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: 15VG173 # Created Tue Apr 1 01:10:43 2025 # Orbit generated from Bernstein formalism # Fitting 41 observations of 41 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000069 0.021154 -0.000007 0.000814 0.022735 0.000000 # Chi-squared of fit: 21.10 DOF: 76 RMS: 0.13 # Min/Max residuals: -0.39 0.33 # Exact a, adot, b, bdot, g, gdot: 1.408332E-05 2.118006E-02 -1.052633E-06 8.160477E-04 2.280068E-02 -1.427967E-03 # Covariance matrix: 2.4042E-13 -2.6853E-13 4.0799E-15 -7.4009E-15 -1.1806E-13 -3.0443E-12 -2.6853E-13 4.2143E-13 -7.7773E-15 1.4173E-14 2.2127E-13 5.8249E-12 4.0799E-15 -7.7773E-15 1.4182E-13 -8.0020E-14 -5.2652E-15 -1.2526E-13 -7.4009E-15 1.4173E-14 -8.0020E-14 6.0804E-14 8.3853E-15 2.2867E-13 -1.1806E-13 2.2127E-13 -5.2652E-15 8.3853E-15 2.1991E-13 3.5408E-12 -3.0443E-12 5.8249E-12 -1.2526E-13 2.2867E-13 3.5408E-12 9.3949E-11 # lat0 lon0 xBary yBary zBary JD0 -1.887837 47.699459 -0.116396 -0.032224 -0.982077 2456978.772168 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 262.21514 +/- 0.112 Argument of Peri: 65.54224 +/- 0.102 Long of Asc Node: 87.69564 +/- 0.008 Inclination: 2.88076 +/- 0.001 Eccentricity: 0.06848174 +/- 0.0004 Semi-Major Axis: 44.23049730 +/- 0.0039 Time of Perihelion: 2486154.8670 +/- 33.1 Perihelion: 41.20151598 +/- 0.0196 Aphelion: 47.25947863 +/- 0.0197 Period (y) 294.1650 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.07360395 +/- 0.0006 Ecliptic Y 33.22769855 +/- 0.0007 Ecliptic Z -1.44488485 +/- 0.0000 Ecliptic XDOT -0.00199849 +/- 0.0000 Ecliptic YDOT 0.00158233 +/- 0.0000 Ecliptic ZDOT 0.00010369 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.83959521 +/- 0.0006 Geocenter to KBO 43.85833662 +/- 0.0009 # Hcoef: 8.40
The following table shows the complete astrometric record for 15VG173. 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 (15VG173) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27139 03 03 08.249 +15 17 48.98 24.6r 15VG173 568 C~2nwG 2014 11 17.38009 03 03 07.736 +15 17 46.58 24.7r 15VG173 568 C~2nwG 2014 11 17.49387 03 03 07.227 +15 17 44.51 25.8r 15VG173 568 C~2nwG 2014 11 19.28114 03 02 59.010 +15 17 11.84 24.8r 15VG173 568 C~2nwG 2014 11 23.38468 03 02 40.333 +15 15 57.93 24.5r 15VG173 568 C~2nwG 2015 08 11.61007 03 12 18.975 +15 59 58.33 25.2w 15VG173 568 C~2nwG 2015 09 06.62757 03 12 12.979 +15 58 41.79 25.2w 15VG173 568 C~2nwG 2015 09 12.51723 03 12 03.546 +15 57 53.02 25.0w 15VG173 568 C~2nwG 2015 10 07.45292 03 10 54.389 +15 52 40.71 24.8w 15VG173 568 C~2nwG 2015 10 08.45753 03 10 50.753 +15 52 25.08 24.8w 15VG173 568 C~2nwG 2015 10 08.51654 03 10 50.531 +15 52 24.15 25.7w 15VG173 568 C~2nwG 2015 11 07.36426 03 08 43.184 +15 43 38.94 24.8r 15VG173 568 C~2nwG 2015 11 07.40638 03 08 42.981 +15 43 38.19 24.4r 15VG173 568 C~2nwG 2015 11 07.44859 03 08 42.781 +15 43 37.44 24.6r 15VG173 568 C~2nwG 2015 11 10.53471 03 08 28.385 +15 42 40.29 25.0w 15VG173 568 C~2nwG 2015 11 17.42797 03 07 56.254 +15 40 33.92 25.2w 15VG173 568 C~2nwG 2015 12 06.39016 03 06 31.831 +15 35 12.08 25.3w 15VG173 568 C~2nwG 2015 12 13.32462 03 06 04.038 +15 33 30.68 25.1w 15VG173 568 C~2nwH 2015 12 13.38310 03 06 03.811 +15 33 29.71 24.8w 15VG173 568 C~2nwH 2016 01 01.37764 03 05 01.949 +15 29 58.13 25.6w 15VG173 568 C~2nwH 2016 01 07.32440 03 04 47.829 +15 29 15.58 25.2w 15VG173 568 C~2nwH 2016 02 04.30735 03 04 22.292 +15 28 52.58 25.6w 15VG173 568 C~2nwH 2016 02 04.31413 03 04 22.264 +15 28 52.80 25.3w 15VG173 568 C~2nwH 2016 02 04.32803 03 04 22.299 +15 28 52.95 25.1w 15VG173 568 C~2nwH 2016 02 05.26985 03 04 22.683 +15 28 57.45 25.0w 15VG173 568 C~2nwH 2016 02 10.29068 03 04 26.103 +15 29 27.10 25.0w 15VG173 568 C~2nwH 2016 09 07.55050 03 16 57.253 +16 20 14.67 15VG173 568 C~2nwH 2016 09 26.61279 03 16 15.812 +16 17 03.19 25.4w 15VG173 568 C~2nwH 2016 10 10.42589 03 15 29.597 +16 13 46.87 25.0w 15VG173 568 C~2nwH 2016 10 10.48430 03 15 29.376 +16 13 46.00 25.7w 15VG173 568 C~2nwH 2016 10 10.50790 03 15 29.276 +16 13 45.62 25.2w 15VG173 568 C~2nwH 2016 10 27.50838 03 14 18.783 +16 08 59.82 25.0w 15VG173 568 C~2nwH 2016 11 03.53341 03 13 46.833 +16 06 53.70 24.8w 15VG173 568 C~2nwH 2016 12 29.36878 03 09 54.160 +15 52 42.32 25.0w 15VG173 568 C~2nwH 2017 01 01.26608 03 09 46.154 +15 52 17.20 25.7w 15VG173 568 C~2nwH 2017 01 02.37586 03 09 43.235 +15 52 08.62 25.0w 15VG173 568 C~2nwH 2017 01 26.26424 03 09 05.618 +15 50 43.79 23.8w 15VG173 568 C~2nwH 2017 01 26.27054 03 09 05.606 +15 50 43.87 25.2w 15VG173 568 C~2nwH 2017 09 15.60092 03 21 32.591 +16 40 36.31 25.1w 15VG173 568 C~2nwH 2017 09 22.58685 03 21 16.931 +16 39 26.26 15VG173 568 C~2nwH 2017 12 16.38250 03 15 27.163 +16 17 15.40 25.6w 15VG173 568 C~2nwH
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 0.12 0.00 0.33
2 0.0003 -7.80 -0.05 -0.25 -0.05
3 0.0006 -15.45 0.29 -0.19 -0.11
4 0.0055 -138.73 -0.01 1.43 0.02
5 0.0167 -418.89 -0.17 5.53 -0.07
6 0.7319 8347.35 -0.12 267.07 0.03
7 0.8032 8243.41 -0.04 216.37 0.10
8 0.8193 8099.06 0.09 205.74 -0.21
9 0.8876 7052.88 -0.13 172.28 0.07
10 0.8903 6998.08 -0.04 171.33 0.05
11 0.8905 6994.74 -0.06 171.30 0.04
12 0.9722 5081.52 0.16 161.97 -0.18
13 0.9723 5078.49 0.11 162.05 -0.14
14 0.9724 5075.51 0.11 162.11 -0.11
15 0.9809 4859.81 -0.08 163.52 -0.02
16 0.9997 4378.69 -0.07 168.05 0.03
17 1.0517 3117.22 0.10 191.31 0.01
18 1.0706 2703.13 0.07 203.83 0.27
19 1.0708 2699.71 0.06 203.80 0.11
20 1.1228 1781.83 -0.03 246.10 0.09
21 1.1391 1573.89 -0.10 261.44 0.03
22 1.2157 1212.70 -0.02 341.20 -0.33
23 1.2157 1212.38 -0.39 341.52 -0.03
24 1.2158 1212.90 0.06 341.52 -0.06
25 1.2183 1219.48 0.02 344.32 -0.06
26 1.2321 1275.19 -0.23 359.16 -0.07
27 1.8077 12546.23 -0.13 380.25 0.02
28 1.8599 11918.10 0.15 351.77 0.23
29 1.8978 11222.21 0.04 337.32 -0.01
30 1.8979 11218.90 0.09 337.32 0.01
31 1.8980 11217.40 -0.04 337.34 0.04
32 1.9445 10159.68 -0.04 329.85 0.08
33 1.9638 9681.23 -0.01 330.29 0.07
34 2.1166 6215.60 0.14 407.99 -0.12
35 2.1246 6097.49 0.15 414.99 -0.19
36 2.1276 6054.58 0.11 418.11 0.13
37 2.1930 5508.66 0.01 483.26 0.01
38 2.1930 5508.52 -0.08 483.38 0.11
39 2.8291 16708.34 -0.02 535.43 -0.07
40 2.8482 16471.34 -0.12 525.35 -0.22
41 3.0804 11243.41 0.04 548.04 0.19
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.
15VG173 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.538 44.548 44.528 ecceobj 0.063 0.063 0.062 incobj 2.880 2.880 2.880 qmin 40.349 40.309 40.355 qmax 48.267 48.356 48.297 amean 44.222 44.231 44.212 amin 43.877 43.878 43.868 amax 44.591 44.612 44.579 emean 0.068 0.069 0.068 emin 0.053 0.053 0.053 emax 0.083 0.085 0.084 imean 1.271 1.272 1.270 imin 0.520 0.521 0.519 imax 1.847 1.850 1.845 excite_mean 0.072 0.073 0.071 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.098 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 180.6 180.9 180.9 kozaiamp 179.9 180.0 180.0