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: 19UD174 # Created Sun Dec 22 02:11:10 2024 # Orbit generated from Bernstein formalism # Fitting 86 observations of 86 # Arc: 68.10d # First observation: 2019/09/27 # Last observation: 2019/12/04 Preliminary a, adot, b, bdot, g, gdot: -0.000036 0.029066 0.000013 -0.003281 0.025904 0.000000 # Chi-squared of fit: 55.18 DOF: 166 RMS: 0.14 # Min/Max residuals: -0.38 0.58 # Exact a, adot, b, bdot, g, gdot: 1.610003E-05 2.587707E-02 -2.453915E-06 -3.158139E-03 2.544788E-02 2.721788E-03 # Covariance matrix: 1.1218E-13 -1.1731E-12 2.7665E-16 -1.6289E-14 1.4531E-13 6.3846E-11 -1.1731E-12 1.5406E-09 8.1067E-12 -6.6413E-11 2.3786E-10 -4.9063E-09 2.7665E-16 8.1067E-12 1.0992E-13 -8.2853E-13 1.2777E-12 -2.0472E-11 -1.6289E-14 -6.6413E-11 -8.2853E-13 7.4383E-12 -1.0546E-11 1.4855E-10 1.4531E-13 2.3786E-10 1.2777E-12 -1.0546E-11 3.8261E-11 -4.1319E-10 6.3846E-11 -4.9063E-09 -2.0472E-11 1.4855E-10 -4.1319E-10 9.9880E-08 # lat0 lon0 xBary yBary zBary JD0 -17.168728 31.364244 0.457776 -0.262470 -0.849499 2458753.852041 # Heliocentric elements and errors Epoch: 2458750.5000 = 2019/09/24 Mean Anomaly: 45.47136 +/- 2.501 Argument of Peri: 191.07041 +/- 3.796 Long of Asc Node: 144.16144 +/- 0.030 Inclination: 18.21478 +/- 0.004 Eccentricity: 0.12129162 +/- 0.0104 Semi-Major Axis: 43.47524763 +/- 0.1229 Time of Perihelion: 2445525.4617 +/- 725.3 Perihelion: 38.20206422 +/- 0.4653 Aphelion: 48.74843105 +/- 0.4731 Period (y) 286.6628 +/- 1.22 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.05883063 +/- 0.0078 Ecliptic Y 19.60611131 +/- 0.0047 Ecliptic Z -11.59973457 +/- 0.0028 Ecliptic XDOT -0.00128727 +/- 0.0000 Ecliptic YDOT 0.00247153 +/- 0.0000 Ecliptic ZDOT -0.00041130 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.14772379 +/- 0.0069 Geocenter to KBO 39.29600298 +/- 0.0096 # Hcoef: 8.87
The following table shows the complete astrometric record for 19UD174. 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 (19UD174) followed by the observatory code and reference code for the source of the astrometry.
2019 09 27.35124 02 20 27.33 -04 11 14.9 25.5g 19UD174 T09 C~8MjL 2019 09 27.44152 02 20 26.99 -04 11 18.1 25.4g 19UD174 T09 C~8MjL 2019 09 27.53672 02 20 26.61 -04 11 21.5 25.2g 19UD174 T09 C~8MjL 2019 09 29.44039 02 20 19.21 -04 12 28.4 25.4r 19UD174 T09 C~7xXE 2019 09 29.45166 02 20 19.18 -04 12 29.1 25.0r 19UD174 T09 C~7xXE 2019 09 29.45729 02 20 19.15 -04 12 29.3 24.9r 19UD174 T09 C~7xXE 2019 09 29.46287 02 20 19.12 -04 12 29.4 25.2r 19UD174 T09 C~7xXE 2019 09 29.46854 02 20 19.09 -04 12 29.6 25.0r 19UD174 T09 C~7xXE 2019 09 29.49462 02 20 18.99 -04 12 30.4 24.5i 19UD174 T09 C~7xXE 2019 09 29.50563 02 20 18.94 -04 12 30.8 24.7i 19UD174 T09 C~7xXE 2019 09 29.51293 02 20 18.91 -04 12 31.1 24.6i 19UD174 T09 C~7xXE 2019 09 29.51677 02 20 18.91 -04 12 31.3 25.0i 19UD174 T09 C~7xXE 2019 09 29.52392 02 20 18.88 -04 12 31.4 24.6i 19UD174 T09 C~7xXE 2019 09 29.53122 02 20 18.83 -04 12 31.8 24.7i 19UD174 T09 C~7xXE 2019 09 29.54224 02 20 18.79 -04 12 32.1 24.6i 19UD174 T09 C~7xXE 2019 10 23.49622 02 18 32.78 -04 25 20.6 24.8z 19UD174 T09 C~7xXE 2019 10 23.50004 02 18 32.76 -04 25 20.6 24.7z 19UD174 T09 C~7xXE 2019 10 23.50387 02 18 32.73 -04 25 20.9 24.6z 19UD174 T09 C~7xXE 2019 10 23.51827 02 18 32.67 -04 25 21.1 24.8z 19UD174 T09 C~7xXE 2019 10 23.52209 02 18 32.66 -04 25 21.4 24.5z 19UD174 T09 C~7xXE 2019 10 23.54029 02 18 32.57 -04 25 21.9 24.3z 19UD174 T09 C~7xXE 2019 10 23.54411 02 18 32.54 -04 25 21.9 24.4z 19UD174 T09 C~7xXE 2019 10 23.54794 02 18 32.54 -04 25 22.1 24.3z 19UD174 T09 C~7xXE 2019 10 23.56228 02 18 32.46 -04 25 22.6 24.6z 19UD174 T09 C~7xXE 2019 10 23.56611 02 18 32.44 -04 25 22.8 24.3z 19UD174 T09 C~7xXE 2019 10 27.29655 02 18 14.67 -04 27 04.0 25.3r 19UD174 T09 C~7xXE 2019 10 27.30773 02 18 14.60 -04 27 04.2 25.2r 19UD174 T09 C~7xXE 2019 10 27.31891 02 18 14.55 -04 27 04.5 25.2r 19UD174 T09 C~7xXE 2019 10 27.41777 02 18 14.06 -04 27 07.1 24.8i 19UD174 T09 C~7xXE 2019 10 27.43985 02 18 13.95 -04 27 07.7 25.1i 19UD174 T09 C~7xXE 2019 10 27.45429 02 18 13.89 -04 27 08.1 25.0i 19UD174 T09 C~7xXE 2019 10 27.45813 02 18 13.88 -04 27 08.2 24.9i 19UD174 T09 C~7xXE 2019 10 27.47257 02 18 13.79 -04 27 08.7 25.1i 19UD174 T09 C~7xXE 2019 10 31.48092 02 17 54.59 -04 28 49.8 25.0z 19UD174 T09 C~7xXE 2019 10 31.48475 02 17 54.58 -04 28 50.2 24.5z 19UD174 T09 C~7xXE 2019 10 31.48859 02 17 54.56 -04 28 50.2 24.2z 19UD174 T09 C~7xXE 2019 10 31.50302 02 17 54.48 -04 28 50.3 24.6z 19UD174 T09 C~7xXE 2019 10 31.52506 02 17 54.37 -04 28 51.0 24.5z 19UD174 T09 C~7xXE 2019 10 31.52889 02 17 54.37 -04 28 51.3 24.3z 19UD174 T09 C~7xXE 2019 10 31.53272 02 17 54.32 -04 28 51.5 23.8z 19UD174 T09 C~7xXE 2019 10 31.54707 02 17 54.28 -04 28 51.7 24.4z 19UD174 T09 C~7xXE 2019 10 31.55090 02 17 54.25 -04 28 52.0 24.2z 19UD174 T09 C~7xXE 2019 11 01.36371 02 17 50.38 -04 29 11.3 25.5g 19UD174 T09 C~7xXE 2019 11 01.43281 02 17 50.03 -04 29 13.2 25.1g 19UD174 T09 C~7xXE 2019 11 01.44414 02 17 49.97 -04 29 13.4 25.2g 19UD174 T09 C~7xXE 2019 11 01.53430 02 17 49.54 -04 29 15.4 25.3g 19UD174 T09 C~7xXE 2019 11 01.58288 02 17 49.30 -04 29 16.5 25.1g 19UD174 T09 C~7xXE 2019 11 02.26339 02 17 46.04 -04 29 32.5 24.6i 19UD174 T09 C~7xXE 2019 11 02.28153 02 17 45.98 -04 29 33.0 24.2i 19UD174 T09 C~7xXE 2019 11 02.28536 02 17 45.97 -04 29 32.9 25.1i 19UD174 T09 C~7xXE 2019 11 02.30351 02 17 45.86 -04 29 33.5 24.5i 19UD174 T09 C~7xXE 2019 11 02.31783 02 17 45.80 -04 29 33.9 24.2i 19UD174 T09 C~7xXE 2019 11 02.32166 02 17 45.79 -04 29 33.9 24.7i 19UD174 T09 C~7xXE 2019 11 27.19982 02 15 52.95 -04 36 13.6 24.1z 19UD174 T09 C~7xXE 2019 11 27.21803 02 15 52.87 -04 36 13.5 23.9z 19UD174 T09 C~7xXE 2019 11 27.22186 02 15 52.86 -04 36 13.0 24.4z 19UD174 T09 C~7xXE 2019 11 27.22568 02 15 52.85 -04 36 13.5 23.9z 19UD174 T09 C~7xXE 2019 11 27.23999 02 15 52.78 -04 36 13.6 24.5z 19UD174 T09 C~7xXE 2019 11 27.24382 02 15 52.76 -04 36 13.8 25.2z 19UD174 T09 C~7xXE 2019 11 27.24766 02 15 52.74 -04 36 13.8 24.1z 19UD174 T09 C~7xXE 2019 11 27.26197 02 15 52.69 -04 36 13.8 24.3z 19UD174 T09 C~7xXE 2019 11 27.26580 02 15 52.67 -04 36 14.1 24.1z 19UD174 T09 C~7xXE 2019 11 27.30664 02 15 52.50 -04 36 14.3 24.7i 19UD174 T09 C~7xXE 2019 11 27.31047 02 15 52.49 -04 36 14.3 24.6i 19UD174 T09 C~7xXE 2019 11 27.31430 02 15 52.47 -04 36 14.3 24.5i 19UD174 T09 C~7xXE 2019 11 27.32876 02 15 52.40 -04 36 14.5 25.0i 19UD174 T09 C~7xXE 2019 11 27.33643 02 15 52.37 -04 36 14.6 24.9i 19UD174 T09 C~7xXE 2019 11 27.37685 02 15 52.21 -04 36 15.0 25.0i 19UD174 T09 C~7xXE 2019 11 27.44597 02 15 51.92 -04 36 15.8 24.8r 19UD174 T09 C~7xXE 2019 11 28.34819 02 15 48.27 -04 36 22.3 25.9g 19UD174 T09 C~7xXE 2019 11 28.35203 02 15 48.25 -04 36 22.3 26.0g 19UD174 T09 C~7xXE 2019 11 28.42490 02 15 47.96 -04 36 22.8 25.5g 19UD174 T09 C~7xXE 2019 11 29.32156 02 15 44.35 -04 36 29.0 25.6r 19UD174 T09 C~7xXE 2019 11 29.32540 02 15 44.33 -04 36 29.4 25.4r 19UD174 T09 C~7xXE 2019 11 29.33675 02 15 44.28 -04 36 29.4 25.9r 19UD174 T09 C~7xXE 2019 11 29.34058 02 15 44.28 -04 36 29.4 25.6r 19UD174 T09 C~7xXE 2019 12 04.29636 02 15 25.19 -04 36 53.8 24.8z 19UD174 T09 C~7xXE 2019 12 04.30020 02 15 25.15 -04 36 53.6 24.5z 19UD174 T09 C~7xXE 2019 12 04.32232 02 15 25.05 -04 36 53.8 24.9z 19UD174 T09 C~7xXE 2019 12 04.33681 02 15 25.02 -04 36 54.1 24.8z 19UD174 T09 C~7xXE 2019 12 04.34064 02 15 25.01 -04 36 54.3 24.2z 19UD174 T09 C~7xXE 2019 12 04.34447 02 15 24.98 -04 36 54.1 24.8z 19UD174 T09 C~7xXE 2019 12 04.38500 02 15 24.84 -04 36 54.3 24.9i 19UD174 T09 C~7xXE 2019 12 04.41091 02 15 24.75 -04 36 54.1 24.7i 19UD174 T09 C~7xXE 2019 12 04.43671 02 15 24.65 -04 36 54.1 25.1i 19UD174 T09 C~7xXE 2019 12 04.45483 02 15 24.57 -04 36 54.3 24.8i 19UD174 T09 C~7xXE
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 -0.00 0.00 0.10
2 0.0002 -5.87 0.16 -1.28 0.04
3 0.0005 -12.37 0.05 -2.54 0.04
4 0.0057 -139.24 0.06 -27.74 0.15
5 0.0058 -139.90 0.17 -28.25 -0.21
6 0.0058 -140.39 0.07 -28.28 -0.18
7 0.0058 -140.85 -0.00 -28.22 -0.05
8 0.0058 -141.34 -0.11 -28.26 -0.01
9 0.0059 -143.02 0.01 -28.50 0.07
10 0.0059 -143.86 -0.08 -28.62 0.09
11 0.0059 -144.38 -0.10 -28.75 0.05
12 0.0059 -144.45 0.09 -28.94 -0.09
13 0.0059 -144.91 0.13 -28.88 0.05
14 0.0060 -145.75 -0.21 -29.00 0.02
15 0.0060 -146.41 -0.12 -29.08 0.08
16 0.0716 -1898.98 0.02 -212.22 0.02
17 0.0716 -1899.26 0.03 -212.12 0.13
18 0.0716 -1899.78 -0.19 -212.25 0.00
19 0.0716 -1900.70 0.01 -212.13 0.15
20 0.0717 -1900.94 0.06 -212.36 -0.08
21 0.0717 -1902.38 0.04 -212.38 -0.06
22 0.0717 -1902.80 -0.09 -212.22 0.10
23 0.0717 -1902.87 0.14 -212.41 -0.08
24 0.0718 -1904.16 -0.05 -212.48 -0.12
25 0.0718 -1904.51 -0.10 -212.56 -0.20
26 0.0820 -2188.86 0.08 -217.40 -0.02
27 0.0820 -2189.92 -0.11 -217.23 0.15
28 0.0820 -2190.72 -0.05 -217.26 0.12
29 0.0823 -2198.50 -0.17 -217.22 0.17
30 0.0824 -2200.25 -0.21 -217.22 0.16
31 0.0824 -2201.23 -0.07 -217.29 0.09
32 0.0824 -2201.40 0.05 -217.34 0.05
33 0.0825 -2202.84 -0.27 -217.35 0.03
34 0.0934 -2507.27 0.11 -214.86 0.20
35 0.0935 -2507.55 0.12 -215.19 -0.13
36 0.0935 -2507.83 0.14 -215.09 -0.04
37 0.0935 -2508.99 0.09 -214.77 0.24
38 0.0936 -2510.78 -0.01 -214.87 0.10
39 0.0936 -2510.88 0.18 -215.16 -0.19
40 0.0936 -2511.65 -0.29 -215.09 -0.13
41 0.0936 -2512.28 0.17 -215.08 -0.14
42 0.0936 -2512.80 -0.06 -215.20 -0.28
43 0.0959 -2573.80 0.20 -213.69 -0.10
44 0.0960 -2579.37 -0.07 -213.70 -0.27
45 0.0961 -2580.28 -0.11 -213.59 -0.18
46 0.0963 -2587.01 0.07 -213.28 -0.10
47 0.0965 -2590.76 0.02 -213.10 -0.03
48 0.0983 -2642.05 -0.30 -211.58 0.12
49 0.0984 -2643.07 0.06 -211.75 -0.09
50 0.0984 -2643.18 0.25 -211.61 0.04
51 0.0984 -2644.93 -0.12 -211.61 -0.01
52 0.0985 -2645.91 -0.01 -211.68 -0.12
53 0.0985 -2646.05 0.15 -211.63 -0.08
54 0.1666 -4369.32 0.01 -14.88 -0.15
55 0.1666 -4370.42 0.03 -14.38 0.11
56 0.1667 -4370.39 0.30 -13.86 0.58
57 0.1667 -4370.70 0.22 -14.28 0.11
58 0.1667 -4371.72 0.08 -14.02 0.18
59 0.1667 -4372.07 -0.03 -14.10 0.04
60 0.1667 -4372.35 -0.08 -14.00 0.09
61 0.1668 -4373.05 0.10 -13.75 0.15
62 0.1668 -4373.43 -0.05 -13.93 -0.08
63 0.1669 -4375.89 0.00 -13.25 0.04
64 0.1669 -4376.03 0.10 -13.20 0.04
65 0.1669 -4376.32 0.05 -13.10 0.08
66 0.1669 -4377.37 -0.11 -12.94 0.05
67 0.1670 -4377.83 -0.09 -12.88 0.01
68 0.1671 -4380.21 0.01 -12.44 -0.11
69 0.1673 -4384.56 -0.10 -11.72 -0.34
70 0.1697 -4438.13 0.20 0.67 -0.01
71 0.1697 -4438.41 0.15 0.77 0.04
72 0.1699 -4442.67 0.31 1.77 0.01
73 0.1724 -4495.57 0.08 14.24 0.16
74 0.1724 -4495.99 -0.11 13.97 -0.17
75 0.1724 -4496.69 -0.13 14.22 -0.08
76 0.1725 -4496.69 0.10 14.22 -0.14
77 0.1860 -4773.62 0.17 88.05 -0.07
78 0.1860 -4774.12 -0.11 88.44 0.26
79 0.1861 -4775.59 -0.38 88.76 0.22
80 0.1861 -4776.12 -0.12 88.63 -0.15
81 0.1861 -4776.32 -0.12 88.49 -0.35
82 0.1862 -4776.68 -0.26 88.83 -0.07
83 0.1863 -4778.72 -0.10 89.36 -0.21
84 0.1863 -4779.92 0.11 90.00 0.02
85 0.1864 -4781.32 0.10 90.51 0.11
86 0.1865 -4782.52 -0.12 90.73 0.03
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.
19UD174 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.887 44.386 43.443 ecceobj 0.126 0.149 0.106 incobj 18.209 18.210 18.210 qmin 37.275 36.780 38.330 qmax 50.150 51.676 48.237 amean 43.571 44.045 43.128 amin 43.200 43.671 42.776 amax 43.971 44.449 43.514 emean 0.125 0.147 0.099 emin 0.108 0.132 0.089 emax 0.142 0.163 0.109 imean 17.012 17.002 17.186 imin 16.418 16.422 16.725 imax 17.581 17.550 17.681 excite_mean 0.318 0.327 0.312 fracstop 1.000 1.000 1.000 cjmean 2.974 2.972 2.974 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 181.2 187.8 185.2 kozaiamp 179.9 180.0 180.0