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: 22HQ19 # Created Tue May 7 01:18:07 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 12 observations of 12 # Arc: 8.99y # First observation: 2014/05/21 # Last observation: 2023/05/17 # Chi-squared of fit: 7.10 DOF: 18 RMS: 0.14 # Min/Max residuals: -0.24 0.37 # Exact a, adot, b, bdot, g, gdot: 1.266516E-05 1.535005E-02 -3.075174E-06 -3.615543E-03 1.912059E-02 9.225404E-03 # Covariance matrix: 1.4618E-12 -3.6393E-13 -2.4601E-14 4.6116E-14 -2.3216E-13 -1.5655E-12 -3.6393E-13 3.8820E-13 4.4459E-14 -8.6681E-14 5.4176E-13 2.9633E-12 -2.4601E-14 4.4459E-14 1.3593E-12 -1.7811E-13 5.0017E-14 3.5348E-13 4.6116E-14 -8.6681E-14 -1.7811E-13 4.3797E-14 -1.3948E-13 -7.0861E-13 -2.3216E-13 5.4176E-13 5.0017E-14 -1.3948E-13 2.1447E-12 5.0181E-12 -1.5655E-12 2.9633E-12 3.5348E-13 -7.0861E-13 5.0181E-12 2.4341E-11 # lat0 lon0 xBary yBary zBary JD0 14.771747 -135.638033 -0.271089 0.248895 -0.943521 2456798.569546 # Heliocentric elements and errors Epoch: 2456798.5000 = 2014/05/21 Mean Anomaly: 36.32572 +/- 0.024 Argument of Peri: 32.17762 +/- 0.018 Long of Asc Node: 91.40906 +/- 0.001 Inclination: 19.55347 +/- 0.000 Eccentricity: 0.54992929 +/- 0.0002 Semi-Major Axis: 69.48647661 +/- 0.0278 Time of Perihelion: 2435450.3350 +/- 19.0 Perihelion: 31.27382767 +/- 0.0208 Aphelion: 107.69912555 +/- 0.0461 Period (y) 579.2401 +/- 0.35 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -36.66459688 +/- 0.0028 Ecliptic Y -36.23348595 +/- 0.0027 Ecliptic Z 13.33464469 +/- 0.0010 Ecliptic XDOT 0.00052392 +/- 0.0000 Ecliptic YDOT -0.00256035 +/- 0.0000 Ecliptic ZDOT -0.00016366 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 53.24404106 +/- 0.0027 Geocenter to KBO 52.29928933 +/- 0.0040 # Hcoef: 6.41
The following table shows the complete astrometric record for 22HQ19. 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 (22HQ19) followed by the observatory code and reference code for the source of the astrometry.
2014 05 21.068768 15 04 55.84 -02 00 20.7 23.3r 22HQ19 W84 C~79No 2021 05 02.340366 15 26 47.23 -05 00 36.6 23.2i 22HQ19 W84 C~79No 2021 05 02.357428 15 26 47.18 -05 00 36.7 22HQ19 W84 C~79No 2021 05 31.216267 15 25 03.64 -04 55 23.9 22.9i 22HQ19 W84 C~79No 2022 04 25.21438 15 29 58.063 -05 25 38.53 24.2r 22HQ19 807 C~6Eqt 2022 04 26.21377 15 29 54.697 -05 25 23.23 24.3r 22HQ19 807 C~6Eqt 2022 04 29.34748 15 29 43.951 -05 24 36.40 24.2r 22HQ19 304 C~6Eqt 2022 04 30.37170 15 29 40.387 -05 24 21.48 23.8r 22HQ19 304 C~6Eqt 2023 02 18.37907 15 34 38.878 -06 05 13.50 24.2r 22HQ19 304 C~6Eqt 2023 02 19.38216 15 34 39.104 -06 05 02.09 24.4r 22HQ19 304 C~6Eqt 2023 05 17.331530 15 31 23.686 -05 43 35.65 23.7G 22HQ19 G37 C~6rE4 2023 05 17.384870 15 31 23.454 -05 43 35.31 22HQ19 G37 C~6rE4
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 0.02
2 6.9494 0.00 -0.03 0.00 0.18
3 6.9495 0.00 0.13 0.00 -0.16
4 7.0285 0.00 -0.10 0.00 -0.04
5 7.9292 0.00 0.06 0.00 -0.05
6 7.9320 0.00 0.17 0.00 -0.00
7 7.9405 0.00 -0.04 0.00 -0.00
8 7.9433 0.00 -0.24 0.00 -0.04
9 8.7483 0.00 -0.07 0.00 -0.07
10 8.7510 0.00 -0.03 0.00 -0.06
11 8.9891 0.00 0.37 0.00 0.22
12 8.9892 0.00 -0.19 0.00 -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.
22HQ19 quality flag:3 Type: 7:2EEEEE 7:2EEEEE 7:2EEEEE axisobj 68.582 68.583 68.581 ecceobj 0.546 0.546 0.546 incobj 19.545 19.545 19.545 qmin 30.647 30.626 30.655 qmax 110.482 110.538 110.567 amean 69.408 69.408 69.408 amin 68.312 68.317 68.329 amax 70.911 71.005 70.966 emean 0.546 0.546 0.546 emin 0.534 0.534 0.535 emax 0.559 0.559 0.559 imean 18.318 18.310 18.330 imin 17.654 17.645 17.675 imax 18.795 18.799 18.787 excite_mean 0.630 0.630 0.630 fracstop 1.000 1.000 1.000 cjmean 2.850 2.850 2.850 libcent 0 180.0 178.5 179.4 libamp 0 90.6 91.4 87.0 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 100.7 101.4 99.1 kozaiamp 74.5 75.3 72.3