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: 02GB32
# Created Sun Dec 22 02:08:22 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 21.19y
# First observation: 2002/04/07
# Last observation: 2023/06/15
# Chi-squared of fit: 298.04 DOF: 66 RMS: 0.51
# Min/Max residuals: -1.63 1.45
# Exact a, adot, b, bdot, g, gdot:
2.075670E-05 3.645436E-02 3.724211E-06 9.102056E-03 2.764517E-02 -8.268440E-03
# Covariance matrix:
1.0340E-13 -1.2553E-14 4.8175E-15 -1.9925E-15 3.0131E-14 -1.0068E-14
-1.2553E-14 4.3546E-15 -2.0193E-15 9.2755E-16 4.8891E-15 3.9241E-15
4.8175E-15 -2.0193E-15 8.0819E-14 -5.9925E-15 1.0839E-15 -2.3750E-15
-1.9925E-15 9.2755E-16 -5.9925E-15 8.6842E-16 3.4764E-16 1.0352E-15
3.0131E-14 4.8891E-15 1.0839E-15 3.4764E-16 1.5775E-13 -4.8189E-15
-1.0068E-14 3.9241E-15 -2.3750E-15 1.0352E-15 -4.8189E-15 4.7939E-15
# lat0 lon0 xBary yBary zBary JD0
2.553805 -173.357971 -0.186013 0.043891 -0.984915 2452371.564483
# Heliocentric elements and errors
Epoch: 2452372.5000 = 2002/04/08
Mean Anomaly: 358.57729 +/- 0.001
Argument of Peri: 36.76679 +/- 0.001
Long of Asc Node: 177.03342 +/- 0.000
Inclination: 14.18949 +/- 0.000
Eccentricity: 0.83001310 +/- 0.0001
Semi-Major Axis: 208.11259009 +/- 0.2805
Time of Perihelion: 2456706.2095 +/- 2208.7
Perihelion: 35.37641367 +/- 0.0503
Aphelion: 380.84876651 +/- 0.5137
Period (y) 3002.3114 +/- 6.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.85115164 +/- 0.0005
Ecliptic Y -4.47381683 +/- 0.0001
Ecliptic Z 1.61187696 +/- 0.0000
Ecliptic XDOT 0.00126168 +/- 0.0000
Ecliptic YDOT -0.00348814 +/- 0.0000
Ecliptic ZDOT 0.00086426 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.15686803 +/- 0.0005
Geocenter to KBO 36.17287799 +/- 0.0005
# Hcoef: 7.79
The following table shows the complete astrometric record for 02GB32. 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 (02GB32) followed by the observatory code and reference code for the source of the astrometry.
2002 04 07.06374 12 28 25.94 -00 17 28.4 21.9R 02GB32 807 Cf5154 2002 04 07.11828 12 28 25.67 -00 17 26.5 02GB32 807 Cf5154 2002 04 08.01056 12 28 21.61 -00 16 56.4 02GB32 807 Cf5154 2002 04 11.27296 12 28 06.98 -00 15 06.9 22.0R 02GB32 695 Cg5851 2002 04 11.35333 12 28 06.64 -00 15 04.0 02GB32 695 Cg5851 2002 04 11.35481 12 28 06.62 -00 15 04.3 22.9R 02GB32 568 Cf5154 2002 04 11.43654 12 28 06.24 -00 15 01.6 02GB32 568 Cf5154 2002 05 08.31705 12 26 21.20 -00 02 10.7 22.6R 02GB32 568 Cf7381 2002 05 08.40233 12 26 20.91 -00 02 08.2 02GB32 568 Cf7381 2003 04 01.35897 12 37 27.82 -00 41 53.8 22.9R 02GB32 695 Ck4262 2003 04 01.42894 12 37 27.50 -00 41 51.8 02GB32 695 Ck4262 2003 05 30.00250 12 33 56.85 -00 16 32.9 22.2R 02GB32 807 Ck4262 2003 05 30.09406 12 33 56.69 -00 16 31.9 02GB32 807 Ck4262 2003 07 08.29665 12 34 02.29 -00 17 04.3 24.4R 02GB32 568 Ck4262 2004 03 16.32025 12 47 20.79 -01 12 17.1 23.2R 02GB32 695 Ck4262 2004 03 16.41982 12 47 20.33 -01 12 13.6 02GB32 695 Ck4262 2008 05 13.61073 13 18 57.35 -02 07 32.1 24.4R 02GB32 250 S~06AU 2008 05 13.61698 13 18 57.33 -02 07 32.0 02GB32 250 S~06AU 2008 05 13.62393 13 18 57.31 -02 07 31.8 02GB32 250 S~06AU 2008 05 13.63018 13 18 57.28 -02 07 31.6 02GB32 250 S~06AU 2008 06 08.03440 13 17 42.52 -02 00 46.2 02GB32 807 Cz1369 2008 06 08.08037 13 17 42.43 -02 00 46.2 02GB32 807 Cz1369 2008 06 09.03341 13 17 40.65 -02 00 37.6 02GB32 807 Cz1369 2015 03 23.37284 14 28 23.92 -05 00 08.5 23.1R 02GB32 695 C~1Q3C 2015 03 23.43591 14 28 23.69 -05 00 06.4 02GB32 695 C~1Q3C 2015 03 23.49853 14 28 23.46 -05 00 04.4 02GB32 695 C~1Q3C 2016 05 29.20184 14 32 42.697 -04 47 36.87 23.0R 02GB32 G37 C~2bkS 2016 05 29.25358 14 32 42.476 -04 47 36.11 02GB32 G37 C~2bkS 2016 05 29.32093 14 32 42.184 -04 47 34.85 02GB32 G37 C~2bkS 2016 06 08.19112 14 32 03.663 -04 45 18.54 23.2R 02GB32 G37 C~2bkS 2016 06 08.22641 14 32 03.543 -04 45 17.96 02GB32 G37 C~2bkS 2016 06 08.26503 14 32 03.395 -04 45 17.85 02GB32 G37 C~2bkS 2017 06 17.968015 14 40 55.28 -05 02 52.7 23.6r 02GB32 950 C~2PjS 2017 06 17.973556 14 40 55.26 -05 02 52.5 23.7r 02GB32 950 C~2PjS 2023 06 15.201380 15 36 21.053 -06 42 00.06 23.7G 02GB32 G37 C~6r1w 2023 06 15.245300 15 36 20.836 -06 41 59.49 02GB32 G37 C~6r1w
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 0.14 0.00 0.27
2 0.0001 0.00 -0.13 0.00 0.31
3 0.0026 0.00 -0.43 0.00 0.04
4 0.0115 0.00 0.21 0.00 0.18
5 0.0117 0.00 0.58 0.00 0.41
6 0.0117 0.00 0.22 0.00 0.01
7 0.0120 0.00 0.10 0.00 -0.00
8 0.0856 0.00 0.40 0.00 0.33
9 0.0858 0.00 0.23 0.00 0.86
10 0.9837 0.00 -0.10 0.00 0.05
11 0.9839 0.00 0.06 0.00 -0.42
12 1.1443 0.00 -0.26 0.00 0.36
13 1.1445 0.00 -0.21 0.00 0.30
14 1.2518 0.00 -0.03 0.00 -0.68
15 1.9418 0.00 0.14 0.00 0.16
16 1.9421 0.00 -0.05 0.00 0.12
17 6.1014 0.00 -0.63 0.00 -1.58
18 6.1014 0.00 -0.57 0.00 -1.63
19 6.1015 0.00 -0.47 0.00 -1.59
20 6.1015 0.00 -0.56 0.00 -1.53
21 6.1710 0.00 0.04 0.00 0.79
22 6.1712 0.00 0.08 0.00 0.41
23 6.1738 0.00 0.32 0.00 1.45
24 12.9591 0.00 0.30 0.00 0.07
25 12.9593 0.00 0.33 0.00 0.10
26 12.9594 0.00 0.34 0.00 0.04
27 14.1441 0.00 0.07 0.00 0.26
28 14.1443 0.00 0.07 0.00 0.17
29 14.1444 0.00 0.01 0.00 0.31
30 14.1715 0.00 -0.10 0.00 0.13
31 14.1716 0.00 0.05 0.00 0.32
32 14.1717 0.00 -0.05 0.00 -0.00
33 15.1975 0.00 0.16 0.00 -0.15
34 15.1976 0.00 0.12 0.00 0.02
35 21.1886 0.00 0.00 0.00 0.01
36 21.1887 0.00 -0.39 0.00 0.23
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.
02GB32 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 200.344 200.339 200.349 ecceobj 0.824 0.824 0.824 incobj 14.221 14.221 14.221 qmin 33.083 33.117 32.924 qmax 417.259 410.992 454.341 amean 200.666 200.253 217.373 amin 187.168 183.867 200.349 amax 226.248 223.137 244.654 emean 0.825 0.825 0.838 emin 0.810 0.806 0.820 emax 0.845 0.842 0.858 imean 12.657 12.767 12.685 imin 12.057 12.204 12.146 imax 14.006 14.006 14.004 excite_mean 0.854 0.854 0.867 fracstop 1.000 1.000 1.000 cjmean 2.994 2.994 2.995 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 84.7 79.2 75.4 kozaiamp 48.6 46.2 38.4