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: 15FP562 # Created Mon Jul 7 01:10:33 2025 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 7.09d # First observation: 2015/03/18 # Last observation: 2015/03/25 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 4.95 DOF: 18 RMS: 0.12 # Min/Max residuals: -0.24 0.21 # Exact a, adot, b, bdot, g, gdot: 1.341277E-05 1.890372E-02 -2.598153E-07 5.166174E-04 2.069245E-02 0.000000E+00 # Covariance matrix: 2.3957E-11 3.0778E-08 1.1326E-13 -1.4516E-11 4.8870E-09 0.0000E+00 3.0778E-08 4.0048E-05 1.4729E-10 -1.8877E-08 6.3550E-06 0.0000E+00 1.1326E-13 1.4729E-10 2.7620E-13 -1.7198E-11 2.3373E-11 0.0000E+00 -1.4516E-11 -1.8877E-08 -1.7198E-11 2.0735E-09 -2.9956E-09 0.0000E+00 4.8870E-09 6.3550E-06 2.3373E-11 -2.9956E-09 1.0085E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.1659E-04 # lat0 lon0 xBary yBary zBary JD0 -1.551464 179.002824 0.028900 -0.026721 -0.991369 2457099.960328 # Heliocentric elements and errors Epoch: 2457090.5000 = 2015/03/09 Mean Anomaly: 0.82600 +/- 281.451 Argument of Peri: 314.88274 +/- 347.740 Long of Asc Node: 223.12746 +/- 10.031 Inclination: 2.18161 +/- 0.395 Eccentricity: 0.04836248 +/- 0.5484 Semi-Major Axis: 51.82751786 +/- 27.4009 Time of Perihelion: 2456777.8070 +/- 242828.4 Perihelion: 49.32101031 +/- 38.5718 Aphelion: 54.33402541 +/- 40.4107 Period (y) 373.1202 +/- 295.90 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -49.29598333 +/- 2.3442 Ecliptic Y 0.88667089 +/- 0.0410 Ecliptic Z -1.30843922 +/- 0.0635 Ecliptic XDOT -0.00004880 +/- 0.0014 Ecliptic YDOT -0.00250654 +/- 0.0007 Ecliptic ZDOT 0.00006842 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 49.32131558 +/- 2.3430 Geocenter to KBO 48.32680495 +/- 2.3454 # Hcoef: 8.69
The following table shows the complete astrometric record for 15FP562. 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 (15FP562) followed by the observatory code and reference code for the source of the astrometry.
2015 03 18.45955 11 53 52.32 -01 01 36.6 25.6r 15FP562 T09 C~8vFY 2015 03 18.49690 11 53 52.15 -01 01 35.6 25.4r 15FP562 T09 C~8vFY 2015 03 18.56877 11 53 51.88 -01 01 33.8 25.1r 15FP562 T09 C~8vFY 2015 03 20.40205 11 53 44.82 -01 00 47.5 24.8i 15FP562 T09 C~8vFY 2015 03 20.44705 11 53 44.66 -01 00 46.4 25.0i 15FP562 T09 C~8vFY 2015 03 20.48579 11 53 44.49 -01 00 45.6 24.7i 15FP562 T09 C~8vFY 2015 03 20.52736 11 53 44.32 -01 00 44.4 24.9i 15FP562 T09 C~8vFY 2015 03 25.47420 11 53 25.34 -00 58 39.0 26.5g 15FP562 T09 C~8vFY 2015 03 25.50459 11 53 25.23 -00 58 38.0 26.7g 15FP562 T09 C~8vFY 2015 03 25.54542 11 53 25.06 -00 58 37.1 26.3g 15FP562 T09 C~8vFY 2015 03 25.54754 11 53 25.05 -00 58 36.9 26.3g 15FP562 T09 C~8vFY
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 0.21 0.00 0.14
2 0.0001 -2.74 -0.13 -0.10 0.05
3 0.0003 -7.17 0.02 -0.06 0.10
4 0.0053 -122.73 -0.09 0.30 -0.03
5 0.0054 -125.37 0.15 0.36 0.03
6 0.0055 -128.03 -0.03 0.08 -0.24
7 0.0057 -130.84 -0.18 0.17 -0.15
8 0.0192 -441.89 0.07 1.98 -0.10
9 0.0193 -443.81 0.09 2.24 0.16
10 0.0194 -446.50 -0.02 2.05 -0.04
11 0.0194 -446.72 -0.10 2.18 0.09
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.
15FP562 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