I don't have an answer to your question of ground plot, just like to point out that SkyMap (Rob's) can search for appulses to stars on the AllSats/Transit menu. You can set a distance up to 5 degrees, and a search of 999 hours. Using the iridiums.tle file, you will get transits from non-flaring planes also, but you can edit a special file with only those that have RAAN similar to the flaring ones. Use the cursor to read the altitude (and/or azimuth) error of prediction. If the track is not nearly vertical, you can use the output from IridFlar in 3-point mode with a small max.angle to make predictions along the centerline, otherwise pick points to the E or W. With two points predicted, you see the effect on alt (or az) distance from the star, and can compute the proper travel distance. Then run a check! ----- Original Message ----- > time for something more difficult! There's a series of flares in Ursa > Major near (or between) Alcor and Mizar observed in central Russia these > days. Two stars are 12 arcminutes (0.2 degree) apart, so the pass can > only be visible from a very narrow band on Earth. Rough calculations > show it should be a few (appr. two or three) kilometers wide (780km/57/5 ,,, > > The question is: can anybody plot the path of visibility of this rare > events or generate the table with the longitudes and latitudes of > southern and northern limits? Is there a software for predicting > visibility maps of Lunar transits also available? > ----------------------------------------------------------------- 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/sat/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Thu May 30 2002 - 10:30:05 EDT