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: 15FH564
# Created Tue Sep 2 01:10:38 2025
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 7.01d
# First observation: 2015/03/18
# Last observation: 2015/03/25
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit: 3.56 DOF: 16 RMS: 0.11
# Min/Max residuals: -0.15 0.22
# Exact a, adot, b, bdot, g, gdot:
1.486728E-05 2.239438E-02 1.579226E-06 1.689649E-03 2.337612E-02 0.000000E+00
# Covariance matrix:
2.9869E-11 4.3299E-08 1.6300E-15 2.6820E-12 6.8763E-09 0.0000E+00
4.3299E-08 6.3504E-05 2.3911E-12 3.9312E-09 1.0080E-05 0.0000E+00
1.6300E-15 2.3911E-12 3.1563E-13 -2.1672E-11 3.7951E-13 0.0000E+00
2.6820E-12 3.9312E-09 -2.1672E-11 2.7840E-09 6.2400E-10 0.0000E+00
6.8763E-09 1.0080E-05 3.7951E-13 6.2400E-10 1.5999E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.6809E-04
# lat0 lon0 xBary yBary zBary JD0
0.011435 178.787192 0.024248 0.000323 -0.991864 2457100.012918
# Heliocentric elements and errors
Epoch: 2457100.5000 = 2015/03/19
Mean Anomaly: 1.39946 +/- 64.806
Argument of Peri: 358.67132 +/- 131.267
Long of Asc Node: 178.60591 +/- 0.055
Inclination: 4.30715 +/- 1.529
Eccentricity: 0.02800818 +/- 0.5606
Semi-Major Axis: 45.03464213 +/- 23.5887
Time of Perihelion: 2456671.3828 +/- 351032.7
Perihelion: 43.77330368 +/- 34.1025
Aphelion: 46.29598057 +/- 35.0046
Period (y) 302.2235 +/- 237.45
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -43.76337971 +/- 2.3142
Ecliptic Y 0.95048486 +/- 0.0492
Ecliptic Z 0.00862491 +/- 0.0005
Ecliptic XDOT -0.00005889 +/- 0.0015
Ecliptic YDOT -0.00262805 +/- 0.0008
Ecliptic ZDOT 0.00019798 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.77370100 +/- 2.3137
Geocenter to KBO 42.77869727 +/- 2.3148
# Hcoef: 8.98
The following table shows the complete astrometric record for 15FH564. 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 (15FH564) followed by the observatory code and reference code for the source of the astrometry.
2015 03 18.51214 11 55 34.03 +00 29 34.4 26.2r 15FH564 T09 C~90HY 2015 03 18.54702 11 55 33.87 +00 29 35.4 25.1r 15FH564 T09 C~90HY 2015 03 20.42657 11 55 25.81 +00 30 30.2 24.7i 15FH564 T09 C~90HY 2015 03 20.46619 11 55 25.63 +00 30 31.2 24.7i 15FH564 T09 C~90HY 2015 03 20.50521 11 55 25.47 +00 30 32.2 24.9i 15FH564 T09 C~90HY 2015 03 20.54104 11 55 25.31 +00 30 33.2 24.7i 15FH564 T09 C~90HY 2015 03 20.55195 11 55 25.27 +00 30 33.7 25.1i 15FH564 T09 C~90HY 2015 03 25.46627 11 55 04.21 +00 32 55.7 25.8g 15FH564 T09 C~90HY 2015 03 25.48926 11 55 04.09 +00 32 56.2 26.0g 15FH564 T09 C~90HY 2015 03 25.52385 11 55 03.94 +00 32 57.3 25.6g 15FH564 T09 C~90HY
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 -0.09
2 0.0001 -2.60 -0.05 -0.04 -0.15
3 0.0052 -135.32 -0.09 2.16 0.22
4 0.0053 -138.19 -0.12 2.01 0.04
5 0.0055 -140.79 0.08 1.97 -0.01
6 0.0056 -143.39 0.04 1.93 -0.07
7 0.0056 -144.14 0.07 2.15 0.15
8 0.0190 -490.45 0.16 6.82 0.12
9 0.0191 -492.30 -0.06 6.56 -0.15
10 0.0192 -494.80 -0.10 6.67 -0.06
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.
15FH564 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