Orbit Fit and Astrometric record for 531017

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: 531017    
# Created Sat Nov 27 02:08:00 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    102 observations of    102
# Arc:  18.26y
# First observation: 2001/12/15
#  Last observation: 2020/03/21
# Chi-squared of fit:    67.61 DOF:    198 RMS:  0.14
# Min/Max residuals:    -0.62    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.585224E-05  2.244585E-02 -1.132631E-07 -7.438490E-04  2.287005E-02 -7.315594E-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
  -14.449610  131.039615    0.721034   -0.165165   -0.640601  2452258.952964
# Heliocentric elements and errors
Epoch:              2452258.5000  =  2001/12/15
Mean Anomaly:          320.79012 +/-     0.000
Argument of Peri:      340.13935 +/-     0.000
Long of Asc Node:      228.30779 +/-     0.000
Inclination:            14.37565 +/-     0.000
Eccentricity:         0.37569493 +/-    0.0000
Semi-Major Axis:     55.66426599 +/-    0.0000
Time of Perihelion: 2468780.2551 +/-       0.0
Perihelion:          34.75148367 +/-    0.0000
Aphelion:            76.57704830 +/-    0.0000
Period (y)              415.3105 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.69040271 +/-    0.0000
Ecliptic Y           32.91435400 +/-    0.0000
Ecliptic Z          -10.91070473 +/-    0.0000
Ecliptic XDOT        -0.00146390 +/-    0.0000
Ecliptic YDOT        -0.00242080 +/-    0.0000
Ecliptic ZDOT         0.00013251 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.37541007 +/-    0.0000
Geocenter to KBO     43.72554936 +/-    0.0000
# Hcoef:  6.09

The following table shows the complete astrometric record for 531017. 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 (531017) followed by the observatory code and reference code for the source of the astrometry.

2001 12  15.452221 08 38 16.81   +03 31 53.4         531017    645  C~2VVH      
2001 12  15.453050 08 38 16.81   +03 31 53.4         531017    645  C~2VVH      
2006 11  18.437195 09 04 34.93   +01 38 51.9   22.3V 531017    645  C~2VVH      
2006 11  18.438024 09 04 34.95   +01 38 52.0   21.8V 531017    645  C~2VVH      
2006 11  18.440512 09 04 34.93   +01 38 51.9   23.6V 531017    645  C~2VVH      
2010 03  12.35847  09 14 12.205  +00 38 07.42  22.1G 531017    F51  C~2qb1      
2010 11  23.63102  09 26 08.850  -00 04 23.04  22.0G 531017    F51  C~2qb1      
2011 02  23.44455  09 20 58.529  +00 03 31.44  22.3G 531017    F51  C~2qb1      
2011 12  08.58577  09 31 32.996  -00 35 02.41  21.8G 531017    F51  C~2qb1      
2011 12  08.59732  09 31 32.965  -00 35 02.83  22.0G 531017    F51  C~2qb1      
2012 01  25.41375  09 28 56.882  -00 34 07.16  22.4w 531017    F51  C~1w3p      
2012 01  25.42802  09 28 56.821  -00 34 06.81  22.3w 531017    F51  C~1w3p      
2012 01  25.44233  09 28 56.756  -00 34 06.56  22.5w 531017    F51  C~1w3p      
2012 01  25.45668  09 28 56.690  -00 34 06.46  22.4w 531017    F51  C~1w3p      
2012 02  12.47603  09 27 32.470  -00 28 09.87  21.5i 531017    F51  C~1w3p      
2012 02  12.48862  09 27 32.414  -00 28 09.57  21.9i 531017    F51  C~1w3p      
2014 01  11.48746  09 41 34.724  -01 31 41.60  21.5i 531017    F51  C~1w3p      
2014 01  31.46944  09 40 08.543  -01 27 25.38  22.3w 531017    F51  C~1w3p      
2014 01  31.48240  09 40 08.495  -01 27 25.04  21.9w 531017    F51  C~1w3p      
2014 01  31.49536  09 40 08.424  -01 27 24.47  22.2w 531017    F51  C~1w3p      
2014 01  31.50830  09 40 08.354  -01 27 24.39  22.1w 531017    F51  C~1w3p      
2014 02  24.34699  09 38 15.951  -01 17 56.61  21.9w 531017    F51  C~1w3p      
2014 02  24.35854  09 38 15.901  -01 17 56.29  21.8w 531017    F51  C~1w3p      
2014 02  24.37010  09 38 15.842  -01 17 55.92  22.1w 531017    F51  C~1w3p      
2014 02  24.38168  09 38 15.789  -01 17 55.70  21.9w 531017    F51  C~1w3p      
2014 04  17.25318  09 35 23.972  -00 51 17.99  22.1G 531017    F51  C~2qb1      
2014 11  30.66437  09 49 06.421  -01 54 41.25  21.5G 531017    F51  C~2qb1      
2014 12  16.63493  09 48 48.654  -01 58 51.29  21.6G 531017    F51  C~2qb1      
2015 01  19.48405  09 47 02.345  -01 58 39.60  22.1G 531017    F51  C~2qb1      
2015 01  19.49539  09 47 02.293  -01 58 39.77  22.5G 531017    F51  C~2qb1      
2015 01  19.50687  09 47 02.229  -01 58 39.60  22.2G 531017    F51  C~2qb1      
2015 01  19.51819  09 47 02.180  -01 58 39.42  21.9G 531017    F51  C~2qb1      
2015 02  18.41985  09 44 44.250  -01 48 59.10  22.2G 531017    F51  C~2qb1      
2015 02  18.43281  09 44 44.182  -01 48 58.88  22.4G 531017    F51  C~2qb1      
2015 04  16.25630  09 41 19.966  -01 19 38.81  22.2G 531017    F51  C~2qb1      
2015 04  16.26824  09 41 19.953  -01 19 38.37  22.4G 531017    F51  C~2qb1      
2015 04  16.28018  09 41 19.935  -01 19 37.95  21.9G 531017    F51  C~2qb1      
2015 04  16.29206  09 41 19.894  -01 19 37.88  23.0G 531017    F51  C~2qb1      
2015 04  18.25421  09 41 16.789  -01 18 40.58  22.0G 531017    F51  C~2qb1      
2015 04  18.26651  09 41 16.756  -01 18 40.21  22.3G 531017    F51  C~2qb1      
2015 04  18.27884  09 41 16.755  -01 18 39.88  22.1G 531017    F51  C~2qb1      
2015 04  18.29119  09 41 16.726  -01 18 39.41  21.9G 531017    F51  C~2qb1      
2015 10  23.60177  09 54 02.812  -02 03 13.62  22.4G 531017    F51  C~2qb1      
2015 10  25.64462  09 54 09.525  -02 04 29.83  21.7G 531017    F51  C~2qb1      
2015 12  06.57297  09 55 02.605  -02 24 29.79  21.9G 531017    F51  C~2qb1      
2015 12  06.58472  09 55 02.606  -02 24 29.95  21.8G 531017    F51  C~2qb1      
2015 12  08.60217  09 55 00.892  -02 25 05.07  22.0G 531017    F51  C~2qb1      
2015 12  08.61471  09 55 00.878  -02 25 05.23  22.3G 531017    F51  C~2qb1      
2015 12  08.62730  09 55 00.866  -02 25 05.53  22.3G 531017    F51  C~2qb1      
2015 12  08.63989  09 55 00.854  -02 25 05.71  22.2G 531017    F51  C~2qb1      
2015 12  24.53337  09 54 34.232  -02 28 10.96  21.8G 531017    F51  C~2qb1      
2015 12  24.54539  09 54 34.234  -02 28 11.28  22.2G 531017    F51  C~2qb1      
2015 12  24.55743  09 54 34.177  -02 28 11.15  21.9G 531017    F51  C~2qb1      
2015 12  24.56947  09 54 34.163  -02 28 11.30  22.1G 531017    F51  C~2qb1      
2016 01  11.52390  09 53 39.149  -02 28 19.65  22.2G 531017    F51  C~2qb1      
2016 01  11.53590  09 53 39.116  -02 28 19.52  22.1G 531017    F51  C~2qb1      
2016 01  11.54788  09 53 39.065  -02 28 19.36  22.2G 531017    F51  C~2qb1      
2016 01  11.55988  09 53 39.022  -02 28 19.46  22.0G 531017    F51  C~2qb1      
2016 01  12.48617  09 53 35.585  -02 28 13.91  22.3G 531017    F51  C~2qb1      
2016 01  12.49741  09 53 35.540  -02 28 13.89  22.0G 531017    F51  C~2qb1      
2016 01  12.50861  09 53 35.495  -02 28 13.79  22.2G 531017    F51  C~2qb1      
2016 01  12.51987  09 53 35.449  -02 28 13.66  22.2G 531017    F51  C~2qb1      
2016 01  21.51047  09 52 59.518  -02 26 52.18  22.0G 531017    F51  C~2qb1      
2016 02  09.44395  09 51 33.473  -02 21 23.21  22.0G 531017    F51  C~2qb1      
2016 02  09.45712  09 51 33.418  -02 21 23.05  22.3G 531017    F51  C~2qb1      
2016 02  09.47032  09 51 33.349  -02 21 22.65  21.7G 531017    F51  C~2qb1      
2016 02  09.48350  09 51 33.297  -02 21 22.23  21.7G 531017    F51  C~2qb1      
2016 03  31.30782  09 47 56.964  -01 55 51.13  22.3G 531017    F51  C~2qb1      
2016 03  31.30976  09 47 56.953  -01 55 51.01  21.6G 531017    F51  C~2qb1      
2016 03  31.31861  09 47 56.931  -01 55 50.86  22.0G 531017    F51  C~2qb1      
2016 03  31.32056  09 47 56.920  -01 55 50.83  21.9G 531017    F51  C~2qb1      
2016 03  31.32904  09 47 56.891  -01 55 50.43  21.8G 531017    F51  C~2qb1      
2016 03  31.33100  09 47 56.889  -01 55 50.47  21.6G 531017    F51  C~2qb1      
2016 03  31.33948  09 47 56.866  -01 55 50.11  22.4G 531017    F51  C~2qb1      
2016 03  31.34140  09 47 56.852  -01 55 50.06  21.6G 531017    F51  C~2qb1      
2016 04  23.30158  09 47 08.332  -01 44 03.58  22.5G 531017    F51  C~2qb1      
2017 01  20.55805  09 59 10.628  -02 55 48.68  22.0G 531017    F51  C~2qb1      
2017 01  20.57059  09 59 10.574  -02 55 48.40  21.8G 531017    F51  C~2qb1      
2017 01  20.58311  09 59 10.529  -02 55 48.20  21.5G 531017    F51  C~2qb1      
2017 01  20.59560  09 59 10.475  -02 55 48.20  22.8G 531017    F51  C~2qb1      
2017 01  31.42306  09 58 23.018  -02 53 09.27  22.1G 531017    F51  C~2qb1      
2017 01  31.43542  09 58 22.957  -02 53 09.02  22.0G 531017    F51  C~2qb1      
2017 01  31.44780  09 58 22.900  -02 53 08.85  22.3G 531017    F51  C~2qb1      
2017 01  31.46014  09 58 22.840  -02 53 08.58  22.0G 531017    F51  C~2qb1      
2017 02  25.43095  09 56 24.166  -02 43 07.18  21.4G 531017    F51  C~2qb1      
2017 02  25.44335  09 56 24.120  -02 43 06.60  21.3G 531017    F51  C~2qb1      
2017 02  25.45576  09 56 24.050  -02 43 06.30  21.2G 531017    F51  C~2qb1      
2017 02  25.46816  09 56 24.002  -02 43 05.84  21.1G 531017    F51  C~2qb1      
2018 01  16.51068  10 05 43.327  -03 25 41.27  22.0G 531017    F51  C~2qb1      
2018 01  16.52335  10 05 43.275  -03 25 41.16  22.1G 531017    F51  C~2qb1      
2018 01  16.53603  10 05 43.227  -03 25 41.02  22.3G 531017    F51  C~2qb1      
2018 01  16.54868  10 05 43.180  -03 25 40.99  22.2G 531017    F51  C~2qb1      
2018 03  19.30106  10 01 03.521  -03 00 49.63  21.9G 531017    F51  C~2qb1      
2018 03  19.31308  10 01 03.435  -03 00 49.16  21.2G 531017    F51  C~2qb1      
2018 03  19.32511  10 01 03.412  -03 00 48.96  21.9G 531017    F51  C~2qb1      
2018 03  19.33729  10 01 03.362  -03 00 48.46  21.9G 531017    F51  C~2qb1      
2020 01  27.41367  10 17 48.716  -04 22 54.62  22.0w 531017    F51  C~3i3J      
2020 01  27.43675  10 17 48.609  -04 22 54.61  21.7w 531017    F51  C~3i3J      
2020 01  27.44830  10 17 48.569  -04 22 54.42  21.8w 531017    F51  C~3i3J      
2020 03  21.36154  10 13 38.830  -03 58 34.21  21.8w 531017    F51  C~3pJk      
2020 03  21.37409  10 13 38.792  -03 58 32.80  21.8w 531017    F51  C~3pJk      
2020 03  21.38666  10 13 38.737  -03 58 32.88  21.7w 531017    F51  C~3pJk      

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    -0.09       0.00    -0.06
     2   0.0000      0.00    -0.05       0.00    -0.06
     3   4.9254      0.00    -0.16       0.00    -0.11
     4   4.9254      0.00     0.15       0.00     0.01
     5   4.9254      0.00    -0.14       0.00    -0.04
     6   8.2379      0.00     0.41       0.00    -0.00
     7   8.9396      0.00     0.13       0.00     0.19
     8   9.1909      0.00    -0.13       0.00    -0.17
     9   9.9798      0.00    -0.01       0.00     0.25
    10   9.9799      0.00    -0.20       0.00    -0.02
    11  10.1108      0.00     0.07       0.00    -0.07
    12  10.1108      0.00     0.14       0.00     0.06
    13  10.1109      0.00     0.15       0.00     0.09
    14  10.1109      0.00     0.15       0.00    -0.03
    15  10.1602      0.00     0.00       0.00     0.26
    16  10.1603      0.00     0.07       0.00     0.26
    17  12.0740      0.00     0.13       0.00    -0.06
    18  12.1287      0.00    -0.26       0.00    -0.07
    19  12.1288      0.00    -0.06       0.00     0.03
    20  12.1288      0.00    -0.21       0.00     0.36
    21  12.1288      0.00    -0.34       0.00     0.20
    22  12.1941      0.00     0.08       0.00    -0.09
    23  12.1941      0.00     0.15       0.00    -0.10
    24  12.1942      0.00     0.08       0.00    -0.06
    25  12.1942      0.00     0.10       0.00    -0.16
    26  12.3362      0.00    -0.11       0.00    -0.35
    27  12.9588      0.00    -0.01       0.00    -0.17
    28  13.0026      0.00     0.04       0.00    -0.12
    29  13.0952      0.00     0.18       0.00     0.19
    30  13.0953      0.00     0.12       0.00    -0.11
    31  13.0953      0.00    -0.10       0.00    -0.07
    32  13.0953      0.00    -0.10       0.00    -0.01
    33  13.1772      0.00     0.25       0.00     0.12
    34  13.1772      0.00     0.17       0.00    -0.00
    35  13.3328      0.00    -0.20       0.00    -0.13
    36  13.3328      0.00    -0.08       0.00    -0.04
    37  13.3329      0.00    -0.03       0.00     0.03
    38  13.3329      0.00    -0.33       0.00    -0.25
    39  13.3383      0.00     0.02       0.00    -0.03
    40  13.3383      0.00    -0.18       0.00    -0.01
    41  13.3383      0.00     0.10       0.00    -0.04
    42  13.3384      0.00    -0.04       0.00     0.08
    43  13.8539      0.00    -0.11       0.00     0.35
    44  13.8595      0.00    -0.06       0.00    -0.05
    45  13.9743      0.00    -0.02       0.00    -0.02
    46  13.9744      0.00     0.14       0.00     0.03
    47  13.9799      0.00     0.04       0.00    -0.03
    48  13.9799      0.00     0.02       0.00     0.02
    49  13.9799      0.00     0.04       0.00    -0.07
    50  13.9800      0.00     0.05       0.00    -0.04
    51  14.0235      0.00    -0.11       0.00     0.14
    52  14.0235      0.00     0.36       0.00    -0.10
    53  14.0236      0.00    -0.05       0.00     0.11
    54  14.0236      0.00     0.19       0.00     0.04
    55  14.0727      0.00    -0.13       0.00    -0.11
    56  14.0728      0.00     0.05       0.00    -0.05
    57  14.0728      0.00    -0.03       0.00     0.04
    58  14.0728      0.00     0.00       0.00    -0.12
    59  14.0754      0.00     0.03       0.00    -0.00
    60  14.0754      0.00    -0.00       0.00    -0.05
    61  14.0754      0.00    -0.03       0.00    -0.02
    62  14.0755      0.00    -0.07       0.00     0.04
    63  14.1001      0.00    -0.19       0.00    -0.08
    64  14.1519      0.00    -0.11       0.00     0.06
    65  14.1520      0.00     0.02       0.00    -0.07
    66  14.1520      0.00    -0.05       0.00     0.03
    67  14.1520      0.00     0.13       0.00     0.15
    68  14.2912      0.00     0.05       0.00     0.08
    69  14.2912      0.00    -0.02       0.00     0.13
    70  14.2912      0.00     0.06       0.00    -0.01
    71  14.2912      0.00    -0.01       0.00    -0.04
    72  14.2912      0.00    -0.05       0.00     0.08
    73  14.2912      0.00     0.01       0.00    -0.02
    74  14.2913      0.00     0.06       0.00     0.06
    75  14.2913      0.00    -0.06       0.00     0.04
    76  14.3541      0.00    -0.10       0.00    -0.28
    77  15.0995      0.00    -0.04       0.00    -0.10
    78  15.0996      0.00    -0.05       0.00     0.03
    79  15.0996      0.00     0.07       0.00     0.09
    80  15.0996      0.00     0.05       0.00    -0.05
    81  15.1293      0.00     0.05       0.00    -0.04
    82  15.1293      0.00    -0.00       0.00    -0.01
    83  15.1294      0.00     0.01       0.00    -0.06
    84  15.1294      0.00    -0.03       0.00    -0.02
    85  15.1978      0.00    -0.09       0.00     0.07
    86  15.1978      0.00     0.11       0.00     0.29
    87  15.1978      0.00    -0.04       0.00     0.23
    88  15.1979      0.00     0.14       0.00     0.32
    89  16.0878      0.00    -0.10       0.00    -0.03
    90  16.0878      0.00    -0.13       0.00    -0.02
    91  16.0878      0.00    -0.10       0.00     0.02
    92  16.0879      0.00    -0.06       0.00    -0.05
    93  16.2569      0.00     0.02       0.00    -0.06
    94  16.2570      0.00    -0.53       0.00     0.00
    95  16.2570      0.00    -0.13       0.00    -0.21
    96  16.2570      0.00    -0.12       0.00    -0.12
    97  18.1163      0.00     0.01       0.00     0.34
    98  18.1163      0.00    -0.09       0.00     0.03
    99  18.1163      0.00     0.06       0.00     0.06
   100  18.2640      0.00     0.08       0.00    -0.62
   101  18.2640      0.00     0.30       0.00     0.35
   102  18.2640      0.00     0.26       0.00    -0.17

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.

531017    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        55.190    55.190    55.191
ecceobj         0.372     0.372     0.372
incobj         14.374    14.374    14.374
qmin           33.896    33.685    33.813
qmax           78.671    78.728    78.580
amean          55.463    55.463    55.463
amin           54.561    54.564    54.575
amax           56.583    56.516    56.524
emean           0.377     0.378     0.378
emin            0.365     0.364     0.365
emax            0.390     0.395     0.392
imean          15.253    15.188    15.213
imin           14.948    14.599    14.834
imax           15.556    15.578    15.527
excite_mean     0.460     0.460     0.460
fracstop        1.000     1.000     1.000
cjmean          2.968     2.968     2.968

libcent 0       179.3     178.7     179.2
libamp  0       155.7     154.5     156.0
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       159.3     152.7     155.7
kozaiamp        180.0     180.0     179.9