At 22:08 19/12/98 +1100, Bryan & Jane Carney wrote: >Dear See-Satters, ... >- Is HST know to flare ? Yes it is Brian, though my personal experience is that this is most likely in the evening low in the NE close to shadow entry.Since I have not followed HST much in last couple of years, others may have observations to contribute. >- Could a prediction program be in the offing (a' la Iridium style :) ? Not really, as the orientation of HST depends on what object it is pointing at in the course of its observing programme. This is of course known to the HST operations people a day ot two in advance, and possibly to others via the status information, but not a week in advance to anybody , so nobody is going to write such a programme. Tony Beresford Adelaide, SA (-34.97, 138.6333)