Yes, with CdC 2.76 something seems to be amiss and it does look as though it is truncating the epoch date. CdC V3 came back with using the latest MPCORB file: (136199)Eris 2006-12-23 08h52m23s Magnitude: 18.8 Phase: 1 ° Distance: 96.5311au Solar Distance: 96.8403au ref: MPO103029/2007-04-10 Coordinates: J2000 RA: 01h35m52.51s DE:-05°23'38.5" Date RA: 01h36m13.60s DE:-05°21'30.8" Ecliptic L: +20°14'23" B:-14°18'26" Galactic L: +150°51'55" B:-65°49'34"
Which looks to be correct. Bob --- In [email protected], "quick_photon" <[EMAIL PROTECTED]> wrote: > > Yesterday, I wanted to take picture of the > small planet Eris > > When selecting Eris from the astorb file, > the following position will be displayed > > Cartes du Ciel 2006-12-23 1h00m MEZ 3h04m15.11s +35°04'45.3" 17.6 > > But instead > Nasa Horizons 2006-Dec-22 00:00 UT 01 35 53.93 -05 23 47.8 18.78 > > WinOccult 2006 12 22 00:00 UT 1 35.85 - 5 24.2 18.7 > (same Astorb.dat) > > The Astorb data are epoch Dec 31 2006, but Skychart displays epoch > 2006123 !!! > > The other elements for Eris seem to be ok (only small differences) > Is there an epoch problem with the end of the year ? > > Can anybody confirm my calculations ? > > When using the menu => file => asteroid => > Cartes du Ciel complains, that the astorb file is more than one year > old ??? > I downloaded my astorb.dat Dec, 13 2006 from > ftp://ftp.lowell.edu/pub/elgb/astorb.html > with the line > > 136199 Eris E. Bowell -1.2 > 0.15 0 0 0 0 0 0 19036 193 20061231 > 197.865227 151.535700 35.879070 44.169423 0.44046421 67.71301350 > 20061024 8.6E-02 3.6E-04 20061213 9.2E-02 20070113 2.0E-01 20160725 > 2.0E-01 20160807 > (without linefeeds) > > Thanks a lot and merry christmas > > Erik >
