Orbcomm 1's specifications
|
Prime
contractor
|
OSC
|
|
Platform
|
Microstar
|
|
Mass
at launch
|
40
kg
|
|
Mass
in orbit
|
|
|
Diameter
|
1.04
m stowed
|
|
Height
|
0.165
m stowed
|
|
Width
|
2.2235
m deployed
|
|
Stabilization
|
gravity
gradient
|
|
DC
power
|
|
|
Design
lifetime
|
5-7
years
|
|
Telemetry
|
57.6
kbps in VHF
|
Deploys a 3.28 m long VHF/UHF communications antenna.
Gateway to satellite: 148 - 149.9 MHz (57.6 kbps)
Satellite to client: 137 - 138 MHz (4.8 kbps)
Client to satellite: 148 - 149.9 MHz (2.4 kbps)
Satellite to gateway: 137 - 138 MHz (57.6 kbps)
Beacons: 400.05 - 400.15 MHz (often 400.100 MHz)
Addressing based on X400 protocol. Signals in symmetric differential PSK
(SDPSK)