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: 15KR173
# Created Fri Nov 22 02:10:22 2024
# Orbit generated from Bernstein formalism
# Fitting 39 observations of 39
# Arc: 2.10y
# First observation: 2014/05/29
# Last observation: 2016/07/05
Preliminary a, adot, b, bdot, g, gdot:
0.000069 0.026323 -0.000004 -0.000947 0.025985 0.000000
# Chi-squared of fit: 9.24 DOF: 72 RMS: 0.09
# Min/Max residuals: -0.21 0.20
# Exact a, adot, b, bdot, g, gdot:
1.537102E-05 2.663304E-02 -6.759369E-07 -9.616055E-04 2.640451E-02 2.800655E-03
# Covariance matrix:
1.9325E-13 -2.5358E-13 -2.8676E-15 6.6628E-15 -9.2495E-14 -2.7636E-12
-2.5358E-13 5.8707E-13 8.7871E-15 -2.1264E-14 2.6488E-13 8.6826E-12
-2.8676E-15 8.7871E-15 1.4313E-13 -9.6426E-14 6.1387E-15 1.5664E-13
6.6628E-15 -2.1264E-14 -9.6426E-14 8.9037E-14 -1.0493E-14 -3.6803E-13
-9.2495E-14 2.6488E-13 6.1387E-15 -1.0493E-14 2.8052E-13 4.9634E-12
-2.7636E-12 8.6826E-12 1.5664E-13 -3.6803E-13 4.9634E-12 1.5199E-10
# lat0 lon0 xBary yBary zBary JD0
6.790744 -128.939759 -0.293118 0.114907 -0.964496 2456806.863358
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 77.20199 +/- 0.048
Argument of Peri: 17.25666 +/- 0.025
Long of Asc Node: 123.73299 +/- 0.005
Inclination: 6.94937 +/- 0.000
Eccentricity: 0.11497404 +/- 0.0005
Semi-Major Axis: 39.32803303 +/- 0.0044
Time of Perihelion: 2437481.8065 +/- 11.7
Perihelion: 34.80633006 +/- 0.0185
Aphelion: 43.84973600 +/- 0.0188
Period (y) 246.6389 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -24.01973903 +/- 0.0005
Ecliptic Y -30.18897299 +/- 0.0006
Ecliptic Z 4.47818929 +/- 0.0001
Ecliptic XDOT 0.00195405 +/- 0.0000
Ecliptic YDOT -0.00197273 +/- 0.0000
Ecliptic ZDOT -0.00006455 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.83781833 +/- 0.0005
Geocenter to KBO 37.87231721 +/- 0.0008
# Hcoef: 8.47
The following table shows the complete astrometric record for 15KR173. 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 (15KR173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.36258 15 21 47.203 -11 27 47.22 24.5r 15KR173 568 C~2lVG 2014 05 29.40143 15 21 46.992 -11 27 46.69 24.4r 15KR173 568 C~2lVG 2014 05 29.44026 15 21 46.797 -11 27 46.16 24.1r 15KR173 568 C~2lVG 2014 05 30.47018 15 21 41.753 -11 27 30.31 24.3r 15KR173 568 C~2lVG 2014 05 31.38647 15 21 37.316 -11 27 16.66 25.0r 15KR173 568 C~2lVG 2014 06 21.36572 15 20 04.928 -11 23 20.00 24.3r 15KR173 568 C~2lVG 2014 06 21.40460 15 20 04.775 -11 23 19.73 24.4r 15KR173 568 C~2lVG 2015 02 23.64434 15 33 19.389 -12 22 02.81 24.7r 15KR173 568 C~2lVG 2015 03 19.58718 15 32 52.422 -12 16 36.61 24.4r 15KR173 568 C~2lVG 2015 03 21.64578 15 32 47.506 -12 16 01.36 24.2r 15KR173 568 C~2lVG 2015 04 12.50451 15 31 34.270 -12 09 02.26 24.3r 15KR173 568 C~2lVG 2015 04 12.54547 15 31 34.101 -12 09 01.40 24.1r 15KR173 568 C~2lVG 2015 05 17.40013 15 28 46.466 -11 57 26.31 24.2r 15KR173 568 C~2lVG 2015 05 17.44183 15 28 46.245 -11 57 25.50 24.1r 15KR173 568 C~2lVG 2015 05 17.49383 15 28 45.979 -11 57 24.50 23.9r 15KR173 568 C~2lVG 2015 05 17.51894 15 28 45.860 -11 57 24.13 24.2r 15KR173 568 C~2lVG 2015 05 24.38557 15 28 10.797 -11 55 25.55 24.7r 15KR173 568 C~2lVG 2015 05 24.43166 15 28 10.553 -11 55 24.89 24.3r 15KR173 568 C~2lVG 2015 05 24.47270 15 28 10.344 -11 55 24.15 24.1r 15KR173 568 C~2lVG 2015 05 26.46061 15 28 00.310 -11 54 51.96 24.5r 15KR173 568 C~2lVG 2015 06 18.35975 15 26 13.808 -11 50 03.80 24.2r 15KR173 568 C~2lVG 2015 06 18.40072 15 26 13.619 -11 50 03.27 24.2r 15KR173 568 C~2lVG 2015 06 21.37538 15 26 01.597 -11 49 38.93 24.4r 15KR173 568 C~2lVG 2015 06 21.39181 15 26 01.541 -11 49 38.78 24.5r 15KR173 568 C~2lVG 2015 07 10.41106 15 24 59.084 -11 48 23.41 24.7r 15KR173 568 C~2lVG 2015 07 18.33583 15 24 41.563 -11 48 35.59 24.8r 15KR173 568 C~2lVG 2015 08 11.33392 15 24 24.356 -11 51 50.74 24.5r 15KR173 568 C~2lVG 2016 02 11.65084 15 38 58.176 -12 48 05.46 24.8w 15KR173 568 C~2lVG 2016 03 15.58199 15 38 52.041 -12 42 23.12 24.6w 15KR173 568 C~2lVG 2016 03 15.59592 15 38 52.015 -12 42 22.69 25.2w 15KR173 568 C~2lVG 2016 03 17.60128 15 38 48.096 -12 41 51.38 24.9w 15KR173 568 C~2lVG 2016 04 03.52641 15 38 00.919 -12 36 55.14 24.4w 15KR173 568 C~2lVG 2016 04 08.57595 15 37 42.457 -12 35 18.26 24.7w 15KR173 568 C~2lVG 2016 04 29.46161 15 36 10.378 -12 28 24.73 24.5w 15KR173 568 C~2lVG 2016 05 04.39669 15 35 46.019 -12 26 48.54 24.5w 15KR173 568 C~2lVG 2016 05 30.48629 15 33 33.374 -12 19 19.07 24.4w 15KR173 568 C~2lVG 2016 07 03.36242 15 31 10.744 -12 14 12.23 22.7w 15KR173 568 C~2lVG 2016 07 04.27794 15 31 07.887 -12 14 09.56 24.5w 15KR173 568 C~2lVG 2016 07 05.34622 15 31 04.609 -12 14 07.04 24.6w 15KR173 568 C~2lVG
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 0.12 0.00 0.02
2 0.0001 -3.13 -0.10 -0.28 -0.10
3 0.0002 -6.04 -0.09 -0.50 -0.17
4 0.0030 -81.78 -0.06 -4.09 0.04
5 0.0055 -148.34 0.20 -7.54 0.10
6 0.0630 -1522.07 -0.05 -126.33 -0.06
7 0.0631 -1524.32 -0.05 -126.65 -0.08
8 0.7400 10659.81 -0.06 -611.59 0.16
9 0.8055 10195.50 -0.06 -391.96 0.09
10 0.8112 10116.80 -0.03 -375.46 0.04
11 0.8710 8970.54 0.02 -233.27 0.04
12 0.8711 8967.92 0.06 -233.05 0.07
13 0.9666 6409.70 -0.02 -169.10 -0.10
14 0.9667 6406.35 -0.08 -169.13 -0.05
15 0.9668 6402.32 -0.01 -169.13 0.03
16 0.9669 6400.53 0.18 -169.21 -0.01
17 0.9857 5872.19 0.08 -182.69 0.17
18 0.9858 5868.55 0.02 -182.94 0.05
19 0.9859 5865.39 0.04 -182.99 0.12
20 0.9914 5714.64 0.00 -188.59 0.10
21 1.0541 4128.05 0.14 -301.32 -0.04
22 1.0542 4125.23 -0.13 -301.50 0.06
23 1.0623 3948.21 -0.13 -322.31 -0.12
24 1.0624 3947.38 0.01 -322.38 -0.06
25 1.1144 3040.71 0.11 -480.46 -0.00
26 1.1361 2794.81 -0.10 -557.21 -0.09
27 1.2018 2599.69 0.02 -809.89 -0.05
28 1.7065 15872.21 -0.04 -926.49 0.08
29 1.7966 15701.92 0.04 -614.74 -0.21
30 1.7967 15701.44 0.01 -614.41 0.01
31 1.8022 15637.89 0.04 -597.73 0.03
32 1.8485 14892.39 -0.04 -475.76 -0.09
33 1.8623 14605.29 0.02 -446.75 0.03
34 1.9195 13190.61 -0.03 -371.20 -0.07
35 1.9330 12819.69 0.04 -364.43 -0.05
36 2.0044 10818.81 -0.07 -402.37 0.16
37 2.0972 8712.32 -0.14 -619.12 -0.11
38 2.0997 8671.00 0.03 -626.88 0.05
39 2.1026 8623.73 0.10 -636.32 0.02
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.
15KR173 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.083 39.097 39.070 ecceobj 0.111 0.112 0.110 incobj 6.946 6.946 6.946 qmin 34.163 34.091 34.094 qmax 45.147 45.114 45.263 amean 39.459 39.459 39.459 amin 39.082 39.076 39.070 amax 39.876 39.870 39.897 emean 0.115 0.115 0.114 emin 0.097 0.097 0.095 emax 0.134 0.132 0.134 imean 5.709 5.710 5.702 imin 4.982 5.013 4.950 imax 6.463 6.434 6.487 excite_mean 0.152 0.152 0.152 fracstop 1.000 1.000 1.000 cjmean 3.026 3.026 3.026 libcent 0 178.9 178.8 179.5 libamp 0 67.7 59.8 74.1 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 181.7 182.4 180.3 kozaiamp 180.0 180.0 180.0