Oscar A. Rodriguez wrote: > I'm very interested in watching fuel/water dumps, but I don't > know the maximum magnitud they can reach. Are they naked-eye visible? Water dumps are visible to the unaided eye; here is some information and photos: http://www.satobs.org/h2o_dump.html Fuel dumps and even orbit manoeuvre burns have also been observed with the unaided eye. Here are some reports I found by searching SeeSat-L's archive: Tony Beresford observed the Centaur propellant dump of the Titan 4 that launched Cassini on 1997 Oct 15 UTC: http://satobs.org/seesat/Oct-1997/0246.html http://satobs.org/seesat/Feb-1998/0200.html Ed Cannon and Mike McCants observed the Centaur fuel dump of the Titan 4 launch of 1997 Nov 8 UTC: http://satobs.org/seesat/Nov-1997/0141.html Ed Light observed the fuel depletion burn and subsequent venting of the Delta 2 launch of 1998 Apr 28 UTC: http://satobs.org/seesat/Apr-1998/0231.html http://satobs.org/seesat/Apr-1998/0234.html Ron Lee observed the fuel depletion burn and subsequent venting of the Delta 2 launch of 1999 Jul 10 UTC: http://satobs.org/seesat/Jul-1999/0124.html Ron Lee observed the fuel depletion burn and subsequent venting of the Delta 2 launch of 1999 Jul 25 UTC: http://satobs.org/seesat/Jul-1999/0424.html Dan Deak observed the fuel depletion burn and subsequent venting of the Delta 2 launch of 2000 Feb 8 UTC: http://satobs.org/seesat/Feb-2000/0171.html The Centaur fuel dump of the Titan 4 launch of 2002 Jan 16 UTC resulted in several detailed observation reports, and a video: http://satobs.org/seesat/Jan-2002/0160.html http://satobs.org/seesat/Jan-2002/0161.html http://satobs.org/seesat/Jan-2002/0164.html http://satobs.org/seesat/Jan-2002/0166.html http://satobs.org/seesat/Jan-2002/0174.html The fuel dump of the Ariane 4 that launched Spot 5 was observed from North America; we received several detailed reports: http://satobs.org/seesat/May-2002/0022.html http://satobs.org/seesat/May-2002/0023.html http://satobs.org/seesat/May-2002/0026.html http://satobs.org/seesat/May-2002/0027.html The Centaur of the Atlas 2AS launch of 2004 Aug 31 UTC put on a spectacular show, several thousand kilometres over eastern North America, as reported by several SeeSat-L subscribers: http://satobs.org/seesat/Aug-2004/0335.html http://satobs.org/seesat/Aug-2004/0337.html http://satobs.org/seesat/Aug-2004/0339.html http://satobs.org/seesat/Aug-2004/0341.html http://satobs.org/seesat/Aug-2004/0342.html The final Centaur burn of the Atlas 3B launch of 2005 Feb 03 UTC was observed to reach at least mag 2, by Robert Holdsworth: http://satobs.org/seesat/Feb-2005/0022.html A short time later, Dan Deak had a spectacular view of the Centaur's propellant dump. He provided a detailed report, followed by a message with links to excellent drawings: http://satobs.org/seesat/Feb-2005/0027.html http://satobs.org/seesat/Feb-2005/0068.html Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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