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 Thu Apr 26 01:37:22 2018 # Orbit generated from Bernstein formalism # Fitting 15 observations of 15 # Arc: 10.12y # First observation: 2003/08/25 # Last observation: 2013/10/06 Preliminary a, adot, b, bdot, g, gdot: -0.000222 0.024107 0.000003 -0.000207 0.024104 0.000000 # Chi-squared of fit: 17.50 DOF: 24 RMS: 0.19 # Min/Max residuals: -0.59 0.28 # Exact a, adot, b, bdot, g, gdot: 1.463758E-05 2.385727E-02 -6.951025E-07 -2.020089E-04 2.429172E-02 7.965116E-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: 2452870.5000 = 2003/08/19 Mean Anomaly: 39.78699 +/- 0.120 Argument of Peri: 217.57831 +/- 0.130 Long of Asc Node: 95.98073 +/- 0.004 Inclination: 2.94960 +/- 0.000 Eccentricity: 0.03282555 +/- 0.0001 Semi-Major Axis: 43.15336152 +/- 0.0066 Time of Perihelion: 2441426.9984 +/- 34.6 Perihelion: 41.73682879 +/- 0.0083 Aphelion: 44.56989424 +/- 0.0086 Period (y) 283.4850 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.92025859 +/- 0.0014 Ecliptic Y -3.04868778 +/- 0.0001 Ecliptic Z -2.13184610 +/- 0.0001 Ecliptic XDOT 0.00025107 +/- 0.0000 Ecliptic YDOT 0.00267238 +/- 0.0000 Ecliptic ZDOT -0.00002721 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.08500143 +/- 0.0014 Geocenter to KBO 41.16628496 +/- 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 0.18 0.00 0.12 2 0.0003 -6.68 0.22 -0.37 -0.10 3 0.0242 -593.25 -0.59 -14.29 0.12 4 0.0244 -597.63 0.06 -14.25 0.23 5 0.1585 -3971.52 -0.06 11.79 -0.05 6 0.1587 -3976.98 0.06 11.97 -0.12 7 0.9693 5573.06 0.04 -16.30 -0.11 8 0.9695 5568.99 0.02 -16.27 0.08 9 1.1306 1571.07 -0.17 -49.83 0.09 10 1.1308 1565.41 0.28 -50.10 -0.36 11 7.0613 33072.84 0.14 -320.22 -0.05 12 7.0614 33069.29 -0.21 -319.89 0.27 13 10.1137 46862.00 -0.12 -444.52 -0.25 14 10.1139 46858.69 -0.03 -444.22 -0.02 15 10.1166 46783.16 0.18 -442.77 0.15
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 43.603 43.623 43.583 ecceobj 0.041 0.041 0.040 incobj 2.950 2.950 2.950 qmin 40.969 40.989 40.981 qmax 45.951 45.970 45.915 amean 43.362 43.382 43.342 amin 43.028 43.047 43.013 amax 43.709 43.721 43.684 emean 0.035 0.035 0.034 emin 0.015 0.015 0.014 emax 0.052 0.052 0.051 imean 1.361 1.360 1.362 imin 0.415 0.421 0.408 imax 2.070 2.061 2.078 excite_mean 0.044 0.044 0.043 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 3.091 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 170.1 170.0 170.3 kozaiamp 179.9 180.0 180.0