Orbit Fit and Astrometric record for 523680

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: 523680    
# Created Thu Feb 21 02:07:10 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   72 observations of   72
# Arc:   6.17y
# First observation: 2011/11/10
#  Last observation: 2018/01/11
# Chi-squared of fit:    25.51 DOF:  138 RMS:  0.11
# Min/Max residuals:    -0.24    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.528735E-05  2.358267E-02 -8.823840E-06 -1.511519E-02  2.427462E-02  3.571252E-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
    9.723558  109.332440    0.868060    0.079420   -0.463346  2455876.090986
# Heliocentric elements and errors
Epoch:              2455876.5000  =  2011/11/11
Mean Anomaly:            7.39722 +/-     0.000
Argument of Peri:      141.39710 +/-     0.000
Long of Asc Node:      302.87997 +/-     0.000
Inclination:            33.60804 +/-     0.000
Eccentricity:         0.44247130 +/-    0.0000
Semi-Major Axis:     73.20718051 +/-    0.0000
Time of Perihelion: 2451175.4502 +/-       0.0
Perihelion:          40.81510403 +/-    0.0000
Aphelion:           105.59925699 +/-    0.0000
Period (y)              626.3812 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.77540678 +/-    0.0000
Ecliptic Y           39.04589162 +/-    0.0000
Ecliptic Z            6.95727899 +/-    0.0000
Ecliptic XDOT        -0.00274037 +/-    0.0000
Ecliptic YDOT        -0.00022920 +/-    0.0000
Ecliptic ZDOT        -0.00161220 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.66760566 +/-    0.0000
Geocenter to KBO     41.19521494 +/-    0.0000
# Hcoef:  5.61

The following table shows the complete astrometric record for 523680. 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 (523680) followed by the observatory code and reference code for the source of the astrometry.

2011 11  10.59022  07 30 09.965  +31 39 44.73  22.0G 523680    F51  C~2kPh      
2011 12  16.55438  07 27 51.240  +31 45 06.22  21.7G 523680    F51  C~2kPh      
2012 10  18.60166  07 36 02.325  +30 33 25.07  21.9g 523680    F51  C~1vXA      
2012 10  18.61541  07 36 02.316  +30 33 25.59  21.7r 523680    F51  C~1vXA      
2012 10  18.62760  07 36 02.333  +30 33 25.16  21.8r 523680    F51  C~1vXA      
2012 10  31.54234  07 35 58.376  +30 34 31.15  21.9G 523680    F51  C~2kPh      
2012 11  28.49664  07 34 48.896  +30 38 13.65  21.6G 523680    F51  C~2kPh      
2012 12  23.54593  07 32 50.298  +30 41 38.39  22.0g 523680    F51  C~1vXA      
2012 12  23.55450  07 32 50.251  +30 41 38.42  21.6w 523680    F51  C~1vXA      
2012 12  23.56894  07 32 50.175  +30 41 38.46  21.8w 523680    F51  C~1vXA      
2013 01  01.52010  07 31 59.997  +30 42 32.25  21.7G 523680    F51  C~2kPh      
2013 04  12.25294  07 26 08.094  +30 26 55.13  22.4G 523680    F51  C~2kPh      
2013 12  04.48029  07 39 54.310  +29 34 15.06  21.5G 523680    F51  C~2kPh      
2013 12  26.38498  07 38 07.897  +29 37 07.23  21.8w 523680    F51  C~1vXA      
2013 12  26.40040  07 38 07.818  +29 37 07.42  21.7w 523680    F51  C~1vXA      
2013 12  26.41585  07 38 07.746  +29 37 07.66  21.9w 523680    F51  C~1vXA      
2014 01  24.30416  07 35 23.834  +29 39 04.44  21.6w 523680    F51  C~1vXA      
2014 01  24.31540  07 35 23.768  +29 39 04.53  21.6w 523680    F51  C~1vXA      
2014 01  24.32665  07 35 23.714  +29 39 04.51  21.6w 523680    F51  C~1vXA      
2014 01  24.33791  07 35 23.652  +29 39 04.42  21.7w 523680    F51  C~1vXA      
2014 02  20.23646  07 33 08.421  +29 37 33.86  21.9w 523680    F51  C~1vXA      
2014 02  20.24770  07 33 08.367  +29 37 33.99  21.7w 523680    F51  C~1vXA      
2014 02  20.25895  07 33 08.302  +29 37 34.12  21.9w 523680    F51  C~1vXA      
2014 02  20.27218  07 33 08.264  +29 37 33.98  21.8w 523680    F51  C~1vXA      
2014 02  27.37058  07 32 40.324  +29 36 32.60  22.0G 523680    F51  C~2kPh      
2014 03  18.34244  07 31 48.101  +29 32 32.93  22.5G 523680    F51  C~2kPh      
2014 10  01.59828  07 46 08.877  +28 25 41.04  21.7G 523680    F51  C~2kPh      
2014 12  26.52800  07 43 30.885  +28 31 58.35  21.4w 523680    F51  C~1vXA      
2014 12  26.54036  07 43 30.816  +28 31 58.22  21.7w 523680    F51  C~1vXA      
2014 12  26.55274  07 43 30.741  +28 31 58.20  21.7w 523680    F51  C~1vXA      
2014 12  26.56510  07 43 30.681  +28 31 58.40  21.5w 523680    F51  C~1vXA      
2015 01  20.33292  07 41 12.441  +28 34 09.18  21.8w 523680    F51  C~1vXA      
2015 01  20.34483  07 41 12.366  +28 34 09.22  21.7w 523680    F51  C~1vXA      
2015 01  20.35678  07 41 12.296  +28 34 09.25  21.8w 523680    F51  C~1vXA      
2015 01  20.36875  07 41 12.228  +28 34 09.31  21.7w 523680    F51  C~1vXA      
2015 01  22.29765  07 41 01.376  +28 34 14.47  21.9w 523680    F51  C~1vXA      
2015 01  22.30952  07 41 01.310  +28 34 14.39  21.9w 523680    F51  C~1vXA      
2015 01  22.32143  07 41 01.243  +28 34 14.49  21.7w 523680    F51  C~1vXA      
2015 01  22.33333  07 41 01.179  +28 34 14.46  21.6w 523680    F51  C~1vXA      
2015 01  28.29740  07 40 28.091  +28 34 24.54  21.6r 523680    F51  C~1vXA      
2015 01  28.30566  07 40 28.045  +28 34 24.16  21.6r 523680    F51  C~1vXA      
2015 01  28.30971  07 40 28.034  +28 34 24.37  21.8r 523680    F51  C~1vXA      
2015 01  28.31787  07 40 27.976  +28 34 24.34  21.4r 523680    F51  C~1vXA      
2015 01  28.32196  07 40 27.965  +28 34 24.47  21.8r 523680    F51  C~1vXA      
2015 01  28.33009  07 40 27.923  +28 34 24.58  21.9r 523680    F51  C~1vXA      
2015 01  28.33417  07 40 27.887  +28 34 24.60  21.8r 523680    F51  C~1vXA      
2015 10  28.57423  07 51 43.434  +27 20 43.60  22.4G 523680    F51  C~2kPh      
2015 12  02.62339  07 50 32.936  +27 23 30.84  21.7G 523680    F51  C~2kPh      
2016 01  07.37520  07 47 41.718  +27 27 54.74  21.9G 523680    F51  C~2kPh      
2016 02  09.31182  07 44 42.524  +27 29 34.12  22.5G 523680    F51  C~2kPh      
2016 03  31.27296  07 42 07.146  +27 22 32.67  21.9G 523680    F51  C~2kPh      
2016 11  10.53395  07 56 28.682  +26 16 17.87  21.7G 523680    F51  C~2kPh      
2016 12  25.52699  07 53 50.971  +26 20 59.34  21.7G 523680    F51  C~2kPh      
2017 01  08.50956  07 52 36.953  +26 22 38.87  21.3G 523680    F51  C~2kPh      
2017 01  16.47633  07 51 53.063  +26 23 26.35  21.9G 523680    F51  C~2kPh      
2017 01  18.31285  07 51 42.929  +26 23 35.93  21.8G 523680    F51  C~2kPh      
2017 01  28.44113  07 50 47.528  +26 24 18.14  21.4G 523680    F51  C~2kPh      
2017 01  28.45343  07 50 47.454  +26 24 18.17  21.7G 523680    F51  C~2kPh      
2017 01  28.46576  07 50 47.387  +26 24 18.19  21.7G 523680    F51  C~2kPh      
2017 01  28.47813  07 50 47.319  +26 24 18.32  21.8G 523680    F51  C~2kPh      
2017 04  10.27786  07 47 08.456  +26 16 35.60  21.6G 523680    F51  C~2kPh      
2017 10  28.62298  08 01 27.989  +25 11 09.36  21.9G 523680    F51  C~2kPh      
2017 10  28.63066  08 01 27.981  +25 11 09.37  22.1G 523680    F51  C~2kPh      
2017 11  21.56409  08 00 57.619  +25 11 43.93  21.8G 523680    F51  C~2kPh      
2017 12  23.42488  07 58 58.050  +25 15 05.49  21.8G 523680    F51  C~2kPh      
2017 12  23.43777  07 58 57.987  +25 15 05.58  21.9G 523680    F51  C~2kPh      
2017 12  23.45074  07 58 57.925  +25 15 05.73  21.8G 523680    F51  C~2kPh      
2018 01  08.37942  07 57 36.100  +25 17 03.69  21.8G 523680    F51  C~2kPh      
2018 01  11.55275  07 57 18.944  +25 17 25.55  21.8G 523680    F51  C~2kPh      
2018 01  11.56437  07 57 18.893  +25 17 25.62  21.7G 523680    F51  C~2kPh      
2018 01  11.57603  07 57 18.832  +25 17 25.63  21.7G 523680    F51  C~2kPh      
2018 01  11.58766  07 57 18.757  +25 17 25.78  21.8G 523680    F51  C~2kPh      

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    -0.02       0.00    -0.21
  2   0.0985      0.00    -0.08       0.00    -0.18
  3   0.9391      0.00     0.06       0.00    -0.02
  4   0.9392      0.00    -0.15       0.00     0.45
  5   0.9392      0.00     0.05       0.00    -0.03
  6   0.9745      0.00    -0.13       0.00     0.05
  7   1.0511      0.00    -0.06       0.00    -0.11
  8   1.1197      0.00    -0.01       0.00     0.03
  9   1.1197      0.00    -0.01       0.00     0.00
 10   1.1197      0.00     0.05       0.00    -0.05
 11   1.1442      0.00    -0.04       0.00    -0.20
 12   1.4200      0.00    -0.22       0.00    -0.20
 13   2.0668      0.00    -0.12       0.00    -0.04
 14   2.1267      0.00    -0.01       0.00     0.04
 15   2.1268      0.00     0.08       0.00     0.12
 16   2.1268      0.00     0.27       0.00     0.25
 17   2.2059      0.00    -0.06       0.00    -0.03
 18   2.2060      0.00    -0.09       0.00     0.05
 19   2.2060      0.00     0.06       0.00     0.02
 20   2.2060      0.00     0.09       0.00    -0.08
 21   2.2797      0.00     0.11       0.00    -0.24
 22   2.2797      0.00     0.03       0.00    -0.03
 23   2.2797      0.00    -0.22       0.00     0.19
 24   2.2798      0.00     0.06       0.00     0.14
 25   2.2992      0.00    -0.13       0.00     0.07
 26   2.3511      0.00    -0.02       0.00     0.13
 27   2.8912      0.00    -0.06       0.00    -0.16
 28   3.1265      0.00     0.09       0.00     0.26
 29   3.1265      0.00     0.05       0.00     0.04
 30   3.1265      0.00    -0.07       0.00    -0.07
 31   3.1266      0.00     0.03       0.00     0.05
 32   3.1944      0.00     0.11       0.00    -0.03
 33   3.1944      0.00     0.01       0.00    -0.02
 34   3.1944      0.00    -0.01       0.00    -0.03
 35   3.1945      0.00    -0.01       0.00    -0.01
 36   3.1997      0.00     0.01       0.00     0.07
 37   3.1998      0.00     0.03       0.00    -0.04
 38   3.1998      0.00     0.04       0.00     0.03
 39   3.1998      0.00     0.10       0.00    -0.03
 40   3.2162      0.00    -0.04       0.00     0.18
 41   3.2162      0.00    -0.04       0.00    -0.21
 42   3.2162      0.00     0.13       0.00    -0.00
 43   3.2162      0.00    -0.06       0.00    -0.04
 44   3.2162      0.00     0.11       0.00     0.08
 45   3.2163      0.00     0.16       0.00     0.19
 46   3.2163      0.00    -0.04       0.00     0.20
 47   3.9644      0.00    -0.02       0.00    -0.17
 48   4.0603      0.00     0.08       0.00     0.05
 49   4.1582      0.00    -0.12       0.00     0.07
 50   4.2484      0.00     0.01       0.00    -0.00
 51   4.3879      0.00    -0.03       0.00    -0.20
 52   5.0019      0.00    -0.10       0.00     0.00
 53   5.1251      0.00     0.05       0.00    -0.10
 54   5.1634      0.00    -0.10       0.00    -0.04
 55   5.1852      0.00    -0.06       0.00    -0.07
 56   5.1902      0.00     0.02       0.00    -0.09
 57   5.2179      0.00     0.14       0.00    -0.02
 58   5.2180      0.00     0.04       0.00    -0.03
 59   5.2180      0.00     0.05       0.00    -0.04
 60   5.2180      0.00     0.04       0.00     0.05
 61   5.4146      0.00    -0.20       0.00     0.01
 62   5.9659      0.00     0.01       0.00     0.02
 63   5.9659      0.00    -0.09       0.00     0.04
 64   6.0314      0.00    -0.05       0.00    -0.10
 65   6.1186      0.00    -0.02       0.00     0.00
 66   6.1187      0.00    -0.02       0.00    -0.01
 67   6.1187      0.00     0.00       0.00     0.04
 68   6.1623      0.00    -0.04       0.00    -0.02
 69   6.1710      0.00    -0.12       0.00     0.03
 70   6.1710      0.00     0.08       0.00     0.03
 71   6.1711      0.00     0.12       0.00    -0.04
 72   6.1711      0.00    -0.05       0.00     0.04

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.

523680    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        73.582    73.582    73.582
ecceobj         0.445     0.445     0.445
incobj         33.606    33.606    33.606
qmin           39.751    39.751    39.750
qmax          107.230   107.229   107.229
amean          72.674    72.674    72.674
amin           71.796    71.797    71.796
amax           73.855    73.854    73.860
emean           0.440     0.440     0.440
emin            0.425     0.425     0.425
emax            0.453     0.453     0.453
imean          34.998    34.998    34.998
imin           34.594    34.594    34.594
imax           35.453    35.455    35.452
excite_mean     0.723     0.723     0.723
fracstop        1.000     1.000     1.000
cjmean          2.699     2.699     2.699

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       191.8     191.8     191.8
kozaiamp         52.4      52.4      52.4