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: 01OO108 # Created Wed Dec 25 02:08:11 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 9 observations of 9 # Arc: 13.84y # First observation: 2001/07/26 # Last observation: 2015/05/28 # Chi-squared of fit: 4.07 DOF: 12 RMS: 0.12 # Min/Max residuals: -0.27 0.14 # Exact a, adot, b, bdot, g, gdot: 1.660158E-05 2.579761E-02 2.103788E-07 2.535584E-04 2.495874E-02 7.207710E-03 # Covariance matrix: 1.5638E-12 1.2483E-10 5.5851E-15 1.2237E-12 1.1162E-10 3.7118E-10 1.2483E-10 1.5300E-07 -3.3523E-13 1.5538E-09 2.7047E-08 4.4429E-07 5.5851E-15 -3.3523E-13 3.6731E-13 -3.0193E-14 4.2004E-13 -9.2740E-13 1.2237E-12 1.5538E-09 -3.0193E-14 1.5785E-11 2.7105E-10 4.5117E-09 1.1162E-10 2.7047E-08 4.2004E-13 2.7105E-10 1.2107E-08 7.9245E-08 3.7118E-10 4.4429E-07 -9.2740E-13 4.5117E-09 7.9245E-08 1.2903E-06 # lat0 lon0 xBary yBary zBary JD0 -1.134803 -40.583853 0.282331 -0.019513 -0.978458 2452117.079603 # Heliocentric elements and errors Epoch: 2452116.5000 = 2001/07/26 Mean Anomaly: 38.37171 +/- 6.886 Argument of Peri: 226.76219 +/- 12.544 Long of Asc Node: 22.65792 +/- 0.042 Inclination: 1.23637 +/- 0.001 Eccentricity: 0.32008542 +/- 0.0373 Semi-Major Axis: 50.83007882 +/- 2.9537 Time of Perihelion: 2438007.7589 +/- 2814.9 Perihelion: 34.56011163 +/- 2.7610 Aphelion: 67.10004601 +/- 4.3352 Period (y) 362.4010 +/- 31.59 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.98535026 +/- 0.1642 Ecliptic Y -26.90541510 +/- 0.1407 Ecliptic Z -0.79347525 +/- 0.0043 Ecliptic XDOT 0.00243319 +/- 0.0001 Ecliptic YDOT 0.00163617 +/- 0.0001 Ecliptic ZDOT 0.00001236 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.04398162 +/- 0.1546 Geocenter to KBO 40.06597302 +/- 0.2163 # Hcoef: 7.94
The following table shows the complete astrometric record for 01OO108. 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 (01OO108) followed by the observatory code and reference code for the source of the astrometry.
2001 07 26.57886 21 28 49.08 -16 04 30.5 01OO108 568 Cd3420 2001 07 27.53290 21 28 44.72 -16 04 51.8 24.1R 01OO108 568 Cd3420 2001 07 27.57814 21 28 44.50 -16 04 52.6 23.4R 01OO108 568 Cd3420 2001 07 27.61223 21 28 44.33 -16 04 53.4 23.2R 01OO108 568 Cd3420 2015 05 27.351097 22 41 56.00 -09 11 27.4 24.5r 01OO108 W84 C~1j7Q 2015 05 27.372572 22 41 56.03 -09 11 27.2 24.5r 01OO108 W84 C~1j7Q 2015 05 27.394052 22 41 56.07 -09 11 26.9 24.5r 01OO108 W84 C~1j7Q 2015 05 27.415544 22 41 56.09 -09 11 26.9 24.6r 01OO108 W84 C~1j7Q 2015 05 28.348963 22 41 57.03 -09 11 22.4 24.9r 01OO108 W84 C~1j7Q
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 -0.03
2 0.0026 0.00 0.10 0.00 -0.14
3 0.0027 0.00 -0.02 0.00 0.06
4 0.0028 0.00 -0.19 0.00 0.01
5 13.8337 0.00 -0.27 0.00 -0.13
6 13.8338 0.00 -0.14 0.00 -0.05
7 13.8339 0.00 0.14 0.00 0.14
8 13.8339 0.00 0.12 0.00 0.03
9 13.8365 0.00 -0.02 0.00 -0.12
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.
01OO108 quality flag:2 Type: SCATNEAR SCATNEAR CENTAURR axisobj 51.135 51.135 51.135 ecceobj 0.322 0.322 0.322 incobj 1.235 1.235 1.235 qmin 33.702 33.969 30.176 qmax 72.229 71.385 75.255 amean 51.652 51.640 50.403 amin 50.155 49.777 43.912 amax 53.365 53.019 53.764 emean 0.325 0.322 0.331 emin 0.300 0.300 0.291 emax 0.355 0.347 0.405 imean 3.961 3.830 3.344 imin 1.913 1.913 1.305 imax 6.212 5.770 6.730 excite_mean 0.332 0.330 0.336 fracstop 1.000 1.000 0.952 cjmean 3.053 3.056 3.034 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 186.6 180.3 183.4 kozaiamp 180.0 180.0 180.0