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: 07DS101
# Created Thu May 24 01:37:35 2012
# Orbit generated from Bernstein formalism
# Fitting 24 observations of 24
# Arc: 2.03y
# First observation: 2005/02/10
# Last observation: 2007/02/20
Preliminary a, adot, b, bdot, g, gdot:
-0.000111 0.021443 -0.000001 -0.000191 0.022341 0.000000
# Chi-squared of fit: 27.30 DOF: 42 RMS: 0.19
# Min/Max residuals: -0.47 0.41
# Exact a, adot, b, bdot, g, gdot:
1.469329E-05 2.135054E-02 -1.251051E-08 -1.906609E-04 2.292447E-02 -1.817791E-03
# Covariance matrix:
2.3270E-13 -1.9487E-13 2.8522E-16 5.9866E-16 8.0300E-14 -1.5877E-12
-1.9487E-13 1.3435E-12 3.8286E-15 -1.3563E-14 5.0615E-13 2.9251E-11
2.8522E-16 3.8286E-15 1.9912E-13 -1.0913E-13 3.8033E-15 9.7121E-14
5.9866E-16 -1.3563E-14 -1.0913E-13 8.6463E-14 -6.8136E-15 -3.2039E-13
8.0300E-14 5.0615E-13 3.8033E-15 -6.8136E-15 6.7912E-13 1.3467E-11
-1.5877E-12 2.9251E-11 9.7121E-14 -3.2039E-13 1.3467E-11 6.8661E-10
# lat0 lon0 xBary yBary zBary JD0
1.319070 138.223140 -0.055207 0.022719 -0.981728 2453411.813023
# Heliocentric elements and errors
Epoch: 2453410.5000 = 2005/02/09
Mean Anomaly: 269.37915 +/- 0.169
Argument of Peri: 211.95763 +/- 0.141
Long of Asc Node: 26.69302 +/- 0.030
Inclination: 1.38737 +/- 0.000
Eccentricity: 0.08552396 +/- 0.0012
Semi-Major Axis: 44.24421775 +/- 0.0101
Time of Perihelion: 2480469.3197 +/- 49.7
Perihelion: 40.46027708 +/- 0.0536
Aphelion: 48.02815843 +/- 0.0539
Period (y) 294.3018 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.29574270 +/- 0.0012
Ecliptic Y 29.66690841 +/- 0.0010
Ecliptic Z 1.00416235 +/- 0.0000
Ecliptic XDOT -0.00153752 +/- 0.0000
Ecliptic YDOT -0.00205299 +/- 0.0000
Ecliptic ZDOT -0.00002769 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.60650490 +/- 0.0011
Geocenter to KBO 43.62150838 +/- 0.0016
# Hcoef: 6.95
The following table shows the complete astrometric record for 07DS101. 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 (07DS101) followed by the observatory code and reference code for the source of the astrometry.
2005 02 10.31228 09 24 20.03 +16 37 20.4 23.5g 07DS101 568 C~0VEW 2005 02 10.39529 09 24 19.64 +16 37 22.3 23.9g 07DS101 568 C~0VEW 2005 02 10.43481 09 24 19.45 +16 37 23.2 23.5g 07DS101 568 C~0VEW 2005 02 15.33591 09 23 56.73 +16 39 08.0 23.3g 07DS101 568 C~0VEW 2005 04 12.26136 09 20 45.61 +16 52 46.8 23.1i 07DS101 568 C~0VEW 2005 04 12.34223 09 20 45.47 +16 52 47.0 23.3i 07DS101 568 C~0VEW 2005 04 12.36980 09 20 45.43 +16 52 47.2 23.2i 07DS101 568 C~0VEW 2006 02 03.48138 09 29 43.82 +16 11 05.6 07DS101 568 C~0VEW 2006 02 06.33314 09 29 30.61 +16 12 09.0 23.0r 07DS101 568 C~0VEW 2006 02 06.37393 09 29 30.43 +16 12 09.8 22.8r 07DS101 568 C~0VEW 2006 02 06.41210 09 29 30.27 +16 12 10.8 22.9r 07DS101 568 C~0VEW 2006 11 23.52174 09 37 59.15 +15 28 48.1 07DS101 695 C~0VEW 2006 11 25.47919 09 37 58.78 +15 28 53.3 07DS101 695 C~0VEW 2007 02 14.46607 09 33 44.56 +15 50 57.6 23.2r 07DS101 568 C~0Vn4 2007 02 14.46984 09 33 44.53 +15 50 57.8 22.7r 07DS101 568 C~0VEW 2007 02 14.50376 09 33 44.38 +15 50 58.7 22.9r 07DS101 568 C~0VEW 2007 02 14.53694 09 33 44.22 +15 50 59.3 22.8r 07DS101 568 C~0VEW 2007 02 15.48068 09 33 39.85 +15 51 20.5 23.0r 07DS101 568 C~0VEW 2007 02 18.31004 09 33 26.84 +15 52 22.9 22.9R 07DS101 568 Cu1674 2007 02 18.32535 09 33 26.73 +15 52 23.0 22.9R 07DS101 568 Cu1674 2007 02 18.34062 09 33 26.68 +15 52 23.3 22.8R 07DS101 568 Cu1674 2007 02 20.39115 09 33 17.31 +15 53 08.0 22.8R 07DS101 568 Cu1674 2007 02 20.41199 09 33 17.19 +15 53 08.7 07DS101 568 Cu1674 2007 02 20.42957 09 33 17.11 +15 53 08.6 07DS101 568 Cu1674
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 0.01 0.00 -0.02 2 0.0002 -5.92 0.01 0.07 0.08 3 0.0003 -8.79 -0.05 0.08 0.11 4 0.0138 -351.73 -0.41 -1.27 0.12 5 0.1669 -3215.72 0.11 -65.35 0.06 6 0.1671 -3217.70 0.08 -65.77 -0.19 7 0.1672 -3218.31 0.13 -65.76 -0.11 8 0.9806 4918.86 0.09 -38.65 -0.14 9 0.9884 4718.18 -0.16 -38.58 -0.07 10 0.9885 4715.47 0.04 -38.64 -0.12 11 0.9886 4712.96 0.27 -38.42 0.11 12 1.7829 12517.48 0.07 -150.83 0.22 13 1.7883 12510.70 0.01 -147.65 0.16 14 2.0100 8597.79 0.41 -79.49 -0.09 15 2.0100 8597.32 0.20 -79.44 -0.04 16 2.0101 8594.97 0.28 -79.28 0.15 17 2.0102 8592.59 0.27 -79.45 0.00 18 2.0128 8525.95 0.02 -79.57 0.17 19 2.0205 8327.81 0.02 -80.58 0.23 20 2.0206 8326.27 -0.44 -80.99 -0.18 21 2.0206 8325.49 -0.13 -80.94 -0.11 22 2.0262 8182.88 -0.07 -81.85 -0.05 23 2.0263 8181.01 -0.47 -81.75 0.08 24 2.0263 8179.95 -0.30 -82.21 -0.37
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.
07DS101 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.976 44.005 43.949 ecceobj 0.082 0.084 0.079 incobj 1.390 1.390 1.390 qmin 40.159 40.055 40.251 qmax 47.977 48.148 47.840 amean 44.047 44.075 44.019 amin 44.030 44.058 44.000 amax 44.072 44.102 44.046 emean 0.078 0.080 0.075 emin 0.067 0.070 0.065 emax 0.089 0.092 0.086 imean 1.821 1.827 1.815 imin 1.004 1.007 1.001 imax 2.454 2.465 2.447 excite_mean 0.084 0.087 0.082 fracstop 1.000 1.000 1.000 cjmean 3.094 3.093 3.094 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 173.6 173.5 173.9 kozaiamp 180.0 180.0 180.0