> The effect called irradiation limits the angular size > one can distinguish the silouete of an object against a bright > background. > In the case of the Sun this lower limit on the size is about 1 > arcsecond. > For Geostationary satellite ranges ( 40,000Km) this means about 200 > meters > or yards. So maybe just Milstar but not the ASTRA cluster. > For the lower NEO's at ranges of 1000KM the lower size limit is > 5meters. > So I think detail would show on the lacrosses , the Keyholes > and maybe HST. I also think that short exposures would be required > ( or tracking) to reduce image motion blur to acceptable limits. So, if ISS was passing across the disk of the Sun, I should definitely see it? BTW, is there any program out there that can compute passes for objects that cross the disk of the Sun? ------------------------------ Jonathan T. Wojack tlj18@juno.com 39.706d N 75.683d W http://www.geocities.com/tlj18_99/ 5 hours behind UT (-5) ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. ----------------------------------------------------------------- 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 Jan 25 2001 - 07:57:45 PST