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: 19QM110 # Created Sun Apr 27 01:11:16 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: 0.000030 0.027936 -0.000005 0.004453 0.026717 0.000000 # Chi-squared of fit: 4.29 DOF: 14 RMS: 0.12 # Min/Max residuals: -0.40 0.18 # Exact a, adot, b, bdot, g, gdot: 1.645525E-05 2.783545E-02 3.001028E-06 4.437806E-03 2.655575E-02 -1.205334E-03 # Covariance matrix: 6.4931E-13 5.0658E-13 -1.5557E-14 1.1848E-13 1.2117E-12 1.2734E-11 5.0658E-13 4.4037E-12 -9.9078E-14 7.6171E-13 4.3306E-12 8.1869E-11 -1.5557E-14 -9.9078E-14 3.5482E-13 -2.0974E-13 -9.9306E-14 -1.9235E-12 1.1848E-13 7.6171E-13 -2.0974E-13 3.1627E-13 7.6040E-13 1.4792E-11 1.2117E-12 4.3306E-12 -9.9306E-14 7.6040E-13 5.7941E-12 8.1728E-11 1.2734E-11 8.1869E-11 -1.9235E-12 1.4792E-11 8.1728E-11 1.5899E-09 # lat0 lon0 xBary yBary zBary JD0 -1.225865 -7.891017 0.300867 -0.020502 -0.958288 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 338.46927 +/- 0.522 Argument of Peri: 19.54875 +/- 0.678 Long of Asc Node: 359.11558 +/- 0.001 Inclination: 9.12495 +/- 0.001 Eccentricity: 0.11537170 +/- 0.0008 Semi-Major Axis: 43.16064331 +/- 0.0165 Time of Perihelion: 2464914.7185 +/- 150.3 Perihelion: 38.18112660 +/- 0.0369 Aphelion: 48.14016002 +/- 0.0385 Period (y) 283.5568 +/- 0.16 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.20246429 +/- 0.0034 Ecliptic Y -5.60526514 +/- 0.0005 Ecliptic Z -0.80550112 +/- 0.0001 Ecliptic XDOT 0.00028908 +/- 0.0000 Ecliptic YDOT 0.00285889 +/- 0.0000 Ecliptic ZDOT 0.00045986 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.61989264 +/- 0.0033 Geocenter to KBO 37.65662282 +/- 0.0034 # Hcoef: 9.56
The following table shows the complete astrometric record for 19QM110. 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 (19QM110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 32 57.105 -04 15 24.39 25.3r 19QM110 W84 C~7XLi 2019 08 28.388381 23 32 56.276 -04 15 29.18 25.3r 19QM110 W84 C~7XLi 2019 09 29.013696 23 30 25.060 -04 30 15.97 25.3r 19QM110 W84 C~7XLi 2019 09 29.177510 23 30 24.295 -04 30 20.36 25.3r 19QM110 W84 C~7XLi 2020 10 18.012125 23 34 27.194 -03 46 33.06 25.4r 19QM110 W84 C~7XLi 2020 10 18.176134 23 34 26.535 -03 46 36.73 25.4r 19QM110 W84 C~7XLi 2021 09 06.108763 23 43 12.324 -02 35 25.67 25.3r 19QM110 W84 C~7XLi 2021 09 06.196686 23 43 11.879 -02 35 27.78 25.3r 19QM110 W84 C~7XLi 2021 10 04.002582 23 40 58.416 -02 48 32.89 25.3r 19QM110 W84 C~7XLi 2021 10 04.175328 23 40 57.604 -02 48 37.65 25.3r 19QM110 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 -0.07
2 0.0005 -13.28 -0.03 0.50 -0.00
3 0.0871 -2441.40 -0.12 78.41 0.06
4 0.0875 -2453.65 0.13 78.88 -0.02
5 1.1411 1922.70 -0.04 1057.45 0.11
6 1.1416 1912.19 0.02 1057.99 0.01
7 2.0257 10845.08 0.07 1857.29 -0.40
8 2.0260 10838.10 -0.08 1858.01 0.07
9 2.1021 8686.15 0.02 1931.68 0.18
10 2.1026 8673.07 -0.00 1932.14 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.
19QM110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.231 43.260 43.202 ecceobj 0.119 0.120 0.118 incobj 9.112 9.112 9.112 qmin 36.901 36.792 37.036 qmax 49.752 50.009 49.441 amean 43.116 43.147 43.077 amin 42.750 42.744 42.720 amax 43.529 43.569 43.476 emean 0.117 0.121 0.115 emin 0.092 0.096 0.094 emax 0.143 0.148 0.138 imean 8.571 8.489 8.592 imin 7.282 7.195 7.343 imax 10.011 10.004 9.974 excite_mean 0.190 0.191 0.189 fracstop 1.000 1.000 1.000 cjmean 3.048 3.048 3.048 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 176.6 175.1 177.1 kozaiamp 180.0 180.0 179.9