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 Sun Dec 22 02:10:55 2024 # Orbit generated from Bernstein formalism # Fitting 97 observations of 104 # Arc: 2.27y # First observation: 2016/12/25 # Last observation: 2019/04/05 Preliminary a, adot, b, bdot, g, gdot: 0.000017 0.027852 0.000005 0.006923 0.027080 0.000000 # Chi-squared of fit: 88.40 DOF: 188 RMS: 0.17 # Min/Max residuals: -0.49 0.49 # Exact a, adot, b, bdot, g, gdot: 1.634786E-05 2.761481E-02 1.772043E-06 6.893007E-03 2.676132E-02 1.531814E-03 # Covariance matrix: 5.8684E-14 2.0358E-14 4.0644E-15 6.5526E-15 7.8842E-14 5.2232E-13 2.0358E-14 4.6090E-12 -1.8944E-13 2.1752E-12 1.4640E-12 1.6437E-10 4.0644E-15 -1.8944E-13 2.8087E-14 -1.1719E-13 -5.2068E-14 -7.1037E-12 6.5526E-15 2.1752E-12 -1.1719E-13 1.1837E-12 6.8590E-13 8.0105E-11 7.8842E-14 1.4640E-12 -5.2068E-14 6.8590E-13 5.8483E-13 5.1875E-11 5.2232E-13 1.6437E-10 -7.1037E-12 8.0105E-11 5.1875E-11 6.0524E-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: 16.80056 +/- 1.296 Argument of Peri: 304.17106 +/- 1.603 Long of Asc Node: 185.11988 +/- 0.001 Inclination: 16.69441 +/- 0.001 Eccentricity: 0.09684303 +/- 0.0012 Semi-Major Axis: 41.71595918 +/- 0.0177 Time of Perihelion: 2453147.7469 +/- 354.2 Perihelion: 37.67605919 +/- 0.0543 Aphelion: 45.75585917 +/- 0.0554 Period (y) 269.4397 +/- 0.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.64494144 +/- 0.0009 Ecliptic Y 18.16698025 +/- 0.0005 Ecliptic Z -6.30038700 +/- 0.0002 Ecliptic XDOT -0.00155747 +/- 0.0000 Ecliptic YDOT -0.00237792 +/- 0.0000 Ecliptic ZDOT 0.00066863 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.88701953 +/- 0.0008 Geocenter to KBO 37.36737145 +/- 0.0011 # Hcoef: 9.50
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 30.39870 10 00 35.92 +01 45 37.2 24.8i 17BG233 T09 C~8Q43 2017 01 30.40253 10 00 35.90 +01 45 37.1 25.1i 17BG233 T09 C~8Q43 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 30.44278 10 00 35.72 +01 45 37.4 25.2i 17BG233 T09 C~8Q43 2017 01 30.44661 10 00 35.71 +01 45 37.4 25.3i 17BG233 T09 C~7zpa 2017 01 30.46494 10 00 35.62 +01 45 37.7 25.3i 17BG233 T09 C~8Q43 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 30.51687 10 00 35.36 +01 45 39.3 25.4z 17BG233 T09 C~8Q43 2017 01 30.53514 10 00 35.29 +01 45 39.4 25.4z 17BG233 T09 C~7zpa 2017 01 30.54618 10 00 35.26 +01 45 40.3 24.5z 17BG233 T09 C~8Q43 2017 01 30.55001 10 00 35.22 +01 45 40.1 25.2z 17BG233 T09 C~8Q43 2017 01 30.55385 10 00 35.20 +01 45 39.6 24.8z 17BG233 T09 C~8Q43 2017 01 30.56478 10 00 35.13 +01 45 40.9 24.2z 17BG233 T09 C~8Q43 2017 01 30.57208 10 00 35.11 +01 45 40.4 25.1z 17BG233 T09 C~8Q43 2017 01 30.57591 10 00 35.09 +01 45 40.4 26.0z 17BG233 T09 C~7zpa 2017 01 30.57975 10 00 35.07 +01 45 40.4 24.6z 17BG233 T09 C~8Q43 2017 01 30.59058 10 00 35.02 +01 45 40.9 25.0z 17BG233 T09 C~8Q43 2017 01 30.59788 10 00 34.97 +01 45 41.1 24.8z 17BG233 T09 C~8Q43 2017 01 30.60170 10 00 34.96 +01 45 40.8 24.4z 17BG233 T09 C~8Q43 2017 01 30.61243 10 00 34.95 +01 45 41.3 24.2z 17BG233 T09 C~8Q43 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 0.12
3 0.0001 -1.89 -0.14 -1.35 -0.38
4 0.0002 -2.35 -0.32 -0.99 0.06
5 0.0218 -326.60 0.15 -74.62 0.01
6 0.0218 -326.95 -0.02 -74.54 0.13
7 0.0218 -327.09 0.02 -74.59 0.11
8 0.0218 -327.16 0.13 -74.83 -0.09
9 0.0218 -327.65 -0.17 -74.80 -0.03
10 0.0219 -327.93 0.08 -74.90 -0.03
11 0.0219 -328.43 -0.09 -74.88 0.06
12 0.0219 -329.44 -0.11 -75.15 -0.03
13 0.0736 -1423.29 -0.18 -202.24 0.04
14 0.0737 -1423.64 -0.01 -202.58 -0.26
15 0.0737 -1423.85 0.05 -202.45 -0.11
16 0.0737 -1424.34 -0.04 -202.42 -0.05
17 0.0738 -1426.45 0.02 -202.36 0.17
18 0.0738 -1426.94 0.06 -202.76 -0.19
19 0.0738 -1428.24 -0.22 -202.71 -0.07
20 0.0738 -1428.38 -0.10 -202.76 -0.10
21 0.0738 -1428.24 0.30 -202.71 -0.03
22 0.0739 -1429.68 0.14 -202.72 0.06
23 0.0740 -1431.08 0.27 -203.24 -0.35
24 0.0789 -1554.45 -0.13 -210.40 0.23
25 0.0790 -1556.88 -0.18 -210.77 0.01
26 0.0790 -1558.10 0.49 -210.91 -0.01
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 0.05
32 0.0794 -1567.33 -0.09 -211.50 -0.04
33 0.0794 -1569.12 0.04 -211.85 -0.27
34 0.0982 -2064.42 ( -0.64) -232.68 ( 0.81)
35 0.0982 -2064.66 ( -0.59) -232.88 ( 0.62)
36 0.0982 -2065.01 0.16 -233.22 0.31
37 0.0982 -2065.22 0.23 -233.51 0.03
38 0.0982 -2065.86 -0.11 -233.54 0.02
39 0.0983 -2067.30 -0.16 -233.54 0.06
40 0.0983 -2067.44 -0.01 -233.60 0.02
41 0.0983 -2068.80 0.01 -233.79 -0.12
42 0.0984 -2069.09 0.02 -233.90 -0.22
43 0.0985 -2071.89 0.30 -233.67 0.12
44 0.0985 -2072.31 0.17 -233.83 -0.03
45 0.0985 -2073.02 -0.24 -233.66 0.15
46 0.0985 -2074.03 0.13 -233.94 -0.08
47 0.0986 -2074.77 ( 0.23) -233.26 ( 0.64)
48 0.0986 -2075.26 0.03 -233.65 0.25
49 0.0986 -2075.37 0.22 -234.23 -0.31
50 0.0986 -2076.81 ( -0.39) -233.38 ( 0.56)
51 0.0986 -2076.91 0.06 -233.95 0.01
52 0.0986 -2077.19 0.07 -234.06 -0.08
53 0.0987 -2077.47 0.08 -234.16 -0.18
54 0.0987 -2078.35 0.03 -233.96 0.05
55 0.0987 -2079.12 -0.19 -234.04 -0.00
56 0.0987 -2079.16 0.07 -234.37 -0.33
57 0.0987 -2079.48 ( 0.57) -233.95 ( 0.12)
58 0.1582 -3802.83 0.35 -216.93 0.35
59 0.1582 -3803.53 -0.03 -217.20 0.07
60 0.1582 -3803.74 0.07 -217.06 0.19
61 0.1583 -3804.76 -0.06 -216.91 0.31
62 0.1583 -3805.11 0.18 -217.25 -0.06
63 0.1583 -3805.82 0.11 -217.52 -0.35
64 0.1583 -3807.11 0.30 -217.47 -0.36
65 0.1584 -3807.75 -0.02 -217.07 0.03
66 0.1584 -3808.45 ( -0.41) -216.48 ( 0.60)
67 0.1584 -3808.73 0.21 -217.44 -0.39
68 0.1584 -3809.64 -0.11 -216.71 0.31
69 0.1584 -3809.64 0.21 -217.14 -0.13
70 0.1585 -3810.87 -0.11 -216.85 0.12
71 0.1637 -3965.56 -0.18 -209.31 -0.28
72 0.1637 -3966.22 -0.18 -208.82 0.19
73 0.1640 -3976.65 -0.25 -208.78 -0.27
74 0.1641 -3976.83 0.24 -208.31 0.16
75 0.1641 -3978.06 0.14 -208.45 -0.03
76 0.1641 -3978.76 -0.10 -208.29 0.11
77 0.1641 -3979.50 0.28 -208.46 -0.11
78 0.1642 -3979.99 0.11 -208.43 -0.10
79 0.1642 -3980.76 -0.00 -208.50 -0.21
80 0.1693 -4131.03 -0.16 -199.51 -0.07
81 0.1694 -4134.78 0.00 -198.89 0.33
82 0.1694 -4135.41 0.00 -198.92 0.28
83 0.1694 -4136.50 -0.18 -199.00 0.14
84 0.1695 -4136.92 -0.00 -199.16 -0.05
85 0.1882 -4684.65 -0.30 -158.10 -0.06
86 0.1883 -4686.86 0.14 -157.76 0.07
87 0.1883 -4688.87 -0.13 -157.55 0.14
88 0.1884 -4690.62 -0.14 -157.56 -0.02
89 0.1884 -4690.83 -0.04 -157.43 0.09
90 0.1886 -4697.92 -0.17 -156.88 0.07
91 0.1886 -4698.17 -0.11 -157.08 -0.16
92 0.1887 -4699.93 -0.11 -156.67 0.11
93 0.1887 -4700.73 -0.06 -156.66 0.06
94 0.1888 -4701.68 -0.12 -156.69 -0.05
95 0.1888 -4702.14 ( 0.27) -155.90 ( 0.67)
96 0.1888 -4703.33 -0.04 -156.56 -0.06
97 0.1943 -4859.02 0.14 -142.10 -0.11
98 0.1943 -4859.58 0.22 -141.89 0.05
99 0.1943 -4861.02 -0.13 -141.89 -0.06
100 1.0621 4597.39 -0.05 1247.76 0.11
101 1.0621 4595.56 0.04 1247.50 0.02
102 1.0623 4592.19 0.11 1247.08 -0.09
103 2.2719 4668.81 0.03 3022.58 0.06
104 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 41.594 41.683 41.509 ecceobj 0.095 0.100 0.090 incobj 16.746 16.746 16.747 qmin 36.715 36.706 36.996 qmax 46.662 46.868 46.296 amean 41.584 41.658 41.497 amin 41.257 41.335 41.175 amax 41.940 42.024 41.848 emean 0.095 0.099 0.091 emin 0.079 0.084 0.077 emax 0.114 0.116 0.107 imean 17.052 17.050 17.049 imin 16.324 16.345 16.335 imax 17.821 17.769 17.767 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 176.0 176.8 177.1 kozaiamp 179.9 180.0 180.0