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: 17FX234 # Created Wed May 8 01:18:09 2024 # Orbit generated from Bernstein formalism # Fitting 45 observations of 45 # Arc: 37.87d # First observation: 2017/03/22 # Last observation: 2017/04/29 Preliminary a, adot, b, bdot, g, gdot: -0.000002 0.033046 0.000003 -0.010871 0.028217 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 16.85 DOF: 85 RMS: 0.11 # Min/Max residuals: -0.22 0.27 # Exact a, adot, b, bdot, g, gdot: 1.701597E-05 2.961510E-02 -5.376434E-06 -1.037712E-02 2.765668E-02 -3.008981E-03 # Covariance matrix: 2.4500E-13 -1.7664E-12 -4.4386E-15 -5.5542E-13 1.9001E-12 8.6928E-10 -1.7664E-12 5.6884E-08 2.9657E-11 -8.0746E-09 8.8663E-09 -2.2076E-06 -4.4386E-15 2.9657E-11 1.8358E-13 -6.0026E-12 4.5150E-12 -1.2019E-09 -5.5542E-13 -8.0746E-09 -6.0026E-12 1.1752E-09 -1.2725E-09 3.0731E-07 1.9001E-12 8.8663E-09 4.5150E-12 -1.2725E-09 1.4289E-09 -3.2287E-07 8.6928E-10 -2.2076E-06 -1.2019E-09 3.0731E-07 -3.2287E-07 9.5551E-05 # lat0 lon0 xBary yBary zBary JD0 -8.846494 152.304007 -0.484176 -0.133243 -0.856983 2457834.913971 # Heliocentric elements and errors Epoch: 2457830.5000 = 2017/03/18 Mean Anomaly: 344.11960 +/- 45.349 Argument of Peri: 231.01424 +/- 79.729 Long of Asc Node: 309.67320 +/- 0.259 Inclination: 20.93697 +/- 0.201 Eccentricity: 0.23746046 +/- 0.1857 Semi-Major Axis: 47.59269709 +/- 5.2381 Time of Perihelion: 2463120.6480 +/- 15081.7 Perihelion: 36.29131339 +/- 9.6999 Aphelion: 58.89408078 +/- 10.9613 Period (y) 328.3361 +/- 54.21 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.63040309 +/- 0.0432 Ecliptic Y 16.57478926 +/- 0.0227 Ecliptic Z -5.56077489 +/- 0.0076 Ecliptic XDOT -0.00095867 +/- 0.0008 Ecliptic YDOT -0.00281264 +/- 0.0005 Ecliptic ZDOT -0.00096932 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 37.01876635 +/- 0.0395 Geocenter to KBO 36.15762579 +/- 0.0494 # Hcoef: 7.20
The following table shows the complete astrometric record for 17FX234. 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 (17FX234) followed by the observatory code and reference code for the source of the astrometry.
2017 03 22.41317 10 04 29.29 +02 22 59.4 22.4z 17FX234 T09 C~7xUO 2017 03 22.43886 10 04 29.17 +02 23 00.2 22.7z 17FX234 T09 C~7xUO 2017 03 22.46449 10 04 29.06 +02 23 00.9 22.8z 17FX234 T09 C~7xUO 2017 03 22.48627 10 04 28.97 +02 23 01.5 22.8z 17FX234 T09 C~7xUO 2017 03 25.24382 10 04 17.30 +02 24 12.2 23.0r 17FX234 T09 C~7xUO 2017 03 25.25752 10 04 17.25 +02 24 12.7 23.0r 17FX234 T09 C~7xUO 2017 03 25.28496 10 04 17.13 +02 24 13.2 22.9r 17FX234 T09 C~7xUO 2017 03 29.27532 10 04 01.08 +02 25 54.5 23.7g 17FX234 T09 C~7xUO 2017 03 29.28925 10 04 01.02 +02 25 54.6 23.7g 17FX234 T09 C~7xUO 2017 03 29.30319 10 04 00.98 +02 25 55.0 23.8g 17FX234 T09 C~7xUO 2017 04 20.27620 10 02 54.63 +02 34 03.8 22.6y 17FX234 T09 C~7xUO 2017 04 20.28003 10 02 54.63 +02 34 03.8 22.5y 17FX234 T09 C~7xUO 2017 04 20.30300 10 02 54.58 +02 34 04.5 23.1y 17FX234 T09 C~7xUO 2017 04 23.24251 10 02 48.91 +02 34 57.6 23.0r 17FX234 T09 C~7xUO 2017 04 23.24643 10 02 48.88 +02 34 57.7 22.8r 17FX234 T09 C~7xUO 2017 04 23.25033 10 02 48.88 +02 34 57.7 22.9r 17FX234 T09 C~7xUO 2017 04 23.25417 10 02 48.88 +02 34 57.7 23.0r 17FX234 T09 C~7xUO 2017 04 23.25799 10 02 48.87 +02 34 57.7 23.1r 17FX234 T09 C~7xUO 2017 04 23.26183 10 02 48.87 +02 34 58.1 23.0r 17FX234 T09 C~7xUO 2017 04 23.34188 10 02 48.72 +02 34 59.4 22.7z 17FX234 T09 C~7xUO 2017 04 23.34570 10 02 48.69 +02 34 59.4 22.5z 17FX234 T09 C~7xUO 2017 04 23.35718 10 02 48.69 +02 34 59.8 22.7z 17FX234 T09 C~7xUO 2017 04 23.37249 10 02 48.66 +02 34 59.8 22.6z 17FX234 T09 C~7xUO 2017 04 23.37632 10 02 48.65 +02 34 59.9 22.6z 17FX234 T09 C~7xUO 2017 04 26.23645 10 02 43.94 +02 35 48.3 22.9i 17FX234 T09 C~7xUO 2017 04 26.24028 10 02 43.94 +02 35 48.3 22.7i 17FX234 T09 C~7xUO 2017 04 26.24413 10 02 43.94 +02 35 48.7 23.0i 17FX234 T09 C~7xUO 2017 04 26.24796 10 02 43.93 +02 35 48.7 22.8i 17FX234 T09 C~7xUO 2017 04 26.26326 10 02 43.92 +02 35 48.8 22.7i 17FX234 T09 C~7xUP 2017 04 26.28251 10 02 43.89 +02 35 49.2 22.8i 17FX234 T09 C~7xUP 2017 04 26.29017 10 02 43.87 +02 35 49.3 22.8i 17FX234 T09 C~7xUP 2017 04 26.29400 10 02 43.86 +02 35 49.3 22.8i 17FX234 T09 C~7xUP 2017 04 26.29783 10 02 43.86 +02 35 49.5 22.9i 17FX234 T09 C~7xUP 2017 04 27.34452 10 02 42.34 +02 36 06.1 22.6i 17FX234 T09 C~7xUP 2017 04 27.35218 10 02 42.33 +02 36 06.3 22.7i 17FX234 T09 C~7xUP 2017 04 27.36375 10 02 42.31 +02 36 06.5 22.8i 17FX234 T09 C~7xUP 2017 04 29.24827 10 02 39.84 +02 36 35.6 22.7z 17FX234 T09 C~7xUP 2017 04 29.25210 10 02 39.84 +02 36 35.7 22.4z 17FX234 T09 C~7xUP 2017 04 29.25593 10 02 39.84 +02 36 35.6 22.9z 17FX234 T09 C~7xUP 2017 04 29.25976 10 02 39.84 +02 36 35.7 22.4z 17FX234 T09 C~7xUP 2017 04 29.26359 10 02 39.84 +02 36 35.7 22.4z 17FX234 T09 C~7xUP 2017 04 29.26758 10 02 39.83 +02 36 35.9 22.4z 17FX234 T09 C~7xUP 2017 04 29.27141 10 02 39.83 +02 36 35.7 22.7z 17FX234 T09 C~7xUP 2017 04 29.27524 10 02 39.82 +02 36 35.9 22.7z 17FX234 T09 C~7xUP 2017 04 29.27907 10 02 39.82 +02 36 35.9 22.7z 17FX234 T09 C~7xUP
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 -0.02 0.00 -0.11
2 0.0001 -1.97 -0.16 0.11 -0.02
3 0.0001 -3.75 -0.13 0.19 0.03
4 0.0002 -5.23 -0.06 0.27 0.09
5 0.0077 -193.82 0.08 4.79 -0.13
6 0.0078 -194.70 0.14 4.99 0.06
7 0.0079 -196.56 0.16 4.83 -0.15
8 0.0188 -457.36 -0.05 14.85 0.19
9 0.0188 -458.24 -0.02 14.62 -0.07
10 0.0189 -458.94 0.18 14.79 0.06
11 0.0790 -1561.73 -0.15 121.93 0.05
12 0.0790 -1561.73 -0.00 121.93 0.02
13 0.0791 -1562.68 -0.10 122.32 0.27
14 0.0871 -1660.91 0.14 142.09 0.04
15 0.0872 -1661.36 -0.19 142.02 -0.05
16 0.0872 -1661.36 -0.06 142.02 -0.08
17 0.0872 -1661.36 0.06 142.02 -0.10
18 0.0872 -1661.51 0.05 141.97 -0.18
19 0.0872 -1661.65 0.03 142.35 0.17
20 0.0874 -1664.21 0.08 142.77 0.08
21 0.0874 -1664.63 -0.22 142.61 -0.11
22 0.0875 -1664.77 0.01 142.99 0.19
23 0.0875 -1665.19 0.08 142.83 -0.07
24 0.0875 -1665.37 0.03 142.87 -0.05
25 0.0953 -1748.47 -0.17 163.31 -0.15
26 0.0954 -1748.47 -0.06 163.31 -0.18
27 0.0954 -1748.61 -0.09 163.69 0.17
28 0.0954 -1748.75 -0.13 163.63 0.09
29 0.0954 -1748.93 0.13 163.67 0.03
30 0.0955 -1749.49 0.11 163.89 0.11
31 0.0955 -1749.81 0.01 163.88 0.05
32 0.0955 -1749.95 -0.02 163.82 -0.03
33 0.0955 -1750.02 0.01 164.01 0.13
34 0.0984 -1777.18 0.13 171.53 -0.06
35 0.0984 -1777.39 0.12 171.66 0.02
36 0.0984 -1777.75 0.07 171.74 0.02
37 0.1036 -1822.64 -0.22 185.94 -0.03
38 0.1036 -1822.67 -0.16 186.04 0.04
39 0.1036 -1822.64 -0.04 185.94 -0.08
40 0.1036 -1822.67 0.02 186.04 -0.01
41 0.1036 -1822.67 0.11 186.04 -0.04
42 0.1036 -1822.88 -0.01 186.17 0.06
43 0.1037 -1822.81 0.15 185.99 -0.15
44 0.1037 -1823.02 0.03 186.12 -0.04
45 0.1037 -1823.02 0.12 186.12 -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.
17FX234 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0