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: 03YQ179 # Created Fri May 2 02:36:55 2008 # Orbit generated from Bernstein formalism # Fitting 23 observations of 24 # Arc: 4.19y # First observation: 2003/12/24 # Last observation: 2008/03/03 Preliminary a, adot, b, bdot, g, gdot: -0.000048 0.030429 -0.000074 0.011637 0.025960 0.000000 # Chi-squared of fit: 30.45 DOF: 40 RMS: 0.20 # Min/Max residuals: -0.57 0.45 # Exact a, adot, b, bdot, g, gdot: 1.793584E-05 2.998516E-02 6.189162E-06 1.141617E-02 2.609042E-02 -6.071474E-03 # Covariance matrix: 1.6626E-13 -6.7005E-14 3.9417E-15 -1.2177E-14 6.9172E-14 -2.7252E-13 -6.7005E-14 2.9087E-13 -3.6024E-14 1.1067E-13 1.7020E-13 2.4126E-12 3.9417E-15 -3.6024E-14 1.3159E-13 -5.5857E-14 -2.2299E-14 -3.2872E-13 -1.2177E-14 1.1067E-13 -5.5857E-14 7.2511E-14 6.8348E-14 1.0099E-12 6.9172E-14 1.7020E-13 -2.2299E-14 6.8348E-14 3.0960E-13 1.4736E-12 -2.7252E-13 2.4126E-12 -3.2872E-13 1.0099E-12 1.4736E-12 2.2023E-11 # lat0 lon0 xBary yBary zBary JD0 -0.032639 110.155428 0.306077 -0.000462 -0.931652 2452997.959983 # Heliocentric elements and errors Epoch: 2452990.5000 = 2003/12/17 Mean Anomaly: 353.31469 +/- 0.005 Argument of Peri: 30.41363 +/- 0.019 Long of Asc Node: 109.79582 +/- 0.000 Inclination: 20.83882 +/- 0.000 Eccentricity: 0.58630368 +/- 0.0001 Semi-Major Axis: 90.05774048 +/- 0.0265 Time of Perihelion: 2458787.4415 +/- 3.2 Perihelion: 37.25655627 +/- 0.0164 Aphelion: 142.85892468 +/- 0.0438 Period (y) 854.6529 +/- 0.38 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -13.24440764 +/- 0.0003 Ecliptic Y 36.96378436 +/- 0.0008 Ecliptic Z -0.02160596 +/- 0.0000 Ecliptic XDOT -0.00273881 +/- 0.0000 Ecliptic YDOT -0.00168799 +/- 0.0000 Ecliptic ZDOT 0.00119850 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.26494817 +/- 0.0007 Geocenter to KBO 38.32824486 +/- 0.0008 # Hcoef: 7.06
The following table shows the complete astrometric record for 03YQ179. 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 (03YQ179) followed by the observatory code and reference code for the source of the astrometry.
2003 12 24.45924 07 27 11.77 +21 53 39.4 23.0g 03YQ179 568 Cq9908 2003 12 24.46065 07 27 11.77 +21 53 39.3 22.8g 03YQ179 568 Cq9908 2003 12 24.48237 07 27 11.65 +21 53 39.8 23.0g 03YQ179 568 Cq9908 2003 12 24.48381 07 27 11.68 +21 53 40.3 22.6g 03YQ179 568 Cq9908 2003 12 24.50560 07 27 11.54 +21 53 40.3 23.1g 03YQ179 568 Cq9908 2003 12 24.50702 07 27 11.51 +21 53 39.9 23.4g 03YQ179 568 Cq9908 2003 12 25.50067 07 27 06.42 +21 53 57.2 22.9g 03YQ179 568 Cq9908 2004 02 20.11144 07 22 23.65 +22 09 36.4 03YQ179 695 Cq9908 2004 04 15.15273 07 21 24.80 +22 17 15.2 03YQ179 675 Cq9908 2004 04 15.20821 07 21 24.89 +22 17 15.5 03YQ179 675 Cq9908 2004 04 16.19489 07 21 26.79 +22 17 17.5 03YQ179 675 Cq9908 2005 01 08.34713 07 33 38.38 +22 21 31.9 22.8r 03YQ179 568 Cq9908 2005 01 08.38499 07 33 38.18 +22 21 32.6 22.6r 03YQ179 568 Cq9908 2005 01 08.42277 07 33 37.97 +22 21 33.3 22.8r 03YQ179 568 Cq9908 2005 01 15.37010 07 33 00.08 +22 23 42.8 03YQ179 568 Cq9908 2006 01 28.29527 07 39 49.00 +22 50 04.6 23. R 03YQ179 675 Cq9908 2006 01 28.42959 07 39 48.27 +22 50 06.9 03YQ179 675 Cq9908 2007 02 14.24568 07 46 29.72 +23 16 24.7 03YQ179 695 Cy4658 2007 02 16.30278 07 46 20.40 +23 16 59.0 03YQ179 695 Cy4658 2007 02 16.39829 07 46 20.00 +23 17 00.6 03YQ179 695 Cy4658 2007 11 08.40387 08 01 31.79 +23 04 19.5 03YQ179 695 Cy4004 2007 11 09.39987 08 01 31.01 +23 04 32.3 03YQ179 695 Cy4004 2008 03 03.16918 07 53 27.45 +23 41 03.9 03YQ179 695 Cy7592 2008 03 03.21523 07 53 27.29 +23 41 04.1 03YQ179 695 Cy7592
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 0.05 0.00 0.15 2 0.0000 0.01 0.17 -0.10 0.04 3 0.0001 -1.71 0.05 0.15 0.15 4 0.0001 -1.37 ( 0.50) 0.71 ( 0.70) 5 0.0001 -3.30 0.18 0.42 0.28 6 0.0001 -3.65 -0.07 -0.04 -0.19 7 0.0029 -76.27 -0.21 6.61 0.07 8 0.1578 -4102.86 0.08 370.84 0.21 9 0.3085 -4976.35 0.07 711.59 -0.09 10 0.3087 -4975.16 -0.11 712.06 0.06 11 0.3114 -4949.30 -0.20 717.69 -0.27 12 1.0428 5054.31 -0.21 2474.98 -0.01 13 1.0429 5051.46 -0.08 2475.23 -0.01 14 1.0430 5048.47 -0.09 2475.46 -0.03 15 1.0620 4508.75 -0.04 2520.42 -0.34 16 2.0967 9846.40 0.40 5006.90 -0.05 17 2.0971 9836.04 0.24 5007.46 -0.24 18 3.1425 15041.64 0.17 7537.07 -0.57 19 3.1481 14908.38 -0.36 7547.63 0.27 20 3.1484 14902.63 0.04 7548.21 0.45 21 3.8739 27537.50 -0.08 9251.24 -0.13 22 3.8766 27524.13 -0.04 9261.64 -0.18 23 4.1909 20464.19 -0.03 10080.94 0.40 24 4.1910 20461.97 0.05 10080.71 0.03
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.
03YQ179 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 89.037 89.036 89.038 ecceobj 0.581 0.581 0.581 incobj 20.860 20.860 20.860 qmin 35.666 35.515 35.611 qmax 144.548 144.821 144.751 amean 88.042 88.051 88.031 amin 86.231 86.154 86.270 amax 90.674 90.719 90.664 emean 0.579 0.579 0.579 emin 0.563 0.563 0.560 emax 0.597 0.598 0.597 imean 18.863 18.914 18.900 imin 17.840 17.646 17.767 imax 19.869 19.987 20.428 fracstop 1.000 1.000 1.000 cjmean 2.980 2.980 2.980 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 195.4 173.9 180.8 kozaiamp 160.4 180.0 180.0