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: 19GK196 # Created Tue Jan 21 02:11:21 2025 # Orbit generated from Bernstein formalism # Fitting 22 observations of 22 # Arc: 3.18y # First observation: 2016/04/01 # Last observation: 2019/06/08 Preliminary a, adot, b, bdot, g, gdot: 0.000029 0.034159 -0.000042 -0.019144 0.033536 0.000000 # Chi-squared of fit: 61.19 DOF: 38 RMS: 0.29 # Min/Max residuals: -1.59 0.51 # Exact a, adot, b, bdot, g, gdot: 1.705671E-05 3.432765E-02 -9.767603E-06 -1.927012E-02 3.205233E-02 -7.597152E-04 # Covariance matrix: 2.4473E-13 -4.7251E-14 7.9866E-17 -1.8974E-14 5.7743E-15 3.2497E-13 -4.7251E-14 3.8226E-11 1.3796E-13 -2.1795E-11 2.5861E-11 3.6848E-10 7.9866E-17 1.3796E-13 2.4466E-13 -1.5844E-13 9.4535E-14 1.3303E-12 -1.8974E-14 -2.1795E-11 -1.5844E-13 1.2475E-11 -1.4746E-11 -2.1031E-10 5.7743E-15 2.5861E-11 9.4535E-14 -1.4746E-11 1.7995E-11 2.4918E-10 3.2497E-13 3.6848E-10 1.3303E-12 -2.1031E-10 2.4918E-10 3.5556E-09 # lat0 lon0 xBary yBary zBary JD0 -2.874508 154.526827 -0.600575 -0.039648 -0.792666 2457479.745730 # Heliocentric elements and errors Epoch: 2457470.5000 = 2016/03/23 Mean Anomaly: 359.15002 +/- 0.287 Argument of Peri: 187.06206 +/- 0.469 Long of Asc Node: 330.60939 +/- 0.000 Inclination: 29.31964 +/- 0.001 Eccentricity: 0.22732402 +/- 0.0002 Semi-Major Axis: 41.41231940 +/- 0.0122 Time of Perihelion: 2457700.3252 +/- 77.7 Perihelion: 31.99830457 +/- 0.0115 Aphelion: 50.82633423 +/- 0.0163 Period (y) 266.5033 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -29.10937925 +/- 0.0037 Ecliptic Y 13.19806677 +/- 0.0018 Ecliptic Z -1.56488012 +/- 0.0002 Ecliptic XDOT -0.00112798 +/- 0.0000 Ecliptic YDOT -0.00271751 +/- 0.0000 Ecliptic ZDOT -0.00164069 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 31.99990276 +/- 0.0035 Geocenter to KBO 31.19898459 +/- 0.0041 # Hcoef: 9.49
The following table shows the complete astrometric record for 19GK196. 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 (19GK196) followed by the observatory code and reference code for the source of the astrometry.
2016 04 01.244941 10 21 20.35 +07 10 20.3 19GK196 T09 C~8Zq9 2016 04 01.263605 10 21 20.26 +07 10 20.5 19GK196 T09 C~8Zq9 2016 04 01.328656 10 21 19.95 +07 10 21.8 19GK196 T09 C~8Zq9 2016 04 01.350040 10 21 19.85 +07 10 22.3 19GK196 T09 C~8Zq9 2016 04 01.416527 10 21 19.52 +07 10 23.6 19GK196 T09 C~8Zq9 2016 04 01.441479 10 21 19.40 +07 10 24.0 19GK196 T09 C~8Zq9 2019 01 09.527373 10 46 05.02 +01 28 39.7 19GK196 T09 C~8Zq9 2019 04 07.33655 10 38 07.63 +01 57 39.1 25.5g 19GK196 T09 C~8Mho 2019 04 07.36014 10 38 07.52 +01 57 39.8 25.2g 19GK196 T09 C~8Mho 2019 04 07.37920 10 38 07.43 +01 57 40.3 25.7g 19GK196 T09 C~8Mho 2019 04 08.24145 10 38 03.48 +01 57 59.2 23.4y 19GK196 T09 C~8Mho 2019 04 08.27248 10 38 03.35 +01 58 01.2 23.3y 19GK196 T09 C~8Mho 2019 04 08.33583 10 38 03.07 +01 58 03.5 23.6y 19GK196 T09 C~8Mho 2019 04 08.36293 10 38 02.95 +01 58 03.7 24.2y 19GK196 T09 C~8Mho 2019 05 08.33595 10 36 29.78 +02 06 45.4 25.3i 19GK196 T09 C~8Mho 2019 05 08.36272 10 36 29.73 +02 06 45.6 24.6i 19GK196 T09 C~8Mho 2019 05 08.39224 10 36 29.67 +02 06 45.9 24.5i 19GK196 T09 C~8Mho 2019 05 08.39491 10 36 29.68 +02 06 46.3 24.7i 19GK196 T09 C~8Mho 2019 05 31.263106 10 36 24.16 +02 07 43.4 19GK196 T09 C~8Zq9 2019 05 31.333330 10 36 24.21 +02 07 42.9 19GK196 T09 C~8Zq9 2019 06 08.258078 10 36 36.31 +02 06 40.6 19GK196 T09 C~8Zq9 2019 06 08.316058 10 36 36.41 +02 06 40.0 19GK196 T09 C~8Zq9
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 -0.03 0.00 0.05
2 0.0001 -1.32 0.03 -0.30 -0.10
3 0.0002 -6.09 0.06 -0.76 -0.03
4 0.0003 -7.66 0.07 -0.83 0.07
5 0.0005 -12.71 -0.07 -1.39 0.05
6 0.0005 -14.52 -0.05 -1.67 -0.03
7 2.7742 28370.35 0.18 -11015.38 0.12
8 3.0146 20962.47 -0.07 -12021.90 -0.04
9 3.0147 20960.66 -0.10 -12021.85 0.09
10 3.0147 20959.20 -0.12 -12021.87 0.13
11 3.0171 20896.45 0.02 -12025.90 -1.59
12 3.0172 20893.87 -0.26 -12024.74 -0.33
13 3.0174 20889.06 -0.38 -12024.12 0.50
14 3.0174 20887.30 -0.14 -12024.60 0.11
15 3.0995 19379.97 0.25 -12048.07 0.22
16 3.0996 19379.19 0.18 -12048.16 0.13
17 3.0997 19378.24 0.00 -12048.21 0.08
18 3.0997 19378.23 0.07 -12047.78 0.51
19 3.1623 19279.22 0.14 -12024.58 0.19
20 3.1625 19280.11 -0.08 -12024.77 -0.05
21 3.1842 19473.68 0.23 -12016.63 -0.02
22 3.1843 19475.31 0.08 -12016.64 -0.06
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.
19GK196 quality flag:3 Type: 8:5EEE 8:5EEE 8:5EEE Type: 8:5EII 8:5EII 8:5EII axisobj 41.179 41.209 41.150 ecceobj 0.222 0.223 0.221 incobj 29.396 29.399 29.393 qmin 31.511 31.540 31.133 qmax 51.242 51.237 51.618 amean 41.188 41.188 41.188 amin 40.865 40.848 40.839 amax 41.575 41.580 41.578 emean 0.193 0.195 0.179 emin 0.153 0.156 0.127 emax 0.234 0.233 0.243 imean 31.047 31.022 31.232 imin 30.048 30.070 30.031 imax 31.598 31.543 32.119 excite_mean 0.551 0.551 0.550 fracstop 1.000 1.000 1.000 cjmean 2.696 2.695 2.696 libcent 0 179.2 179.1 180.2 libamp 0 50.4 42.6 75.3 libcent 1 181.7 181.7 179.6 libamp 1 67.7 61.1 93.9 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 180.3 180.2 182.4 kozaiamp 19.1 18.4 23.9