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: 02PG153
# Created Fri Apr 19 01:10:49 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 5 observations of 5
# Arc: 2.33d
# First observation: 2002/08/13
# Last observation: 2002/08/15
# Chi-squared of fit: 28.35 DOF: 4 RMS: 0.42
# Min/Max residuals: -0.74 0.76
# Exact a, adot, b, bdot, g, gdot:
1.405626E-05 2.490746E-02 2.837980E-07 3.972907E-04 2.475231E-02 -2.365251E-05
# Covariance matrix:
5.4053E-11 6.1176E-07 -3.1785E-14 1.0647E-09 1.0087E-07 4.0927E-10
6.1176E-07 7.0260E-03 -3.6496E-10 1.2225E-05 1.1582E-03 -1.7281E-05
-3.1785E-14 -3.6496E-10 7.6393E-13 -1.3171E-10 -6.0165E-11 -7.3524E-12
1.0647E-09 1.2225E-05 -1.3171E-10 5.7855E-08 2.0153E-06 -3.7620E-09
1.0087E-07 1.1582E-03 -6.0165E-11 2.0153E-06 1.9094E-04 -1.4571E-06
4.0927E-10 -1.7281E-05 -7.3524E-12 -3.7620E-09 -1.4571E-06 1.0925E-02
# lat0 lon0 xBary yBary zBary JD0
0.511129 -50.511417 -0.183125 0.008893 -1.000171 2452499.518433
# Heliocentric elements and errors
Epoch: 2452500.5000 = 2002/08/14
Mean Anomaly: 2.40922 +/- 159.138
Argument of Peri: 25.79837 +/- 8.753
Long of Asc Node: 281.25588 +/- 1.745
Inclination: 1.04564 +/- 0.006
Eccentricity: 0.05625500 +/- 0.2060
Semi-Major Axis: 43.86161410 +/- 0.0347
Time of Perihelion: 2451790.4320 +/- 46902.5
Perihelion: 41.39417910 +/- 9.0348
Aphelion: 46.32904910 +/- 9.0349
Period (y) 290.4926 +/- 0.34
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 26.46801683 +/- 0.2514
Ecliptic Y -31.82757326 +/- 0.3051
Ecliptic Z 0.36040903 +/- 0.0035
Ecliptic XDOT 0.00211653 +/- 0.0010
Ecliptic YDOT 0.00175166 +/- 0.0012
Ecliptic ZDOT 0.00004413 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.39661939 +/- 0.2831
Geocenter to KBO 40.40030434 +/- 0.3954
# Hcoef: 9.11
The following table shows the complete astrometric record for 02PG153. 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 (02PG153) followed by the observatory code and reference code for the source of the astrometry.
2002 08 13.01769 20 47 08.41 -17 23 05.4 02PG153 807 Cg3360 2002 08 13.17629 20 47 07.58 -17 23 08.6 02PG153 807 Cg3360 2002 08 15.04597 20 46 58.77 -17 23 43.3 02PG153 807 Cg3360 2002 08 15.20558 20 46 57.96 -17 23 46.4 24.9R 02PG153 807 Cg3360 2002 08 15.34750 20 46 57.22 -17 23 49.0 02PG153 807 Cg3360
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 0.39 0.00 0.10
2 0.0004 0.00 -0.51 0.00 -0.11
3 0.0056 0.00 0.76 0.00 0.09
4 0.0060 0.00 0.15 0.00 -0.03
5 0.0064 0.00 -0.74 0.00 -0.03
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.
02PG153 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.153 44.153 44.153 ecceobj 0.062 0.062 0.062 incobj 1.042 1.042 1.042 qmin 40.740 40.740 40.741 qmax 47.734 47.742 47.719 amean 44.152 44.152 44.152 amin 43.798 43.798 43.798 amax 44.521 44.521 44.522 emean 0.058 0.058 0.058 emin 0.043 0.043 0.043 emax 0.073 0.073 0.073 imean 2.882 2.882 2.882 imin 2.205 2.205 2.205 imax 3.440 3.440 3.440 excite_mean 0.077 0.077 0.077 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 176.8 176.8 176.8 kozaiamp 180.0 180.0 180.0