Orbit Fit and Astrometric record for 523748

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: 523748    
# Created Thu Apr 18 01:07:21 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   68 observations of   68
# Arc:   8.17y
# First observation: 2010/11/11
#  Last observation: 2019/01/11
# Chi-squared of fit:    58.30 DOF:  130 RMS:  0.16
# Min/Max residuals:    -0.50    0.53
# Exact a, adot, b, bdot, g, gdot:
  1.598615E-05  2.359684E-02 -1.862408E-06 -3.473664E-03  2.468382E-02 -1.857029E-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
  -16.767109   61.372781    0.210448   -0.278507   -0.924408  2455512.013686
# Heliocentric elements and errors
Epoch:              2455512.5000  =  2010/11/12
Mean Anomaly:          266.29311 +/-     0.000
Argument of Peri:      346.64013 +/-     0.000
Long of Asc Node:      178.67706 +/-     0.000
Inclination:            18.35331 +/-     0.000
Eccentricity:         0.08253537 +/-    0.0000
Semi-Major Axis:     40.94639092 +/-    0.0000
Time of Perihelion: 2480423.4854 +/-       0.0
Perihelion:          37.56686542 +/-    0.0000
Aphelion:            44.32591641 +/-    0.0000
Period (y)              262.0183 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.23552950 +/-    0.0000
Ecliptic Y           34.79399184 +/-    0.0000
Ecliptic Z          -11.68719173 +/-    0.0000
Ecliptic XDOT        -0.00244536 +/-    0.0000
Ecliptic YDOT         0.00098962 +/-    0.0000
Ecliptic ZDOT        -0.00030949 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.43937868 +/-    0.0000
Geocenter to KBO     40.51244340 +/-    0.0000
# Hcoef:  5.97

The following table shows the complete astrometric record for 523748. 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 (523748) followed by the observatory code and reference code for the source of the astrometry.

2010 11  11.51292  04 10 29.327  +03 59 33.80  22.2G 523748    F51  C~2kQv      
2010 11  18.34270  04 09 56.587  +03 57 18.98  22.4G 523748    F51  C~2kQv      
2011 02  02.22715  04 05 12.596  +03 57 28.69  22.7G 523748    F51  C~2kQv      
2011 09  14.56609  04 18 52.008  +04 29 05.51  22.5G 523748    F51  C~2kQv      
2011 10  25.56113  04 17 13.790  +04 10 06.12  21.3G 523748    F51  C~2kQv      
2011 12  01.33784  04 14 23.550  +03 57 47.63  21.9w 523748    F51  C~1vXm      
2011 12  01.35169  04 14 23.480  +03 57 47.49  22.1w 523748    F51  C~1vXm      
2011 12  01.36556  04 14 23.410  +03 57 47.35  22.0w 523748    F51  C~1vXm      
2011 12  01.37940  04 14 23.345  +03 57 47.10  22.1w 523748    F51  C~1vXm      
2012 10  20.54111  04 23 00.078  +04 15 33.52  22.2w 523748    F51  C~1vXm      
2012 10  20.55552  04 23 00.050  +04 15 33.02  22.2w 523748    F51  C~1vXm      
2012 10  20.56997  04 22 59.967  +04 15 32.52  22.1w 523748    F51  C~1vXm      
2012 10  20.58439  04 22 59.939  +04 15 32.60  21.9w 523748    F51  C~1vXm      
2012 11  08.55023  04 21 41.568  +04 07 49.79  21.7G 523748    F51  C~2kQv      
2013 11  28.40589  04 25 39.399  +04 05 26.43  22.1w 523748    F51  C~1vXm      
2013 11  28.41890  04 25 39.328  +04 05 26.33  21.8w 523748    F51  C~1vXm      
2013 11  28.43192  04 25 39.260  +04 05 25.97  21.8w 523748    F51  C~1vXm      
2013 11  28.44499  04 25 39.189  +04 05 25.99  21.9w 523748    F51  C~1vXm      
2013 12  11.39096  04 24 35.093  +04 03 09.13  22.9G 523748    F51  C~2kQv      
2014 09  18.61999  04 35 12.659  +04 37 12.15  22.2G 523748    F51  C~2kQv      
2014 10  02.54958  04 34 54.274  +04 30 41.48  21.9G 523748    F51  C~2kQv      
2014 10  02.57908  04 34 54.209  +04 30 40.52  22.1G 523748    F51  C~2kQv      
2014 10  02.59390  04 34 54.193  +04 30 40.20  22.7G 523748    F51  C~2kQv      
2014 10  26.55848  04 33 43.946  +04 19 48.63  22.3w 523748    F51  C~1vXm      
2014 10  26.57092  04 33 43.914  +04 19 48.90  22.3w 523748    F51  C~1vXm      
2014 10  26.58331  04 33 43.847  +04 19 48.19  21.8w 523748    F51  C~1vXm      
2014 10  26.59575  04 33 43.785  +04 19 47.77  22.1w 523748    F51  C~1vXm      
2014 11  11.51472  04 32 36.258  +04 13 39.24  22.9G 523748    F51  C~2kQv      
2014 11  21.46933  04 31 48.745  +04 10 33.24  21.9w 523748    F51  C~1vXm      
2014 11  21.48151  04 31 48.694  +04 10 32.84  22.1w 523748    F51  C~1vXm      
2014 11  21.49362  04 31 48.637  +04 10 32.69  21.9w 523748    F51  C~1vXm      
2014 11  21.50574  04 31 48.570  +04 10 32.44  22.0w 523748    F51  C~1vXm      
2014 11  23.49694  04 31 38.771  +04 09 59.97  21.6G 523748    F51  C~2kQv      
2014 12  15.35843  04 29 50.378  +04 06 03.72  21.4G 523748    F51  C~2kQv      
2015 01  09.25981  04 28 02.858  +04 06 32.36  21.9w 523748    F51  C~1vXm      
2015 01  09.27288  04 28 02.817  +04 06 32.36  21.9w 523748    F51  C~1vXm      
2015 01  09.28597  04 28 02.776  +04 06 32.60  22.4w 523748    F51  C~1vXm      
2015 01  09.29910  04 28 02.725  +04 06 32.66  22.1w 523748    F51  C~1vXm      
2015 10  21.53993  04 39 36.460  +04 25 08.00  22.3G 523748    F51  C~2kQv      
2015 10  21.55186  04 39 36.429  +04 25 07.64  22.3G 523748    F51  C~2kQv      
2015 10  21.56374  04 39 36.372  +04 25 07.13  22.4G 523748    F51  C~2kQv      
2015 10  21.57558  04 39 36.335  +04 25 06.82  21.9G 523748    F51  C~2kQv      
2015 11  02.55195  04 38 51.149  +04 20 07.87  22.3G 523748    F51  C~2kQv      
2015 11  02.57573  04 38 51.051  +04 20 07.26  22.2G 523748    F51  C~2kQv      
2015 11  02.58758  04 38 50.998  +04 20 06.82  22.8G 523748    F51  C~2kQv      
2015 11  03.52816  04 38 47.067  +04 19 45.04  22.1G 523748    F51  C~2kQv      
2015 12  02.43196  04 36 30.238  +04 11 05.92  22.2G 523748    F51  C~2kQv      
2016 10  13.56409  04 45 32.545  +04 31 14.26  22.2G 523748    F51  C~2kQv      
2016 11  01.53440  04 44 27.382  +04 23 08.08  20.9G 523748    F51  C~2kQv      
2017 01  21.27502  04 38 26.374  +04 14 57.99  21.9G 523748    F51  C~2kQv      
2017 10  20.57060  04 50 47.462  +04 30 56.63  22.9G 523748    F51  C~2kQv      
2017 11  17.45011  04 48 54.311  +04 20 27.02  21.5G 523748    F51  C~2kQv      
2017 11  17.46152  04 48 54.266  +04 20 26.88  21.4G 523748    F51  C~2kQv      
2017 11  17.47299  04 48 54.196  +04 20 26.28  22.0G 523748    F51  C~2kQv      
2017 11  17.48448  04 48 54.163  +04 20 26.30  22.0G 523748    F51  C~2kQv      
2017 12  23.31395  04 45 56.561  +04 14 35.58  21.8G 523748    F51  C~2kQv      
2017 12  23.32531  04 45 56.507  +04 14 35.73  21.8G 523748    F51  C~2kQv      
2017 12  23.33677  04 45 56.458  +04 14 35.59  22.0G 523748    F51  C~2kQv      
2017 12  23.34829  04 45 56.401  +04 14 35.58  21.9G 523748    F51  C~2kQv      
2018 01  06.36902  04 44 54.094  +04 15 15.53  22.1G 523748    F51  C~2kQv      
2018 01  06.38119  04 44 54.045  +04 15 15.59  22.4G 523748    F51  C~2kQv      
2018 01  06.39325  04 44 54.001  +04 15 15.74  22.1G 523748    F51  C~2kQv      
2018 01  13.28909  04 44 27.319  +04 16 12.21  21.8G 523748    F51  C~2kQv      
2018 01  13.30245  04 44 27.254  +04 16 12.22  20.9G 523748    F51  C~2kQv      
2018 01  13.33038  04 44 27.163  +04 16 12.60  21.4G 523748    F51  C~2kQv      
2019 01  11.129194 04 50 12.23   +04 18 33.9   22.1V 523748    H21  C~2u4S      
2019 01  11.138543 04 50 12.17   +04 18 33.8   22.0V 523748    H21  C~2u4S      
2019 01  11.158461 04 50 12.13   +04 18 34.6   22.4V 523748    H21  C~2u4S      

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    -0.16       0.00    -0.11
  2   0.0187      0.00    -0.06       0.00    -0.15
  3   0.2265      0.00    -0.08       0.00     0.05
  4   0.8407      0.00     0.53       0.00     0.11
  5   0.9529      0.00     0.12       0.00    -0.21
  6   1.0536      0.00    -0.05       0.00     0.20
  7   1.0536      0.00    -0.06       0.00     0.24
  8   1.0537      0.00    -0.06       0.00     0.27
  9   1.0537      0.00     0.00       0.00     0.20
 10   1.9412      0.00    -0.17       0.00    -0.04
 11   1.9413      0.00     0.20       0.00    -0.16
 12   1.9413      0.00    -0.25       0.00    -0.27
 13   1.9413      0.00     0.13       0.00     0.19
 14   1.9933      0.00    -0.05       0.00    -0.16
 15   3.0469      0.00     0.10       0.00    -0.08
 16   3.0470      0.00     0.03       0.00    -0.00
 17   3.0470      0.00    -0.00       0.00    -0.18
 18   3.0470      0.00    -0.07       0.00     0.02
 19   3.0825      0.00     0.14       0.00     0.01
 20   3.8524      0.00     0.06       0.00    -0.14
 21   3.8906      0.00    -0.06       0.00     0.04
 22   3.8907      0.00    -0.13       0.00    -0.08
 23   3.8907      0.00     0.08       0.00     0.01
 24   3.9563      0.00    -0.09       0.00    -0.12
 25   3.9564      0.00     0.15       0.00     0.47
 26   3.9564      0.00    -0.13       0.00     0.07
 27   3.9564      0.00    -0.34       0.00    -0.04
 28   4.0000      0.00    -0.10       0.00    -0.50
 29   4.0273      0.00    -0.08       0.00     0.24
 30   4.0273      0.00     0.06       0.00     0.05
 31   4.0273      0.00     0.12       0.00     0.10
 32   4.0274      0.00     0.02       0.00     0.05
 33   4.0328      0.00     0.08       0.00     0.10
 34   4.0927      0.00     0.08       0.00    -0.19
 35   4.1608      0.00    -0.20       0.00     0.03
 36   4.1609      0.00    -0.09       0.00    -0.07
 37   4.1609      0.00     0.02       0.00     0.07
 38   4.1609      0.00    -0.01       0.00     0.03
 39   4.9419      0.00    -0.10       0.00     0.13
 40   4.9419      0.00     0.05       0.00     0.08
 41   4.9420      0.00    -0.19       0.00    -0.12
 42   4.9420      0.00    -0.13       0.00    -0.12
 43   4.9748      0.00     0.11       0.00    -0.02
 44   4.9748      0.00     0.15       0.00    -0.08
 45   4.9749      0.00     0.10       0.00    -0.24
 46   4.9775      0.00    -0.13       0.00    -0.07
 47   5.0566      0.00     0.05       0.00     0.18
 48   5.9221      0.00    -0.04       0.00     0.02
 49   5.9740      0.00     0.33       0.00    -0.03
 50   6.1951      0.00     0.33       0.00     0.04
 51   6.9406      0.00    -0.20       0.00     0.17
 52   7.0169      0.00    -0.08       0.00     0.29
 53   7.0170      0.00     0.08       0.00     0.35
 54   7.0170      0.00    -0.14       0.00    -0.04
 55   7.0170      0.00     0.20       0.00     0.18
 56   7.1151      0.00    -0.09       0.00    -0.04
 57   7.1152      0.00    -0.08       0.00     0.12
 58   7.1152      0.00     0.02       0.00    -0.01
 59   7.1152      0.00    -0.00       0.00    -0.01
 60   7.1536      0.00    -0.11       0.00    -0.09
 61   7.1536      0.00    -0.09       0.00    -0.11
 62   7.1537      0.00     0.01       0.00    -0.04
 63   7.1726      0.00     0.08       0.00    -0.22
 64   7.1726      0.00    -0.15       0.00    -0.34
 65   7.1727      0.00     0.05       0.00    -0.24
 66   8.1660      0.00     0.14       0.00     0.00
 67   8.1660      0.00    -0.20       0.00    -0.18
 68   8.1660      0.00     0.38       0.00     0.44

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.

523748    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.128    41.128    41.128
ecceobj         0.081     0.081     0.081
incobj         18.337    18.337    18.337
qmin           36.409    36.454    36.405
qmax           45.527    45.517    45.548
amean          40.873    40.872    40.873
amin           40.555    40.553    40.543
amax           41.209    41.204    41.209
emean           0.090     0.090     0.090
emin            0.076     0.076     0.075
emax            0.106     0.105     0.106
imean          18.447    18.446    18.447
imin           17.689    17.691    17.690
imax           19.224    19.221    19.222
excite_mean     0.329     0.329     0.329
fracstop        1.000     1.000     1.000
cjmean          2.938     2.938     2.938

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       173.0     172.9     172.9
kozaiamp        179.9     180.0     180.0