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: 15KP173
# Created Sun Dec 22 02:10:23 2024
# Orbit generated from Bernstein formalism
# Fitting 34 observations of 34
# Arc: 2.10y
# First observation: 2014/05/30
# Last observation: 2016/07/04
Preliminary a, adot, b, bdot, g, gdot:
0.000019 0.038939 -0.000005 -0.003282 0.032005 0.000000
# Chi-squared of fit: 7.68 DOF: 62 RMS: 0.08
# Min/Max residuals: -0.19 0.19
# Exact a, adot, b, bdot, g, gdot:
1.866120E-05 3.930559E-02 -1.813927E-06 -3.321250E-03 3.252858E-02 4.168565E-03
# Covariance matrix:
1.7828E-13 -2.4882E-13 -3.7057E-15 1.2206E-14 -4.6248E-14 -1.8320E-12
-2.4882E-13 6.5988E-13 1.3667E-14 -4.6122E-14 1.4774E-13 6.9176E-12
-3.7057E-15 1.3667E-14 1.4109E-13 -1.0773E-13 7.0860E-15 1.8237E-13
1.2206E-14 -4.6122E-14 -1.0773E-13 1.2115E-13 -1.5679E-14 -5.9546E-13
-4.6248E-14 1.4774E-13 7.0860E-15 -1.5679E-14 2.4716E-13 2.3846E-12
-1.8320E-12 6.9176E-12 1.8237E-13 -5.9546E-13 2.3846E-12 8.9391E-11
# lat0 lon0 xBary yBary zBary JD0
5.672054 -125.343285 -0.248604 0.097292 -0.979040 2456807.890148
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 23.69835 +/- 0.031
Argument of Peri: 93.98775 +/- 0.056
Long of Asc Node: 103.45324 +/- 0.003
Inclination: 7.33810 +/- 0.000
Eccentricity: 0.22417048 +/- 0.0002
Semi-Major Axis: 39.34612921 +/- 0.0047
Time of Perihelion: 2450866.2338 +/- 7.7
Perihelion: 30.52588852 +/- 0.0082
Aphelion: 48.16636989 +/- 0.0094
Period (y) 246.8091 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -18.06420955 +/- 0.0003
Ecliptic Y -25.89851859 +/- 0.0004
Ecliptic Z 3.03839056 +/- 0.0000
Ecliptic XDOT 0.00247534 +/- 0.0000
Ecliptic YDOT -0.00222471 +/- 0.0000
Ecliptic ZDOT -0.00024337 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.72192852 +/- 0.0003
Geocenter to KBO 30.74219321 +/- 0.0005
# Hcoef: 9.13
The following table shows the complete astrometric record for 15KP173. 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 (15KP173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38937 15 34 51.343 -13 25 35.81 24.1r 15KP173 568 C~2lVG 2014 05 31.42799 15 34 45.135 -13 25 18.87 24.3r 15KP173 568 C~2lVG 2014 06 01.31617 15 34 39.900 -13 25 04.38 24.5r 15KP173 568 C~2lVG 2014 06 01.35941 15 34 39.644 -13 25 03.76 24.1r 15KP173 568 C~2lVG 2014 06 01.40234 15 34 39.382 -13 25 02.99 24.1r 15KP173 568 C~2lVG 2014 06 22.31374 15 32 46.746 -13 20 44.56 24.2r 15KP173 568 C~2lVG 2014 06 22.35659 15 32 46.535 -13 20 44.21 24.1r 15KP173 568 C~2lVG 2014 07 19.32970 15 31 12.016 -13 19 42.30 24.8r 15KP173 568 C~2lVG 2015 02 23.61954 15 49 54.634 -14 34 30.16 24.2r 15KP173 568 C~2lVG 2015 03 19.57896 15 49 38.560 -14 30 18.44 24.0r 15KP173 568 C~2lVG 2015 03 21.63764 15 49 33.875 -14 29 47.83 24.2r 15KP173 568 C~2lVG 2015 04 12.49631 15 48 16.213 -14 23 23.15 22.3r 15KP173 568 C~2lVG 2015 04 12.53727 15 48 16.012 -14 23 22.34 24.1r 15KP173 568 C~2lVG 2015 04 18.51897 15 47 47.128 -14 21 23.91 24.5r 15KP173 568 C~2lVG 2015 05 17.39179 15 45 00.641 -14 11 45.88 23.8r 15KP173 568 C~2lVG 2015 05 17.43344 15 45 00.377 -14 11 45.18 23.9r 15KP173 568 C~2lVG 2015 05 17.48044 15 45 00.070 -14 11 44.38 24.0r 15KP173 568 C~2lVG 2015 05 17.48543 15 45 00.044 -14 11 44.20 24.8r 15KP173 568 C~2lVG 2015 05 17.51054 15 44 59.879 -14 11 43.81 24.1r 15KP173 568 C~2lVG 2015 05 24.37741 15 44 17.525 -14 09 38.92 24.2r 15KP173 568 C~2lVG 2015 05 24.42348 15 44 17.238 -14 09 38.02 23.3r 15KP173 568 C~2lVG 2015 05 24.46441 15 44 16.973 -14 09 37.43 24.1r 15KP173 568 C~2lVG 2015 05 26.45236 15 44 04.775 -14 09 03.22 24.0r 15KP173 568 C~2lVG 2015 06 18.35156 15 41 53.151 -14 03 46.29 24.0r 15KP173 568 C~2lVG 2015 06 18.39254 15 41 52.946 -14 03 45.93 24.1r 15KP173 568 C~2lVG 2015 06 21.36717 15 41 37.822 -14 03 17.46 24.2r 15KP173 568 C~2lVG 2015 07 10.39924 15 40 17.728 -14 01 40.33 24.2r 15KP173 568 C~2lVG 2015 07 18.32574 15 39 54.467 -14 01 46.14 24.2r 15KP173 568 C~2lVG 2016 04 03.58309 15 57 33.177 -15 05 33.49 24.5w 15KP173 568 C~2lVG 2016 04 08.63261 15 57 13.454 -15 04 06.75 24.4w 15KP173 568 C~2lVG 2016 04 09.57656 15 57 09.513 -15 03 50.11 24.2w 15KP173 568 C~2lVG 2016 05 04.49833 15 55 01.184 -14 56 04.00 24.3w 15KP173 568 C~2lVG 2016 05 30.44177 15 52 22.890 -14 48 30.32 24.6w 15KP173 568 C~2lVG 2016 07 04.32652 15 49 18.992 -14 42 41.27 24.5w 15KP173 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 0.09 0.00 0.04
2 0.0028 -92.01 -0.15 -4.97 -0.13
3 0.0053 -169.65 0.00 -8.98 0.07
4 0.0054 -173.43 0.08 -9.26 0.02
5 0.0055 -177.32 0.01 -9.41 0.09
6 0.0628 -1835.36 0.02 -149.07 -0.12
7 0.0629 -1838.44 -0.02 -149.47 -0.14
8 0.1367 -3192.90 -0.02 -419.63 0.12
9 0.7371 13764.30 0.10 -1016.14 0.03
10 0.8027 13479.74 -0.17 -821.83 -0.19
11 0.8083 13406.30 0.03 -807.01 -0.05
12 0.8682 12216.31 0.19 -682.21 0.11
13 0.8683 12213.28 0.07 -682.07 0.09
14 0.8847 11776.26 -0.01 -660.20 -0.12
15 0.9637 9281.55 0.03 -640.88 0.14
16 0.9638 9277.65 0.02 -641.07 0.05
17 0.9640 9273.11 -0.12 -641.30 -0.07
18 0.9640 9272.70 -0.07 -641.21 0.03
19 0.9641 9270.27 -0.15 -641.37 -0.08
20 0.9829 8640.85 0.03 -659.32 0.07
21 0.9830 8636.57 0.03 -659.39 0.17
22 0.9831 8632.67 -0.06 -659.69 0.02
23 0.9885 8451.82 -0.02 -666.66 -0.07
24 1.0512 6512.65 -0.11 -795.34 -0.06
25 1.0513 6509.66 0.08 -795.67 -0.08
26 1.0595 6288.73 0.05 -818.49 0.02
27 1.1116 5131.31 0.07 -992.53 0.08
28 1.1333 4803.13 -0.04 -1076.48 0.12
29 1.8458 20708.05 -0.04 -1395.57 -0.07
30 1.8597 20407.50 -0.06 -1371.43 -0.04
31 1.8623 20347.60 0.03 -1367.30 -0.03
32 1.9305 18414.57 -0.01 -1309.82 -0.04
33 2.0015 16059.54 0.07 -1364.45 -0.02
34 2.0970 13366.99 0.03 -1610.80 0.07
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.
15KP173 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.068 39.085 39.051 ecceobj 0.218 0.219 0.217 incobj 7.333 7.333 7.333 qmin 29.411 29.354 29.497 qmax 50.051 50.028 50.018 amean 39.455 39.455 39.455 amin 39.056 39.065 39.043 amax 39.929 39.914 39.928 emean 0.233 0.234 0.233 emin 0.213 0.215 0.214 emax 0.254 0.255 0.253 imean 4.776 4.713 4.836 imin 3.276 3.108 3.476 imax 5.989 5.905 6.070 excite_mean 0.248 0.248 0.248 fracstop 1.000 1.000 1.000 cjmean 2.981 2.981 2.982 libcent 0 179.1 179.4 179.4 libamp 0 53.8 44.6 61.6 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 198.9 198.6 199.4 kozaiamp 180.0 180.0 179.9