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: 19QO110 # 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: 0.000012 0.020894 -0.000001 0.000732 0.022815 0.000000 # Chi-squared of fit: 0.66 DOF: 14 RMS: 0.05 # Min/Max residuals: -0.11 0.11 # Exact a, adot, b, bdot, g, gdot: 1.439713E-05 2.086532E-02 2.662347E-07 7.315967E-04 2.275349E-02 -2.267931E-04 # Covariance matrix: 6.6836E-13 5.2788E-13 -3.7898E-15 2.7497E-14 1.3004E-12 1.8026E-11 5.2788E-13 3.9845E-12 -2.0177E-14 1.5418E-13 4.2849E-12 1.0109E-10 -3.7898E-15 -2.0177E-14 3.5265E-13 -1.9276E-13 -2.2647E-14 -5.3618E-13 2.7497E-14 1.5418E-13 -1.9276E-13 1.8535E-13 1.6906E-13 4.1061E-12 1.3004E-12 4.2849E-12 -2.2647E-14 1.6906E-13 6.1604E-12 1.1084E-10 1.8026E-11 1.0109E-10 -5.3618E-13 4.1061E-12 1.1084E-10 2.6922E-09 # lat0 lon0 xBary yBary zBary JD0 -1.330113 -7.602452 0.305690 -0.022211 -0.956722 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 200.32991 +/- 3.015 Argument of Peri: 128.19978 +/- 3.010 Long of Asc Node: 25.07702 +/- 0.015 Inclination: 2.38391 +/- 0.001 Eccentricity: 0.04331039 +/- 0.0007 Semi-Major Axis: 43.14933394 +/- 0.0126 Time of Perihelion: 2504638.2539 +/- 866.9 Perihelion: 41.28051955 +/- 0.0336 Aphelion: 45.01814834 +/- 0.0340 Period (y) 283.4454 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 44.46218078 +/- 0.0047 Ecliptic Y -6.24945777 +/- 0.0007 Ecliptic Z -1.02017104 +/- 0.0001 Ecliptic XDOT 0.00031560 +/- 0.0000 Ecliptic YDOT 0.00249249 +/- 0.0000 Ecliptic ZDOT 0.00008842 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.91082265 +/- 0.0047 Geocenter to KBO 43.94929304 +/- 0.0048 # Hcoef: 7.40
The following table shows the complete astrometric record for 19QO110. 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 (19QO110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 34 10.797 -04 14 18.65 23.9r 19QO110 W84 C~7XLi 2019 08 28.388381 23 34 10.082 -04 14 23.29 23.9r 19QO110 W84 C~7XLi 2019 09 29.013696 23 31 58.758 -04 28 15.43 23.9r 19QO110 W84 C~7XLi 2019 09 29.177510 23 31 58.077 -04 28 19.56 23.9r 19QO110 W84 C~7XLi 2020 10 18.012125 23 35 03.779 -04 05 16.16 23.8r 19QO110 W84 C~7XLi 2020 10 18.176134 23 35 03.197 -04 05 19.59 23.8r 19QO110 W84 C~7XLi 2021 09 06.108763 23 42 14.499 -03 16 43.30 23.6r 19QO110 W84 C~7XLi 2021 09 06.196686 23 42 14.114 -03 16 45.59 23.6r 19QO110 W84 C~7XLi 2021 10 04.002582 23 40 18.312 -03 28 58.51 23.9r 19QO110 W84 C~7XLi 2021 10 04.175328 23 40 17.607 -03 29 02.79 23.9r 19QO110 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 0.05
2 0.0005 -11.66 -0.02 -0.03 -0.03
3 0.0871 -2144.88 -0.01 11.41 -0.02
4 0.0875 -2155.87 0.01 11.63 0.00
5 1.1411 942.57 0.01 184.78 0.01
6 1.1416 933.21 -0.01 185.08 0.00
7 2.0257 8020.50 0.11 301.98 -0.07
8 2.0260 8014.29 -0.11 302.17 0.08
9 2.1021 6129.60 -0.01 318.36 -0.02
10 2.1026 6118.20 0.01 318.62 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.
19QO110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.218 43.248 43.188 ecceobj 0.043 0.044 0.042 incobj 2.382 2.382 2.383 qmin 39.858 39.814 39.896 qmax 46.539 46.666 46.437 amean 43.103 43.130 43.074 amin 42.770 42.794 42.739 amax 43.465 43.482 43.424 emean 0.052 0.053 0.050 emin 0.032 0.033 0.030 emax 0.072 0.074 0.070 imean 2.143 2.127 2.145 imin 1.082 1.093 1.072 imax 3.005 2.974 3.008 excite_mean 0.065 0.066 0.064 fracstop 1.000 1.000 1.000 cjmean 3.086 3.086 3.086 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 154.1 152.2 157.3 kozaiamp 180.0 180.0 179.9