Orbit Fit and Astrometric record for 576257

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: 576257    
# Created Sat Nov 27 02:08:16 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     98 observations of     98
# Arc:   9.15y
# First observation: 2012/04/14
#  Last observation: 2021/06/08
# Chi-squared of fit:   109.93 DOF:    190 RMS:  0.19
# Min/Max residuals:    -0.64    0.62
# Exact a, adot, b, bdot, g, gdot:
  1.986240E-05  4.424367E-02  6.888833E-06  1.658763E-02  3.589460E-02 -4.325142E-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
   21.412793 -131.073407    0.410768    0.335408   -0.855378  2456032.045746
# Heliocentric elements and errors
Epoch:              2456032.5000  =  2012/04/15
Mean Anomaly:          344.60541 +/-     0.000
Argument of Peri:       75.22532 +/-     0.000
Long of Asc Node:      185.15436 +/-     0.000
Inclination:            29.09160 +/-     0.000
Eccentricity:         0.28676084 +/-    0.0000
Semi-Major Axis:     39.17751053 +/-    0.0000
Time of Perihelion: 2459862.6813 +/-       0.0
Perihelion:          27.94293470 +/-    0.0000
Aphelion:            50.41208637 +/-    0.0000
Period (y)              245.2243 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.95094060 +/-    0.0000
Ecliptic Y          -19.97388233 +/-    0.0000
Ecliptic Z           10.17123588 +/-    0.0000
Ecliptic XDOT         0.00304439 +/-    0.0000
Ecliptic YDOT        -0.00163379 +/-    0.0000
Ecliptic ZDOT         0.00105754 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.71671795 +/-    0.0000
Geocenter to KBO     27.85942773 +/-    0.0000
# Hcoef:  8.15

The following table shows the complete astrometric record for 576257. 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 (576257) followed by the observatory code and reference code for the source of the astrometry.

2012 04  14.54498  15 28 52.859  +03 11 52.63  22.2G 576257    F51  C~345v      
2012 04  19.51692  15 28 25.642  +03 16 03.60  23.2G 576257    F51  C~345v      
2012 04  24.58553  15 27 56.344  +03 20 05.27  21.8G 576257    F51  C~345v      
2012 04  27.57940  15 27 38.433  +03 22 21.28  22.7G 576257    F51  C~345v      
2012 05  14.36758  15 25 52.935  +03 33 09.63  22.7G 576257    F51  C~345v      
2012 05  14.38016  15 25 52.848  +03 33 10.13  22.2G 576257    F51  C~345v      
2012 05  14.39283  15 25 52.762  +03 33 10.52  22.0G 576257    F51  C~345v      
2014 04  08.50046  15 51 09.252  +03 35 49.69  22.0G 576257    F51  C~345v      
2014 04  08.51311  15 51 09.195  +03 35 50.18  22.4G 576257    F51  C~345v      
2014 04  08.52582  15 51 09.154  +03 35 51.11  22.8G 576257    F51  C~345v      
2014 04  08.53862  15 51 09.100  +03 35 51.77  22.8G 576257    F51  C~345v      
2014 04  24.51740  15 49 48.372  +03 49 42.60  23.4G 576257    F51  C~345v      
2014 05  04.40473  15 48 49.589  +03 57 05.05  22.4G 576257    F51  C~345v      
2014 05  04.41672  15 48 49.542  +03 57 05.72  22.2G 576257    F51  C~345v      
2014 05  04.42873  15 48 49.431  +03 57 06.39  23.0G 576257    F51  C~345v      
2014 05  04.44079  15 48 49.388  +03 57 06.45  22.1G 576257    F51  C~345v      
2014 07  01.36865  15 43 05.249  +04 12 18.97  23.1G 576257    F51  C~345v      
2014 07  01.38067  15 43 05.213  +04 12 18.70  22.3G 576257    F51  C~345v      
2014 07  01.40467  15 43 05.094  +04 12 18.59  21.8G 576257    F51  C~345v      
2015 04  13.56420  16 01 48.473  +03 54 29.65  22.2G 576257    F51  C~345v      
2015 05  13.38971  15 58 59.105  +04 17 13.05  22.1G 576257    F51  C~345v      
2015 05  13.40232  15 58 59.027  +04 17 13.12  22.1G 576257    F51  C~345v      
2015 05  13.41494  15 58 58.960  +04 17 13.82  22.6G 576257    F51  C~345v      
2015 05  13.42761  15 58 58.872  +04 17 13.64  22.8G 576257    F51  C~345v      
2015 06  06.47606  15 56 23.165  +04 26 56.54  22.7G 576257    F51  C~345v      
2015 07  09.30587  15 53 30.027  +04 25 06.79  23.5G 576257    F51  C~345v      
2015 07  09.31848  15 53 29.967  +04 25 06.35  22.6G 576257    F51  C~345v      
2015 07  09.33107  15 53 29.920  +04 25 06.40  22.5G 576257    F51  C~345v      
2015 07  09.34364  15 53 29.869  +04 25 05.99  22.5G 576257    F51  C~345v      
2015 07  12.30726  15 53 18.784  +04 24 05.87  22.6G 576257    F51  C~345v      
2015 07  12.31987  15 53 18.732  +04 24 05.74  22.9G 576257    F51  C~345v      
2015 07  12.33245  15 53 18.686  +04 24 05.47  23.2G 576257    F51  C~345v      
2015 07  12.34506  15 53 18.643  +04 24 05.18  22.9G 576257    F51  C~345v      
2016 03  19.60586  16 14 06.707  +03 44 47.55  23.2G 576257    F51  C~345v      
2016 03  19.61447  16 14 06.698  +03 44 47.75  22.8G 576257    F51  C~345v      
2016 03  19.62314  16 14 06.692  +03 44 47.80  22.3G 576257    F51  C~345v      
2016 03  19.63191  16 14 06.675  +03 44 49.28  22.1G 576257    F51  C~345v      
2016 04  10.58237  16 13 04.200  +04 06 15.91  22.8G 576257    F51  C~345v      
2016 04  10.59426  16 13 04.126  +04 06 16.66  22.4G 576257    F51  C~345v      
2016 04  10.60612  16 13 04.081  +04 06 17.44  22.4G 576257    F51  C~345v      
2016 04  10.61800  16 13 04.064  +04 06 17.79  22.2G 576257    F51  C~345v      
2016 04  20.52087  16 12 18.315  +04 15 09.32  22.4G 576257    F51  C~345v      
2016 05  06.51553  16 10 47.909  +04 27 27.79  23.0G 576257    F51  C~345v      
2016 05  06.52800  16 10 47.884  +04 27 28.15  23.7G 576257    F51  C~345v      
2016 05  06.53990  16 10 47.791  +04 27 29.06  22.6G 576257    F51  C~345v      
2016 05  06.55181  16 10 47.701  +04 27 29.46  21.9G 576257    F51  C~345v      
2016 05  13.49532  16 10 04.078  +04 31 51.36  22.4G 576257    F51  C~345v      
2016 05  13.49662  16 10 04.059  +04 31 51.51  22.3G 576257    F51  C~345v      
2016 05  13.50809  16 10 04.002  +04 31 51.86  22.2G 576257    F51  C~345v      
2016 05  13.50938  16 10 03.988  +04 31 51.99  22.6G 576257    F51  C~345v      
2016 05  13.52077  16 10 03.908  +04 31 52.17  22.4G 576257    F51  C~345v      
2016 05  13.53344  16 10 03.836  +04 31 52.75  22.4G 576257    F51  C~345v      
2016 05  13.53474  16 10 03.814  +04 31 52.65  23.1G 576257    F51  C~345v      
2016 06  03.46593  16 07 47.090  +04 40 42.82  22.6G 576257    F51  C~345v      
2016 06  03.47712  16 07 47.018  +04 40 43.22  22.5G 576257    F51  C~345v      
2016 06  03.48829  16 07 46.945  +04 40 43.28  22.4G 576257    F51  C~345v      
2016 06  03.49947  16 07 46.876  +04 40 43.50  23.0G 576257    F51  C~345v      
2016 06  10.48082  16 07 02.462  +04 42 05.72  23.0G 576257    F51  C~345v      
2016 06  10.49151  16 07 02.358  +04 42 06.35  22.8G 576257    F51  C~345v      
2016 06  10.50220  16 07 02.297  +04 42 06.50  22.8G 576257    F51  C~345v      
2016 06  10.51286  16 07 02.273  +04 42 06.36  22.8G 576257    F51  C~345v      
2016 07  05.38625  16 04 45.891  +04 40 23.82  22.5G 576257    F51  C~345v      
2016 07  05.39834  16 04 45.849  +04 40 23.60  22.1G 576257    F51  C~345v      
2016 07  05.41040  16 04 45.788  +04 40 23.33  22.9G 576257    F51  C~345v      
2016 07  05.42247  16 04 45.726  +04 40 23.03  22.5G 576257    F51  C~345v      
2016 07  09.34790  16 04 28.807  +04 39 11.91  22.2G 576257    F51  C~345v      
2016 07  28.30131  16 03 30.534  +04 30 23.97  22.6G 576257    F51  C~345v      
2017 04  27.53348  16 22 55.929  +04 34 12.11  22.7G 576257    F51  C~345v      
2017 04  27.54610  16 22 55.860  +04 34 12.63  22.9G 576257    F51  C~345v      
2017 04  27.55872  16 22 55.796  +04 34 13.45  22.3G 576257    F51  C~345v      
2017 04  27.57136  16 22 55.739  +04 34 13.93  22.1G 576257    F51  C~345v      
2017 05  04.50237  16 22 16.350  +04 39 28.12  22.8G 576257    F51  C~345v      
2017 05  18.53993  16 20 48.770  +04 48 10.99  22.2G 576257    F51  C~345v      
2017 05  30.48873  16 19 30.045  +04 53 17.47  22.5G 576257    F51  C~345v      
2017 05  30.50102  16 19 29.947  +04 53 17.93  22.3G 576257    F51  C~345v      
2017 05  30.51330  16 19 29.870  +04 53 17.88  22.4G 576257    F51  C~345v      
2017 05  30.52570  16 19 29.803  +04 53 18.24  22.6G 576257    F51  C~345v      
2018 04  13.59415  16 35 18.485  +04 34 46.24  22.7G 576257    F51  C~345v      
2018 04  13.60313  16 35 18.426  +04 34 46.67  23.6G 576257    F51  C~345v      
2018 04  13.61216  16 35 18.404  +04 34 47.08  22.3G 576257    F51  C~345v      
2018 04  13.62114  16 35 18.347  +04 34 47.79  21.8G 576257    F51  C~345v      
2018 06  13.35899  16 29 20.514  +05 09 39.61  22.6G 576257    F51  C~345v      
2018 07  05.32621  16 27 12.027  +05 07 55.30  22.4G 576257    F51  C~345v      
2018 07  13.32143  16 26 34.117  +05 05 19.04  22.7G 576257    F51  C~345v      
2018 07  13.33319  16 26 34.071  +05 05 18.91  22.6G 576257    F51  C~345v      
2018 07  13.34488  16 26 34.002  +05 05 19.01  22.2G 576257    F51  C~345v      
2018 07  13.35659  16 26 33.958  +05 05 18.37  22.3G 576257    F51  C~345v      
2020 05  30.50095  16 53 38.245  +05 31 41.64  22.4w 576257    F51  C~3wRW      
2020 05  30.51272  16 53 38.178  +05 31 41.52  22.3w 576257    F51  C~3wRW      
2020 05  30.52452  16 53 38.078  +05 31 41.94  22.4w 576257    F51  C~3wRW      
2021 06  02.368285 17 04 48.747  +05 44 11.57  22.3w 576257    F51  C~4qHL      
2021 06  02.380035 17 04 48.667  +05 44 11.76  22.1w 576257    F51  C~4qHL      
2021 06  02.391832 17 04 48.610  +05 44 11.83  22.5w 576257    F51  C~4qHL      
2021 06  02.403694 17 04 48.518  +05 44 12.09  22.4w 576257    F51  C~4qHL      
2021 06  08.402333 17 04 08.222  +05 45 47.91  22.4w 576257    F51  C~4qHL      
2021 06  08.411552 17 04 08.163  +05 45 47.84  22.4w 576257    F51  C~4qHL      
2021 06  08.420838 17 04 08.102  +05 45 48.19  22.6w 576257    F51  C~4qHL      
2021 06  08.430065 17 04 08.019  +05 45 48.59  22.9w 576257    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    -0.05       0.00     0.10
     2   0.0136      0.00    -0.35       0.00     0.42
     3   0.0275      0.00    -0.13       0.00    -0.18
     4   0.0357      0.00     0.06       0.00    -0.18
     5   0.0816      0.00     0.19       0.00    -0.05
     6   0.0817      0.00     0.12       0.00     0.05
     7   0.0817      0.00     0.07       0.00     0.03
     8   1.9821      0.00    -0.21       0.00     0.28
     9   1.9821      0.00    -0.21       0.00     0.07
    10   1.9822      0.00     0.03       0.00     0.30
    11   1.9822      0.00     0.08       0.00     0.25
    12   2.0259      0.00     0.17       0.00    -0.20
    13   2.0530      0.00    -0.06       0.00    -0.22
    14   2.0530      0.00     0.37       0.00    -0.04
    15   2.0531      0.00    -0.16       0.00     0.13
    16   2.0531      0.00     0.34       0.00    -0.31
    17   2.2117      0.00    -0.08       0.00     0.08
    18   2.2117      0.00     0.19       0.00    -0.05
    19   2.2118      0.00     0.02       0.00     0.13
    20   2.9953      0.00     0.14       0.00    -0.03
    21   3.0769      0.00    -0.30       0.00     0.10
    22   3.0770      0.00    -0.23       0.00    -0.27
    23   3.0770      0.00     0.00       0.00    -0.02
    24   3.0770      0.00    -0.08       0.00    -0.64
    25   3.1429      0.00    -0.32       0.00     0.27
    26   3.2327      0.00     0.04       0.00     0.02
    27   3.2328      0.00    -0.10       0.00    -0.18
    28   3.2328      0.00    -0.04       0.00     0.11
    29   3.2329      0.00    -0.05       0.00    -0.06
    30   3.2410      0.00     0.08       0.00    -0.10
    31   3.2410      0.00    -0.00       0.00     0.04
    32   3.2410      0.00     0.01       0.00     0.04
    33   3.2411      0.00     0.06       0.00     0.02
    34   3.9290      0.00    -0.19       0.00     0.45
    35   3.9290      0.00    -0.12       0.00     0.13
    36   3.9290      0.00    -0.01       0.00    -0.34
    37   3.9291      0.00    -0.05       0.00     0.62
    38   3.9892      0.00     0.31       0.00    -0.20
    39   3.9892      0.00    -0.05       0.00    -0.11
    40   3.9892      0.00     0.04       0.00     0.01
    41   3.9892      0.00     0.54       0.00    -0.30
    42   4.0164      0.00    -0.22       0.00     0.02
    43   4.0602      0.00    -0.46       0.00    -0.12
    44   4.0602      0.00     0.33       0.00    -0.27
    45   4.0602      0.00     0.06       0.00     0.16
    46   4.0603      0.00    -0.17       0.00     0.08
    47   4.0793      0.00     0.12       0.00    -0.11
    48   4.0793      0.00    -0.04       0.00    -0.00
    49   4.0793      0.00     0.23       0.00    -0.05
    50   4.0793      0.00     0.15       0.00     0.03
    51   4.0793      0.00     0.06       0.00    -0.18
    52   4.0794      0.00     0.23       0.00    -0.04
    53   4.0794      0.00     0.02       0.00    -0.19
    54   4.1367      0.00    -0.08       0.00    -0.26
    55   4.1367      0.00    -0.06       0.00    -0.03
    56   4.1367      0.00    -0.05       0.00    -0.14
    57   4.1368      0.00     0.02       0.00    -0.10
    58   4.1559      0.00     0.29       0.00    -0.29
    59   4.1559      0.00    -0.26       0.00     0.25
    60   4.1559      0.00    -0.16       0.00     0.31
    61   4.1560      0.00     0.50       0.00     0.09
    62   4.2241      0.00    -0.09       0.00     0.14
    63   4.2241      0.00     0.12       0.00     0.12
    64   4.2241      0.00     0.04       0.00     0.05
    65   4.2242      0.00    -0.05       0.00    -0.05
    66   4.2349      0.00     0.18       0.00    -0.23
    67   4.2868      0.00    -0.35       0.00    -0.07
    68   5.0349      0.00    -0.05       0.00     0.10
    69   5.0349      0.00    -0.03       0.00     0.02
    70   5.0349      0.00     0.06       0.00     0.23
    71   5.0350      0.00     0.26       0.00     0.11
    72   5.0540      0.00    -0.41       0.00    -0.13
    73   5.0924      0.00     0.02       0.00     0.14
    74   5.1251      0.00     0.02       0.00    -0.04
    75   5.1251      0.00    -0.21       0.00     0.18
    76   5.1252      0.00    -0.12       0.00    -0.11
    77   5.1252      0.00     0.12       0.00     0.00
    78   5.9960      0.00     0.24       0.00     0.14
    79   5.9961      0.00    -0.10       0.00     0.06
    80   5.9961      0.00     0.11       0.00    -0.03
    81   5.9961      0.00    -0.21       0.00     0.17
    82   6.1624      0.00    -0.03       0.00     0.09
    83   6.2225      0.00    -0.12       0.00     0.06
    84   6.2444      0.00    -0.08       0.00    -0.16
    85   6.2445      0.00     0.02       0.00    -0.01
    86   6.2445      0.00    -0.23       0.00     0.36
    87   6.2445      0.00    -0.10       0.00    -0.01
    88   8.1258      0.00     0.10       0.00     0.17
    89   8.1259      0.00     0.30       0.00    -0.20
    90   8.1259      0.00    -0.00       0.00    -0.02
    91   9.1330      0.00    -0.16       0.00     0.01
    92   9.1330      0.00    -0.16       0.00    -0.03
    93   9.1331      0.00     0.18       0.00    -0.19
    94   9.1331      0.00     0.02       0.00    -0.15
    95   9.1495      0.00    -0.02       0.00     0.01
    96   9.1495      0.00     0.04       0.00    -0.18
    97   9.1496      0.00     0.08       0.00     0.05
    98   9.1496      0.00    -0.21       0.00     0.33

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.

576257    quality flag:3

Type:           3:2E      3:2E      3:2E
Type:          6:4II     6:4II     6:4II

axisobj        39.086    39.086    39.086
ecceobj         0.286     0.286     0.286
incobj         29.133    29.133    29.133
qmin           26.521    26.519    26.518
qmax           52.942    52.964    52.994
amean          39.453    39.453    39.453
amin           39.056    39.058    39.049
amax           39.944    39.954    39.965
emean           0.271     0.271     0.271
emin            0.209     0.209     0.208
emax            0.326     0.326     0.326
imean          29.311    29.311    29.311
imin           27.851    27.852    27.849
imax           30.817    30.816    30.818
excite_mean     0.561     0.561     0.561
fracstop        1.000     1.000     1.000
cjmean          2.684     2.684     2.684

libcent 0       179.5     179.9     179.9
libamp  0        61.2      61.2      60.5
libcent 1       182.3     182.5     181.9
libamp  1       163.7     163.1     163.6
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        92.0      92.0      92.0
kozaiamp         34.4      34.3      34.3