The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 07TB418 # Created Fri May 2 02:36:59 2008 # Orbit generated from Bernstein formalism # Fitting 8 observations of 8 # Arc: 57.90d # First observation: 2007/10/04 # Last observation: 2007/12/01 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.015813 0.000002 0.000138 0.017501 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 5.54 DOF: 11 RMS: 0.15 # Min/Max residuals: -0.22 0.40 # Exact a, adot, b, bdot, g, gdot: 1.182923E-05 1.256503E-02 -4.022072E-07 2.795264E-04 1.698707E-02 -1.063708E-02 # Covariance matrix: 1.5585E-12 7.2639E-11 5.4355E-14 -3.5683E-12 1.3755E-11 -4.2143E-10 7.2639E-11 4.4332E-08 3.2083E-11 -1.9446E-09 6.5473E-09 -5.9479E-07 5.4355E-14 3.2083E-11 1.3167E-12 -1.2008E-11 4.6698E-12 -4.7004E-10 -3.5683E-12 -1.9446E-09 -1.2008E-11 1.8677E-10 -2.8665E-10 2.6733E-08 1.3755E-11 6.5473E-09 4.6698E-12 -2.8665E-10 9.8808E-10 -7.8841E-08 -4.2143E-10 -5.9479E-07 -4.7004E-10 2.6733E-08 -7.8841E-08 1.2475E-05 # lat0 lon0 xBary yBary zBary JD0 -6.512555 16.501234 0.100084 -0.112978 -0.990657 2454377.721394 # Heliocentric elements and errors Epoch: 2454370.5000 = 2007/09/27 Mean Anomaly: 339.09284 +/- 22.497 Argument of Peri: 26.09342 +/- 6.366 Long of Asc Node: 94.26818 +/- 0.545 Inclination: 6.54965 +/- 0.013 Eccentricity: 0.72103057 +/- 0.2274 Semi-Major Axis: 102.86875398 +/- 72.3996 Time of Perihelion: 2476502.2692 +/- 4606.4 Perihelion: 28.69723746 +/- 30.9027 Aphelion: 177.04027050 +/- 126.7782 Period (y) 1043.3582 +/- 1101.48 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 57.06303666 +/- 0.1038 Ecliptic Y 16.79587155 +/- 0.0307 Ecliptic Z -6.67695507 +/- 0.0124 Ecliptic XDOT -0.00219721 +/- 0.0005 Ecliptic YDOT 0.00145801 +/- 0.0001 Ecliptic ZDOT 0.00023911 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 59.85710637 +/- 0.0993 Geocenter to KBO 58.86831749 +/- 0.1089 # Hcoef: 5.71
The following table shows the complete astrometric record for 07TB418. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (07TB418) followed by the observatory code and reference code for the source of the astrometry.
2007 10 04.22064 01 10 48.14 +00 28 09.8 23.2R 07TB418 807 Cx2653 2007 11 13.03643 01 08 42.88 +00 16 34.6 23.4R 07TB418 807 Cx2653 2007 11 13.05461 01 08 42.82 +00 16 34.4 22.9I 07TB418 807 Cx2653 2007 11 15.03460 01 08 37.47 +00 16 10.0 23.3R 07TB418 807 Cx2653 2007 11 15.03977 01 08 37.45 +00 16 10.0 22.9I 07TB418 807 Cx2653 2007 11 17.02754 01 08 32.23 +00 15 46.8 23.4R 07TB418 807 Cx2653 2007 11 17.07006 01 08 32.12 +00 15 46.4 22.5I 07TB418 807 Cx2653 2007 12 01.11631 01 07 59.94 +00 13 44.4 23.3R 07TB418 807 Cx2653
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 -0.03 0.00 0.14 2 0.1090 -2002.05 0.08 74.03 -0.04 3 0.1091 -2002.95 -0.04 74.19 0.04 4 0.1145 -2086.45 0.00 82.24 -0.12 5 0.1145 -2086.73 -0.06 82.36 -0.02 6 0.1199 -2167.97 0.03 90.78 -0.22 7 0.1201 -2169.64 0.09 91.04 -0.17 8 0.1585 -2662.45 -0.08 162.41 0.40
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
07TB418 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0