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: 15VE167 # Created Fri Nov 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 2.27y # First observation: 2015/09/07 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000178 0.033133 -0.000045 0.018883 0.029815 0.000000 # Chi-squared of fit: 9.04 DOF: 54 RMS: 0.10 # Min/Max residuals: -0.17 0.39 # Exact a, adot, b, bdot, g, gdot: 1.824572E-05 3.268936E-02 9.903570E-06 1.859528E-02 2.968886E-02 -8.826818E-04 # Covariance matrix: 2.4882E-13 -8.8676E-14 -2.3742E-15 1.5309E-14 1.3144E-13 4.2521E-13 -8.8676E-14 3.4504E-13 -6.8302E-14 2.2835E-13 1.3175E-13 5.9859E-12 -2.3742E-15 -6.8302E-14 1.5490E-13 -1.6981E-13 -3.8162E-14 -1.8006E-12 1.5309E-14 2.2835E-13 -1.6981E-13 3.4798E-13 1.3563E-13 6.0261E-12 1.3144E-13 1.3175E-13 -3.8162E-14 1.3563E-13 2.1207E-13 3.5815E-12 4.2521E-13 5.9859E-12 -1.8006E-12 6.0261E-12 3.5815E-12 1.5799E-10 # lat0 lon0 xBary yBary zBary JD0 -3.021008 52.808484 0.939105 -0.019593 -0.374068 2457273.125689 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 355.87609 +/- 0.028 Argument of Peri: 4.03112 +/- 0.068 Long of Asc Node: 56.47252 +/- 0.000 Inclination: 29.73297 +/- 0.001 Eccentricity: 0.38649631 +/- 0.0001 Semi-Major Axis: 55.29046037 +/- 0.0060 Time of Perihelion: 2458990.7072 +/- 11.5 Perihelion: 33.92090144 +/- 0.0056 Aphelion: 76.66001931 +/- 0.0094 Period (y) 411.1341 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 21.30272324 +/- 0.0003 Ecliptic Y 26.52545461 +/- 0.0004 Ecliptic Z -1.77480646 +/- 0.0000 Ecliptic XDOT -0.00239782 +/- 0.0000 Ecliptic YDOT 0.00182306 +/- 0.0000 Ecliptic ZDOT 0.00171678 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 34.06692968 +/- 0.0004 Geocenter to KBO 33.68266431 +/- 0.0005 # Hcoef: 9.27
The following table shows the complete astrometric record for 15VE167. 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 (15VE167) followed by the observatory code and reference code for the source of the astrometry.
2015 09 07.62490 03 24 48.482 +15 33 00.90 24.9w 15VE167 568 C~2lVh 2015 10 09.57195 03 23 06.052 +15 30 05.37 24.7w 15VE167 568 C~2lVh 2015 11 06.34408 03 20 32.753 +15 24 32.54 24.3r 15VE167 568 C~2lVh 2015 11 06.41470 03 20 32.315 +15 24 31.44 24.6r 15VE167 568 C~2lVh 2015 11 06.48426 03 20 31.873 +15 24 30.55 24.6r 15VE167 568 C~2lVh 2015 11 17.48361 03 19 24.112 +15 22 10.60 24.8w 15VE167 568 C~2lVh 2015 11 17.57138 03 19 23.575 +15 22 09.44 24.4w 15VE167 568 C~2lVh 2015 12 06.34926 03 17 31.276 +15 18 47.10 24.6w 15VE167 568 C~2lVh 2015 12 06.48675 03 17 30.485 +15 18 45.98 24.8w 15VE167 568 C~2lVh 2015 12 31.37031 03 15 30.783 +15 16 49.71 25.0w 15VE167 568 C~2lVh 2016 01 07.39971 03 15 06.614 +15 17 00.59 24.2w 15VE167 568 C~2lVh 2016 02 05.29926 03 14 25.462 +15 21 48.03 25.2w 15VE167 568 C~2lVh 2016 02 11.25262 03 14 29.476 +15 23 36.76 24.6w 15VE167 568 C~2lVh 2016 09 07.60834 03 31 15.871 +17 02 40.27 15VE167 568 C~2lVh 2016 09 27.53529 03 30 25.062 +17 02 14.49 24.8w 15VE167 568 C~2lVh 2016 10 07.52743 03 29 44.472 +17 01 14.37 26.1w 15VE167 568 C~2lVh 2016 10 07.53507 03 29 44.439 +17 01 14.03 24.7w 15VE167 568 C~2lVh 2016 10 07.62286 03 29 44.037 +17 01 13.25 24.6w 15VE167 568 C~2lVh 2016 10 09.49835 03 29 35.449 +17 00 58.79 24.8w 15VE167 568 C~2lVh 2016 10 09.57103 03 29 35.099 +17 00 58.15 24.8w 15VE167 568 C~2lVh 2016 11 02.47368 03 27 24.878 +16 56 55.73 24.6w 15VE167 568 C~2lVh 2016 11 02.48525 03 27 24.803 +16 56 55.66 24.8w 15VE167 568 C~2lVh 2016 11 04.44969 03 27 12.886 +16 56 32.57 24.7w 15VE167 568 C~2lVh 2016 11 04.46126 03 27 12.815 +16 56 32.48 24.7w 15VE167 568 C~2lVh 2016 12 28.46047 03 22 05.959 +16 48 24.36 25.1w 15VE167 568 C~2lVh 2016 12 29.39076 03 22 02.112 +16 48 22.30 24.7w 15VE167 568 C~2lVh 2017 01 27.30287 03 20 48.057 +16 50 15.32 24.9w 15VE167 568 C~2lVh 2017 09 20.60688 03 37 25.547 +18 32 12.22 15VE167 568 C~2lVh 2017 12 13.37172 03 29 56.430 +18 21 05.41 24.4w 15VE167 568 C~2lVi 2017 12 13.40930 03 29 56.213 +18 21 05.09 25.3w 15VE167 568 C~2lVi
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 -0.17 0.00 0.00
2 0.0875 -1477.17 -0.02 200.98 0.04
3 0.1635 -3705.99 0.06 439.65 0.07
4 0.1637 -3712.40 0.00 440.20 -0.12
5 0.1639 -3718.81 -0.14 440.96 -0.07
6 0.1940 -4702.49 0.08 555.62 0.01
7 0.1942 -4710.30 0.23 556.48 -0.09
8 0.2457 -6333.45 -0.06 778.12 0.08
9 0.2460 -6344.80 -0.04 779.99 0.19
10 0.3142 -8049.90 -0.05 1116.42 0.01
11 0.3334 -8385.29 -0.08 1218.06 -0.09
12 0.4125 -8885.98 -0.05 1651.32 0.05
13 0.4288 -8801.39 0.11 1741.18 -0.01
14 1.0020 6731.52 -0.06 3845.15 0.00
15 1.0566 6017.56 -0.04 3996.71 -0.17
16 1.0839 5437.74 0.07 4079.96 0.39
17 1.0839 5437.20 0.04 4079.74 0.11
18 1.0842 5431.41 0.05 4080.39 -0.01
19 1.0893 5308.32 0.11 4096.38 -0.08
20 1.0895 5303.29 0.05 4096.99 -0.13
21 1.1550 3431.55 -0.01 4319.80 -0.09
22 1.1550 3430.49 -0.05 4320.00 -0.01
23 1.1604 3259.01 -0.06 4339.77 -0.05
24 1.1604 3258.00 -0.04 4339.94 -0.01
25 1.3082 -1130.33 0.15 4967.49 -0.08
26 1.3108 -1184.32 0.08 4979.48 -0.03
27 1.3899 -2184.62 -0.05 5358.78 -0.01
28 2.0369 13158.88 0.06 7818.84 -0.05
29 2.2662 6774.06 -0.06 8692.44 0.06
30 2.2664 6770.98 -0.13 8692.88 0.06
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.
15VE167 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE Type: 5:2EII 5:2EII 5:2EII axisobj 56.035 56.057 56.014 ecceobj 0.394 0.394 0.393 incobj 29.656 29.656 29.656 qmin 33.478 33.408 33.474 qmax 78.442 78.570 78.330 amean 55.461 55.461 55.461 amin 54.828 54.854 54.813 amax 56.248 56.254 56.280 emean 0.375 0.382 0.364 emin 0.362 0.371 0.342 emax 0.395 0.398 0.394 imean 29.223 28.897 29.679 imin 28.602 28.464 28.598 imax 29.621 29.214 30.441 excite_mean 0.616 0.616 0.615 fracstop 1.000 1.000 1.000 cjmean 2.739 2.739 2.739 libcent 0 179.2 180.4 180.1 libamp 0 78.6 69.9 90.3 libcent 1 181.7 177.9 188.3 libamp 1 82.0 71.2 97.2 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 56.9 212.9 27.6 kozaiamp 180.0 180.0 180.0