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: 685903 # Created Sun Dec 22 02:07:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 88 observations of 88 # Arc: 13.91y # First observation: 2010/02/21 # Last observation: 2024/01/21 # Chi-squared of fit: 140.33 DOF: 170 RMS: 0.22 # Min/Max residuals: -0.95 0.61 # Exact a, adot, b, bdot, g, gdot: 1.948098E-05 4.556206E-02 -7.754034E-06 -1.431709E-02 3.797831E-02 -5.833550E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 23.849296 144.600319 -0.137033 0.397947 -0.900183 2455248.952276 # Heliocentric elements and errors Epoch: 2455248.5000 = 2010/02/21 Mean Anomaly: 319.23940 +/- 0.000 Argument of Peri: 179.48333 +/- 0.000 Long of Asc Node: 15.70359 +/- 0.000 Inclination: 28.73318 +/- 0.000 Eccentricity: 0.15194410 +/- 0.0000 Semi-Major Axis: 30.36869400 +/- 0.0000 Time of Perihelion: 2462169.6082 +/- 0.0 Perihelion: 25.75435005 +/- 0.0000 Aphelion: 34.98303794 +/- 0.0000 Period (y) 167.3583 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -20.50850784 +/- 0.0000 Ecliptic Y 14.40585352 +/- 0.0000 Ecliptic Z 10.64621414 +/- 0.0000 Ecliptic XDOT -0.00192682 +/- 0.0000 Ecliptic YDOT -0.00265264 +/- 0.0000 Ecliptic ZDOT -0.00111408 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 27.22999412 +/- 0.0000 Geocenter to KBO 26.33092746 +/- 0.0000 # Hcoef: 8.02
The following table shows the complete astrometric record for 685903. 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 (685903) followed by the observatory code and reference code for the source of the astrometry.
2010 02 21.45151 10 25 43.023 +35 34 16.62 21.7G 685903 F51 C~3450 2010 02 21.46094 10 25 42.928 +35 34 16.47 22.7G 685903 F51 C~3450 2010 02 23.45921 10 25 25.501 +35 35 13.94 22.6G 685903 F51 C~3450 2010 02 23.46823 10 25 25.412 +35 35 14.59 22.6G 685903 F51 C~3450 2010 03 21.27655 10 21 50.105 +35 40 42.57 22.8G 685903 F51 C~3451 2010 03 21.28565 10 21 50.098 +35 40 41.42 23.1G 685903 F51 C~3451 2010 12 30.66826 10 41 33.579 +33 01 15.79 21.9G 685903 F51 C~3451 2010 12 31.62816 10 41 30.191 +33 02 07.67 21.2G 685903 F51 C~3451 2012 02 05.40209 10 47 34.716 +31 39 09.71 21.9G 685903 F51 C~3451 2012 02 12.55300 10 46 39.242 +31 44 35.96 22.2G 685903 F51 C~3451 2012 02 12.56489 10 46 39.146 +31 44 36.13 22.3G 685903 F51 C~3451 2013 01 31.60709 10 57 22.274 +29 37 42.60 22.6G 685903 F51 C~3451 2014 01 11.65817 11 08 12.676 +27 18 53.74 22.6G 685903 F51 C~3451 2014 01 26.63312 11 06 57.127 +27 31 42.01 22.6G 685903 F51 C~3451 2014 02 10.55472 11 05 16.976 +27 43 58.97 21.8G 685903 F51 C~3451 2014 02 10.56702 11 05 16.883 +27 43 59.50 22.4G 685903 F51 C~3451 2014 02 10.57884 11 05 16.793 +27 43 59.95 22.3G 685903 F51 C~3451 2014 02 10.59069 11 05 16.699 +27 44 00.67 22.4G 685903 F51 C~3451 2014 02 25.55760 11 03 20.307 +27 54 30.18 22.0G 685903 F51 C~3451 2015 01 14.62522 11 16 42.889 +25 16 54.32 21.7G 685903 F51 C~3451 2015 01 14.63473 11 16 42.868 +25 16 54.81 22.2G 685903 F51 C~3451 2015 01 14.64426 11 16 42.839 +25 16 55.33 22.1G 685903 F51 C~3451 2015 01 14.65367 11 16 42.783 +25 16 55.72 22.4G 685903 F51 C~3451 2015 03 17.47465 11 09 36.557 +26 00 07.50 22.3G 685903 F51 C~3451 2015 03 17.48506 11 09 36.469 +26 00 07.93 22.0G 685903 F51 C~3451 2015 03 17.49556 11 09 36.379 +26 00 08.07 22.1G 685903 F51 C~3451 2015 03 17.53698 11 09 36.055 +26 00 08.92 22.1G 685903 F51 C~3451 2015 04 20.33681 11 05 44.363 +26 01 40.55 22.7G 685903 F51 C~3451 2015 04 20.34962 11 05 44.274 +26 01 40.95 22.5G 685903 F51 C~3451 2015 04 20.36257 11 05 44.200 +26 01 40.69 22.5G 685903 F51 C~3451 2015 04 20.37552 11 05 44.143 +26 01 40.31 22.1G 685903 F51 C~3451 2015 04 21.39789 11 05 38.777 +26 01 22.69 22.0G 685903 F51 C~3451 2016 02 03.46424 11 23 33.899 +23 25 35.53 21.9G 685903 F51 C~3451 2016 02 03.47719 11 23 33.843 +23 25 36.30 22.4G 685903 F51 C~3451 2016 02 03.49026 11 23 33.761 +23 25 36.80 22.2G 685903 F51 C~3451 2016 02 03.50361 11 23 33.670 +23 25 37.66 22.4G 685903 F51 C~3451 2016 03 08.35065 11 19 25.722 +23 49 28.30 22.2G 685903 F51 C~3451 2016 03 08.37429 11 19 25.539 +23 49 29.34 21.8G 685903 F51 C~3451 2016 03 08.38610 11 19 25.388 +23 49 29.44 21.8G 685903 F51 C~3451 2016 03 10.35510 11 19 09.708 +23 50 30.93 21.9G 685903 F51 C~3451 2016 03 10.36798 11 19 09.577 +23 50 31.46 20.8G 685903 F51 C~3451 2016 03 10.38098 11 19 09.503 +23 50 31.82 21.9G 685903 F51 C~3451 2016 03 10.39406 11 19 09.409 +23 50 32.32 21.4G 685903 F51 C~3451 2016 03 30.29986 11 16 35.567 +23 57 28.19 22.0G 685903 F51 C~3451 2016 03 30.31346 11 16 35.465 +23 57 28.28 21.7G 685903 F51 C~3451 2016 03 30.32704 11 16 35.370 +23 57 28.51 22.3G 685903 F51 C~3451 2016 03 30.34060 11 16 35.270 +23 57 28.61 22.0G 685903 F51 C~3451 2016 04 04.29481 11 15 59.942 +23 58 08.09 22.1G 685903 F51 C~3451 2016 04 04.30748 11 15 59.827 +23 58 07.37 22.5G 685903 F51 C~3451 2016 04 04.32018 11 15 59.783 +23 58 08.38 22.7G 685903 F51 C~3451 2016 04 04.33296 11 15 59.691 +23 58 08.57 22.1G 685903 F51 C~3451 2016 05 19.36064 11 12 36.239 +23 43 00.96 21.7G 685903 F51 C~3451 2017 02 01.58812 11 32 03.155 +21 14 34.09 21.5G 685903 F51 C~3451 2017 02 01.60098 11 32 03.038 +21 14 35.34 21.7G 685903 F51 C~3451 2017 02 01.61387 11 32 02.994 +21 14 36.03 22.1G 685903 F51 C~3451 2017 02 01.64278 11 32 02.821 +21 14 37.08 22.4G 685903 F51 C~3451 2017 02 22.37752 11 29 44.817 +21 30 24.24 21.8G 685903 F51 C~3451 2017 02 22.39024 11 29 44.772 +21 30 24.54 21.8G 685903 F51 C~3451 2017 02 22.40290 11 29 44.671 +21 30 25.08 21.5G 685903 F51 C~3451 2017 02 22.41558 11 29 44.585 +21 30 25.59 21.6G 685903 F51 C~3451 2017 03 28.30709 11 25 22.520 +21 48 03.58 22.1G 685903 F51 C~3451 2017 03 28.32032 11 25 22.416 +21 48 03.77 22.2G 685903 F51 C~3451 2017 03 28.33354 11 25 22.319 +21 48 04.02 22.4G 685903 F51 C~3451 2017 03 28.34693 11 25 22.219 +21 48 04.35 22.0G 685903 F51 C~3451 2017 04 25.39075 11 22 22.021 +21 48 51.54 21.9G 685903 F51 C~3451 2017 04 25.40411 11 22 21.941 +21 48 51.62 22.2G 685903 F51 C~3451 2017 12 31.58931 11 42 01.430 +18 40 52.00 22.7G 685903 F51 C~3451 2018 02 10.43059 11 39 24.094 +19 08 41.66 22.1G 685903 F51 C~3451 2018 02 10.44341 11 39 24.024 +19 08 42.26 21.9G 685903 F51 C~3451 2018 02 10.45624 11 39 23.917 +19 08 42.41 22.1G 685903 F51 C~3451 2018 02 10.46904 11 39 23.839 +19 08 43.09 22.1G 685903 F51 C~3451 2018 03 07.33294 11 36 25.810 +19 26 11.40 22.4G 685903 F51 C~3451 2018 03 07.34460 11 36 25.729 +19 26 11.76 22.3G 685903 F51 C~3451 2018 03 07.35622 11 36 25.638 +19 26 12.25 22.5G 685903 F51 C~3451 2018 03 07.36787 11 36 25.548 +19 26 12.72 22.4G 685903 F51 C~3451 2018 03 10.35107 11 36 02.406 +19 27 59.38 22.3G 685903 F51 C~3451 2018 03 10.36289 11 36 02.319 +19 27 59.37 21.5G 685903 F51 C~3451 2018 03 10.37471 11 36 02.228 +19 28 00.35 21.9G 685903 F51 C~3451 2018 03 10.38654 11 36 02.120 +19 28 00.32 22.2G 685903 F51 C~3451 2022 03 10.359716 12 07 48.480 +10 17 49.30 22.0w 685903 F52 C~5VLc 2022 03 10.371465 12 07 48.395 +10 17 49.72 21.8w 685903 F52 C~5VLc 2022 03 10.381666 12 07 48.298 +10 17 49.93 21.8w 685903 F52 C~5VLc 2023 05 14.359230 12 08 18.997 +08 18 30.79 22.0w 685903 F51 C~6o8q 2023 05 14.370157 12 08 18.942 +08 18 30.80 22.0w 685903 F51 C~6o8q 2023 05 14.392098 12 08 18.853 +08 18 30.75 21.8w 685903 F51 C~6o8q 2024 01 21.630471 12 27 11.529 +05 09 48.17 22.2w 685903 F51 C~7gmP 2024 01 21.642286 12 27 11.529 +05 09 48.74 22.2w 685903 F51 C~7gmP 2024 01 21.654037 12 27 11.490 +05 09 48.88 22.0w 685903 F51 C~7gmP
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 0.06 0.00 0.38
2 0.0000 0.00 -0.11 0.00 -0.05
3 0.0055 0.00 0.01 0.00 -0.05
4 0.0055 0.00 -0.12 0.00 0.35
5 0.0762 0.00 -0.49 0.00 0.41
6 0.0762 0.00 0.45 0.00 -0.71
7 0.8548 0.00 0.61 0.00 -0.01
8 0.8574 0.00 0.42 0.00 -0.11
9 1.9547 0.00 -0.13 0.00 0.22
10 1.9743 0.00 -0.08 0.00 0.03
11 1.9743 0.00 -0.07 0.00 -0.31
12 2.9436 0.00 0.07 0.00 0.27
13 3.8883 0.00 -0.50 0.00 -0.26
14 3.9293 0.00 -0.04 0.00 -0.06
15 3.9702 0.00 0.05 0.00 0.12
16 3.9702 0.00 0.04 0.00 0.08
17 3.9702 0.00 0.02 0.00 -0.02
18 3.9703 0.00 -0.06 0.00 0.16
19 4.0112 0.00 -0.18 0.00 -0.54
20 4.8958 0.00 -0.35 0.00 -0.03
21 4.8958 0.00 -0.06 0.00 -0.00
22 4.8958 0.00 0.10 0.00 0.06
23 4.8958 0.00 -0.14 0.00 -0.01
24 5.0651 0.00 0.13 0.00 -0.05
25 5.0651 0.00 0.07 0.00 0.16
26 5.0651 0.00 -0.01 0.00 0.08
27 5.0653 0.00 0.12 0.00 0.06
28 5.1578 0.00 0.17 0.00 -0.43
29 5.1578 0.00 -0.11 0.00 0.19
30 5.1579 0.00 -0.17 0.00 0.15
31 5.1579 0.00 0.04 0.00 -0.01
32 5.1607 0.00 -0.07 0.00 0.22
33 5.9494 0.00 -0.23 0.00 -0.11
34 5.9494 0.00 0.14 0.00 0.03
35 5.9495 0.00 0.14 0.00 -0.11
36 5.9495 0.00 0.03 0.00 0.10
37 6.0422 0.00 0.41 0.00 -0.09
38 6.0422 0.00 0.54 0.00 0.18
39 6.0423 0.00 -0.29 0.00 -0.10
40 6.0476 0.00 -0.08 0.00 -0.02
41 6.0477 0.00 -0.48 0.00 0.12
42 6.0477 0.00 -0.01 0.00 0.08
43 6.0478 0.00 0.17 0.00 0.18
44 6.1023 0.00 -0.01 0.00 0.03
45 6.1023 0.00 -0.03 0.00 -0.03
46 6.1023 0.00 0.06 0.00 0.05
47 6.1024 0.00 0.08 0.00 0.00
48 6.1159 0.00 -0.29 0.00 -0.16
49 6.1160 0.00 -0.67 0.00 -0.95
50 6.1160 0.00 0.02 0.00 -0.01
51 6.1160 0.00 0.00 0.00 0.11
52 6.2393 0.00 0.55 0.00 0.21
53 6.9463 0.00 0.04 0.00 -0.47
54 6.9463 0.00 -0.59 0.00 0.17
55 6.9464 0.00 -0.12 0.00 0.26
56 6.9465 0.00 -0.18 0.00 -0.05
57 7.0032 0.00 -0.65 0.00 0.15
58 7.0033 0.00 0.11 0.00 -0.10
59 7.0033 0.00 0.02 0.00 -0.11
60 7.0033 0.00 0.17 0.00 -0.14
61 7.0961 0.00 0.06 0.00 0.01
62 7.0962 0.00 0.01 0.00 -0.02
63 7.0962 0.00 0.06 0.00 0.00
64 7.0962 0.00 0.09 0.00 0.10
65 7.1730 0.00 0.06 0.00 -0.14
66 7.1730 0.00 -0.09 0.00 0.13
67 7.8580 0.00 -0.01 0.00 -0.01
68 7.9698 0.00 0.22 0.00 0.21
69 7.9699 0.00 0.41 0.00 0.22
70 7.9699 0.00 0.04 0.00 -0.21
71 7.9699 0.00 0.10 0.00 -0.12
72 8.0380 0.00 -0.08 0.00 0.07
73 8.0380 0.00 0.08 0.00 -0.00
74 8.0381 0.00 0.08 0.00 0.05
75 8.0381 0.00 0.10 0.00 0.09
76 8.0463 0.00 -0.02 0.00 0.19
77 8.0463 0.00 0.08 0.00 -0.24
78 8.0463 0.00 0.11 0.00 0.33
79 8.0464 0.00 -0.10 0.00 -0.12
80 12.0463 0.00 0.05 0.00 0.17
81 12.0463 0.00 0.09 0.00 0.14
82 12.0464 0.00 -0.22 0.00 -0.03
83 13.2236 0.00 0.03 0.00 -0.12
84 13.2236 0.00 -0.07 0.00 -0.05
85 13.2237 0.00 0.04 0.00 0.01
86 13.9142 0.00 -0.18 0.00 -0.25
87 13.9143 0.00 0.24 0.00 0.12
88 13.9143 0.00 0.06 0.00 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.
685903 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 30.509 30.509 30.509 ecceobj 0.152 0.152 0.152 incobj 28.718 28.718 28.718 qmin 23.376 20.243 19.384 qmax 37.537 41.804 41.883 amean 30.164 30.418 30.261 amin 29.460 29.556 29.550 amax 30.862 31.149 31.045 emean 0.110 0.236 0.235 emin 0.060 0.108 0.145 emax 0.222 0.342 0.354 imean 29.573 27.148 26.942 imin 28.314 23.917 22.614 imax 30.425 30.482 29.003 excite_mean 0.507 0.518 0.516 fracstop 0.144 0.124 0.056 cjmean 2.717 2.716 2.717 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 187.8 186.1 146.9 kozaiamp 179.9 89.2 28.1