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: 03QY111 # Created Sun Oct 21 01:08:11 2018 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 15 observations of 15 # Arc: 10.12y # First observation: 2003/08/25 # Last observation: 2013/10/06 # Chi-squared of fit: 17.94 DOF: 24 RMS: 0.19 # Min/Max residuals: -0.59 0.40 # Exact a, adot, b, bdot, g, gdot: 1.459629E-05 2.385731E-02 -6.960007E-07 -2.020093E-04 2.429174E-02 7.965679E-04 # Covariance matrix: 2.9264E-13 -1.1434E-13 -7.4220E-16 1.0807E-15 2.5270E-13 -4.6297E-13 -1.1434E-13 1.8661E-13 8.5920E-16 -1.7298E-15 -1.5267E-14 8.1672E-13 -7.4220E-16 8.5920E-16 1.6059E-13 -1.9072E-14 -9.3811E-16 3.9952E-15 1.0807E-15 -1.7298E-15 -1.9072E-14 5.7286E-15 6.5296E-16 -7.8777E-15 2.5270E-13 -1.5267E-14 -9.3811E-16 6.5296E-16 7.3239E-13 -1.6697E-13 -4.6297E-13 8.1672E-13 3.9952E-15 -7.8777E-15 -1.6697E-13 3.7005E-12 # lat0 lon0 xBary yBary zBary JD0 -2.968394 -3.582584 0.427292 -0.047627 -0.919600 2452876.779843 # Heliocentric elements and errors Epoch: 2452876.5000 = 2003/08/25 Mean Anomaly: 39.80819 +/- 0.120 Argument of Peri: 217.57770 +/- 0.130 Long of Asc Node: 95.98074 +/- 0.004 Inclination: 2.94960 +/- 0.000 Eccentricity: 0.03282867 +/- 0.0001 Semi-Major Axis: 43.15343615 +/- 0.0066 Time of Perihelion: 2441426.8710 +/- 34.8 Perihelion: 41.73676603 +/- 0.0083 Aphelion: 44.57010627 +/- 0.0086 Period (y) 283.4858 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.92023716 +/- 0.0014 Ecliptic Y -3.04868814 +/- 0.0001 Ecliptic Z -2.13184503 +/- 0.0001 Ecliptic XDOT 0.00025108 +/- 0.0000 Ecliptic YDOT 0.00267238 +/- 0.0000 Ecliptic ZDOT -0.00002721 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.08496633 +/- 0.0014 Geocenter to KBO 41.16627649 +/- 0.0015 # Hcoef: 6.75
The following table shows the complete astrometric record for 03QY111. 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 (03QY111) followed by the observatory code and reference code for the source of the astrometry.
2003 08 25.27910 23 51 34.52 -04 08 53.1 22.2R 03QY111 807 Ci4592 2003 08 25.38190 23 51 34.12 -04 08 56.1 03QY111 807 Ci4592 2003 09 03.13413 23 50 58.52 -04 13 02.3 23.0R 03QY111 304 Ci4592 2003 09 03.20601 23 50 58.25 -04 13 04.0 03QY111 304 Ci4592 2003 10 22.15921 23 47 30.57 -04 35 00.5 22.5R 03QY111 695 Cj4700 2003 10 22.25323 23 47 30.23 -04 35 02.5 03QY111 695 Cj4700 2004 08 13.30947 23 57 16.35 -03 32 05.9 21.5R 03QY111 807 Cl8405 2004 08 13.38192 23 57 16.10 -03 32 07.5 03QY111 807 Cl8405 2004 10 11.21987 23 53 12.16 -03 59 13.1 23.0R 03QY111 695 Cl8405 2004 10 11.31032 23 53 11.82 -03 59 15.6 03QY111 695 Cl8405 2010 09 16.42927 00 25 07.34 -00 34 16.9 23.5R 03QY111 688 C~0NG0 2010 09 16.47315 00 25 07.12 -00 34 18.0 03QY111 688 C~0NG0 2013 10 05.32455 00 38 40.97 +00 53 16.1 22.8R 03QY111 695 C~0zdV 2013 10 05.36866 00 38 40.77 +00 53 15.1 03QY111 695 C~0zdV 2013 10 06.36532 00 38 36.35 +00 52 47.4 03QY111 695 C~0zdV
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 0.13 0.00 0.18 2 0.0003 0.00 0.26 0.00 -0.00 3 0.0242 0.00 -0.59 0.00 -0.12 4 0.0244 0.00 -0.03 0.00 0.24 5 0.1585 0.00 -0.03 0.00 -0.06 6 0.1587 0.00 0.11 0.00 -0.09 7 0.9693 0.00 0.09 0.00 -0.08 8 0.9695 0.00 -0.01 0.00 0.08 9 1.1306 0.00 -0.18 0.00 0.02 10 1.1308 0.00 0.40 0.00 -0.22 11 7.0613 0.00 0.14 0.00 0.00 12 7.0614 0.00 -0.30 0.00 0.16 13 10.1137 0.00 -0.00 0.00 -0.27 14 10.1139 0.00 -0.01 0.00 -0.03 15 10.1166 0.00 0.09 0.00 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.
03QY111 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.604 43.604 43.604 ecceobj 0.041 0.041 0.041 incobj 2.950 2.950 2.950 qmin 40.945 40.945 40.944 qmax 45.936 45.936 45.936 amean 43.363 43.363 43.363 amin 43.035 43.035 43.035 amax 43.712 43.710 43.709 emean 0.035 0.035 0.035 emin 0.016 0.016 0.016 emax 0.051 0.051 0.051 imean 1.361 1.361 1.361 imin 0.414 0.414 0.414 imax 2.070 2.070 2.069 excite_mean 0.044 0.044 0.044 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.092 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 170.0 169.9 169.9 kozaiamp 180.0 180.0 180.0