hello all, I am hoping to demonstrate a high, bright pass of the ISS to an audience at the planetarium of madrid, spain, on or around the evening of the 13th of february (weather permitting, of course). I have been watching predictions for the pass of that evening since the beginning of this month. on 1 jan HA predicted the maximum elevation of the pass to have been 75 degrees, occurring at 19:48:43 local time. later, on 18 jan, HA gave a prediction showing a drop to a maximum elevation of only 67 degrees, occurring four minutes earlier at 19:44:39 local time. today, 21 jan, HA shows 63 degrees at 19:42:30. I know the main reason for these adjustments, this decline, is the drag on the spacecraft and a steady drop in altitude. my question is, will it be possible to give an accurate time and maximum elevation now for the pass which will occur for el planetario de madrid ( 40.3911°N, 3.6839°W) on the 13th of february? I originally chose that date because the pass was a high, bright one, but I don't want to have a crowd of people gathered outside to watch the station go by just near the horizon. it seems that if this rate of decline continues steadily until the 13th, it won't be above even 40 degrees at maximum elevation? should I instead plan for one of the other days close to the 13th, which might provide a better viewing opportunity? in any case, with my luck, it will likely be overcast at the time of the pass, anyway, but one can always hope. any assistance with this question will be greatly appreciated. clear skies! stephan szyman chicago IL USA 41.6840N, 87.7000W; 188 msl _________________________________________________________________ FREE online classifieds from Windows Live Expo – buy and sell with people you know http://clk.atdmt.com/MSN/go/msnnkwex0010000001msn/direct/01/?href=http://expo.live.com?s_cid=Hotmail_tagline_12/06 ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sun Jan 21 2007 - 12:46:09 EST