zmapj36@sund.cc.ic.ac.uk (M.S.Bennett Supvs= Prof Pendry) (06/29/90)
Giotto will have its closest approach at 9:59.50 GMT 2 July 1990. Closest aproach to Earth surface will be in the Indian Ocean close to the Southern tip of Austrailia at a distance of 22680 km. Giotto will just be visible to the Amature (if they are in OZ else forget it) Magnitude : Most Probable 10-12 th : Optimistic 8 th Professional Observers should have details of orbital elements & ground track. The main difficulty will be in working out the star coords. to look at- You would need to perform a Topocentric analasys. If still intrested (and BT willing) I will have the Hyperbolic Orbital Elements by Friday. Mail me >>>> Cc: Bcc: /------ ------- -----\ /------ | ====================== | | | | \ | | M. Sean Bennett | \-----\ |---- | | \-----\ | UKSEDS TECH.OFF. | | | | / | | Janet:SEDS@CC.IC.AC.UK | ------/ ------- -----/ ------/ | Bitnet- | | SEDS%CC.IC.AC.UK@ukacrl | | ====================== |