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: 15KE173
# Created Sun Dec 22 02:10:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 7.91y
# First observation: 2014/05/30
# Last observation: 2022/04/26
# Chi-squared of fit: 10.91 DOF: 66 RMS: 0.10
# Min/Max residuals: -0.21 0.38
# Exact a, adot, b, bdot, g, gdot:
1.382595E-05 2.064866E-02 -6.869084E-07 -1.621308E-03 2.358577E-02 -5.118528E-03
# Covariance matrix:
1.4579E-13 -1.1696E-13 -5.6514E-15 7.2110E-15 -1.0428E-14 -5.3743E-13
-1.1696E-13 1.4935E-13 6.6399E-15 -9.7479E-15 -2.7357E-14 7.2979E-13
-5.6514E-15 6.6399E-15 6.8681E-14 -1.9129E-14 2.5155E-15 3.7077E-14
7.2110E-15 -9.7479E-15 -1.9129E-14 1.3194E-14 1.0450E-15 -5.2374E-14
-1.0428E-14 -2.7357E-14 2.5155E-15 1.0450E-15 1.3675E-13 -8.8854E-14
-5.3743E-13 7.2979E-13 3.7077E-14 -5.2374E-14 -8.8854E-14 3.9164E-12
# lat0 lon0 xBary yBary zBary JD0
6.875640 -126.166674 -0.262847 0.117391 -0.973100 2456807.897968
# Heliocentric elements and errors
Epoch: 2456808.5000 = 2014/05/31
Mean Anomaly: 259.03899 +/- 0.017
Argument of Peri: 250.99521 +/- 0.010
Long of Asc Node: 109.79099 +/- 0.002
Inclination: 8.12665 +/- 0.000
Eccentricity: 0.25268389 +/- 0.0001
Semi-Major Axis: 39.30530503 +/- 0.0022
Time of Perihelion: 2482050.6504 +/- 6.8
Perihelion: 29.37348774 +/- 0.0037
Aphelion: 49.23712231 +/- 0.0043
Period (y) 246.4251 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -25.20850607 +/- 0.0004
Ecliptic Y -34.92719207 +/- 0.0005
Ecliptic Z 5.07575077 +/- 0.0001
Ecliptic XDOT 0.00226460 +/- 0.0000
Ecliptic YDOT -0.00096012 +/- 0.0000
Ecliptic ZDOT -0.00025785 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.37225965 +/- 0.0005
Geocenter to KBO 42.39863223 +/- 0.0007
# Hcoef: 7.99
The following table shows the complete astrometric record for 15KE173. 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 (15KE173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.39719 15 32 46.328 -12 03 45.60 24.6r 15KE173 568 C~2lVE 2014 05 31.43190 15 32 41.592 -12 03 31.67 24.5r 15KE173 568 C~2lVE 2014 06 01.32413 15 32 37.556 -12 03 20.59 24.4r 15KE173 568 C~2lVE 2014 06 01.36716 15 32 37.357 -12 03 20.16 24.2r 15KE173 568 C~2lVE 2014 06 01.41010 15 32 37.169 -12 03 19.76 23.6r 15KE173 568 C~2lVE 2014 06 22.32150 15 31 10.262 -11 59 56.67 24.1r 15KE173 568 C~2lVE 2014 06 22.36436 15 31 10.107 -11 59 56.58 24.0r 15KE173 568 C~2lVE 2014 07 19.33752 15 29 54.635 -11 59 09.47 24.4r 15KE173 568 C~2lVE 2015 02 25.61666 15 42 32.148 -12 50 09.25 24.4r 15KE173 568 C~2lVE 2015 03 19.62043 15 42 09.778 -12 45 50.09 24.0r 15KE173 568 C~2lVE 2015 03 22.53917 15 42 03.609 -12 45 07.33 24.1r 15KE173 568 C~2lVE 2015 04 13.55184 15 40 56.473 -12 39 04.41 24.5r 15KE173 568 C~2lVE 2015 04 13.59295 15 40 56.314 -12 39 03.65 24.1r 15KE173 568 C~2lVE 2015 04 18.55634 15 40 36.942 -12 37 36.11 24.3r 15KE173 568 C~2lVE 2015 05 21.32236 15 38 08.334 -12 28 22.32 24.4r 15KE173 568 C~2lVE 2015 05 21.36353 15 38 08.131 -12 28 21.83 24.0r 15KE173 568 C~2lVE 2015 05 21.40471 15 38 07.925 -12 28 21.29 24.4r 15KE173 568 C~2lVE 2015 05 22.48134 15 38 02.827 -12 28 05.14 24.4r 15KE173 568 C~2lVE 2015 05 25.47177 15 37 48.670 -12 27 21.90 24.0r 15KE173 568 C~2lVE 2015 06 20.36123 15 35 55.178 -12 22 38.27 24.1r 15KE173 568 C~2lVE 2015 06 20.40209 15 35 55.017 -12 22 38.02 24.1r 15KE173 568 C~2lVE 2015 06 23.42230 15 35 43.531 -12 22 17.51 24.5r 15KE173 568 C~2lVE 2015 07 11.29546 15 34 46.995 -12 21 18.83 24.6r 15KE173 568 C~2lVE 2016 02 06.63317 15 46 50.850 -13 13 32.88 24.6w 15KE173 568 C~2lVE 2016 02 12.61871 15 47 00.893 -13 13 14.29 24.8w 15KE173 568 C~2lVE 2016 03 15.62688 15 46 56.481 -13 08 27.97 24.8w 15KE173 568 C~2lVE 2016 04 03.55069 15 46 10.883 -13 03 46.24 24.6w 15KE173 568 C~2lVE 2016 04 08.60024 15 45 54.169 -13 02 22.49 23.9w 15KE173 568 C~2lVE 2016 04 29.50143 15 44 29.942 -12 56 23.84 24.6w 15KE173 568 C~2lVE 2016 05 04.47406 15 44 07.303 -12 54 59.56 24.7w 15KE173 568 C~2lVE 2016 05 30.46201 15 42 04.044 -12 48 27.60 24.2w 15KE173 568 C~2lVE 2016 07 04.29818 15 39 43.734 -12 43 48.91 24.8w 15KE173 568 C~2lVE 2016 07 05.36646 15 39 40.454 -12 43 46.33 25.0w 15KE173 568 C~2lVE 2017 03 30.57261 15 51 09.376 -13 26 48.70 24.4w 15KE173 568 C~2lVE 2022 04 26.371650 16 14 29.144 -15 08 00.59 24.4G 15KE173 G37 C~5ZbU 2022 04 26.420220 16 14 28.943 -15 07 59.64 15KE173 G37 C~5ZbU
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 -0.02 0.00 -0.08
2 0.0028 0.00 -0.13 0.00 0.38
3 0.0053 0.00 0.02 0.00 0.07
4 0.0054 0.00 0.01 0.00 -0.05
5 0.0055 0.00 0.16 0.00 -0.19
6 0.0628 0.00 0.02 0.00 0.08
7 0.0629 0.00 0.11 0.00 -0.11
8 0.1367 0.00 0.02 0.00 -0.05
9 0.7426 0.00 -0.13 0.00 -0.07
10 0.8028 0.00 -0.08 0.00 0.13
11 0.8108 0.00 0.08 0.00 0.09
12 0.8711 0.00 0.06 0.00 0.05
13 0.8712 0.00 0.05 0.00 0.08
14 0.8848 0.00 -0.09 0.00 -0.03
15 0.9745 0.00 -0.04 0.00 0.05
16 0.9746 0.00 -0.10 0.00 -0.07
17 0.9747 0.00 -0.21 0.00 -0.15
18 0.9776 0.00 0.12 0.00 0.02
19 0.9858 0.00 0.02 0.00 0.05
20 1.0567 0.00 0.01 0.00 0.04
21 1.0568 0.00 0.02 0.00 -0.01
22 1.0651 0.00 -0.06 0.00 -0.01
23 1.1140 0.00 -0.00 0.00 0.04
24 1.6899 0.00 0.13 0.00 -0.10
25 1.7063 0.00 0.13 0.00 0.00
26 1.7939 0.00 -0.01 0.00 -0.01
27 1.8457 0.00 0.08 0.00 0.03
28 1.8596 0.00 -0.06 0.00 0.21
29 1.9168 0.00 -0.09 0.00 -0.04
30 1.9304 0.00 -0.01 0.00 -0.12
31 2.0015 0.00 -0.09 0.00 -0.17
32 2.0969 0.00 0.03 0.00 -0.02
33 2.0998 0.00 -0.01 0.00 0.01
34 2.8342 0.00 -0.01 0.00 -0.06
35 7.9068 0.00 -0.05 0.00 -0.10
36 7.9070 0.00 0.06 0.00 0.16
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.
15KE173 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.164 39.164 39.165 ecceobj 0.258 0.258 0.258 incobj 8.120 8.120 8.120 qmin 28.907 28.919 28.905 qmax 50.627 50.620 50.633 amean 39.455 39.455 39.455 amin 39.000 38.998 38.999 amax 39.995 39.999 39.998 emean 0.241 0.241 0.241 emin 0.203 0.203 0.203 emax 0.267 0.267 0.267 imean 7.358 7.359 7.357 imin 5.637 5.634 5.629 imax 9.956 9.956 9.957 excite_mean 0.274 0.274 0.274 fracstop 1.000 1.000 1.000 cjmean 2.966 2.966 2.966 libcent 0 180.7 180.6 180.9 libamp 0 82.5 82.3 81.8 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 239.7 239.8 239.7 kozaiamp 73.2 73.2 73.2