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: 15VN165 # Created Fri Nov 22 02:10:32 2024 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 2.12y # First observation: 2015/08/11 # Last observation: 2017/09/22 Preliminary a, adot, b, bdot, g, gdot: -0.000182 0.042846 -0.000013 0.002045 0.033654 0.000000 # Chi-squared of fit: 10.18 DOF: 54 RMS: 0.10 # Min/Max residuals: -0.41 0.29 # Exact a, adot, b, bdot, g, gdot: 1.954309E-05 4.173046E-02 9.059919E-07 1.994345E-03 3.299380E-02 8.551660E-04 # Covariance matrix: 2.4747E-13 -6.4113E-14 5.2365E-15 1.8675E-15 1.4949E-13 8.4804E-13 -6.4113E-14 5.0855E-13 1.3136E-15 1.7258E-14 2.0768E-13 6.5964E-12 5.2365E-15 1.3136E-15 1.1398E-13 -9.3802E-14 5.9245E-15 3.5767E-14 1.8675E-15 1.7258E-14 -9.3802E-14 1.3187E-13 1.0009E-14 3.0285E-13 1.4949E-13 2.0768E-13 5.9245E-15 1.0009E-14 2.4916E-13 3.9615E-12 8.4804E-13 6.5964E-12 3.5767E-14 3.0285E-13 3.9615E-12 1.1609E-10 # lat0 lon0 xBary yBary zBary JD0 -2.937287 51.718899 1.014336 0.002999 0.056020 2457246.102289 # Heliocentric elements and errors Epoch: 2457240.5000 = 2015/08/06 Mean Anomaly: 357.20534 +/- 0.048 Argument of Peri: 316.35575 +/- 0.080 Long of Asc Node: 97.91108 +/- 0.005 Inclination: 3.94824 +/- 0.000 Eccentricity: 0.22853136 +/- 0.0000 Semi-Major Axis: 39.21020913 +/- 0.0027 Time of Perihelion: 2457936.6830 +/- 12.1 Perihelion: 30.24944667 +/- 0.0028 Aphelion: 48.17097160 +/- 0.0038 Period (y) 245.5313 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.50969104 +/- 0.0003 Ecliptic Y 23.08797784 +/- 0.0004 Ecliptic Z -1.55304863 +/- 0.0000 Ecliptic XDOT -0.00267115 +/- 0.0000 Ecliptic YDOT 0.00220123 +/- 0.0000 Ecliptic ZDOT 0.00016170 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.26705677 +/- 0.0003 Geocenter to KBO 30.30872563 +/- 0.0005 # Hcoef: 10.02
The following table shows the complete astrometric record for 15VN165. 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 (15VN165) followed by the observatory code and reference code for the source of the astrometry.
2015 08 11.60150 03 20 21.059 +15 21 23.12 25.2w 15VN165 568 C~2lVb 2015 09 06.61481 03 20 29.847 +15 19 48.89 25.3w 15VN165 568 C~2lVb 2015 09 12.50491 03 20 19.742 +15 18 43.99 25.3w 15VN165 568 C~2lVb 2015 10 07.42821 03 18 52.507 +15 11 37.72 25.1w 15VN165 568 C~2lVb 2015 11 07.34843 03 15 52.469 +14 59 21.28 24.6r 15VN165 568 C~2lVb 2015 11 07.39058 03 15 52.194 +14 59 20.27 24.8r 15VN165 568 C~2lVb 2015 11 07.43274 03 15 51.897 +14 59 19.31 24.8r 15VN165 568 C~2lVb 2015 11 10.51713 03 15 31.808 +14 58 02.76 24.9w 15VN165 568 C~2lVb 2015 11 10.54648 03 15 31.593 +14 58 02.01 25.0w 15VN165 568 C~2lVb 2015 11 17.36382 03 14 46.957 +14 55 15.10 25.0w 15VN165 568 C~2lVb 2015 11 17.41043 03 14 46.649 +14 55 14.03 24.9w 15VN165 568 C~2lVb 2015 12 06.37266 03 12 47.442 +14 48 14.44 24.8w 15VN165 568 C~2lVb 2015 12 13.30706 03 12 08.197 +14 46 06.98 24.7w 15VN165 568 C~2lVb 2015 12 13.36559 03 12 07.883 +14 46 05.83 24.9w 15VN165 568 C~2lVb 2016 01 01.36029 03 10 41.111 +14 42 00.36 24.8w 15VN165 568 C~2lVb 2016 01 07.30705 03 10 21.637 +14 41 19.80 25.1w 15VN165 568 C~2lVb 2016 02 04.34036 03 09 50.283 +14 42 31.36 25.1w 15VN165 568 C~2lVb 2016 02 11.22942 03 09 58.801 +14 43 56.42 25.2w 15VN165 568 C~2lVb 2016 09 27.51883 03 29 15.418 +15 58 18.28 25.1w 15VN165 568 C~2lVb 2016 09 29.49637 03 29 07.974 +15 57 44.73 25.4w 15VN165 568 C~2lVb 2016 10 07.59973 03 28 33.147 +15 55 14.47 25.4w 15VN165 568 C~2lVb 2016 10 09.50422 03 28 24.066 +15 54 36.58 25.1w 15VN165 568 C~2lVb 2016 10 09.57681 03 28 23.712 +15 54 35.18 24.9w 15VN165 568 C~2lVb 2016 11 02.49102 03 26 06.681 +15 45 40.98 25.1w 15VN165 568 C~2lVb 2016 11 04.46713 03 25 54.011 +15 44 54.17 24.9w 15VN165 568 C~2lVb 2016 12 28.44224 03 20 32.821 +15 27 32.49 25.3w 15VN165 568 C~2lVb 2016 12 28.45409 03 20 32.778 +15 27 32.34 25.0w 15VN165 568 C~2lVb 2017 01 27.30860 03 19 18.897 +15 26 02.90 25.3w 15VN165 568 C~2lVb 2017 09 15.62132 03 39 34.734 +16 42 49.62 25.3w 15VN165 568 C~2lVb 2017 09 22.59895 03 39 17.960 +16 41 26.74 24.7w 15VN165 568 C~2lVb
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 0.09 0.00 0.01
2 0.0712 98.83 -0.01 -123.58 -0.41
3 0.0873 -59.09 -0.02 -148.98 0.06
4 0.1556 -1388.63 0.02 -237.33 -0.10
5 0.2402 -4098.34 -0.09 -273.77 -0.15
6 0.2404 -4102.45 -0.04 -273.70 -0.13
7 0.2405 -4106.86 -0.26 -273.51 0.02
8 0.2489 -4407.97 0.29 -271.53 0.06
9 0.2490 -4411.18 0.00 -271.44 0.12
10 0.2677 -5079.57 -0.03 -263.54 0.07
11 0.2678 -5084.16 0.01 -263.41 0.11
12 0.3197 -6863.47 -0.13 -214.12 0.11
13 0.3387 -7446.80 -0.06 -186.67 0.14
14 0.3388 -7451.50 0.04 -186.57 -0.05
15 0.3909 -8732.26 0.09 -89.19 -0.01
16 0.4071 -9015.94 0.02 -53.01 0.16
17 0.4839 -9436.13 -0.02 137.50 0.00
18 0.5027 -9294.04 0.11 186.53 0.02
19 1.1305 8030.52 -0.06 211.25 -0.04
20 1.1359 7918.04 0.17 205.07 -0.06
21 1.1581 7393.48 -0.11 182.91 -0.05
22 1.1633 7257.02 -0.07 178.44 -0.01
23 1.1635 7251.72 0.06 178.34 0.03
24 1.2290 5201.68 0.02 150.61 0.02
25 1.2344 5012.76 0.04 150.84 0.00
26 1.3822 258.80 -0.03 313.67 0.10
27 1.3822 258.16 0.08 313.68 0.05
28 1.4639 -797.33 -0.10 500.71 0.02
29 2.0972 17361.85 -0.05 673.47 -0.05
30 2.1164 17106.40 0.05 648.96 -0.06
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.
15VN165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.636 39.649 39.623 ecceobj 0.236 0.236 0.236 incobj 3.949 3.949 3.949 qmin 29.928 29.838 29.957 qmax 49.716 49.814 49.760 amean 39.456 39.456 39.456 amin 38.945 38.965 38.914 amax 40.040 40.042 40.077 emean 0.226 0.227 0.224 emin 0.210 0.212 0.207 emax 0.242 0.244 0.243 imean 2.434 2.194 2.878 imin 1.701 1.599 1.959 imax 3.022 2.807 3.618 excite_mean 0.230 0.230 0.230 fracstop 1.000 1.000 1.000 cjmean 2.991 2.991 2.991 libcent 0 180.1 180.4 180.8 libamp 0 105.7 100.4 122.1 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 249.3 234.8 282.8 kozaiamp 95.9 104.3 60.1