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: 19QS110 # Created Sun Apr 27 01:11:16 2025 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 2.11y # First observation: 2019/08/30 # Last observation: 2021/10/07 Preliminary a, adot, b, bdot, g, gdot: 0.000020 0.023031 0.000000 -0.000266 0.023795 0.000000 # Chi-squared of fit: 1.47 DOF: 18 RMS: 0.06 # Min/Max residuals: -0.16 0.15 # Exact a, adot, b, bdot, g, gdot: 1.527376E-05 2.299687E-02 -2.923486E-07 -2.648375E-04 2.370136E-02 -4.829339E-04 # Covariance matrix: 6.2197E-13 4.7878E-13 5.9979E-16 -8.3367E-15 1.2442E-12 1.4756E-11 4.7878E-13 3.9075E-12 6.4754E-15 -4.8320E-14 4.5722E-12 8.7143E-11 5.9979E-16 6.4754E-15 3.3031E-13 -1.9282E-13 6.5445E-15 1.5445E-13 -8.3367E-15 -4.8320E-14 -1.9282E-13 1.7937E-13 -5.8350E-14 -1.1313E-12 1.2442E-12 4.5722E-12 6.5445E-15 -5.8350E-14 6.6432E-12 1.0454E-10 1.4756E-11 8.7143E-11 1.5445E-13 -1.1313E-12 1.0454E-10 2.0417E-09 # lat0 lon0 xBary yBary zBary JD0 -1.639522 -8.508129 0.257655 -0.027767 -0.970337 2458725.713221 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 323.91462 +/- 1.995 Argument of Peri: 286.20488 +/- 2.208 Long of Asc Node: 103.78362 +/- 0.032 Inclination: 1.73625 +/- 0.000 Eccentricity: 0.03943852 +/- 0.0014 Semi-Major Axis: 44.56204511 +/- 0.0160 Time of Perihelion: 2469611.6787 +/- 602.2 Perihelion: 42.80458404 +/- 0.0623 Aphelion: 46.31950618 +/- 0.0627 Period (y) 297.4787 +/- 0.16 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 42.63504595 +/- 0.0045 Ecliptic Y -6.64509337 +/- 0.0007 Ecliptic Z -1.20716571 +/- 0.0001 Ecliptic XDOT 0.00034547 +/- 0.0000 Ecliptic YDOT 0.00263620 +/- 0.0000 Ecliptic ZDOT -0.00002921 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.16667300 +/- 0.0045 Geocenter to KBO 42.19167309 +/- 0.0046 # Hcoef: 8.09
The following table shows the complete astrometric record for 19QS110. 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 (19QS110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 30.212420 23 31 19.985 -04 52 49.66 24.5r 19QS110 W84 C~7XLi 2019 08 30.387214 23 31 19.249 -04 52 54.50 24.5r 19QS110 W84 C~7XLi 2019 09 28.012277 23 29 16.592 -05 06 06.15 24.3r 19QS110 W84 C~7XLi 2019 09 28.177548 23 29 15.889 -05 06 10.72 24.3r 19QS110 W84 C~7XLi 2020 10 16.001792 23 32 55.695 -04 43 22.73 24.3r 19QS110 W84 C~7XLi 2020 10 16.175804 23 32 55.048 -04 43 26.49 24.3r 19QS110 W84 C~7XLi 2020 10 18.012125 23 32 48.497 -04 44 06.45 24.5r 19QS110 W84 C~7XLi 2020 10 18.176134 23 32 47.906 -04 44 09.88 24.5r 19QS110 W84 C~7XLi 2021 09 05.096099 23 40 40.600 -03 54 34.10 24.2r 19QS110 W84 C~7XLi 2021 09 05.195929 23 40 40.156 -03 54 37.10 24.2r 19QS110 W84 C~7XLi 2021 10 07.004805 23 38 24.647 -04 09 09.32 24.3r 19QS110 W84 C~7XLi 2021 10 07.169933 23 38 23.961 -04 09 13.47 24.3r 19QS110 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 0.01 0.00 0.02
2 0.0005 -12.02 -0.01 -0.10 -0.03
3 0.0788 -2008.61 0.00 -4.54 0.10
4 0.0793 -2020.06 -0.01 -4.60 -0.09
5 1.1302 1538.24 -0.02 -44.43 -0.05
6 1.1306 1527.87 -0.04 -44.06 0.05
7 1.1357 1422.11 0.01 -42.05 -0.05
8 1.1361 1412.64 0.04 -41.71 0.03
9 2.0175 9089.05 0.15 -113.65 0.04
10 2.0178 9081.75 -0.16 -113.76 -0.06
11 2.1048 6871.18 0.06 -108.39 -0.02
12 2.1053 6860.10 -0.05 -108.12 0.05
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.
19QS110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.631 44.665 44.598 ecceobj 0.044 0.046 0.042 incobj 1.737 1.737 1.737 qmin 41.680 41.583 41.761 qmax 47.515 47.679 47.414 amean 44.500 44.534 44.468 amin 44.148 44.188 44.116 amax 44.869 44.899 44.830 emean 0.045 0.048 0.043 emin 0.030 0.032 0.028 emax 0.060 0.062 0.058 imean 0.606 0.601 0.610 imin 0.044 0.059 0.040 imax 1.012 1.000 1.018 excite_mean 0.047 0.049 0.044 fracstop 1.000 1.000 1.000 cjmean 3.105 3.105 3.105 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 178.7 183.4 178.3 kozaiamp 180.0 179.9 180.0