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: 22WW24
# Created Tue May 7 01:18:16 2024
# Orbit generated from Bernstein formalism
# Fitting 5 observations of 5
# Arc: 27.96d
# First observation: 2022/11/28
# Last observation: 2022/12/26
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.026151 -0.000000 0.007428 0.025882 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 14 iterations -- oscilliatory solution
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 0.70 DOF: 5 RMS: 0.07
# Min/Max residuals: -0.10 0.08
# Exact a, adot, b, bdot, g, gdot:
1.484510E-05 2.451043E-02 4.267649E-06 7.442774E-03 2.570301E-02 -3.901777E-03
# Covariance matrix:
1.5126E-10 2.3333E-07 3.0619E-12 5.6213E-09 4.8623E-08 7.9725E-07
2.3333E-07 3.6113E-04 4.7378E-09 8.6979E-06 7.5245E-05 1.2305E-03
3.0619E-12 4.7378E-09 5.4587E-13 1.0802E-10 9.8788E-10 1.6580E-08
5.6213E-09 8.6979E-06 1.0802E-10 2.1017E-07 1.8137E-06 3.0533E-05
4.8623E-08 7.5245E-05 9.8788E-10 1.8137E-06 1.5683E-05 2.5908E-04
7.9725E-07 1.2305E-03 1.6580E-08 3.0533E-05 2.5908E-04 5.9019E-03
# lat0 lon0 xBary yBary zBary JD0
1.587166 41.941176 -0.403126 0.024669 -0.896611 2459911.742091
# Heliocentric elements and errors
Epoch: 2459910.5000 = 2022/11/27
Mean Anomaly: 289.80438 +/- 180.740
Argument of Peri: 91.60506 +/- 78.299
Long of Asc Node: 37.38928 +/- 3.364
Inclination: 16.86862 +/- 10.743
Eccentricity: 0.14191175 +/- 2.9413
Semi-Major Axis: 41.00615296 +/- 21.0667
Time of Perihelion: 2478612.1313 +/- 45945.8
Perihelion: 35.18689819 +/- 121.9600
Aphelion: 46.82540774 +/- 122.9884
Period (y) 262.5922 +/- 202.36
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 29.33479629 +/- 4.4573
Ecliptic Y 26.89286246 +/- 4.0046
Ecliptic Z 1.07773943 +/- 0.1660
Ecliptic XDOT -0.00207085 +/- 0.0052
Ecliptic YDOT 0.00165870 +/- 0.0066
Ecliptic ZDOT 0.00078092 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 39.81102670 +/- 4.2550
Geocenter to KBO 38.90594654 +/- 5.9943
# Hcoef: 7.54
The following table shows the complete astrometric record for 22WW24. 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 (22WW24) followed by the observatory code and reference code for the source of the astrometry.
2022 11 28.241290 02 35 58.330 +16 55 41.16 23.6G 22WW24 G37 C~69hH 2022 11 28.292160 02 35 58.087 +16 55 40.04 22WW24 G37 C~69hH 2022 11 28.341640 02 35 57.841 +16 55 39.20 22WW24 G37 C~69hH 2022 12 26.081540 02 34 10.326 +16 48 31.45 23.1G 22WW24 G37 C~69hH 2022 12 26.196470 02 34 09.984 +16 48 30.00 22WW24 G37 C~69hH
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 0.05 0.00 0.06
2 0.0001 -3.66 0.02 0.01 -0.10
3 0.0003 -7.28 -0.07 0.31 0.03
4 0.0762 -1607.19 0.08 72.69 0.07
5 0.0765 -1612.31 -0.08 72.84 -0.07
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.
22WW24 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