Orbit Fit and Astrometric record for 612795

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: 612795    
# Created Wed Dec 25 02:07:42 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     29 observations of     29
# Arc:  20.22y
# First observation: 2004/08/14
#  Last observation: 2024/11/01
# Chi-squared of fit:    34.45 DOF:     52 RMS:  0.19
# Min/Max residuals:    -0.77    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.401703E-05  2.407674E-02 -2.875346E-07 -4.358133E-04  2.434494E-02  1.498530E-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
   -0.514619  -17.293088    0.361913   -0.008430   -0.950376  2453231.798423
# Heliocentric elements and errors
Epoch:              2453232.5000  =  2004/08/15
Mean Anomaly:          356.52088 +/-     0.000
Argument of Peri:      209.52013 +/-     0.000
Long of Asc Node:      136.44304 +/-     0.000
Inclination:             1.15690 +/-     0.000
Eccentricity:         0.03607077 +/-    0.0000
Semi-Major Axis:     43.59323842 +/-    0.0000
Time of Perihelion: 2454248.5011 +/-       0.0
Perihelion:          42.02079673 +/-    0.0000
Aphelion:            45.16568011 +/-    0.0000
Period (y)              287.8306 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.01386252 +/-    0.0000
Ecliptic Y          -12.83606285 +/-    0.0000
Ecliptic Z           -0.36896177 +/-    0.0000
Ecliptic XDOT         0.00081862 +/-    0.0000
Ecliptic YDOT         0.00257341 +/-    0.0000
Ecliptic ZDOT        -0.00004905 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.02392126 +/-    0.0000
Geocenter to KBO     41.07633228 +/-    0.0000
# Hcoef:  6.78

The following table shows the complete astrometric record for 612795. 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 (612795) followed by the observatory code and reference code for the source of the astrometry.

2004 08  14.29768  22 57 01.64   -07 15 58.2   21.5R 612795    807  Cl2777      
2004 08  14.40415  22 57 01.18   -07 16 00.9         612795    807  Cl2777      
2004 08  15.34845  22 56 57.26   -07 16 25.7         612795    807  Cl2777      
2004 09  13.23951  22 54 50.32   -07 29 36.7   22.6R 612795    304  Cl4404      
2004 09  13.28756  22 54 50.10   -07 29 38.0         612795    304  Cl4404      
2006 10  19.17414  23 02 50.72   -06 43 15.5   22.3R 612795    695  Ct0488      
2006 10  19.26624  23 02 50.42   -06 43 17.0         612795    695  Ct0488      
2006 10  20.16577  23 02 47.58   -06 43 34.6         612795    695  Ct0488      
2014 08  18.28289  23 48 04.500  -02 06 22.68  22.7z 612795    W84  C~52FZ      
2016 08  15.25732  23 58 21.295  -01 02 15.93  22.3z 612795    W84  C~52FZ      
2016 10  06.05316  23 54 46.241  -01 25 57.03  22.9z 612795    W84  C~52FZ      
2016 10  07.05381  23 54 41.984  -01 26 24.24  22.3i 612795    W84  C~52FZ      
2016 10  07.08247  23 54 41.868  -01 26 25.22  24.1g 612795    W84  C~52FZ      
2016 10  09.14158  23 54 33.197  -01 27 21.24  23.3r 612795    W84  C~52FZ      
2017 07  30.48504  00 04 09.17   -00 25 34.4   23.6r 612795    T09  C~7dBy      
2017 07  30.52658  00 04 09.09   -00 25 35.2   23.3r 612795    T09  C~7dBy      
2017 07  30.59058  00 04 08.92   -00 25 36.4   23.3r 612795    T09  C~7dBy      
2017 08  01.52690  00 04 04.42   -00 26 08.0   22.5y 612795    T09  C~8DTL      
2017 08  01.57854  00 04 04.30   -00 26 08.5   22.0y 612795    T09  C~8DTL      
2017 08  01.60565  00 04 04.26   -00 26 09.0   22.3y 612795    T09  C~8DTL      
2017 08  18.30775  00 03 15.210  -00 31 46.33  22.6i 612795    W84  C~52FZ      
2017 08  18.30913  00 03 15.202  -00 31 46.27  23.8g 612795    W84  C~52FZ      
2017 09  18.22502  00 01 10.366  -00 45 37.66  24.0g 612795    W84  C~52FZ      
2017 10  17.18644  23 59 05.787  -00 59 07.15  23.5r 612795    W84  C~52FZ      
2017 11  10.04642  23 57 45.423  -01 07 35.98  23.5r 612795    W84  C~52FZ      
2017 11  15.03651  23 57 33.099  -01 08 51.77  22.8i 612795    W84  C~52FZ      
2024 11  01.126490 00 33 39.002  +02 36 12.86  23.1G 612795    G37  C~8WIF      
2024 11  01.172880 00 33 38.834  +02 36 11.91        612795    G37  C~8WIF      
2024 11  01.222130 00 33 38.639  +02 36 10.72        612795    G37  C~8WIF      

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     0.31       0.00     0.13
     2   0.0003      0.00     0.08       0.00     0.18
     3   0.0029      0.00    -0.25       0.00    -0.05
     4   0.0820      0.00     0.09       0.00     0.15
     5   0.0821      0.00     0.03       0.00     0.16
     6   2.1790      0.00     0.22       0.00    -0.12
     7   2.1792      0.00     0.14       0.00     0.14
     8   2.1817      0.00    -0.77       0.00    -0.45
     9  10.0095      0.00     0.04       0.00    -0.00
    10  12.0026      0.00     0.17       0.00     0.05
    11  12.1444      0.00     0.10       0.00    -0.25
    12  12.1472      0.00     0.04       0.00     0.03
    13  12.1473      0.00     0.15       0.00    -0.16
    14  12.1529      0.00     0.16       0.00    -0.22
    15  12.9588      0.00    -0.12       0.00     0.23
    16  12.9589      0.00     0.13       0.00     0.09
    17  12.9590      0.00    -0.18       0.00    -0.09
    18  12.9644      0.00    -0.33       0.00    -0.09
    19  12.9645      0.00    -0.21       0.00     0.28
    20  12.9646      0.00     0.20       0.00     0.23
    21  13.0103      0.00     0.00       0.00    -0.15
    22  13.0103      0.00    -0.05       0.00    -0.06
    23  13.0949      0.00    -0.07       0.00     0.17
    24  13.1742      0.00     0.08       0.00    -0.05
    25  13.2396      0.00     0.20       0.00    -0.25
    26  13.2532      0.00     0.14       0.00    -0.09
    27  20.2158      0.00    -0.11       0.00     0.02
    28  20.2159      0.00     0.02       0.00     0.15
    29  20.2161      0.00    -0.09       0.00     0.11

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.

612795    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.033    44.033    44.033
ecceobj         0.046     0.046     0.046
incobj          1.154     1.154     1.154
qmin           41.141    41.134    41.147
qmax           46.790    46.780    46.795
amean          43.851    43.851    43.851
amin           43.515    43.515    43.516
amax           44.212    44.212    44.212
emean           0.042     0.042     0.042
emin            0.026     0.026     0.026
emax            0.058     0.058     0.058
imean           1.485     1.485     1.485
imin            0.774     0.774     0.774
imax            2.107     2.106     2.107
excite_mean     0.050     0.050     0.050
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       186.5     186.6     186.5
kozaiamp        180.0     180.0     180.0