The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 11ON45 # Created Thu May 24 01:37:55 2012 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 38.77d # First observation: 2011/07/27 # Last observation: 2011/09/04 Preliminary a, adot, b, bdot, g, gdot: -0.000031 0.282147 0.000012 0.025483 0.113594 0.000000 # Chi-squared of fit: 20.94 DOF: 28 RMS: 0.20 # Min/Max residuals: -0.44 0.67 # Exact a, adot, b, bdot, g, gdot: 2.938496E-05 1.807363E-01 4.771800E-06 2.555760E-02 9.690713E-02 -2.195993E-02 # Covariance matrix: 2.5030E-13 1.7446E-11 -3.0395E-15 5.0782E-13 4.5933E-12 1.9325E-10 1.7446E-11 1.9862E-06 2.0030E-10 -2.8544E-09 3.2296E-07 -4.1324E-07 -3.0395E-15 2.0030E-10 1.8279E-13 -2.4684E-12 3.2488E-11 -5.2947E-11 5.0782E-13 -2.8544E-09 -2.4684E-12 6.7979E-11 -4.5554E-10 1.7985E-09 4.5933E-12 3.2296E-07 3.2488E-11 -4.5554E-10 5.2535E-08 -6.4032E-08 1.9325E-10 -4.1324E-07 -5.2947E-11 1.7985E-09 -6.4032E-08 5.2947E-07 # lat0 lon0 xBary yBary zBary JD0 -1.660388 -38.674998 0.306227 -0.028064 -0.966203 2455769.969166 # Heliocentric elements and errors Epoch: 2455760.5000 = 2011/07/18 Mean Anomaly: 290.04459 +/- 2.676 Argument of Peri: 75.95209 +/- 3.251 Long of Asc Node: 330.38827 +/- 0.076 Inclination: 8.18974 +/- 0.061 Eccentricity: 0.14960723 +/- 0.0044 Semi-Major Axis: 11.65128775 +/- 0.0819 Time of Perihelion: 2458583.2872 +/- 103.8 Perihelion: 9.90817082 +/- 0.0868 Aphelion: 13.39440468 +/- 0.1075 Period (y) 39.7712 +/- 0.42 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 8.62008283 +/- 0.0190 Ecliptic Y -7.28810803 +/- 0.0152 Ecliptic Z -0.29890346 +/- 0.0007 Ecliptic XDOT 0.00272022 +/- 0.0000 Ecliptic YDOT 0.00436649 +/- 0.0000 Ecliptic ZDOT 0.00073979 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 11.29210742 +/- 0.0176 Geocenter to KBO 10.31915825 +/- 0.0244 # Hcoef: 11.38
The following table shows the complete astrometric record for 11ON45. 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 (11ON45) followed by the observatory code and reference code for the source of the astrometry.
2011 07 27.46840 21 37 02.552 -15 57 54.32 22.2w 11ON45 F51 C~0XQ2 2011 07 27.48308 21 37 02.327 -15 57 55.23 22.2w 11ON45 F51 C~0XQ2 2011 07 27.49779 21 37 02.107 -15 57 56.10 22.0w 11ON45 F51 C~0XQ2 2011 07 29.460895 21 36 32.788 -15 59 55.71 21.6R 11ON45 568 C~0XQ2 2011 07 29.462311 21 36 32.766 -15 59 55.77 21.5R 11ON45 568 C~0XQ2 2011 07 29.463792 21 36 32.745 -15 59 55.88 21.5R 11ON45 568 C~0XQ2 2011 07 29.465177 21 36 32.721 -15 59 55.97 21.5R 11ON45 568 C~0XQ2 2011 08 05.486080 21 34 44.421 -16 07 13.35 21.5R 11ON45 568 C~0XQ2 2011 08 05.488584 21 34 44.384 -16 07 13.41 21.1R 11ON45 568 C~0XQ2 2011 08 07.378674 21 34 14.574 -16 09 12.14 21.2R 11ON45 568 C~0XQ2 2011 08 07.382402 21 34 14.512 -16 09 12.39 21.1R 11ON45 568 C~0XQ2 2011 08 07.386125 21 34 14.452 -16 09 12.62 21.3R 11ON45 568 C~0XQ2 2011 08 19.523699 21 31 00.459 -16 21 44.27 21.7R 11ON45 568 C~0XTg 2011 08 19.525115 21 31 00.432 -16 21 44.41 21.3R 11ON45 568 C~0XTg 2011 09 04.21496 21 27 00.02 -16 36 14.2 11ON45 291 C~0Y0E 2011 09 04.22953 21 26 59.88 -16 36 14.6 11ON45 291 C~0Y0E 2011 09 04.24336 21 26 59.60 -16 36 14.8 11ON45 291 C~0Y0E
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 0.02 0.00 -0.12 2 0.0000 -3.36 -0.02 0.19 -0.13 3 0.0001 -6.65 0.03 0.39 -0.12 4 0.0055 -445.41 -0.02 23.62 0.14 5 0.0055 -445.73 -0.01 23.66 0.16 6 0.0055 -446.06 0.01 23.66 0.14 7 0.0055 -446.41 -0.03 23.68 0.14 8 0.0247 -2065.33 0.06 111.27 -0.14 9 0.0247 -2065.85 0.13 111.38 -0.06 10 0.0299 -2510.85 -0.05 136.39 -0.01 11 0.0299 -2511.77 -0.08 136.44 -0.02 12 0.0299 -2512.67 -0.07 136.50 -0.01 13 0.0631 -5401.33 0.05 312.07 0.03 14 0.0631 -5401.75 -0.02 312.06 -0.01 15 0.1061 -8962.44 -0.44 571.28 -0.24 16 0.1061 -8964.48 0.67 571.53 -0.27 17 0.1062 -8968.37 -0.23 572.59 0.53
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.
11ON45 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 11.579 11.579 11.579 ecceobj 0.151 0.151 0.151 incobj 8.198 8.198 8.198 qmin 9.426 9.547 9.689 qmax 18.754 18.321 14.302 amean 13.250 13.046 11.543 amin 11.442 11.579 10.486 amax 14.174 14.095 12.007 emean 0.268 0.252 0.149 emin 0.151 0.151 0.031 emax 0.324 0.301 0.191 imean 8.897 9.013 9.462 imin 7.349 7.966 9.213 imax 11.321 9.905 9.862 excite_mean 0.312 0.299 0.226 fracstop 0.002 0.001 0.001 cjmean 3.546 3.574 3.819 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 240.7 249.3 207.8 kozaiamp 130.9 138.8 134.5