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gptkbp:instance_of
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gptkb:satellite
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gptkbp:bfsLayer
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4
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gptkbp:bfsParent
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gptkb:GPS_constellation
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gptkbp:communication
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BPSK
S-band
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gptkbp:constellation
|
24 satellites
4 satellites
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gptkbp:country
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gptkb:battle
|
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gptkbp:covered_by
|
global coverage
resistant to jamming
|
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gptkbp:data_usage
|
50 bps
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gptkbp:debut_year
|
gptkb:1985
February 22, 1978
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|
gptkbp:decommissioned
|
gptkb:1996
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gptkbp:designed_by
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gptkb:aircraft
|
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gptkbp:developer
|
1973-1978
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gptkbp:elevation
|
20,200 km
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gptkbp:frequency
|
FDMA
-130 d Bm
L1 frequency (1575.42 M Hz)
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|
gptkbp:gps
|
gptkb:100_meters
10-20 meters
part of the GPS constellation
initiated the GPS program
multiple satellites for reliability
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|
gptkbp:healthcare
|
monitored by ground control
|
|
gptkbp:home_ground
|
gptkb:GPS_Control_Segment
gptkb:Schriever_Space_Force_Base
GPS ground control stations
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Block I satellites
|
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gptkbp:involved_units
|
gptkb:11
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|
gptkbp:launch_date
|
gptkb:1978
|
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gptkbp:launch_site
|
gptkb:United_Launch_Alliance
gptkb:Cape_Canaveral_Air_Force_Station
|
|
gptkbp:launch_vehicle
|
Delta 3910
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gptkbp:manufacturer
|
gptkb:Rockwell_International
|
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gptkbp:market
|
approximately $20 million
|
|
gptkbp:market_segment
|
military and civilian
|
|
gptkbp:military_technology
|
available for civilian use
primarily for military navigation
|
|
gptkbp:mission
|
modular design
ground control operations
Medium Earth Orbit (MEO)
C/ A code
Block I bus
configured for optimal performance
|
|
gptkbp:navigation_system
|
gptkb:satellite
better than 10 meters
GPS navigation message
subsequent blocks
|
|
gptkbp:operational_area
|
approximately 5 years
|
|
gptkbp:orbital_inclination
|
55 degrees
|
|
gptkbp:orbital_period
|
approximately 12 hours
|
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gptkbp:power_output
|
solar panels
|
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gptkbp:purpose
|
gptkb:hospital
|
|
gptkbp:status
|
retired
|
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gptkbp:successor
|
gptkb:Block_II_satellites
|
|
gptkbp:track
|
GPS tracking systems
|
|
gptkbp:type
|
Global Positioning System (GPS) satellite
|
|
gptkbp:weight
|
approximately 900 kg
|
|
gptkbp:wi_fi
|
24/7
|