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: 15OH193
# Created Thu May 1 01:10:34 2025
# Orbit generated from Bernstein formalism
# Fitting 15 observations of 15
# Arc: 35.94d
# First observation: 2015/07/15
# Last observation: 2015/08/20
Preliminary a, adot, b, bdot, g, gdot:
-0.000001 0.024859 -0.000000 -0.009687 0.025386 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 6.36 DOF: 25 RMS: 0.12
# Min/Max residuals: -0.25 0.22
# Exact a, adot, b, bdot, g, gdot:
1.332011E-05 2.195219E-02 -5.204380E-06 -9.381838E-03 2.466185E-02 -1.417904E-03
# Covariance matrix:
8.1393E-13 8.0922E-10 -3.5256E-13 -8.4586E-11 2.0085E-10 2.2501E-08
8.0922E-10 1.2682E-06 -5.3760E-10 -1.2976E-07 3.0701E-07 3.1832E-05
-3.5256E-13 -5.3760E-10 4.0126E-13 5.3130E-11 -1.3046E-10 -1.3646E-08
-8.4586E-11 -1.2976E-07 5.3130E-11 1.3349E-08 -3.1471E-08 -3.2847E-06
2.0085E-10 3.0701E-07 -1.3046E-10 -3.1471E-08 7.4487E-08 7.7844E-06
2.2501E-08 3.1832E-05 -1.3646E-08 -3.2847E-06 7.7844E-06 8.3645E-04
# lat0 lon0 xBary yBary zBary JD0
8.061036 -17.950256 0.772094 0.093045 -0.656269 2457219.019919
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 257.47427 +/- 254.335
Argument of Peri: 271.57241 +/- 243.368
Long of Asc Node: 178.90511 +/- 1.176
Inclination: 24.33541 +/- 1.381
Eccentricity: 0.07919805 +/- 1.1318
Semi-Major Axis: 40.28485502 +/- 3.8634
Time of Perihelion: 2483808.0430 +/- 65869.4
Perihelion: 37.09437293 +/- 45.7322
Aphelion: 43.47533711 +/- 45.7839
Period (y) 255.6942 +/- 36.78
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.58294151 +/- 0.4227
Ecliptic Y -13.31177723 +/- 0.1370
Ecliptic Z 5.68587331 +/- 0.0629
Ecliptic XDOT 0.00073947 +/- 0.0031
Ecliptic YDOT 0.00231515 +/- 0.0009
Ecliptic ZDOT -0.00105325 +/- 0.0004
# Distances at JD0 (AU)
Heliocenter to KBO 41.20893039 +/- 0.3983
Geocenter to KBO 40.54845988 +/- 0.4487
# Hcoef: 9.13
The following table shows the complete astrometric record for 15OH193. 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 (15OH193) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.51913 22 41 31.58 +00 25 00.9 25.6r 15OH193 T09 C~8nco 2015 07 15.52981 22 41 31.53 +00 25 00.9 25.4r 15OH193 T09 C~8nco 2015 07 15.54692 22 41 31.49 +00 25 00.4 25.0r 15OH193 T09 C~8nco 2015 07 15.55977 22 41 31.45 +00 25 00.6 25.4r 15OH193 T09 C~8nco 2015 07 15.56189 22 41 31.43 +00 25 00.6 25.8r 15OH193 T09 C~8nco 2015 07 21.44495 22 41 13.88 +00 23 34.6 25.5i 15OH193 T09 C~8nco 2015 07 21.47369 22 41 13.77 +00 23 34.3 25.2i 15OH193 T09 C~8nco 2015 07 21.50349 22 41 13.68 +00 23 33.6 24.8i 15OH193 T09 C~8nco 2015 07 21.59831 22 41 13.37 +00 23 32.2 25.3i 15OH193 T09 C~8nco 2015 07 21.60101 22 41 13.37 +00 23 32.2 25.2i 15OH193 T09 C~8nco 2015 08 20.41470 22 39 17.38 +00 11 57.3 24.8z 15OH193 T09 C~8nco 2015 08 20.42425 22 39 17.32 +00 11 56.9 24.9z 15OH193 T09 C~8nco 2015 08 20.43235 22 39 17.31 +00 11 56.9 24.9z 15OH193 T09 C~8ncp 2015 08 20.44045 22 39 17.26 +00 11 56.6 24.7z 15OH193 T09 C~8ncp 2015 08 20.45933 22 39 17.18 +00 11 55.9 24.5z 15OH193 T09 C~8ncp
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 0.16 0.00 -0.17
2 0.0000 -0.69 -0.06 0.28 0.07
3 0.0001 -1.44 -0.04 0.05 -0.24
4 0.0001 -1.92 0.06 0.46 0.12
5 0.0001 -2.20 -0.12 0.57 0.22
6 0.0162 -278.41 0.08 20.59 -0.10
7 0.0163 -280.05 -0.09 20.94 0.14
8 0.0164 -281.56 -0.07 20.80 -0.10
9 0.0166 -286.40 -0.03 21.26 0.03
10 0.0167 -286.40 0.11 21.26 0.02
11 0.0983 -2159.88 0.04 36.50 -0.01
12 0.0983 -2160.87 -0.25 36.47 -0.02
13 0.0983 -2161.00 0.21 36.53 0.05
14 0.0983 -2161.81 -0.00 36.53 0.07
15 0.0984 -2163.19 0.00 36.34 -0.09
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.
15OH193 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