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: 15OC192
# Created Mon Apr 28 01:10:31 2025
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 8.04d
# First observation: 2015/07/15
# Last observation: 2015/07/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.024016 0.000000 -0.004203 0.024587 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 4.18 DOF: 15 RMS: 0.11
# Min/Max residuals: -0.24 0.27
# Exact a, adot, b, bdot, g, gdot:
1.436172E-05 2.234711E-02 -2.448256E-06 -4.077140E-03 2.407873E-02 5.829652E-03
# Covariance matrix:
6.7500E-12 9.9771E-09 -4.7788E-13 -7.1254E-10 2.7800E-09 -1.3074E-08
9.9771E-09 1.5592E-05 -7.4547E-10 -1.1115E-06 4.3367E-06 -2.0714E-05
-4.7788E-13 -7.4547E-10 3.7925E-13 3.6343E-11 -2.0738E-10 9.5485E-10
-7.1254E-10 -1.1115E-06 3.6343E-11 8.0684E-08 -3.0920E-07 1.4491E-06
2.7800E-09 4.3367E-06 -2.0738E-10 -3.0920E-07 1.2064E-06 -5.5553E-06
-1.3074E-08 -2.0714E-05 9.5485E-10 1.4491E-06 -5.5553E-06 5.9397E-04
# lat0 lon0 xBary yBary zBary JD0
2.907495 -8.955403 0.865704 0.027230 -0.534110 2457219.077659
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 75.35167 +/- 131.340
Argument of Peri: 62.45458 +/- 69.328
Long of Asc Node: 185.35196 +/- 1.502
Inclination: 10.63301 +/- 1.023
Eccentricity: 0.22923858 +/- 1.0032
Semi-Major Axis: 42.32196725 +/- 21.6611
Time of Perihelion: 2436161.2026 +/- 32939.0
Perihelion: 32.62013939 +/- 45.6231
Aphelion: 52.02379512 +/- 50.1169
Period (y) 275.3322 +/- 211.38
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.36151245 +/- 1.8689
Ecliptic Y -7.39464160 +/- 0.2946
Ecliptic Z 2.10652059 +/- 0.0961
Ecliptic XDOT 0.00107042 +/- 0.0027
Ecliptic YDOT 0.00239699 +/- 0.0006
Ecliptic ZDOT -0.00042931 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 42.07009467 +/- 1.8382
Geocenter to KBO 41.53042637 +/- 1.8944
# Hcoef: 8.54
The following table shows the complete astrometric record for 15OC192. 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 (15OC192) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.57687 23 22 30.88 -00 52 36.5 24.9r 15OC192 T09 C~8ncm 2015 07 15.58725 23 22 30.87 -00 52 36.5 25.0r 15OC192 T09 C~8ncm 2015 07 15.59767 23 22 30.82 -00 52 36.8 25.0r 15OC192 T09 C~8ncm 2015 07 15.60812 23 22 30.80 -00 52 36.8 25.1r 15OC192 T09 C~8ncm 2015 07 22.55368 23 22 15.35 -00 54 07.0 23.9z 15OC192 T09 C~8ncm 2015 07 22.59732 23 22 15.24 -00 54 07.5 24.0z 15OC192 T09 C~8ncm 2015 07 22.61179 23 22 15.21 -00 54 08.0 24.7z 15OC192 T09 C~8ncm 2015 07 23.56927 23 22 12.80 -00 54 22.1 25.0y 15OC192 T09 C~8ncm 2015 07 23.59843 23 22 12.72 -00 54 22.6 24.7y 15OC192 T09 C~8ncm 2015 07 23.61304 23 22 12.69 -00 54 22.6 24.5y 15OC192 T09 C~8ncm
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 0.06 0.00 -0.05
2 0.0000 -0.14 0.27 0.06 -0.01
3 0.0001 -0.95 -0.20 0.08 -0.01
4 0.0001 -1.22 -0.13 0.20 0.09
5 0.0191 -249.75 -0.04 8.31 -0.06
6 0.0192 -251.46 0.04 8.50 0.06
7 0.0193 -252.07 0.02 8.22 -0.24
8 0.0219 -290.85 -0.03 9.45 0.04
9 0.0220 -292.15 -0.10 9.47 0.01
10 0.0220 -292.56 0.11 9.64 0.16
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.
15OC192 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