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: 07UM126 # Created Fri May 2 02:37:01 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 50 observations of 51 # Arc: 6.31y # First observation: 2001/07/28 # Last observation: 2007/11/19 # Chi-squared of fit: 54.94 DOF: 94 RMS: 0.19 # Min/Max residuals: -0.27 0.88 # Exact a, adot, b, bdot, g, gdot: 3.876360E-05 3.081977E-01 3.114581E-06 2.355000E-02 1.256752E-01 -3.954668E-02 # Covariance matrix: 6.4445E-13 -6.3768E-09 5.8744E-14 -3.2516E-09 9.9990E-12 5.5202E-10 -6.3768E-09 2.6445E-04 -2.4322E-09 1.3487E-04 -2.0840E-07 -2.2922E-05 5.8744E-14 -2.4322E-09 5.1156E-13 -1.2406E-09 2.2316E-12 2.1078E-10 -3.2516E-09 1.3487E-04 -1.2406E-09 6.8795E-05 -1.0408E-07 -1.1691E-05 9.9990E-12 -2.0840E-07 2.2316E-12 -1.0408E-07 1.6626E-08 1.5689E-08 5.5202E-10 -2.2922E-05 2.1078E-10 -1.1691E-05 1.5689E-08 1.9872E-06 # lat0 lon0 xBary yBary zBary JD0 45.836839 -90.845168 -0.594354 0.592989 -0.576128 2452118.700963 # Heliocentric elements and errors Epoch: 2452120.5000 = 2001/07/30 Mean Anomaly: 353.29366 +/- 0.010 Argument of Peri: 104.06279 +/- 0.004 Long of Asc Node: 184.91710 +/- 0.003 Inclination: 41.76174 +/- 0.000 Eccentricity: 0.33673795 +/- 0.0000 Semi-Major Axis: 12.81984961 +/- 0.0000 Time of Perihelion: 2452432.8244 +/- 0.5 Perihelion: 8.50291973 +/- 0.0005 Aphelion: 17.13677949 +/- 0.0005 Period (y) 45.9021 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 0.50352330 +/- 0.0000 Ecliptic Y -6.37303559 +/- 0.0000 Ecliptic Z 5.70809276 +/- 0.0000 Ecliptic XDOT 0.00671910 +/- 0.0000 Ecliptic YDOT 0.00087074 +/- 0.0000 Ecliptic ZDOT -0.00026038 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 8.57040090 +/- 0.0000 Geocenter to KBO 7.95710589 +/- 0.0000 # Hcoef: 10.02
The following table shows the complete astrometric record for 07UM126. 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 (07UM126) followed by the observatory code and reference code for the source of the astrometry.
2001 07 28.20022 17 57 27.15 +22 23 57.9 20.2 07UM126 644 Cx9539 2001 07 28.21142 17 57 27.01 +22 23 56.0 20.0 07UM126 644 Cx9539 2001 07 28.22320 17 57 26.84 +22 23 53.9 19.8 07UM126 644 Cx9539 2006 08 21.33119 23 40 11.73 +07 42 13.4 20.2V 07UM126 691 Cx9539 2006 08 21.34853 23 40 11.53 +07 42 11.2 20.3V 07UM126 691 Cx9539 2006 08 21.36588 23 40 11.26 +07 42 08.7 20.4V 07UM126 691 Cx9539 2006 10 23.09473 23 25 22.74 +04 22 30.8 20.5V 07UM126 691 Cx9539 2006 10 23.10768 23 25 22.61 +04 22 28.6 20.5V 07UM126 691 Cx9539 2006 10 23.12064 23 25 22.48 +04 22 25.9 20.5V 07UM126 691 Cx9539 2007 09 10.37887 00 24 11.30 +02 41 09.9 20.4V 07UM126 G96 Cx9539 2007 09 10.38701 00 24 11.19 +02 41 08.6 20.4V 07UM126 G96 Cx9539 2007 09 10.39512 00 24 11.08 +02 41 07.3 20.5V 07UM126 G96 Cx9539 2007 09 10.40316 00 24 10.94 +02 41 05.7 20.3V 07UM126 G96 Cx9539 2007 10 07.24221 00 17 31.81 +01 19 29.6 20.5V 07UM126 G96 Cx9539 2007 10 07.24771 00 17 31.70 +01 19 28.6 20.4V 07UM126 G96 Cx9539 2007 10 07.25321 00 17 31.63 +01 19 27.6 20.2V 07UM126 G96 Cx9539 2007 10 07.25872 00 17 31.56 +01 19 26.6 20.4V 07UM126 G96 Cx9539 2007 10 14.33348 00 15 48.77 +00 58 22.0 20.5 07UM126 705 Cx9539 2007 10 14.33431 00 15 48.75 +00 58 21.9 21.1 07UM126 705 Cx9539 2007 10 19.24090 00 14 41.17 +00 44 13.7 20.3V 07UM126 G96 Cx9539 2007 10 19.24633 00 14 41.10 +00 44 12.4 20.8V 07UM126 G96 Cx9539 2007 10 19.25177 00 14 41.02 +00 44 11.4 20.5V 07UM126 G96 Cx9539 2007 10 19.25721 00 14 40.95 +00 44 10.8 20.5V 07UM126 G96 Cx9539 2007 10 20.31678 00 14 26.82 +00 41 11.7 20.8 07UM126 705 Cx9539 2007 10 20.31761 00 14 26.82 +00 41 11.6 21.6 07UM126 705 Cx9539 2007 10 30.24413 00 12 25.25 +00 14 34.4 20.8 07UM126 705 Cx9539 2007 10 30.24612 00 12 25.23 +00 14 34.0 20.6V 07UM126 G96 Cx9539 2007 10 30.24662 00 12 25.22 +00 14 34.0 21.5 07UM126 705 Cx9539 2007 10 30.25441 00 12 25.12 +00 14 32.7 20.8V 07UM126 G96 Cx9539 2007 10 30.26267 00 12 25.09 +00 14 31.5 20.7V 07UM126 G96 Cx9539 2007 10 30.27097 00 12 24.98 +00 14 30.3 20.3V 07UM126 G96 Cx9539 2007 11 04.23780 00 11 32.46 +00 02 15.6 20.7 07UM126 705 Cx9539 2007 11 04.24112 00 11 32.43 +00 02 15.1 21.4 07UM126 705 Cx9539 2007 11 05.17943 00 11 23.24 +00 00 01.4 20.1V 07UM126 G96 Cx9539 2007 11 05.18693 00 11 23.17 +00 00 00.5 20.3V 07UM126 G96 Cx9539 2007 11 05.19442 00 11 23.10 -00 00 00.5 20.2V 07UM126 G96 Cx9539 2007 11 05.20197 00 11 23.02 -00 00 01.5 20.0V 07UM126 G96 Cx9539 2007 11 05.24125 00 11 22.62 -00 00 07.1 20.8 07UM126 705 Cx9539 2007 11 05.24457 00 11 22.59 -00 00 07.6 21.5 07UM126 705 Cx9539 2007 11 08.23901 00 10 54.85 -00 07 00.6 20.8 07UM126 705 Cx9539 2007 11 08.24233 00 10 54.83 -00 07 01.0 21.6 07UM126 705 Cx9539 2007 11 11.24761 00 10 29.56 -00 13 36.0 20.7 07UM126 705 Cx9539 2007 11 11.25093 00 10 29.52 -00 13 36.5 21.4 07UM126 705 Cx9539 2007 11 13.23758 00 10 14.30 -00 17 46.5 20.8 07UM126 705 Cx9539 2007 11 13.24090 00 10 14.27 -00 17 46.9 21.5 07UM126 705 Cx9539 2007 11 14.23578 00 10 07.10 -00 19 48.6 20.8 07UM126 705 Cx9539 2007 11 14.23910 00 10 07.08 -00 19 49.1 21.5 07UM126 705 Cx9539 2007 11 17.23984 00 09 47.31 -00 25 42.1 20.8 07UM126 705 Cx9539 2007 11 17.24316 00 09 47.28 -00 25 42.5 21.5 07UM126 705 Cx9539 2007 11 19.21634 00 09 35.86 -00 29 22.8 21.0 07UM126 705 Cx9539 2007 11 19.21717 00 09 35.87 -00 29 22.9 21.9 07UM126 705 Cx9539
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 ( -0.24) 0.00 ( -4.55) 2 0.0000 0.00 0.31 0.00 0.13 3 0.0001 0.00 0.14 0.00 0.06 4 5.0654 0.00 0.14 0.00 -0.17 5 5.0654 0.00 0.65 0.00 0.23 6 5.0655 0.00 0.11 0.00 0.34 7 5.2372 0.00 0.06 0.00 0.24 8 5.2373 0.00 0.09 0.00 0.50 9 5.2373 0.00 0.12 0.00 0.26 10 6.1196 0.00 0.10 0.00 0.05 11 6.1196 0.00 0.20 0.00 0.19 12 6.1196 0.00 0.28 0.00 0.32 13 6.1197 0.00 -0.10 0.00 0.14 14 6.1931 0.00 0.27 0.00 -0.27 15 6.1931 0.00 -0.12 0.00 -0.27 16 6.1932 0.00 0.08 0.00 -0.27 17 6.1932 0.00 0.28 0.00 -0.27 18 6.2125 0.00 0.34 0.00 0.21 19 6.2126 0.00 0.21 0.00 0.25 20 6.2260 0.00 0.26 0.00 0.20 21 6.2260 0.00 0.33 0.00 -0.18 22 6.2260 0.00 0.24 0.00 -0.26 23 6.2260 0.00 0.31 0.00 0.07 24 6.2289 0.00 0.20 0.00 0.18 25 6.2289 0.00 0.37 0.00 0.22 26 6.2561 0.00 0.15 0.00 0.15 27 6.2561 0.00 0.13 0.00 0.05 28 6.2561 0.00 0.13 0.00 0.13 29 6.2561 0.00 -0.09 0.00 0.02 30 6.2562 0.00 0.88 0.00 0.08 31 6.2562 0.00 0.66 0.00 0.15 32 6.2698 0.00 0.13 0.00 0.28 33 6.2698 0.00 0.19 0.00 0.25 34 6.2724 0.00 0.10 0.00 -0.07 35 6.2724 0.00 0.18 0.00 0.09 36 6.2724 0.00 0.25 0.00 0.15 37 6.2724 0.00 0.18 0.00 0.22 38 6.2725 0.00 0.13 0.00 0.16 39 6.2725 0.00 0.17 0.00 0.13 40 6.2807 0.00 -0.02 0.00 0.17 41 6.2807 0.00 0.14 0.00 0.22 42 6.2890 0.00 0.10 0.00 0.23 43 6.2890 0.00 -0.09 0.00 0.16 44 6.2944 0.00 0.01 0.00 0.11 45 6.2944 0.00 -0.06 0.00 0.12 46 6.2972 0.00 -0.02 0.00 0.17 47 6.2972 0.00 0.04 0.00 0.07 48 6.3054 0.00 -0.05 0.00 0.12 49 6.3054 0.00 -0.18 0.00 0.10 50 6.3108 0.00 -0.12 0.00 0.18 51 6.3108 0.00 0.10 0.00 0.17
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.
07UM126 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 12.841 12.841 12.841 ecceobj 0.338 0.338 0.338 incobj 41.768 41.768 41.768 qmin 8.013 8.197 8.271 qmax 17.662 17.928 18.133 amean 12.826 12.990 13.062 amin 11.850 12.818 12.841 amax 13.138 13.238 13.405 emean 0.327 0.352 0.347 emin 0.285 0.334 0.324 emax 0.360 0.369 0.360 imean 41.676 41.013 40.949 imin 40.853 40.643 40.600 imax 42.635 41.487 41.445 fracstop 0.005 0.003 0.004 cjmean 3.275 3.254 3.246 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 108.5 103.5 107.0 kozaiamp 12.0 9.3 11.2