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: 15KD174
# Created Sun Dec 22 02:10:24 2024
# Orbit generated from Bernstein formalism
# Fitting 35 observations of 35
# Arc: 3.25y
# First observation: 2014/05/30
# Last observation: 2017/08/31
Preliminary a, adot, b, bdot, g, gdot:
-0.000071 0.038246 -0.000007 0.010815 0.030915 0.000000
# Chi-squared of fit: 5.18 DOF: 64 RMS: 0.07
# Min/Max residuals: -0.21 0.15
# Exact a, adot, b, bdot, g, gdot:
1.951590E-05 3.811611E-02 5.561024E-06 1.078071E-02 3.102802E-02 -5.973915E-03
# Covariance matrix:
1.6551E-13 -1.8826E-13 1.4044E-14 -3.5516E-14 -4.2254E-14 -1.1688E-12
-1.8826E-13 3.9184E-13 -3.7661E-14 9.3910E-14 7.7208E-14 3.1186E-12
1.4044E-14 -3.7661E-14 1.1994E-13 -6.9824E-14 -7.9895E-15 -3.4151E-13
-3.5516E-14 9.3910E-14 -6.9824E-14 7.3721E-14 2.4305E-14 8.5208E-13
-4.2254E-14 7.7208E-14 -7.9895E-15 2.4305E-14 1.3517E-13 7.1379E-13
-1.1688E-12 3.1186E-12 -3.4151E-13 8.5208E-13 7.1379E-13 2.8285E-11
# lat0 lon0 xBary yBary zBary JD0
6.869707 -127.328011 -0.282464 0.116636 -0.967676 2456807.886218
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 349.49243 +/- 0.008
Argument of Peri: 51.00807 +/- 0.024
Long of Asc Node: 210.69502 +/- 0.000
Inclination: 17.01330 +/- 0.000
Eccentricity: 0.41963772 +/- 0.0001
Semi-Major Axis: 55.27424164 +/- 0.0059
Time of Perihelion: 2461181.5938 +/- 3.5
Perihelion: 32.07908513 +/- 0.0056
Aphelion: 78.46939816 +/- 0.0095
Period (y) 410.9532 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -19.77031979 +/- 0.0002
Ecliptic Y -26.38858663 +/- 0.0003
Ecliptic Z 3.85520261 +/- 0.0000
Ecliptic XDOT 0.00305549 +/- 0.0000
Ecliptic YDOT -0.00153644 +/- 0.0000
Ecliptic ZDOT 0.00088151 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.19767515 +/- 0.0003
Geocenter to KBO 32.22893112 +/- 0.0004
# Hcoef: 8.82
The following table shows the complete astrometric record for 15KD174. 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 (15KD174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38544 15 28 11.645 -11 47 16.72 24.0r 15KD174 568 C~2lVI 2014 05 31.42411 15 28 06.013 -11 46 52.98 23.9r 15KD174 568 C~2lVI 2014 06 01.31224 15 28 01.221 -11 46 33.03 24.2r 15KD174 568 C~2lVI 2014 06 01.35552 15 28 00.989 -11 46 31.98 23.9r 15KD174 568 C~2lVI 2014 06 01.39843 15 28 00.749 -11 46 30.95 23.9r 15KD174 568 C~2lVI 2014 06 21.35408 15 26 23.221 -11 40 21.43 23.9r 15KD174 568 C~2lVI 2014 06 21.39293 15 26 23.042 -11 40 20.93 24.1r 15KD174 568 C~2lVI 2014 07 19.27038 15 24 57.490 -11 36 46.29 23.9r 15KD174 568 C~2lVI 2015 02 25.61666 15 43 23.704 -12 24 03.30 24.3r 15KD174 568 C~2lVI 2015 03 19.62043 15 43 06.454 -12 16 04.04 24.3r 15KD174 568 C~2lVI 2015 03 22.53917 15 42 59.951 -12 14 49.33 24.1r 15KD174 568 C~2lVI 2015 04 18.55634 15 41 21.029 -12 02 07.46 23.9r 15KD174 568 C~2lVI 2015 05 21.32236 15 38 23.444 -11 46 46.68 23.6r 15KD174 568 C~2lVI 2015 05 21.36353 15 38 23.207 -11 46 45.78 23.9r 15KD174 568 C~2lVI 2015 05 21.40471 15 38 22.968 -11 46 44.67 24.0r 15KD174 568 C~2lVI 2015 05 22.48134 15 38 16.814 -11 46 17.72 23.8r 15KD174 568 C~2lVI 2015 05 25.47177 15 37 59.824 -11 45 04.45 23.9r 15KD174 568 C~2lVI 2015 06 20.36123 15 35 44.691 -11 36 38.58 24.0r 15KD174 568 C~2lVI 2015 06 20.40209 15 35 44.504 -11 36 37.97 24.0r 15KD174 568 C~2lVI 2015 06 23.42230 15 35 31.061 -11 35 56.59 23.5r 15KD174 568 C~2lVI 2015 07 11.29546 15 34 26.576 -11 33 18.23 24.0r 15KD174 568 C~2lVI 2015 07 18.36550 15 34 09.254 -11 32 58.18 24.0r 15KD174 568 C~2lVI 2016 02 06.64531 15 51 57.935 -12 22 49.27 24.6w 15KD174 568 C~2lVI 2016 02 12.63086 15 52 15.020 -12 21 41.38 24.2w 15KD174 568 C~2lVI 2016 04 08.60833 15 51 25.265 -12 00 48.35 24.3w 15KD174 568 C~2lVI 2016 04 09.55226 15 51 21.543 -12 00 21.27 24.6w 15KD174 568 C~2lVI 2016 04 29.50547 15 49 47.678 -11 50 44.00 24.1w 15KD174 568 C~2lVI 2016 05 04.47810 15 49 20.846 -11 48 23.64 24.2w 15KD174 568 C~2lVI 2016 05 30.45392 15 46 53.181 -11 37 28.52 24.2w 15KD174 568 C~2lVI 2016 07 04.31437 15 44 05.441 -11 28 52.74 24.3w 15KD174 568 C~2lVI 2016 07 05.38672 15 44 01.607 -11 28 45.38 24.2w 15KD174 568 C~2lVI 2017 03 28.61692 16 01 29.724 -11 59 01.18 24.0w 15KD174 568 C~2lVI 2017 05 21.55221 15 57 17.081 -11 34 18.04 23.8w 15KD174 568 C~2lVI 2017 08 20.26626 15 52 23.512 -11 25 55.51 24.4w 15KD174 568 C~2lVI 2017 08 31.26147 15 52 44.212 -11 28 55.19 15KD174 568 C~2lVI
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 -0.01
2 0.0028 -86.00 0.15 2.63 0.03
3 0.0053 -159.11 0.01 4.62 -0.07
4 0.0054 -162.67 0.06 4.79 0.04
5 0.0055 -166.34 -0.02 4.92 0.09
6 0.0601 -1645.67 0.01 8.80 0.02
7 0.0603 -1648.34 -0.10 8.63 -0.07
8 0.1366 -2919.28 -0.02 -95.89 -0.21
9 0.7426 13535.45 0.14 1065.99 -0.05
10 0.8028 13176.51 -0.01 1473.94 0.01
11 0.8108 13065.96 -0.14 1524.43 0.00
12 0.8848 11471.68 -0.03 1925.85 -0.16
13 0.9745 8714.78 -0.04 2204.50 0.10
14 0.9746 8711.18 0.03 2204.54 -0.02
15 0.9747 8707.50 0.01 2204.79 0.06
16 0.9777 8613.15 -0.04 2209.47 0.01
17 0.9859 8352.93 -0.06 2221.26 0.04
18 1.0567 6301.82 0.01 2237.82 -0.00
19 1.0569 6299.01 0.05 2237.76 0.03
20 1.0651 6097.13 -0.02 2230.48 0.00
21 1.1141 5138.49 -0.03 2156.04 0.13
22 1.1334 4886.44 -0.02 2114.05 0.09
23 1.6900 20904.76 -0.03 2873.52 0.04
24 1.7064 21135.85 -0.00 2996.86 -0.08
25 1.8596 20133.33 -0.04 4057.78 -0.02
26 1.8622 20073.45 0.02 4071.83 -0.04
27 1.9168 18587.81 0.10 4321.28 0.13
28 1.9304 18168.91 0.01 4368.00 0.01
29 2.0016 15891.83 -0.03 4507.14 0.07
30 2.0970 13360.94 -0.02 4435.91 -0.05
31 2.0999 13304.16 0.03 4429.89 -0.03
32 2.8288 28886.49 0.05 6156.99 0.05
33 2.9765 24873.93 -0.13 6788.26 -0.01
34 3.2249 20500.30 0.14 6302.45 -0.03
35 3.2550 20840.68 -0.03 6195.93 -0.10
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.
15KD174 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE axisobj 54.856 54.869 54.842 ecceobj 0.417 0.417 0.417 incobj 17.062 17.062 17.062 qmin 31.549 31.547 31.551 qmax 80.642 80.615 80.629 amean 55.461 55.461 55.461 amin 54.806 54.822 54.786 amax 56.364 56.377 56.393 emean 0.417 0.418 0.417 emin 0.406 0.408 0.405 emax 0.432 0.431 0.431 imean 17.935 17.866 17.976 imin 17.358 17.359 17.357 imax 18.200 18.097 18.244 excite_mean 0.519 0.519 0.519 fracstop 1.000 1.000 1.000 cjmean 2.889 2.889 2.890 libcent 0 180.2 180.3 180.4 libamp 0 58.3 49.8 60.9 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 81.0 79.6 81.1 kozaiamp 31.7 30.4 31.7