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: 15FJ563
# Created Mon Jul 7 01:10:33 2025
# Orbit generated from Bernstein formalism
# Fitting 13 observations of 13
# Arc: 65.87d
# First observation: 2015/03/18
# Last observation: 2015/05/23
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.028085 -0.000002 -0.010005 0.025483 0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit: 4.51 DOF: 21 RMS: 0.10
# Min/Max residuals: -0.30 0.20
# Exact a, adot, b, bdot, g, gdot:
1.304334E-05 2.000522E-02 -6.854082E-06 -1.017960E-02 2.420724E-02 1.222127E-02
# Covariance matrix:
8.8108E-13 5.2432E-10 -9.2878E-14 9.5706E-12 8.6486E-11 -4.9062E-09
5.2432E-10 6.9927E-07 -1.5308E-10 1.5745E-08 1.0901E-07 -8.0902E-06
-9.2878E-14 -1.5308E-10 2.2204E-13 -4.7895E-12 -2.3528E-11 1.8580E-09
9.5706E-12 1.5745E-08 -4.7895E-12 3.9059E-10 2.4202E-09 -1.9104E-07
8.6486E-11 1.0901E-07 -2.3528E-11 2.4202E-09 1.7065E-08 -1.2434E-06
-4.9062E-09 -8.0902E-06 1.8580E-09 -1.9104E-07 -1.2434E-06 9.8206E-05
# lat0 lon0 xBary yBary zBary JD0
0.122619 178.292405 0.016140 0.002250 -0.992022 2457099.986728
# Heliocentric elements and errors
Epoch: 2457090.5000 = 2015/03/09
Mean Anomaly: 40.05815 +/- 33.911
Argument of Peri: 81.32044 +/- 1.920
Long of Asc Node: 358.50611 +/- 0.010
Inclination: 26.90083 +/- 1.001
Eccentricity: 0.50915757 +/- 0.4017
Semi-Major Axis: 52.85479254 +/- 26.9045
Time of Perihelion: 2441472.9329 +/- 5709.7
Perihelion: 25.94337477 +/- 25.0021
Aphelion: 79.76621030 +/- 45.8184
Period (y) 384.2685 +/- 293.40
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -42.28575245 +/- 0.2228
Ecliptic Y 1.27657152 +/- 0.0067
Ecliptic Z 0.08814195 +/- 0.0005
Ecliptic XDOT -0.00145492 +/- 0.0011
Ecliptic YDOT -0.00222610 +/- 0.0001
Ecliptic ZDOT -0.00114827 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.30510920 +/- 0.2227
Geocenter to KBO 41.30994804 +/- 0.2229
# Hcoef: 7.92
The following table shows the complete astrometric record for 15FJ563. 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 (15FJ563) followed by the observatory code and reference code for the source of the astrometry.
2015 03 18.48595 11 53 55.68 +00 47 30.0 23.8r 15FJ563 T09 C~8vFZ 2015 03 18.54702 11 53 55.39 +00 47 31.5 24.4r 15FJ563 T09 C~8vFZ 2015 03 20.43366 11 53 46.45 +00 48 17.9 23.8i 15FJ563 T09 C~8vFZ 2015 03 20.47173 11 53 46.27 +00 48 18.7 23.8i 15FJ563 T09 C~8vFZ 2015 03 25.46334 11 53 22.68 +00 50 20.7 24.6g 15FJ563 T09 C~8vFZ 2015 03 25.48926 11 53 22.55 +00 50 21.0 24.4g 15FJ563 T09 C~8vFZ 2015 03 25.49353 11 53 22.53 +00 50 21.2 24.3g 15FJ563 T09 C~8vFZ 2015 03 25.52385 11 53 22.39 +00 50 22.2 24.4g 15FJ563 T09 C~8vFZ 2015 03 25.54970 11 53 22.27 +00 50 22.9 24.4g 15FJ563 T09 C~8vFZ 2015 05 23.29761 11 49 53.36 +01 06 52.2 24.2z 15FJ563 T09 C~8vFZ 2015 05 23.30052 11 49 53.35 +01 06 52.0 24.2z 15FJ563 T09 C~8vFZ 2015 05 23.31799 11 49 53.31 +01 06 52.0 24.0z 15FJ563 T09 C~8vFZ 2015 05 23.35876 11 49 53.25 +01 06 52.3 24.4z 15FJ563 T09 C~8vFZ
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 0.01 0.00 0.04
2 0.0002 -4.59 0.06 -0.35 0.07
3 0.0053 -146.07 -0.09 -11.10 0.12
4 0.0054 -148.86 0.01 -11.44 0.02
5 0.0191 -522.02 -0.00 -40.18 0.03
6 0.0192 -523.92 0.05 -40.68 -0.30
7 0.0192 -524.28 0.01 -40.61 -0.21
8 0.0193 -526.60 -0.02 -40.53 0.06
9 0.0193 -528.53 -0.01 -40.60 0.14
10 0.1802 -3797.24 -0.01 -378.29 0.20
11 0.1802 -3797.30 0.01 -378.53 -0.03
12 0.1802 -3797.85 -0.07 -378.77 -0.16
13 0.1803 -3798.79 0.07 -378.85 0.01
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.
15FJ563 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