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: 15VX168 # Created Mon Apr 28 01:10:41 2025 # Orbit generated from Bernstein formalism # Fitting 46 observations of 46 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000032 0.021574 -0.000000 0.000905 0.023067 0.000000 # Chi-squared of fit: 11.29 DOF: 86 RMS: 0.09 # Min/Max residuals: -0.31 0.22 # Exact a, adot, b, bdot, g, gdot: 1.461449E-05 2.165194E-02 2.118659E-06 9.087822E-04 2.317570E-02 -3.784037E-04 # Covariance matrix: 2.3862E-13 -2.5742E-13 4.1657E-15 -7.8204E-15 -1.2687E-13 -2.8875E-12 -2.5742E-13 3.9137E-13 -7.6604E-15 1.4516E-14 2.1425E-13 5.3506E-12 4.1657E-15 -7.6604E-15 1.3638E-13 -7.1815E-14 -4.8240E-15 -1.1972E-13 -7.8204E-15 1.4516E-14 -7.1815E-14 4.9769E-14 8.5922E-15 2.2788E-13 -1.2687E-13 2.1425E-13 -4.8240E-15 8.5922E-15 2.1270E-13 3.2029E-12 -2.8875E-12 5.3506E-12 -1.1972E-13 2.2788E-13 3.2029E-12 8.3933E-11 # lat0 lon0 xBary yBary zBary JD0 -1.136388 47.433062 -0.121316 -0.019328 -0.981819 2456978.792408 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 218.48727 +/- 0.670 Argument of Peri: 118.65048 +/- 0.669 Long of Asc Node: 72.36219 +/- 0.005 Inclination: 2.65047 +/- 0.001 Eccentricity: 0.02818927 +/- 0.0003 Semi-Major Axis: 43.16471792 +/- 0.0024 Time of Perihelion: 2497688.3474 +/- 192.8 Perihelion: 41.94793598 +/- 0.0112 Aphelion: 44.38149986 +/- 0.0112 Period (y) 283.5970 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.75402024 +/- 0.0006 Ecliptic Y 32.57900040 +/- 0.0006 Ecliptic Z -0.85566554 +/- 0.0000 Ecliptic XDOT -0.00191689 +/- 0.0000 Ecliptic YDOT 0.00169394 +/- 0.0000 Ecliptic ZDOT 0.00010833 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.12964028 +/- 0.0006 Geocenter to KBO 43.14864235 +/- 0.0009 # Hcoef: 8.08
The following table shows the complete astrometric record for 15VX168. 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 (15VX168) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.29163 03 01 12.325 +15 56 39.84 24.7r 15VX168 568 C~2nvz 2014 11 17.40051 03 01 11.799 +15 56 38.15 24.5r 15VX168 568 C~2nvz 2014 11 17.51464 03 01 11.247 +15 56 36.10 23.9r 15VX168 568 C~2nvz 2014 11 19.30670 03 01 02.905 +15 56 02.27 24.5r 15VX168 568 C~2nvz 2014 11 23.41007 03 00 43.948 +15 54 46.02 24.5r 15VX168 568 C~2nvz 2015 08 11.62323 03 10 36.643 +16 39 10.17 24.4w 15VX168 568 C~2nvz 2015 09 07.53281 03 10 28.269 +16 38 10.51 24.8w 15VX168 568 C~2nvz 2015 09 12.52956 03 10 19.731 +16 37 32.05 24.8w 15VX168 568 C~2nvz 2015 10 07.47166 03 09 08.607 +16 32 30.75 24.6w 15VX168 568 C~2nvz 2015 10 08.47583 03 09 04.861 +16 32 15.40 24.6w 15VX168 568 C~2nvz 2015 10 08.53403 03 09 04.641 +16 32 14.44 24.8w 15VX168 568 C~2nvz 2015 11 06.29151 03 06 59.758 +16 23 48.54 24.6r 15VX168 568 C~2nvz 2015 11 06.35485 03 06 59.460 +16 23 47.30 24.6r 15VX168 568 C~2nvz 2015 11 06.42547 03 06 59.127 +16 23 45.90 24.5r 15VX168 568 C~2nvz 2015 11 06.49480 03 06 58.786 +16 23 44.57 24.4r 15VX168 568 C~2nvz 2015 11 07.51356 03 06 53.974 +16 23 25.43 24.5w 15VX168 568 C~2nvz 2015 11 17.27960 03 06 07.671 +16 20 21.85 24.6w 15VX168 568 C~2nvz 2015 12 06.40765 03 04 41.214 +16 14 45.07 24.6w 15VX168 568 C~2nvz 2015 12 13.34220 03 04 13.114 +16 12 58.46 24.5w 15VX168 568 C~2nvz 2015 12 13.40075 03 04 12.894 +16 12 57.61 24.8w 15VX168 568 C~2nvz 2016 01 01.39556 03 03 10.566 +16 09 09.90 24.9w 15VX168 568 C~2nvz 2016 01 07.34177 03 02 56.462 +16 08 22.19 24.9w 15VX168 568 C~2nvz 2016 02 04.27190 03 02 31.735 +16 07 35.50 25.0w 15VX168 568 C~2nvz 2016 02 10.26162 03 02 35.901 +16 08 05.28 24.8w 15VX168 568 C~2nvz 2016 09 07.55050 03 15 19.556 +17 00 35.86 15VX168 568 C~2nvz 2016 09 26.61279 03 14 36.812 +16 57 35.97 24.7w 15VX168 568 C~2nvz 2016 10 10.42589 03 13 49.477 +16 54 24.62 25.2w 15VX168 568 C~2nvz 2016 10 10.48430 03 13 49.247 +16 54 23.80 24.9w 15VX168 568 C~2nvz 2016 10 10.50790 03 13 49.143 +16 54 23.38 24.7w 15VX168 568 C~2nvz 2016 10 27.51417 03 12 37.157 +16 49 38.65 24.8w 15VX168 568 C~2nvz 2016 10 27.52577 03 12 37.112 +16 49 38.57 24.4w 15VX168 568 C~2nvz 2016 11 03.53920 03 12 04.609 +16 47 31.40 24.7w 15VX168 568 C~2nvz 2016 11 03.55078 03 12 04.547 +16 47 31.15 24.5w 15VX168 568 C~2nvz 2016 12 28.39306 03 08 11.720 +16 32 55.63 25.2w 15VX168 568 C~2nw0 2016 12 28.40104 03 08 11.699 +16 32 55.58 25.3w 15VX168 568 C~2nw0 2016 12 29.35861 03 08 08.902 +16 32 45.87 25.0w 15VX168 568 C~2nw0 2016 12 29.36878 03 08 08.879 +16 32 45.70 24.8w 15VX168 568 C~2nw0 2017 01 01.25561 03 08 00.875 +16 32 18.07 24.2w 15VX168 568 C~2nw0 2017 01 01.26608 03 08 00.843 +16 32 17.98 24.4w 15VX168 568 C~2nw0 2017 01 02.36563 03 07 57.938 +16 32 08.25 25.1w 15VX168 568 C~2nw0 2017 01 02.37586 03 07 57.912 +16 32 08.13 24.9w 15VX168 568 C~2nw0 2017 01 26.27054 03 07 20.625 +16 30 21.90 24.8w 15VX168 568 C~2nw0 2017 09 15.60092 03 19 59.739 +17 21 43.74 24.6w 15VX168 568 C~2nw0 2017 09 22.58685 03 19 43.620 +17 20 38.37 15VX168 568 C~2nw0 2017 12 16.38250 03 13 47.781 +16 58 14.34 24.4w 15VX168 568 C~2nw0 2017 12 16.38715 03 13 47.763 +16 58 14.32 24.6w 15VX168 568 C~2nw0
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 -0.31
2 0.0003 -7.76 0.03 0.50 0.06
3 0.0006 -15.97 -0.06 0.76 0.22
4 0.0055 -140.95 0.07 1.97 0.09
5 0.0168 -424.81 0.15 5.39 -0.05
6 0.7319 8517.26 0.00 223.63 -0.05
7 0.8056 8385.09 0.04 198.49 0.01
8 0.8193 8256.34 -0.07 194.46 -0.01
9 0.8876 7188.99 0.14 180.19 -0.05
10 0.8903 7132.91 -0.07 179.98 0.06
11 0.8905 7129.60 -0.05 179.92 -0.01
12 0.9692 5261.62 -0.09 181.39 0.13
13 0.9694 5257.16 -0.04 181.37 0.05
14 0.9696 5252.16 0.02 181.33 -0.05
15 0.9698 5247.07 -0.09 181.39 -0.03
16 0.9725 5175.19 0.01 181.89 0.01
17 0.9993 4483.60 -0.11 187.67 0.07
18 1.0517 3193.75 -0.19 206.12 -0.22
19 1.0706 2775.26 -0.02 215.38 0.03
20 1.0708 2771.98 0.15 215.44 -0.01
21 1.1228 1846.05 -0.18 245.30 0.01
22 1.1391 1637.56 0.05 255.90 0.01
23 1.2156 1282.32 -0.11 310.12 0.06
24 1.2320 1348.26 -0.05 322.02 0.04
25 1.8077 12786.31 -0.04 383.34 0.00
26 1.8599 12145.05 0.09 371.29 0.07
27 1.8977 11437.08 0.09 366.28 -0.04
28 1.8979 11433.67 0.10 366.37 0.03
29 1.8979 11432.11 -0.08 366.36 0.02
30 1.9445 10357.27 -0.03 366.25 0.05
31 1.9445 10356.62 0.13 366.35 0.14
32 1.9637 9871.73 -0.00 368.21 -0.03
33 1.9637 9870.81 -0.10 368.21 -0.04
34 2.1139 6407.54 -0.05 425.99 0.01
35 2.1139 6407.24 0.00 426.03 0.03
36 2.1165 6365.86 0.02 427.61 0.05
37 2.1166 6365.49 0.10 427.53 -0.04
38 2.1245 6247.11 0.21 432.22 -0.14
39 2.1245 6246.65 0.17 432.26 -0.13
40 2.1275 6203.76 0.01 434.25 -0.02
41 2.1275 6203.37 0.02 434.24 -0.06
42 2.1930 5658.04 -0.02 478.02 -0.02
43 2.8290 17015.10 -0.02 564.00 -0.06
44 2.8482 16773.66 -0.02 560.18 0.01
45 3.0803 11474.58 -0.09 594.60 0.04
46 3.0803 11474.33 -0.07 594.65 0.08
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.
15VX168 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.476 43.483 43.469 ecceobj 0.020 0.020 0.020 incobj 2.647 2.647 2.647 qmin 41.157 41.126 41.173 qmax 45.355 45.351 45.341 amean 43.171 43.177 43.163 amin 42.837 42.852 42.842 amax 43.512 43.513 43.512 emean 0.024 0.025 0.024 emin 0.006 0.007 0.006 emax 0.043 0.043 0.043 imean 1.039 1.041 1.037 imin 0.000 0.000 0.000 imax 1.725 1.726 1.726 excite_mean 0.031 0.031 0.031 fracstop 1.000 1.000 1.000 cjmean 3.090 3.091 3.090 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 195.6 196.0 195.8 kozaiamp 180.0 179.9 180.0