Orbit Fit and Astrometric record for 303712

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: 303712    
# Created Mon Dec 18 02:36:40 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   91 observations of   91
# Arc:   9.95y
# First observation: 2005/08/09
#  Last observation: 2015/07/23
# Chi-squared of fit:   164.91 DOF:  176 RMS:  0.24
# Min/Max residuals:    -0.75    1.45
# Exact a, adot, b, bdot, g, gdot:
  1.581275E-05  2.563186E-02 -1.926340E-07  5.996772E-04  2.514514E-02  1.985896E-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
   -0.086459  -24.017496    0.332510   -0.001329   -0.960100  2453591.732003
# Heliocentric elements and errors
Epoch:              2453592.5000  =  2005/08/10
Mean Anomaly:           39.19314 +/-     0.000
Argument of Peri:      308.96402 +/-     0.000
Long of Asc Node:      339.11148 +/-     0.000
Inclination:             1.34461 +/-     0.000
Eccentricity:         0.10291645 +/-    0.0000
Semi-Major Axis:     44.02886086 +/-    0.0000
Time of Perihelion: 2441975.0136 +/-       0.0
Perihelion:          39.49756684 +/-    0.0000
Aphelion:            48.56015489 +/-    0.0000
Period (y)              292.1557 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.06361793 +/-    0.0000
Ecliptic Y          -16.88181482 +/-    0.0000
Ecliptic Z           -0.06002314 +/-    0.0000
Ecliptic XDOT         0.00133510 +/-    0.0000
Ecliptic YDOT         0.00245435 +/-    0.0000
Ecliptic ZDOT         0.00006500 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.72723124 +/-    0.0000
Geocenter to KBO     39.76910061 +/-    0.0000
# Hcoef:  6.06

The following table shows the complete astrometric record for 303712. 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 (303712) followed by the observatory code and reference code for the source of the astrometry.

2005 08  09.23126  22 31 11.11   -09 23 51.6   20.7R 303712    807  Co4015      
2005 08  10.07821  22 31 07.44   -09 24 12.9         303712    807  Co4015      
2005 08  10.21174  22 31 06.85   -09 24 16.3         303712    807  Co4015      
2005 11  02.13010  22 25 52.00   -09 54 16.0   21.8R 303712    695  Cp0721      
2005 11  02.23766  22 25 51.84   -09 54 16.7         303712    695  Cp0721      
2005 11  03.13681  22 25 50.64   -09 54 23.2         303712    695  Cp0721      
2005 12  23.21823  22 26 43.51   -09 48 53.1   22.0R 303712    568  Cp7793      
2005 12  23.25795  22 26 43.63   -09 48 52.4         303712    568  Cp7793      
2006 08  21.18518  22 35 46.64   -08 54 31.2   20.5R 303712    807  Cs2735      
2006 08  21.27601  22 35 46.24   -08 54 33.6         303712    807  Cs2735      
2006 08  22.18022  22 35 42.09   -08 54 57.3         303712    807  Cs2735      
2006 09  24.18326  22 33 13.29   -09 09 24.3   22.2R 303712    688  Cs2735      
2006 09  24.27712  22 33 12.92   -09 09 26.6         303712    688  Cs2735      
2006 10  19.10461  22 31 46.73   -09 17 43.0   21.7R 303712    695  Ct0508      
2006 10  19.10839  22 31 46.72   -09 17 42.9         303712    695  Ct0508      
2006 10  19.19841  22 31 46.48   -09 17 44.4         303712    695  Ct0508      
2006 10  19.20218  22 31 46.47   -09 17 44.5         303712    695  Ct0508      
2006 10  20.10690  22 31 44.10   -09 17 58.2         303712    695  Ct0508      
2006 10  20.11097  22 31 44.08   -09 17 58.1         303712    695  Ct0508      
2007 05  10.52392  22 43 42.90   -08 05 25.9   22.6R 303712    250  S~06At      
2007 05  10.53087  22 43 42.92   -08 05 25.7         303712    250  S~06At      
2007 10  11.11958  22 37 36.53   -08 41 07.7   22.0R 303712    688  Cw0564      
2007 10  11.19716  22 37 36.17   -08 41 09.4         303712    688  Cw0564      
2009 08  20.28631  22 52 02.42   -07 09 53.7   22.3R 303712    688  C~08U5      
2009 08  20.34614  22 52 02.18   -07 09 55.5         303712    688  C~08U5      
2009 10  15.144564 22 48 06.76   -07 33 33.4         303712    645  C~1Q1r      
2009 10  15.145393 22 48 06.76   -07 33 33.4         303712    645  C~1Q1r      
2009 10  15.147881 22 48 06.75   -07 33 33.3         303712    645  C~1Q1r      
2010 09  15.44332  22 55 26.011  -06 46 43.25  22.2w 303712    F51  C~1vx4      
2010 09  15.45323  22 55 25.969  -06 46 43.48  22.0w 303712    F51  C~1vx4      
2010 09  15.46303  22 55 25.912  -06 46 44.00  22.1w 303712    F51  C~1vx4      
2011 08  29.44461  23 02 03.089  -06 03 39.38  22.3w 303712    F51  C~1vx4      
2011 08  29.45876  23 02 03.023  -06 03 39.43  22.5w 303712    F51  C~1vx4      
2011 08  29.47287  23 02 02.953  -06 03 39.97  22.4w 303712    F51  C~1vx4      
2011 10  20.00897  22 58 29.98   -06 25 26.3   21.8R 303712    304  C~0ZSQ      
2011 10  20.08299  22 58 29.75   -06 25 28.0         303712    304  C~0ZSQ      
2011 10  20.24008  22 58 29.27   -06 25 30.6         303712    304  C~0ZSQ      
2011 10  21.00946  22 58 26.95   -06 25 45.3         303712    304  C~0ZSQ      
2011 10  21.14803  22 58 26.53   -06 25 47.5         303712    304  C~0ZSQ      
2011 10  21.21204  22 58 26.32   -06 25 48.7         303712    304  C~0ZSQ      
2011 10  21.99999  22 58 23.99   -06 26 03.0         303712    304  C~0ZSQ      
2011 10  22.13493  22 58 23.58   -06 26 05.5         303712    304  C~0ZSQ      
2011 10  22.22458  22 58 23.31   -06 26 07.0         303712    304  C~0ZSQ      
2011 10  24.01716  22 58 18.25   -06 26 38.4         303712    304  C~0ZSQ      
2011 10  24.07935  22 58 18.02   -06 26 40.5         303712    304  C~0ZSQ      
2011 10  24.14248  22 58 17.79   -06 26 41.2         303712    304  C~0ZSQ      
2012 10  18.04603  23 03 48.94   -05 50 13.8   22.1R 303712    304  C~0pJH      
2012 10  18.16966  23 03 48.57   -05 50 16.4         303712    304  C~0pJH      
2012 10  18.22642  23 03 48.35   -05 50 17.4         303712    304  C~0pJH      
2012 10  19.04782  23 03 45.74   -05 50 33.8         303712    304  C~0pJH      
2012 10  19.12771  23 03 45.47   -05 50 35.3         303712    304  C~0pJH      
2012 10  19.23190  23 03 45.15   -05 50 37.3         303712    304  C~0pJH      
2012 10  20.08648  23 03 42.47   -05 50 54.0         303712    304  C~0pJH      
2012 10  20.16817  23 03 42.21   -05 50 55.5         303712    304  C~0pJH      
2012 10  20.22961  23 03 42.01   -05 50 56.8         303712    304  C~0pJH      
2013 08  15.49937  23 13 30.573  -04 47 30.14  22.1w 303712    F51  C~1vx4      
2013 08  15.51492  23 13 30.517  -04 47 30.54  22.4w 303712    F51  C~1vx4      
2013 08  15.53050  23 13 30.456  -04 47 30.84  22.3w 303712    F51  C~1vx4      
2013 08  15.54605  23 13 30.381  -04 47 31.31  22.1w 303712    F51  C~1vx4      
2013 09  03.42331  23 12 09.182  -04 55 56.27  22.2w 303712    F51  C~1vx4      
2013 09  03.43820  23 12 09.117  -04 55 56.47  22.2w 303712    F51  C~1vx4      
2013 09  03.45310  23 12 09.047  -04 55 57.13  22.0w 303712    F51  C~1vx4      
2013 09  03.46799  23 12 08.976  -04 55 57.53  22.2w 303712    F51  C~1vx4      
2014 07  26.58299  23 19 51.198  -04 05 16.93  22.8w 303712    F51  C~1vx4      
2014 07  26.59238  23 19 51.189  -04 05 16.83  22.6w 303712    F51  C~1vx4      
2014 07  26.60174  23 19 51.150  -04 05 17.04  22.2w 303712    F51  C~1vx4      
2014 07  26.61112  23 19 51.106  -04 05 17.60  22.8w 303712    F51  C~1vx4      
2014 08  04.52490  23 19 23.099  -04 08 10.29  22.4w 303712    F51  C~1vx4      
2014 08  04.53626  23 19 23.066  -04 08 10.41  22.2w 303712    F51  C~1vx4      
2014 08  04.54760  23 19 23.037  -04 08 10.82  22.7w 303712    F51  C~1vx4      
2014 08  04.55894  23 19 23.005  -04 08 11.31  22.5w 303712    F51  C~1vx4      
2014 08  20.47528  23 18 22.595  -04 14 27.09  22.3w 303712    F51  C~1vx4      
2014 08  20.48745  23 18 22.523  -04 14 27.32  22.2w 303712    F51  C~1vx4      
2014 08  20.49962  23 18 22.478  -04 14 27.69  22.1w 303712    F51  C~1vx4      
2014 08  20.51181  23 18 22.431  -04 14 27.84  22.3w 303712    F51  C~1vx4      
2014 08  23.48508  23 18 10.008  -04 15 45.58  22.3w 303712    F51  C~1vx4      
2014 08  23.49667  23 18 09.953  -04 15 46.18  22.3w 303712    F51  C~1vx4      
2014 08  23.50827  23 18 09.893  -04 15 46.50  22.3w 303712    F51  C~1vx5      
2014 08  23.51989  23 18 09.845  -04 15 46.33  22.4w 303712    F51  C~1vx5      
2014 09  19.32878  23 16 10.800  -04 28 12.55  22.1w 303712    F51  C~1vx5      
2014 09  19.32945  23 16 10.794  -04 28 12.71  22.4w 303712    F51  C~1vx5      
2014 09  19.34023  23 16 10.764  -04 28 12.90  22.4w 303712    F51  C~1vx5      
2014 09  19.34089  23 16 10.753  -04 28 12.46  22.3w 303712    F51  C~1vx5      
2014 09  19.35166  23 16 10.710  -04 28 12.96  22.1w 303712    F51  C~1vx5      
2014 09  19.35232  23 16 10.712  -04 28 13.22  22.1w 303712    F51  C~1vx5      
2014 09  19.36310  23 16 10.663  -04 28 13.40  22.1w 303712    F51  C~1vx5      
2014 09  19.36376  23 16 10.647  -04 28 13.53  22.3w 303712    F51  C~1vx5      
2015 07  23.50495  23 25 07.308  -03 29 32.92  22.4w 303712    F51  C~1vx5      
2015 07  23.51712  23 25 07.271  -03 29 33.15  22.6w 303712    F51  C~1vx5      
2015 07  23.52921  23 25 07.252  -03 29 33.44  22.2w 303712    F51  C~1vx5      
2015 07  23.54140  23 25 07.211  -03 29 33.72  22.1w 303712    F51  C~1vx5      

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    -0.65
  2   0.0023      0.00     0.12       0.00     0.16
  3   0.0027      0.00     0.14       0.00     0.15
  4   0.2324      0.00    -0.08       0.00    -0.23
  5   0.2327      0.00    -0.14       0.00    -0.13
  6   0.2352      0.00    -0.22       0.00    -0.09
  7   0.3723      0.00    -0.04       0.00    -0.05
  8   0.3724      0.00    -0.20       0.00    -0.15
  9   1.0320      0.00     0.02       0.00    -0.27
 10   1.0323      0.00     0.34       0.00    -0.24
 11   1.0348      0.00     0.00       0.00     0.23
 12   1.1251      0.00    -0.14       0.00    -0.04
 13   1.1254      0.00     0.23       0.00    -0.10
 14   1.1934      0.00    -0.09       0.00     0.09
 15   1.1934      0.00    -0.08       0.00     0.25
 16   1.1936      0.00     0.03       0.00     0.13
 17   1.1936      0.00     0.03       0.00     0.08
 18   1.1961      0.00     0.10       0.00    -0.01
 19   1.1961      0.00    -0.04       0.00     0.15
 20   1.7503      0.00    -0.36       0.00     0.41
 21   1.7503      0.00    -0.34       0.00     0.49
 22   2.1708      0.00     1.45       0.00     0.34
 23   2.1710      0.00     0.00       0.00     0.15
 24   4.0303      0.00    -0.38       0.00     0.35
 25   4.0304      0.00     0.04       0.00     0.14
 26   4.1832      0.00     0.31       0.00    -0.53
 27   4.1832      0.00     0.35       0.00    -0.51
 28   4.1832      0.00     0.32       0.00    -0.37
 29   5.1012      0.00     0.19       0.00    -0.18
 30   5.1012      0.00     0.24       0.00    -0.14
 31   5.1013      0.00     0.06       0.00    -0.39
 32   6.0540      0.00     0.03       0.00    -0.12
 33   6.0540      0.00     0.01       0.00     0.22
 34   6.0540      0.00    -0.07       0.00     0.07
 35   6.1951      0.00    -0.16       0.00     0.18
 36   6.1954      0.00    -0.11       0.00    -0.13
 37   6.1958      0.00     0.08       0.00     0.21
 38   6.1979      0.00     0.11       0.00    -0.17
 39   6.1983      0.00     0.22       0.00     0.18
 40   6.1984      0.00     0.01       0.00     0.15
 41   6.2006      0.00    -0.03       0.00     0.19
 42   6.2010      0.00    -0.06       0.00     0.12
 43   6.2012      0.00    -0.09       0.00     0.22
 44   6.2061      0.00     0.95       0.00     0.28
 45   6.2063      0.00     0.19       0.00    -0.75
 46   6.2065      0.00    -0.54       0.00    -0.37
 47   7.1918      0.00    -0.24       0.00     0.16
 48   7.1922      0.00     0.35       0.00     0.03
 49   7.1923      0.00    -0.15       0.00     0.16
 50   7.1946      0.00    -0.05       0.00     0.02
 51   7.1948      0.00    -0.21       0.00     0.08
 52   7.1951      0.00     0.04       0.00     0.12
 53   7.1974      0.00    -0.12       0.00    -0.01
 54   7.1976      0.00    -0.12       0.00     0.05
 55   7.1978      0.00    -0.21       0.00    -0.08
 56   8.0172      0.00     0.01       0.00    -0.04
 57   8.0172      0.00     0.13       0.00    -0.05
 58   8.0172      0.00     0.17       0.00     0.04
 59   8.0173      0.00     0.00       0.00    -0.05
 60   8.0690      0.00     0.19       0.00    -0.02
 61   8.0690      0.00     0.23       0.00     0.20
 62   8.0691      0.00     0.21       0.00    -0.05
 63   8.0691      0.00     0.17       0.00    -0.03
 64   8.9619      0.00     0.07       0.00    -0.19
 65   8.9620      0.00     0.35       0.00     0.07
 66   8.9620      0.00     0.18       0.00     0.03
 67   8.9620      0.00    -0.07       0.00    -0.37
 68   8.9864      0.00    -0.18       0.00     0.06
 69   8.9865      0.00    -0.08       0.00     0.18
 70   8.9865      0.00     0.08       0.00     0.01
 71   8.9865      0.00     0.19       0.00    -0.24
 72   9.0301      0.00     0.10       0.00     0.03
 73   9.0301      0.00    -0.21       0.00     0.11
 74   9.0302      0.00    -0.12       0.00     0.06
 75   9.0302      0.00    -0.05       0.00     0.22
 76   9.0383      0.00     0.07       0.00     0.13
 77   9.0384      0.00    -0.00       0.00    -0.16
 78   9.0384      0.00    -0.15       0.00    -0.18
 79   9.0384      0.00    -0.12       0.00     0.30
 80   9.1118      0.00    -0.09       0.00    -0.07
 81   9.1118      0.00    -0.14       0.00    -0.21
 82   9.1119      0.00     0.15       0.00    -0.10
 83   9.1119      0.00     0.03       0.00     0.36
 84   9.1119      0.00     0.12       0.00     0.16
 85   9.1119      0.00     0.19       0.00    -0.08
 86   9.1119      0.00     0.19       0.00     0.04
 87   9.1119      0.00    -0.01       0.00    -0.07
 88   9.9528      0.00     0.13       0.00     0.30
 89   9.9529      0.00     0.06       0.00     0.26
 90   9.9529      0.00     0.24       0.00     0.16
 91   9.9529      0.00     0.11       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.

303712    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.351    44.351    44.351
ecceobj         0.105     0.105     0.105
incobj          1.341     1.341     1.341
qmin           39.020    39.007    38.997
qmax           49.716    49.711    49.727
amean          44.219    44.219    44.218
amin           43.867    43.864    43.859
amax           44.607    44.601    44.602
emean           0.098     0.098     0.098
emin            0.082     0.082     0.081
emax            0.115     0.115     0.115
imean           2.685     2.685     2.685
imin            1.893     1.893     1.893
imax            3.400     3.400     3.401
excite_mean     0.109     0.109     0.109
fracstop        1.000     1.000     1.000
cjmean          3.090     3.090     3.090

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       177.1     177.0     177.2
kozaiamp        180.0     180.0     179.9