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: 19QV110 # Created Tue Apr 1 01:11:15 2025 # 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: 0.000037 0.029204 0.000001 -0.000691 0.027901 0.000000 # Chi-squared of fit: 3.32 DOF: 14 RMS: 0.10 # Min/Max residuals: -0.18 0.15 # Exact a, adot, b, bdot, g, gdot: 1.645321E-05 2.911503E-02 3.401641E-07 -6.886971E-04 2.771435E-02 -9.721605E-04 # Covariance matrix: 6.3541E-13 5.5557E-13 1.8394E-15 -1.8345E-14 1.2879E-12 1.2544E-11 5.5557E-13 5.0176E-12 1.5159E-14 -1.2807E-13 5.0800E-12 8.8300E-11 1.8394E-15 1.5159E-14 3.5038E-13 -1.9041E-13 1.4438E-14 2.7961E-13 -1.8345E-14 -1.2807E-13 -1.9041E-13 1.8060E-13 -1.3031E-13 -2.3450E-12 1.2879E-12 5.0800E-12 1.4438E-14 -1.3031E-13 6.8322E-12 8.9535E-11 1.2544E-11 8.8300E-11 2.7961E-13 -2.3450E-12 8.9535E-11 1.6174E-09 # lat0 lon0 xBary yBary zBary JD0 -1.715205 -8.895544 0.267587 -0.028974 -0.967753 2458724.712719 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 317.87700 +/- 0.854 Argument of Peri: 277.23827 +/- 0.999 Long of Asc Node: 119.94952 +/- 0.017 Inclination: 2.15690 +/- 0.001 Eccentricity: 0.05422075 +/- 0.0011 Semi-Major Axis: 38.55172127 +/- 0.0128 Time of Perihelion: 2468950.6232 +/- 207.4 Perihelion: 36.46141786 +/- 0.0439 Aphelion: 40.64202468 +/- 0.0443 Period (y) 239.3723 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.55041537 +/- 0.0034 Ecliptic Y -5.99814507 +/- 0.0005 Ecliptic Z -1.07998706 +/- 0.0001 Ecliptic XDOT 0.00035637 +/- 0.0000 Ecliptic YDOT 0.00285736 +/- 0.0000 Ecliptic ZDOT -0.00006536 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.05505337 +/- 0.0033 Geocenter to KBO 36.08239061 +/- 0.0034 # Hcoef: 9.70
The following table shows the complete astrometric record for 19QV110. 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 (19QV110) followed by the observatory code and reference code for the source of the astrometry.
2019 08 29.211918 23 30 01.462 -05 06 10.24 25.4r 19QV110 W84 C~7XLi 2019 08 29.387113 23 30 00.605 -05 06 15.53 25.4r 19QV110 W84 C~7XLi 2019 09 27.014583 23 27 39.538 -05 21 32.94 25.2r 19QV110 W84 C~7XLi 2019 09 27.176040 23 27 38.731 -05 21 37.62 25.2r 19QV110 W84 C~7XLi 2020 10 16.001792 23 32 23.084 -04 53 31.86 25.3r 19QV110 W84 C~7XLi 2020 10 16.175804 23 32 22.329 -04 53 36.42 25.3r 19QV110 W84 C~7XLi 2021 09 09.073508 23 41 34.778 -03 56 54.46 25.1r 19QV110 W84 C~7XLi 2021 09 09.192572 23 41 34.166 -03 56 58.51 25.1r 19QV110 W84 C~7XLi 2021 10 07.004805 23 39 17.674 -04 11 40.24 25.4r 19QV110 W84 C~7XLi 2021 10 07.169933 23 39 16.904 -04 11 45.09 25.4r 19QV110 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 0.03 0.00 -0.15
2 0.0005 -13.85 -0.03 0.19 0.15
3 0.0789 -2312.15 0.01 -12.47 -0.18
4 0.0793 -2325.07 -0.01 -12.02 0.15
5 1.1329 2243.81 0.15 -139.15 0.04
6 1.1334 2231.65 -0.16 -138.87 0.01
7 2.0311 11176.09 0.14 -295.24 0.03
8 2.0314 11166.05 -0.15 -295.31 -0.02
9 2.1076 8936.32 -0.07 -291.58 0.02
10 2.1080 8923.80 0.07 -291.45 -0.06
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.
19QV110 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 38.591 38.614 38.568 ecceobj 0.058 0.059 0.057 incobj 2.157 2.157 2.157 qmin 35.870 35.879 35.849 qmax 41.352 41.429 41.359 amean 38.516 38.539 38.492 amin 38.233 38.253 38.193 amax 38.824 38.846 38.799 emean 0.044 0.045 0.044 emin 0.019 0.019 0.020 emax 0.066 0.067 0.067 imean 1.791 1.800 1.775 imin 0.176 0.179 0.202 imax 2.742 2.761 2.746 excite_mean 0.056 0.056 0.056 fracstop 1.000 1.000 1.000 cjmean 3.041 3.041 3.040 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 179.7 179.5 180.2 kozaiamp 180.0 180.0 180.0