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: 19GL196 # Created Tue Apr 1 01:11:14 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 19 observations of 19 # Arc: 8.09y # First observation: 2017/01/21 # Last observation: 2025/02/23 # Chi-squared of fit: 12.84 DOF: 32 RMS: 0.15 # Min/Max residuals: -0.38 0.27 # Exact a, adot, b, bdot, g, gdot: 1.490675E-05 2.362525E-02 -6.696246E-06 -9.665656E-03 2.518568E-02 -5.092568E-03 # Covariance matrix: 9.4133E-13 -6.0040E-13 -3.2477E-13 2.4024E-13 -2.3414E-13 -2.4928E-12 -6.0040E-13 4.3348E-13 2.3949E-13 -1.7841E-13 1.9497E-13 1.8527E-12 -3.2477E-13 2.3949E-13 3.1977E-13 -1.3871E-13 8.9519E-14 1.0619E-12 2.4024E-13 -1.7841E-13 -1.3871E-13 8.8448E-14 -7.6249E-14 -7.8762E-13 -2.3414E-13 1.9497E-13 8.9519E-14 -7.6249E-14 2.4286E-13 8.0305E-13 -2.4928E-12 1.8527E-12 1.0619E-12 -7.8762E-13 8.0305E-13 8.1751E-12 # lat0 lon0 xBary yBary zBary JD0 -12.301138 131.657704 0.183077 -0.206214 -0.946583 2457774.843101 # Heliocentric elements and errors Epoch: 2457774.5000 = 2017/01/21 Mean Anomaly: 308.56392 +/- 0.009 Argument of Peri: 284.69105 +/- 0.018 Long of Asc Node: 284.47580 +/- 0.000 Inclination: 25.16478 +/- 0.000 Eccentricity: 0.22718311 +/- 0.0001 Semi-Major Axis: 45.32015281 +/- 0.0038 Time of Perihelion: 2473696.6178 +/- 12.2 Perihelion: 35.02417966 +/- 0.0058 Aphelion: 55.61612595 +/- 0.0068 Period (y) 305.1021 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -26.29612435 +/- 0.0005 Ecliptic Y 29.82475606 +/- 0.0006 Ecliptic Z -8.45945831 +/- 0.0002 Ecliptic XDOT -0.00140768 +/- 0.0000 Ecliptic YDOT -0.00228511 +/- 0.0000 Ecliptic ZDOT -0.00090871 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.65188043 +/- 0.0005 Geocenter to KBO 39.70525733 +/- 0.0008 # Hcoef: 8.16
The following table shows the complete astrometric record for 19GL196. 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 (19GL196) followed by the observatory code and reference code for the source of the astrometry.
2017 01 21.342300 08 42 52.80 +05 26 43.7 19GL196 T09 C~8Zq9 2018 01 10.395595 08 48 28.17 +04 31 04.5 19GL196 T09 C~8Zq9 2018 01 10.423543 08 48 28.04 +04 31 04.7 19GL196 T09 C~8Zq9 2018 12 12.50237 08 55 04.23 +03 37 33.2 23.9i 19GL196 T09 C~8Mho 2018 12 12.51094 08 55 04.19 +03 37 33.2 24.2i 19GL196 T09 C~8Mho 2018 12 12.51372 08 55 04.19 +03 37 33.4 23.9i 19GL196 T09 C~8Mho 2018 12 12.51685 08 55 04.18 +03 37 33.2 23.9i 19GL196 T09 C~8Mho 2018 12 12.53551 08 55 04.13 +03 37 32.9 24.0i 19GL196 T09 C~8Mho 2018 12 12.53846 08 55 04.11 +03 37 33.0 23.8i 19GL196 T09 C~8Mho 2019 04 03.34384 08 47 20.14 +04 01 50.2 23.8i 19GL196 T09 C~8Mho 2019 04 03.38864 08 47 20.04 +04 01 51.1 24.2i 19GL196 T09 C~8Mho 2019 04 03.40733 08 47 20.00 +04 01 51.4 23.7i 19GL196 T09 C~8Mho 2019 04 05.26011 08 47 16.71 +04 02 29.0 24.4r 19GL196 T09 C~8Mho 2019 04 05.30566 08 47 16.62 +04 02 30.2 24.2r 19GL196 T09 C~8Mho 2019 04 05.30775 08 47 16.62 +04 02 29.9 24.8r 19GL196 T09 C~8Mho 2019 04 05.32668 08 47 16.58 +04 02 30.7 24.4r 19GL196 T09 C~8Mho 2025 02 23.148390 09 18 32.495 -01 53 02.30 23.8G 19GL196 G37 C~8iii 2025 02 23.194170 09 18 32.275 -01 53 01.83 19GL196 G37 C~8iii 2025 02 23.250060 09 18 31.998 -01 52 59.95 19GL196 G37 C~8iii
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 0.02 0.00 0.13
2 0.9693 0.00 0.00 0.00 -0.09
3 0.9694 0.00 0.08 0.00 -0.06
4 1.8896 0.00 0.10 0.00 -0.11
5 1.8896 0.00 -0.12 0.00 -0.02
6 1.8896 0.00 0.01 0.00 0.21
7 1.8896 0.00 -0.00 0.00 0.04
8 1.8896 0.00 0.09 0.00 -0.06
9 1.8897 0.00 -0.08 0.00 0.07
10 2.1958 0.00 0.07 0.00 0.22
11 2.1959 0.00 -0.12 0.00 0.19
12 2.1959 0.00 -0.17 0.00 0.11
13 2.2010 0.00 0.14 0.00 -0.30
14 2.2011 0.00 0.01 0.00 -0.03
15 2.2011 0.00 0.07 0.00 -0.37
16 2.2012 0.00 -0.03 0.00 0.05
17 8.0898 0.00 -0.09 0.00 0.27
18 8.0899 0.00 0.03 0.00 -0.38
19 8.0901 0.00 0.06 0.00 0.13
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.
19GL196 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 45.151 45.150 45.151 ecceobj 0.220 0.220 0.220 incobj 25.126 25.126 25.126 qmin 34.498 34.483 34.507 qmax 56.045 56.012 56.210 amean 45.087 45.095 45.144 amin 44.648 44.642 44.650 amax 45.628 45.586 45.628 emean 0.209 0.208 0.207 emin 0.184 0.181 0.181 emax 0.231 0.232 0.232 imean 27.114 27.121 27.122 imin 26.480 26.462 26.437 imax 27.681 27.691 27.716 excite_mean 0.501 0.501 0.501 fracstop 1.000 1.000 1.000 cjmean 2.797 2.797 2.798 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 179.9 181.4 180.7 kozaiamp 180.0 180.0 180.0