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: 15VV168 # Created Tue Apr 1 01:10:40 2025 # Orbit generated from Bernstein formalism # Fitting 37 observations of 37 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000006 0.023610 -0.000000 0.000681 0.023804 0.000000 # Chi-squared of fit: 18.51 DOF: 68 RMS: 0.13 # Min/Max residuals: -0.54 0.38 # Exact a, adot, b, bdot, g, gdot: 1.566504E-05 2.372242E-02 1.014225E-06 6.845027E-04 2.395622E-02 -1.744182E-04 # Covariance matrix: 2.4926E-13 -2.7700E-13 3.1305E-15 -5.9208E-15 -1.2727E-13 -2.8309E-12 -2.7700E-13 4.4358E-13 -5.9798E-15 1.1493E-14 2.1687E-13 5.4701E-12 3.1305E-15 -5.9798E-15 1.4252E-13 -7.5222E-14 -3.5132E-15 -8.4035E-14 -5.9208E-15 1.1493E-14 -7.5222E-14 5.5352E-14 6.0057E-15 1.6214E-13 -1.2727E-13 2.1687E-13 -3.5132E-15 6.0057E-15 2.3407E-13 2.9589E-12 -2.8309E-12 5.4701E-12 -8.4035E-14 1.6214E-13 2.9589E-12 7.7084E-11 # lat0 lon0 xBary yBary zBary JD0 -1.351446 46.877251 -0.130836 -0.022984 -0.980517 2456978.792408 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 354.27466 +/- 0.317 Argument of Peri: 327.89556 +/- 0.360 Long of Asc Node: 85.60971 +/- 0.009 Inclination: 2.11807 +/- 0.000 Eccentricity: 0.06231285 +/- 0.0001 Semi-Major Axis: 45.54457892 +/- 0.0030 Time of Perihelion: 2458755.9702 +/- 98.8 Perihelion: 42.70656629 +/- 0.0039 Aphelion: 48.38259155 +/- 0.0042 Period (y) 307.3712 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.09772826 +/- 0.0006 Ecliptic Y 31.26605384 +/- 0.0006 Ecliptic Z -0.98447641 +/- 0.0000 Ecliptic XDOT -0.00199547 +/- 0.0000 Ecliptic YDOT 0.00183507 +/- 0.0000 Ecliptic ZDOT 0.00007878 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.72251287 +/- 0.0006 Geocenter to KBO 41.74280694 +/- 0.0008 # Hcoef: 8.73
The following table shows the complete astrometric record for 15VV168. 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 (15VV168) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.29163 02 59 14.410 +15 34 54.59 24.9r 15VV168 568 C~2nvz 2014 11 17.40051 02 59 13.873 +15 34 52.57 25.0r 15VV168 568 C~2nvz 2014 11 17.51464 02 59 13.327 +15 34 50.31 24.6r 15VV168 568 C~2nvz 2014 11 19.30670 02 59 04.819 +15 34 15.48 25.3r 15VV168 568 C~2nvz 2014 11 23.41007 02 58 45.540 +15 32 56.92 24.6r 15VV168 568 C~2nvz 2015 08 11.62323 03 09 12.492 +16 19 54.91 25.3w 15VV168 568 C~2nvz 2015 09 07.53281 03 09 04.389 +16 18 42.74 25.3w 15VV168 568 C~2nvz 2015 10 07.47166 03 07 43.047 +16 12 40.90 25.0w 15VV168 568 C~2nvz 2015 10 08.47583 03 07 39.220 +16 12 24.49 25.2w 15VV168 568 C~2nvz 2015 10 08.53403 03 07 39.005 +16 12 23.85 25.8w 15VV168 568 C~2nvz 2015 11 06.29151 03 05 31.394 +16 03 34.93 24.7r 15VV168 568 C~2nvz 2015 11 06.35485 03 05 31.076 +16 03 33.93 25.3r 15VV168 568 C~2nvz 2015 11 06.42547 03 05 30.755 +16 03 32.29 25.2r 15VV168 568 C~2nvz 2015 11 06.49480 03 05 30.392 +16 03 31.03 24.8r 15VV168 568 C~2nvz 2015 11 07.51356 03 05 25.485 +16 03 10.91 25.2w 15VV168 568 C~2nvz 2015 11 17.27960 03 04 38.278 +16 00 00.80 25.2w 15VV168 568 C~2nvz 2015 11 17.32888 03 04 38.041 +15 59 59.84 25.0w 15VV168 568 C~2nvz 2015 12 13.34220 03 02 41.892 +15 52 25.50 25.4w 15VV168 568 C~2nvz 2015 12 13.40075 03 02 41.648 +15 52 25.15 25.1w 15VV168 568 C~2nvz 2016 01 01.39556 03 01 38.898 +15 48 36.08 25.2w 15VV168 568 C~2nvz 2016 01 07.34177 03 01 24.843 +15 47 49.54 15VV168 568 C~2nvz 2016 02 04.27190 03 01 01.801 +15 47 15.91 25.5w 15VV168 568 C~2nvz 2016 09 07.55050 03 14 23.729 +16 42 22.61 25.1w 15VV168 568 C~2nvz 2016 09 26.61279 03 13 40.294 +16 39 10.35 24.8w 15VV168 568 C~2nvz 2016 10 10.42589 03 12 52.006 +16 35 48.68 25.4w 15VV168 568 C~2nvz 2016 10 10.48430 03 12 51.775 +16 35 47.76 25.3w 15VV168 568 C~2nvz 2016 10 27.51417 03 11 38.185 +16 30 49.78 25.5w 15VV168 568 C~2nvz 2016 11 03.53920 03 11 04.966 +16 28 37.67 25.5w 15VV168 568 C~2nvz 2016 12 28.39306 03 07 08.220 +16 13 40.93 25.7w 15VV168 568 C~2nvz 2016 12 28.40104 03 07 08.203 +16 13 40.87 25.1w 15VV168 568 C~2nvz 2016 12 29.35861 03 07 05.368 +16 13 31.24 25.1w 15VV168 568 C~2nvz 2016 12 29.36878 03 07 05.344 +16 13 30.93 25.1w 15VV168 568 C~2nvz 2017 01 26.27054 03 06 17.710 +16 11 15.38 25.1w 15VV168 568 C~2nvz 2017 09 15.60092 03 19 31.839 +17 04 35.45 25.1w 15VV168 568 C~2nvz 2017 09 22.58685 03 19 15.534 +17 03 25.88 24.9w 15VV168 568 C~2nvz 2017 12 16.38250 03 13 13.008 +16 40 14.55 25.1w 15VV168 568 C~2nvz 2017 12 16.38715 03 13 12.982 +16 40 14.28 25.8w 15VV168 568 C~2nvz
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 -0.00 0.00 -0.12
2 0.0003 -8.01 -0.10 0.25 0.01
3 0.0006 -16.22 -0.00 0.31 -0.03
4 0.0055 -143.99 -0.05 1.61 0.03
5 0.0168 -433.42 0.18 5.00 -0.04
6 0.7319 9041.60 -0.03 209.42 0.01
7 0.8056 8909.52 0.06 171.50 0.02
8 0.8876 7681.97 0.19 141.54 0.01
9 0.8903 7624.38 -0.06 140.78 -0.12
10 0.8905 7621.22 0.20 141.01 0.12
11 0.9692 5705.87 -0.14 135.86 0.13
12 0.9694 5701.19 -0.19 136.16 0.38
13 0.9696 5696.29 0.08 135.86 0.02
14 0.9698 5690.90 -0.21 136.09 0.21
15 0.9725 5617.31 -0.12 136.21 -0.00
16 0.9993 4910.23 -0.08 141.08 0.02
17 0.9994 4906.68 -0.03 141.10 -0.02
18 1.0706 3170.44 0.17 169.02 -0.54
19 1.0708 3166.96 0.19 169.66 0.00
20 1.1228 2233.34 -0.03 202.28 -0.16
21 1.1391 2025.54 0.05 214.33 0.06
22 1.2156 1696.82 -0.13 275.18 -0.05
23 1.8077 13729.31 -0.06 310.06 0.01
24 1.8599 13073.81 0.01 290.00 0.18
25 1.8977 12348.38 -0.06 280.13 0.00
26 1.8979 12344.92 -0.02 280.12 0.01
27 1.9445 11242.08 -0.00 275.61 -0.06
28 1.9637 10744.97 0.15 276.48 -0.02
29 2.1139 7215.17 0.09 336.29 -0.02
30 2.1139 7214.91 0.20 336.30 -0.03
31 2.1165 7172.95 -0.07 338.19 0.11
32 2.1166 7172.54 -0.04 337.99 -0.12
33 2.1930 6474.76 -0.15 395.43 0.11
34 2.8290 18374.38 -0.11 441.03 -0.04
35 2.8482 18128.62 0.09 434.21 0.05
36 3.0803 12711.46 0.08 456.39 0.03
37 3.0803 12711.02 -0.08 456.23 -0.14
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.
15VV168 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.916 45.925 45.907 ecceobj 0.069 0.069 0.069 incobj 2.117 2.117 2.117 qmin 41.803 41.801 41.777 qmax 49.549 49.557 49.525 amean 45.541 45.550 45.532 amin 45.180 45.173 45.176 amax 45.927 45.944 45.912 emean 0.066 0.066 0.066 emin 0.052 0.053 0.052 emax 0.079 0.079 0.079 imean 0.592 0.593 0.592 imin 0.091 0.091 0.088 imax 0.969 0.968 0.968 excite_mean 0.067 0.067 0.067 fracstop 1.000 1.000 1.000 cjmean 3.115 3.115 3.115 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 144.1 144.3 143.8 kozaiamp 179.9 180.0 179.9