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: 19JX147 # Created Tue Jan 21 02:11:21 2025 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 141.78d # First observation: 2019/01/09 # Last observation: 2019/05/31 Preliminary a, adot, b, bdot, g, gdot: -0.000014 0.030522 0.000025 -0.002724 0.025073 0.000000 # Chi-squared of fit: 7.85 DOF: 18 RMS: 0.14 # Min/Max residuals: -0.42 0.28 # Exact a, adot, b, bdot, g, gdot: 1.570271E-05 2.356905E-02 -1.717718E-06 -2.504537E-03 2.374375E-02 -1.079147E-02 # Covariance matrix: 7.3224E-13 -1.4346E-12 2.7329E-15 -6.6012E-14 6.1219E-13 7.1296E-11 -1.4346E-12 1.7156E-09 7.0247E-12 -3.6869E-11 1.4224E-10 -3.1265E-08 2.7329E-15 7.0247E-12 6.7304E-13 -2.0034E-12 5.9137E-13 -1.2760E-10 -6.6012E-14 -3.6869E-11 -2.0034E-12 7.4083E-12 -3.4430E-12 6.2336E-10 6.1219E-13 1.4224E-10 5.9137E-13 -3.4430E-12 1.5630E-11 -2.0843E-09 7.1296E-11 -3.1265E-08 -1.2760E-10 6.2336E-10 -2.0843E-09 6.4276E-07 # lat0 lon0 xBary yBary zBary JD0 -6.324098 161.745883 0.792276 -0.065436 -0.591234 2458493.068798 # Heliocentric elements and errors Epoch: 2458490.5000 = 2019/01/07 Mean Anomaly: 330.02247 +/- 2.478 Argument of Peri: 308.62359 +/- 0.315 Long of Asc Node: 295.77259 +/- 0.046 Inclination: 8.79714 +/- 0.007 Eccentricity: 0.51272174 +/- 0.0365 Semi-Major Axis: 61.37432591 +/- 3.2157 Time of Perihelion: 2473114.6930 +/- 374.1 Perihelion: 29.90637475 +/- 2.7336 Aphelion: 92.84227707 +/- 5.3554 Period (y) 480.8264 +/- 37.79 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -40.06964274 +/- 0.0066 Ecliptic Y 14.04256778 +/- 0.0022 Ecliptic Z -4.63931975 +/- 0.0008 Ecliptic XDOT 0.00036138 +/- 0.0001 Ecliptic YDOT -0.00298021 +/- 0.0000 Ecliptic ZDOT -0.00015017 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.71174624 +/- 0.0062 Geocenter to KBO 42.11635354 +/- 0.0070 # Hcoef: 8.53
The following table shows the complete astrometric record for 19JX147. 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 (19JX147) followed by the observatory code and reference code for the source of the astrometry.
2019 01 09.567997 10 43 02.23 +01 18 18.2 19JX147 T09 C~8ZqA 2019 01 09.608820 10 43 02.12 +01 18 18.4 19JX147 T09 C~8ZqA 2019 04 07.30366 10 37 13.40 +01 49 22.0 25.7g 19JX147 T09 C~8Mhu 2019 04 07.37920 10 37 13.16 +01 49 24.0 25.2g 19JX147 T09 C~8Mhu 2019 05 08.33595 10 36 03.01 +01 59 38.7 24.5i 19JX147 T09 C~8Mhu 2019 05 08.36272 10 36 02.97 +01 59 38.7 24.5i 19JX147 T09 C~8Mhu 2019 05 08.39224 10 36 02.94 +01 59 39.2 24.2i 19JX147 T09 C~8Mhu 2019 05 31.26312 10 36 00.85 +02 02 53.7 24.6r 19JX147 T09 C~8Mhu 2019 05 31.28833 10 36 00.89 +02 02 54.1 25.1r 19JX147 T09 C~8Mhu 2019 05 31.31241 10 36 00.93 +02 02 54.2 25.3r 19JX147 T09 C~8Mhu 2019 05 31.33334 10 36 00.93 +02 02 54.4 24.9r 19JX147 T09 C~8Mhu 2019 05 31.34382 10 36 00.93 +02 02 54.4 24.8r 19JX147 T09 C~8Mhu
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 0.01
2 0.0001 -1.60 0.00 -0.44 -0.04
3 0.2402 -5548.39 -0.09 -249.00 -0.07
4 0.2404 -5552.48 0.11 -248.50 0.17
5 0.3252 -6759.39 -0.03 -75.75 0.23
6 0.3252 -6759.94 -0.02 -75.97 -0.17
7 0.3253 -6760.55 -0.01 -75.68 -0.07
8 0.3879 -6863.01 -0.12 92.75 -0.42
9 0.3880 -6862.61 0.02 93.34 -0.01
10 0.3881 -6862.09 0.28 93.66 0.13
11 0.3881 -6862.16 -0.02 93.85 0.17
12 0.3882 -6862.16 -0.13 93.85 0.09
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.
19JX147 quality flag:1 Type: CENTAURR11:3EEEEEE CENTAURR axisobj 60.708 71.055 54.232 ecceobj 0.506 0.603 0.411 incobj 8.774 8.757 8.791 qmin 29.597 27.551 29.780 qmax 98.378 118.348 93.585 amean 61.774 71.594 53.883 amin 59.318 70.498 43.761 amax 64.571 73.254 62.521 emean 0.506 0.606 0.410 emin 0.478 0.598 0.312 emax 0.527 0.616 0.499 imean 11.886 10.306 8.741 imin 10.328 10.055 2.913 imax 13.388 10.534 12.511 excite_mean 0.547 0.632 0.439 fracstop 0.029 1.000 0.983 cjmean 2.903 2.834 2.964 libcent 0 -180.0 178.2 -180.0 libamp 0 -180.0 96.4 -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 333.3 176.2 171.8 kozaiamp 23.9 180.0 179.9