961Z	95.695° ESE
9 mins	2025-05-23 19:42:06.961Z	232.877° WSW	2025-05-23 19:46:06.961Z	175.376° S	43.079°	2025-05-23 19:51:06.961Z	69.499° E
8 mins	2025-05-23 21:28:06.961Z	278.273° WNW	2025-05-23 21:32:06.961Z	4.263° NNE	38.654°	2025-05-23 21:36:06.961Z	64.915° ENE
8 mins	2025-05-23 23:14:06.961Z	299.183° NW	2025-05-23 23:17:06.961Z	349.824° N	38.464°	2025-05-23 23:22:06.961Z	85.976° E
9 mins	2025-05-24 00:59:06.961Z	288.544° WNW	2025-05-24 01:03:06.961Z	197.039° SSW	43.014°	2025-05-24 01:08:06.961Z	126.776° SE
5 mins	2025-05-24 02:45:06.961Z	255.613° W	2025-05-24 02:47:06.961Z	230.591° WSW	16.823°	2025-05-24 02:50:06.961Z	191.87° SSW

Authenticating...

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Check out ORBCOMM FM 27, 25481 on other resources

View ORBCOMM FM 27, 25481 on NASA - NSSDCA Website

View ORBCOMM FM 27, 25481 on Heavens-Above

View ORBCOMM FM 27, 25481 on Keep Track

View ORBCOMM FM 27, 25481 on Celestrak

View ORBCOMM FM 27, 25481 on Gunter's Space Page

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