truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

A GPS satellite

source:truck tracking webfleet solutions release time:2022-10-12 Hits:     Popular:realtime gps tracker online

  

  The GPS satellite is developed by the Space Division of Rockfield International Corporation. It weighs 774kg and has a service life of seven years. The satellite is honeycomb structure, the main body is cylindrical, diameter is 1.5m. The satellite is equipped with two double-bladed solar directional panels (BLOCK I) on both sides, which are 5.33 meters long and can receive sunlight with an area of 7.2m2. The sun orientation system controls the rotation of the battery panels on both wings, so that the panel surface is always aligned with the sun, provides constant power for the satellite, and charges three sets of 15Ah nickel-cadmium batteries to ensure that the satellite can work normally in the shadow of the earth. A multi-beam directional antenna with 12 elements at the bottom of the star can transmit two L-band (19cm and 24cm waves) signals with an Angle of about 30 degrees. Omnidirectional telemetry remote control antennas are installed on the two sides 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 in order to maintain the satellite at an appropriate altitude and Angle and accurately target the visible surface of the satellite.

  According to the working principle of GPS system, the higher the accuracy of the satellite-borne clock, the higher the positioning accuracy. Early test satellites used quartz oscillators developed at Hopkins University with a relative frequency stability of 10? 11 / SEC. The error is 14 meters. After 1974, GPS satellites used rubidium atomic clocks with a relative frequency stability of 10? 12/ SEC, error 8m. In 1977, the cesium atomic clock developed by Mas Frequency and Time Systems was used in the BOKCK II, and the relatively stable frequency reached 10? 13/ s, the error is reduced to 2.9m. In 1981, Hughes developed a relatively stable frequency of 10? The 14/ s hydrogen clock puts the BLOCK IIR satellite off by just 1m.


Read recommendations:

fleet gps trackers Vendor

Dog gps tracker

TK08A Motorcycle GPS Tracker

What is GPS dual -frequency positioning technology?obd-II port gps tracker Manufacturing

How to determine whether the car is equipped with a GPS positioner?trailer gps tracker Manufacturing

Last article:The conversion method of GPS coordinates in unit degrees and seconds

Next article:GPS Plan implementation plan

Related Information

Best hidden gps trackers

2023-04-11

Pet GPS Tracker price

2023-04-11

pet gps tracker cat

2023-04-11

GPS Rastreader

2023-03-16

GPS Tracker wholesaler

2023-04-11

plug & play Obd gps tracker

2023-04-23

pet gps tracker cat

2023-03-16

4G GPS Tracker wholesaler

2023-04-23

4G GPS Tracker price

2023-04-23

obd2 gps tracker verizon wholesaler

2023-04-23

TK100 (GT06) Vehicle Tracker

2022-06-20

4G Wired GPS Tracker PCBA

2022-06-17

GF20-Mini Magnet GPS Tracker

2022-06-21

3 Years Disposable Asset GPS Tracker

2025-03-31

6000mAh Magnetic Asset GPS Tracker

2025-03-31

Beidou Navigation GPS

2022-09-27

GPS application

2022-07-25

The market for electric vehicle GPS positioner is huge.realtime gps tracker online Manufacturing

2023-03-09

China Beidou Satellite Navigation System.obd11 gps tracker verizon manufacture

2023-03-11

Did you know that there is no risk of tracking a vehicle with a GPS locator?

2022-07-14

GPS satellite positioning is an inevitable trend

2023-02-23

Several Important Factors of Vehicle GPS Satellite navigation.personal gps tracker supplier

2023-06-16

GPS navigation solution

2022-12-10

Disadvantages of Bluetooth GPS receiver.fleet tracking mobile app

2022-11-16

What is the development of the car GPS positioner market development

2023-03-07

Troubleshooting the cause of vehicle GPS locator offline and intermittent data.4G GPS Tracker

2023-09-21

Current Development of GPS.GPS Tracking

2023-09-08

What to do if the car GPS locator shows that it is not online.Magnetic gps tracker company after ins

2023-09-16

Car GPS locator.gps tracker with magnet sales

2023-06-20

Logistics GPS positioning application scheme

2022-10-09