Orbit Fit and Astrometric record for 471954

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: 471954    
# Created Thu Oct 19 01:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   78 observations of   78
# Arc:   6.04y
# First observation: 2009/09/26
#  Last observation: 2015/10/11
# Chi-squared of fit:    92.07 DOF:  150 RMS:  0.19
# Min/Max residuals:    -0.90    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.456141E-05  1.912555E-02  6.463836E-06  1.018253E-02  2.323014E-02  2.735824E-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
   -1.417019  -10.473714   -0.240711   -0.023995   -0.969655  2455100.848104
# Heliocentric elements and errors
Epoch:              2455100.5000  =  2009/09/26
Mean Anomaly:           87.00002 +/-     0.000
Argument of Peri:      255.04293 +/-     0.000
Long of Asc Node:      352.44079 +/-     0.000
Inclination:            28.02582 +/-     0.000
Eccentricity:         0.13151318 +/-    0.0000
Semi-Major Axis:     43.57094070 +/-    0.0000
Time of Perihelion: 2429713.5416 +/-       0.0
Perihelion:          37.84078780 +/-    0.0000
Aphelion:            49.30109360 +/-    0.0000
Period (y)              287.6098 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.31842824 +/-    0.0000
Ecliptic Y           -7.76541957 +/-    0.0000
Ecliptic Z           -1.06423748 +/-    0.0000
Ecliptic XDOT         0.00075971 +/-    0.0000
Ecliptic YDOT         0.00215758 +/-    0.0000
Ecliptic ZDOT         0.00119167 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.02173541 +/-    0.0000
Geocenter to KBO     43.04747725 +/-    0.0000
# Hcoef:  5.63

The following table shows the complete astrometric record for 471954. 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 (471954) followed by the observatory code and reference code for the source of the astrometry.

2009 09  26.347338 23 23 43.65   -05 26 59.8         471954    645  C~1eOE      
2009 09  26.348160 23 23 43.64   -05 26 59.8         471954    645  C~1eOE      
2009 09  26.350648 23 23 43.63   -05 26 59.9         471954    645  C~1eOE      
2010 09  15.44875  23 27 41.087  -04 24 53.95  21.8w 471954    F51  C~1vX3      
2010 09  15.45880  23 27 41.047  -04 24 54.34  21.8w 471954    F51  C~1vX3      
2010 09  15.46865  23 27 40.996  -04 24 54.53  21.9w 471954    F51  C~1vX3      
2010 09  15.47887  23 27 40.956  -04 24 54.64  22.0w 471954    F51  C~1vX3      
2013 08  15.50529  23 39 02.847  -01 22 03.64  22.2w 471954    F51  C~1vX3      
2013 08  15.50595  23 39 02.836  -01 22 03.69  22.5w 471954    F51  C~1vX3      
2013 08  15.52085  23 39 02.781  -01 22 03.87  22.1w 471954    F51  C~1vX3      
2013 08  15.52151  23 39 02.772  -01 22 03.87  22.2w 471954    F51  C~1vX3      
2013 08  15.53643  23 39 02.717  -01 22 04.10  21.9w 471954    F51  C~1vX3      
2013 08  15.53709  23 39 02.715  -01 22 04.09  22.1w 471954    F51  C~1vX3      
2013 08  15.55197  23 39 02.662  -01 22 04.49  22.3w 471954    F51  C~1vX3      
2013 08  15.55263  23 39 02.649  -01 22 04.39  22.0w 471954    F51  C~1vX3      
2013 09  03.43012  23 37 45.830  -01 28 16.62  22.1w 471954    F51  C~1vX3      
2013 09  03.44500  23 37 45.762  -01 28 16.97  22.0w 471954    F51  C~1vX3      
2013 09  03.45992  23 37 45.700  -01 28 17.29  22.1w 471954    F51  C~1vX3      
2013 09  03.47483  23 37 45.628  -01 28 17.70  22.0w 471954    F51  C~1vX3      
2013 09  08.173102 23 37 25.03   -01 30 00.5   22.4g 471954    W84  C~1eOE      
2013 10  12.116227 23 34 57.65   -01 42 31.8   21.9z 471954    W84  C~1eOE      
2013 10  13.060961 23 34 53.93   -01 42 50.6   22.1z 471954    W84  C~1eOE      
2013 10  13.082917 23 34 53.84   -01 42 51.1   21.1i 471954    W84  C~1eOE      
2013 10  28.030995 23 34 00.25   -01 47 17.8   22.0r 471954    W84  C~1eOE      
2013 10  28.056597 23 34 00.17   -01 47 18.2   22.0i 471954    W84  C~1eOE      
2013 11  22.055023 23 33 01.69   -01 51 33.5   22.5g 471954    W84  C~1eOE      
2013 11  23.083912 23 33 00.28   -01 51 37.6   22.1r 471954    W84  C~1eOE      
2014 07  26.57828  23 43 06.081  -00 21 10.85  22.1w 471954    F51  C~1vX3      
2014 07  26.58765  23 43 06.058  -00 21 10.76  22.1w 471954    F51  C~1vX3      
2014 07  26.59703  23 43 06.025  -00 21 10.87  22.0w 471954    F51  C~1vX3      
2014 07  26.60641  23 43 05.998  -00 21 11.11  22.0w 471954    F51  C~1vX3      
2014 07  28.53911  23 43 01.008  -00 21 28.85  22.2w 471954    F51  C~1vX3      
2014 07  28.55054  23 43 00.972  -00 21 28.77  22.2w 471954    F51  C~1vX3      
2014 07  28.56194  23 43 00.954  -00 21 28.90  22.1w 471954    F51  C~1vX3      
2014 07  28.57331  23 43 00.928  -00 21 29.07  22.2w 471954    F51  C~1vX3      
2014 08  03.52930  23 42 43.985  -00 22 33.54  22.2w 471954    F51  C~1vX3      
2014 08  03.54063  23 42 43.952  -00 22 33.80  22.1w 471954    F51  C~1vX3      
2014 08  03.55194  23 42 43.930  -00 22 33.86  22.2w 471954    F51  C~1vX3      
2014 08  03.56326  23 42 43.883  -00 22 34.04  22.2w 471954    F51  C~1vX3      
2014 08  04.52017  23 42 40.974  -00 22 45.56  22.3w 471954    F51  C~1vX3      
2014 08  04.53154  23 42 40.926  -00 22 45.69  22.2w 471954    F51  C~1vX3      
2014 08  04.55422  23 42 40.869  -00 22 46.11  22.4w 471954    F51  C~1vX3      
2014 08  23.49386  23 41 33.226  -00 27 46.84  22.2w 471954    F51  C~1vX3      
2014 08  23.50543  23 41 33.185  -00 27 47.63  22.0w 471954    F51  C~1vX3      
2014 08  23.51704  23 41 33.138  -00 27 47.45  22.2w 471954    F51  C~1vX3      
2014 08  23.52865  23 41 33.089  -00 27 47.85  22.2w 471954    F51  C~1vX3      
2014 08  29.43813  23 41 08.914  -00 29 43.99  22.0w 471954    F51  C~1vX3      
2014 08  29.44981  23 41 08.865  -00 29 43.79  22.3w 471954    F51  C~1vX3      
2014 08  29.57554  23 41 08.310  -00 29 46.53  22.2w 471954    F51  C~1vX3      
2014 08  29.58696  23 41 08.261  -00 29 46.69  22.2w 471954    F51  C~1vX3      
2014 09  17.33953  23 39 46.393  -00 36 36.17  22.0w 471954    F51  C~1vX3      
2014 09  17.35139  23 39 46.336  -00 36 36.45  21.9w 471954    F51  C~1vX3      
2014 09  17.36324  23 39 46.279  -00 36 36.88  22.0w 471954    F51  C~1vX3      
2014 09  17.37510  23 39 46.233  -00 36 37.08  21.8w 471954    F51  C~1vX3      
2014 10  14.213611 23 37 51.28   -00 46 31.3         471954    W84  C~1eOE      
2014 10  27.093877 23 37 04.54   -00 50 31.5         471954    W84  C~1eOE      
2014 10  28.121458 23 37 01.18   -00 50 48.6   21.9r 471954    W84  C~1eOE      
2014 10  28.156806 23 37 01.06   -00 50 49.2   22.4g 471954    W84  C~1eOE      
2014 10  28.158171 23 37 01.05   -00 50 49.1   22.1z 471954    W84  C~1eOE      
2014 11  11.25800  23 36 21.731  -00 54 03.45  22.3w 471954    F51  C~1vX3      
2014 11  11.27953  23 36 21.690  -00 54 02.85  21.9w 471954    F51  C~1vX3      
2014 11  11.29032  23 36 21.664  -00 54 03.49  22.1w 471954    F51  C~1vX3      
2014 11  26.25450  23 35 55.630  -00 55 52.59  22.2w 471954    F51  C~1vX3      
2014 11  26.26653  23 35 55.622  -00 55 52.65  22.4w 471954    F51  C~1vX3      
2014 11  26.27854  23 35 55.596  -00 55 52.96  22.1w 471954    F51  C~1vX3      
2014 11  26.29054  23 35 55.571  -00 55 53.01  22.0w 471954    F51  C~1vX3      
2014 12  18.21402  23 35 50.930  -00 55 02.92  22.2w 471954    F51  C~1vX3      
2014 12  18.22611  23 35 50.944  -00 55 02.81  22.0w 471954    F51  C~1vX3      
2014 12  18.23820  23 35 50.933  -00 55 02.76  21.9w 471954    F51  C~1vX3      
2014 12  18.25024  23 35 50.957  -00 55 02.70  22.0w 471954    F51  C~1vX3      
2015 07  28.56303  23 45 59.442  +00 34 30.33  22.3w 471954    F51  C~1vX3      
2015 07  28.57573  23 45 59.399  +00 34 30.19  22.2w 471954    F51  C~1vX3      
2015 07  28.58845  23 45 59.367  +00 34 30.14  22.0w 471954    F51  C~1vX3      
2015 07  28.60109  23 45 59.337  +00 34 30.04  22.0w 471954    F51  C~1vX3      
2015 09  30.144190 23 41 50.68   +00 15 02.9   22.0i 471954    W84  C~1eOE      
2015 09  30.223796 23 41 50.31   +00 15 01.1   21.9i 471954    W84  C~1eOE      
2015 10  11.197488 23 41 04.00   +00 10 57.1         471954    695  C~1eOE      
2015 10  11.376771 23 41 03.28   +00 10 53.4         471954    695  C~1eOE      

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    -0.17       0.00    -0.90
  2   0.0000      0.00    -0.38       0.00    -0.00
  3   0.0000      0.00    -0.36       0.00    -0.05
  4   0.9695      0.00     0.37       0.00     0.15
  5   0.9695      0.00     0.47       0.00    -0.01
  6   0.9695      0.00     0.38       0.00     0.02
  7   0.9696      0.00     0.48       0.00     0.15
  8   3.8854      0.00     0.23       0.00    -0.09
  9   3.8854      0.00     0.10       0.00    -0.12
 10   3.8855      0.00     0.13       0.00    -0.05
 11   3.8855      0.00     0.03       0.00    -0.04
 12   3.8855      0.00     0.06       0.00    -0.01
 13   3.8855      0.00     0.06       0.00     0.01
 14   3.8856      0.00     0.12       0.00    -0.13
 15   3.8856      0.00    -0.04       0.00    -0.02
 16   3.9373      0.00     0.14       0.00    -0.00
 17   3.9373      0.00     0.11       0.00    -0.03
 18   3.9373      0.00     0.17       0.00    -0.03
 19   3.9374      0.00     0.08       0.00    -0.11
 20   3.9502      0.00     0.10       0.00     0.17
 21   4.0432      0.00    -0.00       0.00     0.11
 22   4.0458      0.00     0.15       0.00     0.23
 23   4.0458      0.00     0.12       0.00     0.17
 24   4.0867      0.00    -0.02       0.00     0.12
 25   4.0868      0.00     0.04       0.00     0.12
 26   4.1553      0.00     0.13       0.00     0.08
 27   4.1581      0.00     0.01       0.00     0.21
 28   4.8302      0.00    -0.15       0.00    -0.06
 29   4.8302      0.00    -0.13       0.00     0.11
 30   4.8303      0.00    -0.26       0.00     0.08
 31   4.8303      0.00    -0.30       0.00    -0.08
 32   4.8356      0.00    -0.18       0.00    -0.17
 33   4.8356      0.00    -0.25       0.00     0.02
 34   4.8356      0.00    -0.06       0.00    -0.00
 35   4.8357      0.00     0.02       0.00    -0.07
 36   4.8520      0.00    -0.23       0.00     0.06
 37   4.8520      0.00    -0.19       0.00    -0.06
 38   4.8520      0.00     0.00       0.00     0.01
 39   4.8521      0.00    -0.18       0.00    -0.03
 40   4.8547      0.00    -0.01       0.00     0.21
 41   4.8547      0.00    -0.19       0.00     0.23
 42   4.8548      0.00     0.03       0.00     0.09
 43   4.9066      0.00    -0.01       0.00     0.31
 44   4.9067      0.00     0.08       0.00    -0.26
 45   4.9067      0.00     0.08       0.00     0.14
 46   4.9067      0.00     0.06       0.00    -0.04
 47   4.9229      0.00     0.28       0.00    -0.16
 48   4.9229      0.00     0.30       0.00     0.28
 49   4.9233      0.00     0.01       0.00     0.10
 50   4.9233      0.00     0.01       0.00     0.17
 51   4.9747      0.00     0.28       0.00     0.13
 52   4.9747      0.00     0.23       0.00     0.12
 53   4.9747      0.00     0.18       0.00    -0.04
 54   4.9748      0.00     0.30       0.00     0.03
 55   5.0482      0.00     0.01       0.00    -0.09
 56   5.0835      0.00    -0.02       0.00     0.10
 57   5.0863      0.00    -0.02       0.00     0.03
 58   5.0864      0.00    -0.06       0.00     0.01
 59   5.0864      0.00    -0.15       0.00     0.13
 60   5.1250      0.00    -0.07       0.00    -0.64
 61   5.1251      0.00     0.08       0.00     0.19
 62   5.1251      0.00     0.08       0.00    -0.33
 63   5.1661      0.00     0.08       0.00    -0.08
 64   5.1661      0.00     0.18       0.00    -0.09
 65   5.1661      0.00     0.01       0.00    -0.36
 66   5.1662      0.00    -0.15       0.00    -0.37
 67   5.2262      0.00    -0.05       0.00    -0.18
 68   5.2262      0.00     0.04       0.00    -0.17
 69   5.2263      0.00    -0.25       0.00    -0.22
 70   5.2263      0.00    -0.00       0.00    -0.26
 71   5.8350      0.00     0.27       0.00     0.07
 72   5.8350      0.00     0.13       0.00     0.04
 73   5.8350      0.00     0.15       0.00     0.09
 74   5.8351      0.00     0.21       0.00     0.10
 75   6.0090      0.00     0.20       0.00     0.11
 76   6.0092      0.00    -0.08       0.00     0.12
 77   6.0393      0.00     0.13       0.00     0.30
 78   6.0398      0.00     0.43       0.00     0.45

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.

471954    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.508    43.509    43.508
ecceobj         0.129     0.129     0.129
incobj         28.022    28.022    28.022
qmin           37.141    37.136    37.139
qmax           49.914    49.927    49.922
amean          43.385    43.385    43.385
amin           43.037    43.041    43.030
amax           43.767    43.761    43.767
emean           0.126     0.126     0.125
emin            0.111     0.111     0.111
emax            0.141     0.141     0.141
imean          28.736    28.736    28.736
imin           28.396    28.391    28.395
imax           29.081    29.072    29.091
excite_mean     0.497     0.497     0.497
fracstop        1.000     1.000     1.000
cjmean          2.781     2.781     2.781

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       180.5     180.7     180.5
kozaiamp        180.0     180.0     180.0