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September 17, 2003
EGNOS/WAAS update
Garmin Geocachers in Northern Europe may be cursing the loss of WAAS accuracy recently ... here's why ...
The ESA have this schedule up on their site with info that the AOR-E satellite (PRN 120 or Garmin satellite id 33) will not be broadcasting ESTB between 8th and 24th September. The IOR satellite (PRN 131 or Garmin satellite id 44) will still be transmitting ESTB, but here in Denmark we don't get much of a lock on it. Your mileage may vary.
That's the bad news. The good news is that on 24th September, AOR-E comes back online with WAAS (actually, the real EGNOS SIS).
Here's some info on the WAAS/EGNOS satellites.
And what are RIMS? They're Ranging and Integrity Monitoring Stations, a crucial part of satellite based augmentation systems. Read all abaout them here (warning : 190Kb PDF) and here's a (partly incomplete?) description of the CPF or Central Processing Facility (warning : 470Kb PDF).
Posted by daen at September 17, 2003 12:36 AM