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: 15KX173
# Created Tue Jan 21 02:10:35 2025
# Orbit generated from Bernstein formalism
# Fitting 36 observations of 36
# Arc: 3.24y
# First observation: 2014/05/30
# Last observation: 2017/08/26
Preliminary a, adot, b, bdot, g, gdot:
-0.000044 0.024088 0.000007 -0.005924 0.024449 0.000000
# Chi-squared of fit: 11.62 DOF: 66 RMS: 0.10
# Min/Max residuals: -0.22 0.32
# Exact a, adot, b, bdot, g, gdot:
1.497877E-05 2.398063E-02 -3.739366E-06 -5.906633E-03 2.447687E-02 -5.302409E-03
# Covariance matrix:
1.7826E-13 -1.9694E-13 -1.7563E-14 3.6031E-14 -6.0147E-14 -1.9070E-12
-1.9694E-13 3.8196E-13 4.3377E-14 -9.0298E-14 1.1095E-13 4.7495E-12
-1.7563E-14 4.3377E-14 1.2856E-13 -7.5819E-14 1.5945E-14 6.2097E-13
3.6031E-14 -9.0298E-14 -7.5819E-14 7.4453E-14 -2.9390E-14 -1.2912E-12
-6.0147E-14 1.1095E-13 1.5945E-14 -2.9390E-14 1.4997E-13 1.6304E-12
-1.9070E-12 4.7495E-12 6.2097E-13 -1.2912E-12 1.6304E-12 6.7949E-11
# lat0 lon0 xBary yBary zBary JD0
7.164561 -126.214112 -0.263659 0.122269 -0.972279 2456807.897968
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 313.66025 +/- 0.015
Argument of Peri: 223.09055 +/- 0.036
Long of Asc Node: 80.32024 +/- 0.001
Inclination: 15.54903 +/- 0.000
Eccentricity: 0.23618097 +/- 0.0003
Semi-Major Axis: 47.85684200 +/- 0.0081
Time of Perihelion: 2472366.0944 +/- 3.0
Perihelion: 36.55396645 +/- 0.0171
Aphelion: 59.15971754 +/- 0.0188
Period (y) 331.0734 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.31636739 +/- 0.0004
Ecliptic Y -33.64992329 +/- 0.0005
Ecliptic Z 5.09531334 +/- 0.0001
Ecliptic XDOT 0.00245789 +/- 0.0000
Ecliptic YDOT -0.00118008 +/- 0.0000
Ecliptic ZDOT -0.00072937 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.82780509 +/- 0.0005
Geocenter to KBO 40.85489789 +/- 0.0006
# Hcoef: 8.30
The following table shows the complete astrometric record for 15KX173. 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 (15KX173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.39719 15 32 52.129 -11 46 15.21 23.9r 15KX173 568 C~2lVH 2014 06 01.32413 15 32 43.129 -11 45 54.70 24.5r 15KX173 568 C~2lVH 2014 06 01.36716 15 32 42.931 -11 45 54.30 24.4r 15KX173 568 C~2lVH 2014 06 01.41010 15 32 42.718 -11 45 53.92 24.6r 15KX173 568 C~2lVH 2014 06 22.32150 15 31 13.816 -11 43 23.07 24.3r 15KX173 568 C~2lVH 2014 06 22.36436 15 31 13.622 -11 43 22.61 24.4r 15KX173 568 C~2lVH 2014 07 19.33752 15 29 56.877 -11 43 53.40 24.6r 15KX173 568 C~2lVH 2015 02 25.61666 15 43 14.555 -12 46 28.99 24.6r 15KX173 568 C~2lVH 2015 03 22.53917 15 42 46.777 -12 42 20.58 24.5r 15KX173 568 C~2lVH 2015 04 13.55184 15 41 38.662 -12 37 02.21 24.5r 15KX173 568 C~2lVH 2015 04 13.59295 15 41 38.501 -12 37 01.56 24.2r 15KX173 568 C~2lVH 2015 04 18.55633 15 41 18.729 -12 35 44.05 24.3r 15KX173 568 C~2lVH 2015 05 21.32236 15 38 46.545 -12 27 38.37 24.6r 15KX173 568 C~2lVH 2015 05 21.36353 15 38 46.322 -12 27 37.79 24.2r 15KX173 568 C~2lVH 2015 05 21.40471 15 38 46.129 -12 27 37.39 25.3r 15KX173 568 C~2lVH 2015 05 22.48134 15 38 40.862 -12 27 23.68 24.4r 15KX173 568 C~2lVH 2015 05 25.47177 15 38 26.344 -12 26 46.91 24.4r 15KX173 568 C~2lVH 2015 06 20.36123 15 36 29.903 -12 23 03.05 24.9r 15KX173 568 C~2lVH 2015 06 20.40209 15 36 29.733 -12 23 02.89 21.9r 15KX173 568 C~2lVH 2015 06 23.42230 15 36 17.968 -12 22 49.72 24.9r 15KX173 568 C~2lVH 2015 07 11.29546 15 35 20.146 -12 22 36.69 24.8r 15KX173 568 C~2lVH 2015 07 18.36550 15 35 03.714 -12 23 03.66 24.8r 15KX173 568 C~2lVH 2016 02 06.63721 15 48 02.615 -13 25 46.92 24.7w 15KX173 568 C~2lVH 2016 03 15.63093 15 48 11.803 -13 22 23.43 24.0w 15KX173 568 C~2lVH 2016 03 15.63618 15 48 11.798 -13 22 23.27 24.6w 15KX173 568 C~2lVH 2016 04 03.55069 15 47 26.045 -13 18 28.09 24.8w 15KX173 568 C~2lVH 2016 04 08.60024 15 47 09.093 -13 17 16.53 24.7w 15KX173 568 C~2lVH 2016 04 29.50143 15 45 43.142 -13 12 05.95 24.9w 15KX173 568 C~2lVH 2016 05 04.47406 15 45 19.949 -13 10 52.89 25.0w 15KX173 568 C~2lVH 2016 05 30.46201 15 43 13.412 -13 05 18.67 24.5w 15KX173 568 C~2lVH 2016 07 04.29818 15 40 49.184 -13 01 58.66 24.9w 15KX173 568 C~2lVH 2016 07 05.36646 15 40 45.827 -13 01 58.70 25.1w 15KX173 568 C~2lVH 2017 03 30.57261 15 52 58.154 -13 58 25.37 25.2w 15KX173 568 C~2lVH 2017 05 21.53337 15 49 18.541 -13 46 39.40 24.5w 15KX173 568 C~2lVH 2017 08 19.27489 15 45 01.774 -13 46 59.43 24.8w 15KX173 568 C~2lVH 2017 08 26.26334 15 45 09.033 -13 48 50.59 24.8w 15KX173 568 C~2lVH
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 0.11 0.00 -0.02
2 0.0053 -133.22 -0.07 -11.83 0.01
3 0.0054 -136.14 0.02 -12.14 -0.01
4 0.0055 -139.27 -0.10 -12.52 -0.11
5 0.0628 -1442.81 0.27 -180.54 -0.04
6 0.0629 -1445.68 -0.22 -180.78 0.15
7 0.1367 -2531.97 -0.11 -483.48 -0.04
8 0.7426 9724.58 0.01 -1365.24 0.20
9 0.8108 9270.80 0.04 -1217.17 -0.17
10 0.8711 8225.38 -0.08 -1138.21 -0.05
11 0.8712 8222.93 -0.07 -1138.12 -0.04
12 0.8848 7922.95 -0.22 -1129.94 -0.18
13 0.9745 5640.22 0.32 -1178.20 0.05
14 0.9746 5636.91 0.03 -1178.40 0.04
15 0.9747 5634.07 0.22 -1178.68 -0.04
16 0.9776 5555.80 0.01 -1183.46 -0.03
17 0.9858 5340.31 0.01 -1197.68 0.07
18 1.0567 3629.05 0.00 -1382.59 0.06
19 1.0568 3626.59 -0.04 -1383.03 0.00
20 1.0651 3455.96 -0.03 -1411.07 0.07
21 1.1140 2629.73 0.06 -1599.55 0.24
22 1.1334 2402.28 -0.02 -1683.04 0.12
23 1.6899 14376.88 -0.00 -2703.57 0.05
24 1.7939 14461.83 -0.06 -2474.49 -0.15
25 1.7939 14461.72 -0.02 -2474.35 -0.03
26 1.8457 13754.67 -0.02 -2395.89 0.00
27 1.8596 13496.29 -0.06 -2382.18 -0.02
28 1.9168 12198.45 0.04 -2364.87 -0.04
29 1.9304 11850.81 0.05 -2371.01 -0.12
30 2.0015 9969.70 -0.03 -2469.72 -0.08
31 2.0969 7869.23 -0.09 -2763.22 0.03
32 2.0998 7821.46 0.03 -2774.68 -0.05
33 2.8342 19044.36 0.09 -3655.98 0.06
34 2.9764 15745.53 0.04 -3678.02 0.05
35 3.2221 12089.96 -0.11 -4545.18 -0.07
36 3.2412 12218.85 0.02 -4629.49 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.
15KX173 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.612 47.632 47.592 ecceobj 0.238 0.238 0.237 incobj 15.555 15.556 15.555 qmin 35.693 35.510 35.185 qmax 60.820 60.929 61.276 amean 47.796 47.797 47.795 amin 47.193 47.139 47.185 amax 48.542 48.531 48.535 emean 0.234 0.234 0.240 emin 0.215 0.209 0.218 emax 0.254 0.257 0.265 imean 14.250 14.239 13.572 imin 13.790 13.570 12.789 imax 14.789 14.921 14.320 excite_mean 0.339 0.339 0.336 fracstop 1.000 1.000 1.000 cjmean 3.005 3.005 3.008 libcent 0 180.1 180.1 179.0 libamp 0 152.3 154.7 148.5 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 197.7 182.8 194.3 kozaiamp 180.0 179.9 180.0