Orbit Fit and Astrometric record for 505476

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: 505476    
# Created Sat Dec 16 02:36:55 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   56 observations of   56
# Arc:   3.98y
# First observation: 2013/08/02
#  Last observation: 2017/07/24
# Chi-squared of fit:    14.05 DOF:  106 RMS:  0.09
# Min/Max residuals:    -0.36    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.546831E-05  2.307463E-02  1.339252E-07  3.164222E-04  2.348950E-02  2.263779E-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
   -1.903511   14.657853    0.918282   -0.014474   -0.436331  2456507.005448
# Heliocentric elements and errors
Epoch:              2456506.5000  =  2013/08/02
Mean Anomaly:           45.78399 +/-     0.000
Argument of Peri:      237.04911 +/-     0.000
Long of Asc Node:       81.96960 +/-     0.000
Inclination:             2.02400 +/-     0.000
Eccentricity:         0.09654112 +/-    0.0000
Semi-Major Axis:     45.86350039 +/-    0.0000
Time of Perihelion: 2442078.3587 +/-       0.0
Perihelion:          41.43578650 +/-    0.0000
Aphelion:            50.29121429 +/-    0.0000
Period (y)              310.6054 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.81845049 +/-    0.0000
Ecliptic Y            9.99202180 +/-    0.0000
Ecliptic Z           -1.41404632 +/-    0.0000
Ecliptic XDOT        -0.00043048 +/-    0.0000
Ecliptic YDOT         0.00266818 +/-    0.0000
Ecliptic ZDOT         0.00002824 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.01881686 +/-    0.0000
Geocenter to KBO     42.57217386 +/-    0.0000
# Hcoef:  6.70

The following table shows the complete astrometric record for 505476. 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 (505476) followed by the observatory code and reference code for the source of the astrometry.

2013 08  02.50467  00 56 55.773  +04 01 16.21  23.0r 505476    568  C~2NKT      
2013 08  02.54741  00 56 55.712  +04 01 15.75  23.1r 505476    568  C~2NKT      
2013 08  11.50367  00 56 40.455  +03 59 18.97  22.9r 505476    568  C~2NKT      
2013 08  30.42008  00 55 49.680  +03 53 24.18  22.9r 505476    568  C~2NKT      
2013 08  31.42413  00 55 46.358  +03 53 01.82  22.7r 505476    568  C~2NKT      
2013 08  31.46730  00 55 46.207  +03 53 00.81  22.8r 505476    568  C~2NKT      
2013 09  04.40430  00 55 32.692  +03 51 30.28  22.9r 505476    568  C~2NKT      
2013 09  04.44707  00 55 32.539  +03 51 29.22  22.8r 505476    568  C~2NKT      
2013 10  05.37122  00 53 26.333  +03 37 56.94  22.8r 505476    568  C~2NKT      
2013 10  05.37632  00 53 26.308  +03 37 56.83  22.8r 505476    568  C~2NKT      
2013 10  06.37972  00 53 21.902  +03 37 29.29  22.8r 505476    568  C~2NKT      
2013 10  06.44410  00 53 21.612  +03 37 27.54  22.6r 505476    568  C~2NKT      
2013 10  09.50414  00 53 08.156  +03 36 03.80  22.9r 505476    568  C~25nl      
2013 10  09.50879  00 53 08.143  +03 36 03.80  22.7r 505476    568  C~2NKT      
2013 10  31.22708  00 51 36.341  +03 26 46.30  22.9r 505476    568  C~25nl      
2013 10  31.27019  00 51 36.159  +03 26 45.31  23.2r 505476    568  C~25nl      
2013 10  31.31297  00 51 35.992  +03 26 44.38  23.0r 505476    568  C~25nl      
2013 11  01.25343  00 51 32.309  +03 26 22.55  23.1r 505476    568  C~2NKT      
2013 11  01.37273  00 51 31.835  +03 26 19.85  22.7r 505476    568  C~2NKT      
2013 11  02.20394  00 51 28.623  +03 26 00.73  23.1r 505476    568  C~2NKT      
2013 11  02.22554  00 51 28.541  +03 26 00.43  23.0r 505476    568  C~2NKT      
2013 11  02.24797  00 51 28.452  +03 25 59.70  23.1r 505476    568  C~2NKT      
2013 11  02.26953  00 51 28.349  +03 25 59.39        505476    568  C~2NKT      
2013 11  02.29201  00 51 28.283  +03 25 58.83  23.2r 505476    568  C~2NKT      
2013 11  05.25599  00 51 17.037  +03 24 52.60  22.8r 505476    568  C~2NKT      
2013 11  05.37780  00 51 16.555  +03 24 50.20        505476    568  C~2NKT      
2013 11  06.34704  00 51 12.994  +03 24 28.87  22.5r 505476    568  C~2NKT      
2013 11  06.39952  00 51 12.773  +03 24 28.11  22.6r 505476    568  C~2NKT      
2013 11  06.40464  00 51 12.756  +03 24 27.95  22.6r 505476    568  C~2NKT      
2013 11  07.43574  00 51 08.986  +03 24 06.17  22.6r 505476    568  C~2NKT      
2013 11  29.21607  00 50 03.751  +03 18 04.25  23.1r 505476    568  C~2NKT      
2013 12  04.24324  00 49 53.287  +03 17 11.98  22.8r 505476    568  C~2NKT      
2013 12  04.29069  00 49 53.194  +03 17 11.69  22.4r 505476    568  C~2NKU      
2013 12  05.31529  00 49 51.293  +03 17 02.60  22.8r 505476    568  C~2NKU      
2014 06  27.57448  01 01 38.156  +04 33 23.63  23.2r 505476    568  C~2NKU      
2014 06  28.57952  01 01 39.885  +04 33 31.70  23.0r 505476    568  C~2NKU      
2014 07  23.55193  01 01 55.603  +04 34 03.45  23.4r 505476    568  C~25nl      
2014 07  27.53111  01 01 53.296  +04 33 38.73  23.1r 505476    568  C~2NKU      
2014 08  28.45040  01 00 50.410  +04 25 57.91  22.7r 505476    568  C~2NKU      
2014 10  23.27749  00 57 04.692  +04 02 07.01  22.8r 505476    568  C~2NKU      
2014 10  23.33112  00 57 04.453  +04 02 05.60  22.8r 505476    568  C~2NKU      
2014 10  23.38450  00 57 04.220  +04 02 04.28  22.9r 505476    568  C~2NKU      
2014 10  25.25487  00 56 56.357  +04 01 17.03  22.9r 505476    568  C~2NKU      
2014 10  25.34568  00 56 55.970  +04 01 14.60  22.8r 505476    568  C~2NKU      
2014 10  25.35645  00 56 55.919  +04 01 14.49  22.8r 505476    568  C~2NKU      
2014 10  25.45680  00 56 55.501  +04 01 11.97  22.9r 505476    568  C~2NKU      
2014 10  27.24490  00 56 48.085  +04 00 27.67  23.2r 505476    568  C~2NKU      
2014 10  27.30309  00 56 47.838  +04 00 26.19  23.0r 505476    568  C~2NKU      
2014 10  27.36937  00 56 47.547  +04 00 24.54  22.8r 505476    568  C~2NKU      
2014 10  29.25791  00 56 39.824  +03 59 38.53  22.7r 505476    568  C~2NKU      
2014 11  19.27463  00 55 23.825  +03 52 20.68  22.9r 505476    568  C~2NKU      
2014 12  17.32324  00 54 26.234  +03 47 34.76  22.7r 505476    568  C~2NKU      
2015 01  17.26407  00 54 39.788  +03 50 35.81  22.9r 505476    568  C~2NKU      
2017 01  31.21678  01 04 42.729  +04 56 15.52  23.4w 505476    568  C~2NKU      
2017 01  31.22433  01 04 42.748  +04 56 15.63  23.4w 505476    568  C~2NKU      
2017 07  24.59111  01 16 19.981  +06 06 19.30  23.4w 505476    568  C~2NKU      

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    -0.01       0.00    -0.15
  2   0.0001      0.00     0.02       0.00     0.03
  3   0.0246      0.00     0.12       0.00    -0.06
  4   0.0764      0.00     0.17       0.00     0.05
  5   0.0792      0.00     0.04       0.00     0.04
  6   0.0793      0.00    -0.02       0.00    -0.00
  7   0.0901      0.00     0.02       0.00     0.05
  8   0.0902      0.00     0.03       0.00    -0.00
  9   0.1749      0.00     0.06       0.00     0.01
 10   0.1749      0.00     0.03       0.00     0.04
 11   0.1776      0.00     0.05       0.00     0.02
 12   0.1778      0.00     0.03       0.00     0.03
 13   0.1862      0.00    -0.06       0.00    -0.07
 14   0.1862      0.00     0.06       0.00     0.06
 15   0.2456      0.00     0.06       0.00    -0.02
 16   0.2458      0.00    -0.08       0.00    -0.00
 17   0.2459      0.00    -0.01       0.00     0.06
 18   0.2485      0.00    -0.00       0.00     0.03
 19   0.2488      0.00     0.01       0.00     0.07
 20   0.2511      0.00     0.04       0.00    -0.03
 21   0.2511      0.00     0.08       0.00     0.16
 22   0.2512      0.00     0.06       0.00    -0.06
 23   0.2512      0.00    -0.21       0.00     0.12
 24   0.2513      0.00     0.13       0.00     0.07
 25   0.2594      0.00     0.25       0.00    -0.19
 26   0.2597      0.00    -0.02       0.00     0.06
 27   0.2624      0.00     0.38       0.00    -0.36
 28   0.2625      0.00     0.02       0.00     0.00
 29   0.2626      0.00     0.05       0.00    -0.05
 30   0.2654      0.00     0.05       0.00     0.05
 31   0.3250      0.00     0.10       0.00     0.05
 32   0.3388      0.00     0.06       0.00     0.01
 33   0.3389      0.00     0.07       0.00     0.15
 34   0.3417      0.00    -0.14       0.00     0.07
 35   0.9009      0.00    -0.13       0.00     0.03
 36   0.9037      0.00    -0.01       0.00     0.02
 37   0.9721      0.00    -0.05       0.00     0.02
 38   0.9830      0.00     0.13       0.00    -0.05
 39   1.0704      0.00    -0.02       0.00     0.01
 40   1.2232      0.00     0.17       0.00     0.06
 41   1.2233      0.00     0.05       0.00     0.01
 42   1.2235      0.00     0.01       0.00     0.05
 43   1.2286      0.00     0.06       0.00     0.04
 44   1.2289      0.00     0.06       0.00    -0.11
 45   1.2289      0.00    -0.02       0.00     0.05
 46   1.2292      0.00     0.13       0.00     0.04
 47   1.2341      0.00     0.14       0.00     0.13
 48   1.2342      0.00     0.10       0.00     0.08
 49   1.2344      0.00    -0.08       0.00     0.06
 50   1.2396      0.00     0.04       0.00     0.06
 51   1.2971      0.00     0.03       0.00     0.10
 52   1.3739      0.00     0.00       0.00    -0.17
 53   1.4586      0.00    -0.02       0.00     0.01
 54   3.4982      0.00    -0.02       0.00     0.01
 55   3.4982      0.00    -0.04       0.00    -0.03
 56   3.9756      0.00     0.03       0.00    -0.03

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.

505476    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        46.137    46.137    46.137
ecceobj         0.102     0.102     0.102
incobj          2.024     2.024     2.024
qmin           40.701    40.699    40.703
qmax           51.278    51.284    51.271
amean          45.847    45.847    45.847
amin           45.469    45.474    45.473
amax           46.261    46.261    46.259
emean           0.096     0.096     0.096
emin            0.082     0.082     0.082
emax            0.109     0.109     0.108
imean           0.514     0.514     0.514
imin            0.000     0.000     0.000
imax            0.913     0.913     0.913
excite_mean     0.096     0.096     0.096
fracstop        1.000     1.000     1.000
cjmean          3.113     3.113     3.113

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       183.9     183.9     183.8
kozaiamp        179.9     180.0     180.0