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: 15VN170 # Created Sun Dec 22 02:10:36 2024 # Orbit generated from Bernstein formalism # Fitting 32 observations of 32 # Arc: 2.27y # First observation: 2015/09/07 # Last observation: 2017/12/13 Preliminary a, adot, b, bdot, g, gdot: -0.000121 0.026851 0.000001 -0.007811 0.026393 0.000000 # Chi-squared of fit: 3.03 DOF: 58 RMS: 0.05 # Min/Max residuals: -0.21 0.18 # Exact a, adot, b, bdot, g, gdot: 1.632228E-05 2.653474E-02 -4.757607E-06 -7.721389E-03 2.629052E-02 -1.297223E-03 # Covariance matrix: 1.8998E-13 -6.1063E-14 5.0339E-15 -1.3492E-14 1.1879E-13 8.8096E-13 -6.1063E-14 3.6419E-13 3.0456E-14 -1.1880E-13 1.5204E-13 7.7150E-12 5.0339E-15 3.0456E-14 1.0688E-13 -9.4676E-14 2.1696E-14 9.3653E-13 -1.3492E-14 -1.1880E-13 -9.4676E-14 1.6665E-13 -7.6909E-14 -3.6317E-12 1.1879E-13 1.5204E-13 2.1696E-14 -7.6909E-14 2.2596E-13 5.0006E-12 8.8096E-13 7.7150E-12 9.3653E-13 -3.6317E-12 5.0006E-12 2.3587E-10 # lat0 lon0 xBary yBary zBary JD0 -2.306983 52.530028 0.937273 -0.015113 -0.378839 2457273.125689 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 320.69918 +/- 0.171 Argument of Peri: 235.82698 +/- 0.232 Long of Asc Node: 223.38508 +/- 0.000 Inclination: 16.47486 +/- 0.001 Eccentricity: 0.10513616 +/- 0.0004 Semi-Major Axis: 41.60013791 +/- 0.0041 Time of Perihelion: 2467969.4140 +/- 46.5 Perihelion: 37.22645927 +/- 0.0179 Aphelion: 45.97381655 +/- 0.0181 Period (y) 268.3183 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.09106055 +/- 0.0004 Ecliptic Y 29.89453256 +/- 0.0005 Ecliptic Z -1.53127880 +/- 0.0000 Ecliptic XDOT -0.00229681 +/- 0.0000 Ecliptic YDOT 0.00154179 +/- 0.0000 Ecliptic ZDOT -0.00079795 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.42404313 +/- 0.0005 Geocenter to KBO 38.03652454 +/- 0.0007 # Hcoef: 7.89
The following table shows the complete astrometric record for 15VN170. 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 (15VN170) followed by the observatory code and reference code for the source of the astrometry.
2015 09 07.62490 03 22 56.626 +16 10 18.15 23.9w 15VN170 568 C~2nw6 2015 09 12.48855 03 22 49.315 +16 09 11.67 23.7w 15VN170 568 C~2nw6 2015 10 07.53269 03 21 37.412 +16 01 31.99 23.5w 15VN170 568 C~2nw6 2015 10 07.59208 03 21 37.168 +16 01 30.70 24.1w 15VN170 568 C~2nw6 2015 10 09.57195 03 21 29.334 +16 00 47.24 23.8w 15VN170 568 C~2nw6 2015 11 06.34408 03 19 17.365 +15 49 35.89 23.7r 15VN170 568 C~2nw6 2015 11 06.41470 03 19 16.981 +15 49 34.05 23.5r 15VN170 568 C~2nw6 2015 11 06.48426 03 19 16.602 +15 49 32.32 23.7r 15VN170 568 C~2nw6 2015 11 07.50182 03 19 11.250 +15 49 06.55 23.9w 15VN170 568 C~2nw6 2015 11 17.48361 03 18 18.292 +15 44 56.10 23.9w 15VN170 568 C~2nw6 2015 11 17.57138 03 18 17.805 +15 44 53.73 23.6w 15VN170 568 C~2nw6 2015 12 06.34926 03 16 41.460 +15 37 32.49 23.7w 15VN170 568 C~2nw6 2015 12 06.48675 03 16 40.788 +15 37 29.51 24.0w 15VN170 568 C~2nw6 2015 12 31.37031 03 14 58.962 +15 29 58.48 24.0w 15VN170 568 C~2nw6 2016 01 07.39971 03 14 38.726 +15 28 30.37 24.0w 15VN170 568 C~2nw6 2016 02 05.29926 03 14 07.030 +15 26 07.73 23.6w 15VN170 568 C~2nw6 2016 02 11.25262 03 14 11.548 +15 26 23.58 24.4w 15VN170 568 C~2nw6 2016 09 07.58521 03 29 31.351 +16 07 01.75 24.3w 15VN170 568 C~2nw6 2016 09 27.51883 03 28 48.653 +16 01 38.86 24.3w 15VN170 568 C~2nw6 2016 09 29.49637 03 28 42.459 +16 01 00.45 23.7w 15VN170 568 C~2nw6 2016 10 05.49953 03 28 21.671 +15 58 58.13 24.1w 15VN170 568 C~2nw6 2016 10 07.50403 03 28 14.114 +15 58 15.35 24.2w 15VN170 568 C~2nw6 2016 10 07.59973 03 28 13.729 +15 58 13.28 23.9w 15VN170 568 C~2nw6 2016 10 09.50422 03 28 06.282 +15 57 31.98 24.0w 15VN170 568 C~2nw6 2016 10 09.57681 03 28 05.990 +15 57 30.37 24.2w 15VN170 568 C~2nw6 2016 11 02.49102 03 26 14.528 +15 48 05.16 23.8w 15VN170 568 C~2nw6 2016 11 04.46713 03 26 04.270 +15 47 16.37 24.0w 15VN170 568 C~2nw6 2016 12 28.45409 03 21 42.980 +15 28 09.09 24.2w 15VN170 568 C~2nw6 2017 01 27.30860 03 20 39.121 +15 23 58.33 23.9w 15VN170 568 C~2nw6 2017 09 16.59057 03 35 54.895 +16 01 01.89 23.9w 15VN170 568 C~2nw6 2017 09 23.53642 03 35 39.434 +15 59 05.20 15VN170 568 C~2nw6 2017 12 13.36708 03 29 25.581 +15 29 14.56 24.2w 15VN170 568 C~2nw6
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 -0.07 0.00 0.02
2 0.0133 -118.69 -0.06 -37.79 -0.03
3 0.0819 -1237.55 0.08 -220.56 0.02
4 0.0820 -1241.28 -0.02 -220.92 0.05
5 0.0875 -1361.56 0.03 -234.32 0.01
6 0.1635 -3373.70 0.18 -398.22 0.02
7 0.1637 -3379.53 0.06 -398.58 -0.02
8 0.1639 -3385.27 -0.04 -398.85 0.03
9 0.1667 -3466.55 -0.07 -403.96 -0.03
10 0.1940 -4269.94 0.04 -449.71 0.02
11 0.1942 -4277.35 -0.21 -450.19 -0.09
12 0.2457 -5736.32 -0.05 -517.19 -0.02
13 0.2460 -5746.47 0.03 -517.55 -0.01
14 0.3142 -7286.09 0.06 -570.35 -0.01
15 0.3334 -7591.87 0.00 -578.98 0.06
16 0.4125 -8072.17 0.00 -596.71 0.07
17 0.4288 -8004.87 0.02 -598.53 0.03
18 1.0019 5462.22 -0.06 -1601.64 -0.01
19 1.0565 4786.07 -0.04 -1764.14 0.03
20 1.0619 4690.02 0.06 -1779.48 -0.05
21 1.0784 4369.27 0.04 -1824.49 0.01
22 1.0839 4253.07 0.04 -1839.17 -0.07
23 1.0841 4247.18 -0.07 -1839.82 -0.05
24 1.0893 4132.87 0.03 -1853.44 0.00
25 1.0895 4128.39 0.09 -1853.96 -0.03
26 1.1550 2429.98 -0.02 -2004.32 0.00
27 1.1604 2274.42 -0.00 -2014.82 0.01
28 1.3082 -1667.46 -0.04 -2178.58 -0.00
29 1.3900 -2624.37 0.03 -2186.67 0.05
30 2.0259 10751.10 0.03 -3283.26 -0.01
31 2.0449 10506.22 0.00 -3343.81 -0.03
32 2.2662 4827.37 -0.06 -3780.72 0.07
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.
15VN170 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.974 41.983 41.965 ecceobj 0.108 0.108 0.107 incobj 16.404 16.404 16.404 qmin 36.311 36.359 36.211 qmax 47.270 47.282 47.241 amean 41.656 41.667 41.627 amin 41.327 41.337 41.269 amax 42.015 42.022 41.995 emean 0.107 0.107 0.108 emin 0.092 0.092 0.091 emax 0.125 0.125 0.127 imean 17.728 17.725 17.711 imin 17.077 17.022 17.030 imax 18.433 18.440 18.470 excite_mean 0.323 0.323 0.323 fracstop 1.000 1.000 1.000 cjmean 2.951 2.951 2.951 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 182.9 185.5 180.6 kozaiamp 180.0 180.0 179.9