SLOT C5 - Norad ID: 25479
| Spacetrack Directory Name | ORBCOMM FM25 |
| Alternative name | SLOT C5 |
| Group | ORBCOMM |
| Orbit launches |
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| Deorbitation |
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| Country/organisation of origin | ORBCOMM (ORB) |
| Starting point | ERAS (Wallops Flight Facility, USA) |
| Type | Satellite |
| Categories | |
| Perigee | 780 km |
| Apogee | 783 km |
ORBCOMM FM25, also known as Orbcomm C5, is a MicroStar configuration satellite owned by ORBC and manufactured by OSCG. It was launched on September 23, 1998, from ERAS using the Pegasus XL/HAPS launch vehicle. The satellite measures 0.2 meters in length with a diameter of 1 meter and has a span of 4.3 meters due to its two deployable solar arrays. Its dry mass is 42 kilograms, matching its launch mass. Equipped for Communication M2M/IoT purposes, the Orbcomm payload on ORBCOMM FM25 uses batteries alongside the solar arrays for power generation. The satellites shape consists of a cylinder with two panels and an antenna, and it has an RCS of 0.67. Its mission was to last approximately four years following its launch date.
satellite ORBCOMM FM25 Date of exalting 23.09.1998y.