Orbit Fit and Astrometric record for 523742

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: 523742    
# Created Tue Nov 20 02:07:18 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   78 observations of   78
# Arc:   6.18y
# First observation: 2011/12/16
#  Last observation: 2018/02/20
# Chi-squared of fit:    56.26 DOF:  150 RMS:  0.15
# Min/Max residuals:    -0.69    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.196452E-05  1.403378E-02 -1.708663E-06 -2.543465E-03  1.900014E-02  1.839117E-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
   11.170082  110.719822    0.437878    0.170430   -0.862978  2455912.068326
# Heliocentric elements and errors
Epoch:              2455912.5000  =  2011/12/17
Mean Anomaly:          144.67718 +/-     0.000
Argument of Peri:      334.44804 +/-     0.000
Long of Asc Node:      336.98711 +/-     0.000
Inclination:            14.92551 +/-     0.000
Eccentricity:         0.25184157 +/-    0.0000
Semi-Major Axis:     43.79817280 +/-    0.0000
Time of Perihelion: 2413364.4210 +/-       0.0
Perihelion:          32.76797234 +/-    0.0000
Aphelion:            54.82837326 +/-    0.0000
Period (y)              289.8626 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.16704168 +/-    0.0000
Ecliptic Y           49.27329336 +/-    0.0000
Ecliptic Z           10.19571528 +/-    0.0000
Ecliptic XDOT        -0.00201266 +/-    0.0000
Ecliptic YDOT        -0.00040111 +/-    0.0000
Ecliptic ZDOT        -0.00030814 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   53.49619771 +/-    0.0000
Geocenter to KBO     52.63115445 +/-    0.0000
# Hcoef:  4.75

The following table shows the complete astrometric record for 523742. 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 (523742) followed by the observatory code and reference code for the source of the astrometry.

2011 12  16.56756  07 37 38.320  +32 52 12.85  22.0G 523742    F51  C~2kQo      
2012 10  18.62701  07 43 16.714  +32 22 10.82  21.8G 523742    F51  C~2kQo      
2012 10  31.52924  07 43 13.979  +32 24 40.32  22.2G 523742    F51  C~2kQo      
2012 12  07.60393  07 41 48.830  +32 33 23.53  21.9G 523742    F51  C~2kQo      
2012 12  22.54229  07 40 48.841  +32 36 47.08  21.2G 523742    F51  C~2kQo      
2012 12  22.55633  07 40 48.810  +32 36 47.35  21.4G 523742    F51  C~2kQo      
2012 12  22.57037  07 40 48.772  +32 36 47.36  21.2G 523742    F51  C~2kQo      
2013 01  01.52079  07 40 03.973  +32 38 46.74  22.3G 523742    F51  C~2kQo      
2013 12  06.50788  07 45 30.072  +32 15 48.50  21.9w 523742    F51  C~1vXk      
2013 12  06.52013  07 45 30.039  +32 15 48.67  22.1w 523742    F51  C~1vXk      
2013 12  06.53240  07 45 29.988  +32 15 48.84  22.1w 523742    F51  C~1vXk      
2013 12  06.54462  07 45 29.942  +32 15 48.59  22.1w 523742    F51  C~1vXk      
2014 01  04.42891  07 43 29.623  +32 22 08.26  22.0w 523742    F51  C~1vXk      
2014 01  04.44206  07 43 29.556  +32 22 08.54  22.4w 523742    F51  C~1vXk      
2014 01  04.45520  07 43 29.497  +32 22 08.53  22.1w 523742    F51  C~1vXk      
2014 01  04.46835  07 43 29.429  +32 22 08.73  22.0w 523742    F51  C~1vXl      
2014 01  19.43249  07 42 19.043  +32 24 27.69  22.1G 523742    F51  C~2kQo      
2014 01  24.30878  07 41 56.259  +32 25 01.34  22.0w 523742    F51  C~1vXl      
2014 01  24.32002  07 41 56.193  +32 25 01.78  21.6w 523742    F51  C~1vXl      
2014 01  24.33129  07 41 56.143  +32 25 01.67  21.8w 523742    F51  C~1vXl      
2014 01  24.34254  07 41 56.089  +32 25 01.63  22.1w 523742    F51  C~1vXl      
2014 02  20.27748  07 40 02.714  +32 26 03.15  22.2G 523742    F51  C~2kQo      
2014 10  01.58836  07 49 57.993  +31 45 19.86  22.1w 523742    F51  C~1vXl      
2014 10  01.59367  07 49 58.024  +31 45 19.59  22.2w 523742    F51  C~1vXl      
2014 10  01.59894  07 49 58.008  +31 45 19.39  22.2w 523742    F51  C~1vXl      
2014 10  01.60423  07 49 58.026  +31 45 19.61  22.0w 523742    F51  C~1vXl      
2015 01  18.29973  07 46 01.946  +32 06 58.23  21.9w 523742    F51  C~1vXl      
2015 01  18.31298  07 46 01.879  +32 06 58.33  21.9w 523742    F51  C~1vXl      
2015 01  18.32630  07 46 01.813  +32 06 58.40  22.1w 523742    F51  C~1vXl      
2015 01  18.33963  07 46 01.749  +32 06 58.46  22.0w 523742    F51  C~1vXl      
2015 01  20.32895  07 45 52.417  +32 07 14.69  22.1w 523742    F51  C~1vXl      
2015 01  20.34087  07 45 52.361  +32 07 14.78  22.1w 523742    F51  C~1vXl      
2015 01  20.35279  07 45 52.305  +32 07 14.85  22.0w 523742    F51  C~1vXl      
2015 01  20.36472  07 45 52.242  +32 07 15.05  21.9w 523742    F51  C~1vXl      
2015 01  22.29302  07 45 43.236  +32 07 29.76  22.2w 523742    F51  C~1vXl      
2015 01  22.30491  07 45 43.187  +32 07 29.66  21.9w 523742    F51  C~1vXl      
2015 01  22.31680  07 45 43.128  +32 07 29.86  21.9w 523742    F51  C~1vXl      
2015 01  22.32872  07 45 43.077  +32 07 29.95  22.0w 523742    F51  C~1vXl      
2015 01  28.30632  07 45 15.492  +32 08 09.01  21.6r 523742    F51  C~1vXl      
2015 01  28.31856  07 45 15.417  +32 08 09.07  21.8r 523742    F51  C~1vXl      
2015 01  28.33075  07 45 15.379  +32 08 09.21  21.7r 523742    F51  C~1vXl      
2016 01  02.57085  07 50 50.062  +31 46 30.24  22.1G 523742    F51  C~2kQo      
2016 02  09.27256  07 47 58.295  +31 51 31.44  22.1G 523742    F51  C~2kQo      
2016 02  09.28674  07 47 58.230  +31 51 31.36  21.9G 523742    F51  C~2kQo      
2016 02  09.30103  07 47 58.175  +31 51 31.29  22.0G 523742    F51  C~2kQo      
2016 02  09.31526  07 47 58.100  +31 51 31.43  22.3G 523742    F51  C~2kQo      
2016 03  31.26478  07 45 42.577  +31 47 35.47  22.3G 523742    F51  C~2kQo      
2016 03  31.27558  07 45 42.562  +31 47 35.50  22.5G 523742    F51  C~2kQo      
2017 01  08.51087  07 53 51.070  +31 29 48.25  22.2G 523742    F51  C~2kQo      
2017 01  10.51130  07 53 41.833  +31 30 10.68  22.3G 523742    F51  C~2kQo      
2017 01  16.47842  07 53 14.157  +31 31 12.65  22.2G 523742    F51  C~2kQo      
2017 01  28.44248  07 52 18.931  +31 32 51.09  21.8G 523742    F51  C~2kQo      
2017 01  28.45482  07 52 18.874  +31 32 51.22  21.9G 523742    F51  C~2kQo      
2017 01  28.46714  07 52 18.826  +31 32 51.34  22.3G 523742    F51  C~2kQo      
2017 01  28.47952  07 52 18.763  +31 32 51.37  21.8G 523742    F51  C~2kQo      
2017 02  18.10640  07 50 51.89   +31 34 07.7   20.6R 523742    W67  C~2GtH      
2017 02  18.16009  07 50 51.69   +31 34 08.2   21.1R 523742    W67  C~2GtH      
2017 02  20.06050  07 50 44.62   +31 34 08.7   20.2R 523742    W67  C~2GtH      
2017 02  20.11149  07 50 44.40   +31 34 09.0   20.8R 523742    W67  C~2GtH      
2017 04  10.26782  07 49 08.718  +31 28 19.38  21.9G 523742    F51  C~2kQo      
2017 10  28.60630  08 00 42.110  +30 55 05.13  22.1G 523742    F51  C~2kQo      
2017 10  28.61393  08 00 42.111  +30 55 05.26  22.4G 523742    F51  C~2kQo      
2017 10  28.62160  08 00 42.097  +30 55 05.26  22.5G 523742    F51  C~2kQo      
2017 10  28.62930  08 00 42.089  +30 55 05.30  22.2G 523742    F51  C~2kQo      
2017 10  29.54664  08 00 41.932  +30 55 15.03  22.4G 523742    F51  C~2kQo      
2017 10  29.55831  08 00 41.935  +30 55 15.17  22.2G 523742    F51  C~2kQo      
2017 10  29.57002  08 00 41.931  +30 55 15.45  22.0G 523742    F51  C~2kQo      
2017 10  29.58169  08 00 41.941  +30 55 15.41  21.8G 523742    F51  C~2kQo      
2017 12  13.49010  07 59 10.249  +31 05 32.36  22.4G 523742    F51  C~2kQo      
2018 01  08.40216  07 57 22.049  +31 11 26.89  22.1G 523742    F51  C~2kQo      
2018 01  11.55082  07 57 07.633  +31 12 03.52  21.4G 523742    F51  C~2kQo      
2018 01  11.56244  07 57 07.579  +31 12 03.56  21.7G 523742    F51  C~2kQo      
2018 01  11.57407  07 57 07.537  +31 12 03.74  21.9G 523742    F51  C~2kQo      
2018 01  11.58572  07 57 07.457  +31 12 03.92  22.1G 523742    F51  C~2kQo      
2018 01  13.41774  07 56 59.027  +31 12 24.26  22.2G 523742    F51  C~2kQo      
2018 02  20.24054  07 54 14.386  +31 16 14.14  22.4G 523742    F51  C~2kQo      
2018 02  20.26560  07 54 14.310  +31 16 14.14  22.5G 523742    F51  C~2kQo      
2018 02  20.27812  07 54 14.260  +31 16 14.17  22.3G 523742    F51  C~2kQo      

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    -0.07
  2   0.8407      0.00    -0.15       0.00     0.11
  3   0.8760      0.00     0.02       0.00    -0.02
  4   0.9775      0.00    -0.11       0.00    -0.04
  5   1.0184      0.00    -0.69       0.00    -0.36
  6   1.0184      0.00    -0.22       0.00    -0.26
  7   1.0185      0.00     0.14       0.00    -0.43
  8   1.0457      0.00    -0.08       0.00     0.14
  9   1.9738      0.00     0.10       0.00     0.08
 10   1.9739      0.00     0.26       0.00     0.07
 11   1.9739      0.00     0.15       0.00     0.06
 12   1.9739      0.00     0.11       0.00    -0.37
 13   2.0530      0.00     0.06       0.00    -0.09
 14   2.0530      0.00    -0.01       0.00     0.04
 15   2.0531      0.00     0.04       0.00    -0.11
 16   2.0531      0.00    -0.05       0.00    -0.06
 17   2.0941      0.00     0.13       0.00    -0.20
 18   2.1074      0.00     0.17       0.00     0.01
 19   2.1075      0.00    -0.03       0.00     0.37
 20   2.1075      0.00     0.02       0.00     0.19
 21   2.1075      0.00     0.00       0.00     0.08
 22   2.1813      0.00    -0.07       0.00    -0.14
 23   2.7927      0.00    -0.20       0.00     0.39
 24   2.7927      0.00     0.11       0.00     0.09
 25   2.7927      0.00    -0.29       0.00    -0.14
 26   2.7927      0.00    -0.17       0.00     0.05
 27   3.0903      0.00     0.19       0.00     0.16
 28   3.0903      0.00     0.13       0.00     0.14
 29   3.0904      0.00     0.09       0.00     0.10
 30   3.0904      0.00     0.08       0.00     0.04
 31   3.0959      0.00     0.05       0.00     0.10
 32   3.0959      0.00     0.06       0.00     0.09
 33   3.0959      0.00     0.07       0.00     0.07
 34   3.0960      0.00    -0.02       0.00     0.17
 35   3.1012      0.00    -0.00       0.00     0.21
 36   3.1013      0.00     0.11       0.00     0.02
 37   3.1013      0.00     0.06       0.00     0.13
 38   3.1013      0.00     0.14       0.00     0.13
 39   3.1177      0.00     0.17       0.00     0.04
 40   3.1177      0.00    -0.10       0.00     0.02
 41   3.1178      0.00     0.17       0.00     0.09
 42   4.0466      0.00     0.10       0.00    -0.05
 43   4.1498      0.00     0.11       0.00     0.08
 44   4.1498      0.00     0.04       0.00    -0.05
 45   4.1499      0.00     0.13       0.00    -0.16
 46   4.1499      0.00    -0.08       0.00    -0.07
 47   4.2894      0.00    -0.10       0.00    -0.07
 48   4.2894      0.00    -0.20       0.00     0.09
 49   5.0649      0.00     0.07       0.00    -0.09
 50   5.0703      0.00    -0.15       0.00    -0.06
 51   5.0867      0.00     0.13       0.00     0.06
 52   5.1194      0.00    -0.03       0.00    -0.10
 53   5.1195      0.00    -0.03       0.00    -0.05
 54   5.1195      0.00     0.10       0.00    -0.01
 55   5.1195      0.00     0.01       0.00    -0.06
 56   5.1760      0.00    -0.28       0.00    -0.29
 57   5.1762      0.00    -0.19       0.00     0.18
 58   5.1814      0.00     0.02       0.00     0.04
 59   5.1815      0.00    -0.42       0.00     0.33
 60   5.3161      0.00     0.08       0.00     0.06
 61   5.8673      0.00     0.08       0.00     0.02
 62   5.8673      0.00     0.12       0.00     0.07
 63   5.8674      0.00    -0.07       0.00    -0.01
 64   5.8674      0.00    -0.16       0.00    -0.05
 65   5.8699      0.00    -0.08       0.00    -0.12
 66   5.8699      0.00     0.01       0.00    -0.11
 67   5.8700      0.00     0.00       0.00     0.04
 68   5.8700      0.00     0.20       0.00    -0.13
 69   5.9929      0.00     0.01       0.00    -0.00
 70   6.0639      0.00    -0.20       0.00    -0.10
 71   6.0725      0.00     0.06       0.00     0.04
 72   6.0725      0.00     0.07       0.00    -0.05
 73   6.0726      0.00     0.25       0.00     0.00
 74   6.0726      0.00    -0.14       0.00     0.05
 75   6.0776      0.00    -0.09       0.00     0.05
 76   6.1812      0.00    -0.19       0.00    -0.11
 77   6.1812      0.00     0.09       0.00    -0.13
 78   6.1813      0.00     0.05       0.00    -0.11

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.

523742    quality flag:3

Type:         7:4EII    7:4EII    7:4EII

axisobj        43.871    43.871    43.871
ecceobj         0.252     0.252     0.252
incobj         14.929    14.929    14.929
qmin           31.739    31.740    31.739
qmax           56.254    56.255    56.253
amean          43.725    43.725    43.725
amin           43.280    43.281    43.279
amax           44.225    44.220    44.223
emean           0.200     0.201     0.200
emin            0.066     0.066     0.067
emax            0.274     0.274     0.274
imean          17.782    17.756    17.800
imin           15.440    15.387    15.439
imax           20.962    20.960    20.955
excite_mean     0.372     0.372     0.372
fracstop        1.000     1.000     1.000
cjmean          2.931     2.931     2.931

libcent 0       179.8     178.5     180.4
libamp  0       119.8     121.0     119.3
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       114.1     114.1     114.0
kozaiamp        180.0     180.0     180.0