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: 15KV173
# Created Sun Dec 22 02:10:23 2024
# Orbit generated from Bernstein formalism
# Fitting 35 observations of 35
# Arc: 2.98y
# First observation: 2014/05/30
# Last observation: 2017/05/21
Preliminary a, adot, b, bdot, g, gdot:
0.000071 0.036123 -0.000005 0.001900 0.030125 0.000000
# Chi-squared of fit: 8.10 DOF: 64 RMS: 0.09
# Min/Max residuals: -0.23 0.24
# Exact a, adot, b, bdot, g, gdot:
1.935013E-05 3.651866E-02 9.141075E-07 1.923601E-03 3.110342E-02 2.093056E-03
# Covariance matrix:
1.7434E-13 -2.2138E-13 1.7288E-15 -5.6426E-15 -4.1208E-14 -1.5290E-12
-2.2138E-13 5.1995E-13 -5.7253E-15 1.7142E-14 9.5903E-14 4.7851E-12
1.7288E-15 -5.7253E-15 1.3056E-13 -8.3843E-14 -3.3939E-16 -5.9639E-14
-5.6426E-15 1.7142E-14 -8.3843E-14 8.0477E-14 7.8048E-15 1.9794E-13
-4.1208E-14 9.5903E-14 -3.3939E-16 7.8048E-15 1.8403E-13 1.5080E-12
-1.5290E-12 4.7851E-12 -5.9639E-14 1.9794E-13 1.5080E-12 5.3340E-11
# lat0 lon0 xBary yBary zBary JD0
6.228409 -126.577277 -0.269604 0.106192 -0.972534 2456807.882338
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 18.30971 +/- 0.044
Argument of Peri: 37.64602 +/- 0.066
Long of Asc Node: 170.12470 +/- 0.003
Inclination: 6.73306 +/- 0.000
Eccentricity: 0.17536516 +/- 0.0001
Semi-Major Axis: 39.54917184 +/- 0.0035
Time of Perihelion: 2452180.0583 +/- 11.0
Perihelion: 32.61362496 +/- 0.0057
Aphelion: 46.48471871 +/- 0.0064
Period (y) 248.7221 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -19.41358790 +/- 0.0003
Ecliptic Y -26.61127042 +/- 0.0004
Ecliptic Z 3.48820215 +/- 0.0000
Ecliptic XDOT 0.00247799 +/- 0.0000
Ecliptic YDOT -0.00205153 +/- 0.0000
Ecliptic ZDOT 0.00018844 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.12423075 +/- 0.0003
Geocenter to KBO 32.15080223 +/- 0.0004
# Hcoef: 8.93
The following table shows the complete astrometric record for 15KV173. 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 (15KV173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.38156 15 30 30.689 -12 35 32.10 24.0r 15KV173 568 C~2lVH 2014 05 30.43011 15 30 30.420 -12 35 31.22 23.9r 15KV173 568 C~2lVH 2014 06 01.30833 15 30 19.896 -12 34 56.81 23.1r 15KV173 568 C~2lVH 2014 06 01.35165 15 30 19.644 -12 34 55.90 23.3r 15KV173 568 C~2lVH 2014 06 01.39455 15 30 19.400 -12 34 55.13 24.5r 15KV173 568 C~2lVH 2014 06 22.30598 15 28 33.502 -12 29 55.55 24.2r 15KV173 568 C~2lVH 2014 06 22.34880 15 28 33.314 -12 29 55.04 24.3r 15KV173 568 C~2lVH 2014 07 19.32186 15 27 06.017 -12 28 06.00 24.1r 15KV173 568 C~2lVH 2015 02 23.63607 15 45 00.394 -13 31 16.08 24.5r 15KV173 568 C~2lVH 2015 03 22.51769 15 44 34.975 -13 24 24.64 23.9r 15KV173 568 C~2lVH 2015 04 12.51271 15 43 20.773 -13 16 52.13 22.9r 15KV173 568 C~2lVH 2015 04 12.55363 15 43 20.574 -13 16 51.06 24.4r 15KV173 568 C~2lVH 2015 04 18.53589 15 42 52.599 -13 14 31.31 24.4r 15KV173 568 C~2lVH 2015 05 17.40845 15 40 13.017 -13 03 26.98 24.3r 15KV173 568 C~2lVH 2015 05 17.45019 15 40 12.766 -13 03 26.12 24.0r 15KV173 568 C~2lVH 2015 05 17.50220 15 40 12.466 -13 03 24.91 24.0r 15KV173 568 C~2lVH 2015 05 24.39373 15 39 32.041 -13 01 02.83 24.2r 15KV173 568 C~2lVH 2015 05 24.43983 15 39 31.772 -13 01 01.91 24.0r 15KV173 568 C~2lVH 2015 05 24.48091 15 39 31.531 -13 01 01.14 24.1r 15KV173 568 C~2lVH 2015 05 26.46900 15 39 19.960 -13 00 22.34 24.5r 15KV173 568 C~2lVH 2015 06 18.36794 15 37 15.843 -12 54 20.91 24.6r 15KV173 568 C~2lVH 2015 06 18.40888 15 37 15.636 -12 54 20.39 23.8r 15KV173 568 C~2lVH 2015 06 21.38354 15 37 01.470 -12 53 47.20 24.2r 15KV173 568 C~2lVH 2015 07 18.34401 15 35 25.883 -12 51 39.18 24.2r 15KV173 568 C~2lVH 2016 02 06.64935 15 52 38.281 -13 54 08.49 24.2w 15KV173 568 C~2lVH 2016 02 06.65340 15 52 38.284 -13 54 08.41 24.5w 15KV173 568 C~2lVH 2016 02 12.63895 15 52 54.415 -13 53 43.98 24.6w 15KV173 568 C~2lVH 2016 03 17.61800 15 53 02.165 -13 47 01.84 24.4w 15KV173 568 C~2lVH 2016 03 17.63019 15 53 02.154 -13 47 01.61 24.9w 15KV173 568 C~2lVH 2016 03 17.64294 15 53 02.119 -13 47 01.27 24.6w 15KV173 568 C~2lVH 2016 04 03.56283 15 52 15.790 -13 41 32.68 24.3w 15KV173 568 C~2lVH 2016 04 09.55630 15 51 52.610 -13 39 23.78 24.3w 15KV173 568 C~2lVH 2016 07 04.31842 15 44 25.109 -13 14 37.24 24.4w 15KV173 568 C~2lVH 2016 07 05.39078 15 44 21.119 -13 14 32.38 24.4w 15KV173 568 C~2lVH 2017 05 21.54276 15 56 35.533 -13 45 20.79 24.3w 15KV173 568 C~2lVH
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 -0.16 0.00 0.01
2 0.0001 -4.03 -0.01 -0.10 0.02
3 0.0053 -161.84 0.12 -4.16 -0.11
4 0.0054 -165.64 0.01 -4.17 -0.00
5 0.0055 -169.30 0.01 -4.29 -0.01
6 0.0628 -1746.16 0.01 -91.89 -0.04
7 0.0629 -1748.95 0.08 -92.07 0.06
8 0.1367 -3015.30 -0.07 -300.06 0.07
9 0.7372 13156.06 -0.05 -250.38 -0.06
10 0.8108 12699.03 0.04 65.74 -0.03
11 0.8683 11536.99 0.24 257.24 -0.17
12 0.8684 11533.91 0.04 257.61 -0.09
13 0.8847 11102.95 0.05 299.31 -0.05
14 0.9638 8675.82 -0.07 403.62 -0.01
15 0.9639 8672.05 -0.08 403.59 -0.04
16 0.9641 8667.49 0.06 403.75 0.09
17 0.9829 8058.90 -0.12 403.57 0.12
18 0.9830 8054.86 -0.05 403.54 0.14
19 0.9832 8051.25 0.00 403.47 0.10
20 0.9886 7877.50 0.02 401.52 0.04
21 1.0513 6026.94 0.12 325.24 0.00
22 1.0514 6023.87 0.06 325.03 0.02
23 1.0596 5814.60 -0.01 308.24 -0.01
24 1.1334 4425.60 -0.16 100.50 -0.04
25 1.6900 20010.89 0.19 -84.64 -0.05
26 1.6900 20010.92 0.04 -84.55 -0.01
27 1.7064 20236.70 -0.00 -8.41 -0.03
28 1.7994 20258.11 -0.23 410.74 -0.02
29 1.7994 20257.90 -0.05 410.93 0.04
30 1.7995 20257.32 -0.23 411.15 0.12
31 1.8458 19519.48 0.03 582.79 0.03
32 1.8622 19158.30 0.02 633.62 0.03
33 2.0970 12423.02 0.03 605.37 -0.06
34 2.1000 12365.00 0.05 596.70 -0.10
35 2.9765 23302.60 0.08 1196.12 0.01
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.
15KV173 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.286 39.298 39.274 ecceobj 0.169 0.170 0.169 incobj 6.748 6.748 6.748 qmin 31.836 31.798 31.811 qmax 47.557 47.569 47.620 amean 39.457 39.457 39.456 amin 39.007 39.012 39.019 amax 39.940 39.966 39.932 emean 0.175 0.175 0.175 emin 0.155 0.156 0.157 emax 0.192 0.192 0.193 imean 6.599 6.603 6.592 imin 6.042 6.051 6.040 imax 7.293 7.276 7.261 excite_mean 0.209 0.210 0.209 fracstop 1.000 1.000 1.000 cjmean 3.002 3.002 3.002 libcent 0 180.7 179.4 180.1 libamp 0 85.5 91.0 80.7 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 183.8 184.1 181.2 kozaiamp 180.0 180.0 180.0