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: 19QP110 # Created Fri Nov 22 02:11:00 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.11y # First observation: 2019/08/29 # Last observation: 2021/10/07 Preliminary a, adot, b, bdot, g, gdot: 0.000036 0.024602 0.000012 -0.009436 0.026172 0.000000 # Chi-squared of fit: 2.88 DOF: 14 RMS: 0.09 # Min/Max residuals: -0.17 0.19 # Exact a, adot, b, bdot, g, gdot: 1.428149E-05 2.448344E-02 -5.561877E-06 -9.389642E-03 2.597693E-02 -2.153812E-03 # Covariance matrix: 6.1218E-13 4.2959E-13 3.1633E-14 -2.5127E-13 1.1615E-12 1.2732E-11 4.2959E-13 3.7615E-12 1.9874E-13 -1.5635E-12 4.0636E-12 7.9288E-11 3.1633E-14 1.9874E-13 3.6147E-13 -2.7753E-13 2.1718E-13 4.4146E-12 -2.5127E-13 -1.5635E-12 -2.7753E-13 8.6225E-13 -1.7157E-12 -3.4714E-11 1.1615E-12 4.0636E-12 2.1718E-13 -1.7157E-12 5.9677E-12 8.6978E-11 1.2732E-11 7.9288E-11 4.4146E-12 -3.4714E-11 8.6978E-11 1.7605E-09 # lat0 lon0 xBary yBary zBary JD0 -1.136946 -8.968512 0.266354 -0.019213 -0.968336 2458724.712719 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 292.08966 +/- 0.096 Argument of Peri: 260.85008 +/- 0.206 Long of Asc Node: 167.74630 +/- 0.000 Inclination: 21.01480 +/- 0.001 Eccentricity: 0.08942797 +/- 0.0016 Semi-Major Axis: 40.54166411 +/- 0.0192 Time of Perihelion: 2476506.7407 +/- 21.8 Perihelion: 36.91610527 +/- 0.0679 Aphelion: 44.16722294 +/- 0.0689 Period (y) 258.1431 +/- 0.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 38.93555316 +/- 0.0036 Ecliptic Y -6.42111476 +/- 0.0006 Ecliptic Z -0.76405077 +/- 0.0001 Ecliptic XDOT 0.00016715 +/- 0.0000 Ecliptic YDOT 0.00258791 +/- 0.0000 Ecliptic ZDOT -0.00098515 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.46887113 +/- 0.0035 Geocenter to KBO 38.49569235 +/- 0.0036 # Hcoef: 9.53
The following table shows the complete astrometric record for 19QP110. 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 (19QP110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 29.211918 23 28 50.388 -04 36 00.79 25.5r 19QP110 W84 C~7XLi 2019 08 29.387113 23 28 49.582 -04 36 06.92 25.5r 19QP110 W84 C~7XLi 2019 09 27.014583 23 26 38.335 -04 52 53.29 25.2r 19QP110 W84 C~7XLi 2019 09 27.176040 23 26 37.624 -04 52 58.93 25.2r 19QP110 W84 C~7XLi 2020 10 16.001792 23 31 17.140 -04 59 50.70 25.4r 19QP110 W84 C~7XLi 2020 10 16.175804 23 31 16.468 -04 59 55.72 25.4r 19QP110 W84 C~7XLi 2021 09 05.096099 23 40 24.984 -04 32 47.01 25.3r 19QP110 W84 C~7XLi 2021 09 05.195929 23 40 24.523 -04 32 50.47 25.3r 19QP110 W84 C~7XLi 2021 10 07.004805 23 37 59.015 -04 51 22.37 25.5r 19QP110 W84 C~7XLi 2021 10 07.169933 23 37 58.284 -04 51 27.80 25.5r 19QP110 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 0.13 0.00 -0.03
2 0.0005 -13.49 -0.15 -0.88 0.01
3 0.0789 -2213.32 -0.17 -153.27 0.17
4 0.0793 -2225.31 0.19 -154.27 -0.12
5 1.1329 1451.42 -0.08 -2179.55 0.00
6 1.1334 1440.21 0.07 -2180.20 -0.06
7 2.0202 9621.44 -0.00 -3938.55 -0.06
8 2.0205 9613.72 0.02 -3938.98 0.06
9 2.1076 7171.23 0.04 -4093.69 0.05
10 2.1080 7159.03 -0.06 -4094.33 -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.
19QP110 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.599 40.636 40.563 ecceobj 0.094 0.096 0.091 incobj 20.979 20.979 20.979 qmin 36.065 35.969 36.146 qmax 45.164 45.319 45.041 amean 40.511 40.541 40.481 amin 40.190 40.214 40.158 amax 40.848 40.881 40.814 emean 0.091 0.094 0.088 emin 0.076 0.079 0.075 emax 0.106 0.109 0.104 imean 20.741 20.738 20.749 imin 20.099 20.091 20.109 imax 21.462 21.456 21.468 excite_mean 0.366 0.366 0.365 fracstop 1.000 1.000 1.000 cjmean 2.904 2.904 2.904 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 183.4 182.6 184.8 kozaiamp 180.0 180.0 180.0