Hi all, > >I tried using Heavens-Above to show the Mir pass for Sydney that Rob > >Matson mentioned, without any luck. My own predictions match Rob's, > >so I wonder why Heavens-Above isn't showing it? The sun would be about > >14 degrees below the local horizon for that pass, so it wouldn't be > >filtered out because the sky was too bright. > It certainly was giving it yesterday Craig. Something about the elset > must filter it out. > tony beresford It seems I must eat humble pie! I have tracked down the missing pass, and discovered that it was caused by too large a time step in the Heavens-Above prediction software. I deliberately set this as high as possible to reduce the processing load on the servers, but this particular pass of Mir over Sydney just managed to start and finish during a time step and was missed. For most satellites the step size was OK, but because Mir is now so low it crosses the sky very quickly. I have fixed the problem so this shouldn't happen again. You can see the pass now on Heavens-Above as proof. My apologies to those people who might have missed their last chance to see Mir. Chris ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Thu Mar 22 2001 - 03:23:25 PST