Orbit Fit and Astrometric record for 576212

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: 576212    
# Created Tue Dec  7 02:08:16 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     69 observations of     69
# Arc:  22.22y
# First observation: 1999/03/21
#  Last observation: 2021/06/08
# Chi-squared of fit:    47.68 DOF:    132 RMS:  0.15
# Min/Max residuals:    -0.35    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.575312E-05  2.328813E-02 -2.916646E-06 -6.037480E-03  2.480391E-02  1.295829E-05
# 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
    8.329918 -160.635159    0.327695    0.137286   -0.939366  2451258.855900
# Heliocentric elements and errors
Epoch:              2451258.5000  =  1999/03/21
Mean Anomaly:          196.00581 +/-     0.000
Argument of Peri:      315.03128 +/-     0.000
Long of Asc Node:       47.58222 +/-     0.000
Inclination:            16.59969 +/-     0.000
Eccentricity:         0.02442970 +/-    0.0000
Semi-Major Axis:     40.30111174 +/-    0.0000
Time of Perihelion: 2493828.1360 +/-       0.0
Perihelion:          39.31656753 +/-    0.0000
Aphelion:            41.28565595 +/-    0.0000
Period (y)              255.8490 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.63000170 +/-    0.0000
Ecliptic Y          -13.23292962 +/-    0.0000
Ecliptic Z            5.84063969 +/-    0.0000
Ecliptic XDOT         0.00075777 +/-    0.0000
Ecliptic YDOT        -0.00244873 +/-    0.0000
Ecliptic ZDOT        -0.00065916 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.24925288 +/-    0.0000
Geocenter to KBO     40.31624816 +/-    0.0000
# Hcoef:  6.50

The following table shows the complete astrometric record for 576212. 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 (576212) followed by the observatory code and reference code for the source of the astrometry.

1999 03  21.355157 13 24 04.00   +00 08 17.9   22.4V 576212    645  C~2VVJ      
1999 03  21.355986 13 24 04.01   +00 08 18.0   22.1V 576212    645  C~2VVJ      
1999 03  21.358474 13 24 04.00   +00 08 18.4   23.2V 576212    645  C~2VVJ      
2000 04  06.340535 13 27 13.26   -00 33 31.5   22.5V 576212    645  C~2VVJ      
2000 04  06.341364 13 27 13.26   -00 33 31.6   22.2V 576212    645  C~2VVJ      
2000 04  06.343852 13 27 13.26   -00 33 31.5   23.5V 576212    645  C~2VVJ      
2000 04  25.252105 13 25 44.64   -00 26 08.6   22.4V 576212    645  C~2VVJ      
2000 04  25.252934 13 25 44.64   -00 26 08.5   22.0V 576212    645  C~2VVJ      
2000 04  25.255422 13 25 44.64   -00 26 08.5   23.8V 576212    645  C~2VVJ      
2006 05  25.199169 13 50 19.36   -05 13 10.4   22.3V 576212    645  C~2VVJ      
2006 05  25.199998 13 50 19.35   -05 13 10.5   21.7V 576212    645  C~2VVJ      
2006 05  25.202486 13 50 19.36   -05 13 10.4   23.7V 576212    645  C~2VVJ      
2011 04  27.38629  14 15 01.161  -09 24 56.54  22.7w 576212    F51  C~1w3q      
2011 04  27.43036  14 15 00.938  -09 24 55.71  22.3w 576212    F51  C~1w3q      
2012 04  27.43132  14 19 32.237  -10 12 50.16  22.7w 576212    F51  C~1w3q      
2012 04  27.44629  14 19 32.165  -10 12 49.88  22.9w 576212    F51  C~1w3q      
2012 04  27.46128  14 19 32.082  -10 12 49.24  22.5w 576212    F51  C~1w3q      
2012 04  27.47627  14 19 32.016  -10 12 49.28  22.4w 576212    F51  C~1w3q      
2012 05  21.35214  14 17 39.796  -10 05 19.35  22.5w 576212    F51  C~1w3q      
2012 05  21.36665  14 17 39.739  -10 05 19.16  23.0w 576212    F51  C~1w3q      
2012 05  21.38115  14 17 39.674  -10 05 19.12  22.8w 576212    F51  C~1w3q      
2012 05  21.39568  14 17 39.604  -10 05 18.76  22.6w 576212    F51  C~1w3q      
2013 01  17.62987  14 27 59.693  -11 19 00.84  22.8w 576212    F51  C~1w3q      
2013 01  17.63527  14 27 59.700  -11 19 00.97  22.7w 576212    F51  C~1w3q      
2013 05  09.40174  14 23 11.944  -10 56 55.57  22.3w 576212    F51  C~1w3q      
2013 05  09.41572  14 23 11.889  -10 56 55.63  22.7w 576212    F51  C~1w3q      
2013 05  09.42969  14 23 11.825  -10 56 55.09  22.4w 576212    F51  C~1w3q      
2013 05  09.44367  14 23 11.740  -10 56 54.77  22.3w 576212    F51  C~1w3q      
2014 03  27.54407  14 31 10.520  -11 58 48.49  22.4w 576212    F51  C~1w3q      
2014 04  05.52518  14 30 33.039  -11 56 02.90  22.6w 576212    F51  C~1w3q      
2014 04  05.53575  14 30 32.980  -11 56 02.29  22.7w 576212    F51  C~1w3q      
2014 04  05.55687  14 30 32.894  -11 56 02.23  22.6w 576212    F51  C~1w3q      
2014 04  23.41183  14 29 09.524  -11 50 05.61  22.6w 576212    F51  C~1w3q      
2014 05  21.33638  14 26 55.345  -11 41 13.80  22.4G 576212    F51  C~2rXt      
2014 05  21.34988  14 26 55.305  -11 41 13.45  22.5G 576212    F51  C~2rXt      
2014 05  21.36336  14 26 55.243  -11 41 13.06  22.6G 576212    F51  C~2rXt      
2014 05  21.37684  14 26 55.162  -11 41 13.01  22.0G 576212    F51  C~2rXt      
2014 05  27.33920  14 26 28.908  -11 39 37.67  22.3G 576212    F51  C~2rXt      
2014 05  27.35028  14 26 28.859  -11 39 37.33  22.6G 576212    F51  C~2rXt      
2014 05  27.36139  14 26 28.815  -11 39 37.40  22.9G 576212    F51  C~2rXt      
2014 05  27.37249  14 26 28.752  -11 39 37.17  22.5G 576212    F51  C~2rXt      
2014 05  29.37831  14 26 20.260  -11 39 07.06  22.8G 576212    F51  C~2rXt      
2014 06  18.37180  14 25 07.934  -11 35 22.15  22.9G 576212    F51  C~2rXt      
2014 06  28.29144  14 24 42.144  -11 34 27.09  22.6G 576212    F51  C~2rXt      
2014 06  28.30219  14 24 42.109  -11 34 26.77  22.9G 576212    F51  C~2rXt      
2014 06  28.31290  14 24 42.085  -11 34 26.72  22.5G 576212    F51  C~2rXt      
2014 06  28.32363  14 24 42.061  -11 34 26.70  22.9G 576212    F51  C~2rXt      
2015 01  20.63787  14 37 09.306  -12 51 28.49  23.0G 576212    F51  C~2rXt      
2015 01  22.65648  14 37 12.991  -12 51 46.64  22.8G 576212    F51  C~2rXt      
2015 03  17.55240  14 36 27.152  -12 48 36.15  22.9G 576212    F51  C~2rXt      
2015 04  25.29654  14 33 42.30   -12 37 03.1   22.8V 576212    W84  C~2fc3      
2015 04  25.33103  14 33 42.13   -12 37 02.4         576212    W84  C~3vQP      
2015 04  25.36555  14 33 41.96   -12 37 01.8         576212    W84  C~2fc3      
2015 04  25.48321  14 33 41.380  -12 36 59.29  22.7G 576212    F51  C~2rXt      
2015 04  26.29237  14 33 37.43   -12 36 43.2         576212    W84  C~2fc3      
2015 04  26.32771  14 33 37.25   -12 36 42.6         576212    W84  C~3vQP      
2015 04  26.36217  14 33 37.07   -12 36 41.8         576212    W84  C~2fc3      
2015 05  22.39218  14 31 31.532  -12 28 34.73  22.7G 576212    F51  C~2rXt      
2015 05  22.40544  14 31 31.451  -12 28 34.63  22.8G 576212    F51  C~2rXt      
2016 04  05.47418  14 39 54.415  -13 30 15.84  22.7G 576212    F51  C~2rXt      
2016 04  17.46270  14 38 59.638  -13 26 34.96  22.3G 576212    F51  C~2rXt      
2016 04  30.41390  14 37 56.480  -13 22 25.33  22.5G 576212    F51  C~2rXt      
2016 04  30.42650  14 37 56.412  -13 22 24.75  22.5G 576212    F51  C~2rXt      
2016 04  30.43912  14 37 56.352  -13 22 24.52  22.9G 576212    F51  C~2rXt      
2016 04  30.45174  14 37 56.273  -13 22 24.63  22.7G 576212    F51  C~2rXt      
2017 02  24.65327  14 46 38.086  -14 24 32.04  22.7G 576212    F51  C~2rXt      
2021 06  08.288773 14 58 57.840  -17 03 30.21  22.6w 576212    F51  C~4qHB      
2021 06  08.299741 14 58 57.785  -17 03 30.10  22.6w 576212    F51  C~4qHB      
2021 06  08.321725 14 58 57.680  -17 03 29.62  22.3w 576212    F51  C~4qHB      

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    -0.25       0.00    -0.11
     2   0.0000      0.00    -0.04       0.00    -0.03
     3   0.0000      0.00    -0.03       0.00     0.30
     4   1.0458      0.00    -0.06       0.00     0.15
     5   1.0458      0.00    -0.01       0.00     0.03
     6   1.0458      0.00     0.17       0.00     0.07
     7   1.0976      0.00    -0.06       0.00    -0.33
     8   1.0976      0.00    -0.01       0.00    -0.24
     9   1.0976      0.00     0.17       0.00    -0.29
    10   7.1782      0.00    -0.01       0.00     0.12
    11   7.1782      0.00    -0.11       0.00     0.01
    12   7.1782      0.00     0.19       0.00     0.08
    13  12.1014      0.00    -0.04       0.00     0.19
    14  12.1015      0.00    -0.13       0.00     0.10
    15  13.1036      0.00     0.11       0.00     0.09
    16  13.1036      0.00     0.15       0.00     0.06
    17  13.1036      0.00     0.02       0.00     0.39
    18  13.1037      0.00     0.14       0.00     0.04
    19  13.1691      0.00    -0.04       0.00     0.18
    20  13.1691      0.00     0.08       0.00     0.13
    21  13.1691      0.00     0.07       0.00    -0.06
    22  13.1692      0.00    -0.00       0.00     0.06
    23  13.8296      0.00     0.23       0.00     0.30
    24  13.8297      0.00     0.19       0.00     0.22
    25  14.1357      0.00     0.04       0.00    -0.01
    26  14.1357      0.00     0.24       0.00    -0.33
    27  14.1357      0.00     0.30       0.00    -0.06
    28  14.1358      0.00     0.04       0.00    -0.01
    29  15.0176      0.00     0.07       0.00    -0.12
    30  15.0422      0.00     0.06       0.00    -0.09
    31  15.0422      0.00    -0.12       0.00     0.32
    32  15.0423      0.00     0.01       0.00    -0.03
    33  15.0912      0.00     0.08       0.00     0.09
    34  15.1676      0.00    -0.27       0.00    -0.16
    35  15.1677      0.00     0.07       0.00    -0.03
    36  15.1677      0.00     0.07       0.00     0.13
    37  15.1678      0.00    -0.21       0.00    -0.04
    38  15.1841      0.00    -0.11       0.00     0.01
    39  15.1841      0.00    -0.12       0.00     0.18
    40  15.1841      0.00    -0.05       0.00    -0.06
    41  15.1842      0.00    -0.27       0.00     0.00
    42  15.1897      0.00    -0.26       0.00     0.24
    43  15.2444      0.00     0.06       0.00    -0.24
    44  15.2716      0.00     0.13       0.00    -0.34
    45  15.2716      0.00    -0.03       0.00    -0.06
    46  15.2716      0.00    -0.02       0.00    -0.05
    47  15.2716      0.00    -0.01       0.00    -0.07
    48  15.8365      0.00     0.00       0.00     0.05
    49  15.8420      0.00    -0.19       0.00    -0.12
    50  15.9896      0.00    -0.01       0.00     0.17
    51  16.0957      0.00     0.00       0.00    -0.09
    52  16.0958      0.00     0.02       0.00    -0.08
    53  16.0959      0.00     0.03       0.00    -0.18
    54  16.0962      0.00    -0.15       0.00     0.20
    55  16.0984      0.00     0.11       0.00     0.04
    56  16.0985      0.00     0.05       0.00    -0.07
    57  16.0986      0.00    -0.09       0.00     0.04
    58  16.1698      0.00     0.27       0.00     0.03
    59  16.1699      0.00    -0.02       0.00    -0.09
    60  17.0434      0.00     0.02       0.00    -0.00
    61  17.0763      0.00     0.00       0.00    -0.03
    62  17.1117      0.00    -0.02       0.00    -0.26
    63  17.1118      0.00    -0.09       0.00     0.08
    64  17.1118      0.00    -0.04       0.00     0.06
    65  17.1118      0.00    -0.27       0.00    -0.29
    66  17.9337      0.00     0.11       0.00    -0.35
    67  22.2175      0.00     0.10       0.00     0.01
    68  22.2175      0.00    -0.01       0.00    -0.03
    69  22.2176      0.00    -0.16       0.00     0.15

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.

576212    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.312    40.312    40.312
ecceobj         0.024     0.024     0.024
incobj         16.606    16.606    16.606
qmin           39.036    39.036    39.037
qmax           42.205    42.205    42.205
amean          40.576    40.576    40.576
amin           40.281    40.282    40.280
amax           40.879    40.879    40.879
emean           0.019     0.019     0.019
emin            0.004     0.004     0.004
emax            0.034     0.034     0.034
imean          14.772    14.772    14.772
imin           13.879    13.879    13.879
imax           15.875    15.875    15.875
excite_mean     0.256     0.256     0.256
fracstop        1.000     1.000     1.000
cjmean          2.987     2.987     2.987

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       176.4     176.3     176.4
kozaiamp        180.0     180.0     180.0