Orbit Fit and Astrometric record for 505447

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: 505447    
# Created Fri Dec 15 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   56 observations of   56
# Arc:   8.98y
# First observation: 2008/09/06
#  Last observation: 2017/08/30
# Chi-squared of fit:    19.22 DOF:  106 RMS:  0.10
# Min/Max residuals:    -0.83    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.435151E-05  1.917498E-02  8.713165E-07  8.054788E-04  2.170274E-02  1.431641E-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
   -2.573919    5.807366    0.369463   -0.041966   -0.933935  2454715.854370
# Heliocentric elements and errors
Epoch:              2454716.5000  =  2008/09/07
Mean Anomaly:          128.12152 +/-     0.000
Argument of Peri:      177.43524 +/-     0.000
Long of Asc Node:       51.95883 +/-     0.000
Inclination:             3.46940 +/-     0.000
Eccentricity:         0.09284605 +/-    0.0000
Semi-Major Axis:     44.26015261 +/-    0.0000
Time of Perihelion: 2416439.5473 +/-       0.0
Perihelion:          40.15077216 +/-    0.0000
Aphelion:            48.36953307 +/-    0.0000
Period (y)              294.4609 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           46.76323417 +/-    0.0000
Ecliptic Y            4.38045968 +/-    0.0000
Ecliptic Z           -2.06917787 +/-    0.0000
Ecliptic XDOT        -0.00005455 +/-    0.0000
Ecliptic YDOT         0.00242713 +/-    0.0000
Ecliptic ZDOT         0.00009328 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.01346411 +/-    0.0000
Geocenter to KBO     46.07711435 +/-    0.0000
# Hcoef:  6.41

The following table shows the complete astrometric record for 505447. 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 (505447) followed by the observatory code and reference code for the source of the astrometry.

2008 09  06.353616 00 25 24.04   -00 03 25.1   22.0V 505447    645  C~25nl      
2008 09  06.354446 00 25 24.04   -00 03 25.1   22.3V 505447    645  C~25nl      
2008 09  06.356933 00 25 24.04   -00 03 25.1   23.0V 505447    645  C~25nl      
2013 08  05.49705  00 46 34.183  +02 28 52.25  23.1r 505447    568  C~2NKJ      
2013 08  05.55029  00 46 34.089  +02 28 51.38  23.0r 505447    568  C~2NKJ      
2013 08  08.47594  00 46 28.759  +02 28 11.24  23.0r 505447    568  C~2NKJ      
2013 08  08.51475  00 46 28.681  +02 28 10.61  23.1r 505447    568  C~2NKJ      
2013 08  31.56101  00 45 28.301  +02 21 06.93  23.2r 505447    568  C~2NKJ      
2013 09  01.44658  00 45 25.424  +02 20 47.56  22.8r 505447    568  C~2NKJ      
2013 09  01.48552  00 45 25.294  +02 20 46.69  23.1r 505447    568  C~2NKJ      
2013 09  05.42605  00 45 12.033  +02 19 18.06  23.0r 505447    568  C~2NKJ      
2013 09  05.46492  00 45 11.904  +02 19 17.29  22.9r 505447    568  C~2NKJ      
2013 09  29.35704  00 43 40.957  +02 09 29.84  23.2r 505447    568  C~25nl      
2013 09  29.39589  00 43 40.801  +02 09 28.86  23.1r 505447    568  C~25nl      
2013 09  29.43972  00 43 40.623  +02 09 27.83  23.1r 505447    568  C~25nl      
2013 10  02.43081  00 43 28.501  +02 08 11.86  23.0r 505447    568  C~2NKJ      
2013 10  02.43568  00 43 28.485  +02 08 11.82  23.2r 505447    568  C~2NKJ      
2013 10  05.31801  00 43 16.788  +02 06 59.05  22.9r 505447    568  C~2NKJ      
2013 10  05.32294  00 43 16.774  +02 06 58.70  23.0r 505447    568  C~2NKJ      
2013 10  05.35570  00 43 16.633  +02 06 57.91  22.4r 505447    568  C~2NKJ      
2013 10  06.36409  00 43 12.537  +02 06 32.63  22.9r 505447    568  C~2NKJ      
2013 10  06.42856  00 43 12.271  +02 06 31.01  22.8r 505447    568  C~2NKJ      
2013 10  07.35091  00 43 08.528  +02 06 07.80  22.3r 505447    568  C~2NKJ      
2013 10  09.48861  00 42 59.855  +02 05 14.36  22.9r 505447    568  C~2NKJ      
2013 11  27.29243  00 40 17.710  +01 49 48.20  23.1r 505447    568  C~2NKJ      
2013 11  27.33867  00 40 17.613  +01 49 47.71  23.3r 505447    568  C~2NKK      
2014 06  25.60057  00 50 32.507  +02 58 59.82  23.2r 505447    568  C~2NKK      
2014 06  26.59942  00 50 33.890  +02 59 05.99  23.2r 505447    568  C~2NKK      
2014 07  23.57151  00 50 42.664  +02 58 51.84  23.1r 505447    568  C~2NKK      
2014 07  27.55192  00 50 39.293  +02 58 20.62  23.0r 505447    568  C~2NKK      
2014 08  22.53086  00 49 50.251  +02 52 16.91  25.2u 505447    568  C~2NKK      
2014 08  22.53512  00 49 50.234  +02 52 16.60  25.0u 505447    568  C~2NKK      
2014 08  24.49767  00 49 44.819  +02 51 39.16  23.2r 505447    568  C~2NKK      
2014 08  28.46980  00 49 33.195  +02 50 19.75  23.1r 505447    568  C~2NKK      
2014 08  29.61851  00 49 29.674  +02 49 55.94        505447    568  C~2NKK      
2014 10  23.32278  00 46 01.196  +02 27 59.27  22.9r 505447    568  C~2NKK      
2014 10  23.32666  00 46 01.181  +02 27 59.25  23.1r 505447    568  C~2NKK      
2014 10  27.28941  00 45 46.146  +02 26 30.50  23.1r 505447    568  C~2NKK      
2014 10  27.29329  00 45 46.131  +02 26 30.39  23.1r 505447    568  C~25nl      
2014 11  24.27113  00 44 18.329  +02 18 22.59  23.1r 505447    568  C~2NKK      
2014 11  24.27501  00 44 18.313  +02 18 22.47  23.2r 505447    568  C~2NKK      
2014 11  25.29743  00 44 15.912  +02 18 10.38  23.2r 505447    568  C~2NKK      
2014 11  25.30131  00 44 15.902  +02 18 10.37  23.2r 505447    568  C~2NKK      
2014 12  17.33921  00 43 42.078  +02 15 50.64  23.2r 505447    568  C~2NKK      
2014 12  17.34321  00 43 42.074  +02 15 50.89  23.2r 505447    568  C~2NKK      
2015 01  17.23338  00 43 58.890  +02 19 31.97  23.2r 505447    568  C~2NKK      
2015 10  12.27435  00 50 40.619  +03 00 30.96  23.0r 505447    568  C~2NKK      
2015 10  12.35600  00 50 40.279  +03 00 28.94  22.9r 505447    568  C~2NKK      
2015 10  12.42687  00 50 39.978  +03 00 27.13  23.0r 505447    568  C~2NKK      
2015 12  07.39898  00 47 45.174  +02 44 10.98  23.2w 505447    568  C~2NKK      
2015 12  31.22795  00 47 29.891  +02 43 59.16  23.3w 505447    568  C~2NKK      
2017 07  17.62072  01 02 16.311  +04 21 28.29  23.1w 505447    568  C~2NKK      
2017 07  23.60916  01 02 14.773  +04 21 04.90  23.4w 505447    568  C~2NKK      
2017 08  25.53703  01 01 20.341  +04 14 22.17  23.3w 505447    568  C~2NKK      
2017 08  30.47857  01 01 06.222  +04 12 47.50  23.3w 505447    568  C~2NKK      
2017 08  30.53116  01 01 06.064  +04 12 46.43  23.2w 505447    568  C~2NKK      

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    -0.13       0.00    -0.83
  2   0.0000      0.00     0.04       0.00    -0.05
  3   0.0000      0.00     0.18       0.00     0.02
  4   4.9121      0.00    -0.02       0.00     0.00
  5   4.9122      0.00    -0.00       0.00    -0.17
  6   4.9203      0.00     0.02       0.00     0.04
  7   4.9204      0.00     0.01       0.00    -0.03
  8   4.9835      0.00     0.03       0.00    -0.05
  9   4.9859      0.00     0.02       0.00     0.00
 10   4.9860      0.00     0.02       0.00    -0.01
 11   4.9968      0.00    -0.03       0.00     0.03
 12   4.9969      0.00     0.08       0.00     0.15
 13   5.0623      0.00     0.01       0.00     0.00
 14   5.0624      0.00     0.07       0.00     0.01
 15   5.0625      0.00     0.10       0.00     0.09
 16   5.0707      0.00    -0.05       0.00     0.02
 17   5.0707      0.00     0.01       0.00     0.10
 18   5.0786      0.00     0.01       0.00     0.19
 19   5.0786      0.00     0.11       0.00    -0.03
 20   5.0787      0.00     0.02       0.00     0.00
 21   5.0815      0.00     0.03       0.00     0.10
 22   5.0817      0.00     0.03       0.00     0.10
 23   5.0842      0.00    -0.03       0.00     0.04
 24   5.0900      0.00    -0.02       0.00    -0.04
 25   5.2237      0.00     0.05       0.00     0.02
 26   5.2238      0.00     0.09       0.00     0.00
 27   5.7994      0.00     0.01       0.00     0.05
 28   5.8022      0.00    -0.02       0.00     0.03
 29   5.8760      0.00     0.17       0.00     0.08
 30   5.8869      0.00     0.13       0.00    -0.09
 31   5.9580      0.00     0.05       0.00     0.22
 32   5.9581      0.00    -0.02       0.00    -0.01
 33   5.9634      0.00     0.09       0.00     0.03
 34   5.9743      0.00    -0.01       0.00     0.01
 35   5.9775      0.00     0.02       0.00    -0.00
 36   6.1272      0.00    -0.05       0.00     0.02
 37   6.1272      0.00    -0.05       0.00     0.09
 38   6.1381      0.00     0.06       0.00     0.01
 39   6.1381      0.00     0.06       0.00    -0.01
 40   6.2147      0.00     0.11       0.00     0.06
 41   6.2147      0.00     0.01       0.00    -0.01
 42   6.2175      0.00     0.05       0.00    -0.01
 43   6.2175      0.00     0.04       0.00     0.02
 44   6.2779      0.00     0.07       0.00    -0.14
 45   6.2779      0.00     0.06       0.00     0.11
 46   6.3624      0.00    -0.04       0.00     0.05
 47   7.0963      0.00     0.15       0.00     0.02
 48   7.0965      0.00     0.09       0.00     0.01
 49   7.0967      0.00    -0.04       0.00    -0.05
 50   7.2500      0.00     0.02       0.00     0.02
 51   7.3152      0.00     0.01       0.00    -0.02
 52   8.8604      0.00     0.13       0.00    -0.01
 53   8.8768      0.00    -0.02       0.00    -0.04
 54   8.9670      0.00     0.11       0.00    -0.01
 55   8.9805      0.00    -0.03       0.00    -0.03
 56   8.9806      0.00     0.01       0.00    -0.06

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.

505447    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.431    44.431    44.431
ecceobj         0.087     0.087     0.087
incobj          3.462     3.462     3.462
qmin           39.558    39.530    39.560
qmax           49.191    49.107    49.154
amean          44.205    44.205    44.205
amin           43.846    43.845    43.851
amax           44.592    44.581    44.597
emean           0.086     0.086     0.086
emin            0.070     0.070     0.070
emax            0.103     0.102     0.103
imean           2.313     2.313     2.313
imin            1.540     1.540     1.540
imax            2.940     2.941     2.940
excite_mean     0.095     0.095     0.095
fracstop        1.000     1.000     1.000
cjmean          3.093     3.093     3.093

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       189.2     189.3     189.1
kozaiamp        180.0     179.9     180.0