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: 16FE60 # Created Wed Nov 27 02:10:37 2024 # Orbit generated from Bernstein formalism # Fitting 14 observations of 14 # Arc: 11.93d # First observation: 2016/03/29 # Last observation: 2016/04/10 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.033210 0.000000 0.003003 0.028657 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 38.96 DOF: 23 RMS: 0.29 # Min/Max residuals: -0.76 0.71 # Exact a, adot, b, bdot, g, gdot: 1.622073E-05 2.867341E-02 2.024515E-06 3.120728E-03 2.793765E-02 -9.560863E-03 # Covariance matrix: 9.4918E-12 1.5117E-08 3.9894E-13 -3.8286E-10 2.4520E-09 -9.8584E-10 1.5117E-08 2.4610E-05 6.5160E-10 -6.2357E-07 3.9854E-06 -7.0079E-06 3.9894E-13 6.5160E-10 1.6872E-13 -2.5232E-11 1.0544E-10 -3.0458E-10 -3.8286E-10 -6.2357E-07 -2.5232E-11 1.7436E-08 -1.0096E-07 2.0888E-07 2.4520E-09 3.9854E-06 1.0544E-10 -1.0096E-07 6.4557E-07 -9.4915E-07 -9.8584E-10 -7.0079E-06 -3.0458E-10 2.0888E-07 -9.4915E-07 2.5545E-04 # lat0 lon0 xBary yBary zBary JD0 -8.159603 -176.591663 -0.090714 -0.140390 -0.980340 2457476.715790 # Heliocentric elements and errors Epoch: 2457470.5000 = 2016/03/23 Mean Anomaly: 306.76432 +/- 53.745 Argument of Peri: 38.16412 +/- 50.359 Long of Asc Node: 234.98996 +/- 5.869 Inclination: 10.11339 +/- 0.816 Eccentricity: 0.32723366 +/- 0.5561 Semi-Major Axis: 41.18070077 +/- 20.4557 Time of Perihelion: 2471744.2913 +/- 9723.5 Perihelion: 27.70498919 +/- 26.7171 Aphelion: 54.65641234 +/- 35.5178 Period (y) 264.2706 +/- 196.91 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -36.35589841 +/- 1.0172 Ecliptic Y -2.25849525 +/- 0.0605 Ecliptic Z -5.08021505 +/- 0.1461 Ecliptic XDOT 0.00104962 +/- 0.0015 Ecliptic YDOT -0.00275940 +/- 0.0004 Ecliptic ZDOT 0.00043572 +/- 0.0002 # Distances at JD0 (AU) Heliocenter to KBO 36.77853634 +/- 1.0057 Geocenter to KBO 35.79398649 +/- 1.0294 # Hcoef: 8.09
The following table shows the complete astrometric record for 16FE60. 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 (16FE60) followed by the observatory code and reference code for the source of the astrometry.
2016 03 29.215001 11 59 25.72 -08 50 14.1 16FE60 W84 C~3cxs 2016 03 29.218182 11 59 25.69 -08 50 13.9 16FE60 W84 C~3cxs 2016 03 29.221381 11 59 25.69 -08 50 13.8 16FE60 W84 C~3cxs 2016 03 29.224570 11 59 25.68 -08 50 13.6 16FE60 W84 C~3cxs 2016 03 30.23576 11 59 20.56 -08 49 37.1 24.3V 16FE60 W84 C~1qoK 2016 03 30.24270 11 59 20.56 -08 49 37.1 16FE60 W84 C~1qoK 2016 03 30.24964 11 59 20.55 -08 49 37.2 16FE60 W84 C~1qoK 2016 03 31.22827 11 59 15.59 -08 49 01.2 16FE60 W84 C~1qoK 2016 03 31.23521 11 59 15.58 -08 49 01.4 16FE60 W84 C~1qoK 2016 03 31.24215 11 59 15.58 -08 49 01.4 16FE60 W84 C~1qoK 2016 04 01.24230 11 59 10.51 -08 48 24.6 16FE60 W84 C~1qoK 2016 04 01.24924 11 59 10.52 -08 48 24.7 16FE60 W84 C~1qoK 2016 04 01.25618 11 59 10.53 -08 48 24.7 16FE60 W84 C~1qoK 2016 04 10.146627 11 58 27.34 -08 42 58.5 23.6g 16FE60 W84 C~5bmN
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 0.00 0.00 -0.05
2 0.0000 -0.49 -0.22 0.00 -0.06
3 0.0000 -0.53 0.01 0.10 0.03
4 0.0000 -0.74 0.06 0.22 0.14
5 0.0028 -84.90 -0.50 3.14 0.09
6 0.0028 -84.90 0.08 3.14 0.07
7 0.0028 -85.00 0.57 2.99 -0.10
8 0.0055 -166.79 -0.53 6.41 0.19
9 0.0055 -166.84 -0.00 6.17 -0.07
10 0.0056 -166.84 0.57 6.17 -0.10
11 0.0083 -250.45 -0.76 9.65 -0.04
12 0.0083 -250.27 -0.00 9.62 -0.09
13 0.0083 -250.14 0.71 9.68 -0.06
14 0.0327 -967.56 -0.01 50.79 0.04
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.
16FE60 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