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: 17BB241 # Created Sun Dec 22 02:10:56 2024 # Orbit generated from Bernstein formalism # Fitting 34 observations of 34 # Arc: 2.45y # First observation: 2016/11/25 # Last observation: 2019/05/09 Preliminary a, adot, b, bdot, g, gdot: 0.000011 0.021145 0.000008 0.003857 0.023105 0.000000 # Chi-squared of fit: 22.31 DOF: 62 RMS: 0.14 # Min/Max residuals: -0.41 0.29 # Exact a, adot, b, bdot, g, gdot: 1.347639E-05 2.075171E-02 3.289356E-06 3.803368E-03 2.265231E-02 2.201950E-04 # Covariance matrix: 2.7167E-13 5.2438E-13 6.5289E-14 9.4532E-14 6.8904E-13 1.3651E-11 5.2438E-13 3.1823E-12 1.3824E-13 1.0007E-12 2.6549E-12 1.4030E-10 6.5289E-14 1.3824E-13 9.1943E-14 -2.1244E-14 2.0316E-13 1.7438E-12 9.4532E-14 1.0007E-12 -2.1244E-14 4.2284E-13 6.6972E-13 5.3621E-11 6.8904E-13 2.6549E-12 2.0316E-13 6.6972E-13 2.7052E-12 9.4741E-11 1.3651E-11 1.4030E-10 1.7438E-12 5.3621E-11 9.4741E-11 7.4749E-09 # lat0 lon0 xBary yBary zBary JD0 -10.063835 151.134548 0.991046 -0.006850 -0.039705 2457718.123079 # Heliocentric elements and errors Epoch: 2457710.5000 = 2016/11/18 Mean Anomaly: 208.84511 +/- 6.882 Argument of Peri: 107.41456 +/- 6.885 Long of Asc Node: 194.19855 +/- 0.002 Inclination: 14.22599 +/- 0.000 Eccentricity: 0.02871327 +/- 0.0020 Semi-Major Axis: 43.10567628 +/- 0.0065 Time of Perihelion: 2501113.5073 +/- 1976.0 Perihelion: 41.86797130 +/- 0.0864 Aphelion: 44.34338127 +/- 0.0865 Period (y) 283.0153 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -37.62656514 +/- 0.0028 Ecliptic Y 21.86674790 +/- 0.0015 Ecliptic Z -7.71413026 +/- 0.0006 Ecliptic XDOT -0.00130178 +/- 0.0000 Ecliptic YDOT -0.00215183 +/- 0.0000 Ecliptic ZDOT 0.00044792 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.19752112 +/- 0.0025 Geocenter to KBO 44.14561232 +/- 0.0032 # Hcoef: 9.27
The following table shows the complete astrometric record for 17BB241. 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 (17BB241) followed by the observatory code and reference code for the source of the astrometry.
2016 11 25.622290 09 58 27.37 +01 38 50.6 17BB241 T09 C~86ul 2016 11 25.634062 09 58 27.36 +01 38 50.5 17BB241 T09 C~86ul 2016 11 25.637913 09 58 27.37 +01 38 50.6 17BB241 T09 C~86ul 2016 12 23.472294 09 57 59.18 +01 35 46.9 17BB241 T09 C~86ul 2016 12 23.49122 09 57 59.12 +01 35 47.1 24.5z 17BB241 T09 C~8COq 2016 12 23.50145 09 57 59.09 +01 35 47.0 24.9z 17BB241 T09 C~8COq 2017 01 21.43628 09 56 29.15 +01 40 01.2 25.5z 17BB241 T09 C~86ul 2017 01 21.48215 09 56 28.95 +01 40 01.8 25.2z 17BB241 T09 C~86ul 2017 01 21.50822 09 56 28.84 +01 40 02.2 24.8z 17BB241 T09 C~86ul 2017 01 21.53429 09 56 28.75 +01 40 02.7 25.3z 17BB241 T09 C~86ul 2017 01 21.55646 09 56 28.66 +01 40 03.2 25.5z 17BB241 T09 C~86ul 2017 01 23.36023 09 56 21.58 +01 40 33.1 26.1r 17BB241 T09 C~86ul 2017 01 23.37134 09 56 21.51 +01 40 32.9 25.7r 17BB241 T09 C~86ul 2017 01 23.39391 09 56 21.45 +01 40 33.8 26.2r 17BB241 T09 C~86ul 2017 01 23.41253 09 56 21.33 +01 40 33.8 25.8r 17BB241 T09 C~86ul 2017 01 23.43372 09 56 21.27 +01 40 34.3 25.4r 17BB241 T09 C~86ul 2017 01 23.51704 09 56 20.93 +01 40 35.8 25.7i 17BB241 T09 C~86ul 2017 01 23.52381 09 56 20.90 +01 40 35.8 25.6i 17BB241 T09 C~86ul 2017 01 23.53190 09 56 20.88 +01 40 36.0 25.0i 17BB241 T09 C~86ul 2017 01 23.55808 09 56 20.78 +01 40 36.5 25.5i 17BB241 T09 C~86ul 2017 01 23.58838 09 56 20.66 +01 40 36.6 25.3i 17BB241 T09 C~86ul 2017 02 02.568611 09 55 39.33 +01 43 49.0 17BB241 T09 C~86ul 2017 02 02.587992 09 55 39.24 +01 43 49.5 17BB241 T09 C~86ul 2019 04 04.290206 10 01 23.44 +01 45 31.4 17BB241 T09 C~86ul 2019 04 04.29405 10 01 23.40 +01 45 31.5 26.6g 17BB241 T09 C~8COq 2019 04 04.29788 10 01 23.41 +01 45 31.5 26.2g 17BB241 T09 C~8COq 2019 04 04.31319 10 01 23.37 +01 45 32.2 26.3g 17BB241 T09 C~8COq 2019 04 04.32852 10 01 23.32 +01 45 32.4 26.8g 17BB241 T09 C~8COq 2019 04 04.332333 10 01 23.32 +01 45 32.5 17BB241 T09 C~86ul 2019 04 04.33618 10 01 23.30 +01 45 32.7 26.8g 17BB241 T09 C~8COq 2019 04 04.340000 10 01 23.29 +01 45 32.7 17BB241 T09 C~86ul 2019 04 04.34384 10 01 23.26 +01 45 32.7 26.9g 17BB241 T09 C~8COq 2019 05 09.238093 10 00 29.45 +01 58 59.5 17BB241 T09 C~86ul 2019 05 09.385989 10 00 29.42 +01 59 02.1 17BB241 T09 C~86ul
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 0.21 0.00 -0.13
2 0.0000 -0.11 0.03 -0.15 -0.13
3 0.0000 0.00 0.11 0.00 0.06
4 0.0762 -332.17 0.11 -319.48 0.05
5 0.0763 -333.09 -0.21 -319.60 0.12
6 0.0763 -333.47 -0.27 -319.86 -0.02
7 0.1555 -1686.15 0.24 -551.37 0.16
8 0.1557 -1689.17 0.03 -551.85 -0.07
9 0.1557 -1690.85 -0.05 -552.05 -0.12
10 0.1558 -1692.29 0.12 -552.05 0.02
11 0.1559 -1693.73 0.04 -552.05 0.15
12 0.1608 -1803.66 0.08 -560.99 0.14
13 0.1608 -1804.58 -0.14 -561.55 -0.36
14 0.1609 -1805.73 0.11 -561.02 0.29
15 0.1610 -1807.42 -0.41 -561.64 -0.25
16 0.1610 -1808.44 -0.10 -561.49 0.02
17 0.1612 -1813.74 -0.16 -561.86 0.08
18 0.1613 -1814.16 -0.15 -562.01 -0.04
19 0.1613 -1814.51 0.01 -561.93 0.08
20 0.1614 -1816.09 0.07 -561.98 0.16
21 0.1614 -1817.81 0.26 -562.52 -0.21
22 0.1888 -2465.78 0.09 -597.94 -0.01
23 0.1888 -2467.22 -0.02 -597.94 0.04
24 2.3536 2334.59 0.11 1296.18 0.08
25 2.3537 2334.00 -0.30 1296.07 -0.08
26 2.3537 2334.14 0.04 1296.12 -0.07
27 2.3537 2333.33 0.01 1296.57 0.21
28 2.3537 2332.56 0.01 1296.49 -0.03
29 2.3538 2332.52 0.17 1296.59 0.02
30 2.3538 2332.17 0.01 1296.67 0.06
31 2.3538 2332.03 0.07 1296.62 -0.04
32 2.3538 2331.61 -0.16 1296.46 -0.23
33 2.4493 1294.04 0.05 1771.21 -0.01
34 2.4497 1292.71 -0.00 1773.49 0.09
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.
17BB241 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.945 42.982 42.915 ecceobj 0.031 0.029 0.035 incobj 14.274 14.274 14.274 qmin 41.007 41.134 40.860 qmax 45.069 45.099 45.161 amean 42.965 43.000 42.938 amin 42.640 42.674 42.622 amax 43.298 43.335 43.275 emean 0.029 0.028 0.033 emin 0.018 0.016 0.021 emax 0.041 0.041 0.045 imean 14.706 14.702 14.709 imin 14.200 14.197 14.199 imax 15.199 15.183 15.205 excite_mean 0.256 0.255 0.256 fracstop 1.000 1.000 1.000 cjmean 3.010 3.011 3.010 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 181.5 181.6 181.1 kozaiamp 179.9 180.0 180.0