|
gptkbp:instance_of
|
gptkb:Earth_observation
|
|
gptkbp:availability
|
gptkb:Yes
|
|
gptkbp:civilian_usage
|
gptkb:Yes
|
|
gptkbp:contribution_to_gps
|
Improved accuracy
|
|
gptkbp:data_type
|
Binary
|
|
gptkbp:data_usage
|
50 bps
|
|
gptkbp:debut
|
gptkb:1990
February 14, 1989
|
|
gptkbp:development
|
gptkb:1980s
|
|
gptkbp:equipment
|
GPS receivers
|
|
gptkbp:expansion
|
Ongoing
|
|
gptkbp:frequency
|
gptkb:L2
gptkb:L1
L-band
-130 d Bm
|
|
gptkbp:funding
|
gptkb:U._S._Government
|
|
gptkbp:ground_control_segment
|
gptkb:Air_Force_Space_Command
|
|
gptkbp:ground_station_locations
|
Various worldwide
|
|
gptkbp:has_ability
|
gptkb:1990
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
GPS Block II
|
|
gptkbp:is_integrated_with
|
With other systems
|
|
gptkbp:is_monitored_by
|
Continuous
|
|
gptkbp:launch_date
|
gptkb:1989
|
|
gptkbp:launch_platform
|
gptkb:United_States_Air_Force
|
|
gptkbp:launch_site
|
gptkb:Cape_Canaveral_Air_Force_Station
|
|
gptkbp:launch_vehicle
|
gptkb:Delta_II
|
|
gptkbp:launched
|
gptkb:12
|
|
gptkbp:maintenance
|
Regular updates
|
|
gptkbp:manufacturer
|
gptkb:Rockwell_International
|
|
gptkbp:market_segment
|
gptkb:Master_Control_Station
Military, Civilian
|
|
gptkbp:military_technology
|
gptkb:Yes
|
|
gptkbp:modulation
|
C/ A code
P(Y) code
|
|
gptkbp:navigation_system
|
< 100 meters
|
|
gptkbp:orbit_type
|
gptkb:12
gptkb:GPS_IIA-1
gptkb:GPS_IIA-12
gptkb:constellation
1,000 kg
Automated and manual
A2100
7.5 years
|
|
gptkbp:orbital_altitude
|
20,200 kilometers
|
|
gptkbp:orbital_period
|
12 hours
|
|
gptkbp:performance
|
gptkb:High
|
|
gptkbp:power_source
|
Solar panels
|
|
gptkbp:purpose
|
Navigation
|
|
gptkbp:reliability
|
gptkb:High
|
|
gptkbp:satellite_positioning
|
Triangulation
|
|
gptkbp:security
|
gptkb:Yes
|
|
gptkbp:signal_delay
|
< 1 microsecond
|
|
gptkbp:status
|
Decommissioned
|
|
gptkbp:successor
|
gptkb:GPS_Block_III
|
|
gptkbp:system
|
Satellite-based navigation system
|
|
gptkbp:system_impact
|
Global navigation capabilities
|
|
gptkbp:system_interoperability
|
With other navigation systems
|
|
gptkbp:technology
|
Satellite technology
|
|
gptkbp:total_operational_life
|
7 years
|
|
gptkbp:upgrades
|
gptkb:GPS_Block_IIR
|
|
gptkbp:user_countries
|
Global
|
|
gptkbp:bfsParent
|
gptkb:Earth_observation
|
|
gptkbp:bfsLayer
|
4
|