|
gptkbp:instance_of
|
gptkb:satellite
|
|
gptkbp:bus_connections
|
gptkb:Boeing_702
|
|
gptkbp:command_structure
|
portable terminals
|
|
gptkbp:communication_system
|
IP-based services
|
|
gptkbp:constellation
|
I-4 constellation
|
|
gptkbp:coverage
|
yes
global
|
|
gptkbp:data_usage
|
high data throughput
up to 432 kbps
|
|
gptkbp:end_of_life
|
2024
|
|
gptkbp:frequency
|
1.5 GHz
L-band
|
|
gptkbp:home_ground
|
Inmarsat ground stations
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Inmarsat I-4 F4 satellite
|
|
gptkbp:launch_date
|
2008-03-14
|
|
gptkbp:launch_mass
|
6,000 kg
|
|
gptkbp:launch_site
|
gptkb:Centre_Spatial_Guyanais
|
|
gptkbp:launch_vehicle
|
gptkb:Ariane_5
|
|
gptkbp:manufacturer
|
gptkb:Boeing
|
|
gptkbp:mass
|
6,000 kg
|
|
gptkbp:network
|
gptkb:Internet_services
|
|
gptkbp:operator
|
gptkb:Inmarsat
|
|
gptkbp:orbit_type
|
gptkb:geostationary_orbit
gptkb:Inmarsat_network
gptkb:satellite
15 years
data relay
fourth generation
commercial satellite
global satellite network
L-band frequency
geostationary deployment
|
|
gptkbp:orbital_altitude
|
98.45° E
|
|
gptkbp:powers
|
12 k W
|
|
gptkbp:purpose
|
gptkb:communication
|
|
gptkbp:satellite_link
|
uplink and downlink
|
|
gptkbp:satellite_usage
|
gptkb:Telecommunications
|
|
gptkbp:series
|
Inmarsat I-4 series
|
|
gptkbp:service
|
gptkb:2008
|
|
gptkbp:service_area
|
maritime, aviation, land
|
|
gptkbp:service_type
|
mobile satellite services
broadband data services
|
|
gptkbp:services
|
voice and data services
emergency services, maritime communications
|
|
gptkbp:services_provided
|
gptkb:Inmarsat_Global_Limited
|
|
gptkbp:status
|
operational
|
|
gptkbp:transmission
|
radio waves
|
|
gptkbp:transponders
|
multiple transponders
|
|
gptkbp:type
|
geostationary satellite
|
|
gptkbp:bfsParent
|
gptkb:Inmarsat_plc
|
|
gptkbp:bfsLayer
|
6
|