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: 16AG402 # Created Wed May 21 01:10:47 2025 # Orbit generated from Bernstein formalism # Fitting 11 observations of 11 # Arc: 3.03d # First observation: 2016/01/09 # Last observation: 2016/01/12 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.100849 0.000001 -0.004948 0.056269 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 2.31 DOF: 17 RMS: 0.08 # Min/Max residuals: -0.19 0.10 # Exact a, adot, b, bdot, g, gdot: 2.378358E-05 7.955628E-02 -1.553393E-06 -6.995625E-03 5.264968E-02 -6.647184E-03 # Covariance matrix: 6.5373E-11 2.1817E-07 6.7584E-12 2.1125E-08 3.6760E-08 2.4387E-07 2.1817E-07 7.3128E-04 2.2649E-08 7.0796E-05 1.2319E-04 8.0869E-04 6.7584E-12 2.2649E-08 9.6175E-13 2.1559E-09 3.8156E-09 2.5306E-08 2.1125E-08 7.0796E-05 2.1559E-09 6.8646E-06 1.1926E-05 7.7744E-05 3.6760E-08 1.2319E-04 3.8156E-09 1.1926E-05 2.0754E-05 1.3770E-04 2.4387E-07 8.0869E-04 2.5306E-08 7.7744E-05 1.3770E-04 5.9487E-03 # lat0 lon0 xBary yBary zBary JD0 -14.218153 131.146473 0.385243 -0.222107 -0.877402 2457396.897089 # Heliocentric elements and errors Epoch: 2457390.5000 = 2016/01/03 Mean Anomaly: 334.70297 +/- 190.033 Argument of Peri: 286.81303 +/- 297.874 Long of Asc Node: 241.41491 +/- 12.590 Inclination: 14.53769 +/- 1.246 Eccentricity: 0.19819739 +/- 0.6119 Semi-Major Axis: 23.93933499 +/- 10.9109 Time of Perihelion: 2460396.8094 +/- 22489.8 Perihelion: 19.19462125 +/- 17.0611 Aphelion: 28.68404873 +/- 19.6332 Period (y) 117.1322 +/- 80.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -12.42412238 +/- 1.0482 Ecliptic Y 14.79779814 +/- 1.1997 Ecliptic Z -4.66513768 +/- 0.4037 Ecliptic XDOT -0.00283681 +/- 0.0030 Ecliptic YDOT -0.00304863 +/- 0.0027 Ecliptic ZDOT -0.00026771 +/- 0.0009 # Distances at JD0 (AU) Heliocenter to KBO 19.87705100 +/- 1.1117 Geocenter to KBO 18.99346816 +/- 1.6435 # Hcoef: 10.04
The following table shows the complete astrometric record for 16AG402. 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 (16AG402) followed by the observatory code and reference code for the source of the astrometry.
2016 01 09.39630 08 38 55.42 +03 43 39.9 22.4y 16AG402 T09 C~8r7M 2016 01 09.40251 08 38 55.37 +03 43 40.1 22.9y 16AG402 T09 C~8r7M 2016 01 09.40519 08 38 55.34 +03 43 40.1 22.5y 16AG402 T09 C~8r7M 2016 01 09.41331 08 38 55.27 +03 43 40.3 22.5y 16AG402 T09 C~8r7M 2016 01 09.42139 08 38 55.19 +03 43 40.4 22.4y 16AG402 T09 C~8r7M 2016 01 11.39460 08 38 37.75 +03 44 07.6 24.3g 16AG402 T09 C~8r7M 2016 01 11.39671 08 38 37.73 +03 44 07.6 24.2g 16AG402 T09 C~8r7M 2016 01 11.40736 08 38 37.62 +03 44 07.9 24.1g 16AG402 T09 C~8r7M 2016 01 12.33928 08 38 29.30 +03 44 22.0 22.7z 16AG402 T09 C~8r7M 2016 01 12.41823 08 38 28.58 +03 44 23.4 22.5z 16AG402 T09 C~8r7M 2016 01 12.42630 08 38 28.49 +03 44 23.6 22.3z 16AG402 T09 C~8r7M
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 -0.11
2 0.0000 -0.77 0.07 -0.00 0.02
3 0.0000 -1.21 -0.01 -0.12 -0.03
4 0.0000 -2.27 0.00 -0.20 0.07
5 0.0001 -3.45 -0.11 -0.42 0.04
6 0.0055 -262.50 0.10 -42.63 0.01
7 0.0055 -262.78 0.10 -42.71 -0.02
8 0.0055 -264.45 -0.13 -42.85 0.06
9 0.0081 -388.33 0.09 -61.90 -0.10
10 0.0083 -399.09 0.06 -63.37 0.03
11 0.0083 -400.45 -0.19 -63.53 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.
16AG402 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