Orbit Fit and Astrometric record for 444025

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: 444025    
# Created Mon Dec 18 02:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   70 observations of   70
# Arc:  12.83y
# First observation: 2004/04/26
#  Last observation: 2017/02/23
# Chi-squared of fit:    96.68 DOF:  134 RMS:  0.21
# Min/Max residuals:    -0.46    0.78
# Exact a, adot, b, bdot, g, gdot:
  1.453952E-05  2.101695E-02 -2.562293E-07 -1.147201E-03  2.273488E-02 -9.392177E-04
# 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
    1.121260 -154.236561   -0.188797    0.019369   -0.986496  2453121.832763
# Heliocentric elements and errors
Epoch:              2453122.5000  =  2004/04/27
Mean Anomaly:          246.96438 +/-     0.000
Argument of Peri:      278.02531 +/-     0.000
Long of Asc Node:       45.32963 +/-     0.000
Inclination:             3.30972 +/-     0.000
Eccentricity:         0.04210913 +/-    0.0000
Semi-Major Axis:     44.18197223 +/-    0.0000
Time of Perihelion: 2486803.0280 +/-       0.0
Perihelion:          42.32150788 +/-    0.0000
Aphelion:            46.04243658 +/-    0.0000
Period (y)              293.6810 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.41550019 +/-    0.0000
Ecliptic Y          -19.71223473 +/-    0.0000
Ecliptic Z            0.86072780 +/-    0.0000
Ecliptic XDOT         0.00119652 +/-    0.0000
Ecliptic YDOT        -0.00223834 +/-    0.0000
Ecliptic ZDOT        -0.00014021 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.97474751 +/-    0.0000
Geocenter to KBO     43.98533221 +/-    0.0000
# Hcoef:  7.10

The following table shows the complete astrometric record for 444025. 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 (444025) followed by the observatory code and reference code for the source of the astrometry.

2004 04  26.33202  13 37 11.24   -08 54 41.6   23.5g 444025    568  C~0VDp      
2004 04  26.35319  13 37 11.15   -08 54 41.0   23.4g 444025    568  C~0VDp      
2004 04  26.37961  13 37 11.04   -08 54 40.5   23.4g 444025    568  C~0VDp      
2004 06  20.27381  13 34 18.99   -08 39 34.7   23.4i 444025    568  C~0VDp      
2004 06  20.32279  13 34 18.91   -08 39 34.3   23.2i 444025    568  C~0VDp      
2004 06  20.37510  13 34 18.83   -08 39 34.1   23.0i 444025    568  C~0VDp      
2005 05  04.34669  13 41 06.74   -09 21 35.3   23.3r 444025    568  C~0VDp      
2005 05  04.38095  13 41 06.60   -09 21 34.5   23.4r 444025    568  C~0VDp      
2005 05  04.42217  13 41 06.43   -09 21 33.6   23.3r 444025    568  C~0VDp      
2005 05  05.39171  13 41 02.45   -09 21 11.8   23.5r 444025    568  C~0VDp      
2006 01  28.51285  13 50 27.83   -10 18 34.7         444025    675  C~0VDp      
2006 01  29.53393  13 50 27.77   -10 18 33.7         444025    675  C~0VDp      
2006 05  02.22137  13 45 45.81   -09 52 12.1   22.5r 444025    695  C~0VDp      
2006 05  03.33462  13 45 41.14   -09 51 46.4   23.4r 444025    695  C~0VDp      
2013 03  07.53768  14 21 17.955  -13 31 48.82  23.4r 444025    568  C~1XPw      
2013 03  07.59466  14 21 17.826  -13 31 48.16  22.9r 444025    568  C~1XPw      
2013 03  13.41693  14 21 01.97   -13 30 29.5   22.9R 444025    695  C~0ud8      
2013 03  13.49278  14 21 01.74   -13 30 28.2         444025    695  C~0ud8      
2013 03  14.48807  14 20 58.80   -13 30 13.8         444025    695  C~0ud8      
2013 04  04.53866  14 19 43.503  -13 24 02.38  23.1r 444025    568  C~1XPw      
2013 04  07.39916  14 19 31.765  -13 23 04.58  23.3r 444025    568  C~1XPw      
2013 04  07.44301  14 19 31.578  -13 23 03.65  23.3r 444025    568  C~1XPw      
2013 04  08.43164  14 19 27.457  -13 22 43.41  23.3r 444025    568  C~1XPw      
2013 04  08.47687  14 19 27.248  -13 22 42.46  23.1r 444025    568  C~1XPw      
2013 04  09.37822  14 19 23.474  -13 22 23.78  23.4r 444025    568  C~1XPw      
2013 04  09.42145  14 19 23.289  -13 22 22.86  23.2r 444025    568  C~1XPw      
2013 04  09.46461  14 19 23.106  -13 22 21.98  23.5r 444025    568  C~1XPw      
2013 05  11.46622  14 17 02.432  -13 10 52.17  23.3r 444025    568  C~1XPw      
2013 05  12.46349  14 16 58.149  -13 10 31.33  23.5r 444025    568  C~1XPw      
2013 06  12.35950  14 15 04.385  -13 01 24.33        444025    568  C~1XPw      
2013 06  12.40439  14 15 04.257  -13 01 23.87  23.5r 444025    568  C~1XPw      
2013 07  04.32314  14 14 17.938  -12 57 55.26        444025    568  C~1XPw      
2013 07  06.32704  14 14 15.539  -12 57 45.52  23.5r 444025    568  C~1XPw      
2013 08  02.25851  14 14 15.491  -12 58 23.08  23.8r 444025    568  C~1XPw      
2013 08  05.25929  14 14 19.289  -12 58 46.88  23.2r 444025    568  C~1XPw      
2014 02  01.64281  14 26 31.496  -14 02 03.23  23.4r 444025    568  C~1XPw      
2014 02  02.64065  14 26 31.923  -14 02 05.57  23.5r 444025    568  C~1XPw      
2014 02  24.58951  14 26 18.794  -14 01 03.01  23.6r 444025    568  C~1XPw      
2014 02  25.57248  14 26 17.227  -14 00 55.50  23.6r 444025    568  C~1XPw      
2014 02  28.52057  14 26 12.058  -14 00 30.42  23.4r 444025    568  C~1XPw      
2014 04  04.46261  14 24 24.752  -13 51 52.15  23.4r 444025    568  C~1XPw      
2014 04  04.48274  14 24 24.667  -13 51 51.86  23.1r 444025    568  C~1XPw      
2014 04  05.48108  14 24 20.622  -13 51 32.68  23.2r 444025    568  C~1XPw      
2014 04  05.53642  14 24 20.413  -13 51 31.33  23.3r 444025    568  C~1XPw      
2014 05  22.44598  14 20 57.023  -13 35 13.21  23.2r 444025    568  C~1XPw      
2014 05  25.43819  14 20 45.110  -13 34 16.58  23.4r 444025    568  C~1XPw      
2014 06  26.33042  14 19 07.479  -13 26 42.09        444025    568  C~1XPw      
2014 07  18.29682  14 18 42.037  -13 25 01.90  23.5r 444025    568  C~1XPw      
2015 04  25.29273  14 27 38.35   -14 12 22.3         444025    W84  C~2KNU      
2015 04  25.32723  14 27 38.18   -14 12 21.7   24.0V 444025    W84  C~2KNU      
2015 04  25.36171  14 27 38.02   -14 12 21.1         444025    W84  C~2KNU      
2015 05  22.17648  14 25 40.31   -14 03 05.9   24.0R 444025    695  C~1iDy      
2015 05  22.26441  14 25 39.96   -14 03 04.8         444025    695  C~1iDy      
2016 02  14.57372  14 35 48.758  -14 55 32.13  23.7r 444025    568  C~2KVA      
2016 02  14.57878  14 35 48.748  -14 55 32.37  25.3u 444025    568  C~2KVA      
2016 02  14.60872  14 35 48.724  -14 55 32.25  25.5u 444025    568  C~2KVA      
2016 03  13.36091  14 35 03.66   -14 52 08.3   23.9R 444025    G37  C~1q79      
2016 03  13.42370  14 35 03.49   -14 52 07.6         444025    G37  C~1q79      
2016 03  13.49843  14 35 03.26   -14 52 06.7         444025    G37  C~1q79      
2016 05  01.27754  14 31 52.13   -14 37 23.0   23.9V 444025    W84  C~1sbd      
2016 05  01.28448  14 31 52.13   -14 37 23.3         444025    W84  C~1sbd      
2016 05  01.29142  14 31 52.12   -14 37 23.4         444025    W84  C~1sbd      
2016 05  03.30962  14 31 42.94   -14 36 41.0         444025    W84  C~1sbd      
2016 05  03.31656  14 31 42.94   -14 36 40.9         444025    W84  C~1sbd      
2016 05  03.32350  14 31 42.95   -14 36 41.1         444025    W84  C~1sbd      
2016 05  04.26502  14 31 38.63   -14 36 20.8         444025    W84  C~1sbd      
2016 05  04.27196  14 31 38.62   -14 36 20.9         444025    W84  C~1sbd      
2016 05  04.27890  14 31 38.61   -14 36 20.9         444025    W84  C~1sbd      
2016 05  06.41084  14 31 29.028  -14 35 36.80  23.4r 444025    568  C~2KVA      
2017 02  23.64639  14 40 23.183  -15 21 21.94        444025    568  C~2KVA      

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    -0.05       0.00     0.22
  2   0.0001      0.00     0.04       0.00    -0.02
  3   0.0001      0.00     0.11       0.00    -0.14
  4   0.1504      0.00     0.00       0.00     0.30
  5   0.1506      0.00    -0.06       0.00     0.39
  6   0.1507      0.00    -0.06       0.00     0.25
  7   1.0213      0.00     0.23       0.00     0.02
  8   1.0214      0.00     0.29       0.00     0.05
  9   1.0215      0.00     0.34       0.00     0.03
 10   1.0241      0.00     0.31       0.00     0.23
 11   1.7582      0.00    -0.10       0.00    -0.15
 12   1.7610      0.00    -0.20       0.00    -0.23
 13   2.0148      0.00    -0.21       0.00    -0.21
 14   2.0178      0.00     0.04       0.00     0.29
 15   8.8630      0.00    -0.02       0.00    -0.11
 16   8.8631      0.00     0.26       0.00    -0.16
 17   8.8791      0.00     0.23       0.00     0.03
 18   8.8793      0.00     0.19       0.00     0.23
 19   8.8820      0.00     0.28       0.00     0.06
 20   8.9396      0.00    -0.19       0.00    -0.13
 21   8.9475      0.00    -0.09       0.00    -0.25
 22   8.9476      0.00    -0.11       0.00    -0.22
 23   8.9503      0.00    -0.04       0.00    -0.30
 24   8.9504      0.00    -0.28       0.00    -0.28
 25   8.9529      0.00    -0.17       0.00    -0.27
 26   8.9530      0.00    -0.16       0.00    -0.24
 27   8.9531      0.00    -0.12       0.00    -0.25
 28   9.0408      0.00     0.02       0.00    -0.15
 29   9.0435      0.00    -0.03       0.00    -0.16
 30   9.1281      0.00    -0.05       0.00     0.05
 31   9.1282      0.00     0.02       0.00    -0.10
 32   9.1882      0.00    -0.06       0.00    -0.13
 33   9.1937      0.00     0.28       0.00    -0.06
 34   9.2674      0.00    -0.04       0.00     0.04
 35   9.2756      0.00    -0.04       0.00    -0.05
 36   9.7695      0.00     0.02       0.00    -0.01
 37   9.7722      0.00    -0.04       0.00    -0.18
 38   9.8323      0.00     0.01       0.00    -0.11
 39   9.8350      0.00    -0.01       0.00    -0.15
 40   9.8431      0.00     0.07       0.00    -0.06
 41   9.9388      0.00    -0.05       0.00    -0.07
 42   9.9388      0.00    -0.08       0.00    -0.17
 43   9.9415      0.00    -0.27       0.00    -0.46
 44   9.9417      0.00     0.04       0.00    -0.20
 45  10.0701      0.00     0.10       0.00    -0.07
 46  10.0783      0.00    -0.02       0.00    -0.10
 47  10.1656      0.00     0.08       0.00    -0.13
 48  10.2258      0.00    -0.02       0.00    -0.11
 49  10.9951      0.00     0.16       0.00     0.19
 50  10.9952      0.00    -0.04       0.00     0.06
 51  10.9953      0.00    -0.09       0.00    -0.08
 52  11.0687      0.00    -0.06       0.00     0.50
 53  11.0689      0.00     0.21       0.00    -0.10
 54  11.8035      0.00     0.02       0.00     0.14
 55  11.8036      0.00    -0.10       0.00    -0.11
 56  11.8036      0.00    -0.22       0.00    -0.04
 57  11.8796      0.00     0.15       0.00     0.19
 58  11.8798      0.00     0.23       0.00     0.12
 59  11.8800      0.00    -0.09       0.00     0.08
 60  12.0135      0.00    -0.13       0.00     0.69
 61  12.0136      0.00     0.34       0.00     0.24
 62  12.0136      0.00     0.67       0.00    -0.00
 63  12.0191      0.00    -0.32       0.00     0.21
 64  12.0191      0.00     0.16       0.00     0.17
 65  12.0191      0.00     0.78       0.00    -0.18
 66  12.0217      0.00    -0.38       0.00     0.48
 67  12.0217      0.00    -0.05       0.00     0.23
 68  12.0218      0.00     0.28       0.00     0.09
 69  12.0276      0.00     0.34       0.00    -0.03
 70  12.8304      0.00     0.10       0.00     0.03

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.

444025    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.713    43.713    43.713
ecceobj         0.049     0.049     0.049
incobj          3.325     3.325     3.325
qmin           41.196    41.194    41.198
qmax           47.081    47.075    47.086
amean          44.026    44.026    44.026
amin           43.683    43.689    43.680
amax           44.382    44.372    44.381
emean           0.045     0.045     0.045
emin            0.028     0.028     0.028
emax            0.061     0.061     0.061
imean           2.334     2.334     2.334
imin            1.600     1.600     1.600
imax            2.958     2.958     2.958
excite_mean     0.061     0.061     0.061
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       189.2     189.3     189.2
kozaiamp        180.0     180.0     180.0