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: 00ST331 # Created Wed Nov 27 02:08:07 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 1.14y # First observation: 2000/09/23 # Last observation: 2001/11/15 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.029398 -0.000001 0.001265 0.027214 0.000000 # Chi-squared of fit: 4.29 DOF: 14 RMS: 0.12 # Min/Max residuals: -0.21 0.31 # Exact a, adot, b, bdot, g, gdot: 1.704637E-05 2.908459E-02 1.162331E-07 1.250803E-03 2.697074E-02 5.424935E-05 # Covariance matrix: 6.7341E-13 1.1444E-10 2.9667E-14 5.0371E-12 1.0206E-10 3.6721E-09 1.1444E-10 3.2663E-08 7.9427E-12 1.4721E-09 2.7683E-08 1.1110E-06 2.9667E-14 7.9427E-12 2.4720E-13 1.3404E-13 7.0698E-12 2.5441E-10 5.0371E-12 1.4721E-09 1.3404E-13 6.7472E-11 1.2231E-09 5.1221E-08 1.0206E-10 2.7683E-08 7.0698E-12 1.2231E-09 2.4387E-08 8.9855E-07 3.6721E-09 1.1110E-06 2.5441E-10 5.1221E-08 8.9855E-07 3.9794E-05 # lat0 lon0 xBary yBary zBary JD0 -2.416387 59.301043 0.853901 -0.021950 -0.515874 2451810.957343 # Heliocentric elements and errors Epoch: 2451810.5000 = 2000/09/23 Mean Anomaly: 351.19930 +/- 89.662 Argument of Peri: 326.47396 +/- 115.145 Long of Asc Node: 102.70100 +/- 0.213 Inclination: 3.38438 +/- 0.013 Eccentricity: 0.11849549 +/- 0.0405 Semi-Major Axis: 42.57853790 +/- 0.4972 Time of Perihelion: 2454291.3418 +/- 25275.0 Perihelion: 37.53317307 +/- 1.7779 Aphelion: 47.62390272 +/- 1.8105 Period (y) 277.8397 +/- 4.87 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 19.91481120 +/- 0.1095 Ecliptic Y 31.86576367 +/- 0.1844 Ecliptic Z -1.56321478 +/- 0.0091 Ecliptic XDOT -0.00254060 +/- 0.0003 Ecliptic YDOT 0.00152169 +/- 0.0006 Ecliptic ZDOT 0.00012678 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.60944349 +/- 0.1667 Geocenter to KBO 37.07721994 +/- 0.2147 # Hcoef: 8.66
The following table shows the complete astrometric record for 00ST331. 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 (00ST331) followed by the observatory code and reference code for the source of the astrometry.
2000 09 23.45660 03 50 33.51 +17 38 26.5 24.2R 00ST331 568 Cc1430 2000 09 23.51348 03 50 33.37 +17 38 25.6 00ST331 568 Cc1430 2000 09 23.58921 03 50 33.20 +17 38 25.1 24.1R 00ST331 568 Cc1430 2000 09 24.47004 03 50 31.11 +17 38 16.1 23.7R 00ST331 568 Cc1430 2000 09 24.52751 03 50 30.96 +17 38 15.5 23.6R 00ST331 568 Cc1431 2000 09 24.59204 03 50 30.80 +17 38 15.0 24.6R 00ST331 568 Cc1431 2001 11 14.25499 03 53 45.49 +17 51 32.6 24.0R 00ST331 309 Ce3523 2001 11 14.29490 03 53 45.26 +17 51 32.2 24.3R 00ST331 309 Ce3523 2001 11 15.28883 03 53 39.77 +17 51 15.3 24.3R 00ST331 309 Ce3523 2001 11 15.32092 03 53 39.60 +17 51 14.7 24.1R 00ST331 309 Ce3523
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 0.00 0.00 0.13
2 0.0002 -2.15 -0.12 -0.45 -0.20
3 0.0004 -4.63 0.13 -0.42 0.00
4 0.0028 -35.74 0.03 -2.85 -0.02
5 0.0029 -37.96 -0.06 -2.98 -0.03
6 0.0031 -40.30 0.02 -2.98 0.12
7 1.1411 2846.92 0.02 189.66 0.02
8 1.1412 2843.62 -0.01 189.95 0.31
9 1.1440 2763.42 -0.07 189.81 -0.12
10 1.1441 2760.92 0.06 189.73 -0.21
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.
00ST331 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