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: 19QB110 # Created Sun Apr 27 01:11:15 2025 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 2.10y # First observation: 2019/08/28 # Last observation: 2021/10/04 Preliminary a, adot, b, bdot, g, gdot: 0.000014 0.024354 -0.000001 0.001487 0.024746 0.000000 # Chi-squared of fit: 1.85 DOF: 18 RMS: 0.07 # Min/Max residuals: -0.18 0.13 # Exact a, adot, b, bdot, g, gdot: 1.555047E-05 2.434093E-02 1.314833E-06 1.487007E-03 2.468480E-02 3.072817E-04 # Covariance matrix: 6.5440E-13 4.6532E-13 -8.3890E-15 4.2605E-14 1.2344E-12 1.3790E-11 4.6532E-13 3.5580E-12 -4.4696E-14 2.3269E-13 4.0527E-12 7.5326E-11 -8.3890E-15 -4.4696E-14 3.3296E-13 -1.9691E-13 -5.2852E-14 -9.9797E-13 4.2605E-14 2.3269E-13 -1.9691E-13 1.9517E-13 2.7270E-13 5.2005E-12 1.2344E-12 4.0527E-12 -5.2852E-14 2.7270E-13 5.8792E-12 8.8273E-11 1.3790E-11 7.5326E-11 -9.9797E-13 5.2005E-12 8.8273E-11 1.6835E-09 # lat0 lon0 xBary yBary zBary JD0 -0.772998 -8.239099 0.295038 -0.012952 -0.960230 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 16.83663 +/- 3.187 Argument of Peri: 329.95076 +/- 3.384 Long of Asc Node: 3.55160 +/- 0.003 Inclination: 3.56587 +/- 0.001 Eccentricity: 0.02824972 +/- 0.0005 Semi-Major Axis: 42.62537786 +/- 0.0099 Time of Perihelion: 2453966.5627 +/- 899.8 Perihelion: 41.42122301 +/- 0.0220 Aphelion: 43.82953271 +/- 0.0222 Period (y) 278.2983 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.99994033 +/- 0.0039 Ecliptic Y -6.24142828 +/- 0.0006 Ecliptic Z -0.54647303 +/- 0.0001 Ecliptic XDOT 0.00043127 +/- 0.0000 Ecliptic YDOT 0.00266721 +/- 0.0000 Ecliptic ZDOT 0.00016423 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.47588657 +/- 0.0039 Geocenter to KBO 40.51076150 +/- 0.0040 # Hcoef: 8.60
The following table shows the complete astrometric record for 19QB110. 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 (19QB110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 30 57.139 -03 58 41.27 24.8r 19QB110 W84 C~7XLh 2019 08 28.388381 23 30 56.366 -03 58 45.92 24.8r 19QB110 W84 C~7XLh 2019 09 29.013696 23 28 35.384 -04 13 22.66 24.5r 19QB110 W84 C~7XLh 2019 09 29.177510 23 28 34.663 -04 13 27.11 24.5r 19QB110 W84 C~7XLh 2020 10 17.010669 23 32 19.110 -03 43 26.30 24.8r 19QB110 W84 C~7XLh 2020 10 17.174574 23 32 18.482 -03 43 30.16 24.8r 19QB110 W84 C~7XLh 2020 10 18.012125 23 32 15.406 -03 43 48.76 24.7r 19QB110 W84 C~7XLh 2020 10 18.176134 23 32 14.795 -03 43 52.36 24.7r 19QB110 W84 C~7XLh 2021 09 06.108763 23 40 17.194 -02 47 13.30 24.6r 19QB110 W84 C~7XLh 2021 09 06.196686 23 40 16.781 -02 47 15.88 24.6r 19QB110 W84 C~7XLh 2021 10 04.002582 23 38 12.766 -03 00 09.97 24.7r 19QB110 W84 C~7XLh 2021 10 04.175328 23 38 12.005 -03 00 14.59 24.7r 19QB110 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 0.01 0.00 -0.07
2 0.0005 -12.46 0.03 0.29 0.05
3 0.0871 -2296.68 -0.04 26.25 0.08
4 0.0875 -2308.35 0.02 26.41 -0.01
5 1.1384 1488.39 0.01 356.30 0.09
6 1.1388 1478.23 -0.13 356.47 -0.05
7 1.1411 1428.58 0.02 357.57 -0.06
8 1.1416 1418.76 0.08 357.87 -0.06
9 2.0257 9404.91 0.13 619.13 0.02
10 2.0260 9398.20 -0.18 619.21 0.01
11 2.1021 7382.35 0.09 645.36 -0.00
12 2.1026 7370.04 -0.03 645.63 0.01
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.
19QB110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.670 42.693 42.647 ecceobj 0.029 0.030 0.029 incobj 3.564 3.564 3.564 qmin 40.451 40.471 40.449 qmax 44.871 44.900 44.828 amean 42.565 42.588 42.542 amin 42.241 42.262 42.220 amax 42.896 42.922 42.873 emean 0.028 0.028 0.027 emin 0.004 0.005 0.004 emax 0.046 0.046 0.046 imean 3.600 3.597 3.601 imin 2.336 2.326 2.332 imax 4.576 4.572 4.577 excite_mean 0.069 0.069 0.069 fracstop 1.000 1.000 1.000 cjmean 3.079 3.079 3.078 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 178.5 178.2 178.8 kozaiamp 180.0 180.0 180.0