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 Sat Feb 22 02:11:11 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 20 observations of 20 # Arc: 10.00y # First observation: 2014/12/30 # Last observation: 2024/12/31 # Chi-squared of fit: 7.36 DOF: 34 RMS: 0.11 # Min/Max residuals: -0.28 0.25 # Exact a, adot, b, bdot, g, gdot: 1.567833E-05 3.145646E-02 -4.628451E-06 -6.568343E-03 3.010552E-02 -2.473056E-03 # Covariance matrix: 3.7066E-13 -1.2637E-13 -3.4521E-14 1.9788E-14 1.4938E-14 -2.6617E-13 -1.2637E-13 6.6483E-14 2.0851E-14 -1.2440E-14 3.8450E-14 1.6738E-13 -3.4521E-14 2.0851E-14 2.1008E-13 -3.6197E-14 8.8076E-15 5.9139E-14 1.9788E-14 -1.2440E-14 -3.6197E-14 1.0282E-14 -9.1275E-15 -3.5429E-14 1.4938E-14 3.8450E-14 8.8076E-15 -9.1275E-15 3.9254E-13 1.2311E-13 -2.6617E-13 1.6738E-13 5.9139E-14 -3.5429E-14 1.2311E-13 4.7669E-13 # lat0 lon0 xBary yBary zBary JD0 -9.657920 139.760788 0.650535 -0.123283 -0.725368 2457021.938845 # Heliocentric elements and errors Epoch: 2457022.5000 = 2014/12/31 Mean Anomaly: 269.56556 +/- 0.046 Argument of Peri: 320.20497 +/- 0.035 Long of Asc Node: 280.86289 +/- 0.000 Inclination: 15.19309 +/- 0.000 Eccentricity: 0.09657668 +/- 0.0000 Semi-Major Axis: 33.61493458 +/- 0.0027 Time of Perihelion: 2474904.9974 +/- 11.1 Perihelion: 30.36851571 +/- 0.0025 Aphelion: 36.86135344 +/- 0.0030 Period (y) 194.8977 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -25.14115098 +/- 0.0005 Ecliptic Y 22.12541890 +/- 0.0004 Ecliptic Z -5.57274926 +/- 0.0001 Ecliptic XDOT -0.00160620 +/- 0.0000 Ecliptic YDOT -0.00239692 +/- 0.0000 Ecliptic ZDOT -0.00055104 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 33.95100631 +/- 0.0005 Geocenter to KBO 33.21657107 +/- 0.0007 # Hcoef: 8.45
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.
2014 12 30.438067 09 16 32.96 +05 42 15.1 19AQ142 695 C~8eYm 2014 12 30.445324 09 16 32.91 +05 42 15.2 19AQ142 695 C~8eYm 2014 12 30.463703 09 16 32.82 +05 42 15.0 19AQ142 695 C~8eYm 2016 02 03.469552 09 19 56.82 +04 55 13.3 19AQ142 T09 C~8eYm 2016 02 03.491898 09 19 56.69 +04 55 14.0 19AQ142 T09 C~8eYm 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 2024 12 31.427570 10 22 10.850 -03 44 51.76 23.4G 19AQ142 G37 C~8eYm 2024 12 31.480270 10 22 10.689 -03 44 52.10 19AQ142 G37 C~8eYm 2024 12 31.532250 10 22 10.522 -03 44 52.69 19AQ142 G37 C~8eYm
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 0.24 0.00 0.18
2 0.0000 0.00 -0.02 0.00 0.25
3 0.0001 0.00 -0.13 0.00 -0.04
4 1.0952 0.00 -0.01 0.00 -0.19
5 1.0953 0.00 0.05 0.00 0.02
6 3.8772 0.00 0.01 0.00 0.03
7 3.8772 0.00 0.12 0.00 -0.09
8 3.8772 0.00 -0.07 0.00 0.03
9 3.8773 0.00 -0.02 0.00 -0.04
10 3.8773 0.00 -0.14 0.00 -0.28
11 4.0195 0.00 0.06 0.00 0.05
12 4.0196 0.00 -0.00 0.00 -0.06
13 4.0196 0.00 -0.03 0.00 -0.06
14 4.0197 0.00 -0.07 0.00 0.08
15 4.1858 0.00 -0.06 0.00 0.00
16 4.1859 0.00 0.14 0.00 -0.06
17 4.1859 0.00 -0.15 0.00 0.07
18 10.0041 0.00 0.04 0.00 0.06
19 10.0042 0.00 0.07 0.00 0.14
20 10.0044 0.00 -0.02 0.00 -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.
19AQ142 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 33.485 33.485 33.485 ecceobj 0.094 0.094 0.094 incobj 15.195 15.195 15.195 qmin 27.283 28.069 28.088 qmax 39.675 38.994 38.956 amean 33.366 33.370 33.364 amin 32.286 33.009 32.141 amax 33.748 33.738 33.755 emean 0.133 0.123 0.120 emin 0.067 0.081 0.080 emax 0.181 0.157 0.157 imean 16.002 16.714 16.805 imin 14.099 15.243 14.577 imax 18.032 17.508 17.768 excite_mean 0.307 0.313 0.314 fracstop 0.704 0.303 0.296 cjmean 2.909 2.906 2.906 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 231.3 254.3 251.9 kozaiamp 179.9 179.9 80.0