Orbit Fit and Astrometric record for 469704

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: 469704    
# Created Mon Oct 23 01:36:50 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   57 observations of   57
# Arc:  14.32y
# First observation: 2000/12/23
#  Last observation: 2015/04/21
# Chi-squared of fit:   163.05 DOF:  108 RMS:  0.30
# Min/Max residuals:    -0.75    1.31
# Exact a, adot, b, bdot, g, gdot:
  1.762495E-05  3.022745E-02  4.543131E-07 -8.202920E-04  2.783781E-02 -2.940973E-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
    0.891650  175.888805    0.972858    0.001521   -0.108709  2451902.013198
# Heliocentric elements and errors
Epoch:              2451902.5000  =  2000/12/24
Mean Anomaly:          311.84865 +/-     0.000
Argument of Peri:      212.25704 +/-     0.000
Long of Asc Node:       24.38201 +/-     0.000
Inclination:             1.77460 +/-     0.000
Eccentricity:         0.14718661 +/-    0.0000
Semi-Major Axis:     39.35706709 +/-    0.0000
Time of Perihelion: 2463965.0333 +/-       0.0
Perihelion:          33.56423372 +/-    0.0000
Aphelion:            45.14990047 +/-    0.0000
Period (y)              246.9121 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -35.85962290 +/-    0.0000
Ecliptic Y            3.55745325 +/-    0.0000
Ecliptic Z            0.55904039 +/-    0.0000
Ecliptic XDOT         0.00006601 +/-    0.0000
Ecliptic YDOT        -0.00298179 +/-    0.0000
Ecliptic ZDOT        -0.00008499 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.04006019 +/-    0.0000
Geocenter to KBO     35.92244327 +/-    0.0000
# Hcoef:  6.75

The following table shows the complete astrometric record for 469704. 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 (469704) followed by the observatory code and reference code for the source of the astrometry.

2000 12  23.512455 11 46 19.50   +02 27 09.1   22.2V 469704    645  C~2KNp      
2000 12  23.513284 11 46 19.48   +02 27 09.1   22.2V 469704    645  C~2KNp      
2000 12  23.515772 11 46 19.58   +02 27 09.0   23.2V 469704    645  C~2KNp      
2005 03  09.43065  12 08 41.39   -00 10 26.3   22.1R 469704    695  Cn0309      
2005 03  10.34105  12 08 36.80   -00 09 56.7         469704    695  Cn0309      
2005 03  10.47449  12 08 36.11   -00 09 52.1         469704    695  Cn0309      
2005 04  10.23654  12 05 58.22   +00 06 55.8   22.2R 469704    695  Cn3133      
2005 04  11.23555  12 05 53.34   +00 07 25.5         469704    695  Cn3133      
2005 04  11.31598  12 05 52.97   +00 07 28.4         469704    695  Cn3133      
2005 04  15.14171  12 05 34.68   +00 09 22.5   21.4R 469704    304  Cn3360      
2005 04  15.16656  12 05 34.56   +00 09 23.4         469704    304  Cn3360      
2005 06  07.97630  12 03 04.09   +00 24 19.7   21.3R 469704    304  Cn6541      
2005 06  08.06836  12 03 04.02   +00 24 19.7         469704    304  Cn6541      
2005 12  01.48298  12 17 20.08   -01 10 43.3   22.3R 469704    695  Cp9906      
2005 12  01.52629  12 17 20.23   -01 10 44.4         469704    695  Cp9906      
2005 12  02.51007  12 17 23.77   -01 11 06.6         469704    695  Cp9906      
2006 02  25.37972  12 16 19.38   -01 03 25.3   22.4R 469704    688  Cr3594      
2006 02  25.49784  12 16 18.82   -01 03 21.4         469704    688  Cr3594      
2006 04  26.06470  12 11 24.75   -00 32 08.9   21.4R 469704    807  Cr3594      
2006 04  26.14817  12 11 24.38   -00 32 06.7         469704    807  Cr3594      
2006 04  28.04814  12 11 16.46   -00 31 17.9         469704    807  Cr3594      
2008 05  01.17656  12 24 23.53   -02 03 21.6   23.4R 469704    688  Cy8961      
2008 05  01.23876  12 24 23.27   -02 03 19.8         469704    688  Cy8961      
2009 03  25.31864  12 34 13.65   -03 09 43.7   22.2R 469704    688  C~05XD      
2009 03  25.37341  12 34 13.35   -03 09 42.0         469704    688  C~05XD      
2012 01  03.48310  12 58 19.84   -05 53 07.1   22.1R 469704    291  C~0dnr      
2012 01  03.51392  12 58 19.88   -05 53 07.4   21.9R 469704    291  C~0dnr      
2012 02  28.52142  12 56 57.199  -05 44 36.20  22.2w 469704    F51  C~1vVO      
2012 02  28.53579  12 56 57.136  -05 44 35.88  22.3w 469704    F51  C~1vVO      
2012 02  28.55021  12 56 57.078  -05 44 35.24  22.2w 469704    F51  C~1vVO      
2012 02  28.56464  12 56 57.032  -05 44 35.12  22.2w 469704    F51  C~1vVO      
2013 04  11.37957  13 00 25.680  -06 10 20.82  22.3w 469704    F51  C~1vVO      
2013 04  11.39321  13 00 25.597  -06 10 20.41  22.5w 469704    F51  C~1vVO      
2013 04  11.40695  13 00 25.516  -06 10 20.18  22.1w 469704    F51  C~1vVO      
2013 04  11.42067  13 00 25.456  -06 10 19.72  22.2w 469704    F51  C~1vVO      
2014 02  28.49990  13 10 58.173  -07 18 38.54  22.3w 469704    F51  C~1vVO      
2014 02  28.51117  13 10 58.134  -07 18 38.28  22.2w 469704    F51  C~1vVO      
2014 02  28.52240  13 10 58.086  -07 18 38.10  22.2w 469704    F51  C~1vVO      
2014 02  28.53368  13 10 58.031  -07 18 37.77  22.3w 469704    F51  C~1vVO      
2015 03  21.35260  13 16 34.33   -07 56 36.7   21.3R 469704    290  C~1OST      
2015 03  21.35641  13 16 34.31   -07 56 36.4   21.2R 469704    290  C~1OST      
2015 03  21.36020  13 16 34.29   -07 56 36.5   21.3R 469704    290  C~1OST      
2015 03  21.36397  13 16 34.26   -07 56 36.2   21.4R 469704    290  C~1OST      
2015 03  21.36774  13 16 34.25   -07 56 36.0   21.1R 469704    290  C~1OST      
2015 03  21.37153  13 16 34.22   -07 56 36.3   20.9R 469704    290  C~1OST      
2015 03  21.47678  13 16 33.714  -07 56 32.56  22.3w 469704    F51  C~1vVO      
2015 03  21.48809  13 16 33.626  -07 56 32.41  22.3w 469704    F51  C~1vVO      
2015 03  21.49938  13 16 33.584  -07 56 32.06  22.2w 469704    F51  C~1vVO      
2015 03  21.51068  13 16 33.523  -07 56 31.63  22.3w 469704    F51  C~1vVO      
2015 04  20.38119  13 13 54.610  -07 40 49.97  22.6w 469704    F51  C~1vVO      
2015 04  20.39474  13 13 54.549  -07 40 49.18  22.3w 469704    F51  C~1vVO      
2015 04  20.40823  13 13 54.449  -07 40 48.92  22.2w 469704    F51  C~1vVO      
2015 04  20.42169  13 13 54.393  -07 40 48.51  22.2w 469704    F51  C~1vVO      
2015 04  21.40421  13 13 49.159  -07 40 17.66  22.3w 469704    F51  C~1vVO      
2015 04  21.41775  13 13 49.085  -07 40 17.12  21.9w 469704    F51  C~1vVO      
2015 04  21.43132  13 13 49.016  -07 40 16.52  22.1w 469704    F51  C~1vVO      
2015 04  21.44490  13 13 48.958  -07 40 16.33  22.2w 469704    F51  C~1vVO      

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    -0.23       0.00     1.31
  2   0.0000      0.00    -0.47       0.00    -0.13
  3   0.0000      0.00     1.02       0.00    -0.23
  4   4.2079      0.00    -0.02       0.00     0.17
  5   4.2103      0.00     0.08       0.00     0.06
  6   4.2107      0.00     0.04       0.00     0.30
  7   4.2949      0.00     0.37       0.00     0.78
  8   4.2977      0.00     0.10       0.00    -0.14
  9   4.2979      0.00     0.51       0.00     0.31
 10   4.3084      0.00    -0.35       0.00    -0.42
 11   4.3084      0.00    -0.37       0.00    -0.25
 12   4.4558      0.00    -0.17       0.00    -0.67
 13   4.4560      0.00    -0.54       0.00    -0.75
 14   4.9390      0.00    -0.24       0.00     0.14
 15   4.9391      0.00    -0.32       0.00     0.04
 16   4.9418      0.00    -0.27       0.00     0.20
 17   5.1742      0.00     0.04       0.00    -0.28
 18   5.1745      0.00    -0.27       0.00     0.18
 19   5.3376      0.00     0.07       0.00     0.22
 20   5.3378      0.00    -0.07       0.00     0.23
 21   5.3430      0.00    -0.08       0.00    -0.10
 22   7.3529      0.00     0.64       0.00    -0.05
 23   7.3531      0.00     0.68       0.00     0.16
 24   8.2514      0.00     0.17       0.00     0.36
 25   8.2515      0.00     0.07       0.00     0.24
 26  11.0280      0.00     0.46       0.00    -0.05
 27  11.0281      0.00     0.41       0.00    -0.06
 28  11.1814      0.00     0.09       0.00    -0.13
 29  11.1814      0.00     0.04       0.00    -0.17
 30  11.1815      0.00     0.07       0.00     0.11
 31  11.1815      0.00     0.29       0.00    -0.14
 32  12.2981      0.00     0.16       0.00     0.12
 33  12.2981      0.00     0.03       0.00     0.09
 34  12.2981      0.00    -0.06       0.00    -0.13
 35  12.2982      0.00     0.17       0.00    -0.11
 36  13.1827      0.00     0.04       0.00     0.18
 37  13.1827      0.00     0.12       0.00     0.17
 38  13.1828      0.00     0.07       0.00     0.09
 39  13.1828      0.00    -0.08       0.00     0.16
 40  14.2391      0.00     0.06       0.00    -0.41
 41  14.2391      0.00     0.05       0.00    -0.22
 42  14.2391      0.00     0.04       0.00    -0.43
 43  14.2392      0.00    -0.12       0.00    -0.24
 44  14.2392      0.00     0.02       0.00    -0.15
 45  14.2392      0.00    -0.14       0.00    -0.57
 46  14.2395      0.00     0.13       0.00     0.01
 47  14.2395      0.00    -0.32       0.00    -0.17
 48  14.2395      0.00    -0.08       0.00    -0.16
 49  14.2396      0.00    -0.13       0.00    -0.06
 50  14.3213      0.00     0.07       0.00    -0.05
 51  14.3214      0.00     0.26       0.00     0.31
 52  14.3214      0.00    -0.14       0.00     0.15
 53  14.3214      0.00     0.12       0.00     0.13
 54  14.3241      0.00    -0.03       0.00     0.01
 55  14.3242      0.00    -0.04       0.00     0.12
 56  14.3242      0.00     0.03       0.00     0.29
 57  14.3243      0.00     0.26       0.00     0.06

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.

469704    quality flag:3

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

axisobj        39.254    39.253    39.254
ecceobj         0.147     0.147     0.147
incobj          1.777     1.777     1.777
qmin           32.662    32.667    32.658
qmax           46.896    46.895    46.896
amean          39.458    39.458    39.458
amin           38.955    38.949    38.955
amax           40.001    39.998    40.004
emean           0.155     0.155     0.155
emin            0.136     0.136     0.136
emax            0.174     0.174     0.173
imean           1.937     1.937     1.938
imin            0.902     0.902     0.902
imax            2.582     2.582     2.583
excite_mean     0.159     0.159     0.159
fracstop        1.000     1.000     1.000
cjmean          3.023     3.023     3.023

libcent 0       180.1     179.8     180.5
libamp  0       111.1     111.1     111.6
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       173.9     174.0     173.8
kozaiamp        180.0     180.0     180.0