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: 15VJ171 # Created Sat Apr 20 01:17:45 2024 # Orbit generated from Bernstein formalism # Fitting 31 observations of 31 # Arc: 2.04y # First observation: 2015/09/07 # Last observation: 2017/09/20 Preliminary a, adot, b, bdot, g, gdot: -0.000101 0.026884 0.000018 0.010641 0.026359 0.000000 # Chi-squared of fit: 13.20 DOF: 56 RMS: 0.12 # Min/Max residuals: -0.28 0.39 # Exact a, adot, b, bdot, g, gdot: 1.549776E-05 2.662669E-02 5.890024E-06 1.059054E-02 2.620367E-02 5.130466E-04 # Covariance matrix: 2.2842E-13 -4.1217E-14 -7.3729E-15 3.8725E-14 1.5983E-13 2.1561E-12 -4.1217E-14 2.9828E-13 -2.2683E-14 1.0789E-13 1.5799E-13 5.9322E-12 -7.3729E-15 -2.2683E-14 1.2261E-13 -1.1226E-13 -2.1064E-14 -8.0233E-13 3.8725E-14 1.0789E-13 -1.1226E-13 2.0018E-13 1.0453E-13 3.8226E-12 1.5983E-13 1.5799E-13 -2.1064E-14 1.0453E-13 2.7542E-13 5.7793E-12 2.1561E-12 5.9322E-12 -8.0233E-13 3.8226E-12 5.7793E-12 2.1023E-10 # lat0 lon0 xBary yBary zBary JD0 -1.180513 52.060323 0.934076 -0.007823 -0.386860 2457273.133899 # Heliocentric elements and errors Epoch: 2457270.5000 = 2015/09/05 Mean Anomaly: 358.14990 +/- 0.143 Argument of Peri: 359.45510 +/- 0.203 Long of Asc Node: 53.61253 +/- 0.000 Inclination: 21.70509 +/- 0.001 Eccentricity: 0.16665907 +/- 0.0001 Semi-Major Axis: 46.26228818 +/- 0.0036 Time of Perihelion: 2457861.1516 +/- 45.6 Perihelion: 38.55225823 +/- 0.0040 Aphelion: 53.97231813 +/- 0.0050 Period (y) 314.6653 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 24.42911314 +/- 0.0005 Ecliptic Y 29.82146002 +/- 0.0006 Ecliptic Z -0.78600824 +/- 0.0000 Ecliptic XDOT -0.00214899 +/- 0.0000 Ecliptic YDOT 0.00176432 +/- 0.0000 Ecliptic ZDOT 0.00110525 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.55799340 +/- 0.0006 Geocenter to KBO 38.16258934 +/- 0.0008 # Hcoef: 8.88
The following table shows the complete astrometric record for 15VJ171. 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 (15VJ171) followed by the observatory code and reference code for the source of the astrometry.
2015 09 07.63311 03 19 51.208 +17 08 31.32 25.1w 15VJ171 568 C~2nw9 2015 09 12.49674 03 19 42.656 +17 08 20.17 24.8w 15VJ171 568 C~2nw9 2015 10 07.54436 03 18 24.582 +17 05 21.76 24.9w 15VJ171 568 C~2nw9 2015 10 09.58362 03 18 16.030 +17 04 59.48 25.1w 15VJ171 568 C~2nw9 2015 11 07.33788 03 15 52.674 +16 58 28.17 24.3r 15VJ171 568 C~2nw9 2015 11 07.38006 03 15 52.432 +16 58 27.59 24.4r 15VJ171 568 C~2nw9 2015 11 07.42224 03 15 52.203 +16 58 26.97 24.5r 15VJ171 568 C~2nw9 2015 11 10.50536 03 15 35.295 +16 57 40.16 24.7w 15VJ171 568 C~2nw9 2015 11 17.35218 03 14 57.641 +16 55 56.70 24.8w 15VJ171 568 C~2nw9 2015 11 17.39878 03 14 57.381 +16 55 55.97 24.9w 15VJ171 568 C~2nw9 2015 12 06.36096 03 13 16.908 +16 51 29.70 24.9w 15VJ171 568 C~2nw9 2015 12 06.49848 03 13 16.190 +16 51 27.88 25.2w 15VJ171 568 C~2nw9 2016 01 01.34872 03 11 27.983 +16 47 28.39 24.9w 15VJ171 568 C~2nw9 2016 01 07.41130 03 11 10.118 +16 47 03.46 24.7w 15VJ171 568 C~2nw9 2016 01 08.25624 03 11 07.942 +16 47 01.03 25.2w 15VJ171 568 C~2nw9 2016 09 07.57363 03 25 22.808 +18 06 47.86 15VJ171 568 C~2nw9 2016 09 27.51061 03 24 34.568 +18 05 38.93 25.3w 15VJ171 568 C~2nw9 2016 09 29.48481 03 24 27.839 +18 05 25.24 25.1w 15VJ171 568 C~2nw9 2016 10 05.48792 03 24 05.455 +18 04 36.40 25.2w 15VJ171 568 C~2nw9 2016 10 07.58817 03 23 56.931 +18 04 17.10 25.1w 15VJ171 568 C~2nw9 2016 10 09.49252 03 23 48.983 +18 03 58.70 25.1w 15VJ171 568 C~2nw9 2016 10 09.56525 03 23 48.690 +18 03 57.98 24.8w 15VJ171 568 C~2nw9 2016 11 02.52573 03 21 51.085 +17 59 03.06 25.0w 15VJ171 568 C~2nw9 2016 11 04.40084 03 21 40.942 +17 58 36.77 24.9w 15VJ171 568 C~2nw9 2016 12 25.28177 03 17 22.335 +17 47 46.92 24.4w 15VJ171 568 C~2nw9 2016 12 28.42845 03 17 10.494 +17 47 22.51 25.0w 15VJ171 568 C~2nw9 2017 01 02.42780 03 16 53.438 +17 46 51.04 25.0w 15VJ171 568 C~2nw9 2017 01 26.34230 03 16 04.816 +17 46 24.75 25.2w 15VJ171 568 C~2nw9 2017 01 27.27995 03 16 04.122 +17 46 28.44 25.3w 15VJ171 568 C~2nw9 2017 09 15.56413 03 30 45.390 +19 04 26.35 25.1w 15VJ171 568 C~2nw9 2017 09 20.61305 03 30 33.541 +19 04 16.16 25.0w 15VJ171 568 C~2nw9
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 0.10
2 0.0133 -121.35 -0.03 20.61 -0.05
3 0.0819 -1248.89 -0.03 135.75 -0.03
4 0.0875 -1373.11 0.01 145.83 -0.03
5 0.1662 -3460.61 0.18 301.24 0.04
6 0.1663 -3464.11 0.08 301.59 0.12
7 0.1664 -3467.45 0.16 301.84 0.11
8 0.1749 -3713.91 -0.02 319.98 -0.00
9 0.1936 -4262.65 -0.00 361.48 -0.01
10 0.1937 -4266.45 -0.01 361.75 -0.05
11 0.2457 -5728.62 0.09 484.20 -0.01
12 0.2460 -5739.05 -0.22 485.16 0.01
13 0.3168 -7302.16 -0.07 666.35 -0.09
14 0.3334 -7556.41 -0.28 710.72 0.05
15 0.3357 -7587.22 0.08 716.71 -0.12
16 1.0019 5470.98 -0.09 2187.24 0.03
17 1.0565 4787.30 -0.05 2291.96 -0.04
18 1.0619 4690.92 -0.03 2302.68 0.03
19 1.0783 4369.51 0.18 2335.25 -0.17
20 1.0841 4246.94 -0.24 2347.02 -0.02
21 1.0893 4132.55 -0.14 2357.62 0.06
22 1.0895 4128.33 0.18 2357.97 -0.02
23 1.1551 2430.13 -0.20 2495.42 -0.13
24 1.1602 2283.45 -0.12 2506.66 0.02
25 1.2995 -1451.82 0.39 2824.88 -0.01
26 1.3081 -1621.51 0.02 2845.15 -0.15
27 1.3218 -1864.99 0.10 2878.00 0.24
28 1.3873 -2542.57 -0.09 3033.41 0.00
29 1.3899 -2551.18 -0.05 3039.56 0.07
30 2.0231 10775.20 0.02 4419.34 0.06
31 2.0369 10609.27 0.05 4450.02 -0.02
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.
15VJ171 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.765 46.778 46.752 ecceobj 0.175 0.175 0.175 incobj 21.634 21.634 21.634 qmin 37.557 37.530 37.536 qmax 55.575 55.574 55.563 amean 46.355 46.368 46.336 amin 45.950 45.978 45.953 amax 46.814 46.820 46.803 emean 0.173 0.173 0.172 emin 0.159 0.160 0.159 emax 0.188 0.187 0.188 imean 20.481 20.482 20.478 imin 20.060 20.063 20.039 imax 20.885 20.883 20.880 excite_mean 0.390 0.390 0.390 fracstop 1.000 1.000 1.000 cjmean 2.939 2.939 2.939 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 175.4 175.8 175.4 kozaiamp 180.0 179.9 180.0