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: 17BG233 # Created Fri Nov 22 02:10:48 2024 # Orbit generated from Bernstein formalism # Fitting 87 observations of 89 # Arc: 2.27y # First observation: 2016/12/25 # Last observation: 2019/04/05 Preliminary a, adot, b, bdot, g, gdot: 0.000016 0.027853 0.000005 0.006922 0.027079 0.000000 # Chi-squared of fit: 79.86 DOF: 168 RMS: 0.17 # Min/Max residuals: -0.49 0.49 # Exact a, adot, b, bdot, g, gdot: 1.635474E-05 2.761469E-02 1.804266E-06 6.892936E-03 2.676128E-02 1.527748E-03 # Covariance matrix: 6.3078E-14 8.3487E-15 4.6268E-15 1.2708E-15 7.7796E-14 1.2122E-13 8.3487E-15 4.6688E-12 -1.9994E-13 2.2078E-12 1.4756E-12 1.6645E-10 4.6268E-15 -1.9994E-13 3.1121E-14 -1.2388E-13 -5.5072E-14 -7.4824E-12 1.2708E-15 2.2078E-12 -1.2388E-13 1.2022E-12 6.9298E-13 8.1251E-11 7.7796E-14 1.4756E-12 -5.5072E-14 6.9298E-13 5.8785E-13 5.2287E-11 1.2122E-13 1.6645E-10 -7.4824E-12 8.1251E-11 5.2287E-11 6.1251E-09 # lat0 lon0 xBary yBary zBary JD0 -9.706859 152.185646 0.841285 -0.086902 -0.509182 2457748.046949 # Heliocentric elements and errors Epoch: 2457740.5000 = 2016/12/18 Mean Anomaly: 16.73353 +/- 1.305 Argument of Peri: 304.25468 +/- 1.615 Long of Asc Node: 185.11992 +/- 0.001 Inclination: 16.69439 +/- 0.001 Eccentricity: 0.09677727 +/- 0.0012 Semi-Major Axis: 41.71500023 +/- 0.0178 Time of Perihelion: 2453166.2298 +/- 356.8 Perihelion: 37.67793647 +/- 0.0545 Aphelion: 45.75206399 +/- 0.0556 Period (y) 269.4304 +/- 0.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.64498031 +/- 0.0009 Ecliptic Y 18.16700047 +/- 0.0005 Ecliptic Z -6.30039327 +/- 0.0002 Ecliptic XDOT -0.00155711 +/- 0.0000 Ecliptic YDOT -0.00237810 +/- 0.0000 Ecliptic ZDOT 0.00066869 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.88706377 +/- 0.0008 Geocenter to KBO 37.36741570 +/- 0.0011 # Hcoef: 9.53
The following table shows the complete astrometric record for 17BG233. 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 (17BG233) followed by the observatory code and reference code for the source of the astrometry.
2016 12 25.54616 10 02 50.26 +01 37 08.7 25.8r 17BG233 T09 C~7zpZ 2016 12 25.54929 10 02 50.24 +01 37 08.4 25.6r 17BG233 T09 C~7zpZ 2016 12 25.59402 10 02 50.11 +01 37 08.1 25.7i 17BG233 T09 C~7zpZ 2016 12 25.60159 10 02 50.09 +01 37 08.6 25.5i 17BG233 T09 C~7zpa 2017 01 02.50080 10 02 28.12 +01 37 53.8 25.6i 17BG233 T09 C~7zpa 2017 01 02.50463 10 02 28.10 +01 37 54.0 25.4i 17BG233 T09 C~7zpa 2017 01 02.50845 10 02 28.09 +01 37 54.0 25.9i 17BG233 T09 C~7zpa 2017 01 02.51228 10 02 28.08 +01 37 53.8 25.6i 17BG233 T09 C~7zpa 2017 01 02.51611 10 02 28.05 +01 37 54.0 25.5i 17BG233 T09 C~7zpa 2017 01 02.52725 10 02 28.03 +01 37 54.0 25.2i 17BG233 T09 C~7zpa 2017 01 02.53399 10 02 28.00 +01 37 54.2 25.0i 17BG233 T09 C~7zpa 2017 01 02.55486 10 02 27.93 +01 37 54.3 25.7i 17BG233 T09 C~7zpa 2017 01 21.44099 10 01 16.66 +01 42 20.2 25.6z 17BG233 T09 C~7zpa 2017 01 21.44850 10 01 16.63 +01 42 20.0 24.7z 17BG233 T09 C~7zpa 2017 01 21.45233 10 01 16.62 +01 42 20.2 25.3z 17BG233 T09 C~7zpa 2017 01 21.45826 10 01 16.59 +01 42 20.4 24.6z 17BG233 T09 C~7zpa 2017 01 21.48947 10 01 16.46 +01 42 21.2 25.7z 17BG233 T09 C~7zpa 2017 01 21.49713 10 01 16.42 +01 42 21.0 24.7z 17BG233 T09 C~7zpa 2017 01 21.51187 10 01 16.34 +01 42 21.5 25.6z 17BG233 T09 C~7zpa 2017 01 21.51563 10 01 16.33 +01 42 21.5 25.0z 17BG233 T09 C~7zpa 2017 01 21.51947 10 01 16.34 +01 42 21.5 24.6z 17BG233 T09 C~7zpa 2017 01 21.53790 10 01 16.25 +01 42 22.0 25.4z 17BG233 T09 C~7zpa 2017 01 21.56003 10 01 16.15 +01 42 22.0 24.8z 17BG233 T09 C~7zpa 2017 01 23.35198 10 01 08.28 +01 42 58.7 26.0r 17BG233 T09 C~7zpa 2017 01 23.38565 10 01 08.12 +01 42 59.2 24.7r 17BG233 T09 C~7zpa 2017 01 23.41253 10 01 08.04 +01 42 59.5 25.7r 17BG233 T09 C~7zpa 2017 01 23.41467 10 01 08.01 +01 43 00.0 24.7r 17BG233 T09 C~7zpa 2017 01 23.44310 10 01 07.87 +01 43 00.5 25.3r 17BG233 T09 C~7zpa 2017 01 23.45235 10 01 07.80 +01 43 00.7 25.0r 17BG233 T09 C~7zpa 2017 01 23.50215 10 01 07.60 +01 43 01.7 25.4i 17BG233 T09 C~7zpa 2017 01 23.50600 10 01 07.58 +01 43 01.7 24.9i 17BG233 T09 C~7zpa 2017 01 23.53459 10 01 07.45 +01 43 02.2 25.3i 17BG233 T09 C~7zpa 2017 01 23.56169 10 01 07.33 +01 43 02.5 24.7i 17BG233 T09 C~7zpa 2017 01 30.41709 10 00 35.87 +01 45 36.9 25.3i 17BG233 T09 C~7zpa 2017 01 30.42076 10 00 35.85 +01 45 36.7 25.8i 17BG233 T09 C~7zpa 2017 01 30.42459 10 00 35.81 +01 45 36.9 24.7i 17BG233 T09 C~7zpa 2017 01 30.44661 10 00 35.71 +01 45 37.4 25.3i 17BG233 T09 C~7zpa 2017 01 30.46877 10 00 35.60 +01 45 37.7 26.0i 17BG233 T09 C~7zpa 2017 01 30.50920 10 00 35.43 +01 45 38.9 24.7z 17BG233 T09 C~7zpa 2017 01 30.51304 10 00 35.40 +01 45 38.9 24.8z 17BG233 T09 C~7zpa 2017 01 30.53514 10 00 35.29 +01 45 39.4 25.4z 17BG233 T09 C~7zpa 2017 01 30.57591 10 00 35.09 +01 45 40.4 26.0z 17BG233 T09 C~7zpa 2017 02 21.33121 09 58 47.76 +01 56 03.0 24.7z 17BG233 T09 C~7zpa 2017 02 21.33504 09 58 47.71 +01 56 03.0 23.9z 17BG233 T09 C~7zpa 2017 02 21.33887 09 58 47.70 +01 56 03.2 24.5z 17BG233 T09 C~7zpa 2017 02 21.34959 09 58 47.64 +01 56 03.7 24.4z 17BG233 T09 C~7zpa 2017 02 21.35676 09 58 47.61 +01 56 03.5 24.8z 17BG233 T09 C~7zpa 2017 02 21.36441 09 58 47.56 +01 56 03.5 23.6z 17BG233 T09 C~7zpa 2017 02 21.38235 09 58 47.48 +01 56 04.0 23.7z 17BG233 T09 C~7zpa 2017 02 21.38619 09 58 47.45 +01 56 04.6 24.6z 17BG233 T09 C~7zpa 2017 02 21.39002 09 58 47.42 +01 56 05.4 25.1z 17BG233 T09 C~7zpa 2017 02 21.40083 09 58 47.38 +01 56 04.6 24.5z 17BG233 T09 C~7zpa 2017 02 21.40807 09 58 47.34 +01 56 05.6 25.3z 17BG233 T09 C~7zpa 2017 02 21.41191 09 58 47.33 +01 56 05.2 24.8z 17BG233 T09 C~7zpa 2017 02 21.42282 09 58 47.26 +01 56 05.9 24.7z 17BG233 T09 C~7zpa 2017 02 23.32550 09 58 37.78 +01 57 07.3 26.4g 17BG233 T09 C~7zpa 2017 02 23.33356 09 58 37.75 +01 57 08.0 25.8g 17BG233 T09 C~7zpa 2017 02 23.45915 09 58 37.10 +01 57 11.7 26.2r 17BG233 T09 C~7zpa 2017 02 23.46720 09 58 37.10 +01 57 12.2 26.1r 17BG233 T09 C~7zpa 2017 02 23.48087 09 58 37.02 +01 57 12.5 25.6r 17BG233 T09 C~7zpa 2017 02 23.48645 09 58 36.98 +01 57 12.9 25.5r 17BG233 T09 C~7zpa 2017 02 23.50008 09 58 36.93 +01 57 13.0 25.9r 17BG233 T09 C~7zpa 2017 02 23.50391 09 58 36.90 +01 57 13.2 25.9r 17BG233 T09 C~7zpa 2017 02 23.51193 09 58 36.85 +01 57 13.4 25.9r 17BG233 T09 C~7zpa 2017 02 25.36493 09 58 27.68 +01 58 14.6 24.6i 17BG233 T09 C~7zpa 2017 02 25.41253 09 58 27.46 +01 58 16.5 24.7i 17BG233 T09 C~7zpa 2017 02 25.42020 09 58 27.42 +01 58 16.7 25.5i 17BG233 T09 C~7zpa 2017 02 25.43124 09 58 27.35 +01 58 17.0 25.2i 17BG233 T09 C~7zpa 2017 02 25.43849 09 58 27.32 +01 58 17.0 25.1i 17BG233 T09 C~7zpa 2017 03 04.27420 09 57 54.09 +02 02 07.8 24.5z 17BG233 T09 C~7zpa 2017 03 04.30733 09 57 53.96 +02 02 08.9 23.9z 17BG233 T09 C~7zpa 2017 03 04.32902 09 57 53.84 +02 02 09.8 24.3z 17BG233 T09 C~7zpa 2017 03 04.35080 09 57 53.73 +02 02 10.4 24.5z 17BG233 T09 C~7zpa 2017 03 04.35463 09 57 53.72 +02 02 10.6 23.8z 17BG233 T09 C~7zpa 2017 03 04.44130 09 57 53.29 +02 02 13.6 25.1i 17BG233 T09 C~7zpa 2017 03 04.44514 09 57 53.27 +02 02 13.5 24.5i 17BG233 T09 C~7zpa 2017 03 04.46710 09 57 53.17 +02 02 14.5 24.5i 17BG233 T09 C~7zpa 2017 03 04.47782 09 57 53.12 +02 02 14.8 24.9i 17BG233 T09 C~7zpa 2017 03 04.48885 09 57 53.06 +02 02 15.1 24.9i 17BG233 T09 C~7zpa 2017 03 04.49952 09 57 53.05 +02 02 16.0 24.6i 17BG233 T09 C~7zpa 2017 03 04.51049 09 57 52.96 +02 02 15.8 24.7i 17BG233 T09 C~7zpa 2017 03 06.49634 09 57 43.58 +02 03 24.0 25.8r 17BG233 T09 C~7zpa 2017 03 06.50449 09 57 43.55 +02 03 24.4 26.2r 17BG233 T09 C~7zpa 2017 03 06.51829 09 57 43.46 +02 03 24.9 25.1r 17BG233 T09 C~7zpa 2018 01 17.46122 10 08 06.47 +01 29 37.1 25.2i 17BG233 T09 C~81Bn 2018 01 17.49135 10 08 06.35 +01 29 37.5 25.7i 17BG233 T09 C~81Bn 2018 01 17.54536 10 08 06.13 +01 29 38.3 25.1i 17BG233 T09 C~81Bn 2019 04 04.364139 10 08 52.64 +01 56 52.2 17BG233 T09 C~81Bn 2019 04 05.358918 10 08 49.39 +01 57 24.9 17BG233 T09 C~81Bn
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 -0.01 0.00 0.47
2 0.0000 -0.18 -0.07 -0.39 0.11
3 0.0001 -1.89 -0.14 -1.35 -0.39
4 0.0002 -2.35 -0.32 -0.99 0.05
5 0.0218 -326.60 0.14 -74.62 0.01
6 0.0218 -326.95 -0.02 -74.54 0.12
7 0.0218 -327.09 0.02 -74.59 0.10
8 0.0218 -327.16 0.13 -74.83 -0.10
9 0.0218 -327.65 -0.18 -74.80 -0.04
10 0.0219 -327.93 0.08 -74.90 -0.04
11 0.0219 -328.43 -0.09 -74.88 0.05
12 0.0219 -329.44 -0.11 -75.15 -0.04
13 0.0736 -1423.29 -0.18 -202.24 0.04
14 0.0737 -1423.64 -0.01 -202.58 -0.27
15 0.0737 -1423.85 0.04 -202.45 -0.11
16 0.0737 -1424.34 -0.04 -202.42 -0.06
17 0.0738 -1426.45 0.02 -202.36 0.17
18 0.0738 -1426.94 0.05 -202.76 -0.19
19 0.0738 -1428.24 -0.22 -202.71 -0.07
20 0.0738 -1428.38 -0.10 -202.76 -0.11
21 0.0738 -1428.24 0.30 -202.71 -0.03
22 0.0739 -1429.68 0.14 -202.72 0.05
23 0.0740 -1431.08 0.27 -203.24 -0.36
24 0.0789 -1554.45 -0.13 -210.40 0.23
25 0.0790 -1556.88 -0.18 -210.77 -0.00
26 0.0790 -1558.10 0.49 -210.91 -0.02
27 0.0790 -1558.70 0.04 -210.61 0.30
28 0.0791 -1560.84 -0.09 -210.88 0.16
29 0.0791 -1561.89 -0.49 -211.06 0.02
30 0.0793 -1565.05 -0.11 -211.18 0.13
31 0.0793 -1565.33 -0.12 -211.28 0.04
32 0.0794 -1567.33 -0.09 -211.50 -0.05
33 0.0794 -1569.12 0.04 -211.85 -0.27
34 0.0982 -2065.01 0.16 -233.22 0.31
35 0.0982 -2065.22 0.23 -233.51 0.02
36 0.0982 -2065.86 -0.11 -233.54 0.01
37 0.0983 -2067.44 -0.01 -233.60 0.01
38 0.0984 -2069.09 0.02 -233.90 -0.22
39 0.0985 -2071.89 0.29 -233.67 0.11
40 0.0985 -2072.31 0.17 -233.83 -0.03
41 0.0985 -2074.03 0.13 -233.94 -0.08
42 0.0986 -2077.19 0.07 -234.06 -0.09
43 0.1582 -3802.83 0.35 -216.93 0.34
44 0.1582 -3803.53 -0.03 -217.20 0.07
45 0.1582 -3803.74 0.07 -217.06 0.19
46 0.1583 -3804.76 -0.06 -216.91 0.30
47 0.1583 -3805.11 0.18 -217.25 -0.07
48 0.1583 -3805.82 0.11 -217.52 -0.35
49 0.1583 -3807.11 0.29 -217.47 -0.37
50 0.1584 -3807.75 -0.02 -217.07 0.02
51 0.1584 -3808.45 ( -0.41) -216.48 ( 0.60)
52 0.1584 -3808.73 0.21 -217.44 -0.40
53 0.1584 -3809.64 -0.11 -216.71 0.30
54 0.1584 -3809.64 0.21 -217.14 -0.14
55 0.1585 -3810.87 -0.12 -216.85 0.11
56 0.1637 -3965.56 -0.18 -209.31 -0.28
57 0.1637 -3966.22 -0.18 -208.82 0.18
58 0.1640 -3976.65 -0.25 -208.78 -0.28
59 0.1641 -3976.83 0.24 -208.31 0.16
60 0.1641 -3978.06 0.14 -208.45 -0.04
61 0.1641 -3978.76 -0.10 -208.29 0.11
62 0.1641 -3979.50 0.28 -208.46 -0.12
63 0.1642 -3979.99 0.11 -208.43 -0.10
64 0.1642 -3980.76 -0.01 -208.50 -0.21
65 0.1693 -4131.03 -0.16 -199.51 -0.07
66 0.1694 -4134.78 0.00 -198.89 0.33
67 0.1694 -4135.41 0.00 -198.92 0.27
68 0.1694 -4136.50 -0.18 -199.00 0.13
69 0.1695 -4136.92 -0.00 -199.16 -0.06
70 0.1882 -4684.65 -0.30 -158.10 -0.06
71 0.1883 -4686.86 0.14 -157.76 0.06
72 0.1883 -4688.87 -0.13 -157.55 0.13
73 0.1884 -4690.62 -0.14 -157.56 -0.03
74 0.1884 -4690.83 -0.04 -157.43 0.08
75 0.1886 -4697.92 -0.18 -156.88 0.06
76 0.1886 -4698.17 -0.11 -157.08 -0.16
77 0.1887 -4699.93 -0.11 -156.67 0.11
78 0.1887 -4700.73 -0.06 -156.66 0.05
79 0.1888 -4701.68 -0.12 -156.69 -0.06
80 0.1888 -4702.14 ( 0.27) -155.90 ( 0.66)
81 0.1888 -4703.33 -0.04 -156.56 -0.07
82 0.1943 -4859.02 0.14 -142.10 -0.12
83 0.1943 -4859.58 0.22 -141.89 0.04
84 0.1943 -4861.02 -0.13 -141.89 -0.06
85 1.0621 4597.39 -0.05 1247.76 0.11
86 1.0621 4595.56 0.04 1247.50 0.02
87 1.0623 4592.19 0.11 1247.08 -0.08
88 2.2719 4668.81 0.03 3022.58 0.06
89 2.2746 4611.65 -0.09 3035.99 -0.07
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.
17BG233 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.593 41.683 41.508 ecceobj 0.095 0.100 0.090 incobj 16.746 16.746 16.747 qmin 36.757 36.714 36.978 qmax 46.663 46.861 46.223 amean 41.583 41.659 41.495 amin 41.239 41.329 41.169 amax 41.925 42.017 41.848 emean 0.095 0.099 0.090 emin 0.080 0.083 0.077 emax 0.114 0.116 0.106 imean 17.051 17.050 17.049 imin 16.325 16.348 16.341 imax 17.804 17.775 17.771 excite_mean 0.308 0.310 0.307 fracstop 1.000 1.000 1.000 cjmean 2.961 2.961 2.961 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 176.0 176.6 176.8 kozaiamp 180.0 179.9 179.9