Orbit Fit and Astrometric record for 23FX54

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: 23FX54    
# Created Wed Dec 25 02:11:20 2024
# Orbit generated from Bernstein formalism
# Fitting      8 observations of      8
# Arc:   0.97y
# First observation: 2023/03/21
#  Last observation: 2024/03/08
Preliminary a, adot, b, bdot, g, gdot:
  -0.000014   0.023683   0.000001  -0.000308   0.023819   0.000000
# Chi-squared of fit:     2.84 DOF:     10 RMS:  0.11
# Min/Max residuals:    -0.19    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.534469E-05  2.360446E-02  7.482664E-08 -3.081046E-04  2.405694E-02  6.370811E-04
# Covariance matrix:
  7.4771E-13  6.0446E-12  2.5046E-14 -9.8513E-14  3.2592E-12  2.6993E-10
  6.0446E-12  8.0812E-10  1.9361E-12 -1.0452E-11  2.6048E-10  3.1185E-08
  2.5046E-14  1.9361E-12  3.0259E-13 -3.9641E-13  6.5375E-13  7.5359E-11
 -9.8513E-14 -1.0452E-11 -3.9641E-13  1.3633E-12 -3.4200E-12 -4.0480E-10
  3.2592E-12  2.6048E-10  6.5375E-13 -3.4200E-12  8.7624E-11  1.0132E-08
  2.6993E-10  3.1185E-08  7.5359E-11 -4.0480E-10  1.0132E-08  1.2065E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.578418  163.308696   -0.291339    0.026269   -0.961462  2460024.839821
# Heliocentric elements and errors
Epoch:              2460020.5000  =  2023/03/17
Mean Anomaly:           45.86378 +/-    31.394
Argument of Peri:       66.32294 +/-    36.555
Long of Asc Node:       47.39022 +/-     0.091
Inclination:             1.72119 +/-     0.001
Eccentricity:         0.04776856 +/-    0.0373
Semi-Major Axis:     43.92866846 +/-    0.1689
Time of Perihelion: 2446472.1042 +/-    9273.6
Perihelion:          41.83025918 +/-    1.6447
Aphelion:            46.02707775 +/-    1.6464
Period (y)              291.1590 +/-      1.68
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.79772188 +/-    0.0155
Ecliptic Y           11.93162352 +/-    0.0047
Ecliptic Z            1.14501076 +/-    0.0004
Ecliptic XDOT        -0.00084382 +/-    0.0001
Ecliptic YDOT        -0.00254337 +/-    0.0000
Ecliptic ZDOT        -0.00003308 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.52209778 +/-    0.0149
Geocenter to KBO     41.56803934 +/-    0.0162
# Hcoef:  6.54

The following table shows the complete astrometric record for 23FX54. 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 (23FX54) followed by the observatory code and reference code for the source of the astrometry.

2023 03  21.33902  11 00 55.051  +08 01 03.18  22.5r 23FX54    568  C~7xZo      
2023 03  21.54320  11 00 54.148  +08 01 08.40  22.7r 23FX54    568  C~7xZo      
2023 04  22.15946  10 58 58.962  +08 12 13.10  22.8r 23FX54    304  C~7xZo      
2023 04  22.18253  10 58 58.879  +08 12 13.77  22.8r 23FX54    304  C~7xZo      
2023 05  15.11037  10 58 15.391  +08 15 49.30  22.9r 23FX54    304  C~7xZo      
2023 05  16.09146  10 58 14.459  +08 15 52.66  22.9r 23FX54    304  C~7xZo      
2024 03  07.27688  11 06 53.856  +07 22 47.84  22.7r 23FX54    304  C~7xZo      
2024 03  08.27201  11 06 49.374  +07 23 15.40  22.8r 23FX54    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     0.04       0.00    -0.06
     2   0.0006    -14.39    -0.03      -0.34    -0.13
     3   0.0871  -1849.04     0.19     -43.89    -0.00
     4   0.0872  -1850.43    -0.19     -43.74     0.20
     5   0.1500  -2529.40     0.07     -92.26    -0.01
     6   0.1526  -2543.47    -0.07     -94.46     0.03
     7   0.9636   5807.74    -0.10     -56.12     0.07
     8   0.9663   5735.54     0.10     -56.58    -0.09

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.

23FX54    quality flag:2

Type:      CLASSICAL CLASSICAL    7:4EEE

axisobj        44.179    46.017    43.614
ecceobj         0.051     0.166     0.064
incobj          1.718     1.716     1.720
qmin           40.918    37.514    40.061
qmax           47.790    54.962    47.724
amean          44.219    46.009    43.726
amin           43.868    45.599    43.359
amax           44.585    46.499    44.128
emean           0.056     0.168     0.070
emin            0.040     0.155     0.058
emax            0.072     0.183     0.081
imean           1.329     1.230     1.176
imin            0.567     0.428     0.310
imax            1.845     1.820     1.800
excite_mean     0.061     0.169     0.073
fracstop        1.000     1.000     1.000
cjmean          3.100     3.090     3.092

libcent 0      -180.0    -180.0     182.3
libamp  0      -180.0    -180.0     146.9
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       153.9     179.7     197.0
kozaiamp        180.0     180.0     180.0