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: 19SN235 # Created Sun Dec 22 02:11:09 2024 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.09y # First observation: 2019/08/29 # Last observation: 2021/10/02 Preliminary a, adot, b, bdot, g, gdot: 0.000025 0.018175 0.000006 -0.003889 0.021405 0.000000 # Chi-squared of fit: 1.79 DOF: 14 RMS: 0.07 # Min/Max residuals: -0.23 0.17 # Exact a, adot, b, bdot, g, gdot: 1.330441E-05 1.807512E-02 -2.853901E-06 -3.865457E-03 2.126060E-02 -2.737193E-03 # Covariance matrix: 6.9440E-13 5.7899E-13 2.1459E-14 -1.7539E-13 1.4930E-12 2.1572E-11 5.7899E-13 4.0115E-12 1.1867E-13 -9.4885E-13 4.7364E-12 1.1673E-10 2.1459E-14 1.1867E-13 3.5460E-13 -2.1989E-13 1.3983E-13 3.6353E-12 -1.7539E-13 -9.4885E-13 -2.1989E-13 4.1293E-13 -1.1290E-12 -2.9030E-11 1.4930E-12 4.7364E-12 1.3983E-13 -1.1290E-12 7.4076E-12 1.3888E-10 2.1572E-11 1.1673E-10 3.6353E-12 -2.9030E-11 1.3888E-10 3.5714E-09 # lat0 lon0 xBary yBary zBary JD0 -1.128671 -9.984839 0.249133 -0.019163 -0.972910 2458724.712719 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 256.41316 +/- 0.680 Argument of Peri: 305.59353 +/- 0.567 Long of Asc Node: 164.55491 +/- 0.001 Inclination: 12.12426 +/- 0.001 Eccentricity: 0.15966351 +/- 0.0026 Semi-Major Axis: 45.29760087 +/- 0.0473 Time of Perihelion: 2490762.0353 +/- 204.3 Perihelion: 38.06522694 +/- 0.1224 Aphelion: 52.52997480 +/- 0.1281 Period (y) 304.8744 +/- 0.48 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 47.23198293 +/- 0.0059 Ecliptic Y -8.57483327 +/- 0.0011 Ecliptic Z -0.92662495 +/- 0.0001 Ecliptic XDOT 0.00005531 +/- 0.0000 Ecliptic YDOT 0.00235576 +/- 0.0000 Ecliptic ZDOT -0.00049096 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 48.01298378 +/- 0.0058 Geocenter to KBO 47.03537038 +/- 0.0060 # Hcoef: 7.67
The following table shows the complete astrometric record for 19SN235. 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 (19SN235) followed by the observatory code and reference code for the source of the astrometry.
2019 08 29.211918 23 25 04.642 -04 59 33.67 24.4r 19SN235 W84 C~7XM8 2019 08 29.387113 23 25 03.968 -04 59 38.36 24.4r 19SN235 W84 C~7XM8 2019 09 27.014583 23 23 12.857 -05 12 35.49 24.4r 19SN235 W84 C~7XM8 2019 09 27.176040 23 23 12.227 -05 12 39.72 24.4r 19SN235 W84 C~7XM8 2020 10 19.015429 23 26 04.183 -05 09 26.34 24.4r 19SN235 W84 C~7XM8 2020 10 19.170607 23 26 03.692 -05 09 29.66 24.4r 19SN235 W84 C~7XM8 2021 09 13.055538 23 32 29.821 -04 41 43.32 24.3r 19SN235 W84 C~7XM8 2021 09 13.174687 23 32 29.324 -04 41 46.33 24.3r 19SN235 W84 C~7XM8 2021 10 02.027293 23 31 16.087 -04 50 15.72 24.3r 19SN235 W84 C~7XM8 2021 10 02.165093 23 31 15.556 -04 50 19.26 24.3r 19SN235 W84 C~7XM8
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 -0.00
2 0.0005 -11.10 -0.01 -0.35 0.02
3 0.0789 -1843.05 0.04 -62.72 -0.03
4 0.0793 -1853.37 -0.04 -62.92 0.01
5 1.1411 584.71 0.03 -894.88 0.04
6 1.1416 576.66 -0.04 -895.04 -0.02
7 2.0420 6538.73 0.06 -1642.08 -0.23
8 2.0423 6530.70 -0.10 -1641.90 0.17
9 2.0940 5322.71 0.06 -1676.57 0.01
10 2.0943 5314.01 -0.02 -1676.69 0.05
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.
19SN235 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.416 45.539 45.299 ecceobj 0.163 0.169 0.156 incobj 12.101 12.100 12.101 qmin 36.957 36.719 37.165 qmax 54.031 54.503 53.679 amean 45.306 45.409 45.176 amin 44.917 45.025 44.763 amax 45.758 45.848 45.611 emean 0.167 0.173 0.159 emin 0.151 0.159 0.144 emax 0.183 0.189 0.178 imean 11.824 11.831 11.755 imin 11.233 11.266 11.144 imax 12.481 12.535 12.478 excite_mean 0.264 0.268 0.259 fracstop 1.000 1.000 1.000 cjmean 3.032 3.031 3.034 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 179.4 182.1 178.0 kozaiamp 180.0 180.0 179.9