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: 15KE175
# Created Mon Jul 7 01:10:42 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 42 observations of 43
# Arc: 11.07y
# First observation: 2014/05/30
# Last observation: 2025/06/25
# Chi-squared of fit: 99.25 DOF: 78 RMS: 0.27
# Min/Max residuals: -2.10 0.61
# Exact a, adot, b, bdot, g, gdot:
1.653561E-05 2.538963E-02 4.465485E-07 4.153577E-04 2.482827E-02 -2.018427E-03
# Covariance matrix:
1.2161E-13 -7.2296E-14 2.6067E-16 -9.3218E-16 -2.7705E-14 -2.1488E-13
-7.2296E-14 6.6406E-14 -9.4175E-16 8.7966E-16 7.7378E-15 2.1678E-13
2.6067E-16 -9.4175E-16 5.4976E-14 -1.1270E-14 2.6816E-15 -4.0543E-15
-9.3218E-16 8.7966E-16 -1.1270E-14 6.1698E-15 2.7893E-16 3.1256E-15
-2.7705E-14 7.7378E-15 2.6816E-15 2.7893E-16 8.1292E-14 8.7643E-15
-2.1488E-13 2.1678E-13 -4.0543E-15 3.1256E-15 8.7643E-15 7.8450E-13
# lat0 lon0 xBary yBary zBary JD0
7.342423 -127.473706 -0.284942 0.124524 -0.965966 2456807.886218
# Heliocentric elements and errors
Epoch: 2456808.5000 = 2014/05/31
Mean Anomaly: 328.41961 +/- 0.017
Argument of Peri: 123.01227 +/- 0.022
Long of Asc Node: 149.79049 +/- 0.001
Inclination: 7.22077 +/- 0.000
Eccentricity: 0.12029566 +/- 0.0000
Semi-Major Axis: 45.71533901 +/- 0.0025
Time of Perihelion: 2466712.4020 +/- 9.8
Perihelion: 40.21598212 +/- 0.0026
Aphelion: 51.21469591 +/- 0.0031
Period (y) 309.1015 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.67099650 +/- 0.0003
Ecliptic Y -32.64766928 +/- 0.0004
Ecliptic Z 5.14739452 +/- 0.0001
Ecliptic XDOT 0.00235459 +/- 0.0000
Ecliptic YDOT -0.00152716 +/- 0.0000
Ecliptic ZDOT 0.00001711 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.24351857 +/- 0.0003
Geocenter to KBO 40.27675234 +/- 0.0005
# Hcoef: 7.19
The following table shows the complete astrometric record for 15KE175. 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 (15KE175) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38544 15 28 05.878 -11 17 39.15 23.5r 15KE175 568 C~2nvg 2014 05 31.42411 15 28 01.107 -11 17 24.26 23.5r 15KE175 568 C~2nvg 2014 06 01.31224 15 27 57.035 -11 17 11.84 23.3r 15KE175 568 C~2nvg 2014 06 01.35552 15 27 56.836 -11 17 11.26 23.3r 15KE175 568 C~2nvg 2014 06 01.39843 15 27 56.647 -11 17 10.54 22.7r 15KE175 568 C~2nvg 2014 06 22.30986 15 26 29.853 -11 13 29.78 23.4r 15KE175 568 C~2nvg 2014 06 22.35268 15 26 29.695 -11 13 29.57 23.4r 15KE175 568 C~2nvg 2014 07 19.32576 15 25 17.121 -11 12 42.81 23.3r 15KE175 568 C~2nvg 2015 02 25.61255 15 39 04.871 -12 04 58.56 23.4r 15KE175 568 C~2nvg 2015 03 19.61637 15 38 42.997 -11 59 47.53 23.0r 15KE175 568 C~2nvg 2015 03 22.53501 15 38 36.763 -11 58 57.51 23.3r 15KE175 568 C~2nvg 2015 04 13.54773 15 37 28.534 -11 52 00.67 23.2r 15KE175 568 C~2nvg 2015 04 13.58882 15 37 28.377 -11 51 59.88 23.4r 15KE175 568 C~2nvg 2015 04 18.55227 15 37 08.663 -11 50 20.59 23.3r 15KE175 568 C~2nvg 2015 05 21.31829 15 34 37.637 -11 40 02.54 23.2r 15KE175 568 C~2nvg 2015 05 21.35947 15 34 37.439 -11 40 01.88 23.2r 15KE175 568 C~2nvg 2015 05 21.40058 15 34 37.237 -11 40 01.22 23.4r 15KE175 568 C~2nvg 2015 05 22.47722 15 34 32.052 -11 39 43.68 23.3r 15KE175 568 C~2nvg 2015 05 25.46768 15 34 17.746 -11 38 56.13 23.2r 15KE175 568 C~2nvg 2015 06 20.35717 15 32 23.893 -11 33 47.78 23.3r 15KE175 568 C~2nvg 2015 06 20.39803 15 32 23.732 -11 33 47.48 23.3r 15KE175 568 C~2nvg 2015 06 23.41822 15 32 12.349 -11 33 25.63 23.5r 15KE175 568 C~2nvg 2015 07 11.29135 15 31 17.113 -11 32 25.67 23.4r 15KE175 568 C~2nvg 2015 07 18.36074 15 31 01.838 -11 32 35.88 23.5r 15KE175 568 C~2nvg 2016 02 05.65108 15 44 24.546 -12 26 17.79 23.7w 15KE175 568 C~2nvg 2016 02 11.66311 15 44 36.144 -12 25 49.82 23.7w 15KE175 568 C~2nvg 2016 02 12.60253 15 44 37.641 -12 25 44.23 23.8w 15KE175 568 C~2nvg 2016 03 15.60010 15 44 35.962 -12 19 45.43 23.6w 15KE175 568 C~2nvg 2016 03 15.60912 15 44 35.948 -12 19 45.32 23.8w 15KE175 568 C~2nvg 2016 03 17.61396 15 44 32.544 -12 19 13.54 23.7w 15KE175 568 C~2nvg 2016 04 03.53450 15 43 50.329 -12 14 17.48 23.4w 15KE175 568 C~2nvg 2016 04 08.58404 15 43 33.468 -12 12 41.88 23.5w 15KE175 568 C~2nvg 2016 04 29.46565 15 42 08.320 -12 05 57.00 23.4w 15KE175 568 C~2nvg 2016 05 04.40073 15 41 45.563 -12 04 23.61 23.4w 15KE175 568 C~2nvg 2016 05 30.46605 15 39 40.658 -11 57 10.39 23.3w 15KE175 568 C~2nvg 2017 03 30.57730 15 49 53.706 -12 34 23.76 23.6w 15KE175 568 C~2nvg 2017 07 28.28692 15 42 17.549 -12 12 15.40 23.6w 15KE175 568 C~2nvg 2017 07 28.30120 15 42 17.534 -12 12 15.46 23.6w 15KE175 568 C~2nvg 2017 07 29.36204 15 42 16.296 -12 12 22.26 23.0w 15KE175 568 C~2nvg 2017 08 20.25685 15 42 14.203 -12 16 11.12 23.7w 15KE175 568 C~2nvg 2017 08 26.26800 15 42 21.624 -12 17 41.59 23.7w 15KE175 568 C~2nvg 2025 06 25.25154 16 31 37.045 -14 30 20.31 23.1G 15KE175 G37 2025 06 25.29602 16 31 36.830 -14 30 20.06 15KE175 G37
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 -0.08 0.00 -0.02
2 0.0028 0.00 0.14 0.00 0.02
3 0.0053 0.00 -0.09 0.00 -0.02
4 0.0054 0.00 -0.06 0.00 -0.04
5 0.0055 0.00 0.10 0.00 0.08
6 0.0628 0.00 -0.11 0.00 0.02
7 0.0629 0.00 -0.09 0.00 -0.07
8 0.1367 0.00 -0.04 0.00 -0.09
9 0.7426 0.00 -0.13 0.00 -0.01
10 0.8028 0.00 -0.16 0.00 0.06
11 0.8108 0.00 -0.13 0.00 0.07
12 0.8711 0.00 -0.17 0.00 0.04
13 0.8712 0.00 -0.11 0.00 0.01
14 0.8848 0.00 0.01 0.00 0.03
15 0.9745 0.00 -0.16 0.00 0.12
16 0.9746 0.00 -0.11 0.00 0.11
17 0.9747 0.00 -0.12 0.00 0.10
18 0.9777 0.00 -0.19 0.00 0.03
19 0.9859 0.00 -0.18 0.00 0.05
20 1.0567 0.00 -0.12 0.00 0.03
21 1.0568 0.00 -0.12 0.00 0.01
22 1.0651 0.00 -0.13 0.00 0.02
23 1.1140 0.00 -0.10 0.00 -0.01
24 1.1334 0.00 -0.25 0.00 0.02
25 1.6872 0.00 -0.09 0.00 0.09
26 1.7037 0.00 -0.20 0.00 -0.03
27 1.7063 0.00 -0.16 0.00 -0.02
28 1.7939 0.00 -0.21 0.00 0.06
29 1.7939 0.00 -0.19 0.00 0.03
30 1.7994 0.00 -0.30 0.00 0.10
31 1.8457 0.00 -0.26 0.00 -0.08
32 1.8595 0.00 -0.33 0.00 -0.11
33 1.9167 0.00 -0.17 0.00 0.04
34 1.9302 0.00 -0.23 0.00 0.02
35 2.0016 0.00 -0.21 0.00 0.08
36 2.8342 0.00 -0.35 0.00 0.13
37 3.1619 0.00 -0.33 0.00 0.09
38 3.1620 0.00 -0.28 0.00 0.12
39 3.1649 0.00 -0.24 0.00 0.10
40 3.2248 0.00 -0.41 0.00 0.08
41 3.2413 0.00 -0.48 0.00 0.11
42 11.0715 0.00 -2.10 0.00 0.61
43 11.0716 0.00 ( -2.29) 0.00 ( 0.64)
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.
15KE175 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.442 45.449 45.434 ecceobj 0.119 0.119 0.118 incobj 7.228 7.228 7.228 qmin 39.665 39.708 39.740 qmax 52.243 52.256 52.147 amean 45.800 45.808 45.779 amin 45.424 45.428 45.402 amax 46.218 46.231 46.187 emean 0.117 0.117 0.116 emin 0.105 0.105 0.103 emax 0.130 0.131 0.129 imean 6.463 6.459 6.467 imin 5.982 5.974 5.998 imax 6.947 6.944 6.951 excite_mean 0.163 0.163 0.162 fracstop 1.000 1.000 1.000 cjmean 3.091 3.091 3.091 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 179.7 179.8 179.4 kozaiamp 179.9 179.9 180.0