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: 15VR165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 29 observations of 29 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: 0.000003 0.027100 0.000011 0.005947 0.026715 0.000000 # Chi-squared of fit: 5.22 DOF: 52 RMS: 0.07 # Min/Max residuals: -0.21 0.22 # Exact a, adot, b, bdot, g, gdot: 1.686746E-05 2.727480E-02 4.126864E-06 5.997445E-03 2.694730E-02 7.448511E-04 # Covariance matrix: 2.7380E-13 -3.6547E-13 1.8141E-14 -5.4093E-14 -1.6326E-13 -4.1172E-12 -3.6547E-13 8.3011E-13 -5.3675E-14 1.6125E-13 3.9608E-13 1.2247E-11 1.8141E-14 -5.3675E-14 1.9033E-13 -1.3344E-13 -2.9330E-14 -9.1185E-13 -5.4093E-14 1.6125E-13 -1.3344E-13 1.4521E-13 8.5669E-14 2.7418E-12 -1.6326E-13 3.9608E-13 -2.9330E-14 8.5669E-14 3.9274E-13 6.5599E-12 -4.1172E-12 1.2247E-11 -9.1185E-13 2.7418E-12 6.5599E-12 2.0818E-10 # lat0 lon0 xBary yBary zBary JD0 -2.932897 48.115965 -0.109250 -0.050173 -0.982145 2456978.772168 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 35.19862 +/- 0.459 Argument of Peri: 308.50711 +/- 0.517 Long of Asc Node: 61.05379 +/- 0.001 Inclination: 12.72468 +/- 0.001 Eccentricity: 0.04591597 +/- 0.0003 Semi-Major Axis: 39.54460513 +/- 0.0029 Time of Perihelion: 2448089.6935 +/- 115.7 Perihelion: 37.72887605 +/- 0.0138 Aphelion: 41.36033421 +/- 0.0139 Period (y) 248.6790 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.31486610 +/- 0.0006 Ecliptic Y 28.39832302 +/- 0.0006 Ecliptic Z -1.89861601 +/- 0.0000 Ecliptic XDOT -0.00199610 +/- 0.0000 Ecliptic YDOT 0.00192459 +/- 0.0000 Ecliptic ZDOT 0.00060477 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.09083799 +/- 0.0006 Geocenter to KBO 37.10946518 +/- 0.0009 # Hcoef: 8.65
The following table shows the complete astrometric record for 15VR165. 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 (15VR165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27139 03 05 59.147 +14 24 26.01 24.3r 15VR165 568 C~2lVb 2014 11 17.38009 03 05 58.570 +14 24 24.32 24.4r 15VR165 568 C~2lVb 2014 11 17.49387 03 05 57.932 +14 24 22.04 24.3r 15VR165 568 C~2lVb 2014 11 19.28114 03 05 48.309 +14 23 49.85 24.2r 15VR165 568 C~2lVb 2014 11 23.38468 03 05 26.391 +14 22 37.60 24.1r 15VR165 568 C~2lVb 2015 08 11.60150 03 16 48.752 +15 28 04.23 24.7w 15VR165 568 C~2lVb 2015 09 12.50491 03 16 35.229 +15 26 48.09 24.8w 15VR165 568 C~2lVb 2015 10 07.42821 03 15 16.904 +15 21 46.45 24.4w 15VR165 568 C~2lVb 2015 10 08.44001 03 15 12.693 +15 21 30.85 25.0w 15VR165 568 C~2lVb 2015 10 08.49908 03 15 12.433 +15 21 29.82 24.4w 15VR165 568 C~2lVb 2015 11 07.36426 03 12 44.402 +15 12 44.03 24.4r 15VR165 568 C~2lVb 2015 11 07.40638 03 12 44.154 +15 12 43.26 24.5r 15VR165 568 C~2lVc 2015 11 07.44859 03 12 43.929 +15 12 42.44 24.5r 15VR165 568 C~2lVc 2015 11 10.53471 03 12 27.090 +15 11 45.50 24.7w 15VR165 568 C~2lVc 2015 11 17.38127 03 11 49.675 +15 09 41.10 24.4w 15VR165 568 C~2lVc 2015 11 17.42797 03 11 49.410 +15 09 40.20 24.7w 15VR165 568 C~2lVc 2015 12 06.39016 03 10 10.016 +15 04 29.53 24.5w 15VR165 568 C~2lVc 2015 12 13.38310 03 09 36.915 +15 02 55.07 24.6w 15VR165 568 C~2lVc 2016 01 01.37764 03 08 23.492 +14 59 58.61 24.6w 15VR165 568 C~2lVc 2016 01 07.32440 03 08 06.611 +14 59 31.66 24.4w 15VR165 568 C~2lVc 2016 09 07.56206 03 22 30.160 +16 10 42.78 24.9w 15VR165 568 C~2lVc 2016 10 10.43747 03 20 51.606 +16 04 49.63 24.8w 15VR165 568 C~2lVc 2016 10 10.49616 03 20 51.348 +16 04 48.71 24.7w 15VR165 568 C~2lVc 2016 10 10.51394 03 20 51.271 +16 04 48.47 24.7w 15VR165 568 C~2lVc 2016 11 02.51417 03 18 58.099 +15 58 24.08 24.6w 15VR165 568 C~2lVc 2016 11 04.38927 03 18 48.005 +15 57 50.70 24.7w 15VR165 568 C~2lVc 2016 12 24.30148 03 14 36.522 +15 45 22.93 25.1w 15VR165 568 C~2lVc 2017 01 02.40371 03 14 04.840 +15 44 15.22 24.5w 15VR165 568 C~2lVc 2017 01 26.29235 03 13 18.885 +15 43 55.72 24.9w 15VR165 568 C~2lVc
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 -0.18 0.00 -0.13
2 0.0003 -8.52 0.17 0.67 0.06
3 0.0006 -18.06 -0.05 1.02 -0.08
4 0.0055 -161.34 -0.06 8.42 0.05
5 0.0167 -487.40 0.13 26.38 0.10
6 0.7319 10102.12 -0.07 1152.15 0.03
7 0.8193 9892.98 -0.02 1129.97 -0.08
8 0.8875 8718.45 -0.05 1137.23 0.00
9 0.8903 8655.48 0.07 1138.26 0.02
10 0.8904 8651.57 -0.05 1138.26 -0.07
11 0.9722 6443.93 0.22 1200.04 -0.02
12 0.9723 6440.26 0.01 1200.26 0.04
13 0.9724 6436.90 0.12 1200.33 -0.03
14 0.9809 6186.57 0.04 1210.55 0.01
15 0.9996 5630.92 0.02 1235.59 -0.01
16 0.9997 5626.98 -0.08 1235.75 -0.05
17 1.0517 4156.28 -0.05 1323.36 0.06
18 1.0708 3668.95 0.05 1361.85 0.07
19 1.1228 2596.96 -0.03 1480.19 -0.01
20 1.1391 2354.21 -0.21 1520.72 0.07
21 1.8078 15545.69 0.01 2350.18 -0.01
22 1.8978 14074.88 -0.06 2373.01 0.01
23 1.8979 14071.03 -0.06 2373.08 -0.03
24 1.8980 14069.89 -0.03 2373.13 -0.01
25 1.9610 12387.40 0.10 2423.60 -0.02
26 1.9661 12237.62 0.01 2429.17 -0.01
27 2.1028 8530.25 -0.06 2659.02 0.01
28 2.1277 8070.50 0.06 2714.90 0.00
29 2.1931 7424.75 0.06 2872.41 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.
15VR165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.841 39.852 39.831 ecceobj 0.054 0.055 0.053 incobj 12.700 12.700 12.700 qmin 36.772 36.705 36.800 qmax 42.541 42.494 42.576 amean 39.474 39.473 39.477 amin 39.112 39.097 39.129 amax 39.846 39.861 39.839 emean 0.038 0.039 0.035 emin 0.003 0.001 0.006 emax 0.068 0.067 0.069 imean 10.331 10.255 9.845 imin 8.359 8.326 8.044 imax 12.442 12.432 12.402 excite_mean 0.184 0.183 0.175 fracstop 1.000 1.000 1.000 cjmean 3.013 3.013 3.017 libcent 0 181.1 192.0 180.5 libamp 0 93.7 141.6 91.4 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 180.5 179.0 180.9 kozaiamp 180.0 180.0 180.0