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: 15VV172 # Created Fri Nov 22 02:10:36 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 43 observations of 43 # Arc: 9.96y # First observation: 2014/11/17 # Last observation: 2024/11/01 # Chi-squared of fit: 88.80 DOF: 80 RMS: 0.25 # Min/Max residuals: -0.17 1.47 # Exact a, adot, b, bdot, g, gdot: 1.418801E-05 2.080887E-02 -5.009849E-06 -7.585337E-03 2.367167E-02 -3.738492E-03 # Covariance matrix: 1.8084E-13 -1.2387E-13 -4.2989E-14 3.9884E-14 -2.9157E-14 -4.7176E-13 -1.2387E-13 1.0908E-13 3.9567E-14 -3.6643E-14 1.5132E-14 4.3338E-13 -4.2989E-14 3.9567E-14 7.2356E-14 -2.5639E-14 5.7449E-15 1.6598E-13 3.9884E-14 -3.6643E-14 -2.5639E-14 1.8772E-14 -5.8695E-15 -1.5375E-13 -2.9157E-14 1.5132E-14 5.7449E-15 -5.8695E-15 1.0007E-13 6.9741E-14 -4.7176E-13 4.3338E-13 1.6598E-13 -1.5375E-13 6.9741E-14 1.8185E-12 # lat0 lon0 xBary yBary zBary JD0 -0.742756 47.901902 -0.115267 -0.012581 -0.982640 2456978.906378 # Heliocentric elements and errors Epoch: 2456978.5000 = 2014/11/17 Mean Anomaly: 274.93515 +/- 0.021 Argument of Peri: 286.23824 +/- 0.014 Long of Asc Node: 226.06634 +/- 0.000 Inclination: 20.02770 +/- 0.000 Eccentricity: 0.16697945 +/- 0.0001 Semi-Major Axis: 42.65522507 +/- 0.0022 Time of Perihelion: 2481022.3726 +/- 8.4 Perihelion: 35.53267889 +/- 0.0032 Aphelion: 49.77777125 +/- 0.0037 Period (y) 278.5907 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.88866907 +/- 0.0004 Ecliptic Y 32.15071169 +/- 0.0004 Ecliptic Z -0.54786110 +/- 0.0000 Ecliptic XDOT -0.00208755 +/- 0.0000 Ecliptic YDOT 0.00127927 +/- 0.0000 Ecliptic ZDOT -0.00087153 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.22652785 +/- 0.0004 Geocenter to KBO 42.24474876 +/- 0.0006 # Hcoef: 7.41
The following table shows the complete astrometric record for 15VV172. 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 (15VV172) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.40560 03 02 37.390 +16 27 11.42 23.6r 15VV172 568 C~2nwE 2014 11 17.51968 03 02 36.834 +16 27 08.61 23.8r 15VV172 568 C~2nwE 2014 11 19.31306 03 02 28.351 +16 26 25.54 23.7r 15VV172 568 C~2nwE 2014 11 23.41643 03 02 09.073 +16 24 47.81 23.9r 15VV172 568 C~2nwE 2015 08 11.59273 03 12 25.668 +16 48 40.28 23.9w 15VV172 568 C~2nwE 2015 09 06.62350 03 12 20.710 +16 45 47.36 15VV172 568 C~2nwE 2015 09 12.51312 03 12 11.153 +16 44 34.83 23.8w 15VV172 568 C~2nwE 2015 10 07.43992 03 11 00.259 +16 37 32.02 23.9w 15VV172 568 C~2nwE 2015 10 07.44703 03 11 00.222 +16 37 31.89 23.8w 15VV172 568 C~2nwE 2015 10 08.45165 03 10 56.467 +16 37 11.41 23.9w 15VV172 568 C~2nwE 2015 10 08.51072 03 10 56.240 +16 37 10.26 23.7w 15VV172 568 C~2nwE 2015 11 07.35903 03 08 44.688 +16 25 51.63 23.7r 15VV172 568 C~2nwE 2015 11 07.40112 03 08 44.478 +16 25 50.63 23.5r 15VV172 568 C~2nwE 2015 11 07.44330 03 08 44.272 +16 25 49.60 23.4r 15VV172 568 C~2nwE 2015 11 10.52886 03 08 29.404 +16 24 35.51 23.8w 15VV172 568 C~2nwE 2015 11 17.37547 03 07 56.411 +16 21 51.60 24.3w 15VV172 568 C~2nwE 2015 11 17.42215 03 07 56.186 +16 21 50.53 23.6w 15VV172 568 C~2nwE 2015 12 06.38432 03 06 28.926 +16 14 39.62 23.7w 15VV172 568 C~2nwE 2015 12 13.31874 03 06 00.247 +16 12 17.19 23.9w 15VV172 568 C~2nwE 2015 12 13.37723 03 06 00.013 +16 12 16.12 23.9w 15VV172 568 C~2nwE 2016 01 01.37186 03 04 56.361 +16 06 53.22 24.1w 15VV172 568 C~2nwE 2016 01 07.31862 03 04 41.915 +16 05 36.31 24.0w 15VV172 568 C~2nwE 2016 02 04.29505 03 04 16.612 +16 02 37.83 23.9w 15VV172 568 C~2nwE 2016 02 04.30157 03 04 16.619 +16 02 37.78 23.8w 15VV172 568 C~2nwE 2016 09 06.60560 03 17 36.038 +16 39 23.84 24.1w 15VV172 568 C~2nwE 2016 09 26.58845 03 16 52.675 +16 34 29.72 23.9w 15VV172 568 C~2nwE 2016 10 10.39070 03 16 05.282 +16 30 03.47 24.1w 15VV172 568 C~2nwE 2016 10 10.42589 03 16 05.145 +16 30 02.74 23.7w 15VV172 568 C~2nwE 2016 10 10.44903 03 16 05.045 +16 30 02.25 23.9w 15VV172 568 C~2nwF 2016 10 10.48430 03 16 04.913 +16 30 01.54 24.2w 15VV172 568 C~2nwF 2016 10 10.50790 03 16 04.816 +16 30 01.03 24.2w 15VV172 568 C~2nwF 2016 11 02.60285 03 14 23.512 +16 21 21.78 23.9w 15VV172 568 C~2nwF 2016 11 03.52184 03 14 19.151 +16 21 00.18 24.1w 15VV172 568 C~2nwF 2016 12 29.36878 03 10 18.576 +16 01 40.12 23.8w 15VV172 568 C~2nwF 2017 01 01.26608 03 10 10.337 +16 00 59.82 23.9w 15VV172 568 C~2nwF 2017 01 02.37586 03 10 07.340 +16 00 44.88 24.2w 15VV172 568 C~2nwF 2017 01 26.26424 03 09 28.998 +15 57 18.85 24.2w 15VV172 568 C~2nwF 2017 01 26.27054 03 09 28.998 +15 57 18.79 24.1w 15VV172 568 C~2nwF 2017 09 16.60944 03 22 37.924 +16 30 26.71 24.1w 15VV172 568 C~2nwF 2017 09 23.54857 03 22 21.618 +16 28 37.82 15VV172 568 C~2nwF 2024 11 01.39636 03 58 23.072 +15 12 49.91 23.9G 15VV172 G37 2024 11 01.44323 03 58 22.832 +15 12 48.86 15VV172 G37 2024 11 01.49127 03 58 22.622 +15 12 47.54 15VV172 G37
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 -0.06 0.00 -0.03
2 0.0003 0.00 -0.12 0.00 -0.07
3 0.0052 0.00 0.07 0.00 -0.01
4 0.0165 0.00 0.11 0.00 -0.03
5 0.7315 0.00 -0.01 0.00 -0.01
6 0.8028 0.00 -0.14 0.00 0.14
7 0.8189 0.00 -0.01 0.00 -0.04
8 0.8872 0.00 0.18 0.00 0.04
9 0.8872 0.00 0.03 0.00 0.06
10 0.8899 0.00 0.01 0.00 0.00
11 0.8901 0.00 0.01 0.00 0.05
12 0.9718 0.00 0.05 0.00 0.01
13 0.9719 0.00 -0.02 0.00 0.01
14 0.9720 0.00 -0.01 0.00 -0.01
15 0.9805 0.00 -0.02 0.00 0.05
16 0.9992 0.00 0.01 0.00 -0.02
17 0.9994 0.00 0.05 0.00 0.02
18 1.0513 0.00 0.01 0.00 0.14
19 1.0703 0.00 -0.02 0.00 -0.03
20 1.0704 0.00 0.02 0.00 0.05
21 1.1224 0.00 0.02 0.00 -0.07
22 1.1387 0.00 -0.01 0.00 -0.07
23 1.2153 0.00 -0.07 0.00 0.03
24 1.2153 0.00 0.00 0.00 -0.02
25 1.8048 0.00 -0.02 0.00 0.01
26 1.8595 0.00 -0.08 0.00 -0.03
27 1.8973 0.00 0.08 0.00 -0.03
28 1.8974 0.00 0.10 0.00 -0.04
29 1.8974 0.00 -0.03 0.00 -0.05
30 1.8975 0.00 0.08 0.00 -0.03
31 1.8976 0.00 0.02 0.00 -0.05
32 1.9608 0.00 -0.17 0.00 -0.10
33 1.9634 0.00 0.03 0.00 -0.04
34 2.1163 0.00 -0.00 0.00 0.01
35 2.1242 0.00 0.08 0.00 0.17
36 2.1272 0.00 0.04 0.00 -0.02
37 2.1926 0.00 -0.05 0.00 0.03
38 2.1926 0.00 0.00 0.00 -0.01
39 2.8315 0.00 -0.02 0.00 0.01
40 2.8505 0.00 0.05 0.00 0.02
41 9.9575 0.00 1.47 0.00 0.27
42 9.9577 0.00 1.15 0.00 0.22
43 9.9578 0.00 1.35 0.00 -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.
15VV172 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.894 42.911 42.877 ecceobj 0.162 0.163 0.161 incobj 19.956 19.956 19.956 qmin 35.038 34.982 35.102 qmax 50.522 50.547 50.589 amean 42.609 42.621 42.592 amin 42.223 42.249 42.208 amax 43.014 43.020 43.009 emean 0.156 0.157 0.154 emin 0.137 0.139 0.134 emax 0.176 0.175 0.176 imean 21.370 21.368 21.372 imin 20.702 20.721 20.691 imax 22.013 22.015 22.033 excite_mean 0.396 0.397 0.396 fracstop 1.000 1.000 1.000 cjmean 2.894 2.894 2.895 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 176.2 176.6 176.1 kozaiamp 180.0 179.9 179.9