So, I checked out the GPS fix (##477#) hash page. So, has anyone figured out what all of the numbers are? Sounds like a dumb question... here's what I mean...

For Latitude, there are 2 numbers. The first looks correct... The second, on the next row, means nothing to me. I suppose it might just be badly-formatted text, a continuation of the number. For Longitude, it's a dash, and on the next row a number that is the correct longitude. Is the dash a placeholder for something it can't discover? Velocity is 2 numbers... 593 on the first row, 0 on the next. What are those? Altitude is a single number. It appears to be yards or meters. Anyone know which? Heading is a single number, apparently from 0 to 360, so I guess 0 is north, 90 is east, etc. For horizontal accuracy, there are 2 numbers. 56.5685... on the first row and 875 on the second. What are these numbers? Also, what are the units for vertical accuracy?

Many thanks in advance.