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: 01QQ297 # Created Thu Nov 21 02:08:15 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 12.13y # First observation: 2001/08/19 # Last observation: 2013/10/05 # Chi-squared of fit: 22.50 DOF: 30 RMS: 0.20 # Min/Max residuals: -0.34 0.47 # Exact a, adot, b, bdot, g, gdot: 1.509815E-05 2.376567E-02 7.344489E-08 7.196529E-05 2.413174E-02 1.893083E-03 # Covariance matrix: 1.8945E-13 -1.3981E-14 -1.4204E-15 -4.7895E-16 1.2086E-13 -2.9925E-14 -1.3981E-14 8.7378E-14 -1.1278E-15 6.3461E-17 1.1017E-13 3.1213E-13 -1.4204E-15 -1.1278E-15 1.2468E-13 -1.4146E-14 -4.1432E-15 -3.5918E-15 -4.7895E-16 6.3461E-17 -1.4146E-14 4.7684E-15 -8.0704E-16 4.6587E-16 1.2086E-13 1.1017E-13 -4.1432E-15 -8.0704E-16 3.7144E-13 3.5933E-13 -2.9925E-14 3.1213E-13 -3.5918E-15 4.6587E-16 3.5933E-13 1.1938E-12 # lat0 lon0 xBary yBary zBary JD0 -4.508585 -7.210008 0.456037 -0.071183 -0.901589 2452140.811033 # Heliocentric elements and errors Epoch: 2452140.5000 = 2001/08/19 Mean Anomaly: 50.80421 +/- 0.037 Argument of Peri: 213.00173 +/- 0.046 Long of Asc Node: 80.76437 +/- 0.002 Inclination: 4.41329 +/- 0.000 Eccentricity: 0.08043774 +/- 0.0000 Semi-Major Axis: 44.41690474 +/- 0.0040 Time of Perihelion: 2436881.7822 +/- 11.3 Perihelion: 40.84410947 +/- 0.0043 Aphelion: 47.98970002 +/- 0.0049 Period (y) 296.0265 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.82710157 +/- 0.0010 Ecliptic Y -5.74459154 +/- 0.0001 Ecliptic Z -3.25748932 +/- 0.0001 Ecliptic XDOT 0.00054283 +/- 0.0000 Ecliptic YDOT 0.00264939 +/- 0.0000 Ecliptic ZDOT -0.00000853 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.34518165 +/- 0.0010 Geocenter to KBO 41.43918092 +/- 0.0010 # Hcoef: 6.82
The following table shows the complete astrometric record for 01QQ297. 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 (01QQ297) followed by the observatory code and reference code for the source of the astrometry.
2001 08 19.31029 23 40 41.45 -07 00 04.5 22.0R 01QQ297 807 Cd7925 2001 08 19.39741 23 40 41.11 -07 00 07.1 01QQ297 807 Cd7925 2001 08 20.31973 23 40 37.61 -07 00 32.0 22.5R 01QQ297 807 Cd7926 2001 08 20.40536 23 40 37.26 -07 00 34.6 01QQ297 807 Cd7926 2001 10 20.27095 23 36 22.65 -07 27 10.7 22.8R 01QQ297 695 Ce0366 2001 10 20.32825 23 36 22.41 -07 27 11.9 01QQ297 695 Ce0366 2001 10 21.15929 23 36 19.50 -07 27 26.8 01QQ297 695 Ce0366 2002 08 10.41194 23 46 14.15 -06 23 20.2 22.3R 01QQ297 807 Cg3217 2002 08 11.35019 23 46 11.06 -06 23 44.4 01QQ297 807 Cg3217 2002 08 11.41322 23 46 10.87 -06 23 45.8 01QQ297 807 Cg3217 2002 11 05.31229 23 40 33.66 -06 58 43.4 23.6R 01QQ297 568 Cl8341 2002 11 05.37373 23 40 33.48 -06 58 44.5 01QQ297 568 Cl8341 2002 11 06.34631 23 40 30.92 -06 58 54.9 01QQ297 568 Cl8341 2009 01 16.088769 00 09 37.94 -03 37 43.9 23.3V 01QQ297 645 C~2Jx5 2009 01 16.089598 00 09 37.94 -03 37 43.9 23.1V 01QQ297 645 C~2Jx5 2009 01 16.092086 00 09 37.92 -03 37 43.9 23.8V 01QQ297 645 C~2Jx5 2013 10 05.31979 00 36 06.25 -00 47 50.9 23.3R 01QQ297 695 C~0zdD 2013 10 05.36404 00 36 06.06 -00 47 52.0 01QQ297 695 C~0zdD
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 0.09 0.00 0.03
2 0.0002 0.00 0.04 0.00 -0.17
3 0.0028 0.00 0.30 0.00 0.47
4 0.0030 0.00 0.07 0.00 0.24
5 0.1696 0.00 0.21 0.00 -0.00
6 0.1698 0.00 -0.29 0.00 -0.15
7 0.1721 0.00 -0.17 0.00 0.15
8 0.9750 0.00 -0.12 0.00 0.03
9 0.9775 0.00 -0.28 0.00 -0.34
10 0.9777 0.00 0.07 0.00 -0.13
11 1.2129 0.00 0.14 0.00 0.11
12 1.2130 0.00 -0.04 0.00 -0.29
13 1.2157 0.00 -0.19 0.00 0.21
14 7.4108 0.00 0.28 0.00 -0.13
15 7.4108 0.00 0.25 0.00 -0.15
16 7.4108 0.00 -0.15 0.00 -0.21
17 12.1287 0.00 -0.14 0.00 0.12
18 12.1288 0.00 -0.05 0.00 0.22
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.
01QQ297 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.658 44.658 44.658 ecceobj 0.084 0.084 0.084 incobj 4.413 4.413 4.413 qmin 40.182 40.182 40.181 qmax 48.878 48.874 48.886 amean 44.419 44.419 44.419 amin 44.053 44.055 44.052 amax 44.811 44.805 44.810 emean 0.076 0.076 0.076 emin 0.060 0.060 0.060 emax 0.092 0.092 0.091 imean 2.584 2.584 2.584 imin 1.944 1.944 1.944 imax 3.183 3.184 3.183 excite_mean 0.089 0.089 0.089 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 183.1 183.2 183.1 kozaiamp 180.0 180.0 180.0