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: 15KU175
# Created Wed May 8 01:17:11 2024
# Orbit generated from Bernstein formalism
# Fitting 31 observations of 31
# Arc: 2.10y
# First observation: 2014/05/29
# Last observation: 2016/07/05
Preliminary a, adot, b, bdot, g, gdot:
0.000002 0.023569 0.000001 0.001657 0.023760 0.000000
# Chi-squared of fit: 12.33 DOF: 56 RMS: 0.11
# Min/Max residuals: -0.25 0.21
# Exact a, adot, b, bdot, g, gdot:
1.506635E-05 2.369711E-02 1.243850E-06 1.668218E-03 2.417194E-02 -9.111041E-04
# Covariance matrix:
1.9311E-13 -2.3584E-13 1.1872E-15 -6.8202E-15 -6.0157E-14 -2.5209E-12
-2.3584E-13 6.3003E-13 -4.6517E-15 2.9982E-14 3.0375E-13 1.0805E-11
1.1872E-15 -4.6517E-15 1.6256E-13 -1.1123E-13 -1.4839E-15 -9.0256E-14
-6.8202E-15 2.9982E-14 -1.1123E-13 1.0931E-13 2.2926E-14 6.4657E-13
-6.0157E-14 3.0375E-13 -1.4839E-15 2.2926E-14 3.7589E-13 7.2472E-12
-2.5209E-12 1.0805E-11 -9.0256E-14 6.4657E-13 7.2472E-12 2.2808E-10
# lat0 lon0 xBary yBary zBary JD0
5.978315 -127.664809 -0.271239 0.101880 -0.972326 2456806.851688
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 321.83348 +/- 0.532
Argument of Peri: 97.47419 +/- 0.603
Long of Asc Node: 177.03445 +/- 0.005
Inclination: 7.06151 +/- 0.000
Eccentricity: 0.04666521 +/- 0.0004
Semi-Major Axis: 43.91642297 +/- 0.0046
Time of Perihelion: 2468070.3713 +/- 157.1
Perihelion: 41.86705376 +/- 0.0201
Aphelion: 45.96579217 +/- 0.0202
Period (y) 291.0373 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -25.52545316 +/- 0.0006
Ecliptic Y -33.50875933 +/- 0.0008
Ecliptic Z 4.30890709 +/- 0.0001
Ecliptic XDOT 0.00219419 +/- 0.0000
Ecliptic YDOT -0.00154689 +/- 0.0000
Ecliptic ZDOT 0.00017730 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.34326854 +/- 0.0008
Geocenter to KBO 41.37027910 +/- 0.0010
# Hcoef: 8.38
The following table shows the complete astrometric record for 15KU175. 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 (15KU175) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.35091 15 25 57.819 -12 34 07.27 24.6r 15KU175 568 C~2nvi 2014 05 29.38978 15 25 57.627 -12 34 06.59 25.0r 15KU175 568 C~2nvi 2014 05 29.42862 15 25 57.461 -12 34 06.00 24.7r 15KU175 568 C~2nvi 2014 05 30.45852 15 25 52.777 -12 33 50.11 25.3r 15KU175 568 C~2nvi 2014 06 21.35408 15 24 22.614 -12 29 16.01 15KU175 568 C~2nvi 2014 06 21.39293 15 24 22.463 -12 29 15.61 24.7r 15KU175 568 C~2nvi 2014 07 19.27038 15 23 08.585 -12 27 19.16 24.7r 15KU175 568 C~2nvi 2015 02 20.65258 15 36 31.317 -13 15 55.26 24.5r 15KU175 568 C~2nvi 2015 03 21.62515 15 36 04.885 -13 09 51.20 25.0r 15KU175 568 C~2nvi 2015 05 17.37425 15 32 24.850 -12 52 05.08 24.5r 15KU175 568 C~2nvi 2015 05 17.37924 15 32 24.821 -12 52 04.62 24.4r 15KU175 568 C~2nvi 2015 05 17.42094 15 32 24.632 -12 52 03.93 24.7r 15KU175 568 C~2nvi 2015 05 17.46306 15 32 24.431 -12 52 03.47 23.7r 15KU175 568 C~2nvi 2015 05 24.36500 15 31 51.861 -12 50 04.22 24.5r 15KU175 568 C~2nvi 2015 05 24.41125 15 31 51.640 -12 50 03.49 24.7r 15KU175 568 C~2nvi 2015 05 24.45211 15 31 51.441 -12 50 02.78 24.4r 15KU175 568 C~2nvi 2015 05 26.43973 15 31 42.176 -12 49 30.02 24.4r 15KU175 568 C~2nvi 2015 06 18.38024 15 30 02.956 -12 44 23.56 24.1r 15KU175 568 C~2nvi 2015 06 21.35487 15 29 51.707 -12 43 54.90 24.7r 15KU175 568 C~2nvi 2015 07 10.38689 15 28 52.713 -12 42 01.84 24.2r 15KU175 568 C~2nvi 2015 07 18.31268 15 28 35.896 -12 41 53.14 24.7r 15KU175 568 C~2nvi 2015 08 11.33945 15 28 17.838 -12 43 48.84 24.7r 15KU175 568 C~2nvi 2016 02 06.62103 15 41 38.125 -13 30 42.44 25.0w 15KU175 568 C~2nvi 2016 02 12.60657 15 41 48.274 -13 30 17.93 24.9w 15KU175 568 C~2nvi 2016 03 15.60416 15 41 43.602 -13 24 51.33 24.4w 15KU175 568 C~2nvi 2016 03 15.61316 15 41 43.558 -13 24 50.97 25.0w 15KU175 568 C~2nvi 2016 04 03.54259 15 40 57.459 -13 19 38.68 24.8w 15KU175 568 C~2nvi 2016 04 08.59215 15 40 40.641 -13 18 06.06 25.2w 15KU175 568 C~2nvi 2016 05 30.48224 15 36 51.331 -13 02 25.23 24.8w 15KU175 568 C~2nvi 2016 07 04.28603 15 34 35.297 -12 56 34.97 24.8w 15KU175 568 C~2nvi 2016 07 05.37863 15 34 32.118 -12 56 30.16 24.9w 15KU175 568 C~2nvi
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 0.09 0.00 -0.03
2 0.0001 -2.89 -0.09 -0.04 -0.01
3 0.0002 -5.39 0.11 -0.08 0.02
4 0.0030 -75.77 0.04 -1.77 -0.22
5 0.0630 -1422.66 -0.01 -66.15 0.08
6 0.0631 -1424.90 -0.13 -66.31 0.09
7 0.1394 -2501.60 0.04 -225.24 0.16
8 0.7318 9600.85 0.12 -171.59 -0.22
9 0.8112 9138.02 -0.01 89.81 0.11
10 0.9665 5755.61 0.01 348.72 -0.23
11 0.9665 5755.08 -0.15 349.06 0.11
12 0.9667 5752.23 0.03 349.06 0.10
13 0.9668 5749.27 0.13 348.79 -0.18
14 0.9857 5257.90 -0.12 348.57 -0.05
15 0.9858 5254.59 -0.11 348.49 -0.08
16 0.9859 5251.59 -0.18 348.47 -0.07
17 0.9913 5112.10 -0.00 347.23 0.15
18 1.0542 3629.13 -0.03 289.53 0.00
19 1.0623 3462.49 0.04 276.93 -0.06
20 1.1144 2597.80 0.15 174.26 0.07
21 1.1361 2357.13 0.11 122.04 0.07
22 1.2019 2129.59 -0.11 -55.29 0.17
23 1.6927 14176.02 0.11 25.74 -0.00
24 1.7091 14314.86 0.01 84.35 0.05
25 1.7967 14171.52 0.21 386.65 0.09
26 1.7967 14170.81 -0.25 386.85 0.21
27 1.8486 13440.36 -0.04 533.02 -0.09
28 1.8624 13178.90 -0.01 565.42 -0.07
29 2.0045 9691.41 -0.10 685.76 -0.09
30 2.0998 7673.56 0.11 548.58 -0.06
31 2.1027 7627.24 0.02 542.04 -0.03
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.
15KU175 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.666 43.678 43.654 ecceobj 0.046 0.046 0.045 incobj 7.082 7.082 7.082 qmin 41.300 41.324 41.351 qmax 46.850 46.915 46.802 amean 43.992 44.008 43.980 amin 43.654 43.668 43.636 amax 44.343 44.362 44.330 emean 0.044 0.045 0.043 emin 0.030 0.031 0.029 emax 0.057 0.058 0.056 imean 7.188 7.190 7.188 imin 6.641 6.636 6.640 imax 7.774 7.778 7.777 excite_mean 0.133 0.133 0.133 fracstop 1.000 1.000 1.000 cjmean 3.080 3.081 3.080 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 183.7 185.3 183.5 kozaiamp 180.0 179.9 180.0