Orbit Fit and Astrometric record for 523698

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: 523698    
# Created Wed Feb 20 02:07:36 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   78 observations of   78
# Arc:   8.13y
# First observation: 2010/02/24
#  Last observation: 2018/04/12
# Chi-squared of fit:    42.13 DOF:  150 RMS:  0.13
# Min/Max residuals:    -0.37    0.55
# Exact a, adot, b, bdot, g, gdot:
  2.038258E-05  3.968707E-02  1.033831E-06  1.308000E-03  2.943108E-02 -2.027281E-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
   -4.495886 -173.223592    0.514481   -0.066717   -0.848275  2455252.035116
# Heliocentric elements and errors
Epoch:              2455252.5000  =  2010/02/25
Mean Anomaly:          358.03832 +/-     0.000
Argument of Peri:      302.67905 +/-     0.000
Long of Asc Node:      253.27477 +/-     0.000
Inclination:             4.75129 +/-     0.000
Eccentricity:         0.60779656 +/-    0.0000
Semi-Major Axis:     88.27712481 +/-    0.0000
Time of Perihelion: 2456903.3094 +/-       0.0
Perihelion:          34.62259216 +/-    0.0000
Aphelion:           141.93165747 +/-    0.0000
Period (y)              829.4314 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -34.53818265 +/-    0.0000
Ecliptic Y           -3.58968399 +/-    0.0000
Ecliptic Z           -2.66338175 +/-    0.0000
Ecliptic XDOT         0.00061532 +/-    0.0000
Ecliptic YDOT        -0.00363929 +/-    0.0000
Ecliptic ZDOT         0.00013603 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.82626648 +/-    0.0000
Geocenter to KBO     33.97775134 +/-    0.0000
# Hcoef:  6.65

The following table shows the complete astrometric record for 523698. 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 (523698) followed by the observatory code and reference code for the source of the astrometry.

2010 02  24.53435  12 17 43.889  -06 49 03.67  22.3G 523698    F51  C~2kQ2      
2011 03  11.50419  12 25 10.239  -07 32 36.80  22.4G 523698    F51  C~2kQ2      
2011 03  13.45063  12 25 00.794  -07 31 39.72  22.2G 523698    F51  C~2kQ2      
2011 03  13.46274  12 25 00.738  -07 31 39.54  22.1G 523698    F51  C~2kQ2      
2011 03  31.37116  12 23 30.590  -07 22 06.72  21.6G 523698    F51  C~2kQ2      
2012 02  27.47747  12 34 42.902  -08 27 27.31  21.9w 523698    F51  C~1vXN      
2012 02  27.49226  12 34 42.837  -08 27 27.02  22.1w 523698    F51  C~1vXN      
2012 02  27.50704  12 34 42.777  -08 27 26.72  21.6w 523698    F51  C~1vXN      
2012 02  27.52179  12 34 42.717  -08 27 26.38  22.1w 523698    F51  C~1vXN      
2012 02  28.49480  12 34 38.671  -08 27 04.42  21.5G 523698    F51  C~2kQ2      
2012 03  02.47346  12 34 25.900  -08 25 53.72  22.1G 523698    F51  C~2kQ2      
2012 04  14.34248  12 30 55.124  -08 03 40.87  21.8w 523698    F51  C~1vXN      
2012 04  14.35734  12 30 55.044  -08 03 40.41  21.9w 523698    F51  C~1vXN      
2012 04  14.37217  12 30 54.977  -08 03 39.84  22.0w 523698    F51  C~1vXN      
2012 04  14.38700  12 30 54.900  -08 03 39.38  22.0w 523698    F51  C~1vXN      
2013 03  13.47040  12 42 17.948  -09 10 13.32  22.0w 523698    F51  C~1vXN      
2013 03  13.48464  12 42 17.858  -09 10 13.03  22.0w 523698    F51  C~1vXN      
2013 03  13.49886  12 42 17.791  -09 10 12.95  22.0w 523698    F51  C~1vXN      
2013 03  13.51312  12 42 17.737  -09 10 12.51  22.0w 523698    F51  C~1vXO      
2013 04  08.42925  12 40 07.345  -08 56 33.52  21.3G 523698    F51  C~2kQ2      
2013 04  19.41515  12 39 13.148  -08 50 22.69  21.4i 523698    F51  C~1vXO      
2013 04  19.42741  12 39 13.116  -08 50 22.32  21.6i 523698    F51  C~1vXO      
2013 04  19.43946  12 39 13.034  -08 50 22.02  21.6r 523698    F51  C~1vXO      
2013 04  19.45036  12 39 13.003  -08 50 21.40  21.7r 523698    F51  C~1vXO      
2013 04  30.39867  12 38 23.470  -08 44 23.16  21.7G 523698    F51  C~2kQ2      
2014 04  05.38232  12 49 09.782  -09 47 08.46  21.9w 523698    F51  C~1vXO      
2014 04  05.39353  12 49 09.727  -09 47 08.17  21.8w 523698    F51  C~1vXO      
2014 04  05.40476  12 49 09.663  -09 47 07.77  21.9w 523698    F51  C~1vXO      
2014 04  05.41598  12 49 09.612  -09 47 07.49  21.7w 523698    F51  C~1vXO      
2014 05  25.28585  12 45 38.720  -09 21 30.77  21.9w 523698    F51  C~1vXO      
2014 05  25.29793  12 45 38.695  -09 21 30.49  22.1w 523698    F51  C~1vXO      
2014 05  25.31003  12 45 38.662  -09 21 30.16  22.4w 523698    F51  C~1vXO      
2014 05  25.32212  12 45 38.631  -09 21 29.85  22.0w 523698    F51  C~1vXO      
2014 06  02.27027  12 45 20.582  -09 18 37.77  22.1w 523698    F51  C~1vXO      
2014 06  02.28238  12 45 20.546  -09 18 37.56  22.0w 523698    F51  C~1vXO      
2014 06  02.29447  12 45 20.514  -09 18 36.96  22.5w 523698    F51  C~1vXO      
2014 06  02.30658  12 45 20.504  -09 18 36.89  22.1w 523698    F51  C~1vXO      
2015 01  24.60311  13 02 06.261  -10 56 16.38  22.1w 523698    F51  C~1vXO      
2015 01  24.61533  13 02 06.263  -10 56 16.27  22.5w 523698    F51  C~1vXO      
2015 01  24.62749  13 02 06.253  -10 56 16.25  22.2w 523698    F51  C~1vXO      
2015 01  24.63970  13 02 06.245  -10 56 16.32  22.1w 523698    F51  C~1vXO      
2015 03  20.48581  12 59 20.144  -10 43 22.08  21.8w 523698    F51  C~1vXO      
2015 03  20.49638  12 59 20.100  -10 43 21.71  21.8w 523698    F51  C~1vXO      
2015 03  20.50699  12 59 20.052  -10 43 21.45  21.9w 523698    F51  C~1vXO      
2015 03  20.54366  12 59 19.866  -10 43 20.42  22.0w 523698    F51  C~1vXO      
2015 03  21.43630  12 59 15.516  -10 42 55.01  22.0w 523698    F51  C~1vXO      
2015 03  21.44685  12 59 15.459  -10 42 54.64  22.0w 523698    F51  C~1vXO      
2015 03  21.45738  12 59 15.415  -10 42 54.23  22.0w 523698    F51  C~1vXO      
2015 03  21.46791  12 59 15.359  -10 42 53.97  22.0w 523698    F51  C~1vXO      
2015 04  25.39152  12 56 19.431  -10 24 12.09  21.1G 523698    F51  C~2kQ2      
2015 05  17.32019  12 54 47.428  -10 12 56.91  22.8G 523698    F51  C~2kQ2      
2015 05  19.28621  12 54 40.682  -10 12 03.20  22.6G 523698    F51  C~2kQ2      
2016 02  09.63204  13 10 30.034  -11 41 41.02  21.8G 523698    F51  C~2kQ2      
2016 02  09.64003  13 10 30.014  -11 41 41.00  22.0G 523698    F51  C~2kQ2      
2016 02  09.64804  13 10 30.001  -11 41 40.79  22.5G 523698    F51  C~2kQ2      
2016 02  09.65600  13 10 29.985  -11 41 40.86  22.1G 523698    F51  C~2kQ2      
2016 03  04.53187  13 09 18.142  -11 36 17.09  22.1G 523698    F51  C~2kQ2      
2016 03  04.54425  13 09 18.082  -11 36 16.84  22.5G 523698    F51  C~2kQ2      
2016 03  04.55654  13 09 18.031  -11 36 16.65  22.3G 523698    F51  C~2kQ2      
2016 03  04.56890  13 09 17.968  -11 36 16.48  22.1G 523698    F51  C~2kQ2      
2016 03  12.49593  13 08 44.507  -11 33 18.08  22.1G 523698    F51  C~2kQ2      
2016 03  12.50862  13 08 44.458  -11 33 17.77  22.1G 523698    F51  C~2kQ2      
2016 03  12.52129  13 08 44.406  -11 33 17.43  22.1G 523698    F51  C~2kQ2      
2016 03  14.45996  13 08 35.663  -11 32 29.30  20.6G 523698    F51  C~2kQ2      
2016 04  15.42681  13 05 55.829  -11 16 26.83  21.6G 523698    F51  C~2kQ2      
2016 05  01.39367  13 04 37.890  -11 07 44.32  22.5G 523698    F51  C~2kQ2      
2016 05  01.40534  13 04 37.834  -11 07 44.00  22.4G 523698    F51  C~2kQ2      
2017 03  21.44002  13 16 56.820  -12 15 15.81  22.2G 523698    F51  C~2kQ2      
2017 03  21.45224  13 16 56.741  -12 15 15.69  22.1G 523698    F51  C~2kQ2      
2017 03  21.46426  13 16 56.700  -12 15 15.23  22.1G 523698    F51  C~2kQ2      
2017 03  21.47621  13 16 56.643  -12 15 14.96  22.1G 523698    F51  C~2kQ2      
2017 04  27.36139  13 13 50.241  -11 56 13.50  21.7G 523698    F51  C~2kQ2      
2017 04  27.37172  13 13 50.188  -11 56 13.13  21.9G 523698    F51  C~2kQ2      
2017 04  27.38207  13 13 50.134  -11 56 12.76  21.9G 523698    F51  C~2kQ2      
2017 04  27.39238  13 13 50.092  -11 56 12.40  21.8G 523698    F51  C~2kQ2      
2017 05  16.30796  13 12 26.243  -11 46 28.16  21.9G 523698    F51  C~2kQ2      
2018 03  17.52130  13 26 09.715  -13 01 30.95  22.1G 523698    F51  C~2kQ2      
2018 04  12.42023  13 24 01.701  -12 49 19.81  20.8G 523698    F51  C~2kQ2      

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     0.15       0.00    -0.14
  2   1.0403      0.00     0.05       0.00    -0.26
  3   1.0456      0.00    -0.07       0.00    -0.12
  4   1.0457      0.00    -0.00       0.00    -0.30
  5   1.0947      0.00    -0.12       0.00     0.07
  6   2.0067      0.00    -0.05       0.00     0.07
  7   2.0067      0.00    -0.09       0.00     0.03
  8   2.0068      0.00    -0.05       0.00    -0.00
  9   2.0068      0.00    -0.01       0.00     0.01
 10   2.0095      0.00     0.12       0.00    -0.13
 11   2.0176      0.00    -0.06       0.00     0.00
 12   2.1350      0.00    -0.03       0.00    -0.03
 13   2.1350      0.00    -0.13       0.00    -0.07
 14   2.1351      0.00    -0.03       0.00    -0.00
 15   2.1351      0.00    -0.09       0.00    -0.05
 16   3.0471      0.00     0.16       0.00     0.55
 17   3.0471      0.00    -0.15       0.00     0.44
 18   3.0471      0.00    -0.11       0.00     0.12
 19   3.0472      0.00     0.12       0.00     0.16
 20   3.1181      0.00    -0.37       0.00     0.16
 21   3.1482      0.00    -0.16       0.00    -0.05
 22   3.1482      0.00     0.26       0.00    -0.09
 23   3.1483      0.00    -0.09       0.00    -0.19
 24   3.1483      0.00     0.24       0.00     0.06
 25   3.1783      0.00     0.10       0.00    -0.15
 26   4.1091      0.00     0.07       0.00     0.13
 27   4.1091      0.00     0.12       0.00     0.05
 28   4.1092      0.00     0.05       0.00     0.08
 29   4.1092      0.00     0.16       0.00    -0.01
 30   4.2457      0.00    -0.06       0.00     0.04
 31   4.2458      0.00     0.06       0.00     0.04
 32   4.2458      0.00     0.06       0.00     0.08
 33   4.2458      0.00     0.09       0.00     0.10
 34   4.2676      0.00     0.07       0.00    -0.20
 35   4.2676      0.00    -0.11       0.00    -0.23
 36   4.2677      0.00    -0.22       0.00     0.14
 37   4.2677      0.00    -0.01       0.00    -0.03
 38   4.9146      0.00    -0.14       0.00     0.00
 39   4.9147      0.00     0.00       0.00     0.15
 40   4.9147      0.00    -0.04       0.00     0.22
 41   4.9147      0.00    -0.05       0.00     0.19
 42   5.0649      0.00     0.09       0.00    -0.00
 43   5.0649      0.00     0.22       0.00     0.06
 44   5.0649      0.00     0.29       0.00     0.02
 45   5.0650      0.00     0.23       0.00     0.01
 46   5.0675      0.00     0.16       0.00    -0.09
 47   5.0675      0.00     0.09       0.00    -0.02
 48   5.0676      0.00     0.22       0.00     0.08
 49   5.0676      0.00     0.17       0.00     0.04
 50   5.1632      0.00    -0.11       0.00    -0.04
 51   5.2232      0.00    -0.05       0.00    -0.03
 52   5.2286      0.00    -0.24       0.00    -0.15
 53   5.9578      0.00     0.04       0.00    -0.10
 54   5.9579      0.00    -0.02       0.00    -0.13
 55   5.9579      0.00     0.03       0.00     0.03
 56   5.9579      0.00     0.03       0.00    -0.09
 57   6.0233      0.00     0.09       0.00     0.02
 58   6.0233      0.00    -0.05       0.00     0.02
 59   6.0233      0.00    -0.06       0.00    -0.04
 60   6.0234      0.00    -0.25       0.00    -0.13
 61   6.0451      0.00    -0.18       0.00    -0.06
 62   6.0451      0.00    -0.05       0.00    -0.06
 63   6.0451      0.00     0.04       0.00    -0.03
 64   6.0504      0.00    -0.18       0.00    -0.01
 65   6.1380      0.00     0.06       0.00    -0.01
 66   6.1817      0.00     0.01       0.00     0.16
 67   6.1817      0.00    -0.01       0.00     0.10
 68   7.0689      0.00    -0.00       0.00     0.05
 69   7.0689      0.00    -0.29       0.00    -0.15
 70   7.0689      0.00    -0.03       0.00    -0.01
 71   7.0690      0.00    -0.01       0.00    -0.06
 72   7.1700      0.00    -0.02       0.00    -0.10
 73   7.1700      0.00    -0.04       0.00    -0.06
 74   7.1700      0.00    -0.08       0.00    -0.03
 75   7.1700      0.00     0.06       0.00     0.00
 76   7.2218      0.00    -0.01       0.00    -0.04
 77   8.0575      0.00     0.12       0.00     0.07
 78   8.1284      0.00    -0.10       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.

523698    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        87.935    87.934    87.936
ecceobj         0.606     0.606     0.606
incobj          4.753     4.753     4.753
qmin           33.701    33.790    33.853
qmax          169.643   156.051   156.838
amean          94.464    90.189    90.276
amin           87.625    87.445    87.700
amax          102.332    95.395    95.813
emean           0.631     0.614     0.615
emin            0.602     0.599     0.601
emax            0.659     0.636     0.638
imean           6.648     6.505     6.508
imin            5.827     5.822     5.566
imax            7.529     7.407     7.348
excite_mean     0.642     0.624     0.625
fracstop        1.000     1.000     1.000
cjmean          3.046     3.048     3.047

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       174.7     165.7     184.8
kozaiamp        180.0     180.0     180.0