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: 19QR110 # Created Tue Apr 1 01:11:15 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.11y # First observation: 2019/08/30 # Last observation: 2021/10/07 Preliminary a, adot, b, bdot, g, gdot: 0.000012 0.021854 -0.000001 -0.000002 0.023302 0.000000 # Chi-squared of fit: 3.95 DOF: 14 RMS: 0.11 # Min/Max residuals: -0.27 0.16 # Exact a, adot, b, bdot, g, gdot: 1.495379E-05 2.186192E-02 -7.660098E-07 -1.937877E-06 2.326191E-02 4.998504E-04 # Covariance matrix: 6.3766E-13 5.7810E-13 -4.7908E-16 -2.4070E-16 1.3219E-12 1.8210E-11 5.7810E-13 4.6280E-12 -1.1865E-15 -7.0433E-16 5.0244E-12 1.1115E-10 -4.7908E-16 -1.1865E-15 3.5099E-13 -1.9114E-13 -2.1478E-15 -2.7845E-14 -2.4070E-16 -7.0433E-16 -1.9114E-13 1.7924E-13 -1.1461E-15 -1.6816E-14 1.3219E-12 5.0244E-12 -2.1478E-15 -1.1461E-15 7.0107E-12 1.2256E-10 1.8210E-11 1.1115E-10 -2.7845E-14 -1.6816E-14 1.2256E-10 2.7836E-09 # lat0 lon0 xBary yBary zBary JD0 -1.478832 -8.378359 0.259853 -0.025031 -0.969826 2458725.713221 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 124.43036 +/- 3.174 Argument of Peri: 142.67566 +/- 3.176 Long of Asc Node: 81.86675 +/- 0.044 Inclination: 1.44617 +/- 0.000 Eccentricity: 0.02459576 +/- 0.0019 Semi-Major Axis: 43.34270881 +/- 0.0095 Time of Perihelion: 2422696.1328 +/- 918.8 Perihelion: 42.27666196 +/- 0.0849 Aphelion: 44.40875566 +/- 0.0850 Period (y) 285.3529 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 43.44053580 +/- 0.0048 Ecliptic Y -6.66717735 +/- 0.0007 Ecliptic Z -1.10947083 +/- 0.0001 Ecliptic XDOT 0.00044156 +/- 0.0000 Ecliptic YDOT 0.00253763 +/- 0.0000 Ecliptic ZDOT -0.00000197 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.96319290 +/- 0.0048 Geocenter to KBO 42.98872373 +/- 0.0049 # Hcoef: 8.79
The following table shows the complete astrometric record for 19QR110. 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 (19QR110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 30.212420 23 31 33.408 -04 40 53.79 25.2r 19QR110 W84 C~7XLi 2019 08 30.387214 23 31 32.698 -04 40 58.84 25.2r 19QR110 W84 C~7XLi 2019 09 28.012277 23 29 31.545 -04 53 56.43 24.9r 19QR110 W84 C~7XLi 2019 09 28.177548 23 29 30.834 -04 54 00.86 24.9r 19QR110 W84 C~7XLi 2020 10 18.012125 23 32 48.383 -04 32 33.39 25.2r 19QR110 W84 C~7XLi 2020 10 18.176134 23 32 47.791 -04 32 37.12 25.2r 19QR110 W84 C~7XLi 2021 09 05.096099 23 40 21.520 -03 44 09.20 25.1r 19QR110 W84 C~7XLi 2021 09 05.195929 23 40 21.092 -03 44 11.68 25.1r 19QR110 W84 C~7XLi 2021 10 07.004805 23 38 07.466 -03 58 27.98 25.2r 19QR110 W84 C~7XLi 2021 10 07.169933 23 38 06.783 -03 58 32.07 25.2r 19QR110 W84 C~7XLi
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 -0.02 0.00 0.16
2 0.0005 -11.75 0.07 -0.45 -0.27
3 0.0788 -1982.64 0.09 -0.53 0.06
4 0.0793 -1994.15 -0.12 -0.42 0.03
5 1.1357 1227.50 0.09 16.85 0.12
6 1.1361 1217.89 -0.13 16.92 -0.07
7 2.0175 8607.59 -0.04 -4.03 -0.11
8 2.0178 8600.72 -0.03 -3.76 0.15
9 2.1048 6422.36 0.15 4.59 -0.08
10 2.1053 6411.35 -0.05 4.89 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.
19QR110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.388 43.415 43.361 ecceobj 0.020 0.020 0.020 incobj 1.447 1.447 1.447 qmin 41.547 41.625 41.530 qmax 45.154 45.171 45.115 amean 43.279 43.306 43.252 amin 42.948 42.975 42.923 amax 43.611 43.637 43.585 emean 0.018 0.018 0.018 emin 0.000 0.000 0.000 emax 0.036 0.035 0.036 imean 0.858 0.846 0.870 imin 0.356 0.348 0.365 imax 1.214 1.201 1.227 excite_mean 0.025 0.025 0.025 fracstop 1.000 1.000 1.000 cjmean 3.092 3.093 3.092 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 181.7 180.7 182.1 kozaiamp 179.9 180.0 180.0