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: 02GY32 # Created Thu May 24 01:37:12 2012 # Orbit generated from Bernstein formalism # Fitting 14 observations of 17 # Arc: 7.03y # First observation: 2001/03/25 # Last observation: 2008/04/05 Preliminary a, adot, b, bdot, g, gdot: -0.000233 0.031532 -0.000023 0.000969 0.028785 0.000000 # Chi-squared of fit: 17.00 DOF: 22 RMS: 0.19 # Min/Max residuals: -0.36 0.43 # Exact a, adot, b, bdot, g, gdot: 1.868891E-05 3.114281E-02 1.604051E-06 9.571960E-04 2.850471E-02 8.465631E-04 # Covariance matrix: 5.8050E-13 -4.9079E-13 1.1963E-14 -1.3939E-14 -6.6476E-14 -1.8829E-12 -4.9079E-13 7.1808E-13 -1.9341E-14 2.2055E-14 4.2138E-13 2.9739E-12 1.1963E-14 -1.9341E-14 1.9474E-13 -4.4979E-14 -1.2618E-14 -8.2765E-14 -1.3939E-14 2.2055E-14 -4.4979E-14 2.2898E-14 1.3783E-14 9.4305E-14 -6.6476E-14 4.2138E-13 -1.2618E-14 1.3783E-14 6.7110E-13 1.8518E-12 -1.8829E-12 2.9739E-12 -8.2765E-14 9.4305E-14 1.8518E-12 1.2716E-11 # lat0 lon0 xBary yBary zBary JD0 -0.421121 -146.839260 0.471920 -0.006666 -0.883677 2451993.886383 # Heliocentric elements and errors Epoch: 2451990.5000 = 2001/03/22 Mean Anomaly: 9.71360 +/- 0.067 Argument of Peri: 335.30142 +/- 0.081 Long of Asc Node: 225.51653 +/- 0.002 Inclination: 1.80995 +/- 0.000 Eccentricity: 0.08575058 +/- 0.0001 Semi-Major Axis: 39.27236573 +/- 0.0040 Time of Perihelion: 2449564.9693 +/- 16.7 Perihelion: 35.90473758 +/- 0.0048 Aphelion: 42.63999388 +/- 0.0053 Period (y) 246.1154 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -30.36128049 +/- 0.0008 Ecliptic Y -19.27258964 +/- 0.0006 Ecliptic Z -0.25776046 +/- 0.0000 Ecliptic XDOT 0.00155920 +/- 0.0000 Ecliptic YDOT -0.00254604 +/- 0.0000 Ecliptic ZDOT 0.00009153 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.96257089 +/- 0.0008 Geocenter to KBO 35.08192640 +/- 0.0010 # Hcoef: 6.87
The following table shows the complete astrometric record for 02GY32. 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 (02GY32) followed by the observatory code and reference code for the source of the astrometry.
2001 03 25.38564 14 03 10.72 -12 57 45.9 24.3R 02GY32 695 Cj8745 2001 03 25.48509 14 03 10.28 -12 57 43.3 02GY32 695 Cj8745 2002 04 06.19153 14 09 13.26 -13 25 58.8 21.4R 02GY32 807 Cf5154 2002 04 06.33003 14 09 12.56 -13 25 55.5 02GY32 807 Cf5154 2002 04 07.25776 14 09 07.88 -13 25 30.4 02GY32 807 Cf5154 2002 04 11.41567 14 08 46.61 -13 23 38.1 21.6R 02GY32 568 Cf5154 2002 04 11.49657 14 08 46.18 -13 23 35.9 02GY32 568 Cf5154 2002 08 09.01499 14 03 31.29 -12 54 05.2 22.1R 02GY32 807 Ch1599 2002 08 10.01380 14 03 34.04 -12 54 18.6 02GY32 807 Ch1599 2002 08 11.01712 14 03 36.68 -12 54 31.3 02GY32 807 Ch1599 2002 08 12.01394 14 03 39.50 -12 54 44.9 02GY32 807 Ch1599 2003 03 06.49622 14 18 18.65 -14 09 09.4 22.2R 02GY32 662 Ch8265 2003 03 06.53066 14 18 18.53 -14 09 08.4 02GY32 662 Ch8265 2003 04 21.15961 14 14 56.93 -13 51 52.6 20.4R 02GY32 304 Ch8265 2003 04 21.24663 14 14 56.47 -13 51 50.2 02GY32 304 Ch8265 2008 04 05.37669 14 51 38.47 -16 28 43.3 22.8R 02GY32 688 Cy5685 2008 04 05.46970 14 51 38.02 -16 28 41.1 02GY32 688 Cy5685
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 -0.29 0.00 -0.22 2 0.0003 -6.93 -0.05 0.25 0.04 3 1.0316 5556.20 0.00 201.56 -0.05 4 1.0320 5545.46 0.24 201.24 -0.36 5 1.0346 5472.67 -0.06 201.93 -0.02 6 1.0459 5142.41 0.32 203.31 -0.03 7 1.0462 5135.75 0.29 203.27 -0.07 8 1.3734 207.26 -0.24 310.14 -0.02 9 1.3761 249.63 ( 1.71) 311.27 ( 0.04) 10 1.3789 290.24 0.15 312.51 0.20 11 1.3816 333.64 0.10 313.80 0.43 12 1.9469 13930.37 ( -0.36) 392.75 ( 0.65) 13 1.9470 13928.38 ( -0.77) 393.12 ( 1.03) 14 2.0719 10805.64 -0.33 406.45 0.08 15 2.0722 10798.50 -0.15 406.50 0.13 16 7.0308 44689.29 0.16 1400.30 -0.15 17 7.0310 44682.14 -0.13 1400.53 0.05
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.
02GY32 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.199 39.211 39.187 ecceobj 0.084 0.084 0.084 incobj 1.809 1.809 1.809 qmin 35.318 35.341 35.324 qmax 43.698 43.681 43.661 amean 39.460 39.460 39.460 amin 39.410 39.399 39.421 amax 39.509 39.523 39.500 emean 0.093 0.093 0.094 emin 0.081 0.079 0.082 emax 0.106 0.106 0.106 imean 3.556 3.582 3.538 imin 2.633 2.631 2.634 imax 4.254 4.286 4.229 excite_mean 0.112 0.112 0.113 fracstop 1.000 1.000 1.000 cjmean 3.037 3.037 3.037 libcent 0 179.6 179.7 179.2 libamp 0 28.5 35.8 21.9 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 180.5 180.7 180.1 kozaiamp 180.0 180.0 179.9