Orbit Fit and Astrometric record for 470027

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: 470027    
# Created Tue Dec 12 02:36:53 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   89 observations of   89
# Arc:   8.87y
# First observation: 2006/09/11
#  Last observation: 2015/07/25
# Chi-squared of fit:    51.60 DOF:  172 RMS:  0.13
# Min/Max residuals:    -0.51    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.586338E-05  2.746217E-02  4.285375E-06  7.440097E-03  2.692756E-02 -3.229412E-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
    8.523330  -21.747613   -0.179658    0.147223   -0.981794  2453989.741214
# Heliocentric elements and errors
Epoch:              2453990.5000  =  2006/09/12
Mean Anomaly:          315.97043 +/-     0.000
Argument of Peri:       85.88596 +/-     0.000
Long of Asc Node:      310.33916 +/-     0.000
Inclination:            17.17193 +/-     0.000
Eccentricity:         0.13932985 +/-    0.0000
Semi-Major Axis:     41.85353933 +/-    0.0000
Time of Perihelion: 2466086.4138 +/-       0.0
Perihelion:          36.02209204 +/-    0.0000
Aphelion:            47.68498661 +/-    0.0000
Period (y)              270.7737 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.09846372 +/-    0.0000
Ecliptic Y          -13.81189998 +/-    0.0000
Ecliptic Z            5.50429002 +/-    0.0000
Ecliptic XDOT         0.00063349 +/-    0.0000
Ecliptic YDOT         0.00275055 +/-    0.0000
Ecliptic ZDOT         0.00069940 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.11788340 +/-    0.0000
Geocenter to KBO     37.13677847 +/-    0.0000
# Hcoef:  6.23

The following table shows the complete astrometric record for 470027. 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 (470027) followed by the observatory code and reference code for the source of the astrometry.

2006 09  11.24046  22 26 53.71   -00 33 36.1   22.3V 470027    705  cs4131      
2006 09  11.24129  22 26 53.70   -00 33 36.2   23.5  470027    705  cs4132      
2006 09  17.22938  22 26 25.15   -00 36 21.0   22.1V 470027    705  cs4132      
2006 09  17.23270  22 26 25.13   -00 36 21.2   23.1  470027    705  cs4132      
2006 09  20.20536  22 26 11.39   -00 37 43.7   22.2V 470027    705  cs4132      
2006 09  20.20869  22 26 11.37   -00 37 44.0   23.2  470027    705  cs4132      
2006 09  27.23524  22 25 40.37   -00 40 58.9   22.1V 470027    705  cs4132      
2006 09  27.23857  22 25 40.35   -00 40 59.0   23.2  470027    705  cs4132      
2006 10  02.19025  22 25 19.99   -00 43 14.6   22.0V 470027    705  cs4132      
2006 10  02.19357  22 25 19.98   -00 43 14.9   22.8  470027    705  cs4132      
2006 10  12.18865  22 24 43.51   -00 47 37.1   22.3V 470027    705  cs4132      
2006 10  12.19197  22 24 43.49   -00 47 37.3   23.4  470027    705  cs4132      
2006 10  14.23786  22 24 36.86   -00 48 28.2   22.2V 470027    705  cs4132      
2006 10  14.24118  22 24 36.86   -00 48 28.3   23.3  470027    705  cs4132      
2006 10  21.18183  22 24 16.83   -00 51 13.1   22.4V 470027    705  cs4132      
2006 10  21.18515  22 24 16.83   -00 51 13.3   23.5  470027    705  cs4132      
2006 10  23.16870  22 24 11.82   -00 51 57.2   22.2V 470027    705  cs4132      
2006 10  23.17202  22 24 11.81   -00 51 57.5   23.2  470027    705  cs4132      
2006 10  28.17333  22 24 00.74   -00 53 42.8   22.2V 470027    705  cs6515      
2006 10  28.17416  22 24 00.73   -00 53 42.6   23.0  470027    705  cs6515      
2006 11  09.16590  22 23 43.57   -00 57 12.2   22.4V 470027    705  ct2287      
2006 11  09.16673  22 23 43.57   -00 57 12.3   23.6  470027    705  ct2287      
2006 11  13.16999  22 23 40.94   -00 58 07.1   22.2V 470027    705  ct2287      
2006 11  13.17332  22 23 40.93   -00 58 07.3   23.1  470027    705  ct2287      
2006 11  16.16613  22 23 39.99   -00 58 42.6   22.8V 470027    705  ct2287      
2006 11  16.16696  22 23 39.99   -00 58 42.6   24.3  470027    705  ct2287      
2006 11  19.16460  22 23 39.98   -00 59 13.2   22.4V 470027    705  ct2287      
2006 11  19.16543  22 23 39.98   -00 59 13.3   23.4  470027    705  ct2287      
2006 11  21.18644  22 23 40.47   -00 59 30.8   22.1V 470027    705  ct2287      
2006 11  21.18976  22 23 40.47   -00 59 31.0   23.0  470027    705  ct2287      
2007 07  11.34619  22 36 43.13   +00 42 46.3         470027    304  Cw0604      
2007 07  11.40169  22 36 42.96   +00 42 46.3         470027    304  Cw0604      
2007 09  05.24367  22 32 38.62   +00 28 01.3   22.2V 470027    705  Cz2954      
2007 09  05.24699  22 32 38.61   +00 28 01.5   23.2  470027    705  Cz2954      
2007 09  13.26532  22 31 59.09   +00 24 22.6   22.2V 470027    705  Cz2954      
2007 09  13.26864  22 31 59.08   +00 24 22.5   23.2  470027    705  Cz2954      
2007 09  15.21027  22 31 49.71   +00 23 28.5   22.3V 470027    705  Cz2954      
2007 09  15.21110  22 31 49.70   +00 23 28.2   23.6  470027    705  Cz2954      
2007 09  22.24295  22 31 16.78   +00 20 09.1   21.9V 470027    705  Cz2954      
2007 09  22.24378  22 31 16.79   +00 20 09.2   22.6  470027    705  Cz2954      
2007 09  30.31575  22 30 41.48   +00 16 20.1   21.4V 470027    705  Cz2954      
2007 09  30.31658  22 30 41.50   +00 16 20.4   21.6  470027    705  Cz2954      
2007 10  11.10435  22 29 59.94   +00 11 23.7   21.6R 470027    688  Cw0604      
2007 10  11.18226  22 29 59.64   +00 11 21.4         470027    688  Cw0604      
2007 10  12.25929  22 29 55.92   +00 10 52.8   22.2V 470027    705  Cz2954      
2007 10  12.26261  22 29 55.90   +00 10 52.7   23.1  470027    705  Cz2954      
2007 10  19.25426  22 29 33.79   +00 07 54.0   22.3V 470027    705  Cz2954      
2007 10  19.25509  22 29 33.77   +00 07 54.2   23.5  470027    705  Cz2954      
2007 10  31.17066  22 29 05.31   +00 03 24.8   22.2V 470027    705  Cz2954      
2007 10  31.17398  22 29 05.30   +00 03 24.7   23.2  470027    705  Cz2954      
2008 10  02.155021 22 35 46.04   +01 14 07.5   21.7V 470027    645  C~1RHe      
2008 10  02.155850 22 35 46.03   +01 14 07.5   21.2V 470027    645  C~1RHe      
2008 10  02.158338 22 35 46.02   +01 14 07.4   24.0V 470027    645  C~1RHe      
2009 07  27.38711  22 46 18.06   +02 39 09.0   22.0R 470027    688  C~07rv      
2009 07  27.43190  22 46 17.88   +02 39 08.7         470027    688  C~07rv      
2010 08  18.37998  22 50 03.355  +03 33 33.94  21.5i 470027    F51  C~1vVa      
2010 08  18.39168  22 50 03.272  +03 33 33.61  21.0i 470027    F51  C~1vVa      
2010 08  18.40493  22 50 03.224  +03 33 33.47  21.8r 470027    F51  C~1vVa      
2010 08  18.41664  22 50 03.165  +03 33 33.33  21.4r 470027    F51  C~1vVa      
2011 09  20.33516  22 52 44.552  +04 19 43.53  21.7w 470027    F51  C~1vVa      
2011 09  20.35026  22 52 44.475  +04 19 43.00  21.7w 470027    F51  C~1vVa      
2011 09  20.36545  22 52 44.404  +04 19 42.59  21.6w 470027    F51  C~1vVa      
2011 09  20.38068  22 52 44.325  +04 19 42.11  21.6w 470027    F51  C~1vVa      
2012 09  12.53620  22 58 45.39   +05 23 32.2   20.9R 470027    E10  C~0iZP      
2012 09  12.55140  22 58 45.27   +05 23 31.9   21.1R 470027    E10  C~0iZP      
2014 07  10.58610  23 14 09.532  +07 37 02.65  21.3i 470027    F51  C~1vVa      
2014 07  10.59299  23 14 09.522  +07 37 02.88  21.2i 470027    F51  C~1vVa      
2014 07  10.59988  23 14 09.506  +07 37 02.80  21.3i 470027    F51  C~1vVa      
2014 07  10.60678  23 14 09.488  +07 37 02.84  21.2i 470027    F51  C~1vVb      
2014 08  31.40600  23 10 49.288  +07 30 02.52  21.7w 470027    F51  C~1vVb      
2014 08  31.41769  23 10 49.231  +07 30 02.37  21.6w 470027    F51  C~1vVb      
2014 08  31.42940  23 10 49.179  +07 30 02.07  21.4w 470027    F51  C~1vVb      
2014 08  31.44118  23 10 49.114  +07 30 01.69  21.7w 470027    F51  C~1vVb      
2014 10  01.44066  23 08 14.397  +07 15 06.90  21.7w 470027    F51  C~1vVb      
2014 10  01.45215  23 08 14.350  +07 15 06.49  21.6w 470027    F51  C~1vVb      
2014 10  01.46368  23 08 14.297  +07 15 06.18  21.6w 470027    F51  C~1vVb      
2014 10  01.47524  23 08 14.235  +07 15 05.95  21.6w 470027    F51  C~1vVb      
2014 12  12.20774  23 05 49.864  +06 45 08.91  21.8w 470027    F51  C~1vVb      
2014 12  12.21865  23 05 49.878  +06 45 08.86  21.6w 470027    F51  C~1vVb      
2014 12  12.22955  23 05 49.889  +06 45 08.53  21.6w 470027    F51  C~1vVb      
2014 12  12.24042  23 05 49.906  +06 45 08.38  21.9w 470027    F51  C~1vVb      
2015 06  21.57490  23 20 00.408  +08 30 55.38  22.1w 470027    F51  C~1vVb      
2015 06  21.58304  23 20 00.408  +08 30 55.55  21.8w 470027    F51  C~1vVb      
2015 06  21.59117  23 20 00.406  +08 30 55.63  21.7w 470027    F51  C~1vVb      
2015 06  21.59927  23 20 00.405  +08 30 55.90  21.8w 470027    F51  C~1vVb      
2015 07  25.46360  23 19 02.229  +08 37 50.56  21.7w 470027    F51  C~1vVb      
2015 07  25.47469  23 19 02.189  +08 37 50.57  21.6w 470027    F51  C~1vVb      
2015 07  25.48563  23 19 02.155  +08 37 50.54  21.6w 470027    F51  C~1vVb      
2015 07  25.49658  23 19 02.128  +08 37 50.59  21.7w 470027    F51  C~1vVb      

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    -0.14       0.00     0.02
  2   0.0000      0.00     0.01       0.00    -0.02
  3   0.0164      0.00     0.12       0.00     0.08
  4   0.0164      0.00     0.06       0.00    -0.02
  5   0.0245      0.00     0.10       0.00     0.11
  6   0.0246      0.00     0.03       0.00    -0.09
  7   0.0438      0.00     0.22       0.00     0.12
  8   0.0438      0.00     0.14       0.00     0.11
  9   0.0574      0.00    -0.04       0.00     0.01
 10   0.0574      0.00     0.01       0.00    -0.20
 11   0.0847      0.00     0.23       0.00    -0.10
 12   0.0847      0.00     0.10       0.00    -0.22
 13   0.0903      0.00    -0.05       0.00     0.00
 14   0.0904      0.00     0.12       0.00    -0.02
 15   0.1094      0.00     0.04       0.00    -0.02
 16   0.1094      0.00     0.18       0.00    -0.15
 17   0.1148      0.00    -0.03       0.00     0.24
 18   0.1148      0.00    -0.06       0.00     0.01
 19   0.1285      0.00     0.04       0.00    -0.01
 20   0.1285      0.00    -0.08       0.00     0.20
 21   0.1613      0.00    -0.06       0.00     0.04
 22   0.1613      0.00    -0.04       0.00    -0.04
 23   0.1723      0.00     0.15       0.00    -0.11
 24   0.1723      0.00     0.03       0.00    -0.27
 25   0.1805      0.00    -0.12       0.00    -0.11
 26   0.1805      0.00    -0.12       0.00    -0.10
 27   0.1887      0.00     0.10       0.00    -0.06
 28   0.1887      0.00     0.09       0.00    -0.16
 29   0.1942      0.00    -0.03       0.00     0.15
 30   0.1942      0.00    -0.05       0.00    -0.02
 31   0.8299      0.00    -0.05       0.00     0.16
 32   0.8300      0.00    -0.08       0.00     0.24
 33   0.9829      0.00     0.01       0.00     0.12
 34   0.9829      0.00     0.12       0.00     0.41
 35   1.0049      0.00     0.16       0.00     0.01
 36   1.0049      0.00     0.25       0.00    -0.00
 37   1.0102      0.00     0.10       0.00     0.29
 38   1.0102      0.00     0.01       0.00     0.02
 39   1.0294      0.00    -0.00       0.00    -0.10
 40   1.0294      0.00     0.21       0.00     0.02
 41   1.0515      0.00    -0.26       0.00    -0.17
 42   1.0515      0.00     0.10       0.00     0.15
 43   1.0811      0.00     0.15       0.00     0.41
 44   1.0813      0.00    -0.17       0.00     0.19
 45   1.0842      0.00     0.09       0.00     0.15
 46   1.0842      0.00    -0.04       0.00     0.13
 47   1.1034      0.00     0.04       0.00    -0.00
 48   1.1034      0.00    -0.22       0.00     0.22
 49   1.1360      0.00     0.08       0.00    -0.08
 50   1.1360      0.00     0.03       0.00    -0.11
 51   2.0586      0.00     0.24       0.00    -0.19
 52   2.0586      0.00     0.14       0.00    -0.16
 53   2.0586      0.00     0.15       0.00    -0.19
 54   2.8751      0.00     0.10       0.00     0.01
 55   2.8753      0.00     0.06       0.00     0.11
 56   3.9347      0.00     0.12       0.00     0.01
 57   3.9347      0.00    -0.27       0.00    -0.09
 58   3.9347      0.00    -0.01       0.00     0.03
 59   3.9348      0.00    -0.04       0.00     0.12
 60   5.0242      0.00     0.04       0.00    -0.04
 61   5.0243      0.00     0.00       0.00    -0.12
 62   5.0243      0.00     0.07       0.00    -0.08
 63   5.0243      0.00     0.01       0.00    -0.10
 64   6.0049      0.00     0.13       0.00     0.17
 65   6.0050      0.00    -0.51       0.00     0.31
 66   7.8285      0.00     0.04       0.00    -0.02
 67   7.8285      0.00     0.11       0.00     0.15
 68   7.8285      0.00     0.10       0.00     0.00
 69   7.8285      0.00     0.05       0.00    -0.02
 70   7.9703      0.00    -0.02       0.00     0.02
 71   7.9704      0.00     0.03       0.00     0.15
 72   7.9704      0.00     0.15       0.00     0.12
 73   7.9704      0.00     0.08       0.00     0.02
 74   8.0553      0.00     0.12       0.00     0.01
 75   8.0553      0.00     0.23       0.00    -0.02
 76   8.0554      0.00     0.25       0.00     0.04
 77   8.0554      0.00     0.14       0.00     0.19
 78   8.2518      0.00     0.10       0.00    -0.04
 79   8.2518      0.00     0.10       0.00     0.00
 80   8.2519      0.00     0.05       0.00    -0.24
 81   8.2519      0.00     0.09       0.00    -0.30
 82   8.7757      0.00    -0.06       0.00     0.20
 83   8.7757      0.00    -0.03       0.00     0.18
 84   8.7758      0.00    -0.03       0.00     0.07
 85   8.7758      0.00    -0.02       0.00     0.14
 86   8.8685      0.00    -0.01       0.00    -0.16
 87   8.8685      0.00    -0.07       0.00    -0.16
 88   8.8686      0.00    -0.05       0.00    -0.19
 89   8.8686      0.00     0.08       0.00    -0.15

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.

470027    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.148    42.147    42.148
ecceobj         0.146     0.146     0.146
incobj         17.170    17.170    17.170
qmin           35.334    35.220    35.267
qmax           49.014    49.043    49.043
amean          41.980    41.975    41.982
amin           41.627    41.617    41.618
amax           42.392    42.381    42.391
emean           0.137     0.138     0.137
emin            0.120     0.120     0.119
emax            0.156     0.159     0.158
imean          18.683    18.716    18.701
imin           17.865    17.889    17.869
imax           19.412    19.436    19.407
excite_mean     0.349     0.349     0.349
fracstop        1.000     1.000     1.000
cjmean          2.932     2.931     2.932

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       178.2     177.2     177.6
kozaiamp        180.0     179.9     180.0