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: 15KZ173
# Created Fri Nov 22 02:10:23 2024
# Orbit generated from Bernstein formalism
# Fitting 34 observations of 34
# Arc: 3.16y
# First observation: 2014/05/29
# Last observation: 2017/07/28
Preliminary a, adot, b, bdot, g, gdot:
0.000410 0.037956 0.000155 0.013777 0.030330 0.000000
# Chi-squared of fit: 10.86 DOF: 62 RMS: 0.10
# Min/Max residuals: -0.24 0.21
# Exact a, adot, b, bdot, g, gdot:
1.931336E-05 3.923106E-02 7.681108E-06 1.423541E-02 3.120173E-02 8.987360E-03
# Covariance matrix:
1.9544E-13 -2.4180E-13 1.8354E-14 -5.3460E-14 -4.7268E-14 -1.6507E-12
-2.4180E-13 5.9409E-13 -6.2334E-14 1.8107E-13 1.4737E-13 5.6002E-12
1.8354E-14 -6.2334E-14 1.5831E-13 -1.1189E-13 -2.0184E-14 -6.7887E-13
-5.3460E-14 1.8107E-13 -1.1189E-13 1.4053E-13 6.3639E-14 1.9820E-12
-4.7268E-14 1.4737E-13 -2.0184E-14 6.3639E-14 1.8272E-13 1.8729E-12
-1.6507E-12 5.6002E-12 -6.7887E-13 1.9820E-12 1.8729E-12 6.1109E-11
# lat0 lon0 xBary yBary zBary JD0
6.428156 -129.244531 -0.298281 0.108625 -0.963641 2456806.863358
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 7.37763 +/- 0.005
Argument of Peri: 343.39419 +/- 0.021
Long of Asc Node: 214.61612 +/- 0.000
Inclination: 20.88015 +/- 0.000
Eccentricity: 0.59338423 +/- 0.0002
Semi-Major Axis: 75.91649443 +/- 0.0265
Time of Perihelion: 2451849.2230 +/- 2.4
Perihelion: 30.86884391 +/- 0.0173
Aphelion: 120.96414495 +/- 0.0443
Period (y) 661.4735 +/- 0.35
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -20.53186969 +/- 0.0003
Ecliptic Y -25.60305931 +/- 0.0003
Ecliptic Z 3.58847716 +/- 0.0001
Ecliptic XDOT 0.00225343 +/- 0.0000
Ecliptic YDOT -0.00268000 +/- 0.0000
Ecliptic ZDOT 0.00132967 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.01441333 +/- 0.0003
Geocenter to KBO 32.04950817 +/- 0.0004
# Hcoef: 9.50
The following table shows the complete astrometric record for 15KZ173. 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 (15KZ173) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.36258 15 20 12.755 -11 44 09.95 25.0r 15KZ173 568 C~2lVH 2014 05 29.40143 15 20 12.526 -11 44 08.91 24.6r 15KZ173 568 C~2lVH 2014 05 30.47018 15 20 06.812 -11 43 41.46 23.6r 15KZ173 568 C~2lVH 2014 05 31.38647 15 20 01.982 -11 43 18.44 25.0r 15KZ173 568 C~2lVI 2014 06 21.36572 15 18 22.578 -11 36 00.80 24.8r 15KZ173 568 C~2lVI 2014 06 21.40460 15 18 22.416 -11 36 00.21 24.6r 15KZ173 568 C~2lVI 2014 07 19.28215 15 17 04.126 -11 31 35.27 25.0r 15KZ173 568 C~2lVI 2015 03 21.64577 15 35 15.962 -12 05 09.07 23.2r 15KZ173 568 C~2lVI 2015 04 12.54547 15 33 59.956 -11 54 14.70 24.6r 15KZ173 568 C~2lVI 2015 04 18.52716 15 33 32.525 -11 51 06.43 25.1r 15KZ173 568 C~2lVI 2015 05 21.31423 15 30 36.461 -11 34 38.75 24.9r 15KZ173 568 C~2lVI 2015 05 21.35538 15 30 36.214 -11 34 37.73 24.6r 15KZ173 568 C~2lVI 2015 05 21.39649 15 30 35.979 -11 34 36.60 24.8r 15KZ173 568 C~2lVI 2015 05 22.47313 15 30 29.974 -11 34 07.50 24.4r 15KZ173 568 C~2lVI 2015 05 25.46359 15 30 13.408 -11 32 48.67 24.6r 15KZ173 568 C~2lVI 2015 06 20.35311 15 28 03.377 -11 23 37.23 25.0r 15KZ173 568 C~2lVI 2015 06 20.39396 15 28 03.194 -11 23 36.54 24.8r 15KZ173 568 C~2lVI 2015 06 23.41352 15 27 50.506 -11 22 50.20 24.6r 15KZ173 568 C~2lVI 2015 07 11.28721 15 26 50.764 -11 19 45.21 24.9r 15KZ173 568 C~2lVI 2015 07 18.35664 15 26 35.403 -11 19 15.28 25.0r 15KZ173 568 C~2lVI 2016 02 05.65108 15 44 17.057 -12 05 13.73 24.8w 15KZ173 568 C~2lVI 2016 02 11.66311 15 44 33.245 -12 03 58.23 24.9w 15KZ173 568 C~2lVI 2016 02 12.60253 15 44 35.400 -12 03 44.77 25.0w 15KZ173 568 C~2lVI 2016 03 15.60009 15 44 44.204 -11 52 40.62 24.9w 15KZ173 568 C~2lVI 2016 03 15.60912 15 44 44.180 -11 52 40.35 25.0w 15KZ173 568 C~2lVI 2016 03 17.61396 15 44 40.700 -11 51 47.19 25.1w 15KZ173 568 C~2lVI 2016 04 03.53046 15 43 54.784 -11 43 44.41 25.0w 15KZ173 568 C~2lVI 2016 04 08.58000 15 43 35.875 -11 41 11.73 25.5w 15KZ173 568 C~2lVI 2016 04 29.45756 15 41 58.704 -11 30 31.72 24.9w 15KZ173 568 C~2lVI 2016 05 04.39265 15 41 32.523 -11 28 04.29 24.8w 15KZ173 568 C~2lVI 2016 05 30.47009 15 39 08.591 -11 16 26.73 25.7w 15KZ173 568 C~2lVI 2016 07 04.30222 15 36 30.419 -11 07 06.29 25.0w 15KZ173 568 C~2lVI 2016 07 05.37053 15 36 26.887 -11 06 57.46 25.0w 15KZ173 568 C~2lVI 2017 07 28.30588 15 44 44.296 -10 52 06.47 25.0w 15KZ173 568 C~2lVI
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 -0.10
2 0.0001 -3.52 -0.13 0.14 -0.12
3 0.0030 -91.67 -0.17 5.10 0.09
4 0.0055 -166.15 0.12 9.10 0.16
5 0.0630 -1689.94 0.03 55.36 -0.02
6 0.0631 -1692.39 0.04 55.31 -0.07
7 0.1394 -2872.41 -0.01 13.06 -0.05
8 0.8112 13167.35 -0.08 2104.57 -0.12
9 0.8711 11921.46 0.08 2466.72 0.01
10 0.8875 11483.51 0.01 2550.47 0.11
11 0.9773 8727.01 0.11 2868.84 0.15
12 0.9774 8723.23 -0.06 2868.92 0.02
13 0.9775 8719.60 -0.08 2869.16 0.03
14 0.9805 8626.73 -0.04 2875.43 0.09
15 0.9886 8370.87 0.02 2891.27 0.02
16 1.0595 6379.49 -0.03 2948.02 -0.06
17 1.0596 6376.71 -0.08 2948.01 -0.04
18 1.0679 6184.28 0.02 2946.10 0.09
19 1.1168 5286.59 0.19 2904.44 -0.01
20 1.1362 5060.23 -0.07 2876.53 0.00
21 1.6900 20928.69 0.03 4016.21 0.11
22 1.7065 21144.01 -0.07 4146.53 -0.19
23 1.7091 21171.88 0.08 4167.21 -0.02
24 1.7967 21141.27 0.12 4846.93 -0.12
25 1.7967 21140.86 -0.00 4847.11 -0.11
26 1.8022 21078.06 -0.11 4886.87 -0.05
27 1.8485 20301.31 -0.16 5197.52 0.05
28 1.8623 19992.40 0.09 5280.16 0.09
29 1.9195 18439.84 0.07 5561.96 0.18
30 1.9330 18027.65 0.06 5613.02 -0.01
31 2.0044 15789.89 -0.14 5780.46 -0.24
32 2.0998 13383.07 0.21 5758.03 -0.04
33 2.1027 13330.26 -0.19 5753.89 0.11
34 3.1648 20280.70 0.00 8398.64 0.04
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.
15KZ173 quality flag:3 Type: 4:1EEE 4:1EEE 4:1EEE axisobj 74.752 74.842 74.662 ecceobj 0.587 0.587 0.586 incobj 20.925 20.925 20.924 qmin 29.713 29.712 29.257 qmax 125.098 125.136 125.835 amean 75.871 75.870 75.871 amin 74.621 74.528 74.550 amax 77.754 77.765 77.865 emean 0.594 0.594 0.600 emin 0.572 0.575 0.584 emax 0.609 0.610 0.616 imean 21.282 21.200 20.398 imin 20.314 20.277 19.440 imax 23.082 22.637 21.542 excite_mean 0.696 0.696 0.694 fracstop 1.000 1.000 1.000 cjmean 2.777 2.777 2.776 libcent 0 285.2 283.2 182.1 libamp 0 44.0 46.3 158.3 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 80.7 88.0 114.2 kozaiamp 180.0 180.0 180.0