It is easy to find where to look. Find the Sun's RA and Dec. Add 12h to RA, reverse the sign of Dec. Then subtract your latitude/7 (add if S). A fifteen degree ring around that spot is the best. Actually it moves about 2 degrees/hour sideways during the night. A better image is provided with SkyMap. Use the F7/Equatorial view and an elset file like GEO.tle from Mike or OIG, or Alan's SATBASE with F7/F9/F7 set to 30000,40000. Set Duration to 2:00. F7/L/F5 must be at least 14. You can use F4/F2/Sun to point to the Sun, then add 12h or 180 deg depending on Map view, adjust Dec or altitude as above. You will see a "black hole". I suppose the majority of flashers will be the ones will be the still actively stabilized, and pass near the centerline on the optimum dates, then moving to the northern limb during the following week. I have a sample on http://www.algonet.se/~b_gimle/gif/geoflare.jpg (for lat. -39 Sep.15 22:00-24:00 UTC+9.5) and can generate a few specific for your lat and desired date, if you have problems with SkyMap. -- b_gimle@algonet.se (home) http://www.algonet.se/~b_gimle -- -- 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
This archive was generated by hypermail 2b29 : Wed Sep 13 2000 - 23:06:07 PDT
