|
gptkbp:instance_of
|
gptkb:satellite
|
|
gptkbp:communication_frequency
|
L-band
|
|
gptkbp:control_frequency
|
1.57542 GHz
|
|
gptkbp:control_system
|
atomic clock
|
|
gptkbp:data_accuracy
|
high precision
|
|
gptkbp:data_format
|
binary
|
|
gptkbp:data_processing
|
real-time processing
|
|
gptkbp:data_transmission
|
real-time
|
|
gptkbp:debut
|
January 1997
part of GPS program
|
|
gptkbp:design
|
7.5 years
|
|
gptkbp:fifth_block
|
gptkb:Block_IIF
|
|
gptkbp:first_block
|
Block I
|
|
gptkbp:fourth_block
|
gptkb:Block_IIR
|
|
gptkbp:frequency_division
|
multiple access
|
|
gptkbp:global_coverage
|
worldwide coverage
|
|
gptkbp:ground_segment
|
GPS control segment
|
|
gptkbp:has_programs
|
gptkb:NAVSTAR_GPS
|
|
gptkbp:has_units
|
gptkb:12
|
|
gptkbp:home_ground
|
gptkb:GPS_Operations_Center
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
GPS Block IIR satellites
|
|
gptkbp:international_use
|
available globally
|
|
gptkbp:is_integrated_with
|
integrated with other systems
|
|
gptkbp:last_launch
|
gptkb:2004
|
|
gptkbp:launch_date
|
gptkb:1997
|
|
gptkbp:launch_site
|
gptkb:Cape_Canaveral_Air_Force_Station
|
|
gptkbp:launch_vehicle
|
gptkb:Delta_II
|
|
gptkbp:manufacturer
|
gptkb:Lockheed_Martin
|
|
gptkbp:mass
|
approximately 1,600 kg
|
|
gptkbp:modulation
|
gptkb:CDMA
|
|
gptkbp:navigation_accuracy
|
within 10 meters
|
|
gptkbp:navigation_signal
|
P(Y) code
|
|
gptkbp:navigation_system
|
gptkb:Earth_observation
|
|
gptkbp:operational_lifetime
|
approximately 10 years
|
|
gptkbp:orbit_type
|
modular
ground-based control
navigation satellite
medium Earth orbit (MEO)
|
|
gptkbp:orbital_altitude
|
approximately 20,200 km
|
|
gptkbp:orbital_period
|
approximately 12 hours
|
|
gptkbp:part_of
|
gptkb:Earth_observation
|
|
gptkbp:positioning_accuracy
|
within 5 meters
|
|
gptkbp:power_source
|
solar panels
|
|
gptkbp:primary_function
|
gptkb:navigation
|
|
gptkbp:replaced_by
|
gptkb:GPS_Block_IIF_satellites
|
|
gptkbp:satellite_health
|
monitored continuously
|
|
gptkbp:second_block
|
Block II
|
|
gptkbp:signal_encryption
|
available for military use
|
|
gptkbp:signal_interference
|
minimized through design
|
|
gptkbp:signal_modulation_type
|
BPSK
|
|
gptkbp:signal_reception
|
requires line of sight
|
|
gptkbp:signal_redundancy
|
high redundancy
|
|
gptkbp:signal_strength
|
high
|
|
gptkbp:signal_type
|
L1, L2, L5
|
|
gptkbp:sixth_block
|
Block III
|
|
gptkbp:status
|
active
|
|
gptkbp:status_update
|
regularly monitored
|
|
gptkbp:successor
|
gptkb:GPS_Block_IIF_satellites
|
|
gptkbp:technology
|
GPS technology
|
|
gptkbp:third_block
|
gptkb:Block_IIA
|
|
gptkbp:user_access
|
24/7 access
|
|
gptkbp:user_applications
|
aviation, maritime, land navigation
|
|
gptkbp:user_equipment
|
GPS receivers
|
|
gptkbp:user_segment
|
military and civilian
|
|
gptkbp:bfsParent
|
gptkb:GPS_IIF_satellites
|
|
gptkbp:bfsLayer
|
5
|