Next message: Chuck Taylor: "Re: Averaging"
On Oct 20, 2004, at 7:09 PM, Bill wrote:
> My question, is there a rule of thumb that might indicate when
> averages are
> acceptable and when not. For example, for error of .4' or less (due
> totally to systematic errors from averaging) difference between
> latitude and
> declination, plus altitude should exceed 60d (or any other number that
> the
> gurus decide is reasonable?
>
Bill,
I'm no guru, let me assure you, but as best as I can tell, as long as
you're 10 minutes away from meridian passage, averages or a straight
line are fine, regardless of declination and latitude. This is for
short periods, such as 5 minutes.
Fred
