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: 15KD176
# Created Sun Nov 24 02:10:21 2024
# Orbit generated from Bernstein formalism
# Fitting 39 observations of 39
# Arc: 2.99y
# First observation: 2014/05/30
# Last observation: 2017/05/25
Preliminary a, adot, b, bdot, g, gdot:
-0.000198 0.027134 0.000023 -0.004716 0.025208 0.000000
# Chi-squared of fit: 3.25 DOF: 72 RMS: 0.05
# Min/Max residuals: -0.13 0.12
# Exact a, adot, b, bdot, g, gdot:
1.654025E-05 2.693676E-02 -2.779924E-06 -4.697663E-03 2.577767E-02 -1.943765E-03
# Covariance matrix:
1.6683E-13 -1.8952E-13 -9.2724E-15 2.1936E-14 -3.5423E-14 -1.5866E-12
-1.8952E-13 3.7216E-13 2.2757E-14 -5.4492E-14 7.1958E-14 3.9406E-12
-9.2724E-15 2.2757E-14 1.1610E-13 -6.2893E-14 9.3059E-15 2.8245E-13
2.1936E-14 -5.4492E-14 -6.2893E-14 5.4600E-14 -1.5971E-14 -6.6457E-13
-3.5423E-14 7.1958E-14 9.3059E-15 -1.5971E-14 1.7385E-13 1.1621E-12
-1.5866E-12 3.9406E-12 2.8245E-13 -6.6457E-13 1.1621E-12 4.8072E-11
# lat0 lon0 xBary yBary zBary JD0
5.997368 -124.737431 -0.238461 0.103111 -0.980970 2456807.906448
# Heliocentric elements and errors
Epoch: 2456800.5000 = 2014/05/23
Mean Anomaly: 339.23165 +/- 0.071
Argument of Peri: 177.47933 +/- 0.101
Long of Asc Node: 85.75403 +/- 0.001
Inclination: 11.52774 +/- 0.000
Eccentricity: 0.15074881 +/- 0.0001
Semi-Major Axis: 46.10983932 +/- 0.0039
Time of Perihelion: 2463398.1349 +/- 22.7
Perihelion: 39.15883575 +/- 0.0067
Aphelion: 53.06084290 +/- 0.0074
Period (y) 313.1112 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.35146003 +/- 0.0004
Ecliptic Y -32.64974249 +/- 0.0005
Ecliptic Z 4.05318190 +/- 0.0001
Ecliptic XDOT 0.00243309 +/- 0.0000
Ecliptic YDOT -0.00150798 +/- 0.0000
Ecliptic ZDOT -0.00051765 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.77463681 +/- 0.0005
Geocenter to KBO 38.79326814 +/- 0.0006
# Hcoef: 7.40
The following table shows the complete astrometric record for 15KD176. 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 (15KD176) followed by the observatory code and reference code for the source of the astrometry.
2014 05 30.40567 15 37 34.686 -13 15 06.68 23.4r 15KD176 568 C~2nvj 2014 05 31.44364 15 37 29.593 -13 14 53.93 23.5r 15KD176 568 C~2nvj 2014 06 01.33220 15 37 25.251 -13 14 43.40 23.4r 15KD176 568 C~2nvj 2014 06 01.37504 15 37 25.036 -13 14 42.93 23.2r 15KD176 568 C~2nvj 2014 06 01.41793 15 37 24.822 -13 14 42.36 23.4r 15KD176 568 C~2nvj 2014 06 22.32930 15 35 51.140 -13 11 35.03 23.6r 15KD176 568 C~2nvj 2014 06 22.37222 15 35 50.970 -13 11 34.81 23.5r 15KD176 568 C~2nvj 2014 07 19.34581 15 34 29.458 -13 11 08.96 23.5r 15KD176 568 C~2nvk 2015 02 23.64017 15 48 47.066 -14 12 54.90 23.5r 15KD176 568 C~2nvk 2015 03 22.52231 15 48 23.673 -14 09 01.36 23.5r 15KD176 568 C~2nvk 2015 04 18.53999 15 46 55.316 -14 02 35.99 23.3r 15KD176 568 C~2nvk 2015 05 17.41261 15 44 37.779 -13 55 08.50 23.3r 15KD176 568 C~2nvk 2015 05 17.45472 15 44 37.559 -13 55 07.91 23.0r 15KD176 568 C~2nvk 2015 05 17.50638 15 44 37.292 -13 55 07.17 23.2r 15KD176 568 C~2nvk 2015 05 24.39782 15 44 02.276 -13 53 31.41 23.3r 15KD176 568 C~2nvk 2015 05 24.44391 15 44 02.041 -13 53 30.84 23.0r 15KD176 568 C~2nvk 2015 05 24.48500 15 44 01.824 -13 53 30.26 23.1r 15KD176 568 C~2nvk 2015 05 26.47305 15 43 51.770 -13 53 04.30 23.1r 15KD176 568 C~2nvk 2015 06 18.37201 15 42 03.004 -13 49 08.55 23.4r 15KD176 568 C~2nvk 2015 06 18.41299 15 42 02.824 -13 49 08.28 23.4r 15KD176 568 C~2nvk 2015 06 21.38764 15 41 50.249 -13 48 47.98 23.2r 15KD176 568 C~2nvk 2015 07 10.42338 15 40 42.960 -13 47 47.08 23.3r 15KD176 568 C~2nvk 2015 07 18.34809 15 40 22.953 -13 47 59.04 23.5r 15KD176 568 C~2nvk 2016 02 06.65340 15 54 13.257 -14 48 36.40 23.9w 15KD176 568 C~2nvk 2016 02 12.63894 15 54 26.120 -14 48 41.70 23.9w 15KD176 568 C~2nvk 2016 03 17.62205 15 54 28.367 -14 45 35.41 15KD176 568 C~2nvk 2016 04 03.58308 15 53 47.033 -14 42 13.52 23.6w 15KD176 568 C~2nvk 2016 04 08.63261 15 53 30.095 -14 41 04.25 23.8w 15KD176 568 C~2nvk 2016 04 09.57656 15 53 26.725 -14 40 50.91 23.6w 15KD176 568 C~2nvk 2016 04 29.52576 15 52 02.744 -14 35 55.72 23.5w 15KD176 568 C~2nvk 2016 05 04.49833 15 51 38.903 -14 34 41.07 23.4w 15KD176 568 C~2nvk 2016 05 30.44177 15 49 27.844 -14 28 47.54 23.2w 15KD176 568 C~2nvk 2016 07 04.32652 15 46 55.732 -14 24 31.96 23.6w 15KD176 568 C~2nvk 2016 07 05.39888 15 46 52.125 -14 24 29.82 23.8w 15KD176 568 C~2nvk 2017 03 30.58668 16 00 00.995 -15 18 38.60 23.9w 15KD176 568 C~2nvk 2017 05 21.54752 15 56 17.885 -15 06 53.88 23.3w 15KD176 568 C~2nvk 2017 05 21.56169 15 56 17.810 -15 06 53.79 23.4w 15KD176 568 C~2nvk 2017 05 24.52991 15 56 02.555 -15 06 16.37 23.2w 15KD176 568 C~2nvk 2017 05 25.53328 15 55 57.405 -15 06 03.96 23.5w 15KD176 568 C~2nvk
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 -0.00 0.00 -0.02
2 0.0028 -75.29 0.09 -4.92 0.10
3 0.0053 -139.39 -0.01 -9.45 -0.03
4 0.0054 -142.55 -0.04 -9.72 -0.07
5 0.0055 -145.73 -0.07 -9.90 -0.01
6 0.0628 -1519.63 -0.04 -147.57 0.04
7 0.0629 -1522.10 0.03 -147.94 0.03
8 0.1367 -2685.34 0.05 -402.82 -0.04
9 0.7371 10337.77 -0.02 -1151.72 -0.04
10 0.8107 9953.30 -0.03 -999.20 0.00
11 0.8847 8611.58 -0.07 -909.59 -0.12
12 0.9637 6557.47 0.01 -923.14 -0.03
13 0.9639 6554.21 -0.02 -923.28 -0.06
14 0.9640 6550.26 -0.01 -923.44 -0.06
15 0.9829 6031.48 0.04 -945.43 0.11
16 0.9830 6028.01 0.09 -945.65 0.07
17 0.9831 6024.80 0.01 -945.80 0.09
18 0.9885 5876.20 -0.02 -953.67 -0.02
19 1.0512 4279.07 0.01 -1084.43 -0.01
20 1.0514 4276.46 0.02 -1084.77 -0.04
21 1.0595 4093.42 -0.00 -1106.86 0.05
22 1.1116 3125.07 0.02 -1272.20 0.02
23 1.1333 2844.12 -0.06 -1350.85 0.01
24 1.6899 15448.70 0.03 -2209.22 -0.02
25 1.7063 15633.03 0.04 -2174.15 0.04
26 1.7994 15624.59 0.12 -1984.65 0.04
27 1.8458 14992.00 -0.06 -1916.52 -0.04
28 1.8596 14735.74 -0.01 -1901.94 -0.04
29 1.8622 14684.85 -0.00 -1899.49 0.02
30 1.9168 13425.13 -0.00 -1875.77 -0.01
31 1.9304 13069.62 -0.03 -1878.36 0.05
32 2.0015 11128.69 0.06 -1950.99 0.03
33 2.0970 8912.25 0.06 -2192.22 0.00
34 2.0999 8860.60 -0.13 -2201.84 -0.06
35 2.8342 20795.55 -0.06 -2905.56 0.11
36 2.9764 17461.36 -0.00 -2896.99 0.00
37 2.9765 17460.27 -0.00 -2897.13 -0.10
38 2.9846 17234.86 0.01 -2907.64 -0.04
39 2.9873 17158.82 0.04 -2911.42 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.
15KD176 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.831 45.842 45.820 ecceobj 0.148 0.148 0.148 incobj 11.528 11.528 11.528 qmin 38.501 38.491 38.485 qmax 54.299 54.328 54.244 amean 46.210 46.219 46.185 amin 45.810 45.832 45.775 amax 46.649 46.670 46.626 emean 0.150 0.150 0.150 emin 0.137 0.137 0.136 emax 0.164 0.164 0.164 imean 9.661 9.663 9.644 imin 9.195 9.198 9.185 imax 10.208 10.210 10.208 excite_mean 0.225 0.225 0.225 fracstop 1.000 1.000 1.000 cjmean 3.066 3.066 3.066 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 182.7 182.9 182.4 kozaiamp 179.9 180.0 180.0