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: 16GG370 # Created Fri Jan 24 02:11:11 2025 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 88.83d # First observation: 2016/03/04 # Last observation: 2016/06/01 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.029569 0.000010 -0.000532 0.024945 0.000000 # Chi-squared of fit: 3.81 DOF: 22 RMS: 0.09 # Min/Max residuals: -0.15 0.28 # Exact a, adot, b, bdot, g, gdot: 1.484881E-05 2.257572E-02 -2.001464E-07 -2.549466E-04 2.384281E-02 3.246449E-03 # Covariance matrix: 3.9119E-13 3.6249E-11 5.2468E-14 -1.4963E-12 5.7673E-12 -4.4729E-10 3.6249E-11 5.6524E-08 8.0333E-11 -2.2739E-09 7.5539E-09 -9.0202E-07 5.2468E-14 8.0333E-11 3.6199E-13 -4.4650E-12 1.0732E-11 -1.2832E-09 -1.4963E-12 -2.2739E-09 -4.4650E-12 1.0223E-10 -3.0386E-10 3.6308E-08 5.7673E-12 7.5539E-09 1.0732E-11 -3.0386E-10 1.0145E-09 -1.1960E-07 -4.4729E-10 -9.0202E-07 -1.2832E-09 3.6308E-08 -1.1960E-07 1.4589E-05 # lat0 lon0 xBary yBary zBary JD0 -3.381078 176.214714 0.210323 -0.056816 -0.964361 2457451.971739 # Heliocentric elements and errors Epoch: 2457450.5000 = 2016/03/03 Mean Anomaly: 82.14385 +/- 8.424 Argument of Peri: 160.64257 +/- 3.365 Long of Asc Node: 277.43650 +/- 0.164 Inclination: 3.37222 +/- 0.002 Eccentricity: 0.13703949 +/- 0.1652 Semi-Major Axis: 42.90981376 +/- 1.3795 Time of Perihelion: 2434024.0803 +/- 2120.4 Perihelion: 37.02947496 +/- 7.1892 Aphelion: 48.79015255 +/- 7.2614 Period (y) 281.0885 +/- 13.55 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -42.73087854 +/- 0.0558 Ecliptic Y 3.03522492 +/- 0.0037 Ecliptic Z -2.47356808 +/- 0.0033 Ecliptic XDOT -0.00054091 +/- 0.0004 Ecliptic YDOT -0.00256922 +/- 0.0001 Ecliptic ZDOT -0.00005120 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.90989525 +/- 0.0556 Geocenter to KBO 41.94136979 +/- 0.0560 # Hcoef: 8.66
The following table shows the complete astrometric record for 16GG370. 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 (16GG370) followed by the observatory code and reference code for the source of the astrometry.
2016 03 04.47095 11 40 44.15 -01 35 54.6 24.6i 16GG370 T09 C~8AhT 2016 03 04.48179 11 40 44.10 -01 35 54.4 24.7i 16GG370 T09 C~8AhT 2016 03 04.48449 11 40 44.09 -01 35 54.1 24.3i 16GG370 T09 C~8AhT 2016 03 04.53548 11 40 43.86 -01 35 52.9 24.8i 16GG370 T09 C~8AhT 2016 04 04.28576 11 38 30.20 -01 21 23.7 25.4g 16GG370 T09 C~8AhT 2016 04 04.28861 11 38 30.20 -01 21 23.5 26.0g 16GG370 T09 C~8AhT 2016 04 04.29925 11 38 30.16 -01 21 23.2 26.0g 16GG370 T09 C~8AhT 2016 04 04.31200 11 38 30.11 -01 21 23.0 26.5g 16GG370 T09 C~8AhT 2016 04 04.32046 11 38 30.07 -01 21 22.7 25.8g 16GG370 T09 C~8AhT 2016 06 01.25214 11 36 06.46 -01 02 27.4 24.1z 16GG370 T09 C~8AhT 2016 06 01.26853 11 36 06.43 -01 02 27.3 24.5z 16GG370 T09 C~8AhT 2016 06 01.28199 11 36 06.42 -01 02 27.1 24.7z 16GG370 T09 C~8AhT 2016 06 01.29557 11 36 06.41 -01 02 27.1 24.3z 16GG370 T09 C~8AhT 2016 06 01.29827 11 36 06.42 -01 02 27.1 24.4z 16GG370 T09 C~8AhT
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 0.01
2 0.0000 -0.77 0.03 -0.11 -0.09
3 0.0000 -1.02 -0.03 0.10 0.13
4 0.0002 -4.67 -0.03 -0.17 -0.05
5 0.0844 -2189.34 -0.15 1.49 -0.12
6 0.0844 -2189.42 -0.04 1.67 0.06
7 0.0844 -2190.09 0.02 1.71 0.09
8 0.0844 -2190.86 0.13 1.59 -0.04
9 0.0845 -2191.53 0.04 1.63 -0.01
10 0.2431 -4619.70 0.28 187.61 0.12
11 0.2431 -4620.15 -0.03 187.52 -0.04
12 0.2432 -4620.37 -0.13 187.64 0.03
13 0.2432 -4620.51 -0.14 187.58 -0.08
14 0.2432 -4620.37 0.02 187.64 -0.03
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.
16GG370 quality flag:1 Type: SCATNEAR CENTAURR CLASSICAL axisobj 42.564 58.408 41.899 ecceobj 0.140 0.553 0.033 incobj 3.370 3.367 3.369 qmin 30.803 25.572 35.283 qmax 62.831 91.512 49.192 amean 43.713 56.924 42.048 amin 42.303 54.601 41.689 amax 47.434 58.895 42.468 emean 0.218 0.542 0.080 emin 0.130 0.520 0.023 emax 0.335 0.554 0.159 imean 8.752 4.916 5.146 imin 4.931 4.621 3.146 imax 13.615 5.551 6.831 excite_mean 0.266 0.549 0.124 fracstop 1.000 0.021 1.000 cjmean 3.003 2.832 3.060 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 185.7 208.7 181.5 kozaiamp 180.0 37.5 180.0