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: 15OB193
# Created Sun Apr 27 01:10:31 2025
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 35.93d
# First observation: 2015/07/15
# Last observation: 2015/08/20
Preliminary a, adot, b, bdot, g, gdot:
0.000001 0.027589 -0.000002 -0.002058 0.025534 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 2.83 DOF: 15 RMS: 0.09
# Min/Max residuals: -0.24 0.19
# Exact a, adot, b, bdot, g, gdot:
1.597338E-05 2.473783E-02 -6.789200E-07 -1.802516E-03 2.481114E-02 -4.508149E-03
# Covariance matrix:
7.2148E-13 1.3382E-10 -1.8806E-13 -1.1815E-11 4.2635E-11 7.9267E-09
1.3382E-10 4.4333E-07 -3.7355E-10 -4.0104E-08 1.0490E-07 9.9817E-06
-1.8806E-13 -3.7355E-10 5.9872E-13 3.0338E-11 -9.0216E-11 -9.2713E-09
-1.1815E-11 -4.0104E-08 3.0338E-11 3.7194E-09 -9.4768E-09 -8.9606E-07
4.2635E-11 1.0490E-07 -9.0216E-11 -9.4768E-09 2.5082E-08 2.4830E-06
7.9267E-09 9.9817E-06 -9.2713E-09 -8.9606E-07 2.4830E-06 2.8214E-04
# lat0 lon0 xBary yBary zBary JD0
8.951231 -17.338434 0.778605 0.102040 -0.647166 2457219.066909
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 299.78607 +/- 28.244
Argument of Peri: 197.77233 +/- 39.038
Long of Asc Node: 226.75493 +/- 0.706
Inclination: 9.68658 +/- 0.056
Eccentricity: 0.20813737 +/- 0.6818
Semi-Major Axis: 43.85318651 +/- 10.8291
Time of Perihelion: 2474952.1755 +/- 5105.6
Perihelion: 34.72569982 +/- 31.1026
Aphelion: 52.98067320 +/- 32.6344
Period (y) 290.4089 +/- 107.57
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.39460903 +/- 0.2426
Ecliptic Y -12.80321368 +/- 0.0757
Ecliptic Z 6.27114569 +/- 0.0401
Ecliptic XDOT 0.00037170 +/- 0.0018
Ecliptic YDOT 0.00273666 +/- 0.0005
Ecliptic ZDOT -0.00027382 +/- 0.0003
# Distances at JD0 (AU)
Heliocenter to KBO 40.95601972 +/- 0.2287
Geocenter to KBO 40.30446938 +/- 0.2573
# Hcoef: 8.75
The following table shows the complete astrometric record for 15OB193. 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 (15OB193) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.56612 22 42 24.97 +01 28 12.2 24.9r 15OB193 T09 C~8nco 2015 07 15.61088 22 42 24.84 +01 28 12.1 25.3r 15OB193 T09 C~8nco 2015 07 21.46208 22 42 07.24 +01 27 19.6 24.7i 15OB193 T09 C~8nco 2015 07 21.49256 22 42 07.14 +01 27 19.3 24.7i 15OB193 T09 C~8nco 2015 07 21.50888 22 42 07.08 +01 27 19.1 24.9i 15OB193 T09 C~8nco 2015 07 21.58484 22 42 06.83 +01 27 18.3 24.8i 15OB193 T09 C~8nco 2015 07 21.61178 22 42 06.76 +01 27 18.1 25.2i 15OB193 T09 C~8nco 2015 08 20.45392 22 40 09.65 +01 18 18.7 24.3z 15OB193 T09 C~8nco 2015 08 20.48576 22 40 09.51 +01 18 17.8 23.8z 15OB193 T09 C~8nco 2015 08 20.49385 22 40 09.45 +01 18 17.5 24.4z 15OB193 T09 C~8nco
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 -0.04 0.00 -0.10
2 0.0001 -1.84 0.04 0.65 0.11
3 0.0161 -265.92 -0.00 52.33 -0.03
4 0.0162 -267.42 0.00 52.62 -0.00
5 0.0163 -268.33 -0.10 52.78 0.01
6 0.0165 -272.10 -0.10 53.46 0.02
7 0.0166 -273.15 0.19 53.68 -0.01
8 0.0983 -2102.60 0.11 221.99 0.08
9 0.0983 -2104.89 0.12 221.95 -0.06
10 0.0984 -2105.83 -0.24 222.02 -0.02
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.
15OB193 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