Orbit Fit and Astrometric record for 469707

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: 469707    
# Created Mon Dec 11 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   68 observations of   68
# Arc:  11.13y
# First observation: 2005/04/10
#  Last observation: 2016/05/29
# Chi-squared of fit:   162.06 DOF:  130 RMS:  0.27
# Min/Max residuals:    -0.68    1.01
# Exact a, adot, b, bdot, g, gdot:
  1.801933E-05  4.216224E-02  4.397290E-06  1.100898E-02  3.426189E-02  1.030590E-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
   -1.439163 -147.863587    0.199836   -0.024477   -0.977304  2453470.869283
# Heliocentric elements and errors
Epoch:              2453470.5000  =  2005/04/10
Mean Anomaly:            3.19962 +/-     0.000
Argument of Peri:      349.09159 +/-     0.000
Long of Asc Node:      217.08299 +/-     0.000
Inclination:            14.66256 +/-     0.000
Eccentricity:         0.24189292 +/-    0.0000
Semi-Major Axis:     39.76048663 +/-    0.0000
Time of Perihelion: 2452656.5990 +/-       0.0
Perihelion:          30.14270626 +/-    0.0000
Aphelion:            49.37826700 +/-    0.0000
Period (y)              250.7181 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -25.64540026 +/-    0.0000
Ecliptic Y          -15.87238559 +/-    0.0000
Ecliptic Z           -0.73288258 +/-    0.0000
Ecliptic XDOT         0.00170414 +/-    0.0000
Ecliptic YDOT        -0.00291561 +/-    0.0000
Ecliptic ZDOT         0.00087743 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.16878598 +/-    0.0000
Geocenter to KBO     29.18695938 +/-    0.0000
# Hcoef:  7.09

The following table shows the complete astrometric record for 469707. 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 (469707) followed by the observatory code and reference code for the source of the astrometry.

2005 04  10.36854  13 57 47.22   -13 33 58.3   21.6R 469707    695  Cn3379      
2005 04  11.33662  13 57 41.43   -13 33 21.4         469707    695  Cn3379      
2005 04  11.42230  13 57 40.91   -13 33 18.2         469707    695  Cn3379      
2005 05  09.18071  13 54 54.38   -13 15 08.7   20.7R 469707    807  Cn5372      
2005 05  10.17511  13 54 48.71   -13 14 30.5         469707    807  Cn5373      
2005 05  10.25976  13 54 48.23   -13 14 27.0         469707    807  Cn5373      
2005 05  10.31720  13 54 47.91   -13 14 25.0         469707    807  Cn5373      
2005 06  07.05929  13 52 35.47   -12 58 36.2   21.8R 469707    304  Cn6545      
2005 06  07.15120  13 52 35.12   -12 58 33.5         469707    304  Cn6545      
2005 06  09.16050  13 52 27.98   -12 57 37.1   21.5R 469707    304  Cn7074      
2005 06  09.20127  13 52 27.84   -12 57 36.0         469707    304  Cn7074      
2005 08  07.99805  13 52 27.77   -12 48 38.1   20.6R 469707    807  Co4001      
2005 08  09.00612  13 52 31.48   -12 48 49.7         469707    807  Co4001      
2005 08  09.99889  13 52 35.23   -12 49 01.6         469707    807  Co4001      
2006 04  22.26428  14 06 51.48   -13 40 37.8         469707    304  Cr0851      
2006 04  22.31679  14 06 51.14   -13 40 36.3         469707    304  Cr0851      
2006 04  26.20492  14 06 27.39   -13 38 06.1   20.4R 469707    807  Cr3594      
2006 04  26.29101  14 06 26.86   -13 38 02.7         469707    807  Cr3594      
2006 04  28.08726  14 06 15.90   -13 36 53.4         469707    807  Cr3594      
2006 05  01.39391  14 05 55.83   -13 34 45.7   21.9R 469707    568  Cr4850      
2006 05  01.42430  14 05 55.64   -13 34 44.5   22.0R 469707    568  Cr4850      
2006 05  01.45596  14 05 55.43   -13 34 43.4   21.9R 469707    568  Cr4850      
2006 05  02.27529  14 05 50.46   -13 34 11.4   21.6r 469707    695  Cr0851      
2006 05  02.32156  14 05 50.18   -13 34 09.7         469707    695  Cr0851      
2006 05  02.33016  14 05 50.16   -13 34 09.7   21.9R 469707    568  Cr4850      
2006 05  26.227085 14 03 36.78   -13 19 35.5   21.8V 469707    645  C~1S6s      
2006 05  26.227914 14 03 36.78   -13 19 35.5   21.6V 469707    645  C~1S6s      
2006 05  26.230402 14 03 36.77   -13 19 35.4   22.3V 469707    645  C~1S6s      
2008 01  19.99476  14 31 01.24   -14 33 02.0   22.2R 469707    250  S~06Aq      
2008 01  20.00101  14 31 01.26   -14 33 02.1         469707    250  S~06Aq      
2008 01  20.00726  14 31 01.28   -14 33 02.1         469707    250  S~06Aq      
2008 01  20.01420  14 31 01.30   -14 33 02.2         469707    250  S~06Aq      
2008 04  05.34617  14 28 55.29   -14 13 53.5   21.6R 469707    688  Cy5743      
2008 04  05.44017  14 28 54.80   -14 13 50.6         469707    688  Cy5743      
2011 06  02.32550  14 53 40.738  -14 05 18.39  21.8w 469707    F51  C~1vVP      
2011 06  02.33879  14 53 40.667  -14 05 17.97  21.8w 469707    F51  C~1vVP      
2011 06  02.35206  14 53 40.599  -14 05 17.53  21.9w 469707    F51  C~1vVP      
2013 04  15.49818  15 18 23.604  -14 37 18.93  21.9w 469707    F51  C~1vVP      
2013 04  15.51244  15 18 23.524  -14 37 18.42  22.0w 469707    F51  C~1vVP      
2013 04  15.52667  15 18 23.450  -14 37 18.11  21.9w 469707    F51  C~1vVP      
2013 04  15.54096  15 18 23.385  -14 37 17.37  22.2w 469707    F51  C~1vVP      
2014 02  28.55186  15 30 37.135  -14 56 19.58  22.2w 469707    F51  C~1vVP      
2014 02  28.56380  15 30 37.125  -14 56 19.15  22.3w 469707    F51  C~1vVP      
2014 02  28.57574  15 30 37.117  -14 56 19.02  22.1w 469707    F51  C~1vVP      
2014 02  28.58767  15 30 37.122  -14 56 19.21  22.2w 469707    F51  C~1vVP      
2014 05  10.41683  15 25 53.500  -14 25 58.25  21.6i 469707    F51  C~1vVP      
2014 05  10.42888  15 25 53.439  -14 25 57.77  21.6i 469707    F51  C~1vVP      
2014 05  10.44086  15 25 53.342  -14 25 57.49  21.5i 469707    F51  C~1vVP      
2014 05  24.36710  15 24 26.946  -14 19 17.39  22.0w 469707    F51  C~1vVP      
2014 05  24.37972  15 24 26.862  -14 19 16.98  21.9w 469707    F51  C~1vVP      
2014 05  24.43378  15 24 26.531  -14 19 15.58  21.8w 469707    F51  C~1vVP      
2014 05  24.44641  15 24 26.450  -14 19 15.17  22.1w 469707    F51  C~1vVP      
2014 06  03.41113  15 23 27.019  -14 14 54.56  22.1w 469707    F51  C~1vVP      
2014 06  03.42384  15 23 26.952  -14 14 54.28  22.0w 469707    F51  C~1vVP      
2014 06  03.43654  15 23 26.869  -14 14 54.07  21.8w 469707    F51  C~1vVP      
2014 06  03.44921  15 23 26.804  -14 14 53.61  22.2w 469707    F51  C~1vVP      
2015 01  26.64965  15 39 01.778  -14 59 19.45  22.2w 469707    F51  C~1vVP      
2015 01  26.65296  15 39 01.772  -14 59 20.00  22.2w 469707    F51  C~1vVP      
2015 01  26.65626  15 39 01.805  -14 59 19.84  22.1w 469707    F51  C~1vVP      
2015 01  26.65959  15 39 01.831  -14 59 19.93  22.1w 469707    F51  C~1vVP      
2015 06  23.35545  15 31 33.220  -14 08 32.53  21.7r 469707    F51  C~1vVP      
2015 06  23.35954  15 31 33.191  -14 08 32.43  21.4r 469707    F51  C~1vVP      
2015 06  23.36795  15 31 33.154  -14 08 32.22  21.9r 469707    F51  C~1vVP      
2015 06  23.38436  15 31 33.067  -14 08 32.09  21.8r 469707    F51  C~1vVP      
2015 06  23.39277  15 31 33.027  -14 08 31.76  21.6r 469707    F51  C~1vVP      
2015 06  23.39666  15 31 33.013  -14 08 31.97  21.8r 469707    F51  C~1vVP      
2016 05  29.35196  15 43 33.152  -14 15 51.23  22.1R 469707    G37              
2016 05  29.38778  15 43 32.941  -14 15 50.41        469707    G37              

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    -0.26       0.00     1.01
  2   0.0027      0.00     0.16       0.00     0.02
  3   0.0029      0.00     0.18       0.00    -0.06
  4   0.0789      0.00     0.10       0.00     0.23
  5   0.0816      0.00    -0.06       0.00     0.17
  6   0.0818      0.00     0.06       0.00     0.41
  7   0.0820      0.00     0.20       0.00     0.19
  8   0.1579      0.00     0.21       0.00     0.14
  9   0.1582      0.00     0.14       0.00     0.20
 10   0.1637      0.00    -0.04       0.00     0.13
 11   0.1638      0.00     0.02       0.00     0.09
 12   0.3275      0.00    -0.28       0.00     0.22
 13   0.3303      0.00    -0.17       0.00     0.06
 14   0.3330      0.00    -0.36       0.00     0.07
 15   1.0319      0.00    -0.19       0.00     0.74
 16   1.0320      0.00    -0.40       0.00     0.20
 17   1.0427      0.00     0.02       0.00     0.05
 18   1.0429      0.00     0.10       0.00     0.10
 19   1.0478      0.00    -0.00       0.00    -0.20
 20   1.0569      0.00     0.69       0.00    -0.22
 21   1.0570      0.00     0.66       0.00    -0.20
 22   1.0570      0.00     0.44       0.00    -0.32
 23   1.0593      0.00     0.10       0.00     0.10
 24   1.0594      0.00     0.17       0.00     0.01
 25   1.0594      0.00     0.45       0.00    -0.38
 26   1.1249      0.00    -0.20       0.00    -0.58
 27   1.1249      0.00    -0.14       0.00    -0.61
 28   1.1249      0.00    -0.10       0.00    -0.59
 29   2.7779      0.00    -0.67       0.00    -0.28
 30   2.7779      0.00    -0.67       0.00    -0.33
 31   2.7779      0.00    -0.66       0.00    -0.27
 32   2.7779      0.00    -0.68       0.00    -0.32
 33   2.9869      0.00     0.17       0.00     0.08
 34   2.9872      0.00     0.70       0.00    -0.18
 35   6.1436      0.00     0.18       0.00    -0.09
 36   6.1437      0.00     0.22       0.00    -0.04
 37   6.1437      0.00     0.30       0.00     0.03
 38   8.0140      0.00     0.15       0.00     0.01
 39   8.0141      0.00     0.13       0.00     0.09
 40   8.0141      0.00     0.20       0.00    -0.03
 41   8.0142      0.00     0.41       0.00     0.27
 42   8.8876      0.00     0.17       0.00    -0.12
 43   8.8876      0.00     0.09       0.00     0.14
 44   8.8876      0.00     0.05       0.00     0.09
 45   8.8877      0.00     0.19       0.00    -0.28
 46   9.0816      0.00     0.24       0.00    -0.12
 47   9.0816      0.00     0.47       0.00     0.00
 48   9.0816      0.00     0.16       0.00    -0.07
 49   9.1198      0.00     0.14       0.00    -0.02
 50   9.1198      0.00     0.06       0.00     0.05
 51   9.1200      0.00     0.15       0.00    -0.04
 52   9.1200      0.00     0.12       0.00     0.02
 53   9.1473      0.00    -0.05       0.00    -0.02
 54   9.1473      0.00     0.07       0.00    -0.05
 55   9.1473      0.00    -0.05       0.00    -0.16
 56   9.1474      0.00     0.09       0.00    -0.01
 57   9.7968      0.00    -0.03       0.00     0.31
 58   9.7968      0.00    -0.34       0.00    -0.23
 59   9.7968      0.00    -0.05       0.00    -0.07
 60   9.7968      0.00     0.13       0.00    -0.16
 61  10.2012      0.00    -0.02       0.00     0.06
 62  10.2012      0.00    -0.16       0.00     0.09
 63  10.2012      0.00    -0.11       0.00     0.16
 64  10.2013      0.00    -0.24       0.00     0.01
 65  10.2013      0.00    -0.24       0.00     0.20
 66  10.2013      0.00    -0.17       0.00    -0.07
 67  11.1348      0.00    -0.11       0.00     0.16
 68  11.1349      0.00     0.05       0.00     0.12

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.

469707    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.185    39.185    39.185
ecceobj         0.231     0.231     0.231
incobj         14.724    14.724    14.724
qmin           27.344    27.344    27.344
qmax           52.077    52.077    52.077
amean          39.455    39.455    39.455
amin           39.082    39.082    39.082
amax           39.939    39.939    39.939
emean           0.238     0.238     0.238
emin            0.171     0.171     0.171
emax            0.306     0.306     0.306
imean          15.269    15.269    15.269
imin           11.291    11.291    11.291
imax           18.010    18.010    18.010
excite_mean     0.358     0.358     0.358
fracstop        1.000     1.000     1.000
cjmean          2.905     2.905     2.905

libcent 0       180.8     180.8     180.8
libamp  0        44.3      44.3      44.3
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       232.2     232.2     232.2
kozaiamp        180.0     180.0     180.0