Spacecraft information: ORBCOMM FM21

Launch Details
Launched 22 September 1998
Flight ended –
Status Non-operational
Category Orbcomm
Launch site Eastern Range Airspace
Owner ORBCOMM
NORAD ID 25475
COSPAR ID 1998-053A
Alternative names SLOT C1
Observing

Current orbital elements

Inclination 45.007°
Eccentricity 0.00013
RA ascending node 8.210 hr
Argument perigee 121.668°
Mean anomaly 238.430°
Orbital period 100.153 min
Epoch of osculation 17 Dec 2025, 01:43

See historical orbital elements »

Derived Quantities

Min Altitude 772.0 km
Mean Altitude 772.9 km
Peak Altitude 773.8 km

Launched alongside

ORBCOMM FM22 ORBCOMM FM23 ORBCOMM FM24 ORBCOMM FM25 ORBCOMM FM26 ORBCOMM FM27 ORBCOMM FM28 PEGASUS R/B(1) PEGASUS R/B(2)

Orbital History

Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.

Share

South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PST

Color scheme


© Dominic Ford 2011–2025.

For more information including contact details, click here.
Our privacy policy is here.
Last updated: 17 Dec 2025, 19:19 UTC
Website designed by .

Site hosted by