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: 175113 # Created Fri May 2 02:36:24 2008 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 17 observations of 17 # Arc: 15.17y # First observation: 1992/06/04 # Last observation: 2007/08/06 # Chi-squared of fit: 61.28 DOF: 28 RMS: 0.34 # Min/Max residuals: -1.26 0.49 # Exact a, adot, b, bdot, g, gdot: 1.515630E-05 2.354516E-02 -2.436639E-06 -4.196008E-03 2.492423E-02 1.648483E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -8.729296 -54.751482 0.782918 -0.096964 -0.632182 2448778.205763 # Heliocentric elements and errors Epoch: 2448780.5000 = 1992/06/07 Mean Anomaly: 129.75563 +/- 0.000 Argument of Peri: 84.75062 +/- 0.000 Long of Asc Node: 84.62230 +/- 0.000 Inclination: 13.35862 +/- 0.000 Eccentricity: 0.06942659 +/- 0.0000 Semi-Major Axis: 38.93074715 +/- 0.0000 Time of Perihelion: 2416801.7684 +/- 0.0 Perihelion: 36.22791813 +/- 0.0000 Aphelion: 41.63357617 +/- 0.0000 Period (y) 242.9111 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.61474483 +/- 0.0000 Ecliptic Y -33.36303102 +/- 0.0000 Ecliptic Z -6.08922322 +/- 0.0000 Ecliptic XDOT 0.00217480 +/- 0.0000 Ecliptic YDOT 0.00139811 +/- 0.0000 Ecliptic ZDOT -0.00048306 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.76266221 +/- 0.0000 Geocenter to KBO 40.12159031 +/- 0.0000 # Hcoef: 4.69
The following table shows the complete astrometric record for 175113. 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 (175113) followed by the observatory code and reference code for the source of the astrometry.
1992 06 04.70509 20 39 56.05 -27 24 29.6 175113 260 x1793 1994 07 03.67016 20 50 28.58 -27 20 26.2 175113 260 x1793 2002 07 29.35644 21 36 46.13 -25 52 48.7 20.5R 175113 644 Cv4433 2002 08 19.28998 21 34 59.60 -26 01 55.6 175113 644 Cv4433 2002 08 30.32119 21 34 03.93 -26 05 47.0 20.4R 175113 644 Cv4433 2002 08 30.34657 21 34 03.84 -26 05 47.7 20.8R 175113 644 Cv4433 2002 08 30.37748 21 34 03.63 -26 05 47.5 175113 644 Cv4433 2002 09 15.20378 21 32 50.63 -26 09 46.2 20.8R 175113 644 Cv4433 2004 08 07.27847 21 47 42.39 -25 24 01.0 20.7R 175113 644 Cv4433 2004 08 07.34384 21 47 42.06 -25 24 02.8 20.7R 175113 644 Cv4433 2004 08 07.41607 21 47 41.68 -25 24 04.8 20.5R 175113 644 Cv4433 2004 09 23.18140 21 43 58.68 -25 39 12.9 20.2R 175113 644 Cv4433 2004 09 23.22385 21 43 58.51 -25 39 13.2 20.2R 175113 644 Cv4433 2007 08 05.31268 22 05 15.41 -24 26 33.8 20.5R 175113 675 Cv4433 2007 08 05.35594 22 05 15.23 -24 26 35.0 20.5R 175113 675 Cv4433 2007 08 06.30945 22 05 10.66 -24 27 04.7 20.3R 175113 675 Cv4433 2007 08 06.35746 22 05 10.39 -24 27 05.8 20.3R 175113 675 Cv4433
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 -0.20 0.00 -1.26 2 2.0779 0.00 0.10 0.00 0.26 3 10.1483 0.00 0.36 0.00 -0.17 4 10.2056 0.00 0.13 0.00 -0.04 5 10.2358 0.00 -0.23 0.00 -0.12 6 10.2358 0.00 0.33 0.00 -0.35 7 10.2359 0.00 -0.51 0.00 0.42 8 10.2793 0.00 0.11 0.00 0.19 9 12.1741 0.00 0.13 0.00 -0.22 10 12.1742 0.00 0.18 0.00 -0.18 11 12.1744 0.00 0.00 0.00 -0.17 12 12.3025 0.00 0.19 0.00 0.07 13 12.3026 0.00 0.15 0.00 0.13 14 15.1666 0.00 -0.08 0.00 0.37 15 15.1667 0.00 0.37 0.00 0.49 16 15.1693 0.00 0.14 0.00 -0.34 17 15.1695 0.00 -0.40 0.00 0.01
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.
175113 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 39.047 39.047 39.047 ecceobj 0.064 0.064 0.064 incobj 13.375 13.375 13.375 qmin 34.993 34.977 34.989 qmax 43.379 43.398 43.475 amean 39.057 39.057 39.056 amin 38.730 38.740 38.730 amax 39.393 39.405 39.406 emean 0.072 0.072 0.072 emin 0.041 0.041 0.041 emax 0.102 0.102 0.103 imean 12.673 12.673 12.674 imin 9.558 9.556 9.557 imax 16.266 16.268 16.274 fracstop 1.000 1.000 1.000 cjmean 2.981 2.981 2.981 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 179.5 179.5 179.6 kozaiamp 180.0 180.0 179.9