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: 15KA175
# Created Wed Jul 17 01:10:57 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 41 observations of 41
# Arc: 8.97y
# First observation: 2014/05/29
# Last observation: 2023/05/17
# Chi-squared of fit: 2.47 DOF: 76 RMS: 0.04
# Min/Max residuals: -0.12 0.11
# Exact a, adot, b, bdot, g, gdot:
1.569882E-05 2.405823E-02 1.587873E-06 2.046385E-03 2.447377E-02 -1.696400E-03
# Covariance matrix:
1.4513E-13 -1.2339E-13 7.6848E-15 -9.1352E-15 -7.3813E-15 -4.7320E-13
-1.2339E-13 1.4935E-13 -1.0443E-14 1.1684E-14 -1.5621E-14 6.0231E-13
7.6848E-15 -1.0443E-14 5.7673E-14 -1.5429E-14 4.0665E-15 -4.4815E-14
-9.1352E-15 1.1684E-14 -1.5429E-14 1.1083E-14 -1.2979E-15 5.0543E-14
-7.3813E-15 -1.5621E-14 4.0665E-15 -1.2979E-15 1.2050E-13 -5.2994E-14
-4.7320E-13 6.0231E-13 -4.4815E-14 5.0543E-14 -5.2994E-14 2.6071E-12
# lat0 lon0 xBary yBary zBary JD0
7.528968 -129.176304 -0.297190 0.127162 -0.961710 2456806.867238
# Heliocentric elements and errors
Epoch: 2456806.5000 = 2014/05/29
Mean Anomaly: 302.97673 +/- 0.048
Argument of Peri: 121.21697 +/- 0.059
Long of Asc Node: 174.40915 +/- 0.001
Inclination: 8.76692 +/- 0.000
Eccentricity: 0.07017116 +/- 0.0001
Semi-Major Axis: 43.31858356 +/- 0.0029
Time of Perihelion: 2473301.7698 +/- 16.5
Perihelion: 40.27886830 +/- 0.0035
Aphelion: 46.35829882 +/- 0.0038
Period (y) 285.1147 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -25.97288528 +/- 0.0004
Ecliptic Y -32.34021122 +/- 0.0004
Ecliptic Z 5.35391265 +/- 0.0001
Ecliptic XDOT 0.00221890 +/- 0.0000
Ecliptic YDOT -0.00153470 +/- 0.0000
Ecliptic ZDOT 0.00020221 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.82281274 +/- 0.0004
Geocenter to KBO 40.86015620 +/- 0.0006
# Hcoef: 6.94
The following table shows the complete astrometric record for 15KA175. 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 (15KA175) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.36646 15 21 37.819 -10 41 21.96 23.1r 15KA175 568 C~2nvf 2014 05 29.40531 15 21 37.645 -10 41 21.23 23.1r 15KA175 568 C~2nvf 2014 05 29.44414 15 21 37.466 -10 41 20.68 23.3r 15KA175 568 C~2nvf 2014 05 30.47406 15 21 32.801 -10 41 04.82 23.1r 15KA175 568 C~2nvf 2014 05 31.39037 15 21 28.688 -10 40 50.96 23.1r 15KA175 568 C~2nvf 2014 06 21.36960 15 20 03.397 -10 36 47.36 23.1r 15KA175 568 C~2nvf 2014 06 21.40848 15 20 03.259 -10 36 47.15 23.1r 15KA175 568 C~2nvf 2014 07 19.28605 15 18 51.451 -10 35 40.96 23.2r 15KA175 568 C~2nvf 2015 02 25.60844 15 32 21.898 -11 24 58.59 23.2r 15KA175 568 C~2nvf 2015 03 19.61229 15 31 56.636 -11 19 08.18 23.2r 15KA175 568 C~2nvf 2015 03 22.53071 15 31 50.053 -11 18 13.02 23.0r 15KA175 568 C~2nvf 2015 04 13.54363 15 30 40.117 -11 10 39.25 23.0r 15KA175 568 C~2nvf 2015 04 13.58475 15 30 39.952 -11 10 38.39 23.0r 15KA175 568 C~2nvf 2015 04 18.54818 15 30 20.081 -11 08 51.46 23.1r 15KA175 568 C~2nvf 2015 05 21.31423 15 27 50.134 -10 57 51.17 23.0r 15KA175 568 C~2nvf 2015 05 21.35538 15 27 49.936 -10 57 50.47 22.9r 15KA175 568 C~2nvf 2015 05 21.39649 15 27 49.742 -10 57 49.75 23.0r 15KA175 568 C~2nvf 2015 05 22.46905 15 27 44.676 -10 57 31.11 23.0r 15KA175 568 C~2nvf 2015 05 22.47313 15 27 44.652 -10 57 31.08 23.0r 15KA175 568 C~2nvf 2015 05 24.46857 15 27 35.275 -10 56 57.11 22.9r 15KA175 568 C~2nvf 2015 05 25.45951 15 27 30.639 -10 56 40.66 15KA175 568 C~2nvf 2015 05 25.46359 15 27 30.621 -10 56 40.55 22.9r 15KA175 568 C~2nvf 2015 05 26.45643 15 27 25.990 -10 56 24.28 22.9r 15KA175 568 C~2nvf 2015 06 20.35311 15 25 39.932 -10 51 12.35 23.1r 15KA175 568 C~2nvf 2015 06 20.39396 15 25 39.779 -10 51 12.02 23.2r 15KA175 568 C~2nvf 2015 06 23.41352 15 25 28.838 -10 50 48.47 23.0r 15KA175 568 C~2nvf 2015 07 11.28721 15 24 36.346 -10 49 41.14 23.2r 15KA175 568 C~2nvf 2015 07 18.35664 15 24 22.184 -10 49 49.50 23.1r 15KA175 568 C~2nvf 2015 08 11.34354 15 24 06.552 -10 52 45.09 23.2r 15KA175 568 C~2nvf 2016 02 11.64674 15 37 42.064 -11 40 40.68 23.4w 15KA175 568 C~2nvf 2016 03 15.57785 15 37 35.891 -11 33 33.49 23.5w 15KA175 568 C~2nvf 2016 03 17.59718 15 37 32.191 -11 32 57.75 23.4w 15KA175 568 C~2nvf 2016 04 03.52224 15 36 48.141 -11 27 29.96 23.3w 15KA175 568 C~2nvf 2016 04 08.57191 15 36 30.933 -11 25 45.45 23.3w 15KA175 568 C~2nvf 2016 04 29.45352 15 35 05.296 -11 18 27.22 23.5w 15KA175 568 C~2nvf 2016 05 04.38860 15 34 42.655 -11 16 46.73 23.2w 15KA175 568 C~2nvf 2016 05 30.49033 15 32 39.468 -11 09 03.28 23.4w 15KA175 568 C~2nvf 2016 07 03.35835 15 30 27.379 -11 03 49.09 23.3w 15KA175 568 C~2nvf 2016 07 05.34215 15 30 21.695 -11 03 43.55 23.5w 15KA175 568 C~2nvf 2023 05 17.342790 16 13 40.130 -12 38 46.02 23.3G 15KA175 G37 C~6oDj 2023 05 17.395990 16 13 39.883 -12 38 44.98 15KA175 G37 C~6oDj
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 -0.05 0.00 -0.04
2 0.0001 0.00 0.04 0.00 0.08
3 0.0002 0.00 0.05 0.00 0.02
4 0.0030 0.00 -0.02 0.00 -0.03
5 0.0055 0.00 -0.02 0.00 -0.06
6 0.0630 0.00 -0.05 0.00 0.05
7 0.0631 0.00 -0.00 0.00 -0.06
8 0.1394 0.00 0.06 0.00 0.01
9 0.7454 0.00 0.01 0.00 -0.01
10 0.8056 0.00 -0.03 0.00 0.03
11 0.8136 0.00 -0.04 0.00 0.04
12 0.8739 0.00 -0.02 0.00 0.06
13 0.8740 0.00 -0.05 0.00 0.03
14 0.8876 0.00 0.03 0.00 0.01
15 0.9773 0.00 -0.04 0.00 0.06
16 0.9774 0.00 -0.05 0.00 0.04
17 0.9775 0.00 0.01 0.00 0.04
18 0.9804 0.00 0.06 0.00 0.04
19 0.9804 0.00 -0.01 0.00 -0.01
20 0.9859 0.00 0.03 0.00 0.01
21 0.9886 0.00 0.02 0.00 -0.03
22 0.9886 0.00 0.04 0.00 0.01
23 0.9913 0.00 -0.01 0.00 0.01
24 1.0595 0.00 0.00 0.00 -0.03
25 1.0596 0.00 0.03 0.00 -0.05
26 1.0679 0.00 -0.00 0.00 0.01
27 1.1168 0.00 0.02 0.00 0.01
28 1.1362 0.00 0.04 0.00 -0.00
29 1.2019 0.00 -0.05 0.00 -0.02
30 1.7064 0.00 0.01 0.00 -0.03
31 1.7966 0.00 0.04 0.00 0.02
32 1.8021 0.00 0.03 0.00 -0.04
33 1.8485 0.00 -0.04 0.00 -0.02
34 1.8623 0.00 -0.02 0.00 -0.08
35 1.9195 0.00 0.02 0.00 -0.12
36 1.9330 0.00 -0.00 0.00 -0.02
37 2.0044 0.00 -0.06 0.00 -0.00
38 2.0972 0.00 -0.05 0.00 0.04
39 2.1026 0.00 0.01 0.00 0.06
40 8.9664 0.00 -0.09 0.00 -0.10
41 8.9665 0.00 0.11 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.
15KA175 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.076 43.076 43.076 ecceobj 0.071 0.071 0.071 incobj 8.792 8.792 8.792 qmin 39.627 39.648 39.612 qmax 47.398 47.413 47.366 amean 43.395 43.395 43.395 amin 43.055 43.054 43.055 amax 43.753 43.754 43.757 emean 0.069 0.069 0.069 emin 0.055 0.055 0.055 emax 0.084 0.084 0.083 imean 8.880 8.880 8.880 imin 8.236 8.235 8.238 imax 9.581 9.583 9.581 excite_mean 0.169 0.169 0.169 fracstop 1.000 1.000 1.000 cjmean 3.060 3.060 3.060 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 179.1 179.3 178.8 kozaiamp 180.0 180.0 180.0