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: 15FV399 # Created Sun Feb 23 02:10:19 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 63.84d # First observation: 2015/03/18 # Last observation: 2015/05/21 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.034571 -0.000000 -0.019028 0.028178 0.000000 # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING Fitting with energy constraint # Chi-squared of fit: 2.72 DOF: 15 RMS: 0.09 # Min/Max residuals: -0.20 0.28 # Exact a, adot, b, bdot, g, gdot: 1.517857E-05 2.578447E-02 -1.131235E-05 -1.911013E-02 2.678420E-02 2.121654E-03 # Covariance matrix: 1.6052E-12 1.6905E-09 -3.0489E-14 9.7820E-12 2.7525E-10 -1.4558E-08 1.6905E-09 2.5378E-06 -8.4610E-11 2.3534E-08 4.0241E-07 -2.4495E-05 -3.0489E-14 -8.4610E-11 2.6506E-13 -3.0363E-12 -1.2590E-11 1.0277E-09 9.7820E-12 2.3534E-08 -3.0363E-12 4.0015E-10 3.5434E-09 -2.7525E-07 2.7525E-10 4.0241E-07 -1.2590E-11 3.5434E-09 6.4030E-08 -3.8276E-06 -1.4558E-08 -2.4495E-05 1.0277E-09 -2.7525E-07 -3.8276E-06 2.5087E-04 # lat0 lon0 xBary yBary zBary JD0 -2.063358 178.407565 0.017445 -0.035594 -0.991371 2457100.026114 # Heliocentric elements and errors Epoch: 2457100.5000 = 2015/03/19 Mean Anomaly: 5.03088 +/- 36.446 Argument of Peri: 170.31304 +/- 96.252 Long of Asc Node: 355.66580 +/- 0.170 Inclination: 36.53056 +/- 1.720 Eccentricity: 0.40874354 +/- 0.0901 Semi-Major Axis: 64.34104201 +/- 3.3679 Time of Perihelion: 2454466.1587 +/- 19083.2 Perihelion: 38.04205702 +/- 6.1266 Aphelion: 90.64002700 +/- 7.4886 Period (y) 516.1077 +/- 40.52 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.29109910 +/- 0.3524 Ecliptic Y 1.08173961 +/- 0.0098 Ecliptic Z -1.34464960 +/- 0.0127 Ecliptic XDOT -0.00022301 +/- 0.0016 Ecliptic YDOT -0.00263634 +/- 0.0002 Ecliptic ZDOT -0.00195987 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 38.32996887 +/- 0.3520 Geocenter to KBO 37.33544995 +/- 0.3527 # Hcoef: 8.77
The following table shows the complete astrometric record for 15FV399. 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 (15FV399) followed by the observatory code and reference code for the source of the astrometry.
2015 03 18.525336 11 50 52.409 -01 15 35.44 24.4r 15FV399 568 C~2TuI 2015 03 18.553643 11 50 52.256 -01 15 34.78 24.4r 15FV399 568 C~2TuI 2015 03 18.570878 11 50 52.169 -01 15 34.43 24.3r 15FV399 568 C~2TuI 2015 03 22.459904 11 50 31.821 -01 14 07.89 23.9i 15FV399 568 C~2TuI 2015 03 22.482300 11 50 31.703 -01 14 07.37 24.0i 15FV399 568 C~2TuI 2015 03 22.518396 11 50 31.507 -01 14 06.60 24.1i 15FV399 568 C~2TuI 2015 05 21.30387 11 46 31.38 -00 57 48.5 24.7i 15FV399 T09 C~8eRZ 2015 05 21.31338 11 46 31.33 -00 57 48.3 25.0i 15FV399 T09 C~8eRZ 2015 05 21.32146 11 46 31.32 -00 57 48.3 24.5i 15FV399 T09 C~8eRZ 2015 05 21.36227 11 46 31.24 -00 57 48.2 24.6i 15FV399 T09 C~8eRZ
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 0.01 0.00 0.01
2 0.0001 -2.37 -0.04 -0.31 0.02
3 0.0001 -3.70 0.03 -0.50 0.02
4 0.0108 -318.10 0.01 -42.47 -0.01
5 0.0108 -319.93 0.02 -42.70 0.01
6 0.0109 -322.93 -0.03 -43.16 -0.05
7 0.1746 -4016.51 0.28 -578.87 0.04
8 0.1746 -4017.28 -0.20 -578.99 0.00
9 0.1747 -4017.41 -0.09 -579.05 0.01
10 0.1748 -4018.56 0.01 -579.43 -0.05
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.
15FV399 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