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: 15VO165 # Created Sun Dec 22 02:10:33 2024 # Orbit generated from Bernstein formalism # Fitting 32 observations of 32 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000240 0.033565 -0.000042 0.005806 0.030112 0.000000 # Chi-squared of fit: 3.03 DOF: 58 RMS: 0.05 # Min/Max residuals: -0.09 0.17 # Exact a, adot, b, bdot, g, gdot: 1.776221E-05 3.334661E-02 3.308237E-06 5.777508E-03 3.004604E-02 -5.793765E-03 # Covariance matrix: 3.2329E-13 -4.0666E-13 2.6231E-14 -5.3788E-14 -1.5685E-13 -3.3866E-12 -4.0666E-13 7.1041E-13 -5.5405E-14 1.1406E-13 2.9044E-13 7.1742E-12 2.6231E-14 -5.5405E-14 1.8337E-13 -1.2091E-13 -2.4248E-14 -6.4825E-13 -5.3788E-14 1.1406E-13 -1.2091E-13 1.1368E-13 4.8686E-14 1.3381E-12 -1.5685E-13 2.9044E-13 -2.4248E-14 4.8686E-14 2.3836E-13 3.0823E-12 -3.3866E-12 7.1742E-12 -6.4825E-13 1.3381E-12 3.0823E-12 8.4103E-11 # lat0 lon0 xBary yBary zBary JD0 -1.940246 47.496251 -0.122133 -0.033087 -0.981334 2456978.901288 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 318.45709 +/- 0.020 Argument of Peri: 50.36154 +/- 0.043 Long of Asc Node: 58.44405 +/- 0.000 Inclination: 10.01513 +/- 0.001 Eccentricity: 0.21304485 +/- 0.0003 Semi-Major Axis: 39.56845419 +/- 0.0050 Time of Perihelion: 2467461.4896 +/- 4.6 Perihelion: 31.13859875 +/- 0.0110 Aphelion: 47.99830963 +/- 0.0119 Period (y) 248.9040 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 23.04415395 +/- 0.0004 Ecliptic Y 25.33060122 +/- 0.0004 Ecliptic Z -1.12675897 +/- 0.0000 Ecliptic XDOT -0.00258888 +/- 0.0000 Ecliptic YDOT 0.00167218 +/- 0.0000 Ecliptic ZDOT 0.00054413 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 34.26283665 +/- 0.0004 Geocenter to KBO 33.28225725 +/- 0.0005 # Hcoef: 8.62
The following table shows the complete astrometric record for 15VO165. 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 (15VO165) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.40051 03 02 23.345 +15 11 24.48 23.9r 15VO165 568 C~2lVb 2014 11 17.51464 03 02 22.666 +15 11 22.10 23.9r 15VO165 568 C~2lVb 2014 11 19.30670 03 02 12.125 +15 10 44.97 23.9r 15VO165 568 C~2lVb 2014 11 23.41007 03 01 48.187 +15 09 21.52 24.2r 15VO165 568 C~2lVb 2015 08 11.59273 03 15 09.263 +16 21 28.54 24.1w 15VO165 568 C~2lVb 2015 09 12.51312 03 14 56.749 +16 20 52.75 24.1w 15VO165 568 C~2lVb 2015 10 07.43992 03 13 30.983 +16 15 42.96 23.7w 15VO165 568 C~2lVb 2015 10 07.44703 03 13 30.944 +16 15 42.87 24.0w 15VO165 568 C~2lVb 2015 10 08.45165 03 13 26.324 +16 15 26.28 24.2w 15VO165 568 C~2lVb 2015 10 08.51072 03 13 26.054 +16 15 25.30 24.2w 15VO165 568 C~2lVb 2015 11 07.35903 03 10 42.786 +16 05 47.29 23.9r 15VO165 568 C~2lVb 2015 11 07.40112 03 10 42.530 +16 05 46.33 24.0r 15VO165 568 C~2lVb 2015 11 07.44330 03 10 42.275 +16 05 45.44 24.0r 15VO165 568 C~2lVb 2015 11 10.52886 03 10 23.697 +16 04 41.23 24.0w 15VO165 568 C~2lVb 2015 11 17.37547 03 09 42.459 +16 02 19.67 24.1w 15VO165 568 C~2lVb 2015 11 17.42215 03 09 42.175 +16 02 18.72 24.1w 15VO165 568 C~2lVb 2015 12 06.38432 03 07 52.977 +15 56 17.70 24.2w 15VO165 568 C~2lVb 2015 12 13.31874 03 07 17.110 +15 54 25.58 24.3w 15VO165 568 C~2lVb 2016 01 01.37186 03 05 57.446 +15 50 43.40 24.2w 15VO165 568 C~2lVb 2016 01 07.31862 03 05 39.551 +15 50 04.59 24.2w 15VO165 568 C~2lVb 2016 02 04.29505 03 05 09.422 +15 50 52.52 24.4w 15VO165 568 C~2lVb 2016 02 04.30157 03 05 09.433 +15 50 52.45 24.2w 15VO165 568 C~2lVb 2016 02 10.28486 03 05 15.237 +15 51 53.54 24.3w 15VO165 568 C~2lVb 2016 09 07.62568 03 22 26.389 +17 10 16.65 15VO165 568 C~2lVb 2016 09 26.58416 03 21 37.358 +17 07 38.56 24.1w 15VO165 568 C~2lVb 2016 10 09.54522 03 20 43.610 +17 04 39.69 24.2w 15VO165 568 C~2lVb 2016 10 09.61729 03 20 43.261 +17 04 38.50 24.2w 15VO165 568 C~2lVb 2017 01 02.39822 03 13 09.825 +16 40 49.09 15VO165 568 C~2lVb 2017 01 02.41556 03 13 09.758 +16 40 49.01 24.3w 15VO165 568 C~2lVb 2017 01 26.32220 03 12 21.437 +16 39 49.63 24.3w 15VO165 568 C~2lVb 2017 01 26.32908 03 12 21.430 +16 39 49.64 24.3w 15VO165 568 C~2lVb 2017 12 16.36856 03 21 52.061 +17 34 07.40 23.4w 15VO165 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 -0.04 0.00 -0.06
2 0.0003 -10.10 0.05 0.45 -0.07
3 0.0052 -167.00 0.05 7.30 -0.01
4 0.0165 -523.09 -0.06 23.82 -0.03
5 0.7315 11794.62 -0.07 1048.10 0.10
6 0.8189 11610.85 -0.07 1061.13 -0.02
7 0.8872 10334.54 0.09 1089.47 -0.02
8 0.8872 10333.97 0.02 1089.53 0.02
9 0.8899 10265.25 -0.08 1091.22 0.05
10 0.8901 10261.24 0.06 1091.31 0.01
11 0.9718 7835.56 0.07 1163.30 0.09
12 0.9719 7831.75 0.05 1163.36 -0.00
13 0.9721 7827.96 0.08 1163.50 -0.03
14 0.9805 7552.42 -0.07 1173.73 0.09
15 0.9992 6941.07 -0.03 1197.77 -0.02
16 0.9994 6936.87 -0.01 1197.96 -0.03
17 1.0513 5321.91 -0.05 1277.50 0.05
18 1.0703 4793.26 -0.03 1310.65 -0.05
19 1.1224 3626.45 0.05 1411.52 0.03
20 1.1387 3367.41 -0.05 1445.12 -0.06
21 1.2153 2962.51 0.01 1610.81 0.17
22 1.2153 2962.64 0.08 1610.70 0.02
23 1.2317 3059.99 -0.03 1646.38 0.03
24 1.8076 18655.87 0.03 2252.34 -0.01
25 1.8595 17930.34 0.00 2278.79 -0.09
26 1.8950 17133.92 0.03 2303.28 -0.02
27 1.8952 17128.75 -0.03 2303.41 -0.05
28 2.1273 10442.31 0.00 2624.40 -0.07
29 2.1274 10441.36 -0.09 2624.58 0.02
30 2.1928 9754.65 0.03 2752.37 -0.05
31 2.1928 9754.55 0.00 2752.40 -0.05
32 3.0800 18545.87 0.01 3767.51 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.
15VO165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.825 39.835 39.816 ecceobj 0.213 0.213 0.212 incobj 9.994 9.994 9.994 qmin 28.860 28.924 28.984 qmax 50.565 50.443 50.451 amean 39.455 39.455 39.455 amin 39.045 39.046 39.053 amax 39.933 39.930 39.935 emean 0.229 0.229 0.229 emin 0.198 0.199 0.198 emax 0.266 0.265 0.264 imean 7.159 7.281 7.180 imin 3.760 4.136 4.719 imax 9.074 9.074 9.074 excite_mean 0.263 0.263 0.262 fracstop 1.000 1.000 1.000 cjmean 2.973 2.973 2.974 libcent 0 181.1 180.3 180.7 libamp 0 62.3 65.2 58.2 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 138.5 143.4 132.4 kozaiamp 179.9 180.0 180.0