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: 19QH110 # Created Mon Apr 28 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: -0.000001 0.024741 -0.000000 0.000169 0.024710 0.000000 # Chi-squared of fit: 0.74 DOF: 14 RMS: 0.05 # Min/Max residuals: -0.11 0.11 # Exact a, adot, b, bdot, g, gdot: 1.563745E-05 2.480680E-02 1.302964E-07 1.694901E-04 2.473354E-02 2.122865E-03 # Covariance matrix: 6.5953E-13 5.3683E-13 -8.1127E-16 5.3153E-15 1.2639E-12 1.5173E-11 5.3683E-13 4.4052E-12 -4.2969E-15 3.2551E-14 4.4570E-12 9.3281E-11 -8.1127E-16 -4.2969E-15 3.5278E-13 -1.9218E-13 -4.7238E-15 -9.4506E-14 5.3153E-15 3.2551E-14 -1.9218E-13 1.8014E-13 3.3514E-14 7.2015E-13 1.2639E-12 4.4570E-12 -4.7238E-15 3.3514E-14 6.0548E-12 9.5879E-11 1.5173E-11 9.3281E-11 -9.4506E-14 7.2015E-13 9.5879E-11 2.0640E-09 # lat0 lon0 xBary yBary zBary JD0 -0.816971 -7.323601 0.310344 -0.013620 -0.955384 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 46.73613 +/- 0.431 Argument of Peri: 239.39329 +/- 0.633 Long of Asc Node: 56.71679 +/- 0.057 Inclination: 0.88427 +/- 0.000 Eccentricity: 0.10295888 +/- 0.0016 Semi-Major Axis: 44.23546390 +/- 0.0125 Time of Perihelion: 2444769.5258 +/- 128.5 Perihelion: 39.68103001 +/- 0.0700 Aphelion: 48.78989780 +/- 0.0704 Period (y) 294.2145 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.00795201 +/- 0.0040 Ecliptic Y -5.58991885 +/- 0.0005 Ecliptic Z -0.57647072 +/- 0.0001 Ecliptic XDOT 0.00059181 +/- 0.0000 Ecliptic YDOT 0.00269414 +/- 0.0000 Ecliptic ZDOT 0.00001518 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.39120244 +/- 0.0040 Geocenter to KBO 40.43092096 +/- 0.0040 # Hcoef: 8.32
The following table shows the complete astrometric record for 19QH110. 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 (19QH110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 34 23.600 -03 39 25.03 24.5r 19QH110 W84 C~7XLh 2019 08 28.388381 23 34 22.833 -03 39 29.94 24.5r 19QH110 W84 C~7XLh 2019 09 29.013696 23 32 02.840 -03 54 29.01 24.4r 19QH110 W84 C~7XLh 2019 09 29.177510 23 32 02.110 -03 54 33.60 24.4r 19QH110 W84 C~7XLh 2020 10 18.012125 23 35 55.374 -03 28 41.18 24.4r 19QH110 W84 C~7XLh 2020 10 18.176134 23 35 54.752 -03 28 44.88 24.4r 19QH110 W84 C~7XLh 2021 09 06.108763 23 44 07.750 -02 35 13.23 24.4r 19QH110 W84 C~7XLh 2021 09 06.196686 23 44 07.349 -02 35 15.90 24.4r 19QH110 W84 C~7XLh 2021 10 04.002582 23 42 04.304 -02 48 27.56 24.3r 19QH110 W84 C~7XLh 2021 10 04.175328 23 42 03.550 -02 48 32.28 24.3r 19QH110 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 0.05 0.00 -0.00
2 0.0005 -12.49 -0.05 0.03 -0.01
3 0.0871 -2292.64 0.04 1.79 0.02
4 0.0875 -2304.49 -0.04 1.89 -0.01
5 1.1411 1516.59 0.02 47.91 -0.04
6 1.1416 1506.57 -0.02 48.20 0.05
7 2.0257 9566.08 0.11 67.52 0.02
8 2.0260 9559.49 -0.11 67.46 -0.07
9 2.1021 7549.62 0.02 73.36 0.03
10 2.1026 7537.36 -0.02 73.51 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.
19QH110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.259 44.307 44.212 ecceobj 0.101 0.105 0.098 incobj 0.886 0.886 0.886 qmin 39.187 39.046 39.256 qmax 49.377 49.648 49.242 amean 44.143 44.195 44.099 amin 43.783 43.836 43.732 amax 44.508 44.587 44.486 emean 0.093 0.097 0.090 emin 0.076 0.080 0.073 emax 0.110 0.114 0.107 imean 1.357 1.361 1.350 imin 0.508 0.515 0.502 imax 2.019 2.033 2.008 excite_mean 0.096 0.100 0.093 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 183.6 186.2 184.2 kozaiamp 180.0 180.0 180.0