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: 19AQ142 # Created Sun Dec 22 02:11:03 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 112.76d # First observation: 2018/11/15 # Last observation: 2019/03/08 Preliminary a, adot, b, bdot, g, gdot: 0.000003 0.033043 0.000011 -0.005909 0.030785 0.000000 # Chi-squared of fit: 2.85 DOF: 18 RMS: 0.09 # Min/Max residuals: -0.24 0.17 # Exact a, adot, b, bdot, g, gdot: 1.683134E-05 3.164099E-02 -3.583014E-06 -5.801026E-03 2.975845E-02 -2.379788E-03 # Covariance matrix: 2.9146E-13 -2.4655E-12 1.3410E-15 -3.3649E-13 -9.4694E-14 3.6161E-11 -2.4655E-12 2.9998E-10 3.3620E-12 1.7942E-11 1.2909E-10 8.9253E-09 1.3410E-15 3.3620E-12 2.9325E-13 -9.1130E-13 1.7489E-12 1.4125E-10 -3.3649E-13 1.7942E-11 -9.1130E-13 1.0552E-11 4.3643E-12 2.6336E-11 -9.4694E-14 1.2909E-10 1.7489E-12 4.3643E-12 6.5041E-11 5.1143E-09 3.6161E-11 8.9253E-09 1.4125E-10 2.6336E-11 5.1143E-09 4.4400E-07 # lat0 lon0 xBary yBary zBary JD0 -10.820973 147.401332 0.992026 0.013934 0.072337 2458438.068081 # Heliocentric elements and errors Epoch: 2458430.5000 = 2018/11/08 Mean Anomaly: 274.57426 +/- 1.312 Argument of Peri: 323.10480 +/- 0.835 Long of Asc Node: 281.03653 +/- 0.038 Inclination: 15.24326 +/- 0.010 Eccentricity: 0.10508074 +/- 0.0204 Semi-Major Axis: 33.45556558 +/- 0.1129 Time of Perihelion: 2475202.5926 +/- 243.2 Perihelion: 29.94003010 +/- 0.6910 Aphelion: 36.97110105 +/- 0.6949 Period (y) 193.5133 +/- 0.98 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.21008741 +/- 0.0075 Ecliptic Y 18.57046666 +/- 0.0048 Ecliptic Z -6.30898241 +/- 0.0017 Ecliptic XDOT -0.00129507 +/- 0.0001 Ecliptic YDOT -0.00262462 +/- 0.0000 Ecliptic ZDOT -0.00048331 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.54182982 +/- 0.0067 Geocenter to KBO 33.60390173 +/- 0.0091 # Hcoef: 8.46
The following table shows the complete astrometric record for 19AQ142. 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 (19AQ142) followed by the observatory code and reference code for the source of the astrometry.
2018 11 15.56728 09 43 36.74 +02 11 30.2 23.7z 19AQ142 T09 C~870S 2018 11 15.57003 09 43 36.75 +02 11 30.0 23.6z 19AQ142 T09 C~870S 2018 11 15.59379 09 43 36.76 +02 11 29.4 23.4z 19AQ142 T09 C~870S 2018 11 15.61124 09 43 36.78 +02 11 28.8 23.8z 19AQ142 T09 C~870S 2018 11 15.61997 09 43 36.78 +02 11 28.3 23.8z 19AQ142 T09 C~870S 2019 01 06.56568 09 42 00.10 +02 00 02.2 24.0g 19AQ142 T09 C~870S 2019 01 06.58908 09 41 59.99 +02 00 02.2 24.1g 19AQ142 T09 C~870S 2019 01 06.60853 09 41 59.90 +02 00 02.3 24.0g 19AQ142 T09 C~870S 2019 01 06.62123 09 41 59.84 +02 00 02.5 24.3g 19AQ142 T09 C~870S 2019 03 08.28552 09 36 26.06 +02 21 41.8 24.0r 19AQ142 T09 C~870S 2019 03 08.32553 09 36 25.86 +02 21 43.0 23.7r 19AQ142 T09 C~870S 2019 03 08.32762 09 36 25.83 +02 21 43.2 23.6r 19AQ142 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 -0.00 0.00 0.10
2 0.0000 0.21 0.14 -0.14 0.03
3 0.0001 0.55 -0.08 -0.65 0.08
4 0.0001 1.03 -0.01 -1.12 0.03
5 0.0001 1.20 -0.05 -1.59 -0.24
6 0.1424 -1134.18 0.05 -1133.84 0.07
7 0.1424 -1135.74 0.03 -1134.40 -0.06
8 0.1425 -1137.04 0.00 -1134.75 -0.06
9 0.1425 -1137.96 -0.08 -1134.87 0.05
10 0.3086 -6289.44 -0.03 -1585.25 -0.01
11 0.3087 -6292.67 0.17 -1585.12 -0.01
12 0.3087 -6293.16 -0.14 -1585.08 0.02
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.
19AQ142 quality flag:2 Type: CENTAURR CENTAURR CENTAURS axisobj 33.507 33.673 33.450 ecceobj 0.099 0.053 0.115 incobj 15.196 15.167 15.220 qmin 25.080 29.393 28.493 qmax 42.182 41.612 38.553 amean 33.307 34.530 33.370 amin 31.182 32.856 33.015 amax 34.052 36.028 33.759 emean 0.177 0.080 0.113 emin 0.093 0.036 0.074 emax 0.249 0.155 0.146 imean 14.577 16.581 16.879 imin 11.668 15.042 15.169 imax 17.141 17.999 18.595 excite_mean 0.312 0.297 0.312 fracstop 0.172 0.578 1.000 cjmean 2.906 2.919 2.905 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 251.6 179.1 266.3 kozaiamp 179.9 180.0 62.8