Hi Bill.

I simulated occaltation by Pluto on 18 in Mar.
I heard peoples in North America observed this event.

I displayed pluto with CMC-14 star. Guide display occultation
event with CMC-14 star, not with 2UCAC star.

I found Pluto has 2 new satellites.
The one is S/2005 P1, another one is S/2005 P2.
But Guide display them both as "u21".

Bill, what does this "u21" means ?

Masaki Kouda