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: 15KB174
# Created Wed Apr 24 01:17:15 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 3.24y
# First observation: 2014/05/30
# Last observation: 2017/08/26
Preliminary a, adot, b, bdot, g, gdot:
0.000060 0.019294 -0.000002 0.000324 0.021701 0.000000
# Chi-squared of fit: 13.60 DOF: 58 RMS: 0.12
# Min/Max residuals: -0.42 0.30
# Exact a, adot, b, bdot, g, gdot:
1.385870E-05 1.948256E-02 -3.001987E-08 3.218119E-04 2.191697E-02 -2.011455E-04
# Covariance matrix:
2.0742E-13 -2.2885E-13 -1.2162E-15 -2.8353E-16 -8.3732E-14 -2.7895E-12
-2.2885E-13 4.3899E-13 2.6297E-15 3.2642E-17 1.6357E-13 6.8310E-12
-1.2162E-15 2.6297E-15 1.4103E-13 -7.1969E-14 2.1386E-15 4.6791E-14
-2.8353E-16 3.2642E-17 -7.1969E-14 5.4808E-14 1.9464E-15 6.4948E-16
-8.3732E-14 1.6357E-13 2.1386E-15 1.9464E-15 1.9087E-13 2.9124E-12
-2.7895E-12 6.8310E-12 4.6791E-14 6.4948E-16 2.9124E-12 1.2145E-10
# lat0 lon0 xBary yBary zBary JD0
6.037958 -125.587659 -0.252864 0.103428 -0.977320 2456807.894078
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 182.21850 +/- 0.439
Argument of Peri: 259.39172 +/- 0.440
Long of Asc Node: 153.41673 +/- 0.007
Inclination: 5.97912 +/- 0.000
Eccentricity: 0.06853253 +/- 0.0001
Semi-Major Axis: 43.61726815 +/- 0.0027
Time of Perihelion: 2508760.6248 +/- 128.3
Perihelion: 40.62806649 +/- 0.0037
Aphelion: 46.60646982 +/- 0.0039
Period (y) 288.0686 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -26.77269539 +/- 0.0005
Ecliptic Y -37.84394699 +/- 0.0007
Ecliptic Z 4.79941388 +/- 0.0001
Ecliptic XDOT 0.00199093 +/- 0.0000
Ecliptic YDOT -0.00139620 +/- 0.0000
Ecliptic ZDOT 0.00003746 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.60446241 +/- 0.0007
Geocenter to KBO 45.62675329 +/- 0.0009
# Hcoef: 8.03
The following table shows the complete astrometric record for 15KB174. 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 (15KB174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.39330 15 34 14.506 -13 00 48.63 24.9r 15KB174 568 C~2lVI 2014 06 01.32025 15 34 06.356 -13 00 23.18 24.6r 15KB174 568 C~2lVI 2014 06 01.36329 15 34 06.180 -13 00 22.40 24.6r 15KB174 568 C~2lVI 2014 06 01.40622 15 34 05.983 -13 00 22.53 25.3r 15KB174 568 C~2lVI 2014 06 22.36048 15 32 45.051 -12 56 43.07 23.8r 15KB174 568 C~2lVI 2014 07 19.33364 15 31 34.715 -12 55 09.51 24.7r 15KB174 568 C~2lVI 2015 02 23.63607 15 43 25.321 -13 38 36.13 24.8r 15KB174 568 C~2lVI 2015 03 22.51769 15 43 00.027 -13 33 41.35 24.7r 15KB174 568 C~2lVI 2015 04 12.51271 15 42 01.984 -13 28 17.86 25.3r 15KB174 568 C~2lVI 2015 04 12.55363 15 42 01.854 -13 28 17.07 24.7r 15KB174 568 C~2lVI 2015 05 24.39373 15 39 09.983 -13 16 57.34 24.8r 15KB174 568 C~2lVI 2015 05 24.43983 15 39 09.789 -13 16 56.43 24.7r 15KB174 568 C~2lVI 2015 05 24.48091 15 39 09.592 -13 16 55.86 24.8r 15KB174 568 C~2lVI 2015 05 26.46900 15 39 00.937 -13 16 27.86 24.9r 15KB174 568 C~2lVI 2015 06 18.36794 15 37 27.578 -13 12 03.13 24.3r 15KB174 568 C~2lVI 2015 06 18.40888 15 37 27.436 -13 12 02.80 24.7r 15KB174 568 C~2lVI 2015 06 21.38354 15 37 16.681 -13 11 37.71 24.7r 15KB174 568 C~2lVI 2015 07 10.41926 15 36 19.239 -13 09 59.72 25.0r 15KB174 568 C~2lVI 2015 07 18.34401 15 36 02.215 -13 09 52.03 24.4r 15KB174 568 C~2lVI 2016 02 06.63721 15 47 31.630 -13 53 48.48 24.8w 15KB174 568 C~2lVI 2016 02 12.62276 15 47 41.116 -13 53 30.54 24.9w 15KB174 568 C~2lVI 2016 03 15.63618 15 47 38.002 -13 49 01.49 24.8w 15KB174 568 C~2lVI 2016 04 08.60429 15 46 41.112 -13 43 18.26 25.4w 15KB174 568 C~2lVI 2016 04 29.51356 15 45 23.892 -13 37 36.28 24.4w 15KB174 568 C~2lVI 2016 05 04.48619 15 45 03.108 -13 36 15.23 24.6w 15KB174 568 C~2lVI 2016 05 30.46201 15 43 09.911 -13 29 50.07 25.1w 15KB174 568 C~2lVI 2016 07 04.29818 15 41 00.740 -13 24 45.54 25.1w 15KB174 568 C~2lVI 2016 07 05.36646 15 40 57.716 -13 24 41.50 24.8w 15KB174 568 C~2lVI 2017 03 30.57261 15 51 36.901 -13 59 28.25 25.1w 15KB174 568 C~2lVI 2017 05 21.53337 15 48 20.472 -13 46 02.72 23.6w 15KB174 568 C~2lVI 2017 08 19.27489 15 44 31.610 -13 41 15.35 25.0w 15KB174 568 C~2lVI 2017 08 26.26334 15 44 37.861 -13 42 30.91 25.3w 15KB174 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 0.04 0.00 0.05
2 0.0053 -121.75 0.02 -3.59 0.05
3 0.0054 -124.43 0.08 -3.44 0.30
4 0.0055 -127.20 0.06 -4.25 -0.42
5 0.0629 -1328.41 -0.05 -73.10 -0.00
6 0.1367 -2349.24 -0.04 -228.61 0.07
7 0.7371 8351.27 0.17 -330.87 -0.15
8 0.8107 7924.16 -0.07 -128.13 0.01
9 0.8682 7024.80 -0.10 -7.49 0.00
10 0.8683 7022.77 0.05 -7.16 0.15
11 0.9829 4423.40 0.04 73.69 -0.08
12 0.9830 4420.43 0.14 73.91 0.20
13 0.9831 4417.50 -0.06 73.80 0.13
14 0.9886 4288.04 0.02 71.60 0.01
15 1.0513 2900.33 -0.21 10.35 -0.12
16 1.0514 2898.23 -0.03 10.19 -0.11
17 1.0595 2739.64 -0.08 -2.27 0.05
18 1.1116 1901.08 -0.10 -104.29 -0.12
19 1.1333 1657.60 0.06 -155.43 0.07
20 1.6899 12062.27 0.01 -406.83 -0.04
21 1.7063 12193.30 0.08 -358.28 -0.02
22 1.7940 12088.37 -0.08 -105.82 0.17
23 1.8596 11200.77 -0.31 42.47 -0.16
24 1.9168 10024.02 0.10 121.31 0.11
25 1.9304 9709.82 0.14 131.52 -0.03
26 2.0016 8011.65 -0.05 130.21 -0.01
27 2.0969 6105.49 0.10 -6.86 -0.08
28 2.0999 6061.59 0.09 -13.12 -0.12
29 2.8342 15635.16 -0.00 57.00 0.00
30 2.9764 12653.30 -0.00 207.59 0.03
31 3.2221 9330.10 -0.02 -265.52 -0.03
32 3.2413 9436.22 0.05 -318.43 0.11
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.
15KB174 quality flag:2 Type: 7:4EEE CLASSICAL CLASSICAL axisobj 43.392 43.400 43.384 ecceobj 0.074 0.074 0.074 incobj 5.986 5.986 5.986 qmin 39.492 39.398 39.822 qmax 48.264 48.353 47.962 amean 43.726 43.727 43.726 amin 43.361 43.351 43.346 amax 44.120 44.114 44.128 emean 0.077 0.073 0.073 emin 0.060 0.047 0.059 emax 0.094 0.096 0.087 imean 5.336 5.358 5.534 imin 4.276 4.636 4.719 imax 6.273 6.556 6.292 excite_mean 0.121 0.119 0.121 fracstop 1.000 1.000 1.000 cjmean 3.081 3.081 3.081 libcent 0 166.5 -180.0 -180.0 libamp 0 130.4 -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 194.7 197.4 177.9 kozaiamp 179.9 180.0 179.9