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: 19QZ110 # Created Wed May 8 01:18:19 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 10 # Arc: 2.10y # First observation: 2019/08/30 # Last observation: 2021/10/04 Preliminary a, adot, b, bdot, g, gdot: 0.000002 0.031229 -0.000001 0.005414 0.028889 0.000000 # Chi-squared of fit: 4.07 DOF: 12 RMS: 0.12 # Min/Max residuals: -0.26 0.31 # Exact a, adot, b, bdot, g, gdot: 1.717355E-05 3.134291E-02 3.041909E-06 5.441028E-03 2.892121E-02 2.609908E-03 # Covariance matrix: 6.5568E-13 5.6886E-13 -1.6847E-14 1.3096E-13 1.3401E-12 1.1765E-11 5.6886E-13 5.0559E-12 -1.1627E-13 9.2384E-13 5.0782E-12 8.2873E-11 -1.6847E-14 -1.1627E-13 3.5530E-13 -2.1921E-13 -1.1728E-13 -1.9977E-12 1.3096E-13 9.2384E-13 -2.1921E-13 3.8308E-13 9.2328E-13 1.5894E-11 1.3401E-12 5.0782E-12 -1.1728E-13 9.2328E-13 6.9067E-12 8.2874E-11 1.1765E-11 8.2873E-11 -1.9977E-12 1.5894E-11 8.2874E-11 1.4256E-09 # lat0 lon0 xBary yBary zBary JD0 -1.905718 -8.164149 0.263478 -0.032223 -0.968634 2458725.713221 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 33.47268 +/- 0.324 Argument of Peri: 306.72117 +/- 0.458 Long of Asc Node: 1.98518 +/- 0.001 Inclination: 9.99058 +/- 0.001 Eccentricity: 0.12498999 +/- 0.0008 Semi-Major Axis: 39.44053466 +/- 0.0090 Time of Perihelion: 2450308.4734 +/- 81.3 Perihelion: 34.51086272 +/- 0.0333 Aphelion: 44.37020659 +/- 0.0339 Period (y) 247.6979 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 35.13211326 +/- 0.0031 Ecliptic Y -5.31295883 +/- 0.0005 Ecliptic Z -1.14974137 +/- 0.0001 Ecliptic XDOT 0.00069121 +/- 0.0000 Ecliptic YDOT 0.00290012 +/- 0.0000 Ecliptic ZDOT 0.00050635 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.55017326 +/- 0.0031 Geocenter to KBO 34.57669637 +/- 0.0031 # Hcoef: 9.80
The following table shows the complete astrometric record for 19QZ110. 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 (19QZ110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 30.212420 23 33 01.403 -04 59 21.07 25.2r 19QZ110 W84 C~7XLi 2019 08 30.387214 23 33 00.511 -04 59 26.30 25.2r 19QZ110 W84 C~7XLi 2019 09 28.012277 23 30 31.706 -05 13 46.90 25.1r 19QZ110 W84 C~7XLi 2019 09 28.177548 23 30 30.814 -05 13 51.94 25.1r 19QZ110 W84 C~7XLi 2020 10 18.012125 23 34 59.955 -04 23 09.51 25.2r 19QZ110 W84 C~7XLi 2020 10 18.176134 23 34 59.235 -04 23 13.19 25.2r 19QZ110 W84 C~7XLi 2021 09 06.108763 23 44 35.737 -03 03 34.30 25.3r 19QZ110 W84 C~7XLi 2021 09 06.196686 23 44 35.277 -03 03 35.87 25.3r 19QZ110 W84 C~7XLi 2021 10 04.002582 23 42 11.541 -03 17 31.07 25.3r 19QZ110 W84 C~7XLi 2021 10 04.175328 23 42 10.654 -03 17 35.72 25.3r 19QZ110 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 -0.01 0.00 -0.01
2 0.0005 -14.31 -0.03 0.46 -0.03
3 0.0788 -2396.79 0.31 87.49 0.01
4 0.0793 -2411.02 -0.26 88.12 -0.07
5 1.1357 2486.93 -0.01 1293.43 0.09
6 1.1361 2475.58 -0.01 1294.31 0.14
7 2.0203 12307.99 0.02 2254.25 -0.14
8 2.0205 12301.02 ( 0.39) 2255.56 ( 0.88)
9 2.0966 9986.88 0.01 2346.09 -0.13
10 2.0971 9972.81 -0.02 2347.11 0.14
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.
19QZ110 quality flag:2 Type: 3:2E SCATNEAR SCATNEAR axisobj 39.443 39.484 39.403 ecceobj 0.124 0.126 0.122 incobj 9.969 9.970 9.970 qmin 31.834 30.601 32.107 qmax 47.795 49.327 47.704 amean 39.457 39.464 39.437 amin 38.895 38.786 38.820 amax 40.105 40.209 40.134 emean 0.161 0.166 0.138 emin 0.087 0.085 0.081 emax 0.194 0.229 0.191 imean 10.516 8.646 17.034 imin 9.223 6.588 10.494 imax 11.936 11.829 20.669 excite_mean 0.244 0.226 0.324 fracstop 1.000 1.000 1.000 cjmean 2.982 2.992 2.927 libcent 0 185.4 -180.0 -180.0 libamp 0 163.9 -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 178.7 184.6 170.2 kozaiamp 179.9 180.0 180.0