Orbit Fit and Astrometric record for 06QJ181

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: 06QJ181   
# Created Fri Dec 14 02:08:53 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   61 observations of   61
# Arc:   9.56y
# First observation: 2006/08/21
#  Last observation: 2016/03/13
# Chi-squared of fit:    58.24 DOF:  116 RMS:  0.17
# Min/Max residuals:    -0.74    0.50
# Exact a, adot, b, bdot, g, gdot:
  1.809437E-05  3.247543E-02 -5.365729E-06 -1.168184E-02  2.813148E-02 -8.507601E-03
# Covariance matrix:
  1.1657E-13 -2.2739E-14 -9.9909E-15  7.4930E-15  4.4325E-14 -5.4766E-14
 -2.2739E-14  2.3836E-14  8.9772E-15 -8.3365E-15  1.9545E-14  6.6536E-14
 -9.9909E-15  8.9772E-15  7.4875E-14 -1.2716E-14  1.1835E-15  2.8543E-14
  7.4930E-15 -8.3365E-15 -1.2716E-14  4.9089E-15 -3.7862E-15 -2.5849E-14
  4.4325E-14  1.9545E-14  1.1835E-15 -3.7862E-15  1.0206E-13  3.7802E-14
 -5.4766E-14  6.6536E-14  2.8543E-14 -2.5849E-14  3.7802E-14  2.0445E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.048260   63.021665    1.009056   -0.004241    0.082195  2453968.883464
# Heliocentric elements and errors
Epoch:              2453968.5000  =  2006/08/21
Mean Anomaly:          344.59230 +/-     0.002
Argument of Peri:      219.21163 +/-     0.003
Long of Asc Node:      249.77598 +/-     0.000
Inclination:            20.09965 +/-     0.000
Eccentricity:         0.49296747 +/-    0.0000
Semi-Major Axis:     62.28287474 +/-    0.0058
Time of Perihelion: 2461652.4904 +/-      24.0
Perihelion:          31.57944335 +/-    0.0038
Aphelion:            92.98630612 +/-    0.0090
Period (y)              491.5426 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.96170045 +/-    0.0002
Ecliptic Y           31.09988159 +/-    0.0004
Ecliptic Z            1.89009131 +/-    0.0000
Ecliptic XDOT        -0.00315981 +/-    0.0000
Ecliptic YDOT         0.00074596 +/-    0.0000
Ecliptic ZDOT        -0.00117938 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.47517033 +/-    0.0003
Geocenter to KBO     35.54754597 +/-    0.0004
# Hcoef:  6.95

The following table shows the complete astrometric record for 06QJ181. 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 (06QJ181) followed by the observatory code and reference code for the source of the astrometry.

2006 08  21.38271  04 01 20.31   +23 45 07.0   21.3R 06QJ181   807  Cs5502      
2006 08  22.36831  04 01 22.07   +23 45 10.5         06QJ181   807  Cs5502      
2006 08  23.35656  04 01 23.74   +23 45 13.7         06QJ181   807  Cs5502      
2006 10  19.36967  03 59 49.15   +23 38 50.2   22.1R 06QJ181   695  Ct0530      
2006 10  19.38242  03 59 49.08   +23 38 50.1         06QJ181   695  Ct0530      
2006 10  19.46362  03 59 48.73   +23 38 49.0         06QJ181   695  Ct0530      
2006 10  19.46731  03 59 48.68   +23 38 48.7         06QJ181   695  Ct0530      
2006 10  20.37568  03 59 44.53   +23 38 33.6         06QJ181   695  Ct0530      
2006 10  20.38728  03 59 44.47   +23 38 33.3         06QJ181   695  Ct0530      
2006 12  21.12996  03 53 58.88   +23 15 15.5   21.8R 06QJ181   695  Ct5545      
2006 12  21.22384  03 53 58.39   +23 15 13.0         06QJ181   695  Ct5545      
2006 12  24.29661  03 53 43.12   +23 13 58.5   22.7R 06QJ181   688  Ct2280      
2006 12  24.37369  03 53 42.70   +23 13 56.6         06QJ181   688  Ct2280      
2007 10  11.42511  04 09 10.79   +23 22 08.9   21.6R 06QJ181   688  C~02IB      
2007 10  11.48574  04 09 10.53   +23 22 08.6         06QJ181   688  C~02IB      
2008 10  22.42941  04 17 17.17   +22 58 18.5   21.7  06QJ181   695  C~02IB      
2008 10  22.47996  04 17 16.91   +22 58 17.5   21.7  06QJ181   695  C~02IB      
2008 10  24.42245  04 17 07.88   +22 57 45.0   21.6  06QJ181   695  C~02IB      
2008 10  24.50821  04 17 07.47   +22 57 43.4   21.4  06QJ181   695  C~02IB      
2008 11  30.28578  04 13 38.78   +22 45 12.8   22.0R 06QJ181   688  C~02Mi      
2008 11  30.34873  04 13 38.37   +22 45 11.2         06QJ181   688  C~02Mi      
2010 11  09.54395  04 34 01.754  +22 04 40.27  22.6G 06QJ181   F51  C~2jgR      
2010 11  09.56212  04 34 01.637  +22 04 39.76  22.9G 06QJ181   F51  C~2jgR      
2010 11  09.58035  04 34 01.547  +22 04 39.47  22.9G 06QJ181   F51  C~2jgR      
2010 11  09.59851  04 34 01.454  +22 04 39.27  23.6G 06QJ181   F51  C~2jgR      
2010 12  15.42957  04 30 25.310  +21 52 40.19  22.4G 06QJ181   F51  C~2jgR      
2011 01  09.22126  04 28 13.97   +21 44 51.3   21.9R 06QJ181   695  C~0U3z      
2011 01  09.29902  04 28 13.62   +21 44 49.8         06QJ181   695  C~0U3z      
2011 11  24.56456  04 41 53.199  +21 32 26.72  22.5G 06QJ181   F51  C~2jgR      
2011 11  30.31240  04 41 17.741  +21 30 35.56  22.4G 06QJ181   F51  C~2jgR      
2011 11  30.32499  04 41 17.667  +21 30 35.32  22.2G 06QJ181   F51  C~2jgR      
2013 04  05.26313  04 46 56.143  +20 42 46.93  23.4G 06QJ181   F51  C~2jgR      
2013 11  27.36315  05 00 26.142  +20 29 25.74  22.0G 06QJ181   F51  C~2jgR      
2013 11  27.37839  05 00 26.050  +20 29 25.43  22.2G 06QJ181   F51  C~2jgR      
2013 11  27.39363  05 00 25.957  +20 29 25.13  22.1G 06QJ181   F51  C~2jgR      
2013 11  27.40897  05 00 25.857  +20 29 24.97  22.0G 06QJ181   F51  C~2jgR      
2014 03  19.29402  04 54 48.065  +20 11 42.01  21.6G 06QJ181   F51  C~2jgR      
2014 10  25.63440  05 12 49.234  +20 03 56.47  22.5G 06QJ181   F51  C~2jgR      
2014 11  26.37862  05 10 06.734  +19 55 07.80  22.7G 06QJ181   F51  C~2jgR      
2014 12  02.39022  05 09 29.602  +19 53 28.48  22.4G 06QJ181   F51  C~2jgR      
2015 01  18.23346  05 04 57.568  +19 42 48.81  22.4G 06QJ181   F51  C~2jgR      
2015 01  18.24740  05 04 57.503  +19 42 48.82  21.4G 06QJ181   F51  C~2jgR      
2015 01  18.26135  05 04 57.452  +19 42 48.35  21.3G 06QJ181   F51  C~2jgR      
2015 01  18.27533  05 04 57.380  +19 42 48.46  21.6G 06QJ181   F51  C~2jgR      
2015 01  20.23705  05 04 48.805  +19 42 29.43  22.4G 06QJ181   F51  C~2jgR      
2015 01  20.25063  05 04 48.748  +19 42 29.27  22.0G 06QJ181   F51  C~2jgR      
2015 01  20.26415  05 04 48.688  +19 42 29.23  22.1G 06QJ181   F51  C~2jgR      
2015 12  08.49513  05 18 29.161  +19 14 59.26  21.8G 06QJ181   F51  C~2jgR      
2015 12  08.50715  05 18 29.093  +19 14 59.02  22.0G 06QJ181   F51  C~2jgR      
2015 12  08.51904  05 18 29.006  +19 14 58.93  21.8G 06QJ181   F51  C~2jgR      
2015 12  08.53093  05 18 28.941  +19 14 58.70  22.1G 06QJ181   F51  C~2jgR      
2015 12  09.50322  05 18 22.762  +19 14 44.16  22.3G 06QJ181   F51  C~2jgR      
2015 12  09.51709  05 18 22.674  +19 14 44.12  22.3G 06QJ181   F51  C~2jgR      
2015 12  09.53096  05 18 22.578  +19 14 43.69  22.1G 06QJ181   F51  C~2jgR      
2015 12  09.54487  05 18 22.490  +19 14 43.80  21.7G 06QJ181   F51  C~2jgR      
2016 01  14.40080  05 14 48.938  +19 07 25.61  22.6G 06QJ181   F51  C~2jgR      
2016 01  14.41478  05 14 48.840  +19 07 25.79  21.1G 06QJ181   F51  C~2jgR      
2016 01  14.42867  05 14 48.787  +19 07 25.46  21.9G 06QJ181   F51  C~2jgR      
2016 01  14.44257  05 14 48.724  +19 07 25.33  22.1G 06QJ181   F51  C~2jgR      
2016 03  13.12742  05 13 02.50   +19 04 08.3   22.1R 06QJ181   G37  C~1pPp      
2016 03  13.22653  05 13 02.68   +19 04 09.1         06QJ181   G37  C~1pPp      

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     0.09       0.00    -0.24
  2   0.0027      0.00     0.00       0.00    -0.24
  3   0.0054      0.00     0.23       0.00    -0.23
  4   0.1615      0.00     0.15       0.00     0.06
  5   0.1615      0.00    -0.02       0.00     0.17
  6   0.1618      0.00     0.40       0.00     0.40
  7   0.1618      0.00    -0.10       0.00     0.17
  8   0.1643      0.00     0.08       0.00     0.09
  9   0.1643      0.00     0.00       0.00    -0.01
 10   0.3333      0.00    -0.08       0.00     0.21
 11   0.3336      0.00    -0.13       0.00    -0.01
 12   0.3420      0.00     0.44       0.00    -0.06
 13   0.3422      0.00    -0.15       0.00    -0.08
 14   1.1391      0.00    -0.21       0.00    -0.74
 15   1.1392      0.00    -0.66       0.00    -0.22
 16   2.1712      0.00     0.07       0.00     0.34
 17   2.1714      0.00    -0.28       0.00     0.19
 18   2.1767      0.00    -0.09       0.00     0.18
 19   2.1769      0.00    -0.03       0.00     0.06
 20   2.2776      0.00     0.02       0.00     0.13
 21   2.2778      0.00    -0.29       0.00    -0.03
 22   4.2195      0.00     0.21       0.00     0.05
 23   4.2195      0.00     0.00       0.00    -0.11
 24   4.2196      0.00     0.20       0.00    -0.06
 25   4.2196      0.00     0.35       0.00     0.09
 26   4.3177      0.00     0.14       0.00     0.00
 27   4.3856      0.00    -0.08       0.00     0.11
 28   4.3858      0.00    -0.08       0.00    -0.05
 29   5.2599      0.00     0.06       0.00     0.05
 30   5.2756      0.00     0.01       0.00    -0.03
 31   5.2757      0.00     0.09       0.00    -0.03
 32   6.6225      0.00     0.01       0.00     0.03
 33   7.2689      0.00    -0.09       0.00     0.00
 34   7.2690      0.00    -0.04       0.00    -0.04
 35   7.2690      0.00    -0.00       0.00    -0.08
 36   7.2691      0.00    -0.06       0.00     0.02
 37   7.5754      0.00     0.09       0.00     0.22
 38   8.1786      0.00    -0.03       0.00    -0.27
 39   8.2656      0.00    -0.17       0.00     0.11
 40   8.2820      0.00    -0.02       0.00    -0.08
 41   8.4103      0.00    -0.03       0.00    -0.06
 42   8.4103      0.00    -0.05       0.00     0.08
 43   8.4103      0.00     0.14       0.00    -0.25
 44   8.4104      0.00     0.02       0.00    -0.01
 45   8.4158      0.00    -0.08       0.00    -0.06
 46   8.4158      0.00    -0.05       0.00    -0.09
 47   8.4158      0.00    -0.06       0.00    -0.01
 48   9.2980      0.00    -0.03       0.00     0.02
 49   9.2981      0.00     0.11       0.00    -0.04
 50   9.2981      0.00    -0.04       0.00     0.05
 51   9.2981      0.00     0.13       0.00     0.00
 52   9.3008      0.00     0.07       0.00    -0.14
 53   9.3008      0.00     0.10       0.00     0.02
 54   9.3009      0.00     0.00       0.00    -0.20
 55   9.3009      0.00     0.03       0.00     0.12
 56   9.3991      0.00     0.06       0.00    -0.10
 57   9.3991      0.00    -0.34       0.00     0.21
 58   9.3992      0.00    -0.07       0.00     0.01
 59   9.3992      0.00     0.05       0.00     0.01
 60   9.5599      0.00     0.02       0.00    -0.14
 61   9.5601      0.00     0.01       0.00     0.50

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.

06QJ181    quality flag:3

Type:          3:1EE     3:1EE     3:1EE
Type:          3:1II     3:1II     3:1II

axisobj        63.449    63.449    63.450
ecceobj         0.500     0.500     0.500
incobj         20.018    20.018    20.018
qmin           31.159    31.159    31.159
qmax           95.511    95.509    95.513
amean          62.629    62.629    62.630
amin           61.756    61.760    61.753
amax           63.772    63.773    63.770
emean           0.443     0.443     0.443
emin            0.366     0.367     0.366
emax            0.502     0.502     0.502
imean          25.119    25.107    25.114
imin           21.240    21.240    21.240
imax           29.278    29.261    29.272
excite_mean     0.615     0.615     0.615
fracstop        1.000     1.000     1.000
cjmean          2.817     2.817     2.817

libcent 0        77.0      77.2      77.3
libamp  0        42.6      42.9      43.3
libcent 1       165.9     166.5     166.1
libamp  1        47.5      48.0      47.7
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       228.0     228.5     228.3
kozaiamp          7.6       7.7       7.6