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: 15VX184 # Created Sun Nov 24 02:10:34 2024 # Orbit generated from Bernstein formalism # Fitting 19 observations of 20 # Arc: 2.25y # First observation: 2015/11/07 # Last observation: 2018/02/06 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.013345 0.000033 0.008390 0.018318 0.000000 # Chi-squared of fit: 22.16 DOF: 32 RMS: 0.19 # Min/Max residuals: -0.37 0.47 # Exact a, adot, b, bdot, g, gdot: 1.103046E-05 1.333223E-02 8.809722E-06 8.388484E-03 1.803286E-02 -4.784765E-03 # Covariance matrix: 3.9205E-13 -4.1298E-13 4.7293E-14 -1.4429E-13 -2.3124E-13 -7.6360E-12 -4.1298E-13 8.6392E-13 -1.3898E-13 4.3355E-13 5.2601E-13 2.3671E-11 4.7293E-14 -1.3898E-13 3.2861E-13 -2.6430E-13 -1.1079E-13 -4.5675E-12 -1.4429E-13 4.3355E-13 -2.6430E-13 4.0658E-13 3.3257E-13 1.4255E-11 -2.3124E-13 5.2601E-13 -1.1079E-13 3.3257E-13 6.2899E-13 1.7187E-11 -7.6360E-12 2.3671E-11 -4.5675E-12 1.4255E-11 1.7187E-11 7.7875E-10 # lat0 lon0 xBary yBary zBary JD0 10.885649 27.803140 -0.279956 0.180381 -0.937090 2457333.726999 # Heliocentric elements and errors Epoch: 2457330.5000 = 2015/11/04 Mean Anomaly: 319.73117 +/- 0.092 Argument of Peri: 94.65366 +/- 0.088 Long of Asc Node: 11.61010 +/- 0.001 Inclination: 33.66937 +/- 0.001 Eccentricity: 0.34147333 +/- 0.0019 Semi-Major Axis: 69.44362288 +/- 0.1025 Time of Perihelion: 2480974.0956 +/- 13.8 Perihelion: 45.73047752 +/- 0.1466 Aphelion: 93.15676824 +/- 0.1893 Period (y) 578.7044 +/- 1.28 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 48.87927801 +/- 0.0021 Ecliptic Y 26.09263616 +/- 0.0011 Ecliptic Z 10.47299338 +/- 0.0005 Ecliptic XDOT -0.00178933 +/- 0.0000 Ecliptic YDOT 0.00133888 +/- 0.0000 Ecliptic ZDOT 0.00111352 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 56.38876724 +/- 0.0019 Geocenter to KBO 55.45432452 +/- 0.0024 # Hcoef: 6.15
The following table shows the complete astrometric record for 15VX184. 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 (15VX184) followed by the observatory code and reference code for the source of the astrometry.
2015 11 07.22621 01 26 40.510 +20 49 18.94 23.5r 15VX184 568 C~3wqO 2015 11 07.43495 01 26 39.750 +20 49 14.93 23.5r 15VX184 568 C~3wqO 2015 12 09.15348 01 25 05.621 +20 39 12.12 15VX184 304 C~3wqO 2016 09 27.30652 01 31 30.632 +21 43 52.34 15VX184 304 C~3wqO 2016 09 27.32771 01 31 30.549 +21 43 52.02 15VX184 304 C~3wqO 2016 09 28.23851 01 31 27.219 +21 43 42.98 15VX184 304 C~3wqO 2016 10 01.25708 01 31 15.964 +21 43 10.54 15VX184 304 C~3wqO 2016 10 01.31581 01 31 15.752 +21 43 09.81 15VX184 304 C~3wqO 2016 11 02.12861 01 29 12.607 +21 34 48.34 15VX184 304 C~3wqO 2016 11 03.11572 01 29 08.908 +21 34 29.50 15VX184 304 C~3wqO 2016 12 02.20776 01 27 34.718 +21 24 59.87 15VX184 G37 C~3wqO 2016 12 02.29052 01 27 34.458 +21 24 58.17 15VX184 G37 C~3wqO 2017 09 21.22221 01 34 13.454 +22 28 57.05 23.6r 15VX184 G37 C~3wqO 2017 09 21.22945 01 34 13.430 +22 28 56.94 23.5r 15VX184 G37 C~3wqO 2017 09 21.26870 01 34 13.297 +22 28 56.92 23.6r 15VX184 G37 C~3wqO 2017 09 21.27599 01 34 13.271 +22 28 56.82 23.5r 15VX184 G37 C~3wqO 2017 09 22.21906 01 34 09.962 +22 28 50.12 23.7r 15VX184 G37 C~3wqO 2018 02 06.10954 01 29 26.902 +21 58 14.05 15VX184 G37 C~3wqO 2018 02 06.15773 01 29 27.013 +21 58 14.33 15VX184 G37 C~3wqO 2018 02 06.16537 01 29 27.032 +21 58 14.28 15VX184 G37 C~3wqO
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 0.14 0.00 -0.30
2 0.0006 -11.38 0.21 0.30 -0.31
3 0.0874 -1461.73 0.06 -59.31 -0.37
4 0.8900 4984.39 0.01 1525.34 0.11
5 0.8901 4983.20 -0.09 1525.47 0.04
6 0.8926 4936.71 0.06 1534.21 0.15
7 0.9008 4778.90 -0.26 1562.02 0.47
8 0.9010 4775.89 -0.13 1562.44 0.35
9 0.9881 2994.86 -0.21 1734.04 0.34
10 0.9908 2939.94 -0.15 1735.79 0.30
11 1.0704 1507.50 ( 0.59) 1699.05 ( -0.06)
12 1.0707 1503.50 -0.02 1698.83 0.04
13 1.8727 8086.05 0.00 3211.70 -0.18
14 1.8727 8085.70 0.00 3211.72 -0.25
15 1.8728 8083.97 0.16 3212.37 -0.05
16 1.8728 8083.60 0.14 3212.41 -0.09
17 1.8754 8038.39 0.01 3222.92 0.05
18 2.2502 3703.68 -0.16 2964.77 -0.11
19 2.2503 3705.22 0.10 2964.46 -0.05
20 2.2503 3705.45 0.13 2964.31 -0.14
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.
15VX184 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 70.284 70.579 69.996 ecceobj 0.344 0.349 0.338 incobj 33.474 33.473 33.476 qmin 45.122 44.967 45.240 qmax 95.317 96.152 94.460 amean 69.631 69.915 69.387 amin 68.817 69.134 68.527 amax 70.618 70.916 70.458 emean 0.333 0.340 0.322 emin 0.317 0.326 0.303 emax 0.350 0.356 0.345 imean 34.003 33.967 34.208 imin 33.598 33.600 33.589 imax 34.481 34.345 34.722 excite_mean 0.651 0.654 0.648 fracstop 1.000 1.000 1.000 cjmean 2.810 2.808 2.811 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 190.3 183.8 198.0 kozaiamp 96.8 90.5 108.9