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: 13GW141 # Created Sun Dec 22 02:09:27 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 101 observations of 101 # Arc: 12.30y # First observation: 2012/02/20 # Last observation: 2024/06/07 # Chi-squared of fit: 71.89 DOF: 196 RMS: 0.15 # Min/Max residuals: -0.47 0.80 # Exact a, adot, b, bdot, g, gdot: 1.979962E-05 4.306604E-02 -1.176456E-05 -2.327998E-02 3.427105E-02 -2.479625E-02 # Covariance matrix: 1.4837E-13 -3.6775E-14 -5.5559E-14 1.7599E-14 5.7561E-15 -3.4169E-14 -3.6775E-14 1.1314E-14 1.7699E-14 -5.5364E-15 5.2312E-15 1.0587E-14 -5.5559E-14 1.7699E-14 8.8204E-14 -1.8755E-14 1.4918E-15 2.0384E-14 1.7599E-14 -5.5364E-15 -1.8755E-14 4.8658E-15 -1.1944E-17 -6.4463E-15 5.7561E-15 5.2312E-15 1.4918E-15 -1.1944E-17 4.6408E-14 -1.0419E-15 -3.4169E-14 1.0587E-14 2.0384E-14 -6.4463E-15 -1.0419E-15 1.2491E-14 # lat0 lon0 xBary yBary zBary JD0 15.686839 178.602417 0.456070 0.237789 -0.846661 2455977.949186 # Heliocentric elements and errors Epoch: 2455978.5000 = 2012/02/21 Mean Anomaly: 359.58668 +/- 0.000 Argument of Peri: 206.44646 +/- 0.001 Long of Asc Node: 23.41353 +/- 0.000 Inclination: 32.11071 +/- 0.000 Eccentricity: 0.95770541 +/- 0.0000 Semi-Major Axis: 556.52003547 +/- 0.3655 Time of Perihelion: 2461484.0817 +/- 4718.7 Perihelion: 23.53778586 +/- 0.0217 Aphelion: 1089.50228509 +/- 0.7157 Period (y) 13128.9323 +/- 12.93 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -28.94910273 +/- 0.0002 Ecliptic Y 1.16353552 +/- 0.0000 Ecliptic Z 7.88909894 +/- 0.0001 Ecliptic XDOT 0.00131529 +/- 0.0000 Ecliptic YDOT -0.00346949 +/- 0.0000 Ecliptic ZDOT -0.00232603 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.02769610 +/- 0.0002 Geocenter to KBO 29.17950771 +/- 0.0002 # Hcoef: 8.15
The following table shows the complete astrometric record for 13GW141. 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 (13GW141) followed by the observatory code and reference code for the source of the astrometry.
2012 02 20.44842 12 20 25.543 +14 54 58.87 22.4G 13GW141 F51 C~346E 2012 02 20.46368 12 20 25.482 +14 54 59.62 23.0G 13GW141 F51 C~346E 2012 02 20.47892 12 20 25.388 +14 55 00.39 22.5G 13GW141 F51 C~346E 2013 03 03.54377 12 26 27.692 +12 44 18.11 22.8G 13GW141 F51 C~346E 2013 03 08.51429 12 25 57.266 +12 47 07.46 22.1G 13GW141 F51 C~346E 2013 04 06.33777 12 22 47.240 +13 00 07.87 22.7G 13GW141 F51 C~346E 2013 04 06.35153 12 22 47.153 +13 00 08.19 22.5G 13GW141 F51 C~346E 2014 05 19.32589 12 26 10.798 +10 37 06.80 22.0G 13GW141 F51 C~346E 2014 05 19.33774 12 26 10.752 +10 37 06.50 21.9G 13GW141 F51 C~346E 2014 05 19.34969 12 26 10.705 +10 37 06.26 22.6G 13GW141 F51 C~346E 2014 05 19.36178 12 26 10.650 +10 37 06.09 22.9G 13GW141 F51 C~346E 2014 05 29.32025 12 25 38.261 +10 33 42.10 22.8G 13GW141 F51 C~346E 2014 05 29.34396 12 25 38.267 +10 33 41.71 22.7G 13GW141 F51 C~346E 2014 05 29.35581 12 25 38.190 +10 33 40.95 22.2G 13GW141 F51 C~346E 2014 12 29.61244 12 44 02.983 +07 23 38.96 22.3G 13GW141 F51 C~346E 2014 12 29.62538 12 44 03.002 +07 23 38.96 23.2G 13GW141 F51 C~346E 2014 12 29.63846 12 44 03.037 +07 23 39.01 22.6G 13GW141 F51 C~346E 2014 12 29.65164 12 44 03.055 +07 23 38.96 22.8G 13GW141 F51 C~346E 2015 01 19.58393 12 44 11.094 +07 26 07.10 22.0G 13GW141 F51 C~346E 2015 01 19.59750 12 44 11.097 +07 26 07.28 22.7G 13GW141 F51 C~346E 2015 01 19.61099 12 44 11.079 +07 26 07.13 22.0G 13GW141 F51 C~346E 2015 01 19.62452 12 44 11.053 +07 26 07.40 22.0G 13GW141 F51 C~346E 2015 02 19.51173 12 42 37.263 +07 38 32.40 22.9G 13GW141 F51 C~346E 2015 02 19.52417 12 42 37.188 +07 38 32.57 22.4G 13GW141 F51 C~346E 2015 02 19.53663 12 42 37.135 +07 38 32.93 22.7G 13GW141 F51 C~346E 2015 02 19.54912 12 42 37.075 +07 38 33.26 23.0G 13GW141 F51 C~346E 2015 03 24.42751 12 39 18.639 +07 55 33.68 21.7G 13GW141 F51 C~346E 2015 05 21.26731 12 33 32.315 +08 05 17.56 22.4G 13GW141 F51 C~346E 2015 05 21.28160 12 33 32.264 +08 05 17.33 22.0G 13GW141 F51 C~346E 2015 05 21.29597 12 33 32.216 +08 05 17.01 22.4G 13GW141 F51 C~346E 2015 05 21.31027 12 33 32.148 +08 05 16.87 22.2G 13GW141 F51 C~346E 2016 02 02.57108 12 51 35.218 +04 50 57.06 22.2G 13GW141 F51 C~346E 2016 02 29.54474 12 49 41.597 +05 02 13.73 22.5G 13GW141 F51 C~346E 2016 03 07.43903 12 49 01.205 +05 05 38.86 22.2G 13GW141 F51 C~346E 2016 03 07.45255 12 49 01.104 +05 05 39.29 23.0G 13GW141 F51 C~346E 2016 03 07.46616 12 49 01.020 +05 05 39.83 22.2G 13GW141 F51 C~346E 2016 03 07.47980 12 49 00.953 +05 05 40.13 22.3G 13GW141 F51 C~346E 2016 03 14.49312 12 48 16.488 +05 09 10.17 23.1G 13GW141 F51 C~346E 2016 03 14.50527 12 48 16.408 +05 09 11.03 22.2G 13GW141 F51 C~346E 2016 03 14.51749 12 48 16.348 +05 09 11.35 22.3G 13GW141 F51 C~346E 2016 03 14.52958 12 48 16.254 +05 09 11.54 22.0G 13GW141 F51 C~346E 2016 04 03.40689 12 45 59.944 +05 18 22.19 22.0G 13GW141 F51 C~346E 2016 04 03.41870 12 45 59.827 +05 18 22.22 22.2G 13GW141 F51 C~346E 2016 04 03.43055 12 45 59.756 +05 18 22.44 22.4G 13GW141 F51 C~346E 2016 04 29.42886 12 43 06.282 +05 25 46.79 22.2G 13GW141 F51 C~346E 2017 03 05.51696 12 57 29.040 +02 15 03.15 21.9G 13GW141 F51 C~346E 2017 03 05.54241 12 57 28.867 +02 15 04.12 22.3G 13GW141 F51 C~346E 2017 03 05.55516 12 57 28.803 +02 15 04.28 22.6G 13GW141 F51 C~346E 2017 03 20.34535 12 55 54.263 +02 21 55.95 22.2G 13GW141 F51 C~346E 2017 03 20.35720 12 55 54.194 +02 21 56.35 22.9G 13GW141 F51 C~346E 2017 03 20.36908 12 55 54.125 +02 21 56.45 22.2G 13GW141 F51 C~346E 2017 03 20.38092 12 55 54.028 +02 21 56.82 22.8G 13GW141 F51 C~346E 2017 03 20.38601 12 55 53.981 +02 21 56.83 23.2G 13GW141 F51 C~346E 2017 03 20.40016 12 55 53.894 +02 21 57.49 22.4G 13GW141 F51 C~346E 2017 03 20.41431 12 55 53.782 +02 21 57.83 22.2G 13GW141 F51 C~346E 2017 03 20.42848 12 55 53.687 +02 21 58.30 22.3G 13GW141 F51 C~346E 2017 03 29.40100 12 54 51.220 +02 26 03.11 22.0G 13GW141 F51 C~346E 2017 03 29.41330 12 54 51.148 +02 26 03.44 22.2G 13GW141 F51 C~346E 2017 03 29.42685 12 54 51.052 +02 26 03.80 22.5G 13GW141 F51 C~346E 2017 03 29.43917 12 54 50.946 +02 26 04.37 22.3G 13GW141 F51 C~346E 2017 04 03.46747 12 54 15.198 +02 28 13.76 22.0G 13GW141 F51 C~346E 2017 04 03.48134 12 54 15.087 +02 28 14.01 22.5G 13GW141 F51 C~346E 2017 04 03.49527 12 54 14.990 +02 28 14.39 22.0G 13GW141 F51 C~346E 2017 04 03.50922 12 54 14.879 +02 28 14.80 21.8G 13GW141 F51 C~346E 2017 04 16.31017 12 52 44.361 +02 33 02.25 22.5G 13GW141 F51 C~346E 2017 04 16.31082 12 52 44.357 +02 33 02.32 22.6G 13GW141 F51 C~346E 2017 04 16.32221 12 52 44.278 +02 33 02.57 22.3G 13GW141 F51 C~346E 2017 04 16.32287 12 52 44.283 +02 33 02.51 21.8G 13GW141 F51 C~346E 2017 04 16.33428 12 52 44.191 +02 33 02.68 22.1G 13GW141 F51 C~346E 2017 04 16.33493 12 52 44.192 +02 33 02.92 22.6G 13GW141 F51 C~346E 2017 04 16.34636 12 52 44.096 +02 33 02.99 22.3G 13GW141 F51 C~346E 2017 04 16.34702 12 52 44.098 +02 33 03.01 21.9G 13GW141 F51 C~346E 2017 04 20.37221 12 52 16.406 +02 34 17.22 22.0G 13GW141 F51 C~346E 2017 04 20.38290 12 52 16.341 +02 34 17.31 22.6G 13GW141 F51 C~346E 2017 04 20.39359 12 52 16.261 +02 34 17.51 22.1G 13GW141 F51 C~346E 2017 04 20.40430 12 52 16.182 +02 34 17.63 22.3G 13GW141 F51 C~346E 2017 04 27.31452 12 51 30.353 +02 36 02.94 21.7G 13GW141 F51 C~346E 2017 04 27.32823 12 51 30.265 +02 36 03.14 22.1G 13GW141 F51 C~346E 2017 04 27.34197 12 51 30.167 +02 36 03.12 22.2G 13GW141 F51 C~346E 2017 04 27.35578 12 51 30.074 +02 36 03.37 22.6G 13GW141 F51 C~346E 2018 03 17.44105 13 04 51.078 -00 37 17.09 22.3G 13GW141 F51 C~346E 2018 03 17.45505 13 04 50.989 -00 37 16.68 21.9G 13GW141 F51 C~346E 2018 03 17.46904 13 04 50.879 -00 37 16.65 22.1G 13GW141 F51 C~346E 2018 03 17.48307 13 04 50.802 -00 37 16.11 22.2G 13GW141 F51 C~346E 2018 04 13.35264 13 01 39.929 -00 26 02.31 22.1G 13GW141 F51 C~346E 2018 04 13.36516 13 01 39.831 -00 26 01.85 21.5G 13GW141 F51 C~346E 2018 04 13.37775 13 01 39.738 -00 26 01.82 22.1G 13GW141 F51 C~346E 2018 04 13.39032 13 01 39.647 -00 26 01.47 22.1G 13GW141 F51 C~346E 2018 06 06.27120 12 56 40.477 -00 20 25.95 23.1G 13GW141 F51 C~346E 2018 06 06.28304 12 56 40.435 -00 20 25.67 22.5G 13GW141 F51 C~346E 2018 06 06.29501 12 56 40.411 -00 20 25.92 22.2G 13GW141 F51 C~346E 2018 06 06.30688 12 56 40.375 -00 20 26.44 22.6G 13GW141 F51 C~346E 2018 06 07.28603 12 56 37.608 -00 20 40.79 22.4G 13GW141 F51 C~346E 2018 06 07.29785 12 56 37.573 -00 20 40.92 22.4G 13GW141 F51 C~346E 2022 04 25.364971 13 38 30.723 -13 24 18.77 21.5w 13GW141 F52 C~5ZZQ 2022 04 25.375241 13 38 30.652 -13 24 18.56 21.4w 13GW141 F52 C~5ZZQ 2022 04 25.385532 13 38 30.563 -13 24 18.33 21.5w 13GW141 F52 C~5ZZQ 2022 04 25.395838 13 38 30.480 -13 24 18.07 21.4w 13GW141 F52 C~5ZZQ 2024 06 07.280649 13 55 42.219 -20 09 12.92 21.7w 13GW141 F52 C~85DV 2024 06 07.302931 13 55 42.100 -20 09 12.43 21.6w 13GW141 F52 C~85DV 2024 06 07.314072 13 55 42.035 -20 09 12.39 21.4w 13GW141 F52 C~85DV
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 0.10 0.00 0.19
2 0.0000 0.00 0.41 0.00 0.37
3 0.0001 0.00 0.21 0.00 0.57
4 1.0324 0.00 -0.00 0.00 -0.12
5 1.0460 0.00 -0.18 0.00 -0.10
6 1.1250 0.00 -0.12 0.00 -0.07
7 1.1250 0.00 -0.04 0.00 -0.01
8 2.2420 0.00 0.01 0.00 0.08
9 2.2420 0.00 0.02 0.00 -0.03
10 2.2420 0.00 0.02 0.00 -0.08
11 2.2421 0.00 -0.09 0.00 -0.06
12 2.2693 0.00 -0.28 0.00 0.03
13 2.2694 0.00 0.80 0.00 0.24
14 2.2694 0.00 0.14 0.00 -0.22
15 2.8560 0.00 -0.08 0.00 -0.04
16 2.8561 0.00 -0.13 0.00 -0.02
17 2.8561 0.00 0.06 0.00 0.06
18 2.8561 0.00 -0.01 0.00 0.03
19 2.9134 0.00 -0.30 0.00 0.13
20 2.9135 0.00 -0.01 0.00 0.10
21 2.9135 0.00 -0.04 0.00 -0.25
22 2.9136 0.00 -0.19 0.00 -0.19
23 2.9981 0.00 -0.03 0.00 0.08
24 2.9982 0.00 -0.23 0.00 -0.13
25 2.9982 0.00 -0.10 0.00 -0.15
26 2.9982 0.00 -0.07 0.00 -0.20
27 3.0882 0.00 -0.17 0.00 -0.15
28 3.2466 0.00 -0.10 0.00 0.04
29 3.2466 0.00 -0.00 0.00 0.00
30 3.2467 0.00 0.14 0.00 -0.12
31 3.2467 0.00 -0.02 0.00 -0.07
32 3.9511 0.00 -0.13 0.00 0.05
33 4.0249 0.00 0.12 0.00 0.05
34 4.0438 0.00 0.08 0.00 -0.07
35 4.0438 0.00 -0.17 0.00 -0.05
36 4.0439 0.00 -0.16 0.00 0.08
37 4.0439 0.00 0.11 0.00 -0.03
38 4.0631 0.00 -0.04 0.00 -0.47
39 4.0631 0.00 -0.03 0.00 0.02
40 4.0632 0.00 0.29 0.00 -0.02
41 4.0632 0.00 0.09 0.00 -0.19
42 4.1176 0.00 0.27 0.00 0.35
43 4.1176 0.00 -0.22 0.00 0.09
44 4.1177 0.00 -0.02 0.00 0.02
45 4.1889 0.00 -0.03 0.00 0.18
46 5.0378 0.00 0.21 0.00 -0.17
47 5.0379 0.00 -0.09 0.00 0.10
48 5.0379 0.00 0.10 0.00 -0.08
49 5.0784 0.00 -0.06 0.00 0.02
50 5.0785 0.00 0.13 0.00 0.09
51 5.0785 0.00 0.32 0.00 -0.15
52 5.0785 0.00 0.09 0.00 -0.11
53 5.0785 0.00 -0.08 0.00 -0.24
54 5.0786 0.00 0.08 0.00 0.02
55 5.0786 0.00 -0.13 0.00 -0.03
56 5.0787 0.00 -0.08 0.00 0.04
57 5.1032 0.00 -0.11 0.00 -0.08
58 5.1033 0.00 0.14 0.00 -0.07
59 5.1033 0.00 0.17 0.00 -0.07
60 5.1033 0.00 -0.09 0.00 0.17
61 5.1171 0.00 0.11 0.00 0.01
62 5.1171 0.00 -0.05 0.00 -0.09
63 5.1172 0.00 0.02 0.00 -0.06
64 5.1172 0.00 -0.13 0.00 0.00
65 5.1523 0.00 -0.02 0.00 -0.05
66 5.1523 0.00 -0.01 0.00 0.01
67 5.1523 0.00 0.01 0.00 0.03
68 5.1523 0.00 0.16 0.00 -0.04
69 5.1523 0.00 -0.01 0.00 -0.09
70 5.1523 0.00 0.07 0.00 0.14
71 5.1524 0.00 -0.16 0.00 -0.02
72 5.1524 0.00 -0.06 0.00 -0.01
73 5.1634 0.00 -0.15 0.00 0.03
74 5.1634 0.00 -0.01 0.00 -0.06
75 5.1634 0.00 -0.10 0.00 -0.05
76 5.1635 0.00 -0.17 0.00 -0.11
77 5.1824 0.00 0.09 0.00 0.24
78 5.1824 0.00 0.13 0.00 0.26
79 5.1825 0.00 0.01 0.00 0.07
80 5.1825 0.00 -0.02 0.00 0.14
81 6.0698 0.00 -0.08 0.00 0.11
82 6.0698 0.00 0.01 0.00 0.15
83 6.0699 0.00 -0.21 0.00 -0.18
84 6.0699 0.00 0.07 0.00 -0.00
85 6.1435 0.00 -0.02 0.00 0.04
86 6.1435 0.00 -0.11 0.00 0.22
87 6.1435 0.00 -0.12 0.00 -0.03
88 6.1436 0.00 -0.10 0.00 0.04
89 6.2911 0.00 -0.17 0.00 -0.21
90 6.2911 0.00 -0.26 0.00 0.24
91 6.2912 0.00 -0.07 0.00 0.16
92 6.2912 0.00 -0.07 0.00 -0.18
93 6.2939 0.00 -0.02 0.00 -0.02
94 6.2939 0.00 -0.03 0.00 0.03
95 10.1764 0.00 0.01 0.00 0.08
96 10.1764 0.00 0.18 0.00 0.07
97 10.1764 0.00 0.08 0.00 0.09
98 10.1764 0.00 0.07 0.00 0.13
99 12.2952 0.00 0.08 0.00 -0.05
100 12.2953 0.00 0.09 0.00 0.05
101 12.2953 0.00 0.01 0.00 -0.11
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.
13GW141 quality flag:3 Type: CENTAURS CENTAURS CENTAURS axisobj 539.365 539.276 539.455 ecceobj 0.956 0.956 0.956 incobj 32.126 32.126 32.126 qmin 19.389 19.974 19.093 qmax 1839.649 1456.510 1950.928 amean 590.801 573.258 682.984 amin 480.551 505.121 520.630 amax 931.817 740.112 987.387 emean 0.959 0.958 0.965 emin 0.947 0.949 0.950 emax 0.976 0.969 0.976 imean 32.318 32.362 32.176 imin 29.754 29.859 29.401 imax 35.921 35.273 35.491 excite_mean 1.098 1.098 1.102 fracstop 1.000 1.000 1.000 cjmean 2.155 2.152 2.154 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 209.2 209.5 208.9 kozaiamp 4.9 4.9 4.6