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: 15VL166 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000247 0.038404 0.000015 -0.003185 0.031243 0.000000 # Chi-squared of fit: 15.17 DOF: 54 RMS: 0.13 # Min/Max residuals: -0.31 0.39 # Exact a, adot, b, bdot, g, gdot: 1.965210E-05 3.820469E-02 -1.028993E-06 -3.169552E-03 3.098790E-02 -4.410873E-03 # Covariance matrix: 1.0329E-12 -1.3018E-12 -5.6721E-14 9.2556E-14 -4.8902E-13 -9.6957E-12 -1.3018E-12 1.8851E-12 8.9669E-14 -1.4582E-13 7.2582E-13 1.5314E-11 -5.6721E-14 8.9669E-14 3.1473E-13 -1.8479E-13 3.5145E-14 7.8224E-13 9.2556E-14 -1.4582E-13 -1.8479E-13 1.3250E-13 -5.8486E-14 -1.2689E-12 -4.8902E-13 7.2582E-13 3.5145E-14 -5.8486E-14 4.0996E-13 6.0374E-12 -9.6957E-12 1.5314E-11 7.8224E-13 -1.2689E-12 6.0374E-12 1.3352E-10 # lat0 lon0 xBary yBary zBary JD0 -2.826266 46.473983 -0.141523 -0.048123 -0.978069 2456979.009918 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 346.89649 +/- 0.029 Argument of Peri: 236.82733 +/- 0.064 Long of Asc Node: 196.63915 +/- 0.003 Inclination: 5.46005 +/- 0.000 Eccentricity: 0.32442658 +/- 0.0002 Semi-Major Axis: 47.93573857 +/- 0.0066 Time of Perihelion: 2461382.8763 +/- 9.8 Perihelion: 32.38411080 +/- 0.0089 Aphelion: 63.48736634 +/- 0.0116 Period (y) 331.8924 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 22.76591489 +/- 0.0004 Ecliptic Y 24.17876064 +/- 0.0005 Ecliptic Z -1.59125318 +/- 0.0000 Ecliptic XDOT -0.00272927 +/- 0.0000 Ecliptic YDOT 0.00202743 +/- 0.0000 Ecliptic ZDOT -0.00026038 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.24802902 +/- 0.0005 Geocenter to KBO 32.27066024 +/- 0.0007 # Hcoef: 10.09
The following table shows the complete astrometric record for 15VL166. 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 (15VL166) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.50914 02 59 21.803 +14 03 11.64 25.0r 15VL166 568 C~2lVe 2015 09 12.52133 03 13 26.343 +14 54 50.32 25.5w 15VL166 568 C~2lVe 2015 10 07.45992 03 12 03.555 +14 46 49.37 25.6w 15VL166 568 C~2lVe 2015 10 08.46335 03 11 59.061 +14 46 26.13 25.6w 15VL166 568 C~2lVe 2015 10 08.52236 03 11 58.777 +14 46 24.95 25.6w 15VL166 568 C~2lVe 2015 11 07.36952 03 09 18.512 +14 33 45.79 25.4r 15VL166 568 C~2lVe 2015 11 07.41164 03 09 18.265 +14 33 44.72 24.9r 15VL166 568 C~2lVe 2015 11 07.45387 03 09 18.014 +14 33 43.55 25.0r 15VL166 568 C~2lVe 2015 11 10.54061 03 08 59.751 +14 32 23.24 25.1w 15VL166 568 C~2lVe 2015 11 17.38710 03 08 19.258 +14 29 27.17 25.3w 15VL166 568 C~2lVe 2015 11 17.43381 03 08 18.973 +14 29 25.96 25.3w 15VL166 568 C~2lVe 2015 12 06.39596 03 06 32.163 +14 22 04.17 25.3w 15VL166 568 C~2lVe 2016 01 01.38342 03 04 41.100 +14 15 13.90 26.2w 15VL166 568 C~2lVe 2016 01 02.34977 03 04 38.132 +14 15 04.12 25.3w 15VL166 568 C~2lVe 2016 01 07.33018 03 04 24.448 +14 14 22.89 26.5w 15VL166 568 C~2lVe 2016 02 05.27611 03 04 02.291 +14 14 40.08 25.5w 15VL166 568 C~2lVe 2016 09 07.56785 03 22 28.309 +15 19 42.33 25.3w 15VL166 568 C~2lVe 2016 09 25.60501 03 21 45.911 +15 14 58.34 25.5w 15VL166 568 C~2lVe 2016 09 27.50655 03 21 39.474 +15 14 22.07 25.5w 15VL166 568 C~2lVe 2016 10 10.44325 03 20 46.826 +15 09 47.09 25.2w 15VL166 568 C~2lVe 2016 10 10.50202 03 20 46.552 +15 09 45.87 25.6w 15VL166 568 C~2lVe 2016 10 10.51973 03 20 46.471 +15 09 45.35 26.3w 15VL166 568 C~2lVe 2016 11 04.41826 03 18 33.247 +14 59 33.40 25.5w 15VL166 568 C~2lVe 2016 12 24.31885 03 14 01.766 +14 41 52.07 25.5w 15VL166 568 C~2lVe 2016 12 29.38526 03 13 42.343 +14 40 48.81 26.0w 15VL166 568 C~2lVe 2017 01 02.39267 03 13 28.795 +14 40 07.28 26.0w 15VL166 568 C~2lVe 2017 01 02.42106 03 13 28.709 +14 40 07.17 24.9w 15VL166 568 C~2lVe 2017 01 26.30729 03 12 44.948 +14 38 44.75 25.2w 15VL166 568 C~2lVe 2017 01 26.31474 03 12 44.935 +14 38 44.60 25.0w 15VL166 568 C~2lVe 2017 12 16.34460 03 23 41.081 +15 08 01.16 15VL166 568 C~2lVe
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 -0.03 0.00 -0.12
2 0.8187 12660.32 -0.18 -395.48 -0.05
3 0.8869 11370.56 0.03 -536.79 0.13
4 0.8897 11301.32 0.13 -541.63 0.07
5 0.8898 11297.02 0.04 -541.66 0.30
6 0.9716 8846.87 -0.02 -642.98 -0.04
7 0.9717 8843.12 0.07 -643.04 -0.04
8 0.9718 8839.29 0.09 -643.17 -0.11
9 0.9802 8561.79 0.02 -648.24 0.26
10 0.9990 7947.07 0.01 -657.20 -0.00
11 0.9991 7942.75 -0.06 -657.24 -0.01
12 1.0510 6327.52 -0.27 -656.75 0.09
13 1.1222 4661.54 0.06 -605.50 -0.06
14 1.1248 4617.35 -0.17 -602.95 -0.31
15 1.1385 4414.66 -0.04 -587.42 -0.12
16 1.2177 4109.80 0.39 -481.51 -0.04
17 1.8071 20677.71 0.08 -1020.88 -0.02
18 1.8565 20005.27 -0.15 -1137.26 -0.00
19 1.8617 19904.97 -0.03 -1148.23 0.17
20 1.8972 19090.45 -0.01 -1216.37 0.06
21 1.8973 19086.26 0.06 -1216.52 0.16
22 1.8974 19084.99 0.07 -1216.72 0.04
23 1.9655 17047.04 0.10 -1303.76 0.02
24 2.1021 12948.46 0.06 -1284.50 -0.01
25 2.1160 12658.87 -0.31 -1270.05 -0.10
26 2.1270 12457.58 -0.07 -1257.40 -0.13
27 2.1271 12456.34 0.07 -1257.17 0.00
28 2.1925 11820.22 0.11 -1166.05 -0.02
29 2.1925 11820.00 -0.07 -1166.15 -0.15
30 3.0796 21524.33 0.02 -1974.66 0.04
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.
15VL166 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.377 48.388 48.366 ecceobj 0.329 0.329 0.328 incobj 5.440 5.440 5.440 qmin 31.984 31.985 31.985 qmax 64.374 64.381 64.250 amean 47.797 47.797 47.797 amin 47.302 47.294 47.318 amax 48.420 48.437 48.424 emean 0.312 0.312 0.311 emin 0.294 0.294 0.294 emax 0.329 0.329 0.328 imean 6.680 6.674 6.690 imin 5.637 5.637 5.637 imax 7.485 7.469 7.548 excite_mean 0.333 0.333 0.333 fracstop 1.000 1.000 1.000 cjmean 3.008 3.007 3.008 libcent 0 70.9 71.2 70.6 libamp 0 13.3 15.3 11.0 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 173.8 178.0 171.1 kozaiamp 180.0 180.0 180.0