Re: Garmin eTrex Satellite Page Questions

The important thing is that 51 is Canadian, and provides both the position
information (sometimes) that gives you the black bar, and I recall that it
offers correction data for more of the GPS satellites than the US WAAS
satellites do. That last bit might be a vague recollection. Take it with
as much weight as my seeing 51 in May of the wrong year.

So how many global navigational systems are currently functional (I'm referring to NAVSTAR, GLONASS, and eventually [maybe] GALILEO)? Do the Chinese have something similar? Anyone else? I'm assuming that #51 would be part of the NAVSTAR system... are certain NAVSTAR satellites controlled by countries other than the United States or is #51 a rogue navigational satellite launched by Quebec separatists ;-)?
.

Relevant Pages

  • Re: Garmin eTrex Satellite Page Questions
    ... WAAS satellites and EGNOS and MSTAT are technically augmentation satellites and are not part of the Navstar system. ... For information on augmentation of satellite signals read my article at: http://www.gpsinformation.org/dale/dgps.htm. ... Let me see if I have my fruit straight, at the time of the article's writing, there were 11 operational Wide Area Differential GPS satellites (so the major difference between the terms WAAS, EGNOS, and MTSAT is the country of origin?). ...
    (sci.geo.satellite-nav)
  • Re: Garmin eTrex Satellite Page Questions
    ... WAAS satellites and EGNOS and MSTAT are technically augmentation satellites and are not part of the Navstar system. ... For information on augmentation of satellite signals read my article at: http://www.gpsinformation.org/dale/dgps.htm. ... Let me see if I have my fruit straight, at the time of the article's writing, there were 11 operational Wide Area Differential GPS satellites (so the major difference between the terms WAAS, EGNOS, and MTSAT is the country of origin?). ...
    (sci.geo.satellite-nav)
  • Re: Garmin eTrex Satellite Page Questions
    ... offers correction data for more of the GPS satellites than the US WAAS ... So how many global navigational systems are currently functional (I'm referring to NAVSTAR, GLONASS, and eventually GALILEO)? ... They are mainly intended for airplane navigation and are expected to provide next generation navigation solutions for airline travel. ...
    (sci.geo.satellite-nav)
  • Re: WAAS in Australia, two questions
    ... of the Sydney Harbour, I get DGPS positions, i.e. WAAS corrections are ... being received and any number of the satellites received show a "D" in ... "Differential GPS involves the cooperation of two receivers, ...
    (sci.geo.satellite-nav)
  • Re: WAAS in Australia, two questions
    ... of the Sydney Harbour, I get DGPS positions, i.e. WAAS corrections are ... being received and any number of the satellites received show a "D" in ... "Differential GPS involves the cooperation of two receivers, ...
    (sci.geo.satellite-nav)