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: 01QE298 # Created Tue Oct 24 01:37:13 2017 # Orbit generated from Bernstein formalism # Fitting 25 observations of 25 # Arc: 7.44y # First observation: 2001/05/23 # Last observation: 2008/10/30 Preliminary a, adot, b, bdot, g, gdot: -0.000829 0.029899 -0.000044 0.001805 0.026513 0.000000 # Chi-squared of fit: 236.97 DOF: 44 RMS: 0.54 # Min/Max residuals: -2.22 1.37 # Exact a, adot, b, bdot, g, gdot: 1.849283E-05 2.868579E-02 2.293844E-06 1.722011E-03 2.634405E-02 -1.355641E-03 # Covariance matrix: 3.2429E-13 -2.1270E-13 1.3882E-14 -1.6298E-14 1.5878E-13 -1.2168E-12 -2.1270E-13 2.5631E-13 -1.3441E-14 1.8990E-14 -5.1598E-14 1.4371E-12 1.3882E-14 -1.3441E-14 9.2344E-14 -1.8204E-14 7.7337E-15 -8.1349E-14 -1.6298E-14 1.8990E-14 -1.8204E-14 9.5708E-15 -5.9513E-15 1.1138E-13 1.5878E-13 -5.1598E-14 7.7337E-15 -5.9513E-15 1.8804E-13 -4.2541E-13 -1.2168E-12 1.4371E-12 -8.1349E-14 1.1138E-13 -4.2541E-13 8.4111E-12 # lat0 lon0 xBary yBary zBary JD0 -1.325049 -12.115037 0.981079 0.006235 0.275106 2452052.834113 # Heliocentric elements and errors Epoch: 2452050.5000 = 2001/05/21 Mean Anomaly: 336.02761 +/- 0.033 Argument of Peri: 11.50633 +/- 0.047 Long of Asc Node: 7.77199 +/- 0.001 Inclination: 3.65703 +/- 0.000 Eccentricity: 0.15846072 +/- 0.0000 Semi-Major Axis: 43.81404768 +/- 0.0041 Time of Perihelion: 2459104.3669 +/- 9.6 Perihelion: 36.87124213 +/- 0.0040 Aphelion: 50.75685324 +/- 0.0052 Period (y) 290.0202 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.63254205 +/- 0.0006 Ecliptic Y -8.86000161 +/- 0.0001 Ecliptic Z -0.87769709 +/- 0.0000 Ecliptic XDOT 0.00048361 +/- 0.0000 Ecliptic YDOT 0.00294580 +/- 0.0000 Ecliptic ZDOT 0.00018237 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.69898033 +/- 0.0006 Geocenter to KBO 37.95923881 +/- 0.0006 # Hcoef: 6.80
The following table shows the complete astrometric record for 01QE298. 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 (01QE298) followed by the observatory code and reference code for the source of the astrometry.
2001 05 23.33337 23 17 30.85 -06 00 30.9 22.6R 01QE298 807 Ch1433 2001 05 23.41349 23 17 31.09 -06 00 29.4 01QE298 807 Ch1433 2001 08 19.23189 23 15 34.61 -06 14 01.6 21.2R 01QE298 807 Cd7926 2001 08 19.31453 23 15 34.23 -06 14 03.9 01QE298 807 Cd7926 2001 08 20.29073 23 15 29.79 -06 14 31.9 01QE298 807 Cd7926 2001 08 20.37625 23 15 29.36 -06 14 35.1 01QE298 807 Cd7926 2001 10 11.05469 23 11 26.47 -06 38 56.3 22.6 01QE298 304 Ce9410 2001 10 11.08410 23 11 26.21 -06 38 57.9 01QE298 304 Ce9410 2001 10 20.21289 23 10 51.77 -06 42 11.7 22.6R 01QE298 695 Ce0366 2001 10 20.29398 23 10 51.52 -06 42 13.4 01QE298 695 Ce0366 2001 10 21.12132 23 10 48.66 -06 42 29.5 01QE298 695 Ce0366 2002 08 05.06488 23 22 41.10 -05 22 12.6 22.5R 01QE298 950 Ch3951 2002 08 05.10819 23 22 41.00 -05 22 13.8 01QE298 950 Ch3951 2002 08 06.16259 23 22 37.04 -05 22 38.9 01QE298 950 Ch3951 2002 08 10.30575 23 22 21.09 -05 24 20.4 21.7R 01QE298 807 Cg3218 2002 08 10.40699 23 22 20.64 -05 24 23.7 01QE298 807 Cg3218 2002 08 11.40921 23 22 16.62 -05 24 49.5 01QE298 807 Cg3218 2003 05 31.58309 23 29 42.11 -04 29 48.6 23.4R 01QE298 568 Ci1433 2003 06 01.58072 23 29 44.29 -04 29 35.5 01QE298 568 Ci1433 2003 06 02.57879 23 29 46.35 -04 29 23.2 01QE298 568 Ci1433 2007 11 11.14815 23 46 25.06 -02 12 47.6 22.8R 01QE298 688 Cw6710 2007 11 11.22183 23 46 24.80 -02 12 48.9 01QE298 688 Cw6710 2008 10 30.251235 23 53 09.52 -01 22 19.1 01QE298 645 C~1Qcu 2008 10 30.252065 23 53 09.52 -01 22 19.1 01QE298 645 C~1Qcu 2008 10 30.254552 23 53 09.51 -01 22 19.2 01QE298 645 C~1Qcu
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 -0.26 0.00 -0.26 2 0.0002 3.88 0.32 -0.02 -0.21 3 0.2407 -1912.66 0.23 -69.02 -0.07 4 0.2409 -1918.77 0.23 -68.93 -0.03 5 0.2436 -1990.66 -0.30 -68.87 -0.19 6 0.2438 -1997.81 -1.09 -69.32 -0.70 7 0.3853 -5902.91 0.03 -5.86 0.18 8 0.3854 -5907.11 -2.22 -5.83 0.13 9 0.4103 -6455.69 0.41 14.78 0.01 10 0.4106 -6459.79 0.90 14.66 -0.35 11 0.4128 -6505.35 0.64 16.36 -0.59 12 1.2012 5162.23 -0.47 298.50 0.63 13 1.2013 5160.38 0.32 297.98 0.10 14 1.2042 5096.10 -0.18 298.15 0.41 15 1.2155 4837.03 1.37 298.44 0.81 16 1.2158 4829.55 0.56 298.04 0.37 17 1.2186 4764.17 0.69 297.91 0.24 18 2.0212 12197.04 -0.34 707.19 -0.02 19 2.0239 12232.28 -0.19 706.33 -0.06 20 2.0267 12265.56 -0.50 705.44 -0.12 21 6.4690 29429.46 0.10 2293.06 -0.12 22 6.4692 29425.28 -0.85 2293.43 0.05 23 7.4385 36372.06 0.17 2655.18 -0.06 24 7.4385 36372.06 0.22 2655.18 -0.06 25 7.4385 36371.88 0.19 2655.15 -0.10
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.
01QE298 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 44.030 44.042 44.017 ecceobj 0.162 0.162 0.162 incobj 3.650 3.650 3.650 qmin 36.073 36.065 36.053 qmax 51.844 51.823 51.814 amean 43.727 43.727 43.727 amin 43.324 43.316 43.317 amax 44.189 44.178 44.210 emean 0.142 0.144 0.141 emin 0.095 0.100 0.092 emax 0.174 0.174 0.174 imean 4.186 3.922 4.262 imin 1.198 1.021 1.273 imax 6.926 6.671 7.012 excite_mean 0.163 0.163 0.164 fracstop 1.000 1.000 1.000 cjmean 3.066 3.066 3.066 libcent 0 180.7 180.8 185.0 libamp 0 93.5 92.5 90.6 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 95.3 101.8 92.8 kozaiamp 179.9 179.9 179.5