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: 02GS32 # Created Sun Dec 22 02:08:23 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 33 observations of 33 # Arc: 17.15y # First observation: 2002/04/08 # Last observation: 2019/06/02 # Chi-squared of fit: 51.02 DOF: 60 RMS: 0.22 # Min/Max residuals: -0.54 0.69 # Exact a, adot, b, bdot, g, gdot: 1.418843E-05 2.927354E-02 6.911875E-07 1.847162E-03 2.720116E-02 7.973272E-04 # Covariance matrix: 4.5381E-13 -5.2070E-14 1.0143E-15 -2.5727E-15 3.1277E-13 -8.1238E-14 -5.2070E-14 1.7498E-14 -1.3972E-15 1.0742E-15 -2.2007E-14 3.1666E-14 1.0143E-15 -1.3972E-15 1.2921E-13 -8.6234E-15 -1.3438E-15 -2.6734E-15 -2.5727E-15 1.0742E-15 -8.6234E-15 9.0224E-16 -1.1358E-15 2.0427E-15 3.1277E-13 -2.2007E-14 -1.3438E-15 -1.1358E-15 3.3788E-13 -4.0011E-14 -8.1238E-14 3.1666E-14 -2.6734E-15 2.0427E-15 -4.0011E-14 6.0180E-14 # lat0 lon0 xBary yBary zBary JD0 -2.448877 -132.510437 0.488124 -0.037518 -0.876206 2452372.647603 # Heliocentric elements and errors Epoch: 2452372.5000 = 2002/04/08 Mean Anomaly: 7.89634 +/- 0.005 Argument of Peri: 316.47785 +/- 0.006 Long of Asc Node: 260.35317 +/- 0.000 Inclination: 4.31530 +/- 0.000 Eccentricity: 0.10696244 +/- 0.0001 Semi-Major Axis: 42.08621466 +/- 0.0044 Time of Perihelion: 2450185.0820 +/- 1.4 Perihelion: 37.58457034 +/- 0.0050 Aphelion: 46.58785898 +/- 0.0057 Period (y) 273.0348 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -25.77040711 +/- 0.0005 Ecliptic Y -27.38685255 +/- 0.0006 Ecliptic Z -1.57080428 +/- 0.0000 Ecliptic XDOT 0.00210407 +/- 0.0000 Ecliptic YDOT -0.00205732 +/- 0.0000 Ecliptic ZDOT 0.00018254 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.63801569 +/- 0.0006 Geocenter to KBO 36.76314811 +/- 0.0008 # Hcoef: 7.27
The following table shows the complete astrometric record for 02GS32. 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 (02GS32) followed by the observatory code and reference code for the source of the astrometry.
2002 04 08.14686 14 57 10.98 -19 23 59.2 22.6R 02GS32 807 Cf5154 2002 04 09.26285 14 57 05.81 -19 23 38.4 02GS32 807 Cf5154 2002 04 09.32608 14 57 05.54 -19 23 37.8 02GS32 807 Cf5154 2002 08 09.05873 14 50 14.41 -18 48 32.8 22.8R 02GS32 807 Cg3254 2002 08 10.05638 14 50 15.77 -18 48 33.6 02GS32 807 Cg3254 2002 08 11.06067 14 50 17.24 -18 48 34.8 02GS32 807 Cg3254 2003 06 02.36154 14 59 26.91 -19 26 02.8 23.2R 02GS32 568 Ci2679 2003 06 02.42876 14 59 26.59 -19 26 01.2 02GS32 568 Ci2679 2003 07 06.28921 14 57 21.73 -19 15 17.3 23.0R 02GS32 568 Ci2679 2003 07 06.37190 14 57 21.56 -19 15 16.0 02GS32 568 Ci2679 2004 06 09.30961 15 05 49.29 -19 45 03.8 23.0R 02GS32 568 Ck9027 2004 06 09.37749 15 05 48.98 -19 45 02.5 02GS32 568 Ck9027 2013 05 08.26404 16 12 16.276 -22 20 58.67 24.1r 02GS32 807 C~2KVM 2013 05 08.26404 16 12 16.25 -22 20 58.4 23.4r 02GS32 W84 C~2J8o 2013 05 08.33315 16 12 15.880 -22 20 57.50 02GS32 807 C~2KVM 2013 05 08.33315 16 12 15.88 -22 20 57.5 02GS32 W84 C~2J8o 2013 05 08.38256 16 12 15.606 -22 20 56.51 02GS32 807 C~2KVM 2013 05 08.38256 16 12 15.62 -22 20 56.8 02GS32 W84 C~2J8o 2014 05 30.24781 16 17 23.69 -22 26 02.9 22.1R 02GS32 695 C~1LJ7 2014 05 30.37785 16 17 22.92 -22 26 00.6 02GS32 695 C~1LJ7 2014 05 30.41523 16 17 22.69 -22 25 59.7 02GS32 695 C~1LJ7 2019 06 02.05534 16 52 39.73 -23 00 19.0 23.8 02GS32 W84 C~5i0y 2019 06 02.06393 16 52 39.68 -23 00 19.0 23.6 02GS32 W84 C~5i0y 2019 06 02.06564 16 52 39.69 -23 00 19.0 23.8 02GS32 W84 C~5i0y 2019 06 02.07082 16 52 39.65 -23 00 18.9 23.7 02GS32 W84 C~5i0y 2019 06 02.13556 16 52 39.29 -23 00 18.2 23.8 02GS32 W84 C~5i0y 2019 06 02.13901 16 52 39.26 -23 00 18.1 23.7 02GS32 W84 C~5i0y 2019 06 02.14415 16 52 39.23 -23 00 18.0 23.6 02GS32 W84 C~5i0y 2019 06 02.15617 16 52 39.18 -23 00 17.9 23.8 02GS32 W84 C~5i0y 2019 06 02.17165 16 52 39.08 -23 00 17.9 23.7 02GS32 W84 C~5i0y 2019 06 02.17682 16 52 39.06 -23 00 17.8 23.8 02GS32 W84 C~5i0y 2019 06 02.17854 16 52 39.05 -23 00 17.8 23.6 02GS32 W84 C~5i0y 2019 06 02.18891 16 52 38.98 -23 00 17.8 23.8 02GS32 W84 C~5i0y
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 0.62 0.00 -0.09
2 0.0031 0.00 -0.28 0.00 0.44
3 0.0032 0.00 0.13 0.00 -0.13
4 0.3365 0.00 0.05 0.00 -0.32
5 0.3392 0.00 0.17 0.00 -0.27
6 0.3420 0.00 0.22 0.00 -0.14
7 1.1505 0.00 -0.31 0.00 0.20
8 1.1507 0.00 -0.19 0.00 0.27
9 1.2434 0.00 -0.54 0.00 0.21
10 1.2436 0.00 -0.08 0.00 0.33
11 2.1716 0.00 0.08 0.00 -0.15
12 2.1717 0.00 0.10 0.00 -0.28
13 11.0831 0.00 -0.08 0.00 -0.01
14 11.0831 0.00 0.31 0.00 -0.28
15 11.0833 0.00 -0.12 0.00 -0.08
16 11.0833 0.00 -0.12 0.00 -0.08
17 11.0835 0.00 -0.09 0.00 -0.08
18 11.0835 0.00 -0.30 0.00 0.21
19 12.1426 0.00 0.69 0.00 -0.35
20 12.1430 0.00 0.13 0.00 0.03
21 12.1431 0.00 -0.17 0.00 0.37
22 17.1496 0.00 -0.15 0.00 0.02
23 17.1497 0.00 -0.17 0.00 -0.07
24 17.1497 0.00 0.12 0.00 -0.08
25 17.1497 0.00 -0.04 0.00 -0.03
26 17.1499 0.00 0.04 0.00 0.04
27 17.1499 0.00 -0.12 0.00 0.10
28 17.1499 0.00 -0.13 0.00 0.15
29 17.1499 0.00 0.14 0.00 0.13
30 17.1500 0.00 -0.05 0.00 -0.02
31 17.1500 0.00 0.09 0.00 0.03
32 17.1500 0.00 0.09 0.00 0.01
33 17.1500 0.00 -0.08 0.00 -0.09
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.
02GS32 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 41.936 41.936 41.936 ecceobj 0.103 0.103 0.103 incobj 4.312 4.312 4.312 qmin 36.613 36.336 36.613 qmax 48.386 48.800 48.386 amean 42.328 42.328 42.328 amin 41.898 41.889 41.903 amax 42.791 42.790 42.779 emean 0.092 0.101 0.084 emin 0.039 0.039 0.039 emax 0.134 0.141 0.134 imean 7.116 6.858 6.857 imin 4.964 4.954 4.652 imax 9.085 9.079 9.091 excite_mean 0.157 0.159 0.148 fracstop 1.000 1.000 1.000 cjmean 3.052 3.052 3.055 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 170.5 215.5 139.2 kozaiamp 180.0 179.8 180.0