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: 15ML150
# Created Sun Nov 24 02:10:22 2024
# Orbit generated from Bernstein formalism
# Fitting 29 observations of 29
# Arc: 2.25y
# First observation: 2015/06/23
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000058 0.020207 0.000001 0.002158 0.022223 0.000000
# Chi-squared of fit: 10.82 DOF: 52 RMS: 0.11
# Min/Max residuals: -0.37 0.23
# Exact a, adot, b, bdot, g, gdot:
1.445057E-05 1.981224E-02 2.086832E-06 2.106436E-03 2.189729E-02 4.203275E-04
# Covariance matrix:
1.7296E-13 -1.2316E-15 -5.6753E-15 7.3091E-15 1.4236E-13 1.6695E-12
-1.2316E-15 4.6302E-13 -2.3462E-14 7.0302E-14 3.2698E-13 1.4224E-11
-5.6753E-15 -2.3462E-14 9.9804E-14 -7.9994E-14 -2.2875E-14 -9.4283E-13
7.3091E-15 7.0302E-14 -7.9994E-14 1.3005E-13 5.6579E-14 3.0485E-12
1.4236E-13 3.2698E-13 -2.2875E-14 5.6579E-14 3.9686E-13 1.1682E-11
1.6695E-12 1.4224E-11 -9.4283E-13 3.0485E-12 1.1682E-11 6.1239E-10
# lat0 lon0 xBary yBary zBary JD0
2.143230 7.085625 1.011973 -0.003421 0.093944 2457197.075148
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 182.71020 +/- 1.400
Argument of Peri: 196.85353 +/- 1.402
Long of Asc Node: 346.59106 +/- 0.003
Inclination: 6.49756 +/- 0.001
Eccentricity: 0.04824076 +/- 0.0001
Semi-Major Axis: 43.48600938 +/- 0.0030
Time of Perihelion: 2508773.1938 +/- 407.4
Perihelion: 41.38821131 +/- 0.0056
Aphelion: 45.58380745 +/- 0.0058
Period (y) 286.7692 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.31533567 +/- 0.0013
Ecliptic Y 4.61395382 +/- 0.0002
Ecliptic Z 1.70802156 +/- 0.0001
Ecliptic XDOT -0.00026569 +/- 0.0000
Ecliptic YDOT 0.00245726 +/- 0.0000
Ecliptic ZDOT 0.00026522 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.58163615 +/- 0.0013
Geocenter to KBO 45.66776092 +/- 0.0013
# Hcoef: 8.03
The following table shows the complete astrometric record for 15ML150. 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 (15ML150) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.57437 00 22 37.522 +04 46 50.94 24.5r 15ML150 568 C~2nvk 2015 07 14.57959 00 22 42.052 +04 48 53.27 23.3r 15ML150 568 C~2nvk 2015 07 19.55857 00 22 38.036 +04 48 48.92 24.6r 15ML150 568 C~2nvk 2015 08 13.46351 00 21 51.027 +04 45 26.28 24.6r 15ML150 568 C~2nvk 2015 08 13.50453 00 21 50.931 +04 45 25.69 24.2r 15ML150 568 C~2nvk 2015 08 13.51692 00 21 50.902 +04 45 25.73 23.7r 15ML150 568 C~2nvk 2015 08 13.55793 00 21 50.775 +04 45 24.98 23.8r 15ML150 568 C~2nvk 2015 08 13.61289 00 21 50.617 +04 45 24.11 24.8r 15ML150 568 C~2nvk 2015 09 07.54637 00 20 26.913 +04 37 42.21 25.2w 15ML150 568 C~2nvk 2015 09 09.37247 00 20 19.816 +04 37 00.71 24.9r 15ML150 568 C~2nvk 2015 09 09.41679 00 20 19.636 +04 36 59.72 24.7r 15ML150 568 C~2nvk 2015 09 09.45780 00 20 19.467 +04 36 58.75 25.0r 15ML150 568 C~2nvk 2015 09 10.48141 00 20 15.436 +04 36 35.13 25.0w 15ML150 568 C~2nvk 2015 10 08.32355 00 18 20.069 +04 24 54.16 24.9w 15ML150 568 C~2nvk 2015 10 08.37618 00 18 19.840 +04 24 52.55 25.1w 15ML150 568 C~2nvk 2015 10 09.29322 00 18 16.050 +04 24 28.92 24.8w 15ML150 568 C~2nvk 2015 11 10.40631 00 16 19.901 +04 11 52.07 25.6w 15ML150 568 C~2nvk 2015 12 08.21785 00 15 26.473 +04 05 25.86 25.2w 15ML150 568 C~2nvk 2016 01 01.28060 00 15 29.746 +04 04 59.67 25.1w 15ML150 568 C~2nvk 2016 09 05.51877 00 24 36.201 +05 12 30.12 25.3w 15ML150 568 C~2nvk 2016 09 07.45899 00 24 28.767 +05 11 47.34 25.0w 15ML150 568 C~2nvk 2016 09 07.50445 00 24 28.599 +05 11 46.39 25.2w 15ML150 568 C~2nvk 2016 09 26.53383 00 23 10.951 +05 04 05.52 24.7w 15ML150 568 C~2nvk 2016 10 30.31559 00 20 56.255 +04 49 52.40 23.8w 15ML150 568 C~2nvk 2016 10 30.36086 00 20 56.106 +04 49 51.50 24.2w 15ML150 568 C~2nvk 2016 11 03.26914 00 20 42.868 +04 48 23.42 25.3w 15ML150 568 C~2nvk 2016 11 03.32171 00 20 42.683 +04 48 22.32 24.9w 15ML150 568 C~2nvk 2017 09 16.53726 00 27 58.624 +05 42 38.44 24.9w 15ML150 568 C~2nvk 2017 09 22.49098 00 27 34.046 +05 40 12.56 24.7w 15ML150 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 -0.03 0.00 -0.12
2 0.0575 110.63 0.17 85.50 0.17
3 0.0711 53.79 -0.07 105.29 0.07
4 0.1393 -671.67 -0.17 197.67 0.09
5 0.1394 -673.22 0.07 197.69 -0.04
6 0.1395 -673.60 0.23 197.90 0.12
7 0.1396 -675.64 -0.01 197.97 0.03
8 0.1397 -678.16 -0.12 198.10 -0.04
9 0.2080 -2010.14 -0.09 270.38 0.08
10 0.2130 -2124.01 0.06 274.40 -0.06
11 0.2131 -2126.88 0.03 274.56 -0.02
12 0.2132 -2129.58 -0.05 274.67 -0.02
13 0.2160 -2194.28 0.06 276.92 -0.08
14 0.2923 -4056.37 0.10 318.86 0.05
15 0.2924 -4060.15 -0.10 318.74 -0.14
16 0.2949 -4121.58 -0.12 319.59 0.07
17 0.3828 -6017.76 -0.23 316.36 -0.37
18 0.4590 -6905.64 0.23 280.40 0.09
19 0.5249 -6871.12 0.07 236.84 0.08
20 1.2045 2237.88 -0.01 711.65 0.09
21 1.2098 2118.95 -0.04 716.27 0.01
22 1.2099 2116.27 0.14 716.39 0.01
23 1.2620 868.46 -0.08 752.15 -0.05
24 1.3545 -1317.75 -0.18 766.63 -0.03
25 1.3547 -1320.16 0.04 766.68 0.03
26 1.3654 -1536.74 0.10 764.33 -0.07
27 1.3655 -1539.72 0.01 764.42 0.03
28 2.2340 5730.28 0.08 1180.03 0.08
29 2.2503 5335.34 -0.07 1190.56 -0.07
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.
15ML150 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.890 43.900 43.879 ecceobj 0.038 0.038 0.039 incobj 6.466 6.467 6.466 qmin 40.598 40.313 40.619 qmax 46.928 47.409 46.890 amean 43.681 43.727 43.670 amin 43.341 43.350 43.324 amax 44.037 44.118 44.022 emean 0.048 0.050 0.048 emin 0.031 0.028 0.030 emax 0.067 0.076 0.066 imean 7.122 7.105 7.121 imin 6.387 6.386 6.383 imax 7.758 7.748 7.760 excite_mean 0.133 0.134 0.133 fracstop 1.000 1.000 1.000 cjmean 3.076 3.076 3.076 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 185.2 182.9 182.6 kozaiamp 179.9 179.9 180.0