Orbit Fit and Astrometric record for 523750

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: 523750    
# Created Tue Nov 20 02:07:18 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   73 observations of   73
# Arc:   7.10y
# First observation: 2010/10/14
#  Last observation: 2017/11/18
# Chi-squared of fit:    93.12 DOF:  140 RMS:  0.20
# Min/Max residuals:    -0.84    1.32
# Exact a, adot, b, bdot, g, gdot:
  1.435386E-05  1.976328E-02  1.673815E-06  7.751540E-04  2.173489E-02 -2.188013E-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
   11.026125   36.414143    0.262618    0.183345   -0.940950  2455484.051406
# Heliocentric elements and errors
Epoch:              2455484.5000  =  2010/10/15
Mean Anomaly:          276.85072 +/-     0.000
Argument of Peri:      174.53844 +/-     0.000
Long of Asc Node:      317.99286 +/-     0.000
Inclination:            11.03348 +/-     0.000
Eccentricity:         0.11402339 +/-    0.0000
Semi-Major Axis:     46.98323857 +/-    0.0000
Time of Perihelion: 2482653.2001 +/-       0.0
Perihelion:          41.62605026 +/-    0.0000
Aphelion:            52.34042688 +/-    0.0000
Period (y)              322.0495 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.27327550 +/-    0.0000
Ecliptic Y           27.16461239 +/-    0.0000
Ecliptic Z            8.79958152 +/-    0.0000
Ecliptic XDOT        -0.00171047 +/-    0.0000
Ecliptic YDOT         0.00183810 +/-    0.0000
Ecliptic ZDOT         0.00004312 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.95373246 +/-    0.0000
Geocenter to KBO     46.00908359 +/-    0.0000
# Hcoef:  5.00

The following table shows the complete astrometric record for 523750. 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 (523750) followed by the observatory code and reference code for the source of the astrometry.

2010 10  14.55064  02 00 32.048  +24 01 54.36  21.9G 523750    F51  C~2jho      
2010 10  14.56219  02 00 32.008  +24 01 54.22  21.9G 523750    F51  C~2jho      
2011 09  11.41982  02 07 17.082  +24 33 57.77  21.7G 523750    F51  C~2jho      
2011 09  23.57916  02 06 36.550  +24 32 48.60  21.3G 523750    F51  C~2jho      
2011 11  20.30118  02 02 25.832  +24 14 06.41  21.7G 523750    F51  C~2jho      
2012 10  23.48970  02 09 05.902  +24 50 52.26  21.5w 523750    F51  C~2FaO      
2012 10  23.50482  02 09 05.837  +24 50 52.13  21.3w 523750    F51  C~2FaO      
2012 10  23.50548  02 09 05.832  +24 50 52.02  21.5w 523750    F51  C~2FaO      
2012 10  23.51994  02 09 05.759  +24 50 51.75  21.6w 523750    F51  C~2FaO      
2012 10  23.52060  02 09 05.761  +24 50 51.79  21.3w 523750    F51  C~2FaO      
2012 10  23.53511  02 09 05.691  +24 50 51.41  21.3w 523750    F51  C~2FaO      
2012 10  23.53577  02 09 05.693  +24 50 51.37  21.4w 523750    F51  C~2FaO      
2012 10  24.52734  02 09 01.118  +24 50 30.81  21.3G 523750    F51  C~2jho      
2012 10  24.54106  02 09 01.059  +24 50 30.73  21.9G 523750    F51  C~2jho      
2012 11  04.34363  02 08 11.251  +24 46 29.74  21.3G 523750    F51  C~2jho      
2012 11  04.35574  02 08 11.198  +24 46 29.24  21.5G 523750    F51  C~2jho      
2012 11  05.44632  02 08 06.216  +24 46 03.29  21.7G 523750    F51  C~2jho      
2012 11  05.45852  02 08 06.141  +24 46 02.97  21.8G 523750    F51  C~2jho      
2013 08  20.53859  02 17 21.276  +25 22 47.08  21.8G 523750    F51  C~2jho      
2013 08  23.51819  02 17 17.467  +25 23 12.72  21.3G 523750    F51  C~2jho      
2013 11  27.24443  02 11 15.231  +25 02 33.77  21.8G 523750    F51  C~2jho      
2013 11  27.25789  02 11 15.176  +25 02 33.36  21.2G 523750    F51  C~2jho      
2013 12  07.22745  02 10 38.705  +24 58 13.34  21.7G 523750    F51  C~2jho      
2014 10  28.47966  02 18 13.485  +25 39 47.76  21.3w 523750    F51  C~1vXn      
2014 10  28.49269  02 18 13.424  +25 39 47.16  21.6w 523750    F51  C~1vXn      
2014 10  28.50572  02 18 13.362  +25 39 46.96  21.4w 523750    F51  C~1vXn      
2014 10  28.51882  02 18 13.306  +25 39 46.79  21.4w 523750    F51  C~1vXn      
2014 11  25.25706  02 16 08.090  +25 28 44.50  21.4w 523750    F51  C~1vXn      
2014 11  25.26899  02 16 08.060  +25 28 44.08  21.4w 523750    F51  C~1vXn      
2014 11  25.28084  02 16 08.009  +25 28 43.83  21.4w 523750    F51  C~1vXn      
2014 11  25.29331  02 16 07.953  +25 28 43.44  21.5w 523750    F51  C~1vXn      
2014 11  27.40123  02 15 59.373  +25 27 48.80  21.7w 523750    F51  C~1vXn      
2014 11  27.41347  02 15 59.329  +25 27 48.46  21.8w 523750    F51  C~1vXn      
2014 11  27.42572  02 15 59.277  +25 27 48.12  21.4w 523750    F51  C~1vXn      
2014 11  27.43799  02 15 59.237  +25 27 47.97  21.5w 523750    F51  C~1vXn      
2014 12  27.31230  02 14 26.638  +25 15 20.34  21.3i 523750    F51  C~1vXn      
2014 12  27.32390  02 14 26.617  +25 15 19.80  21.4i 523750    F51  C~1vXn      
2014 12  27.33549  02 14 26.570  +25 15 19.93  21.3i 523750    F51  C~1vXn      
2014 12  27.34711  02 14 26.517  +25 15 19.68  21.4i 523750    F51  C~1vXn      
2015 08  03.56892  02 26 53.139  +26 06 27.90  21.6G 523750    F51  C~2jho      
2015 08  03.58088  02 26 53.138  +26 06 28.00  21.7G 523750    F51  C~2jho      
2015 08  03.59286  02 26 53.142  +26 06 28.28  21.9G 523750    F51  C~2jho      
2015 08  03.60488  02 26 53.152  +26 06 28.49  21.9G 523750    F51  C~2jho      
2015 10  24.36845  02 23 22.582  +26 05 43.38  21.2G 523750    F51  C~2jho      
2015 10  24.38055  02 23 22.545  +26 05 43.32  21.3G 523750    F51  C~2jho      
2015 10  24.39264  02 23 22.490  +26 05 43.11  21.4G 523750    F51  C~2jho      
2015 10  24.40477  02 23 22.420  +26 05 42.77  21.1G 523750    F51  C~2jho      
2016 09  29.89994  02 29 57.62   +26 34 55.8   20.8R 523750    461  C~21SX      
2016 09  29.93652  02 29 57.48   +26 34 55.4   21.0R 523750    461  C~21SX      
2016 10  29.86815  02 27 44.73   +26 27 41.6   21.1R 523750    104  C~20r4      
2016 10  30.02484  02 27 43.99   +26 27 38.5   20.8R 523750    104  C~20r4      
2016 10  30.84324  02 27 40.10   +26 27 21.6   20.8R 523750    104  C~20r4      
2016 10  30.94578  02 27 39.67   +26 27 18.8   20.8R 523750    104  C~20r4      
2017 01  13.29029  02 23 31.463  +25 58 13.73  21.2G 523750    F51  C~2jho      
2017 01  13.30135  02 23 31.492  +25 58 13.35  22.1G 523750    F51  C~2jho      
2017 01  13.31236  02 23 31.469  +25 58 12.63  22.2G 523750    F51  C~2jho      
2017 01  13.32334  02 23 31.475  +25 58 12.42  21.9G 523750    F51  C~2jho      
2017 09  02.47468  02 36 12.737  +26 58 21.98  21.8G 523750    F51  C~2jho      
2017 09  02.48502  02 36 12.725  +26 58 22.03  21.5G 523750    F51  C~2jho      
2017 09  02.49535  02 36 12.699  +26 58 22.05  21.6G 523750    F51  C~2jho      
2017 09  02.50573  02 36 12.669  +26 58 22.09  21.7G 523750    F51  C~2jho      
2017 09  06.47798  02 36 04.616  +26 58 41.79  21.9G 523750    F51  C~2jho      
2017 09  06.49138  02 36 04.568  +26 58 41.90  21.7G 523750    F51  C~2jho      
2017 09  06.50512  02 36 04.534  +26 58 41.90  22.0G 523750    F51  C~2jho      
2017 09  06.51848  02 36 04.496  +26 58 41.93  21.9G 523750    F51  C~2jho      
2017 11  10.33159  02 31 45.765  +26 47 13.60  21.6G 523750    F51  C~2jho      
2017 11  10.34193  02 31 45.723  +26 47 13.41  21.5G 523750    F51  C~2jho      
2017 11  10.35231  02 31 45.672  +26 47 13.12  21.3G 523750    F51  C~2jho      
2017 11  10.36279  02 31 45.617  +26 47 12.88  21.5G 523750    F51  C~2jho      
2017 11  18.28151  02 31 08.572  +26 44 07.24  21.4G 523750    F51  C~2jho      
2017 11  18.29388  02 31 08.525  +26 44 06.96  21.5G 523750    F51  C~2jho      
2017 11  18.30627  02 31 08.462  +26 44 06.73  21.6G 523750    F51  C~2jho      
2017 11  18.31869  02 31 08.408  +26 44 06.50  21.5G 523750    F51  C~2jho      

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    -0.21
  2   0.0000      0.00     0.28       0.00    -0.14
  3   0.9086      0.00    -0.08       0.00    -0.06
  4   0.9419      0.00     0.00       0.00     0.03
  5   1.0999      0.00     0.15       0.00     0.07
  6   2.0258      0.00    -0.09       0.00    -0.11
  7   2.0259      0.00    -0.00       0.00     0.07
  8   2.0259      0.00    -0.03       0.00    -0.03
  9   2.0259      0.00    -0.11       0.00     0.00
 10   2.0259      0.00    -0.03       0.00     0.05
 11   2.0260      0.00    -0.07       0.00    -0.02
 12   2.0260      0.00     0.01       0.00    -0.05
 13   2.0287      0.00     0.02       0.00    -0.15
 14   2.0287      0.00     0.10       0.00     0.06
 15   2.0583      0.00    -0.01       0.00     0.13
 16   2.0583      0.00     0.04       0.00    -0.08
 17   2.0613      0.00     0.11       0.00    -0.08
 18   2.0613      0.00    -0.17       0.00    -0.10
 19   2.8501      0.00    -0.07       0.00     0.02
 20   2.8582      0.00     0.21       0.00     0.06
 21   3.1203      0.00    -0.05       0.00    -0.02
 22   3.1203      0.00    -0.07       0.00    -0.08
 23   3.1476      0.00     0.05       0.00    -0.05
 24   4.0381      0.00    -0.16       0.00     0.20
 25   4.0382      0.00    -0.14       0.00    -0.13
 26   4.0382      0.00    -0.14       0.00    -0.05
 27   4.0382      0.00    -0.04       0.00     0.05
 28   4.1142      0.00    -0.35       0.00     0.19
 29   4.1142      0.00    -0.05       0.00     0.07
 30   4.1143      0.00    -0.07       0.00     0.13
 31   4.1143      0.00    -0.13       0.00     0.06
 32   4.1201      0.00    -0.09       0.00     0.11
 33   4.1201      0.00     0.00       0.00     0.09
 34   4.1201      0.00    -0.03       0.00     0.07
 35   4.1202      0.00     0.13       0.00     0.24
 36   4.2019      0.00     0.04       0.00     0.13
 37   4.2020      0.00     0.09       0.00    -0.14
 38   4.2020      0.00    -0.26       0.00     0.25
 39   4.2020      0.00    -0.69       0.00     0.27
 40   4.8022      0.00     0.09       0.00    -0.03
 41   4.8023      0.00    -0.02       0.00    -0.15
 42   4.8023      0.00    -0.05       0.00    -0.09
 43   4.8023      0.00     0.00       0.00    -0.10
 44   5.0262      0.00    -0.07       0.00    -0.05
 45   5.0262      0.00     0.24       0.00     0.11
 46   5.0263      0.00     0.28       0.00     0.13
 47   5.0263      0.00     0.09       0.00     0.01
 48   5.9613      0.00    -0.22       0.00     0.32
 49   5.9614      0.00    -0.17       0.00     0.21
 50   6.0433      0.00     0.14       0.00     0.13
 51   6.0437      0.00     0.38       0.00     0.18
 52   6.0460      0.00     0.35       0.00    -0.12
 53   6.0463      0.00     1.32       0.00    -0.84
 54   6.2498      0.00    -0.29       0.00     0.30
 55   6.2498      0.00     0.27       0.00     0.13
 56   6.2499      0.00     0.05       0.00    -0.39
 57   6.2499      0.00     0.26       0.00    -0.40
 58   6.8855      0.00    -0.01       0.00     0.02
 59   6.8855      0.00     0.11       0.00     0.00
 60   6.8855      0.00     0.02       0.00    -0.04
 61   6.8856      0.00    -0.13       0.00    -0.07
 62   6.8964      0.00     0.11       0.00    -0.04
 63   6.8965      0.00    -0.15       0.00     0.01
 64   6.8965      0.00    -0.20       0.00    -0.05
 65   6.8966      0.00    -0.31       0.00    -0.07
 66   7.0740      0.00    -0.11       0.00     0.02
 67   7.0740      0.00     0.01       0.00     0.06
 68   7.0741      0.00    -0.00       0.00     0.00
 69   7.0741      0.00    -0.07       0.00    -0.00
 70   7.0958      0.00    -0.13       0.00    -0.08
 71   7.0958      0.00     0.03       0.00    -0.06
 72   7.0958      0.00    -0.05       0.00     0.00
 73   7.0959      0.00     0.01       0.00     0.07

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.

523750    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        47.151    47.151    47.151
ecceobj         0.114     0.114     0.114
incobj         11.034    11.034    11.034
qmin           40.596    40.579    40.581
qmax           53.312    53.296    53.332
amean          46.789    46.789    46.789
amin           46.399    46.400    46.398
amax           47.213    47.220    47.222
emean           0.118     0.118     0.118
emin            0.105     0.106     0.106
emax            0.130     0.129     0.130
imean          12.278    12.278    12.278
imin           11.894    11.892    11.895
imax           12.609    12.608    12.612
excite_mean     0.243     0.243     0.243
fracstop        1.000     1.000     1.000
cjmean          3.062     3.062     3.062

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       180.2     180.4     180.3
kozaiamp        180.0     180.0     180.0