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: 15OX190
# Created Tue Apr 1 01:10:30 2025
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 7.09d
# First observation: 2015/07/15
# Last observation: 2015/07/22
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.022101 0.000001 0.003272 0.024855 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 9.40 DOF: 23 RMS: 0.14
# Min/Max residuals: -0.24 0.38
# Exact a, adot, b, bdot, g, gdot:
1.442210E-05 2.262251E-02 2.551511E-06 3.174550E-03 2.493368E-02 -5.824024E-04
# Covariance matrix:
9.7811E-12 1.5174E-08 -1.6034E-12 -2.4357E-09 3.4207E-09 -1.0840E-08
1.5174E-08 2.4761E-05 -2.6119E-09 -3.9677E-06 5.5726E-06 -1.7134E-05
-1.6034E-12 -2.6119E-09 7.2648E-13 3.9304E-10 -5.8785E-10 1.8458E-09
-2.4357E-09 -3.9677E-06 3.9304E-10 6.3770E-07 -8.9303E-07 2.6799E-06
3.4207E-09 5.5726E-06 -5.8785E-10 -8.9303E-07 1.2541E-06 -4.0469E-06
-1.0840E-08 -1.7134E-05 1.8458E-09 2.6799E-06 -4.0469E-06 -5.2277E-04
# lat0 lon0 xBary yBary zBary JD0
9.464044 -19.874711 0.750309 0.113120 -0.678030 2457218.941809
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 200.21374 +/- 170.324
Argument of Peri: 213.62293 +/- 213.623
Long of Asc Node: 290.71152 +/- 13.157
Inclination: 12.36828 +/- 2.449
Eccentricity: 0.14352796 +/- 0.1435
Semi-Major Axis: 35.88322981 +/- 6.3185
Time of Perihelion: 2492058.0829 +/- 7574286.6
Perihelion: 30.73298291 +/- 7.4707
Aphelion: 41.03347670 +/- 8.8731
Period (y) 214.9540 +/- 56.78
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.59231907 +/- 1.6710
Ecliptic Y -14.38822127 +/- 0.6042
Ecliptic Z 6.59480192 +/- 0.2962
Ecliptic XDOT 0.00072899 +/- 0.0007
Ecliptic YDOT 0.00237076 +/- 0.0024
Ecliptic ZDOT 0.00033338 +/- 0.0003
# Distances at JD0 (AU)
Heliocenter to KBO 40.78841474 +/- 1.5555
Geocenter to KBO 40.10640184 +/- 1.8014
# Hcoef: 8.82
The following table shows the complete astrometric record for 15OX190. 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 (15OX190) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.44102 22 32 21.91 +01 00 03.8 25.6r 15OX190 T09 C~8ibn 2015 07 15.46726 22 32 21.82 +01 00 03.8 25.4r 15OX190 T09 C~8ibn 2015 07 15.48467 22 32 21.77 +01 00 03.8 25.1r 15OX190 T09 C~8ibn 2015 07 21.45179 22 32 01.81 +00 59 19.3 25.3i 15OX190 T09 C~8ibn 2015 07 21.48446 22 32 01.68 +00 59 18.6 24.9i 15OX190 T09 C~8ibn 2015 07 21.51429 22 32 01.58 +00 59 18.4 24.5i 15OX190 T09 C~8ibn 2015 07 21.54156 22 32 01.47 +00 59 18.4 25.0i 15OX190 T09 C~8ibn 2015 07 21.60639 22 32 01.24 +00 59 17.6 24.8i 15OX190 T09 C~8ibn 2015 07 22.41440 22 31 58.38 +00 59 10.0 24.4z 15OX190 T09 C~8ibn 2015 07 22.43553 22 31 58.30 +00 59 09.9 24.5z 15OX190 T09 C~8ibn 2015 07 22.43822 22 31 58.31 +00 59 10.2 24.3z 15OX190 T09 C~8ibn 2015 07 22.45439 22 31 58.23 +00 59 09.9 24.3z 15OX190 T09 C~8ibn 2015 07 22.47331 22 31 58.17 +00 59 09.5 24.5z 15OX190 T09 C~8ibn 2015 07 22.53350 22 31 57.94 +00 59 09.4 24.3z 15OX190 T09 C~8ibn
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 -0.02 0.00 -0.11
2 0.0001 -1.25 -0.03 0.51 0.06
3 0.0001 -1.95 0.09 0.79 0.12
4 0.0165 -296.21 0.17 71.52 0.07
5 0.0165 -298.28 -0.15 71.60 -0.24
6 0.0166 -299.74 -0.02 71.98 -0.21
7 0.0167 -301.27 -0.08 72.60 0.08
8 0.0169 -304.77 -0.10 73.14 -0.14
9 0.0191 -347.39 -0.08 82.15 -0.15
10 0.0191 -348.54 -0.08 82.50 -0.03
11 0.0192 -348.29 0.31 82.72 0.16
12 0.0192 -349.52 -0.03 82.90 0.14
13 0.0193 -350.50 0.02 82.86 -0.11
14 0.0194 -353.74 0.07 84.06 0.38
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.
15OX190 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0