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: 19AG142 # Created Tue Apr 1 01:11:10 2025 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 83.97d # First observation: 2019/01/11 # Last observation: 2019/04/05 Preliminary a, adot, b, bdot, g, gdot: -0.000006 0.022830 -0.000007 -0.002773 0.025581 0.000000 # Chi-squared of fit: 9.56 DOF: 28 RMS: 0.13 # Min/Max residuals: -0.24 0.33 # Exact a, adot, b, bdot, g, gdot: 1.702661E-05 2.881583E-02 -2.007314E-06 -2.555168E-03 2.643946E-02 -3.963803E-03 # Covariance matrix: 3.7241E-13 1.1023E-11 1.2850E-14 3.0761E-13 2.7555E-12 1.0850E-10 1.1023E-11 2.5507E-08 2.3344E-11 7.3772E-10 4.7983E-09 6.1975E-08 1.2850E-14 2.3344E-11 3.6716E-13 -9.7363E-13 4.4159E-12 6.1509E-11 3.0761E-13 7.3772E-10 -9.7363E-13 3.1903E-11 1.3776E-10 1.5687E-09 2.7555E-12 4.7983E-09 4.4159E-12 1.3776E-10 9.0974E-10 1.3078E-08 1.0850E-10 6.1975E-08 6.1509E-11 1.5687E-09 1.3078E-08 4.4659E-07 # lat0 lon0 xBary yBary zBary JD0 -6.612582 166.179971 0.816859 -0.064471 -0.556907 2458495.042281 # Heliocentric elements and errors Epoch: 2458490.5000 = 2019/01/07 Mean Anomaly: 329.00447 +/- 2.686 Argument of Peri: 281.38298 +/- 5.075 Long of Asc Node: 293.85625 +/- 0.204 Inclination: 8.34763 +/- 0.024 Eccentricity: 0.24369425 +/- 0.0172 Semi-Major Axis: 47.20411722 +/- 0.4300 Time of Perihelion: 2468689.6701 +/- 872.6 Perihelion: 35.70074516 +/- 0.8736 Aphelion: 58.70748928 +/- 0.9713 Period (y) 324.3232 +/- 4.43 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -36.83158189 +/- 0.0416 Ecliptic Y 9.89366336 +/- 0.0102 Ecliptic Z -4.35554145 +/- 0.0050 Ecliptic XDOT -0.00027935 +/- 0.0001 Ecliptic YDOT -0.00300411 +/- 0.0000 Ecliptic ZDOT -0.00021577 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.38516302 +/- 0.0400 Geocenter to KBO 37.82225664 +/- 0.0431 # Hcoef: 8.48
The following table shows the complete astrometric record for 19AG142. 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 (19AG142) followed by the observatory code and reference code for the source of the astrometry.
2019 01 11.54148 10 58 52.94 -00 38 44.0 23.6z 19AG142 T09 C~870S 2019 01 11.57352 10 58 52.84 -00 38 44.0 23.9z 19AG142 T09 C~870S 2019 01 11.61693 10 58 52.73 -00 38 43.6 24.7z 19AG142 T09 C~870S 2019 01 11.65742 10 58 52.63 -00 38 43.6 24.5z 19AG142 T09 C~870S 2019 03 15.34612 10 54 25.28 -00 17 16.4 23.0y 19AG142 T09 C~870S 2019 03 15.39221 10 54 25.05 -00 17 14.9 23.6y 19AG142 T09 C~870S 2019 03 15.42212 10 54 24.92 -00 17 14.2 23.5y 19AG142 T09 C~870S 2019 03 15.47604 10 54 24.63 -00 17 12.4 23.8y 19AG142 T09 C~870S 2019 03 15.51620 10 54 24.46 -00 17 11.2 24.2y 19AG142 T09 C~870S 2019 04 04.38985 10 52 55.75 -00 07 15.6 25.0g 19AG142 T09 C~870S 2019 04 04.41725 10 52 55.64 -00 07 14.8 24.8g 19AG142 T09 C~870S 2019 04 04.42780 10 52 55.58 -00 07 14.2 24.9g 19AG142 T09 C~870S 2019 04 05.38960 10 52 51.74 -00 06 46.4 24.5r 19AG142 T09 C~870S 2019 04 05.43532 10 52 51.55 -00 06 45.2 24.7r 19AG142 T09 C~870S 2019 04 05.46890 10 52 51.44 -00 06 43.8 24.5r 19AG142 T09 C~870S 2019 04 05.50116 10 52 51.29 -00 06 43.0 24.7r 19AG142 T09 C~870S 2019 04 05.51163 10 52 51.25 -00 06 42.7 24.6r 19AG142 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 0.04 0.00 0.10
2 0.0001 -1.38 -0.09 -0.58 -0.13
3 0.0002 -3.06 -0.07 -0.85 0.08
4 0.0003 -4.44 0.12 -1.43 -0.05
5 0.1719 -4201.07 0.00 -363.62 -0.04
6 0.1721 -4204.83 -0.11 -363.57 0.04
7 0.1722 -4206.90 0.20 -363.68 -0.05
8 0.1723 -4211.61 -0.24 -363.70 -0.04
9 0.1724 -4214.42 0.12 -363.58 0.10
10 0.2268 -5672.70 0.22 -328.48 -0.14
11 0.2269 -5674.53 0.25 -328.38 -0.13
12 0.2269 -5675.60 -0.09 -328.17 0.05
13 0.2296 -5739.51 -0.08 -324.79 -0.07
14 0.2297 -5742.61 -0.10 -324.79 -0.22
15 0.2298 -5744.67 0.09 -324.13 0.33
16 0.2299 -5747.06 -0.14 -324.26 0.09
17 0.2299 -5747.73 -0.11 -324.22 0.10
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.
19AG142 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 46.981 48.421 45.675 ecceobj 0.237 0.247 0.225 incobj 8.329 8.254 8.403 qmin 34.939 35.830 33.738 qmax 60.156 61.872 59.226 amean 47.143 48.575 45.806 amin 46.698 48.049 45.287 amax 47.788 49.136 46.800 emean 0.236 0.245 0.229 emin 0.216 0.229 0.211 emax 0.260 0.260 0.269 imean 10.552 10.253 10.032 imin 9.415 9.514 8.870 imax 11.776 10.914 10.987 excite_mean 0.299 0.303 0.288 fracstop 1.000 1.000 1.000 cjmean 3.029 3.043 3.022 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 178.6 177.6 178.0 kozaiamp 179.9 180.0 180.0