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: 15KL167
# Created Thu Apr 25 01:17:12 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 3.25y
# First observation: 2014/05/30
# Last observation: 2017/08/31
Preliminary a, adot, b, bdot, g, gdot:
0.000476 0.023493 0.000050 0.002906 0.024186 0.000000
# Chi-squared of fit: 7.33 DOF: 58 RMS: 0.08
# Min/Max residuals: -0.28 0.19
# Exact a, adot, b, bdot, g, gdot:
1.574542E-05 2.434978E-02 2.082516E-06 2.991571E-03 2.447556E-02 5.594483E-03
# Covariance matrix:
3.5641E-13 -4.8199E-13 1.9758E-14 -4.3358E-14 -1.6857E-13 -5.6692E-12
-4.8199E-13 9.3504E-13 -4.2372E-14 9.1888E-14 2.6451E-13 1.2619E-11
1.9758E-14 -4.2372E-14 1.5362E-13 -8.3247E-14 -1.3399E-14 -6.0889E-13
-4.3358E-14 9.1888E-14 -8.3247E-14 6.9177E-14 3.0305E-14 1.3167E-12
-1.6857E-13 2.6451E-13 -1.3399E-14 3.0305E-14 1.9396E-13 3.4659E-12
-5.6692E-12 1.2619E-11 -6.0889E-13 1.3167E-12 3.4659E-12 1.8294E-10
# lat0 lon0 xBary yBary zBary JD0
7.755249 -126.654757 -0.270992 0.132016 -0.968980 2456807.886218
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 49.33038 +/- 0.030
Argument of Peri: 330.92745 +/- 0.024
Long of Asc Node: 186.67604 +/- 0.002
Inclination: 10.29839 +/- 0.000
Eccentricity: 0.25796115 +/- 0.0006
Semi-Major Axis: 47.49170351 +/- 0.0169
Time of Perihelion: 2440419.6267 +/- 5.0
Perihelion: 35.24068905 +/- 0.0303
Aphelion: 59.74271798 +/- 0.0348
Period (y) 327.2916 +/- 0.17
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.53597588 +/- 0.0004
Ecliptic Y -33.42256529 +/- 0.0006
Ecliptic Z 5.51346870 +/- 0.0001
Ecliptic XDOT 0.00183667 +/- 0.0000
Ecliptic YDOT -0.00209095 +/- 0.0000
Ecliptic ZDOT 0.00041615 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.82678950 +/- 0.0005
Geocenter to KBO 40.85708503 +/- 0.0007
# Hcoef: 8.29
The following table shows the complete astrometric record for 15KL167. 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 (15KL167) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38544 15 31 43.161 -11 05 32.32 24.5r 15KL167 568 C~2WaY 2014 05 31.42411 15 31 38.411 -11 05 16.37 25.0r 15KL167 568 C~2WaY 2014 06 01.31224 15 31 34.405 -11 05 03.03 24.4r 15KL167 568 C~2WaY 2014 06 01.35552 15 31 34.193 -11 05 02.46 24.5r 15KL167 568 C~2WaY 2015 03 19.64088 15 42 04.708 -11 39 06.87 24.5r 15KL167 568 C~2WaY 2015 03 22.56046 15 41 58.737 -11 38 12.21 24.1r 15KL167 568 C~2WaY 2015 03 22.62952 15 41 58.578 -11 38 10.95 24.6r 15KL167 568 C~2WaY 2015 04 13.57241 15 40 52.848 -11 30 44.77 24.8r 15KL167 568 C~2WaY 2015 04 13.61353 15 40 52.701 -11 30 44.01 24.2r 15KL167 568 C~2WaY 2015 04 18.59119 15 40 33.471 -11 28 58.11 25.2r 15KL167 568 C~2WaY 2015 05 21.34311 15 38 05.981 -11 18 06.23 24.4r 15KL167 568 C~2WaY 2015 05 21.38417 15 38 05.781 -11 18 05.45 24.4r 15KL167 568 C~2WaY 2015 05 21.42550 15 38 05.585 -11 18 04.71 24.6r 15KL167 568 C~2WaY 2015 05 22.50179 15 38 00.496 -11 17 46.26 24.5r 15KL167 568 C~2WaY 2015 05 25.49257 15 37 46.451 -11 16 55.94 24.5r 15KL167 568 C~2WaY 2015 06 20.38172 15 35 54.168 -11 11 24.83 23.9r 15KL167 568 C~2WaY 2015 06 20.42253 15 35 54.007 -11 11 24.43 24.3r 15KL167 568 C~2WaY 2015 06 23.44287 15 35 42.712 -11 10 59.93 24.6r 15KL167 568 C~2WaY 2015 07 12.30549 15 34 45.197 -11 09 43.15 24.6r 15KL167 568 C~2WaY 2015 07 18.38638 15 34 32.161 -11 09 47.19 24.8r 15KL167 568 C~2WaY 2016 02 06.62912 15 47 31.164 -11 56 47.93 24.8w 15KL167 568 C~2WaY 2016 02 12.61467 15 47 42.163 -11 56 04.92 24.4w 15KL167 568 C~2WaY 2016 03 15.62284 15 47 42.075 -11 49 03.30 25.3w 15KL167 568 C~2WaY 2016 04 03.54663 15 46 58.468 -11 43 05.44 24.6w 15KL167 568 C~2WaY 2016 04 08.59619 15 46 42.251 -11 41 22.90 24.3w 15KL167 568 C~2WaY 2016 04 29.49739 15 45 19.830 -11 34 12.73 24.9w 15KL167 568 C~2WaY 2016 05 04.47001 15 44 57.586 -11 32 33.47 24.4w 15KL167 568 C~2WaY 2016 05 30.46605 15 42 56.294 -11 24 59.04 24.5w 15KL167 568 C~2WaY 2017 07 28.30588 15 45 17.738 -11 29 15.14 24.6w 15KL167 568 C~2WaY 2017 08 20.26151 15 45 12.587 -11 32 50.93 25.4w 15KL167 568 C~2WaY 2017 08 26.27332 15 45 19.195 -11 34 14.79 25.1w 15KL167 568 C~2WaY 2017 08 31.25681 15 45 27.200 -11 35 32.21 24.3w 15KL167 568 C~2WaY
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 -0.00 0.00 -0.03
2 0.0028 -71.70 -0.10 -1.45 -0.04
3 0.0053 -132.15 0.14 -2.78 -0.03
4 0.0054 -135.31 -0.02 -2.98 -0.14
5 0.8029 9363.41 0.19 215.94 -0.06
6 0.8109 9265.16 -0.01 248.65 0.03
7 0.8111 9262.59 -0.04 249.33 -0.03
8 0.8711 8217.25 -0.10 457.36 0.05
9 0.8713 8214.97 0.06 457.59 -0.03
10 0.8849 7914.89 -0.14 494.26 0.15
11 0.9746 5651.12 0.07 616.56 0.04
12 0.9747 5648.07 0.01 616.62 0.09
13 0.9748 5645.09 0.04 616.66 0.12
14 0.9777 5567.94 -0.02 616.86 -0.05
15 0.9859 5355.15 0.03 616.79 0.01
16 1.0568 3671.02 -0.01 545.51 0.02
17 1.0569 3668.62 -0.05 545.33 0.05
18 1.0652 3501.32 -0.13 529.46 0.05
19 1.1168 2660.94 -0.00 401.60 -0.08
20 1.1335 2475.63 0.07 351.70 -0.06
21 1.6899 14288.61 -0.28 291.04 0.12
22 1.7063 14436.64 -0.04 370.00 -0.03
23 1.7939 14338.61 0.16 781.16 0.08
24 1.8458 13630.13 -0.01 983.34 0.06
25 1.8596 13373.68 0.12 1028.58 -0.04
26 1.9168 12091.40 0.05 1168.71 -0.08
27 1.9304 11749.28 0.06 1189.81 -0.02
28 2.0016 9904.41 -0.07 1218.25 -0.05
29 3.1620 11992.54 0.00 1451.65 0.00
30 3.2248 11968.55 0.16 1223.82 -0.09
31 3.2413 12082.76 -0.08 1164.54 0.05
32 3.2550 12215.53 -0.07 1116.27 -0.06
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.
15KL167 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.117 47.165 47.070 ecceobj 0.252 0.254 0.251 incobj 10.330 10.330 10.330 qmin 34.550 34.076 34.532 qmax 62.027 62.402 62.234 amean 47.797 47.796 47.798 amin 47.099 47.141 47.060 amax 48.589 48.593 48.652 emean 0.260 0.269 0.260 emin 0.239 0.251 0.243 emax 0.278 0.287 0.280 imean 10.373 9.866 10.313 imin 9.803 9.241 9.888 imax 11.138 10.235 10.943 excite_mean 0.316 0.319 0.316 fracstop 1.000 1.000 1.000 cjmean 3.023 3.021 3.024 libcent 0 179.1 179.8 179.8 libamp 0 156.8 152.3 160.4 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 175.0 153.9 164.5 kozaiamp 180.0 180.0 180.0