I made two small but very significant errors in my model - I should have used Satellite-Observer for determining position of normals, and Observer-Satellite for predictions, but did it the opposite way. Strangely, there were predictions matching "all" observations. I was confused though, because the surface causing the prediction for Tony's flashes was not the same surface that matched the observation in the spin calculation. I added angle tests (Axis-Normal, Normal-Sun and Normal-Observer), and they were OK, because all other computations were correct (?). It was only matching a drawing to the computed values that the sign errors became apparent. The solution is very neat, the axis is 8h 00m, +89.85 degrees, and cone angles 102.5, 99.2, 114.9 Degrees for surface a, b, c (10, 15, 1 obs) - the c obs is from Tony's 'neighbour', unless I have an error in reducing the observation. (There are also two stray points from Oct.09 at 91 and 88 degrees, but they could be explained by precession) The model, and deepsky.txt, have been updated at my web site. -- bjorn.gimle@tietotech.se (office) -- -- b_gimle@algonet.se (home) http://www.algonet.se/~b_gimle -- -- COSPAR 5919, MALMA, 59.2615 N, 18.6206 E, 33 m -- -- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m -- -- SeeSat-L / Visual Satellite Observer Home Page found at -- -- http://www2.satellite.eu.org/satintro.html -- ----------------------------------------------------------------- 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
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