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: 15FH562 # Created Mon Jul 7 01:10:33 2025 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 57.81d # First observation: 2015/01/21 # Last observation: 2015/03/20 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.035745 0.000001 0.011232 0.028696 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 5.78 DOF: 17 RMS: 0.13 # Min/Max residuals: -0.26 0.27 # Exact a, adot, b, bdot, g, gdot: 1.353052E-05 2.497268E-02 6.986609E-06 1.115227E-02 2.692640E-02 8.108340E-03 # Covariance matrix: 1.8533E-12 2.3636E-09 3.9358E-14 5.8291E-12 3.6451E-10 -6.7483E-09 2.3636E-09 4.0994E-06 6.7889E-11 9.4922E-09 6.3010E-07 -1.2044E-05 3.9358E-14 6.7889E-11 4.8722E-13 -2.9061E-12 1.0577E-11 -1.5927E-10 5.8291E-12 9.4922E-09 -2.9061E-12 1.9578E-10 1.7628E-09 5.7934E-08 3.6451E-10 6.3010E-07 1.0577E-11 1.7628E-09 9.7482E-08 -1.6726E-06 -6.7483E-09 -1.2044E-05 -1.5927E-10 5.7934E-08 -1.6726E-06 8.5840E-05 # lat0 lon0 xBary yBary zBary JD0 -8.476567 151.925217 0.506745 -0.123836 -0.831995 2457044.071788 # Heliocentric elements and errors Epoch: 2457040.5000 = 2015/01/18 Mean Anomaly: 57.19604 +/- 20.509 Argument of Peri: 250.75003 +/- 18.605 Long of Asc Node: 169.28351 +/- 1.271 Inclination: 25.08614 +/- 1.506 Eccentricity: 0.28528004 +/- 0.3325 Semi-Major Axis: 41.47003809 +/- 7.0212 Time of Perihelion: 2441542.9332 +/- 3923.1 Perihelion: 29.63946412 +/- 14.6736 Aphelion: 53.30061205 +/- 16.4794 Period (y) 267.0606 +/- 67.82 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.91730514 +/- 0.3758 Ecliptic Y 18.13053283 +/- 0.2005 Ecliptic Z -5.47412571 +/- 0.0635 Ecliptic XDOT -0.00206583 +/- 0.0008 Ecliptic YDOT -0.00178337 +/- 0.0006 Ecliptic ZDOT 0.00100013 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 37.97671986 +/- 0.3396 Geocenter to KBO 37.13827910 +/- 0.4306 # Hcoef: 9.58
The following table shows the complete astrometric record for 15FH562. 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 (15FH562) followed by the observatory code and reference code for the source of the astrometry.
2015 01 21.57101 10 03 36.36 +02 51 40.4 25.3i 15FH562 T09 C~8vFY 2015 01 21.59912 10 03 36.21 +02 51 41.1 25.1i 15FH562 T09 C~8vFY 2015 01 21.62499 10 03 36.11 +02 51 42.1 25.6i 15FH562 T09 C~8vFY 2015 03 18.39076 09 59 09.31 +03 22 06.3 25.9r 15FH562 T09 C~8vFY 2015 03 18.41164 09 59 09.23 +03 22 07.0 25.4r 15FH562 T09 C~8vFY 2015 03 18.42974 09 59 09.15 +03 22 07.7 25.4r 15FH562 T09 C~8vFY 2015 03 18.44789 09 59 09.06 +03 22 08.3 25.2r 15FH562 T09 C~8vFY 2015 03 20.33757 09 59 01.16 +03 23 17.5 25.0i 15FH562 T09 C~8vFY 2015 03 20.35412 09 59 01.09 +03 23 18.0 24.9i 15FH562 T09 C~8vFY 2015 03 20.36873 09 59 01.01 +03 23 18.7 24.7i 15FH562 T09 C~8vFY 2015 03 20.38334 09 59 00.98 +03 23 19.2 24.7i 15FH562 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 0.23 0.00 -0.09
2 0.0001 -2.35 -0.15 -0.13 -0.18
3 0.0001 -4.10 -0.09 0.28 0.27
4 0.1528 -4386.86 -0.08 306.17 0.02
5 0.1529 -4388.23 0.09 306.40 0.01
6 0.1529 -4389.60 0.06 306.64 0.04
7 0.1530 -4391.07 -0.08 306.73 -0.08
8 0.1582 -4526.18 0.02 330.10 0.01
9 0.1582 -4527.34 0.05 330.20 -0.09
10 0.1582 -4528.70 -0.26 330.43 -0.03
11 0.1583 -4529.30 0.20 330.75 0.11
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.
15FH562 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