I discovered that for some reason, I don't know why, the Tycho 2
star 5244-0017 is not in the Tycho 2 catalog supplied with Occult.
It is in Guide8 so I used the Guide8 position of it and added it to
Occult. I then recomputed the occultation using Occult and the
reported times and occultation path are similar to, but not exactly
the same as, those shown by Guide8. Both Guide8 and Occult show
paths for this event that are well to the north and west of the path
shown in the March, 2004 Sky & Telescope.

--- In guide-user@yahoogroups.com, "toadatrix" <jsnyder@w...> wrote:
> According to the March, 2004 issue of Sky & Telescope (page 103,
> 106) the asteroid 107 Camilla will occultate the 11.8 magnitude
star
> TYC 5244 0017 on Sept. 5, 2004 at around 9h UT. The map shown on
> page 103 shows the central path passing over the southern part of
> Wisconsin where I live. I calculated the same event in Guide 8b
and
> found the central path missing southern Wisconsin all together and
> passing, instead, over the north west corner of Wisconsin.
>
> Since Guide has always been dead on accurate for me I have to ask
> what accounts for the difference and which prediction (if any) may
> be correct? I should mention that I also tried to find this event
> with the latest version of Occult and I couldn't find it at all
> (that was really surprising). Is there a way to get the latest
> information into Guide so as to get the most accurate
predictions?
> Where would I go on the web to get that latest information?
Thanks.