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: 19AT142 # Created Sun Dec 22 02:11:03 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 112.79d # First observation: 2018/11/15 # Last observation: 2019/03/08 Preliminary a, adot, b, bdot, g, gdot: 0.000004 0.032861 0.000014 -0.008399 0.030454 0.000000 # Chi-squared of fit: 3.36 DOF: 18 RMS: 0.09 # Min/Max residuals: -0.16 0.16 # Exact a, adot, b, bdot, g, gdot: 1.765623E-05 3.144595E-02 -4.764544E-06 -8.197295E-03 2.944689E-02 -4.875371E-03 # Covariance matrix: 3.6436E-13 -3.2000E-12 1.7001E-15 -4.3864E-13 -1.5032E-13 4.3458E-11 -3.2000E-12 3.3535E-10 4.4207E-12 6.9121E-12 1.3464E-10 8.8999E-09 1.7001E-15 4.4207E-12 3.6662E-13 -1.2438E-12 2.1622E-12 1.6955E-10 -4.3864E-13 6.9121E-12 -1.2438E-12 1.0243E-11 -1.8143E-12 -4.7705E-10 -1.5032E-13 1.3464E-10 2.1622E-12 -1.8143E-12 6.3476E-11 4.8243E-09 4.3458E-11 8.8999E-09 1.6955E-10 -4.7705E-10 4.8243E-09 4.0868E-07 # lat0 lon0 xBary yBary zBary JD0 -10.472891 145.858791 0.993643 0.008676 0.046353 2458438.055421 # Heliocentric elements and errors Epoch: 2458430.5000 = 2018/11/08 Mean Anomaly: 301.50285 +/- 0.636 Argument of Peri: 294.82122 +/- 1.476 Long of Asc Node: 290.04223 +/- 0.031 Inclination: 18.25843 +/- 0.013 Eccentricity: 0.19121974 +/- 0.0198 Semi-Major Axis: 36.45908932 +/- 0.2536 Time of Perihelion: 2471496.4016 +/- 40.1 Perihelion: 29.48739161 +/- 0.7515 Aphelion: 43.43078703 +/- 0.7835 Period (y) 220.1491 +/- 2.30 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.04175628 +/- 0.0075 Ecliptic Y 19.52978939 +/- 0.0051 Ecliptic Z -6.17301627 +/- 0.0017 Ecliptic XDOT -0.00114964 +/- 0.0000 Ecliptic YDOT -0.00275007 +/- 0.0000 Ecliptic ZDOT -0.00066725 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.92308044 +/- 0.0066 Geocenter to KBO 33.95944423 +/- 0.0092 # Hcoef: 8.25
The following table shows the complete astrometric record for 19AT142. 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 (19AT142) followed by the observatory code and reference code for the source of the astrometry.
2018 11 15.55462 09 38 21.06 +03 01 26.8 23.4z 19AT142 T09 C~870S 2018 11 15.57918 09 38 21.10 +03 01 26.0 23.2z 19AT142 T09 C~870S 2018 11 15.59104 09 38 21.10 +03 01 25.5 23.6z 19AT142 T09 C~870S 2018 11 15.63220 09 38 21.12 +03 01 24.3 23.1z 19AT142 T09 C~870S 2019 01 06.47354 09 36 37.10 +02 50 08.2 24.5g 19AT142 T09 C~870S 2019 01 06.56358 09 36 36.68 +02 50 08.8 24.1g 19AT142 T09 C~870S 2019 01 06.59760 09 36 36.53 +02 50 08.8 23.9g 19AT142 T09 C~870S 2019 01 06.61913 09 36 36.43 +02 50 09.0 24.3g 19AT142 T09 C~870S 2019 03 08.29390 09 31 02.77 +03 10 25.9 23.7r 19AT142 T09 C~870S 2019 03 08.31497 09 31 02.64 +03 10 26.5 23.2r 19AT142 T09 C~870S 2019 03 08.33611 09 31 02.54 +03 10 27.0 23.5r 19AT142 T09 C~870S 2019 03 08.34464 09 31 02.50 +03 10 27.5 23.5r 19AT142 T09 C~870S
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 -0.16 0.00 0.07
2 0.0001 0.83 0.16 -0.56 0.11
3 0.0001 0.99 0.08 -1.03 -0.07
4 0.0002 1.67 -0.08 -2.06 -0.11
5 0.1421 -1246.82 0.03 -1153.88 -0.08
6 0.1424 -1252.96 -0.10 -1155.38 0.07
7 0.1425 -1255.08 0.06 -1156.12 -0.04
8 0.1425 -1256.57 0.01 -1156.43 0.05
9 0.3087 -6379.02 0.11 -1650.43 0.05
10 0.3087 -6381.06 -0.16 -1650.50 -0.06
11 0.3088 -6382.64 0.03 -1650.52 -0.12
12 0.3088 -6383.37 0.02 -1650.24 0.14
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.
19AT142 quality flag:1 Type: 4:3E CENTAURR CENTAURS Type: 8:6II axisobj 36.478 36.814 36.327 ecceobj 0.186 0.230 0.153 incobj 18.209 18.245 18.193 qmin 27.965 27.749 29.845 qmax 45.417 45.620 43.665 amean 36.475 36.333 36.478 amin 36.136 35.545 35.983 amax 36.893 36.998 37.003 emean 0.197 0.226 0.129 emin 0.160 0.213 0.038 emax 0.233 0.235 0.181 imean 19.704 19.947 20.658 imin 18.401 19.817 18.601 imax 20.983 20.175 22.897 excite_mean 0.391 0.409 0.377 fracstop 1.000 0.003 1.000 cjmean 2.856 2.839 2.867 libcent 0 178.8 -180.0 -180.0 libamp 0 64.7 -180.0 -180.0 libcent 1 180.0 -180.0 -180.0 libamp 1 154.0 -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 269.8 302.4 129.5 kozaiamp 26.1 3.6 180.0