Orbit Fit and Astrometric record for 524460

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: 524460    
# Created Wed Dec  8 02:07:56 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     67 observations of     67
# Arc:  16.11y
# First observation: 2002/04/08
#  Last observation: 2018/05/19
# Chi-squared of fit:    65.63 DOF:    128 RMS:  0.17
# Min/Max residuals:    -0.56    0.82
# Exact a, adot, b, bdot, g, gdot:
  1.392564E-05  2.222066E-02 -1.456121E-06 -1.081120E-03  2.423096E-02  3.800626E-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
    0.144781 -138.051226    0.401334    0.002280   -0.919959  2452372.636773
# Heliocentric elements and errors
Epoch:              2452372.5000  =  2002/04/08
Mean Anomaly:          105.73372 +/-     0.000
Argument of Peri:       53.12526 +/-     0.000
Long of Asc Node:       44.31215 +/-     0.000
Inclination:             2.78311 +/-     0.000
Eccentricity:         0.17820496 +/-    0.0000
Semi-Major Axis:     39.23363408 +/-    0.0000
Time of Perihelion: 2426009.3529 +/-       0.0
Perihelion:          32.24200603 +/-    0.0000
Aphelion:            46.22526213 +/-    0.0000
Period (y)              245.7514 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.64519653 +/-    0.0000
Ecliptic Y          -27.89856418 +/-    0.0000
Ecliptic Z            0.10420734 +/-    0.0000
Ecliptic XDOT         0.00135034 +/-    0.0000
Ecliptic YDOT        -0.00215597 +/-    0.0000
Ecliptic ZDOT        -0.00012085 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.18709442 +/-    0.0000
Geocenter to KBO     41.26943412 +/-    0.0000
# Hcoef:  6.41

The following table shows the complete astrometric record for 524460. 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 (524460) followed by the observatory code and reference code for the source of the astrometry.

2002 04  08.13603  14 38 13.38   -15 16 57.6   21.1R 524460    807  Cf5154      
2002 04  08.22273  14 38 13.00   -15 16 55.9         524460    807  Cf5154      
2002 04  09.36795  14 38 08.02   -15 16 33.4         524460    807  Cf5154      
2002 06  07.30424  14 33 41.64   -14 56 18.3         524460    568  Cf8972      
2002 06  07.30783  14 33 41.63   -14 56 18.2         524460    568  Cf8972      
2002 06  07.31454  14 33 41.61   -14 56 18.1         524460    568  Cf8972      
2002 06  07.32242  14 33 41.57   -14 56 18.0         524460    568  Cf8972      
2002 06  07.32754  14 33 41.55   -14 56 17.9         524460    568  Cf8972      
2002 06  07.33125  14 33 41.54   -14 56 17.8         524460    568  Cf8972      
2002 06  07.33487  14 33 41.53   -14 56 17.7         524460    568  Cf8972      
2002 06  07.34156  14 33 41.50   -14 56 17.7         524460    568  Cf8972      
2002 06  07.34944  14 33 41.47   -14 56 17.5         524460    568  Cf8972      
2002 06  07.35457  14 33 41.45   -14 56 17.4         524460    568  Cf8972      
2002 06  12.20771  14 33 24.07   -14 54 59.1   21.7R 524460    688  Cf7381      
2002 06  12.30815  14 33 23.78   -14 54 56.3         524460    688  Cf7381      
2003 05  30.19331  14 39 10.40   -15 25 49.4   21.5R 524460    807  Ci2129      
2003 05  30.27877  14 39 10.02   -15 25 47.5         524460    807  Ci2129      
2003 05  31.11193  14 39 06.56   -15 25 32.1   21.4R 524460    807  Ci2129      
2003 05  31.14014  14 39 06.43   -15 25 31.4         524460    807  Ci2129      
2003 05  31.20217  14 39 06.17   -15 25 30.4         524460    807  Ci2129      
2003 06  01.03225  14 39 02.74   -15 25 15.1         524460    807  Ci2129      
2004 03  16.39418  14 49 24.84   -16 15 20.9   22.5R 524460    695  Ck4262      
2004 03  16.48630  14 49 24.56   -16 15 19.6         524460    695  Ck4262      
2011 01  30.64580  15 23 27.560  -18 58 26.38  23.1G 524460    F51  C~2r79      
2012 05  19.39120  15 23 55.696  -19 05 29.28  22.6G 524460    F51  C~2r79      
2012 05  19.40667  15 23 55.607  -19 05 29.14  22.7G 524460    F51  C~2r79      
2012 05  19.43763  15 23 55.471  -19 05 28.40  22.9G 524460    F51  C~2r79      
2012 06  08.32428  15 22 23.771  -18 59 58.89  23.3G 524460    F51  C~2r79      
2013 04  16.51324  15 31 19.374  -19 35 06.25  22.9G 524460    F51  C~2r79      
2013 05  08.43671  15 29 39.869  -19 29 34.21  22.3G 524460    F51  C~2r79      
2013 05  08.45081  15 29 39.810  -19 29 34.10  22.3G 524460    F51  C~2r79      
2013 05  08.46490  15 29 39.730  -19 29 33.89  22.8G 524460    F51  C~2r79      
2013 05  08.47903  15 29 39.654  -19 29 33.47  22.7G 524460    F51  C~2r79      
2013 06  01.36940  15 27 45.394  -19 22 59.46  22.8G 524460    F51  C~2r79      
2013 06  01.38423  15 27 45.322  -19 22 58.89  22.5G 524460    F51  C~2r79      
2013 06  01.39904  15 27 45.260  -19 22 58.90  22.3G 524460    F51  C~2r79      
2013 06  01.41385  15 27 45.186  -19 22 58.41  22.8G 524460    F51  C~2r79      
2014 04  30.47211  15 35 08.369  -19 51 58.34  23.7G 524460    F51  C~2r79      
2014 04  30.48399  15 35 08.342  -19 51 58.24  22.2G 524460    F51  C~2r79      
2014 05  20.38302  15 33 33.090  -19 46 45.22  22.4G 524460    F51  C~2r79      
2014 05  20.39434  15 33 33.022  -19 46 44.75  22.4G 524460    F51  C~2r79      
2014 05  20.40563  15 33 32.979  -19 46 44.74  22.5G 524460    F51  C~2r79      
2014 05  20.41691  15 33 32.913  -19 46 44.65  22.3G 524460    F51  C~2r79      
2014 07  01.32039  15 30 35.356  -19 36 36.93  22.1G 524460    F51  C~2r79      
2014 07  01.33166  15 30 35.329  -19 36 36.66  22.7G 524460    F51  C~2r79      
2014 07  01.34293  15 30 35.292  -19 36 36.79  22.5G 524460    F51  C~2r79      
2014 07  01.35420  15 30 35.254  -19 36 36.47  22.7G 524460    F51  C~2r79      
2014 07  25.30195  15 29 40.179  -19 33 19.33  22.6G 524460    F51  C~2r79      
2015 04  24.35518  15 40 26.46   -20 13 05.2   22.6R 524460    G37  C~1ReA      
2015 04  24.44903  15 40 26.06   -20 13 03.5         524460    G37  C~1ReA      
2015 05  25.37766  15 37 59.895  -20 05 20.79  22.1G 524460    F51  C~2r79      
2015 05  25.38897  15 37 59.842  -20 05 20.95  22.4G 524460    F51  C~2r79      
2015 05  25.40030  15 37 59.777  -20 05 20.84  21.6G 524460    F51  C~2r79      
2015 05  25.41161  15 37 59.739  -20 05 20.49  22.2G 524460    F51  C~2r79      
2015 07  19.27661  15 34 36.201  -19 53 55.97  22.8G 524460    F51  C~2r79      
2015 07  19.28758  15 34 36.175  -19 53 55.95  22.9G 524460    F51  C~2r79      
2015 07  19.29853  15 34 36.164  -19 53 55.98  23.6G 524460    F51  C~2r79      
2015 07  19.30951  15 34 36.112  -19 53 55.73  23.6G 524460    F51  C~2r79      
2016 05  07.45333  15 44 12.605  -20 28 55.14  23.0G 524460    F51  C~2r79      
2016 05  07.46443  15 44 12.551  -20 28 55.32  22.7G 524460    F51  C~2r79      
2016 05  07.47551  15 44 12.502  -20 28 54.84  22.8G 524460    F51  C~2r79      
2017 04  26.49515  15 49 53.578  -20 49 56.80  22.5G 524460    F51  C~2r79      
2017 04  26.50635  15 49 53.539  -20 49 56.63  22.5G 524460    F51  C~2r79      
2017 04  26.51755  15 49 53.495  -20 49 56.59  23.6G 524460    F51  C~2r79      
2017 04  26.52879  15 49 53.441  -20 49 56.40  22.6G 524460    F51  C~2r79      
2018 04  12.55095  15 55 39.511  -21 10 18.69  22.9G 524460    F51  C~2r79      
2018 05  19.46590  15 52 56.581  -21 02 51.07  22.9G 524460    F51  C~2r79      

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     0.17       0.00     0.11
     2   0.0002      0.00     0.17       0.00     0.13
     3   0.0034      0.00     0.22       0.00     0.06
     4   0.1647      0.00    -0.08       0.00     0.01
     5   0.1647      0.00    -0.03       0.00     0.05
     6   0.1648      0.00     0.06       0.00     0.03
     7   0.1648      0.00    -0.09       0.00     0.00
     8   0.1648      0.00    -0.10       0.00     0.01
     9   0.1648      0.00    -0.04       0.00     0.05
    10   0.1648      0.00     0.02       0.00     0.09
    11   0.1648      0.00    -0.05       0.00    -0.02
    12   0.1649      0.00    -0.05       0.00     0.04
    13   0.1649      0.00    -0.06       0.00     0.06
    14   0.1782      0.00    -0.10       0.00    -0.56
    15   0.1784      0.00     0.82       0.00     0.67
    16   1.1418      0.00    -0.03       0.00    -0.28
    17   1.1421      0.00    -0.26       0.00    -0.01
    18   1.1444      0.00     0.01       0.00    -0.21
    19   1.1444      0.00    -0.14       0.00    -0.04
    20   1.1446      0.00    -0.10       0.00    -0.20
    21   1.1469      0.00    -0.12       0.00    -0.31
    22   1.9391      0.00    -0.09       0.00    -0.01
    23   1.9394      0.00    -0.22       0.00     0.17
    24   8.8145      0.00    -0.04       0.00     0.20
    25  10.1143      0.00    -0.03       0.00    -0.02
    26  10.1144      0.00    -0.22       0.00    -0.15
    27  10.1144      0.00     0.01       0.00     0.06
    28  10.1689      0.00    -0.18       0.00     0.05
    29  11.0236      0.00     0.16       0.00    -0.16
    30  11.0836      0.00     0.07       0.00    -0.14
    31  11.0837      0.00     0.22       0.00    -0.26
    32  11.0837      0.00     0.06       0.00    -0.28
    33  11.0838      0.00    -0.05       0.00    -0.09
    34  11.1492      0.00    -0.00       0.00    -0.10
    35  11.1492      0.00    -0.04       0.00     0.24
    36  11.1492      0.00     0.07       0.00    -0.01
    37  11.1493      0.00     0.00       0.00     0.24
    38  12.0612      0.00    -0.12       0.00     0.10
    39  12.0612      0.00     0.31       0.00     0.02
    40  12.1157      0.00     0.08       0.00    -0.07
    41  12.1157      0.00    -0.10       0.00     0.22
    42  12.1157      0.00     0.09       0.00     0.05
    43  12.1158      0.00    -0.07       0.00    -0.04
    44  12.2305      0.00    -0.05       0.00    -0.09
    45  12.2305      0.00     0.10       0.00     0.06
    46  12.2305      0.00     0.10       0.00    -0.20
    47  12.2306      0.00     0.08       0.00    -0.01
    48  12.2961      0.00    -0.08       0.00     0.16
    49  13.0437      0.00    -0.15       0.00    -0.09
    50  13.0440      0.00     0.11       0.00     0.34
    51  13.1287      0.00    -0.02       0.00     0.21
    52  13.1287      0.00     0.02       0.00    -0.12
    53  13.1287      0.00    -0.13       0.00    -0.19
    54  13.1287      0.00     0.13       0.00    -0.02
    55  13.2790      0.00     0.08       0.00     0.19
    56  13.2790      0.00     0.03       0.00     0.14
    57  13.2790      0.00     0.20       0.00     0.03
    58  13.2791      0.00    -0.25       0.00     0.20
    59  14.0816      0.00     0.13       0.00     0.17
    60  14.0817      0.00     0.13       0.00    -0.17
    61  14.0817      0.00     0.20       0.00     0.15
    62  15.0509      0.00    -0.21       0.00     0.04
    63  15.0510      0.00    -0.04       0.00     0.07
    64  15.0510      0.00     0.05       0.00    -0.03
    65  15.0510      0.00    -0.01       0.00     0.02
    66  16.0121      0.00    -0.08       0.00    -0.10
    67  16.1132      0.00    -0.37       0.00    -0.48

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.

524460    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.074    39.074    39.074
ecceobj         0.178     0.178     0.178
incobj          2.791     2.791     2.791
qmin           31.907    31.911    31.903
qmax           47.634    47.611    47.612
amean          39.457    39.457    39.457
amin           38.986    38.979    38.980
amax           39.980    39.989    39.976
emean           0.174     0.174     0.174
emin            0.156     0.156     0.156
emax            0.193     0.192     0.192
imean           1.983     1.984     1.983
imin            1.412     1.415     1.411
imax            2.552     2.552     2.553
excite_mean     0.178     0.178     0.178
fracstop        1.000     1.000     1.000
cjmean          3.016     3.016     3.016

libcent 0       180.1     179.9     180.1
libamp  0        99.6      99.6      99.9
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       184.3     184.2     184.3
kozaiamp        180.0     180.0     180.0