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: 19SH235 # Created Fri Nov 22 02:11:01 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 2.10y # First observation: 2019/08/28 # Last observation: 2021/10/03 Preliminary a, adot, b, bdot, g, gdot: 0.000030 0.023760 -0.000010 0.012095 0.025472 0.000000 # Chi-squared of fit: 1.43 DOF: 18 RMS: 0.06 # Min/Max residuals: -0.16 0.17 # Exact a, adot, b, bdot, g, gdot: 1.478813E-05 2.369148E-02 7.788085E-06 1.205918E-02 2.535722E-02 -1.130210E-03 # Covariance matrix: 6.1880E-13 4.2440E-13 -3.7441E-14 3.2862E-13 1.1811E-12 1.3135E-11 4.2440E-13 2.3018E-12 -1.5027E-13 1.3177E-12 2.3740E-12 5.2674E-11 -3.7441E-14 -1.5027E-13 2.5558E-13 -2.2770E-13 -1.6166E-13 -3.6820E-12 3.2862E-13 1.3177E-12 -2.2770E-13 9.5729E-13 1.4183E-12 3.2286E-11 1.1811E-12 2.3740E-12 -1.6166E-13 1.4183E-12 4.0108E-12 5.6693E-11 1.3135E-11 5.2674E-11 -3.6820E-12 3.2286E-11 5.6693E-11 1.2906E-09 # lat0 lon0 xBary yBary zBary JD0 -0.813882 -8.616712 0.288703 -0.013664 -0.962144 2458723.711696 # Heliocentric elements and errors Epoch: 2458720.5000 = 2019/08/25 Mean Anomaly: 342.99824 +/- 0.436 Argument of Peri: 20.65204 +/- 0.589 Long of Asc Node: 352.52501 +/- 0.000 Inclination: 26.97190 +/- 0.001 Eccentricity: 0.13577286 +/- 0.0006 Semi-Major Axis: 46.32930681 +/- 0.0166 Time of Perihelion: 2464160.1817 +/- 139.6 Perihelion: 40.03904422 +/- 0.0330 Aphelion: 52.61956940 +/- 0.0352 Period (y) 315.3493 +/- 0.17 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.89839167 +/- 0.0031 Ecliptic Y -6.34456448 +/- 0.0005 Ecliptic Z -0.55986421 +/- 0.0000 Ecliptic XDOT 0.00028935 +/- 0.0000 Ecliptic YDOT 0.00254520 +/- 0.0000 Ecliptic ZDOT 0.00130342 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.40357168 +/- 0.0030 Geocenter to KBO 39.43650297 +/- 0.0031 # Hcoef: 8.83
The following table shows the complete astrometric record for 19SH235. 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 (19SH235) followed by the observatory code and reference code for the source of the astrometry.
2019 08 28.210895 23 29 37.539 -04 09 52.72 24.8r 19SH235 W84 C~7XM7 2019 08 28.388381 23 29 36.706 -04 09 56.62 24.8r 19SH235 W84 C~7XM7 2019 09 27.014583 23 27 14.834 -04 21 27.93 24.8r 19SH235 W84 C~7XM7 2019 09 27.176040 23 27 14.050 -04 21 31.56 24.8r 19SH235 W84 C~7XM7 2019 09 29.013696 23 27 05.415 -04 22 12.73 24.7r 19SH235 W84 C~7XM7 2019 09 29.177510 23 27 04.639 -04 22 16.34 24.7r 19SH235 W84 C~7XM7 2020 10 17.010669 23 29 38.201 -03 18 22.54 24.9r 19SH235 W84 C~7XM7 2020 10 17.174574 23 29 37.536 -03 18 25.55 24.9r 19SH235 W84 C~7XM7 2021 09 04.092679 23 36 53.839 -01 51 38.21 24.8r 19SH235 W84 C~7XM7 2021 09 04.195842 23 36 53.321 -01 51 40.62 24.8r 19SH235 W84 C~7XM7 2021 10 03.011907 23 34 35.276 -02 02 58.81 24.7r 19SH235 W84 C~7XM7 2021 10 03.165173 23 34 34.553 -02 03 02.19 24.7r 19SH235 W84 C~7XM7
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 -0.00 0.00 -0.06
2 0.0005 -12.99 -0.01 1.33 0.05
3 0.0816 -2235.99 0.05 202.03 -0.06
4 0.0820 -2248.20 -0.07 203.31 0.02
5 0.0871 -2383.15 -0.01 216.30 0.01
6 0.0875 -2395.24 0.04 217.55 0.03
7 1.1384 1227.75 -0.01 2836.08 0.02
8 1.1388 1217.41 0.01 2837.24 -0.01
9 2.0202 9289.10 0.17 5041.14 -0.02
10 2.0205 9280.99 -0.16 5042.00 0.07
11 2.0994 7108.04 0.00 5237.10 -0.08
12 2.0998 7096.73 -0.02 5238.28 0.03
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.
19SH235 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.392 46.426 46.359 ecceobj 0.139 0.140 0.138 incobj 26.935 26.935 26.935 qmin 39.061 39.078 39.119 qmax 53.729 53.808 53.718 amean 46.249 46.281 46.218 amin 45.854 45.909 45.850 amax 46.678 46.708 46.661 emean 0.138 0.138 0.137 emin 0.124 0.125 0.124 emax 0.152 0.153 0.151 imean 27.537 27.538 27.535 imin 27.260 27.256 27.247 imax 27.794 27.795 27.794 excite_mean 0.482 0.483 0.482 fracstop 1.000 1.000 1.000 cjmean 2.828 2.828 2.828 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 169.1 169.2 168.7 kozaiamp 179.9 180.0 180.0