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 Sun Apr 21 01:11:33 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 18 observations of 18 # Arc: 11.09y # First observation: 2003/08/26 # Last observation: 2014/09/27 # Chi-squared of fit: 16.37 DOF: 30 RMS: 0.17 # Min/Max residuals: -0.32 0.33 # Exact a, adot, b, bdot, g, gdot: 1.546540E-05 2.642869E-02 4.335760E-06 5.132235E-03 2.577712E-02 1.471608E-03 # Covariance matrix: 3.0524E-13 -7.4328E-14 1.3335E-14 -1.0684E-14 1.9771E-13 -1.9767E-13 -7.4328E-14 5.2931E-14 -1.1449E-14 9.2134E-15 2.5407E-14 1.7037E-13 1.3335E-14 -1.1449E-14 1.6991E-13 -2.7228E-14 -3.8237E-15 -4.2826E-14 -1.0684E-14 9.2134E-15 -2.7228E-14 9.0882E-15 3.2031E-15 3.4457E-14 1.9771E-13 2.5407E-14 -3.8237E-15 3.2031E-15 6.1221E-13 5.8924E-14 -1.9767E-13 1.7037E-13 -4.2826E-14 3.4457E-14 5.8924E-14 6.3717E-13 # lat0 lon0 xBary yBary zBary JD0 -3.063811 -0.755886 0.456554 -0.048384 -0.905103 2452877.803963 # Heliocentric elements and errors Epoch: 2452878.5000 = 2003/08/27 Mean Anomaly: 21.19130 +/- 0.021 Argument of Peri: 318.52746 +/- 0.025 Long of Asc Node: 13.67497 +/- 0.000 Inclination: 11.36250 +/- 0.000 Eccentricity: 0.10436938 +/- 0.0001 Semi-Major Axis: 43.89794221 +/- 0.0061 Time of Perihelion: 2446625.0473 +/- 6.2 Perihelion: 39.31634137 +/- 0.0068 Aphelion: 48.47954304 +/- 0.0078 Period (y) 290.8536 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.63275589 +/- 0.0012 Ecliptic Y -0.97531029 +/- 0.0000 Ecliptic Z -2.07332411 +/- 0.0001 Ecliptic XDOT 0.00021699 +/- 0.0000 Ecliptic YDOT 0.00279864 +/- 0.0000 Ecliptic ZDOT 0.00053615 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.69890574 +/- 0.0012 Geocenter to KBO 38.79409035 +/- 0.0012 # Hcoef: 7.53
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 2014 09 27.41390 00 55 00.01 +06 07 06.8 23.8R 03QB112 695 C~1LJE 2014 09 27.46699 00 54 59.77 +06 07 05.3 03QB112 695 C~1LJE
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 0.24 0.00 -0.16
2 0.0003 0.00 -0.28 0.00 -0.07
3 0.0215 0.00 0.04 0.00 0.25
4 0.0217 0.00 0.10 0.00 0.21
5 0.1557 0.00 0.08 0.00 -0.25
6 0.1559 0.00 -0.07 0.00 -0.02
7 2.9868 0.00 0.06 0.00 0.19
8 2.9870 0.00 -0.06 0.00 -0.05
9 2.9895 0.00 -0.22 0.00 -0.07
10 3.1483 0.00 0.22 0.00 0.32
11 3.1486 0.00 -0.13 0.00 -0.32
12 3.1512 0.00 -0.21 0.00 0.33
13 5.0704 0.00 0.19 0.00 -0.17
14 5.0705 0.00 0.11 0.00 -0.00
15 5.0705 0.00 0.10 0.00 0.07
16 5.0706 0.00 0.02 0.00 0.00
17 11.0886 0.00 -0.11 0.00 0.10
18 11.0887 0.00 0.05 0.00 -0.02
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 44.388 44.388 44.388 ecceobj 0.114 0.114 0.114 incobj 11.313 11.313 11.313 qmin 38.638 38.636 38.640 qmax 49.833 49.834 49.858 amean 44.102 44.105 44.100 amin 43.752 43.747 43.752 amax 44.496 44.495 44.482 emean 0.107 0.107 0.107 emin 0.094 0.094 0.094 emax 0.121 0.121 0.121 imean 11.075 11.075 11.074 imin 10.462 10.454 10.455 imax 11.688 11.688 11.688 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 177.9 177.7 177.9 kozaiamp 180.0 180.0 180.0