Datoteka:ConstellationGPS.gif

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ConstellationGPS.gif((240 × 192 piksela, veličina datoteke: 485 KB, MIME tip: image/gif), animacija se ponavlja, 300 okvira, 30 s)


Logo Wikimedijinog spremnika Ova je datoteka sa Zajedničkog poslužitelja i mogu je rabiti drugi projekti. Opis s njezine stranice s opisom datoteke prikazan je ispod.
Opis
English: A simulation of the original design of the GPS space segment, with 24 GPS satellites (4 satellites in each of 6 orbits), showing the evolution of the number of visible satellites from a fixed point (45°N) on earth (considering "visibility" as having direct line of sight).

The parameters used to simulate the orbits are: eccentricity (e) 0.05, inclination (i) 55° and a separation between orbits of 60° in the right ascension of the ascending node. Within each orbit, the four satellites are evenly spaced (the instant of pass through perihelion being arbitrary for the first satellite in each orbit). The orbital period of the satellites was taken to be 12 hours. The earth was considered a perfect sphere with a radius of 6400 km.

The time in the animation is running about 2880 times faster than real time (half a minute representing 24 hours), as clearly seen in the rotation of earth. The simulation was created using MATLAB and converted to animated gif format using Adobe ImageReady.
Deutsch: Eine Simulation von 24 GPS-Satelliten (4 auf jeder der 6 Umlaufbahnen), die die Anzahl der zu einer bestimmten Zeit nutzbaren Satelliten an einem fixen Punkt (45°N) zeigt.

Die Bahnen wurden mit folgenden Voraussetzungen simuliert: Exzentrizität (e) 0.05, Neigung (i) 55° und Trennung zwischen den Bahnen von 60° in der Rektaszension des aufsteigenden Knotens. Innerhalb der Bahnen sind die Satelliten gleichmäßig verteilt (die Position des ersten Satelliten wurde willkürlich gewählt). Die Satelliten umrunden den Planeten innerhalb von 12 Stunden. Der Planet ist eine ideale Sphäre mit einem Radius von 6400 km.

Der Zeitraffer beschleunigt die Animation ca. um das 2880-fache, was dazu führt, dass 24 Stunden in einer halben Minute vergehen (siehe Umdrehung des Planeten). Die Simulation wurde mit MATLAB erstellt und mit Adobe ImageReady ins GIF-Format übertragen.
Datum (original upload date)
Izvor Prebačeno s en.wikipedia na Zajednički poslužitelj .
Autor El pak na Wikipediji na engleskom jeziku
Matlab Logo.png
Ova je GIF grafika napravljena programom MATLAB.

Licencija

Public domain Ovo djelo je u javno vlasništvo izdao autor: El pak na Wikipediji na engleskom jeziku. To vrijedi za cijeli svijet.
U nekim državama to nije pravno moguće; ako je tako:
El pak daje svima prava da koriste ovo djelo za bilo koju svrhu, bez ikakvih uvjeta, osim ako takvi uvjeti nisu propisani zakonom.

Izvorna evidencija postavljanja

Izvorna stranica s opisom bila je ovdje. Niže navedena suradnička imena odnose se na en.wikipedia.
  • 2007-12-09 17:51 El pak 240×192×8 (497149 bytes) A simulation of the original design of the GPS space segment, with 24 GPS satellites (4 satellites in each of 6 orbits), showing the evolution of the number of visible satellites from a fixed point (45ºN) on earth (considering "visibility" as having dire
  • 2007-12-07 01:41 El pak 316×272×10 (1186667 bytes) A simulation of the 24 GPS satellites (4 satellites in each of 6 orbits), including the evolution of the number of visible satellites from a fixed point (45ºN) on earth (considering "visibility" as having direct line of sight)

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sadašnja16:56, 6. ožujka 2008.Minijatura za inačicu od 16:56, 6. ožujka 2008.240 × 192 (485 KB)Shushruth{{Information |Description={{en|A simulation of the original design of the GPS space segment, with 24 GPS satellites (4 satellites in each of 6 orbits), showing the evolution of the number of visible satellites from a fixed point (45ºN) on earth (conside

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