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: 19QG110 # Created Tue Apr 1 01:11:14 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.10y # First observation: 2019/08/28 # Last observation: 2021/10/04 Preliminary a, adot, b, bdot, g, gdot: 0.000014 0.019633 0.000000 -0.000000 0.022017 0.000000 # Chi-squared of fit: 8.57 DOF: 14 RMS: 0.16 # Min/Max residuals: -0.50 0.34 # Exact a, adot, b, bdot, g, gdot: 1.327652E-05 1.958521E-02 2.778501E-07 -4.156448E-07 2.193970E-02 -8.467245E-04 # Covariance matrix: 6.7850E-13 5.7502E-13 -7.9008E-17 -1.5469E-17 1.3448E-12 2.0671E-11 5.7502E-13 4.0167E-12 -6.3052E-17 -2.3302E-16 4.4288E-12 1.0905E-10 -7.9008E-17 -6.3052E-17 3.5304E-13 -1.9211E-13 -2.5005E-16 -1.3573E-15 -1.5469E-17 -2.3302E-16 -1.9211E-13 1.7882E-13 -1.8584E-16 -6.8243E-15 1.3448E-12 4.4288E-12 -2.5005E-16 -1.8584E-16 6.3376E-12 1.2283E-10 2.0671E-11 1.0905E-10 -1.3573E-15 -6.8243E-15 1.2283E-10 3.1058E-09 # lat0 lon0 xBary yBary zBary JD0 -0.347806 -7.315521 0.310479 -0.005796 -0.955419 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 221.46981 +/- 1.718 Argument of Peri: 52.54085 +/- 1.708 Long of Asc Node: 83.52921 +/- 0.208 Inclination: 0.34069 +/- 0.000 Eccentricity: 0.07418116 +/- 0.0015 Semi-Major Axis: 43.99669966 +/- 0.0192 Time of Perihelion: 2499738.1231 +/- 508.1 Perihelion: 40.73297354 +/- 0.0702 Aphelion: 47.26042578 +/- 0.0709 Period (y) 291.8357 +/- 0.19 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 46.11856370 +/- 0.0052 Ecliptic Y -6.24029055 +/- 0.0007 Ecliptic Z -0.27666753 +/- 0.0000 Ecliptic XDOT 0.00021487 +/- 0.0000 Ecliptic YDOT 0.00243816 +/- 0.0000 Ecliptic ZDOT 0.00000036 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 46.53965716 +/- 0.0051 Geocenter to KBO 45.57947562 +/- 0.0052 # Hcoef: 8.47
The following table shows the complete astrometric record for 19QG110. 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 (19QG110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 33 40.799 -03 13 22.07 25.2r 19QG110 W84 C~7XLh 2019 08 28.388381 23 33 40.090 -03 13 26.49 25.2r 19QG110 W84 C~7XLh 2019 09 29.013696 23 31 33.341 -03 27 02.92 25.0r 19QG110 W84 C~7XLh 2019 09 29.177510 23 31 32.685 -03 27 07.16 25.0r 19QG110 W84 C~7XLh 2020 10 21.004397 23 34 18.813 -03 09 12.81 25.0r 19QG110 W84 C~7XLh 2020 10 21.174149 23 34 18.272 -03 09 16.49 25.0r 19QG110 W84 C~7XLh 2021 09 06.108763 23 41 21.546 -02 23 47.45 25.0r 19QG110 W84 C~7XLh 2021 09 06.196686 23 41 21.143 -02 23 50.18 25.0r 19QG110 W84 C~7XLh 2021 10 04.002582 23 39 29.283 -02 35 52.68 25.0r 19QG110 W84 C~7XLh 2021 10 04.175328 23 39 28.589 -02 35 57.00 25.0r 19QG110 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 0.17 0.00 -0.06
2 0.0005 -11.50 -0.09 0.14 0.03
3 0.0871 -2077.73 -0.01 -0.37 0.03
4 0.0875 -2088.43 -0.03 -0.39 -0.06
5 1.1493 621.49 -0.10 3.95 0.21
6 1.1498 612.59 0.01 3.77 -0.08
7 2.0257 7519.81 0.34 -1.71 -0.01
8 2.0260 7513.18 -0.50 -1.82 -0.15
9 2.1021 5685.92 0.19 -0.43 0.01
10 2.1026 5674.65 0.01 -0.27 0.07
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.
19QG110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.088 44.134 44.044 ecceobj 0.075 0.079 0.072 incobj 0.340 0.340 0.340 qmin 39.423 39.282 39.475 qmax 48.803 49.026 48.598 amean 43.964 44.008 43.921 amin 43.618 43.643 43.580 amax 44.345 44.387 44.299 emean 0.083 0.087 0.080 emin 0.066 0.070 0.062 emax 0.101 0.105 0.098 imean 1.421 1.398 1.435 imin 0.528 0.445 0.558 imax 2.148 2.149 2.151 excite_mean 0.088 0.091 0.085 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 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 173.7 177.5 172.4 kozaiamp 180.0 180.0 180.0