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: 03QB112 # Created Thu May 24 01:37:17 2012 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 5.07y # First observation: 2003/08/26 # Last observation: 2008/09/20 Preliminary a, adot, b, bdot, g, gdot: -0.000079 0.026438 -0.000012 0.005130 0.025729 0.000000 # Chi-squared of fit: 15.33 DOF: 26 RMS: 0.17 # Min/Max residuals: -0.29 0.39 # Exact a, adot, b, bdot, g, gdot: 1.547798E-05 2.642860E-02 4.434408E-06 5.132181E-03 2.577705E-02 1.470087E-03 # Covariance matrix: 3.0962E-13 -9.5602E-14 3.1960E-15 -9.2432E-15 1.8694E-13 -3.8101E-13 -9.5602E-14 2.3576E-13 -1.5659E-14 4.4667E-14 1.2127E-13 1.8285E-12 3.1960E-15 -1.5659E-14 2.2931E-13 -5.9100E-14 -8.1564E-15 -1.3463E-13 -9.2432E-15 4.4667E-14 -5.9100E-14 3.2226E-14 2.2906E-14 3.8409E-13 1.8694E-13 1.2127E-13 -8.1564E-15 2.2906E-14 6.6256E-13 9.3034E-13 -3.8101E-13 1.8285E-12 -1.3463E-13 3.8409E-13 9.3034E-13 1.5725E-11 # lat0 lon0 xBary yBary zBary JD0 -3.063811 -0.755886 0.456554 -0.048384 -0.905104 2452877.803963 # Heliocentric elements and errors Epoch: 2452870.5000 = 2003/08/19 Mean Anomaly: 21.14062 +/- 0.062 Argument of Peri: 318.55756 +/- 0.079 Long of Asc Node: 13.67504 +/- 0.000 Inclination: 11.36243 +/- 0.000 Eccentricity: 0.10434146 +/- 0.0001 Semi-Major Axis: 43.89776105 +/- 0.0061 Time of Perihelion: 2446632.0422 +/- 18.4 Perihelion: 39.31740462 +/- 0.0076 Aphelion: 48.47811748 +/- 0.0086 Period (y) 290.8518 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.63285951 +/- 0.0012 Ecliptic Y -0.97531116 +/- 0.0000 Ecliptic Z -2.07332581 +/- 0.0001 Ecliptic XDOT 0.00021683 +/- 0.0000 Ecliptic YDOT 0.00279864 +/- 0.0000 Ecliptic ZDOT 0.00053615 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.69903607 +/- 0.0012 Geocenter to KBO 38.79419598 +/- 0.0012 # Hcoef: 7.43
The following table shows the complete astrometric record for 03QB112. 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 (03QB112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 26.30322 00 02 06.34 -03 06 41.1 21.8R 03QB112 807 Ci4592 2003 08 26.40767 00 02 05.87 -03 06 43.7 03QB112 807 Ci4592 2003 09 03.14367 00 01 32.93 -03 10 08.7 23.2R 03QB112 304 Ci4592 2003 09 03.21593 00 01 32.61 -03 10 10.7 03QB112 304 Ci4592 2003 10 22.17400 23 57 48.89 -03 31 23.4 22.8R 03QB112 695 Cj4700 2003 10 22.25889 23 57 48.53 -03 31 24.9 03QB112 695 Cj4700 2006 08 21.22608 00 17 33.85 -00 28 19.5 22.3R 03QB112 807 Cs2604 2006 08 21.29974 00 17 33.57 -00 28 21.4 03QB112 807 Cs2604 2006 08 22.20621 00 17 30.26 -00 28 41.9 03QB112 807 Cs2604 2006 10 19.23187 00 13 11.14 -00 53 57.9 23.0R 03QB112 695 Ct0452 2006 10 19.32416 00 13 10.71 -00 54 00.7 03QB112 695 Ct0452 2006 10 20.28926 00 13 06.55 -00 54 22.5 03QB112 695 Ct0452 2008 09 20.24963 00 25 27.85 +01 02 39.9 25.4R 03QB112 250 S~06Ad 2008 09 20.31074 00 25 27.56 +01 02 38.4 03QB112 250 S~06Ad 2008 09 20.31699 00 25 27.53 +01 02 38.3 03QB112 250 S~06Ad 2008 09 20.33296 00 25 27.45 +01 02 37.8 03QB112 250 S~06Ad
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 0.15 0.00 -0.27 2 0.0003 -7.49 -0.29 0.42 0.02 3 0.0215 -541.68 0.13 8.87 0.19 4 0.0217 -546.87 0.18 8.94 0.14 5 0.1557 -4127.31 -0.04 173.87 -0.28 6 0.1559 -4132.85 -0.08 174.64 0.00 7 2.9868 16579.69 0.13 3161.94 0.15 8 2.9870 16575.05 -0.07 3161.87 -0.03 9 2.9895 16520.99 -0.23 3162.93 0.02 10 3.1483 12331.61 0.34 3326.62 0.20 11 3.1486 12324.55 -0.24 3326.63 -0.25 12 3.1512 12258.41 -0.05 3331.58 0.39 13 5.0704 25375.54 0.04 5341.20 -0.24 14 5.0705 25370.88 0.03 5341.56 -0.05 15 5.0705 25370.42 0.05 5341.65 0.02 16 5.0706 25369.10 -0.05 5341.67 -0.01
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.
03QB112 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.386 44.404 44.367 ecceobj 0.113 0.114 0.113 incobj 11.313 11.313 11.313 qmin 39.045 39.039 39.039 qmax 49.201 49.253 49.178 amean 44.099 44.120 44.082 amin 44.071 44.095 44.057 amax 44.132 44.151 44.115 emean 0.107 0.107 0.106 emin 0.100 0.101 0.100 emax 0.115 0.116 0.115 imean 11.075 11.075 11.072 imin 10.489 10.489 10.487 imax 11.649 11.650 11.650 excite_mean 0.220 0.220 0.220 fracstop 1.000 1.000 1.000 cjmean 3.044 3.044 3.044 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 177.6 177.8 177.4 kozaiamp 180.0 180.0 179.9