source:truck tracking webfleet solutions release time:2023-09-04 Hits: Popular:realtime gps tracker online
The GPS satellite was developed by the Space Department of Rockefeller International, with a weight of 774kg and a lifespan of 7 years. The satellite adopts a honeycomb structure, with a cylindrical main body and a diameter of 1.5m. The satellite is equipped with two dual leaf solar panels (BLOCK I) on both sides, with a total length of 5.33 meters and a sunlight receiving area of 7.2m2. The solar orientation system controls the rotation of the two wing battery panels to keep the panels aligned with the sun, continuously providing power to the satellite, and charging three sets of 15Ah cadmium nickel batteries to ensure that the satellite can operate normally in the shadow of the Earth. A multi beam directional antenna with 12 units is installed at the bottom of the star, which can transmit signals in two L-bands (19cm and 24cm waves) with an angle of approximately 30 degrees. Omnidirectional telemetry and remote control antennas are installed on both ends of the star for communication with the ground monitoring network. In addition, the satellite is equipped with an attitude control system and an orbit control system to maintain the satellite at an appropriate altitude and angle, accurately aligning with the visible ground of the satellite.
According to the working principle of the GPS system, the higher the accuracy of the onboard clock, the higher its positioning accuracy. Early experimental satellites used a quartz oscillator developed by Hopkins University, with a relative frequency stability of 10? 11/second. The error is 14 meters. After 1974, GPS satellites adopted rubidium atomic clocks with a relative frequency stability of 10? 12/s, error of 8m. In 1977, the BOKCK II model adopted a cesium atomic clock developed by Mars Frequency and Time Systems, and its relatively stable frequency reached 10? 13/second, the error is reduced to 2.9m. In 1981, Hughes developed a relatively stable frequency of 10? The 14/second hydrogen atomic clock results in an error of only 1m for the BLOCK IIR satellite.
Read recommendations:
Car gps tracking Manufacturing
TK200AM-Disposable GPS Tracker
GPS precautions.portable gps tracker supplier
How to find the GPS locator on the car?obd2 gps tracker verizon supplier
Last article:Principles of GPS System.Cantrack TK100
Next article:GPS reset did not have a substantial impact on car GPS locators
Related Information
car gps tracker distributors
2023-04-23fleet gps trackers
2023-04-11Magnetic gps tracker supplier
2023-04-234G GPS Tracker sales
2023-04-23gps vehicle tracker manufacturer
2023-04-11pet gps tracker cat sales
2023-03-16car gps tracker price
2023-04-23pet gps tracker cat custom
2023-03-16gps tracker online wholesale
2023-04-23fleet gps trackers maker
2023-04-23G02M Pet Tracker
2022-06-19G09L -6 inch Tail light tracker
2022-06-20TK100B- Accurate Pro version GT06/TK100
2023-10-06NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21G183 serials -JOBD GPS Tracker
2022-09-06The rapid development of GPS monitoring system
2022-08-26Introduce the different types of GPS positioner
2023-02-25What are the key points for purchasing in car GPS.personal gps tracker Solution
2023-06-16Beidou Navigation GPS
2022-09-27GPS control center
2022-12-09How to effectively control the risk of car loan companies?
2023-02-16GPS navigation phone.portable gps tracker Solution
2023-06-07The editor tells everyone where car GPS is usually installed.obd-II port gps tracker sales
2023-06-16Compared to the advantages of GPS car navigation and mobile phone navigation.GPS Tracker for vehicle
2023-05-09Issues that need attention during the purchase of GPS vehicle terminals.plug & play Obd gps trac
2023-03-28Logistics GPS positioning application scheme
2022-10-09GPS system management
2022-10-08Modernization of GPS.OBD GPS Tracker manufacture
2023-09-08GPS personal positioning
2022-12-15GPS area measuring instrument.trailer gps tracker supplier
2023-07-19