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: 02GQ32
# Created Thu Nov 21 02:08:20 2024
# Orbit generated from Bernstein formalism
# Fitting 5 observations of 5
# Arc: 4.30d
# First observation: 2002/04/07
# Last observation: 2002/04/11
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit: 0.51 DOF: 6 RMS: 0.06
# Min/Max residuals: -0.10 0.09
# Exact a, adot, b, bdot, g, gdot:
1.701765E-05 3.436716E-02 -2.087048E-06 -3.864624E-03 3.126948E-02 0.000000E+00
# Covariance matrix:
4.6918E-11 9.1830E-08 -1.1265E-14 -4.2325E-12 1.4718E-08 0.0000E+00
9.1830E-08 1.8199E-04 -2.2320E-11 -8.3814E-09 2.9151E-05 0.0000E+00
-1.1265E-14 -2.2320E-11 5.2941E-13 -4.9509E-11 -3.5753E-12 0.0000E+00
-4.2325E-12 -8.3814E-09 -4.9509E-11 1.0401E-08 -1.3426E-09 0.0000E+00
1.4718E-08 2.9151E-05 -3.5753E-12 -1.3426E-09 4.6696E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 4.0233E-04
# lat0 lon0 xBary yBary zBary JD0
0.309493 -155.944031 0.116102 0.005338 -0.996575 2452371.649543
# Heliocentric elements and errors
Epoch: 2452370.5000 = 2002/04/06
Mean Anomaly: 357.50946 +/- 166.117
Argument of Peri: 179.90529 +/- 233.035
Long of Asc Node: 26.51295 +/- 1.029
Inclination: 6.42314 +/- 2.502
Eccentricity: 0.02028343 +/- 0.5820
Semi-Major Axis: 33.65594151 +/- 17.7397
Time of Perihelion: 2452863.8806 +/- 318174.4
Perihelion: 32.97328348 +/- 26.1859
Aphelion: 34.33859954 +/- 26.6690
Period (y) 195.2544 +/- 154.37
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -30.15851185 +/- 2.0181
Ecliptic Y -13.33101162 +/- 0.9007
Ecliptic Z 0.17266214 +/- 0.0119
Ecliptic XDOT 0.00121655 +/- 0.0017
Ecliptic YDOT -0.00274984 +/- 0.0011
Ecliptic ZDOT -0.00033815 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 32.97395215 +/- 1.8814
Geocenter to KBO 31.98006668 +/- 2.2100
# Hcoef: 7.64
The following table shows the complete astrometric record for 02GQ32. 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 (02GQ32) followed by the observatory code and reference code for the source of the astrometry.
2002 04 07.14880 13 29 33.02 -09 02 37.2 22.1R 02GQ32 807 Cf5154 2002 04 07.21306 13 29 32.64 -09 02 35.2 02GQ32 807 Cf5154 2002 04 08.18516 13 29 27.06 -09 02 04.7 02GQ32 807 Cf5154 2002 04 11.36519 13 29 08.75 -09 00 24.9 22.7R 02GQ32 568 Cf5154 2002 04 11.44626 13 29 08.28 -09 00 22.2 02GQ32 568 Cf5154
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 0.03
2 0.0002 -5.97 0.00 -0.21 -0.01
3 0.0028 -94.05 -0.10 -2.25 -0.02
4 0.0115 -383.00 -0.01 -9.27 -0.08
5 0.0118 -390.47 0.03 -9.32 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.
02GQ32 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