Orbit Fit and Astrometric record for 577578

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: 577578    
# Created Sat Nov 27 02:08:16 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     46 observations of     46
# Arc:   8.31y
# First observation: 2013/03/07
#  Last observation: 2021/06/30
# Chi-squared of fit:    27.32 DOF:     86 RMS:  0.14
# Min/Max residuals:    -0.30    0.53
# Exact a, adot, b, bdot, g, gdot:
  1.924849E-05  3.801354E-02  2.120909E-06  4.423834E-03  3.086676E-02 -5.286100E-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
   -0.163943 -140.699587    0.783951   -0.001709   -0.609198  2456359.103668
# Heliocentric elements and errors
Epoch:              2456358.5000  =  2013/03/07
Mean Anomaly:          342.36215 +/-     0.000
Argument of Peri:       35.52235 +/-     0.000
Long of Asc Node:      219.31272 +/-     0.000
Inclination:             6.67133 +/-     0.000
Eccentricity:         0.34164427 +/-    0.0000
Semi-Major Axis:     47.58676791 +/-    0.0000
Time of Perihelion: 2462232.9987 +/-       0.0
Perihelion:          31.32902146 +/-    0.0000
Aphelion:            63.84451435 +/-    0.0000
Period (y)              328.2748 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -26.03678328 +/-    0.0000
Ecliptic Y          -20.29710514 +/-    0.0000
Ecliptic Z           -0.09261468 +/-    0.0000
Ecliptic XDOT         0.00249133 +/-    0.0000
Ecliptic YDOT        -0.00231224 +/-    0.0000
Ecliptic ZDOT         0.00039387 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.01366134 +/-    0.0000
Geocenter to KBO     32.39742106 +/-    0.0000
# Hcoef:  7.39

The following table shows the complete astrometric record for 577578. 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 (577578) followed by the observatory code and reference code for the source of the astrometry.

2013 03  07.60289  14 27 24.291  -14 44 53.37  22.3r 577578    568  C~1XRW      
2013 04  04.54664  14 25 30.072  -14 34 26.45  22.7r 577578    568  C~1XRW      
2013 04  07.40716  14 25 15.362  -14 33 06.85  22.7r 577578    568  C~1XRW      
2013 04  07.45089  14 25 15.127  -14 33 05.69  22.6r 577578    568  C~1XRW      
2013 04  08.43954  14 25 09.938  -14 32 37.75  22.4r 577578    568  C~1XRW      
2013 04  08.48474  14 25 09.710  -14 32 36.50  22.4r 577578    568  C~1XRW      
2013 04  09.38613  14 25 04.945  -14 32 10.69  22.7r 577578    568  C~1XRW      
2013 04  09.42936  14 25 04.721  -14 32 09.49  22.6r 577578    568  C~1XRW      
2013 04  09.47254  14 25 04.488  -14 32 08.30  22.8r 577578    568  C~1XRW      
2013 05  11.47420  14 22 05.092  -14 15 56.26  22.6r 577578    568  C~1XRW      
2013 06  12.37153  14 19 34.135  -14 01 53.33        577578    568  C~1XRW      
2013 06  12.41652  14 19 33.968  -14 01 52.43  22.8r 577578    568  C~1XRW      
2013 08  02.26651  14 18 41.651  -13 55 08.18  23.0r 577578    568  C~1XRW      
2013 08  05.26716  14 18 47.622  -13 55 30.05  23.0r 577578    568  C~1XRW      
2014 02  01.63271  14 36 43.724  -15 14 56.90  22.8r 577578    568  C~1XRW      
2014 02  02.63050  14 36 45.063  -15 15 00.36  22.9r 577578    568  C~1XRW      
2014 02  03.57515  14 36 46.213  -15 15 03.16  22.9r 577578    568  C~1XRW      
2014 02  25.59980  14 36 41.873  -15 13 41.83  23.0r 577578    568  C~1XRW      
2014 04  04.45085  14 34 32.009  -15 01 43.73  22.6r 577578    568  C~1XRW      
2014 04  04.49069  14 34 31.806  -15 01 42.70  22.8r 577578    568  C~1XRW      
2014 04  05.57974  14 34 26.343  -15 01 13.82  22.8r 577578    568  C~1XRW      
2014 05  22.42509  14 30 06.242  -14 38 23.46  22.7r 577578    568  C~1XRW      
2014 05  25.35772  14 29 51.028  -14 37 02.39  22.5r 577578    568  C~1XRW      
2014 06  26.34615  14 27 43.560  -14 25 24.60  22.8r 577578    568  C~1XRW      
2014 07  18.30910  14 27 12.350  -14 22 00.89  22.8r 577578    568  C~1XRW      
2014 07  18.31323  14 27 12.350  -14 22 00.87  22.9r 577578    568  C~1XRW      
2015 01  26.61229  14 45 25.555  -15 39 25.86  22.9r 577578    568  C~1XRW      
2015 04  18.40695  14 42 29.148  -15 21 41.54  22.6r 577578    568  C~2KOF      
2015 04  20.42535  14 42 17.865  -15 20 44.02  22.4r 577578    568  C~2KOF      
2015 04  20.43040  14 42 17.866  -15 20 43.92  24.6u 577578    568  C~2KOF      
2015 04  20.46573  14 42 17.630  -15 20 42.88  22.5r 577578    568  C~2KOF      
2018 04  11.37739  15 11 24.889  -16 36 25.10  22.3r 577578    G83  C~4tyt      
2018 04  11.38577  15 11 24.855  -16 36 24.90  22.2r 577578    G83  C~4tyt      
2020 04  02.22797  15 31 31.74   -17 19 55.2   21.4G 577578    X01  C~3xqi      
2020 04  02.27395  15 31 31.51   -17 19 54.3   21.5G 577578    X01  C~3xqi      
2020 04  22.19109  15 29 55.99   -17 12 43.5   21.6G 577578    X01  C~3xqi      
2020 04  22.27133  15 29 55.58   -17 12 40.8   21.7G 577578    X01  C~3xqi      
2020 05  19.20526  15 27 16.65   -17 01 39.6         577578    G37  C~3zkX      
2020 05  19.26321  15 27 16.30   -17 01 38.2         577578    G37  C~3zkX      
2020 05  19.36515  15 27 15.67   -17 01 35.7         577578    G37  C~3zkX      
2021 06  14.272360 15 34 42.138  -17 10 51.20  22.2w 577578    F51  C~4qJv      
2021 06  14.294794 15 34 42.015  -17 10 51.13  22.1w 577578    F51  C~4qJv      
2021 06  14.306014 15 34 41.934  -17 10 50.80  22.4w 577578    F51  C~4qJv      
2021 06  30.308932 15 33 27.588  -17 06 25.79  22.6w 577578    F51  C~4qJv      
2021 06  30.320295 15 33 27.546  -17 06 25.58  22.4w 577578    F51  C~4qJv      
2021 06  30.343027 15 33 27.454  -17 06 25.14  22.3w 577578    F51  C~4qJv      

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   0.0765      0.00     0.07       0.00     0.02
     3   0.0843      0.00     0.03       0.00     0.05
     4   0.0845      0.00    -0.00       0.00    -0.02
     5   0.0872      0.00    -0.11       0.00    -0.07
     6   0.0873      0.00     0.11       0.00    -0.10
     7   0.0898      0.00    -0.04       0.00    -0.03
     8   0.0899      0.00     0.11       0.00    -0.06
     9   0.0900      0.00     0.12       0.00    -0.11
    10   0.1776      0.00    -0.03       0.00     0.02
    11   0.2649      0.00    -0.06       0.00     0.08
    12   0.2651      0.00    -0.05       0.00     0.03
    13   0.4043      0.00    -0.01       0.00     0.02
    14   0.4125      0.00     0.03       0.00     0.07
    15   0.9063      0.00    -0.11       0.00    -0.02
    16   0.9090      0.00    -0.07       0.00     0.06
    17   0.9116      0.00    -0.15       0.00     0.06
    18   0.9719      0.00    -0.04       0.00     0.04
    19   1.0756      0.00    -0.07       0.00    -0.02
    20   1.0757      0.00    -0.08       0.00    -0.04
    21   1.0786      0.00    -0.06       0.00    -0.03
    22   1.2069      0.00     0.11       0.00    -0.02
    23   1.2149      0.00     0.07       0.00     0.02
    24   1.3025      0.00     0.01       0.00    -0.03
    25   1.3626      0.00     0.02       0.00    -0.11
    26   1.3627      0.00     0.04       0.00    -0.10
    27   1.8891      0.00     0.07       0.00    -0.02
    28   2.1131      0.00    -0.09       0.00     0.04
    29   2.1186      0.00    -0.10       0.00     0.00
    30   2.1186      0.00     0.35       0.00    -0.04
    31   2.1187      0.00    -0.16       0.00    -0.01
    32   5.0945      0.00    -0.10       0.00     0.21
    33   5.0945      0.00     0.03       0.00     0.21
    34   7.0708      0.00     0.45       0.00     0.18
    35   7.0710      0.00    -0.17       0.00     0.21
    36   7.1255      0.00    -0.08       0.00    -0.27
    37   7.1257      0.00     0.48       0.00     0.53
    38   7.1995      0.00    -0.10       0.00    -0.03
    39   7.1996      0.00    -0.01       0.00    -0.04
    40   7.1999      0.00    -0.06       0.00    -0.04
    41   8.2701      0.00     0.07       0.00     0.09
    42   8.2702      0.00     0.02       0.00    -0.26
    43   8.2702      0.00    -0.30       0.00    -0.15
    44   8.3140      0.00    -0.12       0.00    -0.19
    45   8.3141      0.00    -0.05       0.00    -0.14
    46   8.3141      0.00    -0.03       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.

577578    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        47.383    47.383    47.383
ecceobj         0.340     0.340     0.340
incobj          6.679     6.679     6.679
qmin           30.611    30.611    30.611
qmax           65.880    65.878    65.882
amean          47.797    47.797    47.797
amin           47.169    47.169    47.169
amax           48.563    48.564    48.563
emean           0.318     0.318     0.318
emin            0.274     0.274     0.274
emax            0.359     0.359     0.359
imean          10.750    10.745    10.751
imin            7.246     7.246     7.246
imax           13.702    13.693    13.703
excite_mean     0.371     0.371     0.371
fracstop        1.000     1.000     1.000
cjmean          2.974     2.974     2.974

libcent 0       281.4     281.3     281.4
libamp  0        42.4      42.6      42.4
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        61.3      62.9      61.5
kozaiamp        180.0     180.0     180.0