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: 15OF193
# Created Mon Apr 28 01:10:31 2025
# Orbit generated from Bernstein formalism
# Fitting 16 observations of 16
# Arc: 35.98d
# First observation: 2015/07/15
# Last observation: 2015/08/20
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.029688 -0.000001 0.000495 0.026243 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 4.37 DOF: 27 RMS: 0.09
# Min/Max residuals: -0.14 0.22
# Exact a, adot, b, bdot, g, gdot:
1.668986E-05 2.701252E-02 8.343319E-07 7.014601E-04 2.556939E-02 4.893650E-03
# Covariance matrix:
3.2031E-13 1.0134E-10 -7.7393E-14 -7.5932E-12 2.8187E-11 4.1099E-09
1.0134E-10 2.5989E-07 -1.4442E-10 -2.0798E-08 6.1039E-08 5.6027E-06
-7.7393E-14 -1.4442E-10 2.5640E-13 9.4865E-12 -3.4658E-11 -3.4661E-09
-7.5932E-12 -2.0798E-08 9.4865E-12 1.7157E-09 -4.8608E-09 -4.3657E-07
2.8187E-11 6.1039E-08 -3.4658E-11 -4.8608E-09 1.4482E-08 1.3852E-06
4.1099E-09 5.6027E-06 -3.4661E-09 -4.3657E-07 1.3852E-06 1.5398E-04
# lat0 lon0 xBary yBary zBary JD0
8.335972 -17.752340 0.774379 0.095805 -0.653172 2457219.019919
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 36.06929 +/- 31.158
Argument of Peri: 23.54421 +/- 67.458
Long of Asc Node: 262.70017 +/- 0.521
Inclination: 8.36524 +/- 0.016
Eccentricity: 0.22202496 +/- 0.4498
Semi-Major Axis: 47.15642922 +/- 11.5252
Time of Perihelion: 2445359.7761 +/- 9269.5
Perihelion: 36.68652510 +/- 23.0291
Aphelion: 57.62633333 +/- 25.4619
Period (y) 323.8319 +/- 118.72
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.24284716 +/- 0.1734
Ecliptic Y -12.73701513 +/- 0.0555
Ecliptic Z 5.67004868 +/- 0.0267
Ecliptic XDOT 0.00136301 +/- 0.0013
Ecliptic YDOT 0.00259361 +/- 0.0004
Ecliptic ZDOT 0.00015034 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 39.76695451 +/- 0.1635
Geocenter to KBO 39.10926780 +/- 0.1841
# Hcoef: 9.26
The following table shows the complete astrometric record for 15OF193. 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 (15OF193) followed by the observatory code and reference code for the source of the astrometry.
2015 07 15.51913 22 41 50.11 +00 44 44.0 25.6r 15OF193 T09 C~8nco 2015 07 15.52981 22 41 50.07 +00 44 44.2 25.8r 15OF193 T09 C~8nco 2015 07 15.53404 22 41 50.06 +00 44 44.0 25.6r 15OF193 T09 C~8nco 2015 07 15.54692 22 41 50.03 +00 44 43.8 25.4r 15OF193 T09 C~8nco 2015 07 15.55977 22 41 49.99 +00 44 43.7 25.6r 15OF193 T09 C~8nco 2015 07 21.44495 22 41 31.80 +00 43 54.6 25.5i 15OF193 T09 C~8nco 2015 07 21.48177 22 41 31.67 +00 43 54.2 25.3i 15OF193 T09 C~8nco 2015 07 21.50349 22 41 31.59 +00 43 54.1 25.6i 15OF193 T09 C~8nco 2015 07 21.50888 22 41 31.58 +00 43 53.9 24.9i 15OF193 T09 C~8nco 2015 07 21.56865 22 41 31.37 +00 43 53.2 25.4i 15OF193 T09 C~8nco 2015 08 20.41812 22 39 31.12 +00 35 11.5 24.1z 15OF193 T09 C~8nco 2015 08 20.42695 22 39 31.09 +00 35 11.2 24.4z 15OF193 T09 C~8nco 2015 08 20.45933 22 39 30.93 +00 35 10.5 24.8z 15OF193 T09 C~8nco 2015 08 20.46888 22 39 30.89 +00 35 10.3 24.2z 15OF193 T09 C~8nco 2015 08 20.49385 22 39 30.79 +00 35 09.8 24.8z 15OF193 T09 C~8nco 2015 08 20.50193 22 39 30.74 +00 35 09.7 24.7z 15OF193 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 0.00 0.00 -0.08
2 0.0000 -0.48 -0.01 0.41 0.21
3 0.0000 -0.69 -0.04 0.28 0.04
4 0.0001 -1.19 0.04 0.27 -0.11
5 0.0001 -1.78 0.01 0.40 -0.12
6 0.0162 -272.87 0.11 58.33 0.00
7 0.0163 -274.83 0.02 58.70 0.01
8 0.0164 -275.97 -0.03 59.06 0.15
9 0.0164 -276.19 0.02 58.94 -0.03
10 0.0166 -279.37 -0.12 59.48 -0.07
11 0.0983 -2146.26 -0.13 260.15 0.01
12 0.0983 -2146.79 -0.01 260.04 -0.14
13 0.0984 -2149.28 -0.11 260.31 -0.01
14 0.0984 -2149.91 -0.04 260.35 -0.01
15 0.0985 -2151.48 0.22 260.45 -0.01
16 0.0985 -2152.22 0.08 260.64 0.15
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.
15OF193 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