truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

gps satellite constellation.gps vehicle tracker

source:truck tracking webfleet solutions release time:2023-09-04 Hits:     Popular:realtime gps tracker online

  

  A GPS satellite constellation consisting of 21 working satellites and 3 in orbit backup satellites is referred to as the (21+3) GPS constellation. 24 satellites are evenly distributed within 6 orbital planes, with an inclination angle of 55 degrees. The distance between each orbital plane is 60 degrees, which means that the right ascension of the ascending node of the orbit is 60 degrees apart. The difference in elevation angle between satellites in each orbital plane is 90 degrees. A satellite in the orbital plane is 30 degrees ahead of the corresponding satellite in the adjacent orbital plane to the west.

  GPS satellites at an altitude of 20000 kilometers orbit the Earth twice when the Earth rotates around a star, and the time it takes to orbit the Earth once is 12 star hours. This way, ground observers will see the same GPS satellite 4 minutes in advance every day. The number of satellites located above the horizon varies with time and location, with a minimum of 4 visible and a maximum of 11 visible. When using GPS signal navigation and positioning, in order to calculate the three-dimensional coordinates of the station, four GPS satellites must be observed, which are called positioning constellations. The geometric position distribution of these four satellites during the observation process has a certain impact on the positioning accuracy. The time period during which precise point coordinates cannot even be measured at a certain location or time is called a "gap period". But this time gap is very short and does not affect the all-weather, high-precision, and continuous real-time navigation and positioning measurements in the vast majority of parts of the world. The number of GPS working satellites is basically the same as the test satellite.


Read recommendations:

cantrack g05

4G GPS Tracker for vehicles wholesaler

Mini Sized GPS Tracker PCBA

Characteristics of GPS RTKLIB.fleet gps trackers wholesaler

GPS automatic navigation.obd2 gps tracker verizon distributors

Last article:GPS signal receiver.car gps tracker

Next article:GPS predecessor.4G GPS Tracker

Related Information

4G GPS Tracker for vehicles maker

2023-04-23

gps tracker no monthly fee supplier

2023-03-16

GPS Tracking Factory

2023-04-11

fleet gps tracking sales

2023-04-23

fleet solution webfleet solutions

2023-03-16

Cantrack TK100

2023-03-16

real-time gps tracking

2023-03-16

gps tracker for kids

2023-04-11

4G GPS Tracker for vehicles Processing

2023-04-23

gps vehicle tracker Vendor

2023-04-11

G183 serials -JOBD GPS Tracker

2022-09-06

G500M-Mini GPS Tracker

2022-06-20

P901 4G ID Card GPS Tracker Smart Walkie-talkie

2025-07-11

TK103B

2022-06-20

TK100B- Accurate Pro version GT06/TK100

2023-10-06

GPS evaluation standard

2022-10-22

GPS satellite positioning

2023-02-15

GPS Knowledge Base: What is RTK Technology

2022-08-18

What is the GPS

2022-10-13

How to judge the quality of a car GPS locator?vehicle gps tracker webfleet solutions

2023-03-21

GPS area measuring instrument.trailer gps tracker supplier

2023-07-19

GPS test set

2022-11-09

Introduction to GPS system functions

2022-11-11

GPS coordinate

2022-11-23

gps vehicle tracker.How to Install the Beidou GPS Satellite Positioning and Monitoring System in Car

2023-11-02

GPS monitoring system develops rapidly

2023-02-08

Twelve problems commonly used in car GPS positioner.gps tracker für auto webfleet solutions

2023-03-09

The difference between mobile GPS positioning and car GPS positioning.gps tracker online wholesaler

2023-06-20

GPS navigation phone.portable gps tracker Solution

2023-06-07

Factors affecting GPS positioning accuracy.gps tracker for trailer Production

2023-05-18