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: 03HO57
# Created Wed Dec 25 02:08:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 15.94y
# First observation: 2003/04/26
# Last observation: 2019/04/05
# Chi-squared of fit: 52.29 DOF: 24 RMS: 0.33
# Min/Max residuals: -0.57 0.68
# Exact a, adot, b, bdot, g, gdot:
1.738684E-05 2.721000E-02 -3.397865E-06 -1.572657E-03 2.571078E-02 -2.075320E-03
# Covariance matrix:
4.7593E-13 -1.8816E-14 3.7826E-15 -1.8763E-15 9.6840E-13 7.1053E-14
-1.8816E-14 2.8192E-14 1.3114E-15 -1.6125E-15 7.5609E-14 6.7720E-14
3.7826E-15 1.3114E-15 2.3711E-13 -1.8753E-14 1.9228E-14 4.5864E-15
-1.8763E-15 -1.6125E-15 -1.8753E-14 2.5787E-15 -1.2391E-14 -4.8089E-15
9.6840E-13 7.5609E-14 1.9228E-14 -1.2391E-14 4.1511E-12 4.8899E-13
7.1053E-14 6.7720E-14 4.5864E-15 -4.8089E-15 4.8899E-13 1.9964E-13
# lat0 lon0 xBary yBary zBary JD0
1.081854 -161.855794 -0.307587 0.018101 -0.958737 2452755.848563
# Heliocentric elements and errors
Epoch: 2452756.5000 = 2003/04/27
Mean Anomaly: 339.24307 +/- 0.029
Argument of Peri: 190.83456 +/- 0.038
Long of Asc Node: 36.23980 +/- 0.000
Inclination: 3.47595 +/- 0.000
Eccentricity: 0.15693257 +/- 0.0002
Semi-Major Axis: 46.49516422 +/- 0.0181
Time of Perihelion: 2459433.3355 +/- 64.6
Perihelion: 39.19855875 +/- 0.0191
Aphelion: 53.79176969 +/- 0.0239
Period (y) 317.0443 +/- 0.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.77097420 +/- 0.0029
Ecliptic Y -12.69715455 +/- 0.0009
Ecliptic Z 0.73424277 +/- 0.0001
Ecliptic XDOT 0.00110311 +/- 0.0000
Ecliptic YDOT -0.00269052 +/- 0.0000
Ecliptic ZDOT -0.00017142 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.85482096 +/- 0.0028
Geocenter to KBO 38.89427622 +/- 0.0031
# Hcoef: 7.98
The following table shows the complete astrometric record for 03HO57. 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 (03HO57) followed by the observatory code and reference code for the source of the astrometry.
2003 04 26.34782 13 08 35.65 -06 06 54.5 23.9R 03HO57 568 Cq9883 2003 04 26.39267 13 08 35.43 -06 06 53.2 23.4R 03HO57 568 Cq9883 2003 04 26.43503 13 08 35.24 -06 06 52.1 23.6R 03HO57 568 Cq9883 2003 04 27.40207 13 08 30.99 -06 06 28.3 03HO57 568 Cq9883 2003 05 30.31045 13 06 30.54 -05 55 13.1 03HO57 568 Cq9883 2003 05 30.36366 13 06 30.40 -05 55 12.5 03HO57 568 Cq9883 2003 05 30.42279 13 06 30.24 -05 55 11.9 03HO57 568 Cq9883 2014 04 23.21831 14 13 31.02 -13 22 28.3 03HO57 W84 C~2i4D 2014 04 24.24018 14 13 25.92 -13 22 03.2 24.9V 03HO57 W84 C~2i4D 2014 04 26.17439 14 13 16.34 -13 21 15.9 03HO57 W84 C~2i4D 2014 04 30.09698 14 12 56.93 -13 19 40.2 23.7V 03HO57 W84 C~2fbn 2014 05 01.01539 14 12 52.42 -13 19 17.8 03HO57 W84 C~2fbn 2014 05 01.08462 14 12 52.06 -13 19 16.1 03HO57 W84 C~2fbn 2019 04 05.407030 14 46 01.752 -16 29 44.59 22.9G 03HO57 G37 C~34bY 2019 04 05.455920 14 46 01.516 -16 29 43.63 03HO57 G37 C~34bY
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 0.07 0.00 0.51
2 0.0001 0.00 -0.17 0.00 0.65
3 0.0002 0.00 -0.12 0.00 0.66
4 0.0029 0.00 0.68 0.00 -0.49
5 0.0930 0.00 -0.18 0.00 -0.20
6 0.0931 0.00 -0.10 0.00 -0.34
7 0.0933 0.00 -0.10 0.00 -0.57
8 10.9921 0.00 0.48 0.00 -0.17
9 10.9949 0.00 -0.15 0.00 -0.02
10 11.0002 0.00 -0.23 0.00 0.00
11 11.0109 0.00 -0.25 0.00 -0.18
12 11.0135 0.00 0.03 0.00 -0.20
13 11.0137 0.00 -0.19 0.00 -0.17
14 15.9427 0.00 0.26 0.00 0.23
15 15.9428 0.00 -0.07 0.00 0.31
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.
03HO57 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.016 46.016 46.016 ecceobj 0.150 0.150 0.150 incobj 3.488 3.488 3.488 qmin 38.592 38.602 38.594 qmax 54.512 54.522 54.561 amean 46.386 46.386 46.385 amin 45.986 45.986 45.991 amax 46.839 46.841 46.836 emean 0.151 0.151 0.151 emin 0.138 0.138 0.138 emax 0.165 0.165 0.165 imean 2.971 2.971 2.971 imin 2.399 2.399 2.399 imax 3.532 3.532 3.534 excite_mean 0.160 0.160 0.160 fracstop 1.000 1.000 1.000 cjmean 3.099 3.099 3.099 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 189.5 189.5 189.6 kozaiamp 179.9 180.0 180.0