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: 03QE112 # Created Tue Dec 31 02:08:29 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 16 observations of 16 # Arc: 18.11y # First observation: 2003/08/26 # Last observation: 2021/10/03 # Chi-squared of fit: 26.77 DOF: 26 RMS: 0.23 # Min/Max residuals: -0.44 0.46 # Exact a, adot, b, bdot, g, gdot: 1.556044E-05 2.094912E-02 -8.013054E-07 -9.178410E-04 2.281781E-02 -2.482486E-04 # Covariance matrix: 1.7199E-13 -2.9947E-14 -2.3609E-15 1.0287E-15 7.0697E-14 -6.1660E-14 -2.9947E-14 3.7755E-14 7.4237E-16 -1.5918E-15 1.7986E-14 9.5875E-14 -2.3609E-15 7.4237E-16 1.3845E-13 -9.0396E-15 -6.8888E-15 2.5091E-15 1.0287E-15 -1.5918E-15 -9.0396E-15 1.7398E-15 -4.0001E-16 -4.2584E-15 7.0697E-14 1.7986E-14 -6.8888E-15 -4.0001E-16 3.1414E-13 2.5220E-14 -6.1660E-14 9.5875E-14 2.5091E-15 -4.2584E-15 2.5220E-14 2.5639E-13 # lat0 lon0 xBary yBary zBary JD0 -3.486718 -32.041921 -0.076728 -0.061505 -1.010164 2452877.582073 # Heliocentric elements and errors Epoch: 2452878.5000 = 2003/08/27 Mean Anomaly: 193.58366 +/- 0.038 Argument of Peri: 41.33715 +/- 0.030 Long of Asc Node: 94.43160 +/- 0.001 Inclination: 4.23044 +/- 0.000 Eccentricity: 0.04780182 +/- 0.0001 Semi-Major Axis: 42.83596172 +/- 0.0038 Time of Perihelion: 2500215.9296 +/- 13.2 Perihelion: 40.78832465 +/- 0.0047 Aphelion: 44.88359879 +/- 0.0050 Period (y) 280.3632 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.97640327 +/- 0.0009 Ecliptic Y -23.67577319 +/- 0.0006 Ecliptic Z -2.66537711 +/- 0.0001 Ecliptic XDOT 0.00129746 +/- 0.0000 Ecliptic YDOT 0.00214430 +/- 0.0000 Ecliptic ZDOT -0.00010794 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.83139844 +/- 0.0008 Geocenter to KBO 43.82546392 +/- 0.0011 # Hcoef: 6.46
The following table shows the complete astrometric record for 03QE112. 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 (03QE112) followed by the observatory code and reference code for the source of the astrometry.
2003 08 26.08133 22 05 31.44 -15 27 10.1 21.5R 03QE112 807 Ci6969 2003 08 26.17293 22 05 31.04 -15 27 12.3 03QE112 807 Ci6969 2003 10 01.29139 22 03 07.44 -15 39 11.8 22.9R 03QE112 568 Ci6969 2003 10 01.36147 22 03 07.23 -15 39 12.7 03QE112 568 Ci6969 2003 10 02.31399 22 03 04.19 -15 39 26.2 03QE112 568 Ci6969 2003 10 24.11421 22 02 11.08 -15 42 52.6 22.6R 03QE112 695 Cj4700 2003 10 24.23136 22 02 10.87 -15 42 53.2 03QE112 695 Cj4700 2004 05 28.26326 22 14 16.75 -14 37 21.3 23.0R 03QE112 304 Cl8405 2004 05 28.39162 22 14 16.78 -14 37 21.9 03QE112 304 Cl8405 2004 10 11.15897 22 07 18.24 -15 19 26.1 23.6R 03QE112 695 Cl8405 2004 10 11.25182 22 07 17.97 -15 19 27.4 03QE112 695 Cl8405 2013 10 06.29525 22 49 25.98 -11 43 36.6 22.5R 03QE112 695 C~0zdV 2013 10 07.19845 22 49 22.79 -11 43 52.8 03QE112 695 C~0zdV 2021 10 03.142320 23 26 12.570 -08 11 00.58 22.7G 03QE112 G37 C~553l 2021 10 03.195300 23 26 12.325 -08 11 01.73 03QE112 G37 C~553l 2021 10 03.248300 23 26 12.122 -08 11 02.93 03QE112 G37 C~553l
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 -0.22 0.00 -0.04
2 0.0003 0.00 -0.07 0.00 -0.05
3 0.0991 0.00 0.13 0.00 0.10
4 0.0993 0.00 0.46 0.00 0.21
5 0.1019 0.00 0.45 0.00 0.25
6 0.1616 0.00 -0.26 0.00 0.07
7 0.1619 0.00 -0.44 0.00 -0.00
8 0.7561 0.00 0.01 0.00 0.10
9 0.7565 0.00 -0.02 0.00 0.02
10 1.1282 0.00 0.12 0.00 -0.01
11 1.1285 0.00 -0.18 0.00 -0.32
12 10.1142 0.00 0.44 0.00 -0.36
13 10.1167 0.00 -0.15 0.00 -0.27
14 18.1056 0.00 0.19 0.00 0.05
15 18.1057 0.00 -0.28 0.00 0.14
16 18.1059 0.00 -0.10 0.00 0.17
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.
03QE112 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.182 43.182 43.182 ecceobj 0.040 0.040 0.040 incobj 4.231 4.231 4.231 qmin 39.908 39.909 39.907 qmax 46.507 46.509 46.505 amean 43.090 43.090 43.090 amin 42.757 42.754 42.757 amax 43.437 43.438 43.435 emean 0.051 0.051 0.051 emin 0.031 0.031 0.031 emax 0.071 0.071 0.071 imean 2.532 2.532 2.532 imin 1.558 1.558 1.558 imax 3.510 3.510 3.510 excite_mean 0.067 0.067 0.067 fracstop 1.000 1.000 1.000 cjmean 3.085 3.085 3.085 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 178.9 178.9 178.8 kozaiamp 180.0 180.0 180.0