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: 02CV154
# Created Sun Dec 22 02:08:20 2024
# Orbit generated from Bernstein formalism
# Fitting 5 observations of 5
# Arc: 31.15d
# First observation: 2002/02/06
# Last observation: 2002/03/09
Preliminary a, adot, b, bdot, g, gdot:
-0.000001 0.031919 0.000002 0.004615 0.023172 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 18.73 DOF: 5 RMS: 0.34
# Min/Max residuals: -0.56 0.54
# Exact a, adot, b, bdot, g, gdot:
1.486817E-05 2.144867E-02 5.305191E-06 4.661452E-03 2.146810E-02 -3.636381E-04
# Covariance matrix:
1.3510E-11 1.8868E-08 -2.9357E-13 -9.2948E-11 3.0401E-09 1.0369E-08
1.8868E-08 2.7407E-05 -4.2551E-10 -1.3607E-07 4.4103E-06 1.2364E-05
-2.9357E-13 -4.2551E-10 5.0015E-13 -3.7868E-12 -6.8559E-11 -2.4752E-10
-9.2948E-11 -1.3607E-07 -3.7868E-12 8.8136E-10 -2.1773E-08 1.9243E-08
3.0401E-09 4.4103E-06 -6.8559E-11 -2.1773E-08 7.1017E-07 2.2916E-06
1.0369E-08 1.2364E-05 -2.4752E-10 1.9243E-08 2.2916E-06 2.0163E-04
# lat0 lon0 xBary yBary zBary JD0
2.591095 158.950882 0.357325 0.041332 -0.915189 2452311.859693
# Heliocentric elements and errors
Epoch: 2452310.5000 = 2002/02/05
Mean Anomaly: 356.65324 +/- 101.021
Argument of Peri: 17.72416 +/- 178.436
Long of Asc Node: 146.98376 +/- 2.807
Inclination: 12.51974 +/- 2.904
Eccentricity: 0.26201389 +/- 0.4318
Semi-Major Axis: 64.29059466 +/- 35.4811
Time of Perihelion: 2454060.9190 +/- 52815.9
Perihelion: 47.44556558 +/- 38.1595
Aphelion: 81.13562374 +/- 52.6836
Period (y) 515.5008 +/- 426.75
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -44.15375932 +/- 1.7047
Ecliptic Y 17.38066140 +/- 0.6562
Ecliptic Z 2.10606612 +/- 0.0827
Ecliptic XDOT -0.00092264 +/- 0.0017
Ecliptic YDOT -0.00257982 +/- 0.0008
Ecliptic ZDOT 0.00059199 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 47.49818277 +/- 1.6028
Geocenter to KBO 46.58074406 +/- 1.8285
# Hcoef: 6.25
The following table shows the complete astrometric record for 02CV154. 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 (02CV154) followed by the observatory code and reference code for the source of the astrometry.
2002 02 06.35895 10 46 09.80 +10 36 52.2 23.1R 02CV154 695 Cf0336 2002 02 06.45597 10 46 09.42 +10 36 55.2 02CV154 695 Cf0336 2002 02 07.44677 10 46 05.84 +10 37 21.5 02CV154 695 Cf0336 2002 03 09.45012 10 44 08.09 +10 50 43.8 22.2R 02CV154 568 Cf2718 2002 03 09.50464 10 44 07.92 +10 50 46.1 02CV154 568 Cf2718
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 0.19 0.00 -0.39
2 0.0003 -6.32 -0.27 0.66 -0.07
3 0.0030 -65.12 0.09 5.08 0.47
4 0.0851 -1974.94 -0.17 94.14 -0.56
5 0.0853 -1978.13 0.17 95.33 0.54
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.
02CV154 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