Orbit Fit and Astrometric record for 505477

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: 505477    
# Created Fri Dec 15 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   51 observations of   51
# Arc:  14.89y
# First observation: 2002/10/05
#  Last observation: 2017/08/25
# Chi-squared of fit:    20.85 DOF:   96 RMS:  0.11
# Min/Max residuals:    -0.70    0.36
# Exact a, adot, b, bdot, g, gdot:
  1.616292E-05  2.260229E-02 -2.739689E-07 -2.301071E-04  2.344021E-02  1.459003E-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
   -1.787850    2.388138   -0.159660   -0.030825   -0.986461  2452552.822682
# Heliocentric elements and errors
Epoch:              2452552.5000  =  2002/10/05
Mean Anomaly:           61.68016 +/-     0.000
Argument of Peri:      182.39950 +/-     0.000
Long of Asc Node:      110.98713 +/-     0.000
Inclination:             1.84133 +/-     0.000
Eccentricity:         0.07183604 +/-    0.0000
Semi-Major Axis:     44.99222383 +/-    0.0000
Time of Perihelion: 2433666.1676 +/-       0.0
Perihelion:          41.76016044 +/-    0.0000
Aphelion:            48.22428722 +/-    0.0000
Period (y)              301.7966 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.58262431 +/-    0.0000
Ecliptic Y            1.98323103 +/-    0.0000
Ecliptic Z           -1.33099545 +/-    0.0000
Ecliptic XDOT         0.00005177 +/-    0.0000
Ecliptic YDOT         0.00264166 +/-    0.0000
Ecliptic ZDOT        -0.00003197 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.64798039 +/-    0.0000
Geocenter to KBO     42.66173379 +/-    0.0000
# Hcoef:  6.96

The following table shows the complete astrometric record for 505477. 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 (505477) followed by the observatory code and reference code for the source of the astrometry.

2002 10  05.321939 00 11 36.45   -00 41 27.1   23.9V 505477    645  C~25nl      
2002 10  05.322778 00 11 36.45   -00 41 27.1   22.0V 505477    645  C~25nl      
2002 10  05.325256 00 11 36.46   -00 41 27.1   25.0V 505477    645  C~25nl      
2008 10  02.240468 00 40 08.46   +02 18 34.2   23.1V 505477    645  C~25nl      
2008 10  02.241297 00 40 08.46   +02 18 34.3         505477    645  C~25nl      
2008 10  02.243785 00 40 08.45   +02 18 34.2         505477    645  C~25nl      
2013 08  02.52798  01 06 35.775  +05 04 42.60  23.3r 505477    568  C~2NKU      
2013 08  02.57069  01 06 35.723  +05 04 42.22  23.6r 505477    568  C~2NKU      
2013 08  30.44360  01 05 35.820  +04 57 30.02  23.0r 505477    568  C~2NKU      
2013 08  31.44775  01 05 32.717  +04 57 09.11  23.2r 505477    568  C~2NKU      
2013 08  31.49065  01 05 32.584  +04 57 08.23  23.2r 505477    568  C~2NKU      
2013 08  31.50871  01 05 32.522  +04 57 07.87  23.2r 505477    568  C~2NKU      
2013 09  04.42758  01 05 19.879  +04 55 43.07  23.4r 505477    568  C~2NKU      
2013 09  04.47051  01 05 19.732  +04 55 42.09  23.3r 505477    568  C~2NKU      
2013 09  04.47904  01 05 19.691  +04 55 42.10  23.6r 505477    568  C~2NKU      
2013 09  04.49657  01 05 19.640  +04 55 41.92  23.0r 505477    568  C~2NKU      
2013 09  04.50244  01 05 19.610  +04 55 41.25  23.0r 505477    568  C~2NKU      
2013 09  04.52303  01 05 19.544  +04 55 40.76  23.3r 505477    568  C~2NKU      
2013 10  06.40889  01 03 14.227  +04 42 16.45  23.3r 505477    568  C~2NKU      
2013 10  06.49158  01 03 13.870  +04 42 14.28  23.1r 505477    568  C~2NKU      
2013 10  06.49617  01 03 13.855  +04 42 14.24  23.2r 505477    568  C~2NKU      
2013 10  09.53885  01 03 00.782  +04 40 53.01  23.1r 505477    568  C~2NKU      
2013 10  31.25056  01 01 29.996  +04 31 41.31  23.2r 505477    568  C~25nl      
2013 10  31.29356  01 01 29.819  +04 31 40.42  23.4r 505477    568  C~25nl      
2013 10  31.33628  01 01 29.649  +04 31 39.46  23.3r 505477    568  C~25nl      
2013 11  01.27683  01 01 25.962  +04 31 17.52  23.2r 505477    568  C~2NKU      
2013 11  01.40318  01 01 25.456  +04 31 14.58  23.3r 505477    568  C~2NKU      
2013 11  05.45493  01 01 09.910  +04 29 43.05  23.2r 505477    568  C~2NKU      
2013 12  04.26738  00 59 43.897  +04 21 42.44  23.4r 505477    568  C~2NKU      
2013 12  04.31956  00 59 43.780  +04 21 41.87        505477    568  C~2NKU      
2014 06  27.59782  01 10 54.949  +05 32 43.40  23.4r 505477    568  C~2NKU      
2014 06  28.60286  01 10 56.808  +05 32 52.00  23.5r 505477    568  C~2NKU      
2014 07  24.56087  01 11 16.468  +05 33 41.68  23.2r 505477    568  C~2NKU      
2014 08  22.56426  01 10 34.946  +05 28 16.26  23.3r 505477    568  C~2NKU      
2014 08  28.42620  01 10 19.270  +05 26 28.36  23.3r 505477    568  C~2NKU      
2014 08  29.52684  01 10 16.077  +05 26 06.76  23.3r 505477    568  C~2NKU      
2014 08  29.56608  01 10 15.962  +05 26 05.87  25.1u 505477    568  C~2NKU      
2014 08  29.61463  01 10 15.817  +05 26 05.00  23.3r 505477    568  C~2NKU      
2014 10  23.36016  01 06 41.094  +05 03 27.86  23.2r 505477    568  C~2NKU      
2014 10  27.39884  01 06 24.311  +05 01 47.52  23.1r 505477    568  C~2NKU      
2014 11  24.24000  01 04 44.978  +04 52 15.26  23.3r 505477    568  C~2NKU      
2014 11  25.23617  01 04 42.178  +04 51 59.83  23.4r 505477    568  C~2NKU      
2014 12  17.25877  01 03 58.107  +04 48 19.75  23.2r 505477    568  C~2NKU      
2015 01  17.29797  01 04 03.752  +04 50 20.19  23.4r 505477    568  C~2NKU      
2015 10  15.30155  01 11 53.844  +05 35 15.10  23.2r 505477    568  C~2NKU      
2015 10  15.30564  01 11 53.828  +05 35 14.99  23.2r 505477    568  C~2NKU      
2015 10  15.35250  01 11 53.622  +05 35 13.73  23.1r 505477    568  C~2NKU      
2015 10  15.35660  01 11 53.602  +05 35 13.71  23.0r 505477    568  C~2NKU      
2015 12  07.37779  01 08 48.239  +05 17 32.89  23.6w 505477    568  C~2NKU      
2017 07  24.60098  01 24 52.410  +06 55 38.58  23.6w 505477    568  C~2NKU      
2017 08  25.51775  01 24 11.402  +06 50 16.08  23.6w 505477    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    -0.11       0.00    -0.70
  2   0.0000      0.00    -0.08       0.00    -0.01
  3   0.0000      0.00     0.23       0.00     0.06
  4   5.9929      0.00     0.17       0.00     0.02
  5   5.9929      0.00     0.22       0.00     0.14
  6   5.9929      0.00     0.23       0.00     0.11
  7  10.8260      0.00    -0.00       0.00    -0.06
  8  10.8261      0.00    -0.01       0.00    -0.03
  9  10.9025      0.00     0.09       0.00    -0.12
 10  10.9052      0.00     0.08       0.00    -0.07
 11  10.9053      0.00     0.14       0.00    -0.05
 12  10.9054      0.00     0.07       0.00    -0.03
 13  10.9161      0.00     0.08       0.00    -0.02
 14  10.9162      0.00     0.07       0.00    -0.05
 15  10.9162      0.00    -0.11       0.00     0.15
 16  10.9163      0.00     0.03       0.00     0.36
 17  10.9163      0.00    -0.12       0.00    -0.18
 18  10.9164      0.00    -0.06       0.00    -0.21
 19  11.0037      0.00    -0.05       0.00     0.01
 20  11.0039      0.00     0.01       0.00     0.05
 21  11.0039      0.00     0.08       0.00     0.13
 22  11.0122      0.00    -0.03       0.00     0.05
 23  11.0717      0.00     0.05       0.00    -0.11
 24  11.0718      0.00    -0.01       0.00     0.01
 25  11.0719      0.00     0.01       0.00     0.05
 26  11.0745      0.00     0.09       0.00     0.03
 27  11.0748      0.00     0.07       0.00     0.02
 28  11.0859      0.00     0.03       0.00     0.05
 29  11.1648      0.00     0.08       0.00     0.07
 30  11.1649      0.00    -0.01       0.00     0.04
 31  11.7270      0.00    -0.06       0.00     0.07
 32  11.7297      0.00     0.01       0.00    -0.01
 33  11.8008      0.00    -0.08       0.00    -0.04
 34  11.8802      0.00    -0.02       0.00    -0.04
 35  11.8962      0.00     0.03       0.00     0.01
 36  11.8993      0.00     0.01       0.00     0.02
 37  11.8994      0.00     0.06       0.00    -0.10
 38  11.8995      0.00     0.07       0.00    -0.00
 39  12.0494      0.00     0.04       0.00     0.01
 40  12.0604      0.00    -0.06       0.00     0.04
 41  12.1367      0.00    -0.08       0.00     0.08
 42  12.1394      0.00     0.07       0.00    -0.02
 43  12.1997      0.00     0.06       0.00    -0.02
 44  12.2847      0.00    -0.02       0.00     0.12
 45  13.0266      0.00     0.06       0.00     0.03
 46  13.0266      0.00     0.08       0.00     0.03
 47  13.0268      0.00     0.07       0.00    -0.01
 48  13.0268      0.00     0.04       0.00     0.08
 49  13.1720      0.00     0.02       0.00     0.07
 50  14.8016      0.00     0.21       0.00     0.06
 51  14.8890      0.00     0.16       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.

505477    quality flag:3

Type:      11:6EEEEE 11:6EEEEE 11:6EEEEE

axisobj        45.383    45.383    45.383
ecceobj         0.076     0.076     0.076
incobj          1.841     1.841     1.841
qmin           41.128    41.132    41.129
qmax           49.324    49.324    49.323
amean          45.103    45.102    45.103
amin           44.736    44.741    44.733
amax           45.482    45.481    45.483
emean           0.071     0.071     0.071
emin            0.059     0.059     0.059
emax            0.085     0.085     0.085
imean           0.703     0.703     0.703
imin            0.136     0.136     0.136
imax            1.107     1.107     1.107
excite_mean     0.073     0.073     0.073
fracstop        1.000     1.000     1.000
cjmean          3.109     3.109     3.109

libcent 0       177.1     178.8     181.2
libamp  0       166.0     167.0     170.7
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       163.5     163.6     163.4
kozaiamp        180.0     180.0     180.0