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: 15KG174
# Created Sun Dec 22 02:10:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 32 observations of 32
# Arc: 6.95y
# First observation: 2014/05/29
# Last observation: 2021/05/12
# Chi-squared of fit: 6.67 DOF: 58 RMS: 0.08
# Min/Max residuals: -0.13 0.23
# Exact a, adot, b, bdot, g, gdot:
1.930298E-05 3.765636E-02 -5.655220E-06 -1.192451E-02 3.128277E-02 -9.590055E-03
# Covariance matrix:
1.3734E-13 -1.1757E-13 -1.9965E-14 2.9748E-14 -2.3137E-15 -3.2929E-13
-1.1757E-13 1.6239E-13 2.9812E-14 -4.4794E-14 -1.5770E-14 4.9630E-13
-1.9965E-14 2.9812E-14 7.8700E-14 -2.9625E-14 1.8627E-15 1.0129E-13
2.9748E-14 -4.4794E-14 -2.9625E-14 2.8806E-14 1.2991E-15 -1.5152E-13
-2.3137E-15 -1.5770E-14 1.8627E-15 1.2991E-15 2.0964E-13 -1.9477E-14
-3.2929E-13 4.9630E-13 1.0129E-13 -1.5152E-13 -1.9477E-14 1.6780E-12
# lat0 lon0 xBary yBary zBary JD0
6.239008 -129.599082 -0.304468 0.105233 -0.962085 2456806.875008
# Heliocentric elements and errors
Epoch: 2456806.5000 = 2014/05/29
Mean Anomaly: 344.92292 +/- 0.003
Argument of Peri: 203.33743 +/- 0.007
Long of Asc Node: 69.27442 +/- 0.000
Inclination: 18.62754 +/- 0.000
Eccentricity: 0.45507240 +/- 0.0001
Semi-Major Axis: 55.43721274 +/- 0.0067
Time of Perihelion: 2463120.6548 +/- 26.3
Perihelion: 30.20926744 +/- 0.0047
Aphelion: 80.66515804 +/- 0.0102
Period (y) 412.7721 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -20.63879010 +/- 0.0003
Ecliptic Y -25.42342397 +/- 0.0004
Ecliptic Z 3.47387314 +/- 0.0001
Ecliptic XDOT 0.00299366 +/- 0.0000
Ecliptic YDOT -0.00154884 +/- 0.0000
Ecliptic ZDOT -0.00112853 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 32.93004128 +/- 0.0003
Geocenter to KBO 31.96667287 +/- 0.0005
# Hcoef: 8.59
The following table shows the complete astrometric record for 15KG174. 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 (15KG174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.37423 15 18 37.322 -11 49 40.48 23.8r 15KG174 568 C~2lVJ 2014 05 29.41307 15 18 37.106 -11 49 39.94 23.5r 15KG174 568 C~2lVJ 2014 05 29.45191 15 18 36.886 -11 49 39.49 24.1r 15KG174 568 C~2lVJ 2014 05 30.48182 15 18 31.036 -11 49 27.57 23.7r 15KG174 568 C~2lVJ 2014 05 31.39817 15 18 25.899 -11 49 17.25 23.7r 15KG174 568 C~2lVJ 2014 06 21.37736 15 16 39.892 -11 46 47.18 23.9r 15KG174 568 C~2lVJ 2014 06 21.41627 15 16 39.697 -11 46 46.96 23.7r 15KG174 568 C~2lVJ 2014 07 19.29388 15 15 13.101 -11 48 36.79 23.4r 15KG174 568 C~2lVJ 2014 07 19.31003 15 15 13.068 -11 48 37.02 23.5r 15KG174 568 C~2lVJ 2015 03 19.56666 15 32 31.723 -13 21 06.47 23.9r 15KG174 568 C~2lVJ 2015 03 21.62515 15 32 26.126 -13 20 42.11 23.4r 15KG174 568 C~2lVJ 2015 04 12.48402 15 31 01.347 -13 15 23.11 23.7r 15KG174 568 C~2lVJ 2015 04 12.52502 15 31 01.150 -13 15 22.54 24.1r 15KG174 568 C~2lVJ 2015 04 18.50669 15 30 31.146 -13 13 43.12 23.8r 15KG174 568 C~2lVJ 2015 05 17.37006 15 27 44.472 -13 05 49.51 23.3r 15KG174 568 C~2lVJ 2015 05 17.45892 15 27 43.921 -13 05 48.09 23.5r 15KG174 568 C~2lVJ 2015 05 24.36087 15 27 02.495 -13 04 11.21 23.7r 15KG174 568 C~2lVJ 2015 05 24.40713 15 27 02.210 -13 04 10.49 23.5r 15KG174 568 C~2lVJ 2015 05 24.44802 15 27 01.967 -13 04 09.88 23.0r 15KG174 568 C~2lVJ 2015 05 26.43568 15 26 50.178 -13 03 44.34 23.6r 15KG174 568 C~2lVJ 2015 06 18.33508 15 24 45.397 -13 00 15.70 23.8r 15KG174 568 C~2lVJ 2015 06 18.37614 15 24 45.201 -13 00 15.51 23.7r 15KG174 568 C~2lVJ 2015 06 21.35078 15 24 31.199 -13 00 02.58 23.7r 15KG174 568 C~2lVJ 2015 07 10.38241 15 23 19.078 -13 00 10.92 23.6r 15KG174 568 C~2lVJ 2016 04 08.58811 15 39 25.355 -14 29 07.91 23.9w 15KG174 568 C~2lVJ 2016 04 29.46970 15 37 36.948 -14 23 52.92 24.0w 15KG174 568 C~2lVJ 2016 05 04.40478 15 37 08.047 -14 22 36.61 23.9w 15KG174 568 C~2lVJ 2016 05 30.47820 15 34 30.159 -14 16 38.08 23.6w 15KG174 568 C~2lVJ 2016 07 04.29009 15 31 37.107 -14 13 22.88 24.1w 15KG174 568 C~2lVJ 2016 07 05.35837 15 31 33.249 -14 13 24.15 24.4w 15KG174 568 C~2lVJ 2021 05 12.412440 16 20 52.781 -20 27 18.52 23.6G 15KG174 G37 C~4pVr 2021 05 12.444080 16 20 52.569 -20 27 18.46 15KG174 G37 C~4pVr
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 -0.06
2 0.0001 0.00 0.06 0.00 0.02
3 0.0002 0.00 0.13 0.00 0.01
4 0.0030 0.00 -0.12 0.00 -0.07
5 0.0055 0.00 0.01 0.00 -0.11
6 0.0630 0.00 0.22 0.00 -0.07
7 0.0631 0.00 -0.10 0.00 0.04
8 0.1394 0.00 -0.07 0.00 -0.03
9 0.1395 0.00 -0.13 0.00 -0.09
10 0.8055 0.00 -0.11 0.00 0.12
11 0.8111 0.00 -0.11 0.00 -0.01
12 0.8709 0.00 0.06 0.00 0.12
13 0.8710 0.00 0.13 0.00 0.02
14 0.8874 0.00 0.02 0.00 -0.12
15 0.9664 0.00 -0.02 0.00 -0.08
16 0.9667 0.00 -0.09 0.00 0.03
17 0.9856 0.00 0.07 0.00 0.05
18 0.9857 0.00 0.00 0.00 0.16
19 0.9858 0.00 0.08 0.00 0.23
20 0.9913 0.00 0.04 0.00 0.01
21 1.0540 0.00 -0.04 0.00 0.02
22 1.0541 0.00 0.05 0.00 0.01
23 1.0622 0.00 -0.01 0.00 -0.03
24 1.1143 0.00 -0.06 0.00 -0.06
25 1.8623 0.00 0.02 0.00 -0.05
26 1.9195 0.00 0.01 0.00 -0.00
27 1.9330 0.00 0.02 0.00 -0.03
28 2.0044 0.00 -0.01 0.00 -0.02
29 2.0997 0.00 -0.02 0.00 -0.03
30 2.1026 0.00 0.05 0.00 0.08
31 6.9542 0.00 0.06 0.00 0.07
32 6.9543 0.00 -0.10 0.00 -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.
15KG174 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE axisobj 55.012 55.011 55.013 ecceobj 0.453 0.453 0.453 incobj 18.643 18.643 18.643 qmin 29.534 29.528 29.477 qmax 82.920 82.800 83.011 amean 55.461 55.461 55.461 amin 54.744 54.792 54.764 amax 56.470 56.424 56.469 emean 0.457 0.456 0.458 emin 0.448 0.446 0.448 emax 0.468 0.467 0.470 imean 17.330 17.374 17.285 imin 17.146 17.191 17.115 imax 17.525 17.594 17.496 excite_mean 0.546 0.545 0.546 fracstop 1.000 1.000 1.000 cjmean 2.847 2.848 2.848 libcent 0 181.4 180.3 179.6 libamp 0 79.9 68.4 73.3 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 202.4 207.4 199.1 kozaiamp 180.0 180.0 180.0