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: 02GH32 # Created Thu May 24 01:37:11 2012 # Orbit generated from Bernstein formalism # Fitting 34 observations of 39 # Arc: 8.98y # First observation: 2002/04/08 # Last observation: 2011/03/31 Preliminary a, adot, b, bdot, g, gdot: 0.000024 0.020361 0.000014 0.010178 0.023930 0.000000 # Chi-squared of fit: 56.87 DOF: 62 RMS: 0.23 # Min/Max residuals: -0.63 0.48 # Exact a, adot, b, bdot, g, gdot: 1.341455E-05 2.048256E-02 8.383163E-06 1.024970E-02 2.403530E-02 2.175959E-03 # Covariance matrix: 3.4708E-13 -7.9782E-14 4.6520E-15 -1.7633E-14 3.4274E-13 -1.9300E-13 -7.9782E-14 1.2336E-13 -2.1939E-14 5.7093E-14 -2.7469E-14 6.1256E-13 4.6520E-15 -2.1939E-14 6.4167E-14 -1.9165E-14 -6.3418E-15 -1.1870E-13 -1.7633E-14 5.7093E-14 -1.9165E-14 3.2448E-14 9.1192E-15 3.0494E-13 3.4274E-13 -2.7469E-14 -6.3418E-15 9.1192E-15 4.4220E-13 9.2748E-14 -1.9300E-13 6.1256E-13 -1.1870E-13 3.0494E-13 9.2748E-14 3.2690E-12 # lat0 lon0 xBary yBary zBary JD0 -2.910349 -144.637473 0.291040 -0.048829 -0.959377 2452372.765463 # Heliocentric elements and errors Epoch: 2452370.5000 = 2002/04/06 Mean Anomaly: 93.29969 +/- 0.075 Argument of Peri: 249.85481 +/- 0.059 Long of Asc Node: 220.62734 +/- 0.000 Inclination: 26.73058 +/- 0.000 Eccentricity: 0.09294607 +/- 0.0001 Semi-Major Axis: 41.98041553 +/- 0.0050 Time of Perihelion: 2426622.3375 +/- 20.1 Perihelion: 38.07850100 +/- 0.0054 Aphelion: 45.88233007 +/- 0.0062 Period (y) 272.0059 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -34.83657142 +/- 0.0009 Ecliptic Y -24.36158564 +/- 0.0006 Ecliptic Z -2.11210569 +/- 0.0001 Ecliptic XDOT 0.00109173 +/- 0.0000 Ecliptic YDOT -0.00208166 +/- 0.0000 Ecliptic ZDOT 0.00115367 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.56212582 +/- 0.0009 Geocenter to KBO 41.60546599 +/- 0.0012 # Hcoef: 5.37
The following table shows the complete astrometric record for 02GH32. 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 (02GH32) followed by the observatory code and reference code for the source of the astrometry.
2002 04 08.26472 14 08 14.34 -16 03 05.0 20.7R 02GH32 807 Cf5154 2002 04 09.21801 14 08 10.10 -16 02 38.3 02GH32 807 Cf5154 2002 04 09.28159 14 08 09.84 -16 02 36.7 02GH32 807 Cf5154 2002 04 09.39501 14 08 09.28 -16 02 33.6 02GH32 807 Cf5154 2002 06 06.33293 14 04 02.80 -15 34 22.7 02GH32 568 Cf8972 2002 06 06.33587 14 04 02.78 -15 34 22.6 02GH32 568 Cf8972 2002 06 06.34081 14 04 02.78 -15 34 22.4 02GH32 568 Cf8972 2002 06 06.34624 14 04 02.75 -15 34 22.4 02GH32 568 Cf8972 2002 06 06.34998 14 04 02.74 -15 34 22.2 02GH32 568 Cf8972 2002 06 06.35299 14 04 02.74 -15 34 22.1 02GH32 568 Cf8972 2002 06 06.35594 14 04 02.74 -15 34 22.0 02GH32 568 Cf8972 2002 06 06.36088 14 04 02.71 -15 34 21.8 02GH32 568 Cf8972 2002 06 06.36632 14 04 02.69 -15 34 21.7 02GH32 568 Cf8972 2002 06 06.37006 14 04 02.68 -15 34 21.7 02GH32 568 Cf8972 2002 06 07.35895 14 03 59.58 -15 33 56.4 02GH32 568 Cf8972 2002 06 07.36191 14 03 59.57 -15 33 56.3 02GH32 568 Cf8972 2002 06 07.36685 14 03 59.55 -15 33 56.0 02GH32 568 Cf8972 2002 06 07.37229 14 03 59.53 -15 33 56.1 02GH32 568 Cf8972 2002 06 07.37603 14 03 59.52 -15 33 55.8 02GH32 568 Cf8972 2002 06 11.19237 14 03 48.18 -15 32 21.7 22.0R 02GH32 688 Cf7381 2002 06 11.26906 14 03 47.94 -15 32 19.6 02GH32 688 Cf7381 2003 05 30.03531 14 09 51.86 -15 28 30.0 21.2R 02GH32 807 Ci2129 2003 05 30.12813 14 09 51.51 -15 28 27.3 02GH32 807 Ci2129 2003 05 31.08532 14 09 48.00 -15 28 01.6 02GH32 807 Ci2129 2004 04 22.38818 14 17 55.42 -15 36 30.5 02GH32 568 Ck9583 2004 04 22.45251 14 17 55.10 -15 36 28.8 02GH32 568 Ck9583 2004 05 20.18606 14 15 50.16 -15 23 00.0 22.4R 02GH32 688 Ck8098 2004 05 20.26698 14 15 49.84 -15 22 57.7 02GH32 688 Ck8098 2009 03 31.22063 14 45 59.60 -14 50 00.4 20.2R 02GH32 950 C~08wZ 2009 03 31.22811 14 45 59.58 -14 50 01.0 22.0V 02GH32 950 C~08wZ 2009 03 31.23522 14 45 59.59 -14 50 01.0 21.9V 02GH32 950 C~08wZ 2009 03 31.24229 14 45 59.63 -14 50 01.6 21.8V 02GH32 950 C~08wZ 2009 03 31.24980 14 45 59.60 -14 50 00.7 20.3R 02GH32 950 C~08wZ 2011 03 31.17361 14 56 20.46 -14 24 38.1 22.5R 02GH32 304 C~0VlV 2011 03 31.17787 14 56 20.45 -14 24 37.9 02GH32 304 C~0VlV 2011 03 31.26213 14 56 20.14 -14 24 36.1 02GH32 304 C~0VlV 2011 03 31.26639 14 56 20.12 -14 24 36.1 02GH32 304 C~0VlV 2011 03 31.32838 14 56 19.92 -14 24 34.8 02GH32 304 C~0VlV 2011 03 31.33265 14 56 19.89 -14 24 34.5 02GH32 304 C~0VlV
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 -0.34 2 0.0026 -66.55 -0.20 4.50 -0.13 3 0.0028 -70.62 0.25 4.74 -0.15 4 0.0031 -79.26 -0.37 4.93 -0.46 5 0.1617 -4000.09 -0.05 385.83 0.06 6 0.1617 -4000.39 -0.20 385.83 0.03 7 0.1617 -4000.46 -0.01 386.02 0.18 8 0.1618 -4000.87 -0.13 385.87 -0.01 9 0.1618 -4001.07 -0.13 386.01 0.09 10 0.1618 -4001.11 -0.01 386.10 0.16 11 0.1618 -4001.14 0.12 386.19 0.23 12 0.1618 -4001.62 -0.10 386.23 0.23 13 0.1618 -4001.92 -0.12 386.23 0.19 14 0.1618 -4002.06 -0.05 386.18 0.11 15 0.1645 -4052.82 0.00 394.62 0.24 16 0.1645 -4052.99 -0.02 394.67 0.26 17 0.1646 -4053.37 -0.14 394.85 0.41 18 0.1646 -4053.61 -0.09 394.66 0.17 19 0.1646 -4053.85 -0.13 394.89 0.37 20 0.1750 -4240.11 0.48 427.20 0.22 21 0.1752 -4244.09 0.18 427.99 0.36 22 1.1411 627.12 0.11 2427.92 -0.63 23 1.1413 621.45 0.05 2428.77 -0.44 24 1.1439 565.02 0.04 2435.94 -0.49 25 2.0400 7384.37 0.41 4291.22 -0.25 26 2.0402 7379.44 0.24 4291.32 -0.49 27 2.1161 5405.81 -0.14 4462.77 -0.22 28 2.1164 5400.68 0.18 4463.41 -0.09 29 6.9787 29934.30 ( 5.14) 14649.18 ( 0.62) 30 6.9787 29934.20 ( 5.49) 14648.51 ( -0.09) 31 6.9787 29934.34 ( 6.06) 14648.55 ( -0.09) 32 6.9787 29935.08 ( 7.24) 14648.15 ( -0.54) 33 6.9787 29934.39 ( 7.00) 14648.89 ( 0.15) 34 8.9772 38395.21 -0.10 18861.07 0.12 35 8.9772 38395.01 -0.05 18861.22 0.24 36 8.9774 38389.99 -0.11 18861.63 0.07 37 8.9774 38389.70 -0.14 18861.54 -0.04 38 8.9776 38386.43 0.25 18861.94 -0.07 39 8.9776 38385.91 -0.02 18862.11 0.06
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.
02GH32 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.795 41.810 41.780 ecceobj 0.091 0.091 0.091 incobj 26.774 26.774 26.774 qmin 38.014 38.017 38.013 qmax 46.111 46.139 46.084 amean 42.050 42.065 42.036 amin 42.021 42.035 42.005 amax 42.092 42.107 42.075 emean 0.086 0.086 0.087 emin 0.077 0.076 0.077 emax 0.096 0.097 0.096 imean 27.573 27.574 27.572 imin 27.316 27.311 27.320 imax 27.858 27.865 27.858 excite_mean 0.471 0.471 0.471 fracstop 1.000 1.000 1.000 cjmean 2.804 2.804 2.803 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 184.2 184.6 183.7 kozaiamp 180.0 179.9 180.0