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: 23FY54 # Created Wed Dec 25 02:11:20 2024 # Orbit generated from Bernstein formalism # Fitting 6 observations of 6 # Arc: 0.97y # First observation: 2023/03/21 # Last observation: 2024/03/08 Preliminary a, adot, b, bdot, g, gdot: -0.000000 0.013927 -0.000001 0.001139 0.017470 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 0.86 DOF: 7 RMS: 0.07 # Min/Max residuals: -0.13 0.11 # Exact a, adot, b, bdot, g, gdot: 1.260807E-05 1.397381E-02 5.072084E-07 1.143927E-03 1.768302E-02 6.876151E-03 # Covariance matrix: 7.4498E-13 5.2416E-12 -3.2094E-14 4.6689E-13 3.8666E-12 4.0232E-10 5.2416E-12 4.5733E-09 -2.2002E-11 3.4037E-10 2.0049E-09 2.9458E-07 -3.2094E-14 -2.2002E-11 5.4662E-13 -2.1546E-12 -9.6683E-12 -1.4181E-09 4.6689E-13 3.4037E-10 -2.1546E-12 2.6728E-11 1.4944E-10 2.1936E-08 3.8666E-12 2.0049E-09 -9.6683E-12 1.4944E-10 8.8526E-10 1.2932E-07 4.0232E-10 2.9458E-07 -1.4181E-09 2.1936E-08 1.2932E-07 1.8984E-05 # lat0 lon0 xBary yBary zBary JD0 -0.290501 150.872839 -0.490068 -0.004667 -0.877319 2460024.738791 # Heliocentric elements and errors Epoch: 2460020.5000 = 2023/03/17 Mean Anomaly: 48.01609 +/- 27.595 Argument of Peri: 254.28346 +/- 7.268 Long of Asc Node: 154.82199 +/- 0.007 Inclination: 4.72322 +/- 0.010 Eccentricity: 0.46590651 +/- 0.2746 Semi-Major Axis: 66.09915399 +/- 21.4562 Time of Perihelion: 2433840.0830 +/- 7992.6 Perihelion: 35.30312788 +/- 21.4665 Aphelion: 96.89518009 +/- 36.3148 Period (y) 537.4054 +/- 261.67 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -50.39573298 +/- 0.0831 Ecliptic Y 27.52496563 +/- 0.0463 Ecliptic Z -0.28669141 +/- 0.0005 Ecliptic XDOT -0.00198579 +/- 0.0006 Ecliptic YDOT -0.00136261 +/- 0.0003 Ecliptic ZDOT 0.00017169 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 57.42330387 +/- 0.0762 Geocenter to KBO 56.55144214 +/- 0.0952 # Hcoef: 7.52
The following table shows the complete astrometric record for 23FY54. 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 (23FY54) followed by the observatory code and reference code for the source of the astrometry.
2023 03 21.23799 10 11 16.217 +10 53 32.30 25.0r 23FY54 568 C~7xZo 2023 03 21.43473 10 11 15.612 +10 53 35.53 25.1r 23FY54 568 C~7xZo 2023 05 15.97864 10 09 46.184 +11 02 45.54 25.1r 23FY54 304 C~7xZo 2023 05 18.98344 10 09 46.674 +11 02 45.74 24.9r 23FY54 304 C~7xZo 2024 03 07.23577 10 15 05.440 +10 36 08.62 25.1r 23FY54 304 C~7xZo 2024 03 08.22684 10 15 02.135 +10 36 28.09 25.2r 23FY54 304 C~7xZo
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 0.0005 -9.48 0.02 -0.13 -0.13
3 0.1526 -1435.80 0.03 49.20 0.04
4 0.1608 -1429.12 -0.03 51.93 -0.02
5 0.9637 3528.78 -0.08 224.69 -0.05
6 0.9664 3476.30 0.08 225.50 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.
23FY54 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