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: 15KZ175
# Created Sun Dec 22 02:10:25 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 3.08y
# First observation: 2014/05/29
# Last observation: 2017/06/26
Preliminary a, adot, b, bdot, g, gdot:
-0.000014 0.013471 0.000006 -0.004219 0.018325 0.000000
# Chi-squared of fit: 14.39 DOF: 58 RMS: 0.12
# Min/Max residuals: -0.25 0.30
# Exact a, adot, b, bdot, g, gdot:
1.196519E-05 1.348392E-02 -3.792482E-06 -4.223425E-03 1.845343E-02 -1.300499E-03
# Covariance matrix:
2.0668E-13 -2.3739E-13 -1.9447E-14 4.7984E-14 -1.0429E-13 -4.4390E-12
-2.3739E-13 4.9633E-13 5.6227E-14 -1.3970E-13 2.8038E-13 1.2905E-11
-1.9447E-14 5.6227E-14 1.6492E-13 -1.1362E-13 4.0652E-14 1.7488E-12
4.7984E-14 -1.3970E-13 -1.1362E-13 1.2765E-13 -9.4769E-14 -4.3380E-12
-1.0429E-13 2.8038E-13 4.0652E-14 -9.4769E-14 3.3964E-13 8.8717E-12
-4.4390E-12 1.2905E-11 1.7488E-12 -4.3380E-12 8.8717E-12 4.0087E-10
# lat0 lon0 xBary yBary zBary JD0
6.931168 -128.170778 -0.279926 0.117739 -0.968065 2456806.855568
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 209.75993 +/- 0.324
Argument of Peri: 317.58936 +/- 0.321
Long of Asc Node: 72.77234 +/- 0.001
Inclination: 18.70237 +/- 0.001
Eccentricity: 0.19380620 +/- 0.0004
Semi-Major Axis: 46.92221270 +/- 0.0092
Time of Perihelion: 2505795.2377 +/- 104.7
Perihelion: 37.82839698 +/- 0.0211
Aphelion: 56.01602842 +/- 0.0226
Period (y) 321.4222 +/- 0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.62930396 +/- 0.0010
Ecliptic Y -43.22995070 +/- 0.0013
Ecliptic Z 6.53938798 +/- 0.0002
Ecliptic XDOT 0.00163916 +/- 0.0000
Ecliptic YDOT -0.00114885 +/- 0.0000
Ecliptic ZDOT -0.00064519 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 55.15906378 +/- 0.0012
Geocenter to KBO 54.19046280 +/- 0.0017
# Hcoef: 7.34
The following table shows the complete astrometric record for 15KZ175. 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 (15KZ175) followed by the observatory code and reference code for the source of the astrometry.
2014 05 29.35479 15 24 56.803 -11 31 13.49 24.7r 15KZ175 568 C~2nvj 2014 05 29.39367 15 24 56.667 -11 31 13.17 25.4r 15KZ175 568 C~2nvj 2014 05 29.43250 15 24 56.523 -11 31 12.53 25.1r 15KZ175 568 C~2nvj 2014 05 31.37870 15 24 49.400 -11 30 55.06 24.7r 15KZ175 568 C~2nvj 2014 06 21.35796 15 23 39.389 -11 28 36.47 24.9r 15KZ175 568 C~2nvj 2014 06 21.39681 15 23 39.281 -11 28 36.10 24.7r 15KZ175 568 C~2nvj 2015 02 23.62370 15 32 02.409 -12 14 43.74 24.7r 15KZ175 568 C~2nvj 2015 04 12.50040 15 30 37.253 -12 06 28.85 24.5r 15KZ175 568 C~2nvj 2015 04 12.54137 15 30 37.130 -12 06 27.97 24.5r 15KZ175 568 C~2nvj 2015 04 18.52716 15 30 17.720 -12 05 08.62 24.2r 15KZ175 568 C~2nvj 2015 05 24.38556 15 28 05.099 -11 57 45.79 24.4r 15KZ175 568 C~2nvj 2015 05 24.43166 15 28 04.918 -11 57 45.17 24.8r 15KZ175 568 C~2nvj 2015 05 24.47270 15 28 04.763 -11 57 44.82 24.4r 15KZ175 568 C~2nvj 2015 05 26.46061 15 27 57.273 -11 57 24.83 24.7r 15KZ175 568 C~2nvj 2015 06 18.35975 15 26 37.355 -11 54 30.09 25.0r 15KZ175 568 C~2nvj 2015 06 18.40072 15 26 37.220 -11 54 29.83 24.8r 15KZ175 568 C~2nvj 2015 06 21.37538 15 26 28.079 -11 54 16.00 25.1r 15KZ175 568 C~2nvj 2015 06 21.39181 15 26 28.045 -11 54 15.84 24.7r 15KZ175 568 C~2nvj 2015 07 10.41106 15 25 39.708 -11 53 44.95 25.3r 15KZ175 568 C~2nvj 2015 07 18.33583 15 25 25.529 -11 54 02.59 24.7r 15KZ175 568 C~2nvj 2015 08 11.33392 15 25 07.733 -11 56 47.08 24.7r 15KZ175 568 C~2nvj 2016 02 11.63450 15 34 46.555 -12 40 37.98 24.9w 15KZ175 568 C~2nvj 2016 03 15.56425 15 34 32.722 -12 37 12.54 24.9w 15KZ175 568 C~2nvj 2016 04 03.52641 15 33 51.375 -12 33 41.46 24.7w 15KZ175 568 C~2nvj 2016 04 08.57595 15 33 37.019 -12 32 38.60 24.8w 15KZ175 568 C~2nvj 2016 04 29.46161 15 32 26.954 -12 28 09.36 24.8w 15KZ175 568 C~2nvj 2016 05 04.39669 15 32 08.649 -12 27 06.98 25.0w 15KZ175 568 C~2nvj 2016 05 30.48629 15 30 29.555 -12 22 18.77 24.5w 15KZ175 568 C~2nvj 2016 07 03.36242 15 28 42.383 -12 19 18.91 24.4w 15KZ175 568 C~2nvj 2016 07 04.27794 15 28 40.180 -12 19 18.13 25.0w 15KZ175 568 C~2nvj 2016 07 05.34622 15 28 37.672 -12 19 17.73 24.6w 15KZ175 568 C~2nvj 2017 06 26.27819 15 31 51.948 -12 45 08.99 25.3w 15KZ175 568 C~2nvj
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 -0.08 0.00 0.04
2 0.0001 -2.02 0.06 -0.19 0.03
3 0.0002 -4.22 0.01 -0.10 0.30
4 0.0055 -109.95 0.07 -9.46 -0.15
5 0.0630 -1140.84 -0.02 -134.13 -0.21
6 0.0631 -1142.47 0.06 -134.17 0.03
7 0.7400 6701.64 0.12 -980.92 -0.06
8 0.8710 5368.61 0.17 -807.33 -0.25
9 0.8711 5366.65 0.19 -806.92 0.10
10 0.8875 5071.00 -0.16 -800.06 0.05
11 0.9857 3075.44 -0.02 -851.92 0.12
12 0.9858 3072.71 -0.11 -851.98 0.24
13 0.9859 3070.42 -0.06 -852.21 0.18
14 0.9914 2958.96 -0.14 -860.12 -0.04
15 1.0541 1779.34 0.10 -982.76 -0.17
16 1.0542 1777.36 0.03 -983.00 -0.14
17 1.0623 1643.98 -0.23 -1003.08 -0.08
18 1.0624 1643.46 -0.02 -1003.05 0.06
19 1.1145 948.74 0.01 -1150.45 0.02
20 1.1362 751.67 0.17 -1219.64 -0.04
21 1.2019 540.04 -0.15 -1444.34 -0.11
22 1.7064 9416.23 0.01 -1904.24 -0.04
23 1.7966 9169.49 0.08 -1753.76 0.10
24 1.8485 8529.86 -0.08 -1695.73 -0.06
25 1.8623 8310.32 -0.11 -1685.82 -0.05
26 1.9195 7248.05 -0.13 -1674.64 0.08
27 1.9330 6972.50 -0.03 -1679.65 0.04
28 2.0045 5493.08 -0.16 -1756.19 -0.01
29 2.0972 3926.01 0.06 -1969.41 0.11
30 2.0997 3894.53 0.01 -1976.65 0.07
31 2.1026 3858.81 0.22 -1985.36 -0.14
32 3.0771 7000.39 0.13 -2789.37 -0.03
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.
15KZ175 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.711 46.737 46.685 ecceobj 0.200 0.201 0.199 incobj 18.726 18.727 18.726 qmin 36.848 36.890 36.948 qmax 57.622 57.701 57.568 amean 47.027 47.053 47.002 amin 46.617 46.647 46.576 amax 47.530 47.574 47.512 emean 0.197 0.198 0.196 emin 0.182 0.183 0.181 emax 0.213 0.214 0.212 imean 17.177 17.182 17.172 imin 16.647 16.652 16.646 imax 17.679 17.664 17.674 excite_mean 0.355 0.355 0.354 fracstop 1.000 1.000 1.000 cjmean 2.981 2.981 2.982 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 173.9 174.1 173.8 kozaiamp 180.0 180.0 180.0