Beautiful site tonight of subject objects. Both were brightest objects in Northern sky for several seconds and faded out to near invisible at zenith. I could not find them with 7X50's as they crossed close to zenith. What is making the "glint"/"baby flare" :) ? Could the moon be a factor? ----- Original Message ----- From: "Matson, Robert" <ROBERT.D.MATSON@saic.com> To: "'Tony Beresford'" <aberesford@iprimus.com.au>; <seesat-l@satobs.org> Sent: Thursday, April 25, 2002 7:19 PM Subject: RE: GRACE Satellites > Hi All, > > Tony wrote: > > > You cant get a sunglint off a nadir pointing surface in LEO, > > except within a few degrees of the local horizon. This was > > discussed on this list a few years ago. > > Quite so. Looking at the dozens of images of the GRACE pair, > I don't see any way to get a glint off the spacecraft unless > it is improperly oriented. Check the image gallery: > > <http://www.csr.utexas.edu/grace/gallery/other/IABG/> > > The trapezoidal ends were the only hope, and unfortunately their > normals are perpendicular to nadir, which means glints could > only occur during daytime. > > --Rob > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www.satellite.eu.org/seesat/seesatindex.html >
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