Orbit Fit and Astrometric record for 594994

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: 594994    
# Created Sun Dec 22 02:07:40 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     38 observations of     38
# Arc:  21.11y
# First observation: 2000/08/25
#  Last observation: 2021/10/03
# Chi-squared of fit:    22.05 DOF:     70 RMS:  0.13
# Min/Max residuals:    -0.32    0.84
# Exact a, adot, b, bdot, g, gdot:
  1.375150E-05  2.029696E-02 -7.226852E-07 -2.229751E-04  2.317868E-02  3.606375E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.497627   -8.575759    0.334891    0.024687   -0.950214  2451781.794373
# Heliocentric elements and errors
Epoch:              2451782.5000  =  2000/08/26
Mean Anomaly:          115.69093 +/-     0.000
Argument of Peri:      338.41224 +/-     0.000
Long of Asc Node:      238.64478 +/-     0.000
Inclination:             1.58403 +/-     0.000
Eccentricity:         0.19909427 +/-    0.0000
Semi-Major Axis:     39.57669073 +/-    0.0000
Time of Perihelion: 2422557.5039 +/-       0.0
Perihelion:          31.69719826 +/-    0.0000
Aphelion:            47.45618320 +/-    0.0000
Period (y)              248.9817 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.54184992 +/-    0.0000
Ecliptic Y           -6.89915280 +/-    0.0000
Ecliptic Z            1.12751668 +/-    0.0000
Ecliptic XDOT         0.00077198 +/-    0.0000
Ecliptic YDOT         0.00231238 +/-    0.0000
Ecliptic ZDOT        -0.00001504 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.09935976 +/-    0.0000
Geocenter to KBO     43.14302406 +/-    0.0000
# Hcoef:  7.11

The following table shows the complete astrometric record for 594994. 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 (594994) followed by the observatory code and reference code for the source of the astrometry.

2000 08  25.29363  23 26 07.73   -02 01 26.0   23.1R 594994    807  Cc1045      
2000 08  26.28602  23 26 03.68   -02 01 51.5         594994    807  Cc1045      
2000 08  26.35777  23 26 03.39   -02 01 53.2         594994    807  Cc1045      
2003 10  22.16381  23 35 02.31   -01 07 03.8   22.8R 594994    695  C~2lRJ      
2003 10  22.24392  23 35 01.97   -01 07 05.9         594994    695  C~2lRJ      
2015 07  14.59595  00 29 04.875  +04 29 35.47  23.8r 594994    568  C~2lRJ      
2015 07  19.57506  00 29 01.507  +04 29 21.50  23.7r 594994    568  C~2lRJ      
2015 08  11.48002  00 28 22.649  +04 25 43.41  23.8r 594994    568  C~2lRJ      
2015 08  11.52446  00 28 22.535  +04 25 42.53  23.8r 594994    568  C~2lRJ      
2015 09  08.38855  00 26 52.757  +04 16 29.44  23.7r 594994    568  C~2lRJ      
2015 09  08.49278  00 26 52.343  +04 16 26.97  23.7r 594994    568  C~2lRJ      
2015 09  08.53500  00 26 52.181  +04 16 25.94  23.8r 594994    568  C~2lRJ      
2015 09  09.51188  00 26 48.420  +04 16 02.26  23.9w 594994    568  C~2lRJ      
2015 09  10.45287  00 26 44.778  +04 15 39.20  23.9w 594994    568  C~2lRJ      
2015 09  16.43732  00 26 21.036  +04 13 08.47  23.9w 594994    568  C~2lRJ      
2015 10  03.36404  00 25 10.941  +04 05 36.55  23.9w 594994    568  C~2lRJ      
2015 11  10.35840  00 22 48.830  +03 49 46.30  23.9w 594994    568  C~2lRJ      
2016 01  01.23433  00 21 51.460  +03 42 00.02  24.0w 594994    568  C~2lRJ      
2016 09  05.47023  00 30 57.688  +04 41 27.24  23.9w 594994    568  C~2lRJ      
2016 09  06.42437  00 30 54.132  +04 41 04.84  24.0w 594994    568  C~2lRJ      
2016 09  06.46487  00 30 53.976  +04 41 03.91  24.1w 594994    568  C~2lRJ      
2016 09  25.31706  00 29 38.702  +04 33 05.68  23.7w 594994    568  C~2lRJ      
2016 09  25.34339  00 29 38.595  +04 33 04.96  23.9w 594994    568  C~2lRJ      
2016 09  25.44037  00 29 38.178  +04 33 02.49  23.9w 594994    568  C~2lRJ      
2016 09  26.42319  00 29 34.082  +04 32 36.09  24.0w 594994    568  C~2lRJ      
2016 10  30.34865  00 27 18.676  +04 17 45.16  23.9w 594994    568  C~2lRJ      
2016 11  03.30427  00 27 05.048  +04 16 12.80  23.9w 594994    568  C~2lRJ      
2016 11  03.35669  00 27 04.867  +04 16 11.67  24.0w 594994    568  C~2lRJ      
2016 12  24.27431  00 25 39.121  +04 05 31.78  24.1w 594994    568  C~2lRJ      
2017 01  02.26396  00 25 45.077  +04 05 52.16  24.1w 594994    568  C~2lRJ      
2017 01  29.22410  00 26 41.872  +04 11 07.54  24.0w 594994    568  C~2lRJ      
2017 09  15.44482  00 34 16.342  +05 01 27.46  24.0w 594994    568  C~2lRJ      
2017 09  22.50999  00 33 47.731  +04 58 25.94  23.9w 594994    568  C~2lRJ      
2017 11  22.34219  00 30 06.469  +04 33 57.51  23.6w 594994    568  C~2lRJ      
2017 11  22.36828  00 30 06.398  +04 33 57.09  24.0w 594994    568  C~2lRJ      
2021 10  03.279620 00 48 45.054  +06 28 04.22  23.8G 594994    G37  C~552k      
2021 10  03.316370 00 48 44.895  +06 28 03.19        594994    G37  C~552k      
2021 10  03.353100 00 48 44.737  +06 28 02.06        594994    G37  C~552k      

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    -0.03       0.00     0.12
     2   0.0027      0.00    -0.32       0.00    -0.09
     3   0.0029      0.00    -0.21       0.00     0.05
     4   3.1564      0.00     0.84       0.00     0.19
     5   3.1566      0.00    -0.15       0.00    -0.06
     6  14.8838      0.00     0.06       0.00    -0.02
     7  14.8974      0.00     0.04       0.00    -0.02
     8  14.9601      0.00    -0.04       0.00    -0.02
     9  14.9602      0.00    -0.05       0.00    -0.24
    10  15.0365      0.00     0.17       0.00    -0.09
    11  15.0368      0.00     0.05       0.00    -0.05
    12  15.0369      0.00     0.10       0.00    -0.06
    13  15.0396      0.00    -0.00       0.00    -0.04
    14  15.0422      0.00    -0.01       0.00    -0.07
    15  15.0586      0.00     0.01       0.00    -0.05
    16  15.1049      0.00     0.05       0.00    -0.11
    17  15.2089      0.00     0.06       0.00    -0.03
    18  15.3510      0.00    -0.00       0.00    -0.05
    19  16.0306      0.00     0.02       0.00     0.06
    20  16.0332      0.00     0.02       0.00    -0.04
    21  16.0333      0.00     0.01       0.00    -0.02
    22  16.0849      0.00     0.08       0.00    -0.02
    23  16.0850      0.00     0.14       0.00    -0.04
    24  16.0853      0.00     0.04       0.00     0.08
    25  16.0880      0.00    -0.04       0.00     0.01
    26  16.1808      0.00     0.00       0.00    -0.02
    27  16.1917      0.00    -0.04       0.00    -0.04
    28  16.1918      0.00    -0.06       0.00     0.02
    29  16.3312      0.00    -0.14       0.00    -0.03
    30  16.3558      0.00    -0.05       0.00    -0.02
    31  16.4297      0.00    -0.02       0.00     0.18
    32  17.0572      0.00    -0.03       0.00     0.06
    33  17.0766      0.00    -0.11       0.00     0.05
    34  17.2431      0.00    -0.08       0.00     0.09
    35  17.2432      0.00    -0.21       0.00     0.10
    36  21.1061      0.00     0.09       0.00     0.21
    37  21.1062      0.00     0.04       0.00     0.14
    38  21.1063      0.00     0.00       0.00    -0.02

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.

594994    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.644    39.644    39.644
ecceobj         0.198     0.198     0.198
incobj          1.585     1.585     1.585
qmin           30.466    30.466    30.465
qmax           48.926    48.921    48.927
amean          39.455    39.455    39.455
amin           39.097    39.096    39.098
amax           39.887    39.885    39.887
emean           0.210     0.210     0.210
emin            0.193     0.193     0.193
emax            0.227     0.227     0.227
imean           2.960     2.960     2.960
imin            2.506     2.506     2.507
imax            3.672     3.672     3.673
excite_mean     0.216     0.216     0.216
fracstop        1.000     1.000     1.000
cjmean          2.998     2.998     2.998

libcent 0       180.1     180.1     180.7
libamp  0        37.1      37.6      37.7
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       180.4     180.4     180.4
kozaiamp        179.9     180.0     180.0