In the LCROSS Observation newsgroup, Brian Day, the LCROSS Public Outreach officer, has posted the following refined impact coordinates. For amateur impact observing, these coordinates will not change significantly between now an the Oct. 9 impact that a change will effect telescope pointing: Centaur: S84.675, W47.725 (311.275E) 9 Oct 2009 11:31:30 UTC SSC: S84.729, W49.36 (310.64E) 9 Oct 2009 11:35:45 UTC Using Jim Mosher's LTVT software ( http://ltvt.wikispaces.com/LTVT ), I have plotted a best impact fit on an aerial view chart. Only the Centaur impact is shown. The shepherding satellite impact is so close that the position difference is not material for Earth observing. http://tinyurl.com/y8zy4ck Clear Skies - Kurt P.S. - Brian's communication reads in full: ------ MoonThumper Oct 2, 1:20 pm From: MoonThumper <brianh...@gmail.com> Date: Fri, 2 Oct 2009 12:20:00 -0700 (PDT) Subject: Correction to Coordinates and Times Final LCROSS Centaur and SSC target coordinates (Lat., Lon. in ME) Centaur: -84.675, 311.275 E SSC: -84.729, 310.64 E Elevations (Assumed Lunar radius: 1737.4 km): Centaur target elev: -3.82693 km SSC target elev: -3.80909 km Impact Times: Centaur: 9 Oct 2009 11:31:30 UTC SSC: 9 Oct 2009 11:35:45 UTC Note: These are nominal impact positions and times. Actual impact times based on TCM results may differ (see next slide for uncertainties) Original message: http://groups.google.com/group/lcross_observation/browse_thread/thread/2e901... ------