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: 19QT110 # Created Sun Apr 27 01:11:16 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.10y # First observation: 2019/08/30 # Last observation: 2021/10/04 Preliminary a, adot, b, bdot, g, gdot: 0.000028 0.025818 -0.000004 0.003088 0.025267 0.000000 # Chi-squared of fit: 1.32 DOF: 14 RMS: 0.06 # Min/Max residuals: -0.15 0.12 # Exact a, adot, b, bdot, g, gdot: 1.573109E-05 2.571646E-02 1.811581E-06 3.075738E-03 2.510320E-02 -1.591992E-03 # Covariance matrix: 6.4129E-13 5.6991E-13 -1.2652E-14 9.6697E-14 1.3080E-12 1.5061E-11 5.6991E-13 4.8988E-12 -8.0854E-14 6.3170E-13 5.0586E-12 9.8344E-11 -1.2652E-14 -8.0854E-14 3.5231E-13 -2.0209E-13 -8.5520E-14 -1.6865E-12 9.6697E-14 6.3170E-13 -2.0209E-13 2.6358E-13 6.6183E-13 1.3187E-11 1.3080E-12 5.0586E-12 -8.5520E-14 6.6183E-13 6.8669E-12 1.0305E-10 1.5061E-11 9.8344E-11 -1.6865E-12 1.3187E-11 1.0305E-10 2.0529E-09 # lat0 lon0 xBary yBary zBary JD0 -1.628782 -7.840718 0.268945 -0.027498 -0.967277 2458725.713221 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 332.18145 +/- 0.524 Argument of Peri: 22.25650 +/- 0.710 Long of Asc Node: 4.85066 +/- 0.002 Inclination: 6.99294 +/- 0.001 Eccentricity: 0.12369118 +/- 0.0012 Semi-Major Axis: 45.61835437 +/- 0.0238 Time of Perihelion: 2467416.9079 +/- 163.6 Perihelion: 39.97576627 +/- 0.0586 Aphelion: 51.26094247 +/- 0.0610 Period (y) 308.1184 +/- 0.24 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.37196640 +/- 0.0041 Ecliptic Y -5.83757530 +/- 0.0006 Ecliptic Z -1.13220588 +/- 0.0001 Ecliptic XDOT 0.00022859 +/- 0.0000 Ecliptic YDOT 0.00280147 +/- 0.0000 Ecliptic ZDOT 0.00034003 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.80753419 +/- 0.0041 Geocenter to KBO 39.83555580 +/- 0.0042 # Hcoef: 8.86
The following table shows the complete astrometric record for 19QT110. 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 (19QT110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 30.212420 23 33 46.556 -04 36 25.26 24.9r 19QT110 W84 C~7XLi 2019 08 30.387214 23 33 45.767 -04 36 29.94 24.9r 19QT110 W84 C~7XLi 2019 09 28.012277 23 31 35.881 -04 49 32.12 24.8r 19QT110 W84 C~7XLi 2019 09 28.177548 23 31 35.118 -04 49 36.33 24.8r 19QT110 W84 C~7XLi 2020 10 18.012125 23 35 18.636 -04 13 07.53 24.9r 19QT110 W84 C~7XLi 2020 10 18.176134 23 35 17.999 -04 13 11.01 24.9r 19QT110 W84 C~7XLi 2021 09 06.108763 23 43 34.373 -03 09 45.94 24.8r 19QT110 W84 C~7XLi 2021 09 06.196686 23 43 33.965 -03 09 48.33 24.8r 19QT110 W84 C~7XLi 2021 10 04.002582 23 41 27.572 -03 22 29.57 24.9r 19QT110 W84 C~7XLi 2021 10 04.175328 23 41 26.798 -03 22 34.03 24.9r 19QT110 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 0.10 0.00 0.03
2 0.0005 -12.69 -0.06 0.36 0.12
3 0.0788 -2105.52 0.04 48.71 -0.15
4 0.0793 -2117.66 -0.07 49.34 0.04
5 1.1357 1817.74 0.03 739.00 -0.06
6 1.1361 1807.61 -0.04 739.57 -0.04
7 2.0203 10145.91 0.03 1283.55 0.02
8 2.0205 10139.33 -0.07 1283.79 0.09
9 2.0966 8095.87 0.04 1337.96 -0.04
10 2.0971 8083.45 0.01 1338.47 -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.
19QT110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.716 45.761 45.672 ecceobj 0.128 0.130 0.126 incobj 6.982 6.983 6.982 qmin 39.077 39.020 39.118 qmax 52.394 52.473 52.242 amean 45.559 45.602 45.518 amin 45.173 45.224 45.134 amax 45.974 46.021 45.935 emean 0.125 0.127 0.124 emin 0.112 0.114 0.110 emax 0.140 0.141 0.138 imean 7.018 7.019 7.011 imin 6.402 6.394 6.434 imax 7.565 7.569 7.565 excite_mean 0.175 0.177 0.174 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 174.3 174.3 173.9 kozaiamp 180.0 179.9 180.0