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 Fri Nov 22 02:10:54 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 64 observations of 64 # Arc: 5.78y # First observation: 2013/04/03 # Last observation: 2019/01/11 # Chi-squared of fit: 24.66 DOF: 122 RMS: 0.11 # Min/Max residuals: -0.30 0.29 # Exact a, adot, b, bdot, g, gdot: 1.653841E-05 2.915611E-02 -6.065461E-06 -1.074326E-02 2.747777E-02 -1.052556E-03 # Covariance matrix: 1.1205E-12 -4.9008E-13 -1.9875E-13 1.2988E-13 -2.6337E-13 -1.7566E-12 -4.9008E-13 2.5796E-13 1.2464E-13 -8.1653E-14 1.8188E-13 1.1042E-12 -1.9875E-13 1.2464E-13 5.9557E-13 -1.7057E-13 1.0675E-13 6.1132E-13 1.2988E-13 -8.1653E-14 -1.7057E-13 6.0858E-14 -7.1228E-14 -4.0133E-13 -2.6337E-13 1.8188E-13 1.0675E-13 -7.1228E-14 2.6197E-13 9.6190E-13 -1.7566E-12 1.1042E-12 6.1132E-13 -4.0133E-13 9.6190E-13 5.4263E-12 # lat0 lon0 xBary yBary zBary JD0 -6.416774 145.305297 -0.744822 -0.074683 -0.664767 2456385.533869 # Heliocentric elements and errors Epoch: 2456386.5000 = 2013/04/04 Mean Anomaly: 356.94963 +/- 0.016 Argument of Peri: 202.56794 +/- 0.025 Long of Asc Node: 309.72933 +/- 0.000 Inclination: 20.98171 +/- 0.000 Eccentricity: 0.20452160 +/- 0.0001 Semi-Major Axis: 46.56925150 +/- 0.0036 Time of Perihelion: 2457370.0514 +/- 14.5 Perihelion: 37.04483351 +/- 0.0038 Aphelion: 56.09366948 +/- 0.0050 Period (y) 317.8023 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -30.70836650 +/- 0.0006 Ecliptic Y 20.35568496 +/- 0.0004 Ecliptic Z -4.06752678 +/- 0.0001 Ecliptic XDOT -0.00147582 +/- 0.0000 Ecliptic YDOT -0.00251554 +/- 0.0000 Ecliptic ZDOT -0.00105188 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.06619930 +/- 0.0005 Geocenter to KBO 36.39311950 +/- 0.0007 # Hcoef: 7.16
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.
2013 04 03.033091 09 41 38.558 +07 02 02.76 22.1z 17FX234 W84 C~8HKw 2015 04 17.038124 09 52 05.305 +04 49 48.45 23.2g 17FX234 W84 C~89Uf 2015 04 17.039557 09 52 05.292 +04 49 48.36 22.6r 17FX234 W84 C~89Uf 2016 01 10.303276 10 04 49.872 +03 08 47.51 22.6r 17FX234 W84 C~8HKw 2016 01 17.225406 10 04 21.466 +03 09 38.34 22.6r 17FX234 W84 C~8HKx 2016 03 02.149002 10 00 33.655 +03 23 42.43 23.0r 17FX234 W84 C~8HKx 2016 03 04.437321 10 00 21.93 +03 24 39.6 17FX234 T09 C~83FC 2017 03 04.136021 10 05 56.578 +02 15 03.20 23.1g 17FX234 W84 C~8HKx 2017 03 06.012270 10 05 47.009 +02 15 51.44 23.4z 17FX234 W84 C~8HKx 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 28.021216 10 04 06.007 +02 25 23.05 23.3g 17FX234 W84 C~8HKx 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 2018 01 17.464586 10 15 17.26 +00 51 30.6 17FX234 T09 C~83FC 2018 01 17.612395 10 15 16.63 +00 51 31.8 17FX234 T09 C~83FC 2018 03 18.020126 10 10 20.354 +01 11 40.06 22.8r 17FX234 W84 C~8HKx 2018 05 06.075587 10 07 59.047 +01 29 54.71 23.0g 17FX234 W84 C~8HKx 2018 05 07.046295 10 07 58.404 +01 30 07.85 23.2r 17FX234 W84 C~8HKx 2019 01 11.40997 10 21 09.52 -00 17 57.6 22.4z 17FX234 T09 C~83FC 2019 01 11.43941 10 21 09.42 -00 17 57.6 22.5z 17FX234 T09 C~83FC 2019 01 11.49031 10 21 09.23 -00 17 57.6 22.5z 17FX234 T09 C~83FC 2019 01 11.49299 10 21 09.22 -00 17 57.6 22.4z 17FX234 T09 C~83FC
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 0.04 0.00 -0.04
2 2.0370 0.00 0.07 0.00 0.07
3 2.0370 0.00 -0.07 0.00 -0.04
4 2.7714 0.00 -0.05 0.00 0.03
5 2.7904 0.00 -0.15 0.00 0.09
6 2.9134 0.00 0.12 0.00 0.10
7 2.9197 0.00 0.09 0.00 0.05
8 3.9181 0.00 0.20 0.00 -0.03
9 3.9233 0.00 0.05 0.00 -0.06
10 3.9682 0.00 -0.00 0.00 -0.14
11 3.9683 0.00 -0.10 0.00 -0.00
12 3.9683 0.00 -0.06 0.00 0.03
13 3.9684 0.00 0.03 0.00 0.07
14 3.9759 0.00 0.07 0.00 -0.19
15 3.9760 0.00 0.19 0.00 -0.04
16 3.9760 0.00 0.14 0.00 -0.24
17 3.9835 0.00 0.03 0.00 -0.05
18 3.9870 0.00 0.05 0.00 0.15
19 3.9870 0.00 -0.02 0.00 -0.10
20 3.9871 0.00 0.21 0.00 -0.05
21 4.0472 0.00 -0.18 0.00 0.09
22 4.0472 0.00 -0.06 0.00 0.02
23 4.0473 0.00 -0.06 0.00 0.29
24 4.0553 0.00 0.09 0.00 -0.00
25 4.0553 0.00 -0.25 0.00 0.03
26 4.0554 0.00 -0.14 0.00 -0.04
27 4.0554 0.00 -0.03 0.00 -0.11
28 4.0554 0.00 -0.07 0.00 -0.18
29 4.0554 0.00 0.03 0.00 0.16
30 4.0556 0.00 0.04 0.00 0.05
31 4.0556 0.00 -0.30 0.00 -0.01
32 4.0556 0.00 0.02 0.00 0.18
33 4.0557 0.00 -0.00 0.00 -0.08
34 4.0557 0.00 -0.04 0.00 -0.05
35 4.0635 0.00 -0.26 0.00 -0.07
36 4.0635 0.00 -0.16 0.00 -0.13
37 4.0635 0.00 -0.07 0.00 0.21
38 4.0636 0.00 -0.13 0.00 0.14
39 4.0636 0.00 0.09 0.00 -0.01
40 4.0637 0.00 0.10 0.00 0.08
41 4.0637 0.00 -0.02 0.00 0.06
42 4.0637 0.00 -0.08 0.00 -0.01
43 4.0637 0.00 0.02 0.00 0.13
44 4.0666 0.00 0.06 0.00 -0.08
45 4.0666 0.00 0.08 0.00 -0.00
46 4.0666 0.00 0.04 0.00 0.01
47 4.0718 0.00 -0.24 0.00 0.07
48 4.0718 0.00 -0.16 0.00 0.12
49 4.0718 0.00 -0.09 0.00 -0.04
50 4.0718 0.00 -0.01 0.00 0.00
51 4.0718 0.00 0.06 0.00 -0.06
52 4.0718 0.00 -0.01 0.00 0.08
53 4.0718 0.00 0.07 0.00 -0.17
54 4.0718 0.00 -0.01 0.00 -0.03
55 4.0719 0.00 0.07 0.00 -0.09
56 4.7924 0.00 0.04 0.00 -0.09
57 4.7928 0.00 0.06 0.00 0.01
58 4.9555 0.00 0.18 0.00 -0.05
59 5.0898 0.00 0.26 0.00 -0.09
60 5.0924 0.00 0.19 0.00 0.00
61 5.7752 0.00 -0.15 0.00 0.16
62 5.7752 0.00 -0.02 0.00 0.10
63 5.7754 0.00 -0.04 0.00 -0.02
64 5.7754 0.00 -0.04 0.00 -0.02
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:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.407 46.428 46.385 ecceobj 0.201 0.201 0.200 incobj 21.015 21.015 21.016 qmin 35.974 35.956 35.968 qmax 57.275 57.368 57.344 amean 46.405 46.427 46.384 amin 45.994 46.033 45.984 amax 46.884 46.911 46.884 emean 0.206 0.207 0.206 emin 0.191 0.191 0.191 emax 0.222 0.223 0.223 imean 22.287 22.284 22.287 imin 21.783 21.775 21.782 imax 22.765 22.770 22.765 excite_mean 0.432 0.432 0.432 fracstop 1.000 1.000 1.000 cjmean 2.896 2.896 2.896 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 180.1 180.0 180.1 kozaiamp 180.0 179.9 180.0