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: 19QE110 # Created Mon Apr 28 01:11:16 2025 # Orbit generated from Bernstein formalism # Fitting 8 observations of 8 # Arc: 2.10y # First observation: 2019/08/28 # Last observation: 2021/10/03 Preliminary a, adot, b, bdot, g, gdot: 0.000012 0.022957 0.000000 0.000771 0.023846 0.000000 # Chi-squared of fit: 1.52 DOF: 10 RMS: 0.08 # Min/Max residuals: -0.16 0.16 # Exact a, adot, b, bdot, g, gdot: 1.493003E-05 2.294013E-02 6.762245E-07 7.709765E-04 2.379558E-02 1.445603E-04 # Covariance matrix: 7.4070E-13 1.5353E-12 -2.7287E-15 6.7132E-14 1.7012E-12 4.1372E-11 1.5353E-12 1.7914E-11 -2.9010E-14 7.0971E-13 9.9884E-12 4.3774E-10 -2.7287E-15 -2.9010E-14 3.8293E-13 -1.9049E-13 -1.5984E-14 -7.1666E-13 6.7132E-14 7.0971E-13 -1.9049E-13 2.0816E-13 3.9248E-13 1.7530E-11 1.7012E-12 9.9884E-12 -1.5984E-14 3.9248E-13 8.4274E-12 2.4194E-10 4.1372E-11 4.3774E-10 -7.1666E-13 1.7530E-11 2.4194E-10 1.0813E-08 # lat0 lon0 xBary yBary zBary JD0 -0.413122 -8.366142 0.292908 -0.006925 -0.960944 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 9.39787 +/- 16.777 Argument of Peri: 338.40926 +/- 17.296 Long of Asc Node: 3.12528 +/- 0.006 Inclination: 1.95907 +/- 0.001 Eccentricity: 0.01491657 +/- 0.0009 Semi-Major Axis: 43.63222949 +/- 0.0129 Time of Perihelion: 2455972.3740 +/- 4905.8 Perihelion: 42.98138608 +/- 0.0428 Aphelion: 44.28307291 +/- 0.0429 Period (y) 288.2168 +/- 0.13 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.48727368 +/- 0.0051 Ecliptic Y -6.55094602 +/- 0.0008 Ecliptic Z -0.30297816 +/- 0.0000 Ecliptic XDOT 0.00040958 +/- 0.0000 Ecliptic YDOT 0.00260939 +/- 0.0000 Ecliptic ZDOT 0.00008836 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.99040724 +/- 0.0050 Geocenter to KBO 42.02460689 +/- 0.0051 # Hcoef: 8.18
The following table shows the complete astrometric record for 19QE110. 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 (19QE110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 29 54.911 -03 41 51.20 24.5r 19QE110 W84 C~7XLh 2019 08 28.388381 23 29 54.154 -03 41 55.79 24.5r 19QE110 W84 C~7XLh 2019 09 29.013696 23 27 38.019 -03 56 14.87 24.3r 19QE110 W84 C~7XLh 2019 09 29.177510 23 27 37.322 -03 56 19.12 24.3r 19QE110 W84 C~7XLh 2021 09 06.108763 23 38 48.780 -02 38 40.31 24.3r 19QE110 W84 C~7XLh 2021 09 06.196686 23 38 48.374 -02 38 42.66 24.3r 19QE110 W84 C~7XLh 2021 10 03.011907 23 36 52.742 -02 50 55.96 24.5r 19QE110 W84 C~7XLh 2021 10 03.165173 23 36 52.099 -02 50 59.98 24.5r 19QE110 W84 C~7XLh
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 0.06 0.00 -0.03
2 0.0005 -12.22 -0.06 0.25 0.09
3 0.0871 -2223.47 -0.05 13.58 -0.05
4 0.0875 -2234.73 0.04 13.78 -0.01
5 2.0257 8848.43 0.16 320.62 -0.10
6 2.0260 8841.90 -0.16 320.87 0.08
7 2.0994 6957.89 -0.04 333.84 0.03
8 2.0998 6947.44 0.04 333.96 -0.00
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.
19QE110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.685 43.746 43.631 ecceobj 0.017 0.021 0.018 incobj 1.961 1.961 1.961 qmin 41.979 42.051 41.783 qmax 45.295 45.358 45.419 amean 43.569 43.631 43.514 amin 43.236 43.298 43.184 amax 43.905 43.966 43.853 emean 0.016 0.016 0.021 emin 0.000 0.000 0.002 emax 0.032 0.032 0.036 imean 2.487 2.509 2.466 imin 1.712 1.751 1.673 imax 3.163 3.158 3.168 excite_mean 0.047 0.047 0.048 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.093 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 180.0 188.0 183.8 kozaiamp 179.9 180.0 180.0