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: 15KZ174
# Created Tue Apr 23 01:17:10 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 3.22y
# First observation: 2014/05/29
# Last observation: 2017/08/19
Preliminary a, adot, b, bdot, g, gdot:
0.000268 0.029441 0.000072 0.007275 0.027263 0.000000
# Chi-squared of fit: 5.82 DOF: 58 RMS: 0.08
# Min/Max residuals: -0.14 0.22
# Exact a, adot, b, bdot, g, gdot:
1.750147E-05 3.022096E-02 3.928956E-06 7.462005E-03 2.765169E-02 5.804054E-03
# Covariance matrix:
1.9297E-13 -2.3528E-13 1.3452E-14 -3.5104E-14 -4.9489E-14 -1.8967E-12
-2.3528E-13 4.9069E-13 -3.6149E-14 9.3274E-14 1.0175E-13 5.0626E-12
1.3452E-14 -3.6149E-14 1.3830E-13 -8.9811E-14 -9.7489E-15 -4.4264E-13
-3.5104E-14 9.3274E-14 -8.9811E-14 9.6961E-14 3.0022E-14 1.1515E-12
-4.9489E-14 1.0175E-13 -9.7489E-15 3.0022E-14 1.7152E-13 1.5222E-12
-1.8967E-12 5.0626E-12 -4.4264E-13 1.1515E-12 1.5222E-12 6.2291E-11
# lat0 lon0 xBary yBary zBary JD0
5.086599 -127.208267 -0.263376 0.086926 -0.975932 2456806.847808
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 27.93398 +/- 0.014
Argument of Peri: 328.89873 +/- 0.034
Long of Asc Node: 213.93671 +/- 0.001
Inclination: 14.72007 +/- 0.000
Eccentricity: 0.29828200 +/- 0.0003
Semi-Major Axis: 48.42662788 +/- 0.0094
Time of Perihelion: 2447249.3619 +/- 4.1
Perihelion: 33.98183659 +/- 0.0139
Aphelion: 62.87141917 +/- 0.0173
Period (y) 337.0036 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.16689599 +/- 0.0003
Ecliptic Y -29.62741285 +/- 0.0004
Ecliptic Z 3.20655945 +/- 0.0001
Ecliptic XDOT 0.00207136 +/- 0.0000
Ecliptic YDOT -0.00221680 +/- 0.0000
Ecliptic ZDOT 0.00078700 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.14077131 +/- 0.0004
Geocenter to KBO 36.16415595 +/- 0.0005
# Hcoef: 8.88
The following table shows the complete astrometric record for 15KZ174. 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 (15KZ174) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.34703 15 26 51.737 -13 32 43.04 25.2r 15KZ174 568 C~2lVL 2014 05 29.38590 15 26 51.543 -13 32 42.39 24.3r 15KZ174 568 C~2lVL 2014 05 30.45456 15 26 46.142 -13 32 20.00 25.4r 15KZ174 568 C~2lVL 2014 05 31.37090 15 26 41.547 -13 32 00.97 24.1r 15KZ174 568 C~2lVL 2014 06 21.35020 15 25 06.140 -13 25 55.49 24.9r 15KZ174 568 C~2lVL 2014 06 21.38905 15 25 05.984 -13 25 55.01 24.4r 15KZ174 568 C~2lVL 2014 07 19.26644 15 23 45.642 -13 21 58.09 24.5r 15KZ174 568 C~2lVL 2015 02 20.65667 15 39 36.509 -14 07 01.67 24.5r 15KZ174 568 C~2lVL 2015 03 19.57074 15 39 17.559 -14 00 12.07 25.3r 15KZ174 568 C~2lVL 2015 03 21.62951 15 39 13.021 -13 59 31.85 24.6r 15KZ174 568 C~2lVL 2015 04 12.48811 15 38 02.123 -13 51 30.35 23.6r 15KZ174 568 C~2lVL 2015 04 12.52910 15 38 01.968 -13 51 29.27 24.6r 15KZ174 568 C~2lVL 2015 04 18.51079 15 37 36.444 -13 49 05.92 24.6r 15KZ174 568 C~2lVL 2015 05 24.36911 15 34 36.301 -13 34 59.91 24.4r 15KZ174 568 C~2lVL 2015 05 24.41533 15 34 36.057 -13 34 58.98 24.0r 15KZ174 568 C~2lVL 2015 05 24.45620 15 34 35.845 -13 34 58.15 24.3r 15KZ174 568 C~2lVL 2015 05 26.44379 15 34 25.553 -13 34 15.84 24.4r 15KZ174 568 C~2lVL 2015 06 18.34328 15 32 35.721 -13 27 22.37 24.3r 15KZ174 568 C~2lVL 2015 06 18.38434 15 32 35.530 -13 27 21.74 24.8r 15KZ174 568 C~2lVL 2015 06 21.35896 15 32 23.078 -13 26 40.05 24.6r 15KZ174 568 C~2lVL 2015 07 10.39102 15 31 18.081 -13 23 29.32 24.8r 15KZ174 568 C~2lVL 2015 07 17.34619 15 31 01.718 -13 22 55.43 24.6r 15KZ174 568 C~2lVL 2015 07 18.31678 15 30 59.787 -13 22 52.18 24.5r 15KZ174 568 C~2lVL 2016 02 06.63721 15 46 13.855 -14 07 48.63 24.6w 15KZ174 568 C~2lVL 2016 03 15.63093 15 46 29.952 -14 00 09.57 25.5w 15KZ174 568 C~2lVL 2016 04 03.55474 15 45 42.378 -13 53 45.12 24.8w 15KZ174 568 C~2lVL 2016 04 08.60428 15 45 24.474 -13 51 51.71 24.9w 15KZ174 568 C~2lVL 2016 04 29.47374 15 43 53.293 -13 43 42.26 24.8w 15KZ174 568 C~2lVL 2016 05 04.40882 15 43 28.796 -13 41 46.07 24.8w 15KZ174 568 C~2lVL 2016 05 30.46201 15 41 14.006 -13 32 20.79 24.6w 15KZ174 568 C~2lVL 2017 03 30.57261 15 52 59.188 -13 53 36.65 24.6w 15KZ174 568 C~2lVM 2017 08 19.27489 15 44 48.324 -13 24 17.43 15KZ174 568 C~2lVM
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 0.07
2 0.0001 -2.90 0.09 -0.07 -0.07
3 0.0030 -84.76 0.08 2.13 0.02
4 0.0055 -154.39 -0.00 3.98 0.14
5 0.0630 -1593.25 -0.01 12.35 0.02
6 0.0631 -1595.58 0.03 12.25 -0.04
7 0.1394 -2790.06 -0.14 -51.21 -0.10
8 0.7319 11317.99 0.11 687.46 -0.10
9 0.8055 10952.80 -0.06 1021.35 -0.03
10 0.8112 10878.95 0.06 1044.96 -0.10
11 0.8710 9759.57 -0.10 1269.85 -0.09
12 0.8711 9757.11 0.10 1270.37 0.08
13 0.8875 9361.16 -0.14 1321.76 0.11
14 0.9857 6605.75 -0.05 1517.86 0.04
15 0.9858 6602.07 -0.03 1517.91 -0.02
16 0.9859 6598.87 0.04 1517.97 -0.05
17 0.9914 6442.87 0.01 1523.04 0.03
18 1.0541 4787.30 0.12 1538.38 0.08
19 1.0542 4784.44 -0.04 1538.32 0.07
20 1.0623 4597.99 0.04 1534.82 -0.09
21 1.1144 3631.29 0.06 1489.79 0.06
22 1.1335 3391.36 -0.01 1464.58 -0.09
23 1.1361 3363.23 -0.09 1460.87 -0.02
24 1.6928 16979.61 -0.07 1982.24 0.22
25 1.7968 17104.22 0.05 2484.39 0.01
26 1.8486 16337.28 -0.02 2701.14 -0.03
27 1.8624 16055.81 -0.09 2751.95 -0.05
28 1.9196 14642.83 -0.01 2923.14 -0.14
29 1.9331 14266.82 0.03 2953.77 -0.00
30 2.0044 12215.67 0.07 3046.99 0.04
31 2.8370 22590.63 0.02 4150.94 0.08
32 3.2250 15159.36 -0.00 4245.49 -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.
15KZ174 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 48.014 48.043 47.986 ecceobj 0.292 0.292 0.291 incobj 14.760 14.760 14.760 qmin 32.614 32.466 33.322 qmax 64.807 66.307 64.218 amean 48.259 48.574 48.420 amin 46.862 46.803 47.754 amax 49.124 50.126 49.078 emean 0.294 0.305 0.289 emin 0.253 0.269 0.268 emax 0.322 0.332 0.311 imean 15.038 14.552 15.481 imin 13.020 12.923 14.251 imax 16.451 16.429 16.489 excite_mean 0.393 0.395 0.394 fracstop 1.000 1.000 1.000 cjmean 2.961 2.961 2.961 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 177.7 176.2 173.4 kozaiamp 180.0 180.0 180.0