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: 19GG186 # Created Sun Dec 22 02:11:07 2024 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 83.93d # First observation: 2019/01/11 # Last observation: 2019/04/05 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.020090 -0.000000 0.004152 0.022738 0.000000 # Chi-squared of fit: 5.65 DOF: 22 RMS: 0.11 # Min/Max residuals: -0.25 0.24 # Exact a, adot, b, bdot, g, gdot: 1.482592E-05 2.032226E-02 3.124651E-06 4.132680E-03 2.263114E-02 3.893189E-03 # Covariance matrix: 6.6401E-13 -2.6407E-11 -5.4025E-14 -4.9290E-13 -3.6270E-12 1.2585E-10 -2.6407E-11 8.3055E-09 2.1446E-11 2.3543E-10 1.6604E-09 5.0834E-08 -5.4025E-14 2.1446E-11 4.6970E-13 -1.5860E-12 4.3538E-12 1.4462E-10 -4.9290E-13 2.3543E-10 -1.5860E-12 2.2557E-11 4.8477E-11 1.7407E-09 -3.6270E-12 1.6604E-09 4.3538E-12 4.8477E-11 3.4086E-10 1.2046E-08 1.2585E-10 5.0834E-08 1.4462E-10 1.7407E-09 1.2046E-08 7.3068E-07 # lat0 lon0 xBary yBary zBary JD0 -5.918935 167.502954 0.829112 -0.055842 -0.539443 2458495.090551 # Heliocentric elements and errors Epoch: 2458490.5000 = 2019/01/07 Mean Anomaly: 86.22862 +/- 7.899 Argument of Peri: 227.43879 +/- 5.394 Long of Asc Node: 193.42817 +/- 0.108 Inclination: 12.71741 +/- 0.046 Eccentricity: 0.16474743 +/- 0.0369 Semi-Major Axis: 44.01906989 +/- 0.7751 Time of Perihelion: 2432939.4560 +/- 2241.1 Perihelion: 36.76704143 +/- 1.7489 Aphelion: 51.27109836 +/- 1.8587 Period (y) 292.0583 +/- 7.71 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -43.25938800 +/- 0.0350 Ecliptic Y 10.42933496 +/- 0.0077 Ecliptic Z -4.55650108 +/- 0.0037 Ecliptic XDOT -0.00103180 +/- 0.0001 Ecliptic YDOT -0.00228964 +/- 0.0000 Ecliptic ZDOT 0.00044852 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.73150322 +/- 0.0339 Geocenter to KBO 44.18690820 +/- 0.0360 # Hcoef: 7.77
The following table shows the complete astrometric record for 19GG186. 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 (19GG186) followed by the observatory code and reference code for the source of the astrometry.
2019 01 11.58975 11 04 48.42 -00 30 55.6 23.6z 19GG186 T09 C~8HRL 2019 01 11.61961 11 04 48.37 -00 30 55.3 23.7z 19GG186 T09 C~8HRL 2019 02 04.51415 11 03 38.29 -00 25 05.5 25.1g 19GG186 T09 C~870k 2019 02 04.53977 11 03 38.19 -00 25 04.7 25.4g 19GG186 T09 C~870k 2019 02 04.54187 11 03 38.19 -00 25 04.7 25.6g 19GG186 T09 C~870k 2019 03 15.35287 11 00 59.73 -00 08 05.5 24.2y 19GG186 T09 C~870k 2019 03 15.39488 11 00 59.55 -00 08 04.4 23.8y 19GG186 T09 C~870k 2019 03 15.42479 11 00 59.44 -00 08 03.6 23.7y 19GG186 T09 C~870k 2019 03 15.43832 11 00 59.36 -00 08 03.1 23.3y 19GG186 T09 C~870k 2019 03 15.51887 11 00 59.02 -00 08 00.7 23.3y 19GG186 T09 C~870k 2019 04 05.39240 10 59 37.73 +00 02 19.3 24.5r 19GG186 T09 C~870k 2019 04 05.43741 10 59 37.56 +00 02 20.5 24.3r 19GG186 T09 C~870k 2019 04 05.50326 10 59 37.32 +00 02 22.3 24.2r 19GG186 T09 C~870l 2019 04 05.51582 10 59 37.28 +00 02 23.0 24.4r 19GG186 T09 C~870l
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 -0.13 0.00 -0.05
2 0.0001 -0.81 0.09 -0.01 0.09
3 0.0655 -1105.32 0.11 -85.94 -0.22
4 0.0656 -1107.01 -0.08 -85.78 0.00
5 0.0656 -1107.01 0.05 -85.78 0.01
6 0.1718 -3693.52 -0.08 -69.88 0.22
7 0.1720 -3696.44 -0.04 -69.91 0.07
8 0.1720 -3698.27 0.24 -69.82 0.08
9 0.1721 -3699.57 -0.11 -69.82 0.04
10 0.1723 -3705.20 -0.08 -69.59 0.04
11 0.2294 -5070.26 0.10 28.07 0.01
12 0.2296 -5073.07 0.02 28.19 -0.13
13 0.2297 -5077.09 -0.01 28.45 -0.25
14 0.2298 -5077.92 -0.08 28.86 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.
19GG186 quality flag:1 Type: SCATEXTD SCATNEAR SCATEXTD axisobj 44.041 47.078 42.120 ecceobj 0.171 0.265 0.105 incobj 12.762 12.640 12.904 qmin 35.324 33.390 35.583 qmax 53.106 61.514 49.189 amean 44.027 47.084 42.176 amin 43.626 46.623 41.799 amax 44.480 47.738 42.599 emean 0.174 0.267 0.114 emin 0.157 0.247 0.074 emax 0.195 0.290 0.156 imean 13.347 13.425 13.634 imin 12.470 12.267 12.500 imax 14.312 14.606 14.945 excite_mean 0.289 0.354 0.262 fracstop 1.000 1.000 1.000 cjmean 3.001 2.984 2.998 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 180.2 181.2 182.5 kozaiamp 180.0 180.0 179.9