He was right and wrong.... ISS was doing that a few days ago, on June 5. He either had his date wrong or old elements. June 5 was the end of a 4 or 5 day period where ISS was illuminated continuously and visible on every pass all night. At the beginning and end of that period there were a few orbits where ISS would go into shadow for just a couple minutes then back to sunlight. Try running it around 4UT on June 5 and see what SatSpy shows. I use Nova for Windows and I find it is pretty accurate regarding shadow immersion times. Every program is a little different regarding where they draw the terminator, spacecraft horizon, whether they use center vs limb of Sun, etc. Dale > -----Original Message----- > From: Mike Waterman [mailto:Mike.Waterman@marconi.com] > Sent: Monday, June 11, 2001 2:11 AM > To: Seesat Exploder (E-mail) > Subject: Re: ISS eclipsed ? > > > Satellites can certainly go into eclipse and emerge a few minutes > later still above the horizon. I have seen this on a few occasions. > > If the duration is only 2 minutes then the eclipse would be slight, > and the brightness would dim by perhaps 1 magnitude. > > In the case quoted (ISS eclipse entry Jun 11 2215) it will not exit > until 2250 over the southern Indian Ocean, so there must be a problem > with Alphonse Pouplier's predictions. > > Mike Waterman mike.waterman@marconi.com > > ----------------------------------------------------------------- > 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 > > > ----------------------------------------------------------------- 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 : Mon Jun 11 2001 - 07:03:45 PDT