SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-X and HSD-Xi High-speed Data Terminal
23-15-30
A-1
8 MAY 09
A
PPENDIX
A: I
NMARSAT
S
ATELLITE
B
EAM
C
OVERAGE
Inmarsat operates strategically placed geostationary satellites called I-3 and I-4. I-3 satellites
provide access to services such as Swift64 and Aero H/H+, and I-4 satellites provide access
to SBB services.
Each I-3 satellite is located over and named after an OR. The four satellite ORs are:
•
Atlantic Ocean Region-East (AOR-E)
•
Atlantic Ocean Region-West (AOR-W)
•
Indian Ocean Region (IOR)
•
Pacific Ocean Region (POR)
Figure A-1 represents the satellite ORs with approximate transfer coordinates for satellite
transitions.
Figure A-1 Satellite ORs
The four satellite ORs are made up of smaller, spot-beam coverage areas. The following maps
show the Inmarsat satellite spot-beam coverage for the four ORs, and a composite map of
the four regions combined.
NOTE: Figure A-2 and Figure A-3 depict Inmarsat's expectations of coverage but do not
represent a guarantee of service and should not be relied upon. The availability of
service at the edge of coverage areas fluctuates depending upon a variety of
conditions.
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