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: 16QF86 # Created Fri Nov 22 02:10:43 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 53 observations of 53 # Arc: 10.20y # First observation: 2014/07/01 # Last observation: 2024/09/10 # Chi-squared of fit: 43.92 DOF: 100 RMS: 0.16 # Min/Max residuals: -0.65 0.55 # Exact a, adot, b, bdot, g, gdot: 1.513912E-05 3.660081E-02 1.612540E-06 5.158895E-03 3.713462E-02 -6.901208E-04 # Covariance matrix: 1.3161E-13 -3.0244E-14 2.1917E-15 -4.2834E-15 6.8408E-14 -7.6236E-14 -3.0244E-14 3.5417E-14 -8.3943E-15 4.9038E-15 4.0207E-14 8.2065E-14 2.1917E-15 -8.3943E-15 5.9275E-14 -1.0561E-14 -1.5298E-14 -1.9949E-14 -4.2834E-15 4.9038E-15 -1.0561E-14 3.6493E-15 4.3167E-15 1.2808E-14 6.8408E-14 4.0207E-14 -1.5298E-14 4.3167E-15 1.9466E-13 6.5237E-14 -7.6236E-14 8.2065E-14 -1.9949E-14 1.2808E-14 6.5237E-14 2.1609E-13 # lat0 lon0 xBary yBary zBary JD0 11.131313 -31.207918 0.771745 0.128430 -0.652419 2456840.059238 # Heliocentric elements and errors Epoch: 2456840.5000 = 2014/07/02 Mean Anomaly: 190.95283 +/- 0.007 Argument of Peri: 226.80412 +/- 0.002 Long of Asc Node: 275.11883 +/- 0.000 Inclination: 13.67706 +/- 0.000 Eccentricity: 0.31358208 +/- 0.0000 Semi-Major Axis: 21.05683190 +/- 0.0006 Time of Perihelion: 2473413.2039 +/- 1.1 Perihelion: 14.45378675 +/- 0.0006 Aphelion: 27.65987704 +/- 0.0009 Period (y) 96.6268 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.76596889 +/- 0.0003 Ecliptic Y -14.69321188 +/- 0.0002 Ecliptic Z 5.19897495 +/- 0.0001 Ecliptic XDOT 0.00128759 +/- 0.0000 Ecliptic YDOT 0.00236804 +/- 0.0000 Ecliptic ZDOT 0.00036350 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 27.59003927 +/- 0.0002 Geocenter to KBO 26.92908830 +/- 0.0003 # Hcoef: 8.26
The following table shows the complete astrometric record for 16QF86. 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 (16QF86) followed by the observatory code and reference code for the source of the astrometry.
2014 07 01.55846 21 48 20.126 -01 26 18.09 23.1G 16QF86 F51 C~2og5 2014 07 01.57057 21 48 20.072 -01 26 18.34 22.6G 16QF86 F51 C~2og5 2014 07 01.58269 21 48 20.006 -01 26 18.19 22.6G 16QF86 F51 C~2og5 2014 07 01.59479 21 48 19.956 -01 26 18.18 23.1G 16QF86 F51 C~2og5 2014 07 01.60495 21 48 19.907 -01 26 18.93 21.7G 16QF86 F51 C~2og5 2014 08 20.37807 21 43 09.612 -01 42 29.40 23.2G 16QF86 F51 C~2og5 2014 08 20.39082 21 43 09.505 -01 42 29.48 22.7G 16QF86 F51 C~2og5 2014 08 20.40358 21 43 09.428 -01 42 30.15 22.9G 16QF86 F51 C~2og5 2014 08 20.41640 21 43 09.323 -01 42 30.46 22.5G 16QF86 F51 C~2og5 2014 08 21.35483 21 43 02.730 -01 43 03.02 22.6G 16QF86 F51 C~2og5 2014 08 21.36768 21 43 02.652 -01 43 03.34 22.7G 16QF86 F51 C~2og5 2014 08 21.38055 21 43 02.542 -01 43 04.03 22.8G 16QF86 F51 C~2og5 2014 08 21.39347 21 43 02.465 -01 43 04.25 22.6G 16QF86 F51 C~2og5 2016 07 09.57684 22 02 41.023 +00 32 49.94 22.8G 16QF86 F51 C~2og5 2016 07 09.58548 22 02 40.982 +00 32 49.87 22.9G 16QF86 F51 C~2og5 2016 07 09.59409 22 02 40.944 +00 32 49.75 23.3G 16QF86 F51 C~2og5 2016 07 09.60270 22 02 40.896 +00 32 49.80 22.7G 16QF86 F51 C~2og5 2016 08 23.251852 21 57 56.75 +00 16 25.1 22.0z 16QF86 W84 C~2KZO 2016 08 30.37980 21 57 06.982 +00 11 56.53 22.5G 16QF86 F51 C~2og5 2016 09 05.214630 21 56 27.12 +00 08 03.3 22.9r 16QF86 W84 C~2KZO 2016 09 08.089734 21 56 07.99 +00 06 05.2 22.1i 16QF86 W84 C~2KZO 2016 09 26.032454 21 54 19.74 -00 06 38.3 22.3r 16QF86 W84 C~2KZO 2016 09 26.033819 21 54 19.74 -00 06 38.2 21.9i 16QF86 W84 C~2KZO 2016 09 26.035185 21 54 19.73 -00 06 38.2 22.7g 16QF86 W84 C~2KZO 2017 07 26.50393 22 08 44.977 +01 30 13.68 22.8G 16QF86 F51 C~2og5 2017 07 26.51667 22 08 44.913 +01 30 13.51 23.1G 16QF86 F51 C~2og5 2017 07 26.54220 22 08 44.743 +01 30 13.01 22.6G 16QF86 F51 C~2og5 2017 07 29.52140 22 08 26.210 +01 29 17.63 23.1G 16QF86 F51 C~2og5 2017 08 06.205775 22 07 36.21 +01 26 23.1 16QF86 W84 C~2KZO 2017 08 19.213692 22 06 06.49 +01 19 55.1 16QF86 W84 C~2KZO 2017 08 23.47375 22 05 36.482 +01 17 25.71 22.4G 16QF86 F51 C~2og5 2017 08 23.48573 22 05 36.400 +01 17 25.23 22.3G 16QF86 F51 C~2og5 2017 08 23.49765 22 05 36.288 +01 17 25.00 21.9G 16QF86 F51 C~2og5 2017 08 23.50965 22 05 36.218 +01 17 24.46 22.3G 16QF86 F51 C~2og5 2017 08 24.46518 22 05 29.490 +01 16 49.62 22.6G 16QF86 F51 C~2og5 2017 08 24.47651 22 05 29.420 +01 16 49.40 22.7G 16QF86 F51 C~2og5 2017 08 24.48780 22 05 29.327 +01 16 48.90 22.3G 16QF86 F51 C~2og5 2017 08 24.49907 22 05 29.248 +01 16 48.30 22.0G 16QF86 F51 C~2og5 2017 09 13.37190 22 03 13.680 +01 03 25.55 22.2G 16QF86 F51 C~2og5 2017 09 13.38524 22 03 13.589 +01 03 25.05 22.1G 16QF86 F51 C~2og5 2017 09 13.39852 22 03 13.505 +01 03 24.26 22.4G 16QF86 F51 C~2og5 2017 09 13.41177 22 03 13.408 +01 03 23.45 22.2G 16QF86 F51 C~2og5 2017 09 27.28578 22 01 50.509 +00 53 13.87 22.3G 16QF86 F51 C~2og5 2017 09 28.35909 22 01 44.729 +00 52 27.16 22.5G 16QF86 F51 C~2og5 2017 10 07.37408 22 01 00.491 +00 45 56.97 22.5G 16QF86 F51 C~2og5 2017 10 19.22546 22 00 15.719 +00 37 54.30 21.7G 16QF86 F51 C~2og5 2023 10 19.227102 22 47 27.390 +06 49 56.02 22.3w 16QF86 F51 C~7Mov 2023 10 19.239958 22 47 27.342 +06 49 55.34 22.4w 16QF86 F51 C~7Mov 2023 10 19.253374 22 47 27.263 +06 49 54.60 22.3w 16QF86 F51 C~7Mov 2023 10 19.266264 22 47 27.210 +06 49 54.07 22.5w 16QF86 F51 C~7Mov 2024 09 10.296634 22 59 50.492 +08 25 42.43 22.1w 16QF86 F51 C~8Fy9 2024 09 10.317648 22 59 50.363 +08 25 41.50 21.9w 16QF86 F51 C~8Fy9 2024 09 10.328238 22 59 50.285 +08 25 40.93 22.2w 16QF86 F51 C~8Fy9
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 0.05 0.00 0.14
2 0.0000 0.00 0.08 0.00 -0.09
3 0.0001 0.00 -0.07 0.00 0.07
4 0.0001 0.00 0.02 0.00 0.09
5 0.0001 0.00 -0.01 0.00 -0.64
6 0.1364 0.00 0.11 0.00 -0.25
7 0.1364 0.00 -0.12 0.00 0.11
8 0.1365 0.00 0.10 0.00 -0.12
9 0.1365 0.00 -0.10 0.00 0.01
10 0.1391 0.00 -0.04 0.00 0.02
11 0.1391 0.00 0.17 0.00 0.15
12 0.1391 0.00 -0.10 0.00 -0.09
13 0.1392 0.00 0.13 0.00 0.14
14 2.0233 0.00 -0.04 0.00 0.04
15 2.0233 0.00 0.00 0.00 0.01
16 2.0234 0.00 0.08 0.00 -0.07
17 2.0234 0.00 0.02 0.00 0.03
18 2.1456 0.00 -0.25 0.00 0.12
19 2.1652 0.00 0.08 0.00 0.15
20 2.1811 0.00 -0.03 0.00 -0.08
21 2.1890 0.00 0.03 0.00 0.23
22 2.2381 0.00 -0.06 0.00 0.01
23 2.2381 0.00 0.05 0.00 0.17
24 2.2381 0.00 0.02 0.00 0.22
25 3.0690 0.00 -0.03 0.00 0.02
26 3.0690 0.00 0.20 0.00 0.07
27 3.0691 0.00 0.05 0.00 0.02
28 3.0772 0.00 -0.26 0.00 0.20
29 3.0983 0.00 0.07 0.00 -0.01
30 3.1339 0.00 -0.04 0.00 0.03
31 3.1456 0.00 0.05 0.00 -0.04
32 3.1456 0.00 0.11 0.00 -0.09
33 3.1456 0.00 -0.29 0.00 0.11
34 3.1457 0.00 -0.05 0.00 0.01
35 3.1483 0.00 -0.05 0.00 -0.10
36 3.1483 0.00 0.12 0.00 0.10
37 3.1483 0.00 -0.06 0.00 0.01
38 3.1484 0.00 -0.04 0.00 -0.18
39 3.2028 0.00 0.12 0.00 0.31
40 3.2028 0.00 0.07 0.00 0.39
41 3.2028 0.00 0.12 0.00 0.17
42 3.2029 0.00 -0.03 0.00 -0.07
43 3.2409 0.00 -0.29 0.00 -0.65
44 3.2438 0.00 -0.11 0.00 -0.19
45 3.2685 0.00 -0.05 0.00 -0.07
46 3.3009 0.00 0.55 0.00 -0.17
47 9.2996 0.00 -0.13 0.00 -0.00
48 9.2996 0.00 0.07 0.00 -0.04
49 9.2996 0.00 -0.15 0.00 -0.12
50 9.2997 0.00 -0.02 0.00 -0.01
51 10.1950 0.00 -0.19 0.00 0.05
52 10.1951 0.00 0.19 0.00 0.04
53 10.1951 0.00 0.18 0.00 -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.
16QF86 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 21.076 21.076 21.075 ecceobj 0.311 0.311 0.311 incobj 13.708 13.708 13.708 qmin 14.481 14.481 14.481 qmax 27.887 27.894 27.877 amean 21.127 21.230 21.336 amin 21.005 20.949 20.911 amax 21.272 21.822 22.124 emean 0.299 0.291 0.269 emin 0.275 0.265 0.226 emax 0.313 0.313 0.313 imean 15.715 16.077 16.588 imin 15.198 15.198 15.198 imax 16.736 17.183 17.478 excite_mean 0.403 0.402 0.394 fracstop 0.003 0.004 0.007 cjmean 2.966 2.964 2.968 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 248.6 257.7 264.1 kozaiamp 21.1 30.8 31.5