Orbit Fit and Astrometric record for 612582

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: 612582    
# Created Fri Oct  7 01:09:05 2022
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     37 observations of     37
# Arc:  15.15y
# First observation: 2003/08/25
#  Last observation: 2018/10/18
# Chi-squared of fit:    28.66 DOF:     68 RMS:  0.16
# Min/Max residuals:    -0.60    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.465259E-05  2.385746E-02 -8.305341E-07 -2.019687E-04  2.429206E-02  7.973394E-04
# 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
   -2.968394   -3.582584    0.427292   -0.047627   -0.919599  2452876.779843
# Heliocentric elements and errors
Epoch:              2452876.5000  =  2003/08/25
Mean Anomaly:           39.87810 +/-     0.000
Argument of Peri:      217.50602 +/-     0.000
Long of Asc Node:       95.97882 +/-     0.000
Inclination:             2.94959 +/-     0.000
Eccentricity:         0.03283033 +/-    0.0000
Semi-Major Axis:     43.15173325 +/-    0.0000
Time of Perihelion: 2441407.4417 +/-       0.0
Perihelion:          41.73504755 +/-    0.0000
Aphelion:            44.56841895 +/-    0.0000
Period (y)              283.4690 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.91968996 +/-    0.0000
Ecliptic Y           -3.04865157 +/-    0.0000
Ecliptic Z           -2.13182214 +/-    0.0000
Ecliptic XDOT         0.00025116 +/-    0.0000
Ecliptic YDOT         0.00267236 +/-    0.0000
Ecliptic ZDOT        -0.00002721 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.08441744 +/-    0.0000
Geocenter to KBO     41.16572761 +/-    0.0000
# Hcoef:  7.01

The following table shows the complete astrometric record for 612582. 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 (612582) followed by the observatory code and reference code for the source of the astrometry.

2003 08  25.27910  23 51 34.52   -04 08 53.1   22.2R 612582    807  Ci4592      
2003 08  25.38190  23 51 34.12   -04 08 56.1         612582    807  Ci4592      
2003 09  03.13413  23 50 58.52   -04 13 02.3   23.0R 612582    304  Ci4592      
2003 09  03.20601  23 50 58.25   -04 13 04.0         612582    304  Ci4592      
2003 10  22.15921  23 47 30.57   -04 35 00.5   22.5R 612582    695  Cj4700      
2003 10  22.25323  23 47 30.23   -04 35 02.5         612582    695  Cj4700      
2004 08  13.30947  23 57 16.35   -03 32 05.9   21.5R 612582    807  Cl8405      
2004 08  13.38192  23 57 16.10   -03 32 07.5         612582    807  Cl8405      
2004 10  11.21987  23 53 12.16   -03 59 13.1   23.0R 612582    695  Cl8405      
2004 10  11.31032  23 53 11.82   -03 59 15.6         612582    695  Cl8405      
2010 09  16.42927  00 25 07.34   -00 34 16.9   23.5R 612582    688  C~0NG0      
2010 09  16.47315  00 25 07.12   -00 34 18.0         612582    688  C~0NG0      
2013 10  05.32455  00 38 40.97   +00 53 16.1   22.8R 612582    695  C~0zdV      
2013 10  05.36866  00 38 40.77   +00 53 15.1         612582    695  C~0zdV      
2013 10  06.36532  00 38 36.35   +00 52 47.4         612582    695  C~0zdV      
2013 10  13.15009  00 38 06.427  +00 49 40.60  22.7i 612582    W84  C~4yD2      
2013 11  23.12179  00 35 38.374  +00 35 37.72  23.4r 612582    W84  C~4yD2      
2013 11  23.12459  00 35 38.361  +00 35 37.84  23.1i 612582    W84  C~4yD2      
2014 11  13.07078  00 41 03.491  +01 09 57.86  24.0r 612582    W84  C~4yD2      
2014 11  14.13129  00 41 00.075  +01 09 39.75  23.0i 612582    W84  C~4yD2      
2016 09  01.37155  00 55 51.011  +02 44 12.46  23.1i 612582    W84  C~4yD2      
2016 09  01.37293  00 55 51.011  +02 44 12.15  23.1r 612582    W84  C~4yD2      
2016 11  05.19246  00 51 20.938  +02 15 50.25  23.4r 612582    W84  C~4yD2      
2016 11  05.19523  00 51 20.933  +02 15 49.98  24.8g 612582    W84  C~4yD2      
2016 11  06.15830  00 51 17.323  +02 15 29.85  22.4z 612582    W84  C~4yD2      
2017 08  28.28539  01 01 00.570  +03 17 21.87  22.8i 612582    W84  C~4yD2      
2017 08  28.28676  01 01 00.569  +03 17 22.02  23.4r 612582    W84  C~4yD2      
2017 09  18.29705  00 59 43.521  +03 08 35.11  23.9r 612582    W84  C~4yD2      
2017 09  24.28844  00 59 18.296  +03 05 50.54  23.0i 612582    W84  C~4yD2      
2017 09  27.23772  00 59 05.545  +03 04 28.50  22.8z 612582    W84  C~4yD2      
2017 10  28.16086  00 56 49.86   +02 50 37.1         612582    G37  C~3cWO      
2017 10  28.20697  00 56 49.69   +02 50 36.1         612582    G37  C~3cWO      
2017 10  28.29590  00 56 49.29   +02 50 33.9         612582    G37  C~3cWO      
2018 09  14.33468  01 04 56.663  +03 41 55.76  23.0i 612582    W84  C~4yD2      
2018 09  14.33605  01 04 56.647  +03 41 56.07  24.2g 612582    W84  C~4yD2      
2018 09  21.28671  01 04 28.529  +03 38 51.07  23.0z 612582    W84  C~4yD2      
2018 10  18.20031  01 02 30.287  +03 26 31.72  23.0z 612582    W84  C~4yD2      

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     0.11       0.00     0.20
     2   0.0003      0.00     0.23       0.00     0.02
     3   0.0242      0.00    -0.60       0.00    -0.10
     4   0.0244      0.00    -0.04       0.00     0.27
     5   0.1585      0.00     0.00       0.00    -0.02
     6   0.1587      0.00     0.14       0.00    -0.05
     7   0.9693      0.00     0.03       0.00    -0.08
     8   0.9695      0.00    -0.07       0.00     0.08
     9   1.1306      0.00    -0.18       0.00     0.04
    10   1.1308      0.00     0.40       0.00    -0.20
    11   7.0613      0.00     0.12       0.00    -0.04
    12   7.0614      0.00    -0.32       0.00     0.12
    13  10.1137      0.00     0.07       0.00    -0.30
    14  10.1139      0.00     0.06       0.00    -0.06
    15  10.1166      0.00     0.17       0.00     0.17
    16  10.1352      0.00     0.17       0.00    -0.23
    17  10.2473      0.00     0.15       0.00    -0.14
    18  10.2474      0.00     0.06       0.00     0.01
    19  11.2191      0.00    -0.02       0.00    -0.13
    20  11.2220      0.00    -0.14       0.00    -0.00
    21  13.0215      0.00    -0.07       0.00     0.17
    22  13.0215      0.00     0.01       0.00    -0.11
    23  13.1989      0.00    -0.08       0.00     0.08
    24  13.1989      0.00     0.00       0.00    -0.13
    25  13.2016      0.00     0.12       0.00     0.07
    26  14.0096      0.00     0.04       0.00     0.04
    27  14.0096      0.00     0.09       0.00     0.22
    28  14.0671      0.00     0.07       0.00    -0.05
    29  14.0835      0.00    -0.03       0.00    -0.01
    30  14.0916      0.00    -0.15       0.00     0.03
    31  14.1763      0.00    -0.20       0.00    -0.02
    32  14.1764      0.00     0.17       0.00     0.09
    33  14.1766      0.00    -0.19       0.00     0.04
    34  15.0556      0.00     0.04       0.00    -0.26
    35  15.0556      0.00    -0.12       0.00     0.09
    36  15.0746      0.00     0.13       0.00     0.27
    37  15.1483      0.00     0.01       0.00     0.01

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.

612582    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.602    43.602    43.602
ecceobj         0.041     0.041     0.041
incobj          2.950     2.950     2.950
qmin           41.006    41.001    41.006
qmax           45.949    45.948    45.948
amean          43.361    43.361    43.361
amin           43.029    43.029    43.030
amax           43.712    43.712    43.712
emean           0.035     0.035     0.035
emin            0.015     0.015     0.015
emax            0.051     0.051     0.051
imean           1.361     1.361     1.361
imin            0.414     0.414     0.414
imax            2.070     2.070     2.070
excite_mean     0.044     0.044     0.044
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       169.9     169.9     170.0
kozaiamp        180.0     180.0     180.0