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: 15KC173
# Created Sun Dec 22 02:10:23 2024
# Orbit generated from Bernstein formalism
# Fitting 42 observations of 42
# Arc: 3.24y
# First observation: 2014/05/29
# Last observation: 2017/08/24
Preliminary a, adot, b, bdot, g, gdot:
0.000361 0.028727 -0.000139 -0.007916 0.028165 0.000000
# Chi-squared of fit: 12.51 DOF: 78 RMS: 0.10
# Min/Max residuals: -0.22 0.23
# Exact a, adot, b, bdot, g, gdot:
1.594244E-05 2.946678E-02 -5.519572E-06 -8.169819E-03 2.833009E-02 3.053436E-03
# Covariance matrix:
1.4858E-13 -1.9104E-13 -2.1695E-14 4.5702E-14 -4.6151E-14 -1.7501E-12
-1.9104E-13 4.4490E-13 6.2894E-14 -1.3415E-13 7.5078E-14 5.0953E-12
-2.1695E-14 6.2894E-14 1.0655E-13 -7.3705E-14 1.1318E-14 8.0234E-13
4.5702E-14 -1.3415E-13 -7.3705E-14 9.0481E-14 -2.1212E-14 -1.7136E-12
-4.6151E-14 7.5078E-14 1.1318E-14 -2.1212E-14 1.1686E-13 8.7816E-13
-1.7501E-12 5.0953E-12 8.0234E-13 -1.7136E-12 8.7816E-13 6.5031E-11
# lat0 lon0 xBary yBary zBary JD0
7.324632 -130.012586 -0.311509 0.123157 -0.957695 2456806.878888
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 47.65695 +/- 0.027
Argument of Peri: 94.42263 +/- 0.049
Long of Asc Node: 74.48509 +/- 0.001
Inclination: 17.09104 +/- 0.000
Eccentricity: 0.13620137 +/- 0.0003
Semi-Major Axis: 39.41280904 +/- 0.0043
Time of Perihelion: 2444836.4492 +/- 6.5
Perihelion: 34.04473052 +/- 0.0110
Aphelion: 44.78088757 +/- 0.0114
Period (y) 247.4368 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.89361413 +/- 0.0003
Ecliptic Y -27.75274728 +/- 0.0003
Ecliptic Z 4.50006405 +/- 0.0001
Ecliptic XDOT 0.00192291 +/- 0.0000
Ecliptic YDOT -0.00213584 +/- 0.0000
Ecliptic ZDOT -0.00074535 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.25718034 +/- 0.0003
Geocenter to KBO 35.29816231 +/- 0.0004
# Hcoef: 8.55
The following table shows the complete astrometric record for 15KC173. 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 (15KC173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.37811 15 18 09.267 -10 40 22.47 22.9r 15KC173 568 C~2lVE 2014 05 29.41695 15 18 09.039 -10 40 22.27 23.8r 15KC173 568 C~2lVE 2014 05 29.45582 15 18 08.855 -10 40 21.51 24.6r 15KC173 568 C~2lVE 2014 05 30.48570 15 18 03.422 -10 40 09.06 24.4r 15KC173 568 C~2lVE 2014 05 31.40206 15 17 58.663 -10 39 58.43 24.6r 15KC173 568 C~2lVE 2014 06 21.38127 15 16 20.167 -10 37 18.47 24.2r 15KC173 568 C~2lVE 2014 06 21.42015 15 16 20.003 -10 37 18.49 23.9r 15KC173 568 C~2lVE 2014 07 19.29779 15 14 58.237 -10 38 43.42 23.2r 15KC173 568 C~2lVE 2014 07 19.31397 15 14 58.201 -10 38 43.47 24.7r 15KC173 568 C~2lVE 2015 02 23.62370 15 30 23.385 -11 57 55.01 24.2r 15KC173 568 C~2lVE 2015 03 19.58308 15 29 51.843 -11 53 24.32 24.0r 15KC173 568 C~2lVE 2015 03 21.64170 15 29 46.389 -11 52 53.41 24.3r 15KC173 568 C~2lVE 2015 04 12.50040 15 28 25.919 -11 46 38.65 24.0r 15KC173 568 C~2lVE 2015 04 12.54137 15 28 25.724 -11 46 37.88 24.0r 15KC173 568 C~2lVE 2015 04 18.52304 15 27 57.773 -11 44 47.10 24.1r 15KC173 568 C~2lVE 2015 05 17.39593 15 25 24.189 -11 36 19.43 24.2r 15KC173 568 C~2lVE 2015 05 17.43761 15 25 23.954 -11 36 18.86 24.0r 15KC173 568 C~2lVE 2015 05 17.48962 15 25 23.666 -11 36 17.86 24.1r 15KC173 568 C~2lVE 2015 05 17.51475 15 25 23.511 -11 36 17.75 24.4r 15KC173 568 C~2lVE 2015 05 21.31015 15 25 02.604 -11 35 20.81 24.2r 15KC173 568 C~2lVE 2015 05 21.35129 15 25 02.382 -11 35 20.22 24.2r 15KC173 568 C~2lVE 2015 05 21.39236 15 25 02.146 -11 35 19.56 24.0r 15KC173 568 C~2lVE 2015 05 23.36603 15 24 51.328 -11 34 51.21 24.3r 15KC173 568 C~2lVE 2015 05 24.40193 15 24 45.677 -11 34 36.97 23.9r 15KC173 568 C~2lVE 2015 05 25.50079 15 24 39.694 -11 34 21.96 24.3r 15KC173 568 C~2lVE 2015 06 18.35562 15 22 40.539 -11 30 32.24 24.0r 15KC173 568 C~2lVE 2015 06 21.37129 15 22 27.553 -11 30 18.00 24.1r 15KC173 568 C~2lVE 2015 07 10.40334 15 21 21.307 -11 30 17.36 24.0r 15KC173 568 C~2lVE 2015 07 18.32993 15 21 02.961 -11 31 04.45 24.1r 15KC173 568 C~2lVE 2016 02 05.62213 15 36 02.979 -12 49 13.68 24.4w 15KC173 568 C~2lVE 2016 03 15.56425 15 36 04.154 -12 45 19.44 24.7w 15KC173 568 C~2lVE 2016 03 17.58460 15 35 59.706 -12 44 53.66 24.5w 15KC173 568 C~2lVE 2016 04 03.52641 15 35 07.494 -12 40 42.27 24.7w 15KC173 568 C~2lVE 2016 04 08.57595 15 34 47.247 -12 39 18.14 24.9w 15KC173 568 C~2lVE 2016 04 29.46161 15 33 07.049 -12 33 15.24 24.1w 15KC173 568 C~2lVE 2016 05 04.39669 15 32 40.654 -12 31 50.96 24.1w 15KC173 568 C~2lVE 2016 05 30.48629 15 30 17.590 -12 25 27.67 24.1w 15KC173 568 C~2lVE 2016 07 05.34622 15 27 38.643 -12 22 04.98 24.8w 15KC173 568 C~2lVE 2017 06 26.27819 15 34 18.662 -13 13 30.90 24.0w 15KC173 568 C~2lVE 2017 08 20.27119 15 32 52.036 -13 20 43.48 24.5w 15KC173 568 C~2lVE 2017 08 23.25675 15 32 56.220 -13 21 41.11 24.1w 15KC173 568 C~2lVE 2017 08 24.24127 15 32 57.794 -13 22 00.66 24.4w 15KC173 568 C~2lVE
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 0.10 0.00 0.20
2 0.0001 -3.30 -0.10 -0.68 -0.14
3 0.0002 -6.11 0.17 -0.65 0.22
4 0.0030 -86.68 -0.21 -9.48 0.13
5 0.0055 -157.18 -0.01 -17.48 0.06
6 0.0630 -1600.64 0.01 -242.10 0.09
7 0.0631 -1602.97 0.02 -242.75 -0.07
8 0.1394 -2744.09 0.11 -640.81 -0.13
9 0.1395 -2744.59 -0.03 -641.00 -0.06
10 0.7399 11639.86 -0.13 -1743.80 -0.05
11 0.8055 11122.30 -0.18 -1597.27 -0.11
12 0.8111 11036.80 0.19 -1587.38 -0.08
13 0.8710 9795.92 0.11 -1521.14 -0.03
14 0.8711 9792.95 0.01 -1521.11 -0.04
15 0.8875 9366.89 0.00 -1517.28 -0.08
16 0.9665 7052.04 0.05 -1597.31 0.10
17 0.9666 7048.55 0.06 -1597.64 0.02
18 0.9668 7044.20 0.08 -1597.75 0.23
19 0.9668 7041.97 -0.05 -1598.22 -0.10
20 0.9772 6730.04 0.02 -1621.31 -0.12
21 0.9773 6726.73 0.13 -1621.57 -0.09
22 0.9775 6723.20 0.02 -1621.82 -0.05
23 0.9829 6562.09 -0.12 -1634.88 0.07
24 0.9857 6478.08 -0.05 -1642.27 -0.07
25 0.9887 6389.15 -0.11 -1650.16 -0.03
26 1.0540 4636.15 0.04 -1875.89 -0.05
27 1.0623 4447.92 0.02 -1911.12 0.00
28 1.1144 3506.42 -0.07 -2160.93 0.04
29 1.1361 3257.95 -0.08 -2275.95 0.05
30 1.6899 17251.23 0.11 -3502.37 -0.01
31 1.7965 17210.09 0.11 -3270.15 -0.00
32 1.8021 17140.19 -0.05 -3261.02 -0.05
33 1.8485 16332.46 -0.00 -3204.05 0.00
34 1.8623 16022.62 -0.22 -3195.15 0.02
35 1.9195 14503.23 0.01 -3204.62 0.10
36 1.9330 14105.98 0.03 -3218.53 0.07
37 2.0044 11972.55 -0.10 -3368.23 -0.14
38 2.1026 9661.12 0.01 -3756.43 -0.07
39 3.0771 16125.06 0.04 -5294.94 0.20
40 3.2276 15000.24 0.03 -6027.64 -0.04
41 3.2358 15074.12 0.12 -6068.60 -0.04
42 3.2385 15101.38 -0.11 -6081.94 0.05
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.
15KC173 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.151 39.164 39.137 ecceobj 0.130 0.131 0.130 incobj 17.098 17.098 17.098 qmin 32.370 32.337 32.392 qmax 46.767 46.794 46.808 amean 39.456 39.456 39.456 amin 39.133 39.145 39.127 amax 39.824 39.809 39.839 emean 0.154 0.154 0.154 emin 0.126 0.126 0.127 emax 0.176 0.177 0.176 imean 15.004 15.023 14.985 imin 14.149 14.156 14.151 imax 15.934 15.985 15.878 excite_mean 0.301 0.302 0.301 fracstop 1.000 1.000 1.000 cjmean 2.948 2.948 2.949 libcent 0 180.2 179.4 180.3 libamp 0 25.8 21.1 32.5 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 177.0 177.1 177.2 kozaiamp 180.0 180.0 180.0