ORBCOMM FM 21

25475
Spacetrack Directory Number
1998-09-23
Orbit launches
768.82 km
Average height
26899.49 km/h
Average velocity


Satellite information ORBCOMM FM 21 - SLOT C1

Spacetrack Directory Name ORBCOMM FM 21
Alternative name SLOT C1
Group ORBCOMM
Follow ORBCOMM FM 21 ORBCOMM FM 21 Tracker
Group follow ORBCOMM Tracker ORBCOMM
Pass predictions ORBCOMM FM 21 Pass predictions ORBCOMM FM 21
Orbit launches 1998-09-23 (27 years ago)
Days in orbit 10216
Country/organisation of origin ORBCOMM (ORB)
Starting point ERAS (Wallops Flight Facility, USA)
Type Satellite
Categories
Perigee 779 km
Apogee 783 km
Orbit slope (inclination) 45.01°
Laps per day 14
Orbit LEO (Non-Polar Inclined)
Height ORBCOMM FM 21 768.82 km

Additional information ORBCOMM FM 21

ORBCOMM FM21, also known as Orbcomm C1, is a MicroStar configuration satellite manufactured by OSCG for the purpose of communication M2M/IoT. Launched on September 23, 1998, from ERAS using the Pegasus XL/HAPS launch vehicle, it has dimensions of 0.2 meters in length and 1 meter in diameter with a span of 4.3 meters. The satellite weighs 42 kg at launch and dry mass remains the same. It is powered by two deployable solar arrays and batteries and equipped with an Orbcomm payload for its mission. The satellites shape consists of a cylinder plus two panels and antennas, and it has a radar cross-section (RCS) value of 0.6898. ORBCOMM FM21 was launched into space by the owner ORBC and operated for approximately four years as part of its lifetime expectation.

satellite ORBCOMM FM 21 Date of exalting 23.09.1998y. Average height of ISS ORBCOMM FM 21 hundred 768.82 km. Average velocity ORBCOMM FM 21 is 26899.49 km/h. Inclination ORBCOMM FM 21 satellite 45.01°.

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Average orbit height ORBCOMM FM 21

Average velocity ORBCOMM FM 21

Average inclination ORBCOMM FM 21

Mean right ascension of the ascending node (RAAN) ORBCOMM FM 21

Mean argument of perigee ORBCOMM FM 21

Mean semi-major axis of the orbit ORBCOMM FM 21

Mean orbital eccentricity ORBCOMM FM 21

Update time: 2026-09-11 20:00:22
Average height of ISS ORBCOMM FM 21 is: 768.82km
Average velocity ORBCOMM FM 21 is: 26899.49km/h
Average orbit height ORBCOMM FM 21 is: 45.01°
ORBCOMM FM 21 a new group of Starlink satellites has been launched 1998-09-23
ORBCOMM FM 21 is from 10216 days Days in orbit.