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: 23FC55
# Created Wed Jul 17 01:11:59 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 0.017196 -0.000006 0.007021 0.020038 0.000000
# Chi-squared of fit: 1.26 DOF: 6 RMS: 0.08
# Min/Max residuals: -0.17 0.17
# Exact a, adot, b, bdot, g, gdot:
1.308253E-05 1.700641E-02 5.504823E-06 6.959379E-03 2.009156E-02 -9.522032E-03
# Covariance matrix:
7.3851E-13 7.0171E-13 -1.7608E-14 5.7373E-13 1.1916E-12 8.2891E-11
7.0171E-13 8.1064E-10 -1.5031E-11 2.9069E-10 2.5647E-10 4.1578E-08
-1.7608E-14 -1.5031E-11 7.1655E-13 -5.9084E-12 -4.7503E-12 -7.7190E-10
5.7373E-13 2.9069E-10 -5.9084E-12 1.0583E-10 9.2495E-11 1.4944E-08
1.1916E-12 2.5647E-10 -4.7503E-12 9.2495E-11 8.3456E-11 1.3232E-08
8.2891E-11 4.1578E-08 -7.7190E-10 1.4944E-08 1.3232E-08 2.1375E-06
# lat0 lon0 xBary yBary zBary JD0
6.649505 -173.465569 0.111073 0.115434 -0.992138 2460024.868501
# Heliocentric elements and errors
Epoch: 2460020.5000 = 2023/03/17
Mean Anomaly: 334.28617 +/- 5.398
Argument of Peri: 100.08892 +/- 1.269
Long of Asc Node: 170.93771 +/- 0.003
Inclination: 23.19310 +/- 0.004
Eccentricity: 0.56108159 +/- 0.0840
Semi-Major Axis: 78.90277685 +/- 10.6967
Time of Perihelion: 2478305.7592 +/- 952.6
Perihelion: 34.63188170 +/- 8.1209
Aphelion: 123.17367199 +/- 17.9650
Period (y) 700.8848 +/- 142.53
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -50.11209674 +/- 0.0223
Ecliptic Y -5.62933040 +/- 0.0026
Ecliptic Z 5.76367065 +/- 0.0026
Ecliptic XDOT 0.00165137 +/- 0.0002
Ecliptic YDOT -0.00213451 +/- 0.0000
Ecliptic ZDOT 0.00079169 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 50.75560560 +/- 0.0221
Geocenter to KBO 49.77213591 +/- 0.0226
# Hcoef: 6.81
The following table shows the complete astrometric record for 23FC55. 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 (23FC55) followed by the observatory code and reference code for the source of the astrometry.
2023 03 21.36770 12 34 31.159 +03 30 47.33 23.8r 23FC55 568 C~7xZo 2023 03 21.58461 12 34 30.349 +03 30 53.68 23.7r 23FC55 568 C~7xZo 2023 05 16.04769 12 31 27.109 +03 51 47.25 23.8r 23FC55 304 C~7xZo 2023 05 19.05576 12 31 20.287 +03 52 23.93 23.7r 23FC55 304 C~7xZo 2024 03 07.29682 12 39 32.713 +03 23 06.31 23.8r 23FC55 304 C~7xZo 2024 03 08.30534 12 39 29.354 +03 23 35.89 23.8r 23FC55 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 0.06 0.00 -0.01
2 0.0006 -13.65 -0.06 1.03 0.03
3 0.1524 -3028.92 0.05 67.43 -0.03
4 0.1607 -3137.23 -0.05 60.78 0.00
5 0.9635 4328.46 -0.17 1367.45 -0.04
6 0.9663 4270.52 0.17 1374.62 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.
23FC55 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