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: 690822 # Created Sun Dec 22 02:07:54 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 110 observations of 110 # Arc: 13.04y # First observation: 2010/09/04 # Last observation: 2023/09/18 # Chi-squared of fit: 89.26 DOF: 214 RMS: 0.16 # Min/Max residuals: -1.07 0.55 # Exact a, adot, b, bdot, g, gdot: 1.336092E-05 2.028705E-02 -6.996825E-07 -7.083175E-04 2.310486E-02 2.344948E-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 -2.669366 -30.039043 -0.201197 -0.045863 -0.982678 2455443.803626 # Heliocentric elements and errors Epoch: 2455444.5000 = 2010/09/05 Mean Anomaly: 128.74463 +/- 0.000 Argument of Peri: 90.82353 +/- 0.000 Long of Asc Node: 97.62899 +/- 0.000 Inclination: 3.28407 +/- 0.000 Eccentricity: 0.16687785 +/- 0.0000 Semi-Major Axis: 39.56345820 +/- 0.0000 Time of Perihelion: 2422938.2829 +/- 0.0 Perihelion: 32.96119322 +/- 0.0000 Aphelion: 46.16572319 +/- 0.0000 Period (y) 248.8568 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.38378694 +/- 0.0000 Ecliptic Y -21.96172934 +/- 0.0000 Ecliptic Z -2.01569395 +/- 0.0000 Ecliptic XDOT 0.00144087 +/- 0.0000 Ecliptic YDOT 0.00195040 +/- 0.0000 Ecliptic ZDOT -0.00009680 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.26837882 +/- 0.0000 Geocenter to KBO 43.28089042 +/- 0.0000 # Hcoef: 5.80
The following table shows the complete astrometric record for 690822. 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 (690822) followed by the observatory code and reference code for the source of the astrometry.
2010 09 04.30286 22 12 04.433 -13 58 59.34 22.5G 690822 F51 C~2rY7 2010 09 13.31469 22 11 25.880 -14 02 25.43 23.0G 690822 F51 C~2rY7 2010 09 14.29102 22 11 21.846 -14 02 46.77 21.9G 690822 F51 C~2rY7 2010 09 14.30242 22 11 21.788 -14 02 47.00 22.4G 690822 F51 C~2rY7 2010 09 29.29618 22 10 24.401 -14 07 39.27 22.3G 690822 F51 C~2rY7 2010 09 29.32325 22 10 24.292 -14 07 39.69 22.2G 690822 F51 C~2rY7 2011 07 27.47762 22 19 22.893 -13 20 07.62 22.2G 690822 F51 C~2rY7 2011 07 27.49234 22 19 22.828 -13 20 07.96 22.5G 690822 F51 C~2rY7 2011 07 27.50701 22 19 22.786 -13 20 08.34 22.4G 690822 F51 C~2rY7 2011 07 27.52170 22 19 22.724 -13 20 08.63 22.5G 690822 F51 C~2rY7 2012 06 16.59441 22 25 31.510 -12 45 22.68 22.2G 690822 F51 C~2rY7 2012 08 17.43876 22 22 22.040 -13 06 15.95 21.8G 690822 F51 C~2rY7 2012 09 04.42981 22 21 02.858 -13 13 50.57 22.6G 690822 F51 C~2rY7 2012 11 02.27673 22 17 58.989 -13 29 01.16 22.2G 690822 F51 C~2rY7 2013 08 09.44179 22 27 23.565 -12 39 43.83 22.2w 690822 F51 C~1vXc 2013 08 09.45604 22 27 23.498 -12 39 44.28 22.0w 690822 F51 C~1vXc 2013 08 09.47027 22 27 23.437 -12 39 44.58 22.1w 690822 F51 C~1vXc 2013 08 09.48452 22 27 23.379 -12 39 44.95 22.0w 690822 F51 C~1vXc 2013 08 31.40783 22 25 48.487 -12 49 07.94 22.1w 690822 F51 C~1vXc 2013 08 31.42234 22 25 48.409 -12 49 08.27 22.1w 690822 F51 C~1vXc 2013 08 31.43681 22 25 48.350 -12 49 08.45 21.9w 690822 F51 C~1vXc 2013 08 31.45127 22 25 48.275 -12 49 09.11 22.0w 690822 F51 C~1vXc 2013 10 06.31120 22 23 25.858 -13 01 58.62 21.9G 690822 F51 C~2rY7 2013 10 06.32545 22 23 25.831 -13 01 59.00 22.5G 690822 F51 C~2rY7 2013 10 06.33969 22 23 25.761 -13 01 59.27 22.5G 690822 F51 C~2rY7 2014 06 28.51091 22 33 57.711 -12 01 50.59 22.5w 690822 F51 C~1vXc 2014 06 28.52302 22 33 57.703 -12 01 50.91 22.4w 690822 F51 C~1vXc 2014 06 28.53510 22 33 57.677 -12 01 51.14 22.3w 690822 F51 C~1vXc 2014 06 28.54715 22 33 57.665 -12 01 51.29 22.3w 690822 F51 C~1vXc 2014 07 06.56770 22 33 41.073 -12 03 58.69 22.1G 690822 F51 C~2rY7 2014 07 06.57845 22 33 41.046 -12 03 59.16 22.0G 690822 F51 C~2rY7 2014 07 06.58920 22 33 41.041 -12 03 59.05 22.7G 690822 F51 C~2rY7 2014 07 06.59998 22 33 40.997 -12 03 59.40 22.4G 690822 F51 C~2rY7 2014 07 25.52380 22 32 45.248 -12 10 24.65 22.4w 690822 F51 C~1vXc 2014 07 25.53591 22 32 45.201 -12 10 24.85 22.1w 690822 F51 C~1vXc 2014 07 25.54803 22 32 45.154 -12 10 25.19 22.4w 690822 F51 C~1vXc 2014 07 25.56014 22 32 45.119 -12 10 25.60 22.5w 690822 F51 C~1vXc 2014 08 03.47755 22 32 12.182 -12 13 58.59 22.4w 690822 F51 C~1vXc 2014 08 03.49103 22 32 12.132 -12 13 58.95 22.2w 690822 F51 C~1vXc 2014 08 03.50445 22 32 12.067 -12 13 59.16 22.4w 690822 F51 C~1vXc 2014 08 03.51788 22 32 12.022 -12 13 59.56 22.3w 690822 F51 C~1vXc 2014 08 04.48331 22 32 08.272 -12 14 23.62 22.1G 690822 F51 C~2rY7 2014 08 04.49669 22 32 08.228 -12 14 23.39 22.8G 690822 F51 C~2rY7 2014 08 04.51006 22 32 08.176 -12 14 23.92 22.8G 690822 F51 C~2rY7 2014 08 05.47127 22 32 04.366 -12 14 47.98 22.3G 690822 F51 C~2rY7 2014 08 05.48485 22 32 04.343 -12 14 48.61 22.6G 690822 F51 C~2rY7 2014 08 05.51186 22 32 04.228 -12 14 48.74 21.7G 690822 F51 C~2rY7 2014 09 02.35059 22 30 05.632 -12 26 45.09 22.3G 690822 F51 C~2rY7 2014 09 02.36416 22 30 05.549 -12 26 45.44 22.3G 690822 F51 C~2rY7 2014 09 02.37777 22 30 05.481 -12 26 45.52 21.5G 690822 F51 C~2rY7 2014 09 02.39134 22 30 05.436 -12 26 45.92 22.4G 690822 F51 C~2rY7 2014 09 18.29065 22 28 57.690 -12 33 08.08 22.0G 690822 F51 C~2rY7 2014 09 18.30222 22 28 57.648 -12 33 08.09 22.7G 690822 F51 C~2rY7 2014 10 10.37442 22 27 37.563 -12 40 08.08 23.1G 690822 F51 C~2rY7 2014 11 10.21019 22 26 36.816 -12 44 18.72 22.7w 690822 F51 C~1vXc 2014 11 10.22249 22 26 36.826 -12 44 18.64 22.5w 690822 F51 C~1vXc 2014 11 10.23477 22 26 36.799 -12 44 18.65 22.5w 690822 F51 C~1vXc 2014 11 10.24708 22 26 36.794 -12 44 18.78 22.6w 690822 F51 C~1vXc 2015 06 25.55600 22 38 21.196 -11 37 58.98 22.3G 690822 F51 C~2rY7 2015 07 12.50359 22 37 46.423 -11 42 28.34 22.4w 690822 F51 C~1vXc 2015 07 12.51472 22 37 46.388 -11 42 28.35 22.2w 690822 F51 C~1vXc 2015 07 12.52589 22 37 46.361 -11 42 28.20 22.2w 690822 F51 C~1vXc 2015 07 12.53705 22 37 46.336 -11 42 28.75 22.2w 690822 F51 C~1vXc 2015 09 09.37065 22 33 58.801 -12 06 20.37 22.4G 690822 F51 C~2rY7 2015 09 09.38184 22 33 58.750 -12 06 20.84 22.1G 690822 F51 C~2rY7 2015 09 09.39297 22 33 58.706 -12 06 20.93 22.2G 690822 F51 C~2rY7 2015 09 09.40408 22 33 58.654 -12 06 21.18 22.2G 690822 F51 C~2rY7 2015 11 03.27030 22 31 04.227 -12 21 15.81 22.5G 690822 F51 C~2rY7 2016 08 03.50582 22 40 51.192 -11 27 26.14 22.3G 690822 F51 C~2rY7 2016 08 03.51685 22 40 51.143 -11 27 26.47 22.7G 690822 F51 C~2rY7 2016 08 03.52790 22 40 51.093 -11 27 26.71 22.2G 690822 F51 C~2rY7 2016 08 03.53896 22 40 51.046 -11 27 27.13 22.5G 690822 F51 C~2rY7 2016 10 25.25482 22 35 37.722 -11 57 18.48 22.5G 690822 F51 C~2rY7 2016 10 25.26597 22 35 37.691 -11 57 18.65 22.6G 690822 F51 C~2rY7 2016 10 25.27712 22 35 37.670 -11 57 18.71 22.3G 690822 F51 C~2rY7 2016 10 25.28831 22 35 37.656 -11 57 18.60 22.3G 690822 F51 C~2rY7 2017 07 08.53294 22 46 28.588 -10 54 32.35 21.7G 690822 F51 C~2rY7 2017 07 24.49106 22 45 44.761 -10 59 49.14 22.2G 690822 F51 C~2rY7 2017 07 24.50200 22 45 44.730 -10 59 49.48 21.9G 690822 F51 C~2rY7 2017 07 24.51294 22 45 44.674 -10 59 49.43 22.1G 690822 F51 C~2rY7 2017 07 24.52444 22 45 44.665 -10 59 49.80 22.4G 690822 F51 C~2rY8 2017 08 01.48028 22 45 17.424 -11 02 54.62 21.7G 690822 F51 C~2rY8 2017 08 01.49161 22 45 17.371 -11 02 55.06 21.8G 690822 F51 C~2rY8 2017 08 01.50294 22 45 17.333 -11 02 55.44 21.9G 690822 F51 C~2rY8 2017 08 01.51429 22 45 17.291 -11 02 55.51 21.9G 690822 F51 C~2rY8 2017 08 17.42943 22 44 14.999 -11 09 38.96 22.2G 690822 F51 C~2rY8 2017 08 17.44040 22 44 14.952 -11 09 39.25 22.5G 690822 F51 C~2rY8 2017 08 17.45137 22 44 14.904 -11 09 39.57 22.2G 690822 F51 C~2rY8 2017 08 17.46234 22 44 14.863 -11 09 39.94 22.5G 690822 F51 C~2rY8 2017 09 21.37164 22 41 46.355 -11 24 26.86 22.0G 690822 F51 C~2rY8 2017 09 21.38263 22 41 46.308 -11 24 27.25 22.7G 690822 F51 C~2rY8 2017 09 21.39361 22 41 46.255 -11 24 27.55 21.7G 690822 F51 C~2rY8 2017 09 21.40461 22 41 46.198 -11 24 27.39 22.2G 690822 F51 C~2rY8 2017 10 10.35023 22 40 36.719 -11 30 44.19 22.3G 690822 F51 C~2rY8 2017 10 20.31703 22 40 07.552 -11 33 08.85 21.1G 690822 F51 C~2rY8 2020 09 13.38296 22 55 07.946 -10 09 48.92 22.3w 690822 F51 C~48Ch 2020 09 13.39908 22 55 07.871 -10 09 49.31 22.3w 690822 F51 C~48Ch 2020 09 13.41524 22 55 07.785 -10 09 49.75 22.2w 690822 F51 C~48Ch 2020 09 13.43145 22 55 07.715 -10 09 50.19 22.2w 690822 F51 C~48Ch 2021 09 08.426987 22 59 44.130 -09 43 23.56 22.1w 690822 F51 C~52T5 2021 09 08.440207 22 59 44.064 -09 43 23.87 22.3w 690822 F51 C~52T5 2021 09 08.453500 22 59 44.021 -09 43 24.08 22.0w 690822 F51 C~52T5 2023 09 14.426742 23 07 44.743 -08 57 05.48 22.3w 690822 F51 C~7B1m 2023 09 14.438443 23 07 44.699 -08 57 05.62 22.1w 690822 F51 C~7B1m 2023 09 14.450146 23 07 44.626 -08 57 06.31 22.1w 690822 F51 C~7B1m 2023 09 14.461852 23 07 44.591 -08 57 06.59 22.0w 690822 F51 C~7B1m 2023 09 18.358957 23 07 28.171 -08 58 46.94 22.0w 690822 F51 C~7B1m 2023 09 18.369649 23 07 28.130 -08 58 46.98 22.1w 690822 F51 C~7B1m 2023 09 18.380359 23 07 28.085 -08 58 47.44 22.2w 690822 F51 C~7B1m 2023 09 18.391088 23 07 28.040 -08 58 47.86 22.1w 690822 F51 C~7B1m
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 0.09 0.00 0.08
2 0.0247 0.00 -0.03 0.00 0.00
3 0.0273 0.00 0.09 0.00 -0.10
4 0.0274 0.00 -0.06 0.00 -0.08
5 0.0684 0.00 -0.05 0.00 -0.11
6 0.0685 0.00 -0.24 0.00 -0.06
7 0.8930 0.00 -0.00 0.00 -0.05
8 0.8931 0.00 -0.13 0.00 -0.04
9 0.8931 0.00 0.09 0.00 -0.07
10 0.8931 0.00 0.01 0.00 -0.01
11 1.7831 0.00 0.10 0.00 0.41
12 1.9525 0.00 0.02 0.00 0.12
13 2.0017 0.00 0.20 0.00 -0.19
14 2.1628 0.00 0.03 0.00 0.03
15 2.9299 0.00 -0.02 0.00 0.02
16 2.9299 0.00 -0.12 0.00 -0.06
17 2.9300 0.00 -0.13 0.00 -0.00
18 2.9300 0.00 -0.10 0.00 -0.01
19 2.9900 0.00 0.21 0.00 -0.08
20 2.9901 0.00 0.01 0.00 -0.04
21 2.9901 0.00 0.10 0.00 0.14
22 2.9901 0.00 -0.06 0.00 -0.15
23 3.0883 0.00 -0.02 0.00 0.12
24 3.0884 0.00 0.29 0.00 -0.03
25 3.0884 0.00 -0.06 0.00 -0.07
26 3.8144 0.00 -0.18 0.00 0.36
27 3.8144 0.00 0.03 0.00 0.21
28 3.8145 0.00 -0.02 0.00 0.16
29 3.8145 0.00 0.13 0.00 0.18
30 3.8365 0.00 -0.10 0.00 -0.03
31 3.8365 0.00 -0.11 0.00 -0.31
32 3.8365 0.00 0.21 0.00 -0.02
33 3.8365 0.00 -0.06 0.00 -0.18
34 3.8884 0.00 0.14 0.00 -0.02
35 3.8884 0.00 0.08 0.00 0.06
36 3.8884 0.00 0.03 0.00 0.00
37 3.8885 0.00 0.15 0.00 -0.13
38 3.9129 0.00 -0.21 0.00 -0.14
39 3.9129 0.00 -0.16 0.00 -0.16
40 3.9129 0.00 -0.34 0.00 -0.04
41 3.9130 0.00 -0.21 0.00 -0.11
42 3.9156 0.00 -0.05 0.00 -0.28
43 3.9157 0.00 0.09 0.00 0.29
44 3.9157 0.00 0.11 0.00 0.09
45 3.9183 0.00 -0.36 0.00 -0.04
46 3.9184 0.00 0.12 0.00 -0.34
47 3.9184 0.00 0.03 0.00 0.21
48 3.9947 0.00 0.31 0.00 -0.12
49 3.9947 0.00 -0.02 0.00 -0.13
50 3.9947 0.00 -0.14 0.00 0.14
51 3.9948 0.00 0.10 0.00 0.08
52 4.0383 0.00 -0.11 0.00 -0.05
53 4.0383 0.00 -0.02 0.00 0.20
54 4.0988 0.00 -0.05 0.00 0.07
55 4.1832 0.00 0.03 0.00 -0.05
56 4.1832 0.00 0.33 0.00 0.04
57 4.1832 0.00 0.08 0.00 0.04
58 4.1833 0.00 0.16 0.00 -0.08
59 4.8056 0.00 0.07 0.00 -0.23
60 4.8520 0.00 0.14 0.00 -0.01
61 4.8521 0.00 0.07 0.00 0.19
62 4.8521 0.00 0.12 0.00 0.55
63 4.8521 0.00 0.20 0.00 0.21
64 5.0132 0.00 -0.01 0.00 0.00
65 5.0132 0.00 -0.04 0.00 -0.19
66 5.0133 0.00 0.03 0.00 -0.01
67 5.0133 0.00 -0.02 0.00 0.02
68 5.1635 0.00 -0.07 0.00 -0.06
69 5.9143 0.00 0.03 0.00 0.04
70 5.9143 0.00 -0.07 0.00 -0.01
71 5.9144 0.00 -0.18 0.00 0.02
72 5.9144 0.00 -0.24 0.00 -0.13
73 6.1409 0.00 0.14 0.00 -0.03
74 6.1409 0.00 0.05 0.00 -0.10
75 6.1409 0.00 0.11 0.00 -0.05
76 6.1410 0.00 0.28 0.00 0.16
77 6.8425 0.00 0.10 0.00 -0.00
78 6.8862 0.00 -0.16 0.00 -0.05
79 6.8862 0.00 -0.08 0.00 -0.14
80 6.8863 0.00 -0.38 0.00 0.15
81 6.8863 0.00 0.06 0.00 0.04
82 6.9081 0.00 0.23 0.00 0.12
83 6.9081 0.00 0.06 0.00 -0.04
84 6.9081 0.00 0.12 0.00 -0.15
85 6.9082 0.00 0.12 0.00 0.05
86 6.9517 0.00 0.03 0.00 0.03
87 6.9518 0.00 0.02 0.00 0.03
88 6.9518 0.00 -0.00 0.00 -0.01
89 6.9518 0.00 0.08 0.00 -0.09
90 7.0474 0.00 0.17 0.00 0.06
91 7.0474 0.00 0.15 0.00 -0.08
92 7.0475 0.00 0.03 0.00 -0.13
93 7.0475 0.00 -0.14 0.00 0.28
94 7.0994 0.00 -0.06 0.00 0.10
95 7.1267 0.00 -1.07 0.00 0.26
96 10.0262 0.00 0.28 0.00 -0.03
97 10.0263 0.00 0.19 0.00 -0.01
98 10.0263 0.00 -0.05 0.00 -0.04
99 10.0264 0.00 -0.05 0.00 -0.07
100 11.0120 0.00 -0.09 0.00 -0.08
101 11.0120 0.00 -0.21 0.00 -0.04
102 11.0120 0.00 0.01 0.00 0.10
103 13.0270 0.00 0.16 0.00 0.06
104 13.0271 0.00 0.26 0.00 0.22
105 13.0271 0.00 -0.08 0.00 -0.16
106 13.0271 0.00 0.15 0.00 -0.14
107 13.0378 0.00 -0.16 0.00 -0.08
108 13.0378 0.00 -0.09 0.00 0.15
109 13.0379 0.00 -0.08 0.00 -0.04
110 13.0379 0.00 -0.07 0.00 -0.18
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.
690822 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.444 39.444 39.444 ecceobj 0.168 0.168 0.168 incobj 3.288 3.288 3.288 qmin 31.878 31.876 31.879 qmax 47.600 47.600 47.601 amean 39.457 39.457 39.457 amin 39.014 39.014 39.014 amax 39.947 39.947 39.947 emean 0.175 0.175 0.175 emin 0.159 0.159 0.160 emax 0.192 0.192 0.192 imean 1.545 1.545 1.545 imin 1.097 1.097 1.097 imax 2.048 2.048 2.047 excite_mean 0.177 0.177 0.177 fracstop 1.000 1.000 1.000 cjmean 3.016 3.016 3.016 libcent 0 180.1 180.1 180.0 libamp 0 79.9 80.0 79.8 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 170.1 170.1 170.1 kozaiamp 180.0 180.0 179.9