Just an FYI. GPS may be unreliable in certain parts of the world for short periods on September 11 as a result of a routine Delta-V maneuver with satellite #52 (PRN-31).
The Navigation Information Service of the U.S. Coast Guard Navigation Center issued a High Horizontal Dilution of Precision (HDOP) Advisory, reporting that GPS users may experience a temporary degradation in GPS reception in parts of the southwest and central United States from 13:02 UTC to 13:23 UTC on September 11.
The following areas in the United States may be affected:
Southern Nebraska
Kansas
Oklahoma
Southwestern Arkansas
Eastern Texas
Western Louisiana
Note of much concern to TomTom users of highway PND's, but thought I'd mention it in case anyone notices a lower accuracy figure or unusual vehicle icon placement at intersections or when parallel roads are in close proximity.
The Navigation Information Service of the U.S. Coast Guard Navigation Center issued a High Horizontal Dilution of Precision (HDOP) Advisory, reporting that GPS users may experience a temporary degradation in GPS reception in parts of the southwest and central United States from 13:02 UTC to 13:23 UTC on September 11.
The following areas in the United States may be affected:
Southern Nebraska
Kansas
Oklahoma
Southwestern Arkansas
Eastern Texas
Western Louisiana
Note of much concern to TomTom users of highway PND's, but thought I'd mention it in case anyone notices a lower accuracy figure or unusual vehicle icon placement at intersections or when parallel roads are in close proximity.
