With the narrow, inclined cone the second event is 07:33 RA, +7.3 dec at 04:26 UTC for 52.8N, 5.1E +0:04 RA, +0:07 time /10 deg E -0:42 RA, -0:41 time /10 deg S With the "90 deg cone" 06:26 RA, +7.5 dec at 03:19 +0:00 RA, +0:05 time /10 deg E -0:44 RA, -0:42 time /10 deg S These estimates show that observations of two (rarely more) events, and from different latitudes, improve the determination of the axis and cone angle. Observations from different longitudes, or from one place over several weeks, have a good effect unless the orbit is nearly equatorial, or flashes occur near apex, or the Sun is near a solstice. /Björn > >The effect on THIS first flash episode would be >+0:06 RA, +0:10 time /10 deg E >+0:31 RA, +0:35 time /10 deg S > >However, I checked the possibility that either Jan or Nov observations >where flashes from the backside of same panel(s). This improved the fit, >drove the axis closer to the pole, and made the surface cone angle 88 >degrees instead of 68 - both of which are more frequent. > >The first event would be RA 01:49 (dec.-3.6) at 22:41 UTC >(for 52.8N, 5.1E) >-0:07 RA, -0:04 time /10 deg E >-0:40 RA, -0:42 time /10 deg S > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Wed Nov 09 2005 - 16:45:52 EST