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: 15KA174
# Created Wed Jul 17 01:10:56 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 46 observations of 46
# Arc: 9.93y
# First observation: 2014/05/29
# Last observation: 2024/05/04
# Chi-squared of fit: 10.20 DOF: 86 RMS: 0.08
# Min/Max residuals: -0.20 0.25
# Exact a, adot, b, bdot, g, gdot:
1.431139E-05 2.170744E-02 -2.943561E-06 -4.575795E-03 2.344658E-02 2.579417E-03
# Covariance matrix:
1.4187E-13 -9.1934E-14 -1.7275E-14 1.6394E-14 -3.9291E-14 -3.5710E-13
-9.1934E-14 8.2337E-14 1.5930E-14 -1.5515E-14 2.2283E-14 3.3802E-13
-1.7275E-14 1.5930E-14 5.7793E-14 -1.4868E-14 7.3490E-15 7.0807E-14
1.6394E-14 -1.5515E-14 -1.4868E-14 9.3286E-15 -4.7331E-15 -6.8859E-14
-3.9291E-14 2.2283E-14 7.3490E-15 -4.7331E-15 9.5458E-14 1.0268E-13
-3.5710E-13 3.3802E-13 7.0807E-14 -6.8859E-14 1.0268E-13 1.5002E-12
# lat0 lon0 xBary yBary zBary JD0
6.836634 -128.497443 -0.285611 0.115945 -0.966622 2456806.863358
# Heliocentric elements and errors
Epoch: 2456806.5000 = 2014/05/29
Mean Anomaly: 82.03936 +/- 0.018
Argument of Peri: 54.15213 +/- 0.020
Long of Asc Node: 80.66563 +/- 0.000
Inclination: 13.67752 +/- 0.000
Eccentricity: 0.12474551 +/- 0.0001
Semi-Major Axis: 43.69488794 +/- 0.0025
Time of Perihelion: 2432764.8562 +/- 5.7
Perihelion: 38.24414677 +/- 0.0032
Aphelion: 49.14562910 +/- 0.0036
Period (y) 288.8379 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -26.74392494 +/- 0.0003
Ecliptic Y -34.08048853 +/- 0.0004
Ecliptic Z 5.07695696 +/- 0.0001
Ecliptic XDOT 0.00175280 +/- 0.0000
Ecliptic YDOT -0.00186531 +/- 0.0000
Ecliptic ZDOT -0.00049454 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.61749358 +/- 0.0004
Geocenter to KBO 42.65011466 +/- 0.0006
# Hcoef: 7.62
The following table shows the complete astrometric record for 15KA174. 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 (15KA174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.36258 15 23 34.096 -11 31 48.87 23.8r 15KA174 568 C~2lVI 2014 05 29.40143 15 23 33.916 -11 31 48.38 23.8r 15KA174 568 C~2lVI 2014 05 29.44026 15 23 33.741 -11 31 47.87 23.5r 15KA174 568 C~2lVI 2014 05 30.47018 15 23 29.125 -11 31 35.87 23.8r 15KA174 568 C~2lVI 2014 06 21.36572 15 22 00.266 -11 28 32.51 23.8r 15KA174 568 C~2lVI 2014 06 21.40460 15 22 00.121 -11 28 32.35 24.0r 15KA174 568 C~2lVI 2015 02 23.64434 15 33 20.096 -12 27 39.54 24.1r 15KA174 568 C~2lVI 2015 03 19.58718 15 32 53.578 -12 23 33.78 23.9r 15KA174 568 C~2lVI 2015 03 21.64578 15 32 49.007 -12 23 06.39 24.0r 15KA174 568 C~2lVI 2015 04 12.50451 15 31 41.575 -12 17 34.91 23.9r 15KA174 568 C~2lVI 2015 04 12.54547 15 31 41.426 -12 17 34.12 23.8r 15KA174 568 C~2lVI 2015 04 18.52716 15 31 17.982 -12 15 55.99 24.1r 15KA174 568 C~2lVI 2015 05 17.40013 15 29 08.762 -12 08 20.04 24.2r 15KA174 568 C~2lVI 2015 05 17.44183 15 29 08.570 -12 08 19.61 24.2r 15KA174 568 C~2lVI 2015 05 17.49383 15 29 08.328 -12 08 18.42 23.3r 15KA174 568 C~2lVI 2015 05 17.51894 15 29 08.192 -12 08 18.29 23.5r 15KA174 568 C~2lVI 2015 05 24.38557 15 28 36.300 -12 06 45.14 23.8r 15KA174 568 C~2lVI 2015 05 24.43166 15 28 36.082 -12 06 44.51 23.9r 15KA174 568 C~2lVI 2015 05 24.47270 15 28 35.891 -12 06 43.96 23.9r 15KA174 568 C~2lVI 2015 05 26.46061 15 28 26.754 -12 06 18.87 23.9r 15KA174 568 C~2lVI 2015 06 18.35975 15 26 49.509 -12 02 40.70 24.0r 15KA174 568 C~2lVI 2015 06 18.40073 15 26 49.355 -12 02 40.43 23.9r 15KA174 568 C~2lVI 2015 06 21.37538 15 26 38.310 -12 02 23.38 24.0r 15KA174 568 C~2lVI 2015 06 21.39181 15 26 38.255 -12 02 23.27 23.9r 15KA174 568 C~2lVI 2015 07 18.33583 15 25 23.913 -12 02 07.92 24.1r 15KA174 568 C~2lVI 2015 08 11.33392 15 25 05.671 -12 05 35.59 23.8r 15KA174 568 C~2lVI 2016 02 05.63894 15 37 36.339 -13 01 03.42 24.5w 15KA174 568 C~2lVI 2016 02 11.65084 15 37 45.488 -13 00 56.79 24.5w 15KA174 568 C~2lVI 2016 03 15.58199 15 37 35.702 -12 56 58.54 24.4w 15KA174 568 C~2lVI 2016 03 15.59592 15 37 35.681 -12 56 58.39 24.2w 15KA174 568 C~2lVI 2016 03 17.60128 15 37 31.923 -12 56 34.65 24.7w 15KA174 568 C~2lVI 2016 04 03.52641 15 36 47.801 -12 52 44.51 24.2w 15KA174 568 C~2lVI 2016 04 08.57595 15 36 30.748 -12 51 28.17 24.4w 15KA174 568 C~2lVI 2016 04 29.46161 15 35 06.410 -12 45 59.37 24.1w 15KA174 568 C~2lVI 2016 05 04.39669 15 34 44.205 -12 44 42.78 24.2w 15KA174 568 C~2lVI 2016 05 30.48629 15 32 43.497 -12 38 47.46 24.1w 15KA174 568 C~2lVI 2016 07 03.36242 15 30 33.316 -12 35 03.62 24.6w 15KA174 568 C~2lVI 2016 07 04.27794 15 30 30.660 -12 35 02.49 24.4w 15KA174 568 C~2lVI 2016 07 05.34622 15 30 27.639 -12 35 01.60 24.5w 15KA174 568 C~2lVI 2017 06 26.27819 15 35 33.543 -13 08 17.46 24.2w 15KA174 568 C~2lVI 2017 08 20.27119 15 34 15.951 -13 13 01.18 24.3w 15KA174 568 C~2lVI 2017 08 23.25675 15 34 19.121 -13 13 44.87 24.3w 15KA174 568 C~2lVI 2017 08 24.24127 15 34 20.347 -13 13 59.93 24.3w 15KA174 568 C~2lVI 2024 05 04.358420 16 11 44.761 -16 52 38.88 24.8G 15KA174 G37 C~82mo 2024 05 04.393610 16 11 44.595 -16 52 38.51 15KA174 G37 C~82mo 2024 05 04.427930 16 11 44.432 -16 52 38.19 15KA174 G37 C~82mo
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 0.06 0.00 -0.05
2 0.0001 0.00 0.02 0.00 -0.01
3 0.0002 0.00 0.06 0.00 0.03
4 0.0030 0.00 -0.03 0.00 0.01
5 0.0630 0.00 0.00 0.00 -0.04
6 0.0631 0.00 -0.06 0.00 -0.08
7 0.7400 0.00 0.03 0.00 -0.07
8 0.8055 0.00 -0.17 0.00 0.16
9 0.8112 0.00 0.12 0.00 0.02
10 0.8710 0.00 -0.14 0.00 -0.08
11 0.8711 0.00 -0.01 0.00 0.04
12 0.8875 0.00 -0.11 0.00 0.03
13 0.9666 0.00 -0.06 0.00 -0.03
14 0.9667 0.00 0.04 0.00 -0.20
15 0.9668 0.00 0.11 0.00 0.25
16 0.9669 0.00 -0.14 0.00 0.02
17 0.9857 0.00 0.01 0.00 0.00
18 0.9858 0.00 -0.01 0.00 0.04
19 0.9859 0.00 0.01 0.00 0.05
20 0.9914 0.00 -0.06 0.00 -0.03
21 1.0541 0.00 0.05 0.00 0.00
22 1.0542 0.00 0.12 0.00 0.01
23 1.0623 0.00 -0.09 0.00 0.01
24 1.0624 0.00 0.00 0.00 0.03
25 1.1361 0.00 0.06 0.00 0.01
26 1.2018 0.00 -0.04 0.00 -0.07
27 1.6900 0.00 -0.00 0.00 -0.03
28 1.7065 0.00 0.02 0.00 0.03
29 1.7966 0.00 0.04 0.00 0.11
30 1.7967 0.00 0.12 0.00 0.10
31 1.8022 0.00 0.02 0.00 0.02
32 1.8485 0.00 0.04 0.00 -0.02
33 1.8623 0.00 -0.02 0.00 0.02
34 1.9195 0.00 -0.07 0.00 0.09
35 1.9330 0.00 0.07 0.00 0.01
36 2.0044 0.00 -0.03 0.00 -0.19
37 2.0972 0.00 0.16 0.00 -0.09
38 2.0997 0.00 -0.05 0.00 -0.01
39 2.1026 0.00 -0.01 0.00 0.02
40 3.0771 0.00 0.16 0.00 0.04
41 3.2277 0.00 -0.16 0.00 -0.20
42 3.2358 0.00 -0.13 0.00 0.03
43 3.2385 0.00 -0.05 0.00 0.04
44 9.9329 0.00 0.16 0.00 0.03
45 9.9330 0.00 0.01 0.00 0.02
46 9.9331 0.00 -0.15 0.00 -0.04
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.
15KA174 quality flag:2 Type: SCATNEAR CLASSICAL CLASSICAL axisobj 43.408 43.408 43.408 ecceobj 0.121 0.121 0.121 incobj 13.681 13.681 13.681 qmin 34.246 34.254 33.970 qmax 53.653 53.622 53.884 amean 43.727 43.727 43.727 amin 43.314 43.310 43.325 amax 44.213 44.173 44.171 emean 0.143 0.142 0.148 emin 0.068 0.065 0.060 emax 0.214 0.214 0.221 imean 10.849 10.920 11.226 imin 7.033 7.243 8.405 imax 13.284 13.494 13.797 excite_mean 0.241 0.242 0.250 fracstop 1.000 1.000 1.000 cjmean 3.028 3.028 3.024 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 98.0 97.6 87.6 kozaiamp 51.2 51.8 63.7