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: 15OK194
# Created Wed May 21 01:10:34 2025
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 8.18d
# First observation: 2015/07/15
# Last observation: 2015/07/23
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.030294 0.000000 0.002391 0.026009 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 4.84 DOF: 19 RMS: 0.11
# Min/Max residuals: -0.24 0.25
# Exact a, adot, b, bdot, g, gdot:
1.738076E-05 2.730460E-02 2.019658E-06 2.793753E-03 2.528758E-02 1.471233E-03
# Covariance matrix:
2.4865E-12 3.7369E-09 -3.6248E-13 -5.2406E-10 8.5455E-10 5.0993E-09
3.7369E-09 6.5593E-06 -6.3279E-10 -9.1541E-07 1.4920E-06 7.7997E-06
-3.6248E-13 -6.3279E-10 3.9668E-13 7.0395E-11 -1.4401E-10 -8.5542E-10
-5.2406E-10 -9.1541E-07 7.0395E-11 1.2930E-07 -2.0826E-07 -1.0364E-06
8.5455E-10 1.4920E-06 -1.4401E-10 -2.0826E-07 3.3953E-07 1.9269E-06
5.0993E-09 7.7997E-06 -8.5542E-10 -1.0364E-06 1.9269E-06 4.1026E-04
# lat0 lon0 xBary yBary zBary JD0
8.115021 -19.092022 0.759662 0.095665 -0.670259 2457218.938919
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 7.73314 +/- 157.282
Argument of Peri: 41.35523 +/- 243.022
Long of Asc Node: 286.99906 +/- 5.960
Inclination: 9.97740 +/- 0.772
Eccentricity: 0.20121672 +/- 0.2690
Semi-Major Axis: 50.17036581 +/- 10.1290
Time of Perihelion: 2454422.3064 +/- 56702.1
Perihelion: 40.07524951 +/- 15.7352
Aphelion: 60.26548211 +/- 18.1707
Period (y) 355.3686 +/- 107.62
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.38379385 +/- 0.8525
Ecliptic Y -13.74411053 +/- 0.2951
Ecliptic Z 5.58235732 +/- 0.1286
Ecliptic XDOT 0.00107334 +/- 0.0021
Ecliptic YDOT 0.00274972 +/- 0.0007
Ecliptic ZDOT 0.00032199 +/- 0.0003
# Distances at JD0 (AU)
Heliocenter to KBO 40.21953915 +/- 0.7990
Geocenter to KBO 39.54510386 +/- 0.9112
# Hcoef: 8.99
The following table shows the complete astrometric record for 15OK194. 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 (15OK194) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.43813 22 37 15.43 +00 02 26.0 25.4r 15OK194 T09 C~8r6x 2015 07 15.46513 22 37 15.35 +00 02 25.8 25.4r 15OK194 T09 C~8r6x 2015 07 15.54268 22 37 15.12 +00 02 25.5 24.9r 15OK194 T09 C~8r6x 2015 07 15.56189 22 37 15.06 +00 02 25.3 24.9r 15OK194 T09 C~8r6x 2015 07 21.43097 22 36 56.57 +00 01 39.3 24.9i 15OK194 T09 C~8r6x 2015 07 21.44836 22 36 56.51 +00 01 39.0 24.7i 15OK194 T09 C~8r6x 2015 07 21.47095 22 36 56.45 +00 01 38.8 25.6i 15OK194 T09 C~8r6x 2015 07 21.50079 22 36 56.33 +00 01 38.5 25.2i 15OK194 T09 C~8r6x 2015 07 21.60101 22 36 56.01 +00 01 37.5 24.8i 15OK194 T09 C~8r6x 2015 07 23.50977 22 36 49.52 +00 01 18.3 24.3y 15OK194 T09 C~8r6x 2015 07 23.53441 22 36 49.43 +00 01 17.8 24.6y 15OK194 T09 C~8r6x 2015 07 23.62253 22 36 49.11 +00 01 17.0 24.0y 15OK194 T09 C~8r6x
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 -0.06
2 0.0001 -1.19 -0.05 0.27 -0.09
3 0.0003 -4.50 0.09 1.28 0.04
4 0.0003 -5.41 0.04 1.44 -0.02
5 0.0164 -279.71 -0.06 63.07 0.25
6 0.0165 -280.65 -0.12 63.13 0.12
7 0.0165 -281.56 0.12 63.28 0.04
8 0.0166 -283.34 -0.14 63.68 0.13
9 0.0169 -288.17 0.17 64.56 -0.05
10 0.0221 -385.60 0.11 83.36 -0.04
11 0.0222 -387.03 -0.02 83.40 -0.24
12 0.0224 -391.78 -0.07 84.46 -0.08
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.
15OK194 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