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: 16GX367 # Created Tue Apr 1 01:10:47 2025 # Orbit generated from Bernstein formalism # Fitting 24 observations of 24 # Arc: 34.95d # First observation: 2016/03/07 # Last observation: 2016/04/11 Preliminary a, adot, b, bdot, g, gdot: 0.000001 0.017521 -0.000003 -0.001749 0.019860 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 7.48 DOF: 43 RMS: 0.10 # Min/Max residuals: -0.25 0.23 # Exact a, adot, b, bdot, g, gdot: 1.247115E-05 1.550255E-02 -1.790860E-06 -1.568335E-03 1.940546E-02 -6.185370E-03 # Covariance matrix: 4.3210E-13 4.7178E-11 -8.3197E-14 -4.3693E-12 1.3251E-11 2.6372E-09 4.7178E-11 1.5332E-07 -1.6240E-10 -1.3775E-08 3.0873E-08 2.3351E-06 -8.3197E-14 -1.6240E-10 4.0957E-13 1.1856E-11 -3.3239E-11 -2.7845E-09 -4.3693E-12 -1.3775E-08 1.1856E-11 1.2811E-09 -2.7726E-09 -2.0868E-07 1.3251E-11 3.0873E-08 -3.3239E-11 -2.7726E-09 6.2741E-09 5.0308E-07 2.6372E-09 2.3351E-06 -2.7845E-09 -2.0868E-07 5.0308E-07 5.4788E-05 # lat0 lon0 xBary yBary zBary JD0 11.679207 -150.536243 0.666820 0.148079 -0.715656 2457455.109939 # Heliocentric elements and errors Epoch: 2457450.5000 = 2016/03/03 Mean Anomaly: 290.38565 +/- 62.375 Argument of Peri: 229.49816 +/- 18.764 Long of Asc Node: 92.05413 +/- 0.527 Inclination: 12.84219 +/- 0.058 Eccentricity: 0.37839765 +/- 0.3802 Semi-Major Axis: 51.81904275 +/- 15.4228 Time of Perihelion: 2483797.3534 +/- 20468.1 Perihelion: 32.21083861 +/- 21.9081 Aphelion: 71.42724688 +/- 28.9826 Period (y) 373.0287 +/- 166.54 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -44.90596359 +/- 0.1793 Ecliptic Y -24.60368758 +/- 0.1013 Ecliptic Z 10.43163029 +/- 0.0426 Ecliptic XDOT 0.00178077 +/- 0.0009 Ecliptic YDOT -0.00151298 +/- 0.0005 Ecliptic ZDOT -0.00039334 +/- 0.0002 # Distances at JD0 (AU) Heliocenter to KBO 52.25615676 +/- 0.1616 Geocenter to KBO 51.53189302 +/- 0.2103 # Hcoef: 7.59
The following table shows the complete astrometric record for 16GX367. 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 (16GX367) followed by the observatory code and reference code for the source of the astrometry.
2016 03 07.60915 14 05 59.59 -00 20 12.3 25.4g 16GX367 T09 C~89Tb 2016 03 07.61343 14 05 59.57 -00 20 12.2 25.6g 16GX367 T09 C~89Tb 2016 03 07.64412 14 05 59.50 -00 20 11.7 25.6g 16GX367 T09 C~89Tb 2016 03 16.46636 14 05 36.08 -00 16 47.7 24.0z 16GX367 T09 C~89Tb 2016 03 16.49362 14 05 35.98 -00 16 47.0 24.9z 16GX367 T09 C~89Tb 2016 03 16.51315 14 05 35.94 -00 16 46.5 24.3z 16GX367 T09 C~89Tb 2016 03 16.54620 14 05 35.84 -00 16 46.0 24.9z 16GX367 T09 C~89Tb 2016 03 16.56805 14 05 35.78 -00 16 45.4 24.2z 16GX367 T09 C~89Tb 2016 03 16.59256 14 05 35.71 -00 16 45.0 25.0z 16GX367 T09 C~89Tb 2016 04 08.53538 14 04 19.59 -00 07 52.2 24.4r 16GX367 T09 C~89Tb 2016 04 08.54322 14 04 19.57 -00 07 52.2 24.7r 16GX367 T09 C~89Tb 2016 04 08.54746 14 04 19.56 -00 07 52.2 24.7r 16GX367 T09 C~89Tb 2016 04 08.55823 14 04 19.50 -00 07 51.8 24.7r 16GX367 T09 C~89Tb 2016 04 08.56882 14 04 19.47 -00 07 51.8 24.6r 16GX367 T09 C~89Tb 2016 04 08.57093 14 04 19.46 -00 07 51.8 24.9r 16GX367 T09 C~89Tb 2016 04 11.43756 14 04 08.93 -00 06 48.7 24.3i 16GX367 T09 C~89Tb 2016 04 11.46218 14 04 08.84 -00 06 48.0 24.4i 16GX367 T09 C~89Tb 2016 04 11.48411 14 04 08.76 -00 06 47.5 24.2i 16GX367 T09 C~89Tb 2016 04 11.50575 14 04 08.68 -00 06 47.0 24.5i 16GX367 T09 C~89Tb 2016 04 11.50846 14 04 08.67 -00 06 47.0 24.5i 16GX367 T09 C~89Tb 2016 04 11.52732 14 04 08.60 -00 06 46.7 24.5i 16GX367 T09 C~89Tb 2016 04 11.53541 14 04 08.56 -00 06 46.5 24.9i 16GX367 T09 C~89Tb 2016 04 11.54904 14 04 08.51 -00 06 46.2 24.2i 16GX367 T09 C~89Tb 2016 04 11.55443 14 04 08.49 -00 06 46.0 24.1i 16GX367 T09 C~89Tb
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 0.11
2 0.0000 -0.32 -0.10 -0.01 0.06
3 0.0001 -1.47 0.06 0.10 -0.09
4 0.0242 -401.68 0.05 69.80 0.05
5 0.0243 -403.33 -0.25 69.94 0.01
6 0.0244 -404.07 -0.02 70.20 0.14
7 0.0245 -405.65 0.03 70.15 -0.13
8 0.0245 -406.70 0.07 70.40 -0.03
9 0.0246 -407.82 0.16 70.41 -0.18
10 0.0874 -1663.52 -0.15 174.77 0.23
11 0.0874 -1663.80 0.04 174.67 0.12
12 0.0874 -1663.94 0.15 174.61 0.06
13 0.0875 -1664.92 -0.18 174.68 0.10
14 0.0875 -1665.34 0.03 174.52 -0.07
15 0.0875 -1665.48 0.01 174.47 -0.12
16 0.0954 -1835.52 0.01 178.96 -0.16
17 0.0954 -1837.03 -0.01 179.14 0.01
18 0.0955 -1838.33 0.02 179.20 0.05
19 0.0955 -1839.63 0.03 179.25 0.08
20 0.0955 -1839.77 0.05 179.20 0.03
21 0.0956 -1840.86 0.10 179.12 -0.07
22 0.0956 -1841.49 -0.04 179.10 -0.10
23 0.0957 -1842.30 -0.02 179.12 -0.09
24 0.0957 -1842.65 -0.05 179.20 -0.01
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.
16GX367 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0