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: 15VX172 # Created Thu Apr 3 01:10:46 2025 # Orbit generated from Bernstein formalism # Fitting 40 observations of 40 # Arc: 3.08y # First observation: 2014/11/17 # Last observation: 2017/12/16 Preliminary a, adot, b, bdot, g, gdot: -0.000007 0.023253 -0.000001 0.000664 0.023878 0.000000 # Chi-squared of fit: 13.46 DOF: 74 RMS: 0.10 # Min/Max residuals: -0.19 0.23 # Exact a, adot, b, bdot, g, gdot: 1.633402E-05 2.340262E-02 2.168763E-07 6.689126E-04 2.404129E-02 4.916921E-04 # Covariance matrix: 2.4860E-13 -2.8574E-13 3.0554E-15 -5.9211E-15 -1.2949E-13 -3.1340E-12 -2.8574E-13 4.6853E-13 -6.0628E-15 1.1990E-14 2.3280E-13 6.3196E-12 3.0554E-15 -6.0628E-15 1.4572E-13 -8.3906E-14 -3.6504E-15 -9.4544E-14 -5.9211E-15 1.1990E-14 -8.3906E-14 6.5007E-14 6.3945E-15 1.8868E-13 -1.2949E-13 2.3280E-13 -3.6504E-15 6.3945E-15 2.2285E-13 3.4594E-12 -3.1340E-12 6.3196E-12 -9.4544E-14 1.8868E-13 3.4594E-12 9.9263E-11 # lat0 lon0 xBary yBary zBary JD0 -1.325737 47.893983 -0.113147 -0.022597 -0.982725 2456978.777218 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 41.47451 +/- 0.514 Argument of Peri: 277.72402 +/- 0.563 Long of Asc Node: 86.35160 +/- 0.010 Inclination: 2.08911 +/- 0.001 Eccentricity: 0.03137622 +/- 0.0003 Semi-Major Axis: 43.58158987 +/- 0.0025 Time of Perihelion: 2444863.6320 +/- 150.1 Perihelion: 42.21416411 +/- 0.0137 Aphelion: 44.94901563 +/- 0.0137 Period (y) 287.7152 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.45423044 +/- 0.0005 Ecliptic Y 31.65805896 +/- 0.0006 Ecliptic Z -0.96236595 +/- 0.0000 Ecliptic XDOT -0.00194282 +/- 0.0000 Ecliptic YDOT 0.00182485 +/- 0.0000 Ecliptic ZDOT 0.00007496 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.57701346 +/- 0.0006 Geocenter to KBO 41.59510277 +/- 0.0008 # Hcoef: 8.76
The following table shows the complete astrometric record for 15VX172. 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 (15VX172) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.27644 03 03 15.942 +15 53 27.31 25.0r 15VX172 568 C~2nwF 2014 11 17.38513 03 03 15.421 +15 53 25.12 24.8r 15VX172 568 C~2nwF 2014 11 17.49897 03 03 14.874 +15 53 22.92 25.5r 15VX172 568 C~2nwF 2014 11 19.28749 03 03 06.262 +15 52 48.28 25.5r 15VX172 568 C~2nwF 2014 11 23.39103 03 02 46.709 +15 51 30.26 24.7r 15VX172 568 C~2nwF 2015 08 11.59273 03 13 07.871 +16 37 07.79 25.6w 15VX172 568 C~2nwF 2015 09 06.62350 03 13 03.089 +16 36 11.20 25.3w 15VX172 568 C~2nwF 2015 09 12.51312 03 12 53.437 +16 35 25.15 25.4w 15VX172 568 C~2nwF 2015 10 07.43992 03 11 41.848 +16 30 15.54 24.7w 15VX172 568 C~2nwF 2015 10 07.44703 03 11 41.815 +16 30 15.31 24.7w 15VX172 568 C~2nwF 2015 10 08.45165 03 11 38.017 +16 29 59.49 25.4w 15VX172 568 C~2nwF 2015 10 08.51072 03 11 37.775 +16 29 58.42 25.1w 15VX172 568 C~2nwF 2015 11 07.35903 03 09 24.681 +16 20 58.17 25.0r 15VX172 568 C~2nwF 2015 11 07.40112 03 09 24.473 +16 20 57.32 25.1r 15VX172 568 C~2nwF 2015 11 07.44330 03 09 24.254 +16 20 56.21 25.1r 15VX172 568 C~2nwF 2015 11 10.52886 03 09 09.191 +16 19 56.67 25.2w 15VX172 568 C~2nwF 2015 11 17.37547 03 08 35.783 +16 17 44.93 25.3w 15VX172 568 C~2nwF 2015 11 17.42215 03 08 35.552 +16 17 44.15 25.3w 15VX172 568 C~2nwF 2015 12 06.38432 03 07 07.118 +16 12 02.50 25.3w 15VX172 568 C~2nwF 2015 12 13.37723 03 06 37.771 +16 10 12.19 25.5w 15VX172 568 C~2nwF 2016 01 01.37186 03 05 33.099 +16 06 19.66 25.7w 15VX172 568 C~2nwF 2016 01 07.31862 03 05 18.391 +16 05 31.25 25.4w 15VX172 568 C~2nwF 2016 02 04.29505 03 04 52.269 +16 04 45.54 24.8w 15VX172 568 C~2nwF 2016 02 04.30157 03 04 52.252 +16 04 45.23 25.4w 15VX172 568 C~2nwF 2016 02 10.28486 03 04 56.459 +16 05 16.31 25.2w 15VX172 568 C~2nwF 2016 09 06.60560 03 18 18.300 +16 59 02.65 15VX172 568 C~2nwF 2016 09 26.59656 03 17 34.581 +16 55 51.69 25.0w 15VX172 568 C~2nwF 2016 10 10.40230 03 16 46.720 +16 52 35.88 25.2w 15VX172 568 C~2nwF 2016 10 10.46065 03 16 46.488 +16 52 35.08 25.4w 15VX172 568 C~2nwF 2016 10 27.49679 03 15 32.901 +16 47 43.07 25.4w 15VX172 568 C~2nwF 2016 11 02.60285 03 15 03.969 +16 45 50.05 25.3w 15VX172 568 C~2nwF 2016 11 03.52184 03 14 59.544 +16 45 32.97 25.4w 15VX172 568 C~2nwF 2016 12 24.29598 03 11 12.192 +16 31 24.05 25.2w 15VX172 568 C~2nwF 2016 12 29.36878 03 10 55.949 +16 30 28.32 25.4w 15VX172 568 C~2nwF 2017 01 01.26608 03 10 47.576 +16 30 00.31 25.2w 15VX172 568 C~2nwF 2017 01 02.37586 03 10 44.540 +16 29 50.17 25.2w 15VX172 568 C~2nwF 2017 01 02.39822 03 10 44.470 +16 29 49.77 25.5w 15VX172 568 C~2nwF 2017 01 26.27054 03 10 05.327 +16 28 03.14 25.5w 15VX172 568 C~2nwF 2017 09 17.60038 03 23 16.803 +17 20 04.87 15VX172 568 C~2nwF 2017 12 16.39181 03 17 00.588 +16 56 25.24 24.1w 15VX172 568 C~2nwF
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 -0.19 0.00 0.05
2 0.0003 -7.83 -0.05 -0.02 -0.09
3 0.0006 -16.02 0.12 0.06 -0.12
4 0.0055 -145.00 -0.09 1.24 -0.08
5 0.0167 -437.69 0.19 4.63 0.07
6 0.7319 8920.75 -0.15 207.37 0.00
7 0.8031 8839.29 0.16 171.05 0.10
8 0.8193 8693.03 -0.12 163.54 -0.00
9 0.8875 7616.70 0.18 139.66 0.11
10 0.8875 7616.18 0.07 139.57 0.02
11 0.8903 7559.23 0.02 138.93 0.04
12 0.8904 7555.59 -0.19 138.83 -0.05
13 0.9722 5563.88 0.10 133.25 0.13
14 0.9723 5560.76 0.09 133.24 0.09
15 0.9724 5557.43 -0.13 133.02 -0.16
16 0.9808 5332.43 -0.19 134.30 0.04
17 0.9996 4833.48 -0.02 137.71 -0.01
18 0.9997 4830.06 0.01 137.86 0.09
19 1.0516 3511.08 0.15 155.46 -0.02
20 1.0708 3074.15 -0.03 164.80 -0.01
21 1.1228 2114.10 -0.04 196.54 -0.01
22 1.1391 1896.96 0.07 208.24 0.19
23 1.2157 1522.41 0.23 267.91 0.10
24 1.2157 1522.09 -0.12 267.68 -0.15
25 1.2321 1588.94 -0.11 280.86 -0.17
26 1.8051 13581.26 0.02 305.93 -0.05
27 1.8599 12923.20 -0.02 284.46 -0.03
28 1.8977 12206.36 0.02 274.52 -0.02
29 1.8978 12202.92 0.05 274.62 0.08
30 1.9445 11103.33 -0.10 269.61 0.03
31 1.9612 10671.53 0.05 269.86 -0.12
32 1.9637 10605.54 0.02 270.12 -0.02
33 2.1027 7223.61 0.21 319.96 -0.08
34 2.1166 6983.34 -0.07 328.91 0.02
35 2.1245 6859.68 0.02 334.25 0.11
36 2.1276 6814.85 0.10 336.21 -0.02
37 2.1276 6813.77 -0.07 336.09 -0.18
38 2.1930 6242.25 -0.12 384.82 0.11
39 2.8346 18066.52 0.07 430.01 -0.03
40 3.0804 12459.28 -0.14 444.27 0.04
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.
15VX172 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.923 43.931 43.914 ecceobj 0.040 0.040 0.039 incobj 2.088 2.088 2.088 qmin 41.053 41.058 41.088 qmax 46.268 46.330 46.240 amean 43.585 43.594 43.577 amin 43.246 43.254 43.244 amax 43.930 43.943 43.923 emean 0.038 0.038 0.037 emin 0.019 0.019 0.018 emax 0.053 0.054 0.053 imean 0.781 0.780 0.783 imin 0.351 0.349 0.353 imax 1.134 1.134 1.135 excite_mean 0.041 0.041 0.040 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 179.6 179.8 180.0 kozaiamp 180.0 180.0 180.0