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: 02GF32
# Created Thu May 24 01:37:11 2012
# Orbit generated from Bernstein formalism
# Fitting 22 observations of 23
# Arc: 1.94y
# First observation: 2002/04/08
# Last observation: 2004/03/16
Preliminary a, adot, b, bdot, g, gdot:
-0.000085 0.022049 -0.000003 -0.001071 0.024018 0.000000
# Chi-squared of fit: 11.31 DOF: 38 RMS: 0.13
# Min/Max residuals: -0.55 0.26
# Exact a, adot, b, bdot, g, gdot:
1.460306E-05 2.222071E-02 -1.454537E-06 -1.081563E-03 2.423191E-02 3.820227E-03
# Covariance matrix:
4.9610E-13 -3.9214E-15 2.0299E-15 -1.2403E-14 5.2732E-13 6.6620E-12
-3.9214E-15 5.2278E-13 3.5431E-15 -2.2306E-14 2.7343E-13 1.2030E-11
2.0299E-15 3.5431E-15 1.2378E-13 -9.9765E-14 4.1667E-15 1.3290E-13
-1.2403E-14 -2.2306E-14 -9.9765E-14 1.7689E-13 -2.5741E-14 -8.3306E-13
5.2732E-13 2.7343E-13 4.1667E-15 -2.5741E-14 8.0579E-13 1.3847E-11
6.6620E-12 1.2030E-11 1.3290E-13 -8.3306E-13 1.3847E-11 4.4903E-10
# lat0 lon0 xBary yBary zBary JD0
0.144781 -138.051226 0.401334 0.002280 -0.919958 2452372.636773
# Heliocentric elements and errors
Epoch: 2452370.5000 = 2002/04/06
Mean Anomaly: 105.51246 +/- 0.176
Argument of Peri: 53.24323 +/- 0.151
Long of Asc Node: 44.31101 +/- 0.001
Inclination: 2.78421 +/- 0.001
Eccentricity: 0.17889792 +/- 0.0007
Semi-Major Axis: 39.23847712 +/- 0.0098
Time of Perihelion: 2426057.6494 +/- 42.8
Perihelion: 32.21879516 +/- 0.0291
Aphelion: 46.25815908 +/- 0.0303
Period (y) 245.7969 +/- 0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -31.64397126 +/- 0.0012
Ecliptic Y -27.89750050 +/- 0.0010
Ecliptic Z 0.10420330 +/- 0.0000
Ecliptic XDOT 0.00134865 +/- 0.0000
Ecliptic YDOT -0.00215737 +/- 0.0000
Ecliptic ZDOT -0.00012089 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.18556993 +/- 0.0011
Geocenter to KBO 41.26789020 +/- 0.0015
# Hcoef: 5.69
The following table shows the complete astrometric record for 02GF32. 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 (02GF32) followed by the observatory code and reference code for the source of the astrometry.
2002 04 08.13603 14 38 13.38 -15 16 57.6 21.1R 02GF32 807 Cf5154 2002 04 08.22273 14 38 13.00 -15 16 55.9 02GF32 807 Cf5154 2002 04 09.36795 14 38 08.02 -15 16 33.4 02GF32 807 Cf5154 2002 06 07.30424 14 33 41.64 -14 56 18.3 02GF32 568 Cf8972 2002 06 07.30783 14 33 41.63 -14 56 18.2 02GF32 568 Cf8972 2002 06 07.31454 14 33 41.61 -14 56 18.1 02GF32 568 Cf8972 2002 06 07.32242 14 33 41.57 -14 56 18.0 02GF32 568 Cf8972 2002 06 07.32754 14 33 41.55 -14 56 17.9 02GF32 568 Cf8972 2002 06 07.33125 14 33 41.54 -14 56 17.8 02GF32 568 Cf8972 2002 06 07.33487 14 33 41.53 -14 56 17.7 02GF32 568 Cf8972 2002 06 07.34156 14 33 41.50 -14 56 17.7 02GF32 568 Cf8972 2002 06 07.34944 14 33 41.47 -14 56 17.5 02GF32 568 Cf8972 2002 06 07.35457 14 33 41.45 -14 56 17.4 02GF32 568 Cf8972 2002 06 12.20771 14 33 24.07 -14 54 59.1 21.7R 02GF32 688 Cf7381 2002 06 12.30815 14 33 23.78 -14 54 56.3 02GF32 688 Cf7381 2003 05 30.19331 14 39 10.40 -15 25 49.4 21.5R 02GF32 807 Ci2129 2003 05 30.27877 14 39 10.02 -15 25 47.5 02GF32 807 Ci2129 2003 05 31.11193 14 39 06.56 -15 25 32.1 21.4R 02GF32 807 Ci2129 2003 05 31.14014 14 39 06.43 -15 25 31.4 02GF32 807 Ci2129 2003 05 31.20217 14 39 06.17 -15 25 30.4 02GF32 807 Ci2129 2003 06 01.03225 14 39 02.74 -15 25 15.1 02GF32 807 Ci2129 2004 03 16.39418 14 49 24.84 -16 15 20.9 22.5R 02GF32 695 Ck4262 2004 03 16.48630 14 49 24.56 -16 15 19.6 02GF32 695 Ck4262
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 0.15 2 0.0002 -5.75 -0.02 -0.07 0.17 3 0.0034 -81.24 0.04 -0.76 0.12 4 0.1647 -4126.07 -0.04 -37.97 0.00 5 0.1647 -4126.23 0.00 -37.92 0.05 6 0.1648 -4126.54 0.08 -37.91 0.06 7 0.1648 -4127.12 -0.05 -38.00 -0.01 8 0.1648 -4127.43 -0.06 -37.99 0.00 9 0.1648 -4127.60 -0.01 -37.94 0.05 10 0.1648 -4127.77 0.03 -37.89 0.11 11 0.1648 -4128.18 0.00 -38.03 -0.02 12 0.1649 -4128.66 -0.02 -37.98 0.04 13 0.1649 -4128.96 -0.03 -37.97 0.05 14 0.1782 -4392.83 0.13 -42.10 -0.55 15 0.1784 -4397.70 ( 0.59) -40.75 ( 0.90) 16 1.1418 947.98 0.10 -253.75 -0.18 17 1.1421 942.17 -0.19 -253.62 0.02 18 1.1444 889.83 0.11 -254.25 -0.10 19 1.1444 887.82 -0.08 -254.16 0.02 20 1.1446 883.94 0.01 -254.35 -0.12 21 1.1469 832.04 0.03 -254.95 -0.24 22 1.9391 10305.94 0.09 -429.79 0.12 23 1.9394 10301.69 -0.09 -429.73 0.26
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.
02GF32 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.079 39.108 39.051 ecceobj 0.178 0.180 0.177 incobj 2.792 2.792 2.792 qmin 32.216 32.163 32.274 qmax 47.124 47.123 47.096 amean 39.456 39.456 39.456 amin 39.258 39.277 39.237 amax 39.670 39.647 39.693 emean 0.175 0.176 0.173 emin 0.163 0.165 0.161 emax 0.188 0.189 0.187 imean 2.000 2.049 1.922 imin 1.457 1.532 1.285 imax 2.547 2.527 2.542 excite_mean 0.178 0.180 0.177 fracstop 1.000 1.000 1.000 cjmean 3.016 3.015 3.016 libcent 0 179.5 180.0 180.1 libamp 0 96.2 88.0 105.0 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 184.0 185.1 182.6 kozaiamp 180.0 180.0 180.0