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 Sun Oct 19 01:10:50 2025 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 61.98d # First observation: 2015/01/17 # Last observation: 2015/03/20 Preliminary a, adot, b, bdot, g, gdot: -0.000002 0.026824 0.000002 0.011178 0.027234 0.000000 # Chi-squared of fit: 9.11 DOF: 22 RMS: 0.14 # Min/Max residuals: -0.23 0.32 # Exact a, adot, b, bdot, g, gdot: 1.377327E-05 2.520841E-02 7.570579E-06 1.114321E-02 2.693013E-02 4.477244E-03 # Covariance matrix: 4.8186E-13 1.5155E-10 6.9813E-14 5.4503E-12 3.3534E-11 2.1347E-09 1.5155E-10 4.6416E-07 2.0211E-10 7.9794E-09 8.3210E-08 1.7354E-06 6.9813E-14 2.0211E-10 3.4834E-13 1.9285E-12 3.6344E-11 7.8423E-10 5.4503E-12 7.9794E-09 1.9285E-12 1.9999E-10 1.5306E-09 5.5563E-08 3.3534E-11 8.3210E-08 3.6344E-11 1.5306E-09 1.5133E-08 3.6663E-07 2.1347E-09 1.7354E-06 7.8423E-10 5.5563E-08 3.6663E-07 2.0753E-05 # lat0 lon0 xBary yBary zBary JD0 -8.474759 152.003585 0.568777 -0.117776 -0.791600 2457039.901408 # Heliocentric elements and errors Epoch: 2457030.5000 = 2015/01/08 Mean Anomaly: 67.26987 +/- 16.961 Argument of Peri: 255.53022 +/- 10.087 Long of Asc Node: 169.41715 +/- 0.478 Inclination: 24.92883 +/- 0.560 Eccentricity: 0.15259265 +/- 0.1690 Semi-Major Axis: 39.40897675 +/- 2.9530 Time of Perihelion: 2440145.1805 +/- 3810.8 Perihelion: 33.39545662 +/- 7.1134 Aphelion: 45.42249688 +/- 7.4782 Period (y) 247.4007 +/- 27.81 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -32.87252815 +/- 0.1481 Ecliptic Y 18.11879796 +/- 0.0788 Ecliptic Z -5.47219980 +/- 0.0250 Ecliptic XDOT -0.00175184 +/- 0.0004 Ecliptic YDOT -0.00197854 +/- 0.0002 Ecliptic ZDOT 0.00105352 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 37.93203022 +/- 0.1338 Geocenter to KBO 37.13312524 +/- 0.1696 # Hcoef: 9.54
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 17.40063 10 03 53.95 +02 50 08.4 25.3i 15FH562 T09 C~91VO 2015 01 17.40524 10 03 53.91 +02 50 08.7 24.7i 15FH562 T09 C~91VO 2015 01 17.40983 10 03 53.90 +02 50 09.1 24.8i 15FH562 T09 C~91VO 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 0.21 0.00 -0.21
2 0.0000 -0.67 -0.15 0.07 -0.13
3 0.0000 -0.95 -0.13 0.39 0.20
4 0.0114 -279.05 0.26 -6.54 -0.04
5 0.0115 -281.40 -0.12 -6.67 -0.13
6 0.0116 -283.15 -0.06 -6.26 0.32
7 0.1642 -4666.11 -0.11 298.75 0.03
8 0.1643 -4667.47 0.06 298.99 0.03
9 0.1644 -4668.84 0.02 299.22 0.05
10 0.1644 -4670.31 -0.11 299.31 -0.07
11 0.1696 -4805.43 0.05 322.66 -0.00
12 0.1696 -4806.59 0.08 322.76 -0.10
13 0.1697 -4807.96 -0.23 322.99 -0.04
14 0.1697 -4808.56 0.23 323.30 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.
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