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: 13ST102 # Created Sun Apr 27 01:09:42 2025 # Orbit generated from Bernstein formalism # Fitting 47 observations of 47 # Arc: 4.30y # First observation: 2013/08/08 # Last observation: 2017/11/25 Preliminary a, adot, b, bdot, g, gdot: -0.000161 0.022650 -0.000003 0.000633 0.023393 0.000000 # Chi-squared of fit: 43.67 DOF: 88 RMS: 0.17 # Min/Max residuals: -0.51 0.47 # Exact a, adot, b, bdot, g, gdot: 1.562883E-05 2.271617E-02 -5.438797E-07 6.353344E-04 2.355982E-02 2.244286E-03 # Covariance matrix: 1.0349E-13 -3.2980E-14 9.7209E-16 -1.0540E-15 5.8001E-14 -3.5610E-13 -3.2980E-14 1.7944E-13 -1.6968E-15 5.6389E-15 9.7890E-14 2.1971E-12 9.7209E-16 -1.6968E-15 5.2956E-14 -2.0235E-14 7.8873E-17 -2.6234E-14 -1.0540E-15 5.6389E-15 -2.0235E-14 1.8790E-14 2.6285E-15 7.9230E-14 5.8001E-14 9.7890E-14 7.8873E-17 2.6285E-15 1.4696E-13 1.0966E-12 -3.5610E-13 2.1971E-12 -2.6234E-14 7.9230E-14 1.0966E-12 3.0670E-11 # lat0 lon0 xBary yBary zBary JD0 -1.953406 14.266593 0.865997 -0.018071 -0.530617 2456512.957278 # Heliocentric elements and errors Epoch: 2456510.5000 = 2013/08/06 Mean Anomaly: 68.78459 +/- 0.023 Argument of Peri: 231.33488 +/- 0.037 Long of Asc Node: 64.20620 +/- 0.006 Inclination: 2.47817 +/- 0.000 Eccentricity: 0.07933111 +/- 0.0002 Semi-Major Axis: 43.99710077 +/- 0.0032 Time of Perihelion: 2436143.6832 +/- 6.4 Perihelion: 40.50676200 +/- 0.0112 Aphelion: 47.48743953 +/- 0.0113 Period (y) 291.8396 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.83992033 +/- 0.0007 Ecliptic Y 9.74854199 +/- 0.0002 Ecliptic Z -1.44679457 +/- 0.0000 Ecliptic XDOT -0.00040171 +/- 0.0000 Ecliptic YDOT 0.00262238 +/- 0.0000 Ecliptic ZDOT 0.00006504 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.98495340 +/- 0.0007 Geocenter to KBO 42.44514341 +/- 0.0007 # Hcoef: 8.19
The following table shows the complete astrometric record for 13ST102. 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 (13ST102) followed by the observatory code and reference code for the source of the astrometry.
2013 08 08.45650 00 55 33.631 +03 49 27.02 24.3r 13ST102 568 C~36Su 2013 08 08.49535 00 55 33.563 +03 49 26.81 25.1r 13ST102 568 C~36Su 2013 08 31.54126 00 54 32.284 +03 42 19.78 24.8r 13ST102 568 C~36Su 2013 09 01.42715 00 54 29.294 +03 41 59.96 24.7r 13ST102 568 C~36Su 2013 09 01.46598 00 54 29.134 +03 41 58.61 24.7r 13ST102 568 C~36Su 2013 09 05.40666 00 54 15.276 +03 40 26.81 24.4r 13ST102 568 C~36Su 2013 09 05.44546 00 54 15.109 +03 40 25.94 24.7r 13ST102 568 C~36Su 2013 09 29.32731 00 52 38.148 +03 30 02.10 24.0r 13ST102 568 C~36Su 2013 09 29.33220 00 52 38.111 +03 30 01.92 24.7r 13ST102 568 C~36Su 2013 09 29.37646 00 52 37.917 +03 30 00.64 24.5r 13ST102 568 C~36Su 2013 09 29.41553 00 52 37.735 +03 29 59.56 24.2r 13ST102 568 C~36Su 2013 10 03.36136 00 52 20.443 +03 28 11.42 24.1r 13ST102 568 C~36Su 2013 10 03.42199 00 52 20.176 +03 28 09.61 24.1r 13ST102 568 C~36Su 2013 10 04.48370 00 52 15.485 +03 27 39.98 24.1r 13ST102 568 C~36Su 2013 10 04.49405 00 52 15.438 +03 27 40.07 24.4r 13ST102 568 C~36Su 2013 10 04.50281 00 52 15.408 +03 27 40.01 24.5r 13ST102 568 C~36Su 2013 10 04.51901 00 52 15.312 +03 27 39.44 24.6r 13ST102 568 C~36Su 2013 10 09.46918 00 51 53.469 +03 25 24.15 25.0r 13ST102 568 C~36Su 2013 11 27.26350 00 48 53.147 +03 07 54.90 24.5r 13ST102 568 C~36Su 2013 11 27.30798 00 48 53.006 +03 07 54.40 24.6r 13ST102 568 C~36Su 2013 12 05.22182 00 48 36.328 +03 06 32.84 24.5r 13ST102 568 C~36Su 2014 06 25.57715 01 00 16.962 +04 23 07.14 25.3r 13ST102 568 C~36Su 2014 06 26.57603 01 00 18.809 +04 23 16.64 24.6r 13ST102 568 C~36Su 2014 07 23.55193 01 00 36.705 +04 24 00.87 24.2r 13ST102 568 C~36Su 2014 07 27.53111 01 00 34.210 +04 23 35.49 24.5r 13ST102 568 C~36Su 2014 08 22.61348 00 59 46.951 +04 17 46.35 24.1r 13ST102 568 C~36Su 2014 08 28.45040 00 59 29.823 +04 15 50.02 24.1r 13ST102 568 C~36Su 2014 10 02.346712 00 57 14.04 +04 01 16.6 13ST102 T09 C~7X4h 2014 10 02.463462 00 57 13.54 +04 01 13.3 24.5r 13ST102 T09 C~7X4h 2014 10 02.588873 00 57 12.97 +04 01 09.7 13ST102 T09 C~7X4h 2014 10 23.33112 00 55 42.312 +03 51 56.24 24.1r 13ST102 568 C~36Su 2014 10 25.35645 00 55 33.761 +03 51 05.71 24.0r 13ST102 568 C~36Su 2014 10 25.45680 00 55 33.308 +03 51 03.13 24.4r 13ST102 568 C~36Su 2014 10 27.24490 00 55 25.861 +03 50 18.87 25.2r 13ST102 568 C~36Su 2014 10 27.303099 00 55 25.61 +03 50 17.6 13ST102 T14 C~7X4h 2014 10 27.36937 00 55 25.345 +03 50 15.82 24.4r 13ST102 568 C~36Su 2014 10 29.25791 00 55 17.590 +03 49 30.09 24.4r 13ST102 568 C~36Su 2014 11 19.20738 00 54 01.736 +03 42 16.81 24.0r 13ST102 568 C~36Su 2014 11 19.27463 00 54 01.532 +03 42 15.71 24.3r 13ST102 568 C~36Su 2014 11 25.22391 00 53 44.474 +03 40 44.10 24.6r 13ST102 568 C~36Su 2015 01 17.26407 00 53 18.128 +03 40 47.95 24.8r 13ST102 568 C~36Su 2017 07 24.59111 01 14 40.298 +05 57 52.39 24.8w 13ST102 568 C~36Su 2017 11 22.411705 01 08 04.65 +05 17 01.8 13ST102 T14 C~7X4h 2017 11 22.450448 01 08 04.53 +05 17 01.0 13ST102 T14 C~7X4h 2017 11 22.468654 01 08 04.46 +05 17 00.8 13ST102 T14 C~7X4h 2017 11 23.35788 01 08 01.748 +05 16 46.18 24.6w 13ST102 568 C~36Su 2017 11 25.21269 01 07 56.247 +05 16 16.81 24.5w 13ST102 568 C~36Su
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 -0.08 0.00 0.20
2 0.0001 -1.02 0.14 0.20 0.46
3 0.0632 -1012.00 -0.11 -39.14 -0.14
4 0.0656 -1060.94 0.14 -40.12 0.07
5 0.0657 -1063.67 -0.38 -40.43 -0.21
6 0.0765 -1290.48 0.11 -44.88 -0.00
7 0.0766 -1293.12 -0.19 -44.72 0.19
8 0.1420 -2873.17 0.22 -58.33 0.00
9 0.1420 -2873.75 -0.01 -58.28 0.05
10 0.1421 -2876.93 -0.01 -58.34 -0.03
11 0.1423 -2879.86 -0.13 -58.28 0.01
12 0.1531 -3160.50 0.09 -57.75 0.15
13 0.1532 -3164.88 0.10 -57.87 -0.02
14 0.1561 -3241.13 -0.18 -57.99 -0.42
15 0.1562 -3241.75 -0.04 -57.64 -0.07
16 0.1562 -3242.18 0.15 -57.52 0.04
17 0.1562 -3243.73 -0.22 -57.49 0.06
18 0.1698 -3597.76 -0.14 -55.57 0.08
19 0.3034 -6495.53 0.27 24.08 -0.27
20 0.3035 -6497.67 -0.12 24.44 -0.05
21 0.3252 -6759.81 0.13 46.21 0.19
22 0.8792 4691.02 -0.35 228.83 -0.51
23 0.8819 4720.19 0.16 226.96 -0.11
24 0.9558 4984.38 0.06 164.73 -0.09
25 0.9667 4940.15 0.33 155.67 -0.29
26 1.0381 4152.98 -0.00 105.60 -0.05
27 1.0541 3871.63 0.01 96.93 0.01
28 1.1496 1660.10 -0.23 74.33 0.29
29 1.1499 1651.92 0.02 74.17 0.06
30 1.1503 1642.66 -0.21 74.14 -0.04
31 1.2070 177.49 0.28 87.44 -0.35
32 1.2126 39.93 0.47 90.27 0.02
33 1.2129 32.68 0.11 90.51 0.09
34 1.2178 -87.22 -0.08 92.76 0.08
35 1.2179 -91.18 -0.10 93.04 0.26
36 1.2181 -95.53 0.04 92.93 0.03
37 1.2233 -220.25 -0.03 95.60 0.12
38 1.2806 -1434.85 -0.09 134.95 0.04
39 1.2808 -1438.09 0.01 135.12 0.03
40 1.2971 -1709.01 -0.04 149.41 0.07
41 1.4423 -2071.21 -0.02 305.55 -0.03
42 3.9593 18833.04 0.18 549.55 0.11
43 4.2901 12401.53 0.04 534.08 0.02
44 4.2902 12399.56 0.01 534.02 -0.13
45 4.2902 12398.51 -0.13 534.24 0.04
46 4.2927 12355.34 -0.10 536.22 0.01
47 4.2978 12267.88 -0.08 540.50 0.01
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.
13ST102 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.245 44.256 44.235 ecceobj 0.083 0.084 0.083 incobj 2.477 2.477 2.477 qmin 39.820 39.805 39.811 qmax 48.456 48.469 48.396 amean 43.991 44.005 43.981 amin 43.641 43.643 43.631 amax 44.369 44.384 44.351 emean 0.074 0.075 0.074 emin 0.057 0.058 0.057 emax 0.092 0.093 0.091 imean 1.033 1.029 1.033 imin 0.107 0.099 0.105 imax 1.723 1.724 1.722 excite_mean 0.077 0.078 0.076 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 204.8 205.4 204.6 kozaiamp 179.9 180.0 180.0