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: 16EA367 # Created Wed Mar 26 01:10:48 2025 # Orbit generated from Bernstein formalism # Fitting 19 observations of 19 # Arc: 52.02d # First observation: 2016/01/15 # Last observation: 2016/03/07 Preliminary a, adot, b, bdot, g, gdot: -0.000010 0.026988 -0.000001 -0.016271 0.028822 0.000000 # Chi-squared of fit: 4.92 DOF: 32 RMS: 0.09 # Min/Max residuals: -0.17 0.21 # Exact a, adot, b, bdot, g, gdot: 1.516179E-05 2.647040E-02 -8.851093E-06 -1.625527E-02 2.870842E-02 -2.881095E-03 # Covariance matrix: 3.6429E-13 6.6008E-12 2.9084E-14 -5.7391E-13 2.3137E-12 2.4245E-10 6.6008E-12 3.4427E-08 5.5959E-11 1.2873E-10 5.5466E-09 -9.9584E-09 2.9084E-14 5.5959E-11 3.6281E-13 -2.1878E-12 9.1614E-12 2.2480E-11 -5.7391E-13 1.2873E-10 -2.1878E-12 3.1987E-11 1.4992E-11 -1.6456E-09 2.3137E-12 5.5466E-09 9.1614E-12 1.4992E-11 9.0268E-10 7.2070E-10 2.4245E-10 -9.9584E-09 2.2480E-11 -1.6456E-09 7.2070E-10 6.5187E-07 # lat0 lon0 xBary yBary zBary JD0 -11.517447 141.997017 0.458444 -0.173542 -0.852628 2457402.906499 # Heliocentric elements and errors Epoch: 2457400.5000 = 2016/01/13 Mean Anomaly: 310.05012 +/- 3.998 Argument of Peri: 263.11631 +/- 6.344 Long of Asc Node: 303.71999 +/- 0.116 Inclination: 33.40554 +/- 0.168 Eccentricity: 0.12835153 +/- 0.0247 Semi-Major Axis: 38.44756837 +/- 0.3643 Time of Perihelion: 2469482.3581 +/- 951.5 Perihelion: 33.51276412 +/- 1.0007 Aphelion: 43.38237261 +/- 1.0342 Period (y) 238.4029 +/- 3.39 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.30234912 +/- 0.0281 Ecliptic Y 21.90991902 +/- 0.0220 Ecliptic Z -6.95530747 +/- 0.0073 Ecliptic XDOT -0.00109894 +/- 0.0001 Ecliptic YDOT -0.00235247 +/- 0.0000 Ecliptic ZDOT -0.00146412 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.69088288 +/- 0.0255 Geocenter to KBO 34.83298246 +/- 0.0365 # Hcoef: 8.30
The following table shows the complete astrometric record for 16EA367. 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 (16EA367) followed by the observatory code and reference code for the source of the astrometry.
2016 01 15.40571 09 22 37.58 +03 15 20.2 23.6z 16EA367 T09 C~8eUp 2016 01 15.41917 09 22 37.53 +03 15 20.4 23.2z 16EA367 T09 C~8eUp 2016 01 15.43271 09 22 37.45 +03 15 20.2 23.5z 16EA367 T09 C~8eUp 2016 01 15.47408 09 22 37.21 +03 15 20.6 23.4z 16EA367 T09 C~8eUp 2016 02 08.43961 09 20 21.94 +03 20 17.1 23.7r 16EA367 T09 C~8eUp 2016 02 08.46405 09 20 21.79 +03 20 17.4 23.5r 16EA367 T09 C~8eUp 2016 02 08.50402 09 20 21.56 +03 20 18.1 23.8r 16EA367 T09 C~8eUp 2016 02 08.52379 09 20 21.43 +03 20 18.4 23.6r 16EA367 T09 C~8eUp 2016 02 12.27941 09 19 59.59 +03 21 27.4 23.2y 16EA367 T09 C~89TC 2016 02 12.29636 09 19 59.49 +03 21 27.9 23.3y 16EA367 T09 C~89TC 2016 02 12.30179 09 19 59.46 +03 21 28.0 23.7y 16EA367 T09 C~89TC 2016 03 04.36972 09 18 02.75 +03 29 04.7 23.7i 16EA367 T09 C~89TC 2016 03 04.38346 09 18 02.68 +03 29 05.0 23.6i 16EA367 T09 C~89TC 2016 03 04.40242 09 18 02.58 +03 29 05.5 23.7i 16EA367 T09 C~89TC 2016 03 04.41599 09 18 02.51 +03 29 05.8 23.6i 16EA367 T09 C~89TC 2016 03 07.34213 09 17 47.75 +03 30 15.0 24.7g 16EA367 T09 C~89TC 2016 03 07.36623 09 17 47.64 +03 30 15.5 24.5g 16EA367 T09 C~89TC 2016 03 07.39772 09 17 47.49 +03 30 16.1 24.4g 16EA367 T09 C~89TC 2016 03 07.42573 09 17 47.33 +03 30 16.8 24.6g 16EA367 T09 C~89TC
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 -0.12 0.00 -0.02
2 0.0000 -0.77 0.15 -0.05 0.19
3 0.0001 -1.85 0.14 -0.61 -0.11
4 0.0002 -5.39 -0.17 -1.36 -0.07
5 0.0658 -2021.91 0.02 -355.25 0.16
6 0.0659 -2024.14 -0.01 -355.67 0.01
7 0.0660 -2027.63 0.09 -356.08 0.03
8 0.0660 -2029.57 -0.08 -356.41 -0.08
9 0.0763 -2361.80 0.03 -393.37 -0.15
10 0.0764 -2363.38 -0.04 -393.37 0.02
11 0.0764 -2363.84 -0.01 -393.41 0.03
12 0.1341 -4166.97 -0.02 -506.83 -0.03
13 0.1341 -4168.06 0.02 -506.87 -0.04
14 0.1341 -4169.64 -0.01 -506.86 0.01
15 0.1342 -4170.73 0.00 -506.91 -0.01
16 0.1422 -4402.37 -0.16 -510.31 0.08
17 0.1423 -4404.09 0.03 -510.35 0.07
18 0.1423 -4406.42 0.21 -510.48 -0.02
19 0.1424 -4408.91 -0.07 -510.57 -0.07
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.
16EA367 quality flag:2 Type: SCATEXTD 3:2E SCATEXTD axisobj 38.266 39.326 37.319 ecceobj 0.122 0.161 0.094 incobj 33.447 32.950 34.002 qmin 32.941 27.103 33.332 qmax 43.641 52.722 41.532 amean 38.153 39.455 37.320 amin 37.831 38.887 37.024 amax 38.567 40.110 37.622 emean 0.109 0.230 0.086 emin 0.081 0.103 0.071 emax 0.134 0.316 0.104 imean 35.067 33.264 35.575 imin 34.611 31.019 35.122 imax 35.546 35.043 35.993 excite_mean 0.585 0.597 0.588 fracstop 1.000 1.000 1.000 cjmean 2.621 2.623 2.610 libcent 0 -180.0 183.4 -180.0 libamp 0 -180.0 172.9 -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 182.1 186.4 186.4 kozaiamp 180.0 179.9 179.9