Orbit Fit and Astrometric record for 576256

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: 576256    
# Created Tue Dec  7 02:08:16 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     84 observations of     84
# Arc:  11.14y
# First observation: 2010/04/19
#  Last observation: 2021/06/08
# Chi-squared of fit:    86.85 DOF:    162 RMS:  0.18
# Min/Max residuals:    -0.68    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.643481E-05  2.177559E-02 -2.370662E-06 -6.683298E-04  2.310385E-02  6.116127E-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
   -6.501940 -136.570985    0.252780   -0.110401   -0.968291  2455305.927386
# Heliocentric elements and errors
Epoch:              2455306.5000  =  2010/04/20
Mean Anomaly:           59.66799 +/-     0.000
Argument of Peri:      163.34381 +/-     0.000
Long of Asc Node:      329.34246 +/-     0.000
Inclination:             6.62109 +/-     0.000
Eccentricity:         0.27218544 +/-    0.0000
Semi-Major Axis:     47.67255417 +/-    0.0000
Time of Perihelion: 2435379.5888 +/-       0.0
Perihelion:          34.69677925 +/-    0.0000
Aphelion:            60.64832908 +/-    0.0000
Period (y)              329.1629 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -32.10798362 +/-    0.0000
Ecliptic Y          -30.05283371 +/-    0.0000
Ecliptic Z           -4.90127972 +/-    0.0000
Ecliptic XDOT         0.00125942 +/-    0.0000
Ecliptic YDOT        -0.00235695 +/-    0.0000
Ecliptic ZDOT        -0.00016081 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.25045114 +/-    0.0000
Geocenter to KBO     43.28267681 +/-    0.0000
# Hcoef:  5.40

The following table shows the complete astrometric record for 576256. 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 (576256) followed by the observatory code and reference code for the source of the astrometry.

2010 04  19.42662  14 35 29.143  -22 03 38.37  21.9g 576256    F51  C~1w3q      
2010 04  19.43588  14 35 29.128  -22 03 38.42  22.0g 576256    F51  C~1w3q      
2010 05  06.43580  14 34 09.234  -21 57 59.95  21.9G 576256    F51  C~2r7M      
2010 05  06.44748  14 34 09.170  -21 57 59.60  21.6G 576256    F51  C~2r7M      
2010 05  13.39693  14 33 36.734  -21 55 26.95  22.1r 576256    F51  C~1w3q      
2011 04  13.49597  14 40 59.395  -22 30 23.17  22.2G 576256    F51  C~2r7M      
2011 04  14.47305  14 40 55.087  -22 30 08.13  21.4i 576256    F51  C~1w3q      
2011 04  14.48454  14 40 55.021  -22 30 07.51  21.5i 576256    F51  C~1w3q      
2012 01  30.63779  14 48 19.770  -22 54 42.12  22.2w 576256    F51  C~1w3q      
2012 01  30.64244  14 48 19.769  -22 54 42.31  22.0w 576256    F51  C~1w3q      
2012 01  30.64706  14 48 19.780  -22 54 42.18  22.1w 576256    F51  C~1w3q      
2012 05  14.40750  14 43 32.964  -22 44 39.70  21.9r 576256    F51  C~1w3q      
2012 05  14.41784  14 43 32.907  -22 44 39.39  21.8r 576256    F51  C~1w3q      
2012 05  20.37015  14 43 05.741  -22 42 31.38  22.1w 576256    F51  C~1w3q      
2012 05  20.38476  14 43 05.673  -22 42 31.01  21.9w 576256    F51  C~1w3q      
2012 05  20.39935  14 43 05.609  -22 42 30.69  21.8w 576256    F51  C~1w3q      
2012 05  20.41394  14 43 05.540  -22 42 30.40  21.7w 576256    F51  C~1w3q      
2012 06  08.31931  14 41 47.380  -22 35 41.51  21.5G 576256    F51  C~2r7M      
2013 04  12.50097  14 51 00.182  -23 17 45.73  21.7w 576256    F51  C~1w3q      
2013 04  12.52871  14 51 00.063  -23 17 45.26  21.7w 576256    F51  C~1w3q      
2013 04  12.54256  14 51 00.010  -23 17 45.22  21.7w 576256    F51  C~1w3q      
2013 05  05.39440  14 49 15.393  -23 11 19.91  21.9w 576256    F51  C~1w3q      
2013 05  05.40921  14 49 15.324  -23 11 19.82  21.7w 576256    F51  C~1w3q      
2013 05  05.42399  14 49 15.245  -23 11 19.63  22.1w 576256    F51  C~1w3q      
2013 05  05.43878  14 49 15.175  -23 11 19.41  21.8w 576256    F51  C~1w3q      
2014 02  10.60147  14 58 11.918  -23 41 18.85  21.9w 576256    F51  C~1w3q      
2014 02  10.61068  14 58 11.930  -23 41 19.14  21.8w 576256    F51  C~1w3q      
2014 02  10.61992  14 58 11.933  -23 41 18.80  22.0w 576256    F51  C~1w3q      
2014 02  10.62914  14 58 11.924  -23 41 19.22  21.9w 576256    F51  C~1w3q      
2014 03  12.56892  14 57 42.322  -23 43 53.06  21.4i 576256    F51  C~1w3q      
2014 03  12.58662  14 57 42.270  -23 43 53.28  22.1w 576256    F51  C~1w3q      
2014 03  12.59857  14 57 42.226  -23 43 52.99  22.1w 576256    F51  C~1w3q      
2014 04  30.45032  14 54 37.240  -23 35 32.21  22.5G 576256    F51  C~2r7M      
2014 05  23.39769  14 52 50.421  -23 28 03.62  21.7G 576256    F51  C~2r7M      
2014 05  23.40891  14 52 50.378  -23 28 03.12  21.8G 576256    F51  C~2r7M      
2014 06  04.31624  14 51 59.381  -23 23 53.80  21.9G 576256    F51  C~2r7M      
2015 01  21.65239  15 02 31.471  -23 57 02.58  22.0G 576256    F51  C~2r7M      
2015 01  21.65570  15 02 31.485  -23 57 02.60  22.3G 576256    F51  C~2r7M      
2015 01  21.65900  15 02 31.479  -23 57 02.85  21.5G 576256    F51  C~2r7M      
2015 01  21.66230  15 02 31.487  -23 57 02.51  22.2G 576256    F51  C~2r7M      
2015 01  23.64343  15 02 36.120  -23 57 38.88  22.1G 576256    F51  C~2r7M      
2015 01  23.64827  15 02 36.127  -23 57 38.98  21.9G 576256    F51  C~2r7M      
2015 01  23.65249  15 02 36.156  -23 57 39.31  22.0G 576256    F51  C~2r7M      
2015 01  23.65672  15 02 36.143  -23 57 39.42  22.2G 576256    F51  C~2r7M      
2015 02  25.64395  15 02 58.752  -24 04 20.37  22.2G 576256    F51  C~2r7M      
2015 03  22.55051  15 02 09.924  -24 04 37.03  21.7G 576256    F51  C~2r7M      
2015 03  22.56110  15 02 09.895  -24 04 37.14  22.2G 576256    F51  C~2r7M      
2015 03  22.57172  15 02 09.872  -24 04 37.08  22.0G 576256    F51  C~2r7M      
2015 03  22.58231  15 02 09.838  -24 04 37.11  22.1G 576256    F51  C~2r7M      
2015 03  30.56641  15 01 44.034  -24 03 49.53  22.1G 576256    F51  C~2r7M      
2015 05  21.04367  14 57 58.04   -23 50 54.8         576256    W84  C~2i4a      
2015 05  22.04969  14 57 53.50   -23 50 34.7   22.5V 576256    W84  C~2i4a      
2015 05  24.03515  14 57 44.47   -23 49 54.4         576256    W84  C~2i4a      
2015 05  24.42764  14 57 42.755  -23 49 46.90  22.0G 576256    F51  C~2r7M      
2015 06  18.30361  14 56 03.138  -23 41 22.92  21.5G 576256    F51  C~2r7M      
2015 06  18.31589  14 56 03.110  -23 41 22.78  21.7G 576256    F51  C~2r7M      
2015 06  18.32817  14 56 03.045  -23 41 22.67  21.5G 576256    F51  C~2r7M      
2015 06  18.34054  14 56 03.012  -23 41 22.11  22.2G 576256    F51  C~2r7M      
2015 06  19.29053  14 55 59.864  -23 41 03.55  21.8G 576256    F51  C~2r7M      
2015 06  19.30241  14 55 59.818  -23 41 03.45  22.1G 576256    F51  C~2r7M      
2015 06  19.31433  14 55 59.781  -23 41 03.14  21.8G 576256    F51  C~2r7M      
2015 06  19.32620  14 55 59.732  -23 41 02.98  22.2G 576256    F51  C~2r7M      
2015 06  23.31463  14 55 47.058  -23 39 46.74  21.4G 576256    F51  C~2r7M      
2015 06  23.32595  14 55 47.018  -23 39 46.74  22.3G 576256    F51  C~2r7M      
2015 06  23.33739  14 55 46.952  -23 39 46.41  21.6G 576256    F51  C~2r7M      
2015 06  23.34877  14 55 46.926  -23 39 46.30  21.9G 576256    F51  C~2r7M      
2016 03  10.59587  15 07 29.402  -24 25 20.17  21.5G 576256    F51  C~2r7M      
2017 05  19.44441  15 07 50.748  -24 32 48.69  22.9G 576256    F51  C~2r7M      
2017 05  21.39213  15 07 41.789  -24 32 11.63  22.5G 576256    F51  C~2r7M      
2017 05  21.40271  15 07 41.716  -24 32 11.60  21.7G 576256    F51  C~2r7M      
2017 05  21.41325  15 07 41.682  -24 32 11.23  22.4G 576256    F51  C~2r7M      
2017 05  21.42381  15 07 41.619  -24 32 11.20  22.1G 576256    F51  C~2r7M      
2017 07  15.33280  15 04 36.964  -24 15 32.90  21.6G 576256    F51  C~2r7M      
2018 05  19.45802  15 12 43.319  -24 52 27.59  22.6G 576256    F51  C~2r7M      
2020 05  25.39593  15 21 50.954  -25 27 23.29  22.0w 576256    F51  C~3vQQ      
2020 05  25.40575  15 21 50.920  -25 27 23.27  22.0w 576256    F51  C~3vQQ      
2020 05  25.41558  15 21 50.853  -25 27 23.13  21.8w 576256    F51  C~3vQQ      
2020 06  14.32785  15 20 25.753  -25 21 20.40  22.0w 576256    F51  C~3woJ      
2020 06  14.33820  15 20 25.720  -25 21 20.29  22.0w 576256    F51  C~3woJ      
2020 06  14.34856  15 20 25.653  -25 21 19.96  22.0w 576256    F51  C~3woJ      
2020 06  14.35889  15 20 25.619  -25 21 19.68  22.0w 576256    F51  C~3woJ      
2021 06  08.356284 15 25 35.885  -25 40 38.77  22.3w 576256    F51  C~4qHL      
2021 06  08.367973 15 25 35.823  -25 40 38.65  22.1w 576256    F51  C~4qHL      
2021 06  08.381478 15 25 35.757  -25 40 38.16  22.5w 576256    F51  C~4qHL      

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    -0.19       0.00     0.47
     2   0.0000      0.00     0.24       0.00     0.26
     3   0.0466      0.00    -0.07       0.00    -0.35
     4   0.0466      0.00    -0.19       0.00    -0.25
     5   0.0656      0.00    -0.09       0.00     0.16
     6   0.9831      0.00     0.13       0.00     0.00
     7   0.9858      0.00     0.23       0.00    -0.23
     8   0.9858      0.00     0.02       0.00     0.21
     9   1.7829      0.00     0.20       0.00     0.12
    10   1.7829      0.00     0.10       0.00     0.01
    11   1.7829      0.00     0.19       0.00     0.21
    12   2.0698      0.00     0.08       0.00    -0.02
    13   2.0698      0.00    -0.05       0.00     0.07
    14   2.0861      0.00    -0.09       0.00     0.06
    15   2.0861      0.00    -0.11       0.00     0.11
    16   2.0862      0.00    -0.07       0.00     0.12
    17   2.0862      0.00    -0.10       0.00     0.09
    18   2.1380      0.00    -0.15       0.00    -0.18
    19   2.9817      0.00     0.10       0.00     0.00
    20   2.9818      0.00     0.14       0.00     0.09
    21   2.9818      0.00     0.25       0.00    -0.06
    22   3.0444      0.00     0.17       0.00     0.19
    23   3.0444      0.00     0.20       0.00    -0.00
    24   3.0445      0.00     0.08       0.00    -0.10
    25   3.0445      0.00     0.10       0.00    -0.17
    26   3.8143      0.00    -0.02       0.00     0.03
    27   3.8143      0.00     0.11       0.00    -0.16
    28   3.8144      0.00     0.11       0.00     0.29
    29   3.8144      0.00    -0.07       0.00    -0.03
    30   3.8964      0.00     0.22       0.00     0.01
    31   3.8964      0.00     0.07       0.00    -0.23
    32   3.8964      0.00    -0.16       0.00     0.05
    33   4.0302      0.00    -0.01       0.00     0.16
    34   4.0930      0.00     0.02       0.00    -0.25
    35   4.0930      0.00     0.15       0.00     0.01
    36   4.1256      0.00    -0.07       0.00     0.12
    37   4.7590      0.00    -0.03       0.00    -0.10
    38   4.7590      0.00     0.06       0.00    -0.06
    39   4.7590      0.00    -0.15       0.00    -0.25
    40   4.7590      0.00    -0.14       0.00     0.16
    41   4.7645      0.00    -0.07       0.00     0.10
    42   4.7645      0.00    -0.12       0.00     0.09
    43   4.7645      0.00     0.17       0.00    -0.16
    44   4.7645      0.00    -0.16       0.00    -0.19
    45   4.8548      0.00     0.03       0.00    -0.13
    46   4.9230      0.00    -0.08       0.00     0.07
    47   4.9230      0.00    -0.03       0.00    -0.09
    48   4.9231      0.00     0.11       0.00    -0.08
    49   4.9231      0.00     0.08       0.00    -0.15
    50   4.9449      0.00    -0.09       0.00    -0.00
    51   5.0859      0.00    -0.66       0.00     0.29
    52   5.0886      0.00     0.08       0.00     0.13
    53   5.0941      0.00    -0.60       0.00     0.23
    54   5.0951      0.00     0.32       0.00    -0.07
    55   5.1632      0.00    -0.20       0.00    -0.20
    56   5.1633      0.00     0.02       0.00    -0.30
    57   5.1633      0.00    -0.32       0.00    -0.43
    58   5.1634      0.00    -0.17       0.00    -0.11
    59   5.1660      0.00     0.19       0.00     0.02
    60   5.1660      0.00     0.11       0.00    -0.11
    61   5.1660      0.00     0.16       0.00    -0.03
    62   5.1660      0.00     0.03       0.00    -0.10
    63   5.1770      0.00     0.35       0.00     0.17
    64   5.1770      0.00     0.28       0.00    -0.05
    65   5.1770      0.00    -0.17       0.00     0.07
    66   5.1771      0.00    -0.02       0.00    -0.04
    67   5.8923      0.00    -0.68       0.00    -0.22
    68   7.0829      0.00    -0.21       0.00    -0.15
    69   7.0882      0.00     0.12       0.00     0.06
    70   7.0882      0.00    -0.23       0.00    -0.12
    71   7.0883      0.00     0.00       0.00     0.05
    72   7.0883      0.00    -0.20       0.00    -0.12
    73   7.2386      0.00     0.19       0.00     0.37
    74   8.0822      0.00     0.16       0.00    -0.19
    75  10.0998      0.00     0.02       0.00     0.20
    76  10.0999      0.00     0.19       0.00     0.04
    77  10.0999      0.00    -0.13       0.00     0.01
    78  10.1544      0.00     0.10       0.00     0.01
    79  10.1544      0.00     0.22       0.00    -0.07
    80  10.1545      0.00    -0.17       0.00     0.07
    81  10.1545      0.00    -0.06       0.00     0.16
    82  11.1374      0.00     0.23       0.00     0.09
    83  11.1374      0.00     0.06       0.00     0.00
    84  11.1375      0.00    -0.06       0.00     0.25

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.

576256    quality flag:3

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

axisobj        47.470    47.470    47.470
ecceobj         0.273     0.273     0.273
incobj          6.621     6.621     6.621
qmin           33.728    33.727    33.728
qmax           62.484    62.485    62.482
amean          47.798    47.798    47.798
amin           47.327    47.328    47.326
amax           48.368    48.368    48.368
emean           0.274     0.274     0.274
emin            0.251     0.251     0.251
emax            0.293     0.293     0.293
imean           7.882     7.880     7.884
imin            7.123     7.122     7.124
imax            9.041     9.039     9.043
excite_mean     0.307     0.307     0.307
fracstop        1.000     1.000     1.000
cjmean          3.030     3.030     3.030

libcent 0       286.0     286.0     286.1
libamp  0        14.8      14.9      14.7
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       171.9     171.7     171.7
kozaiamp        179.9     180.0     179.9