Orbit Fit and Astrometric record for 225088

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: 225088    
# Created Sun Oct 26 01:36:54 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   71 observations of   71
# Arc:  26.18y
# First observation: 1985/08/19
#  Last observation: 2011/10/24
# Chi-squared of fit:   218.41 DOF:  136 RMS:  0.31
# Min/Max residuals:    -0.87    0.89
# Exact a, adot, b, bdot, g, gdot:
  8.011239E-06  6.229660E-03  2.254354E-06  3.574027E-03  1.278087E-02  3.888029E-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
   -8.228769  -37.063755   -0.065933   -0.143584   -0.993569  2446296.691479
# Heliocentric elements and errors
Epoch:              2446296.5000  =  1985/08/19
Mean Anomaly:           83.37121 +/-     0.000
Argument of Peri:      207.68412 +/-     0.000
Long of Asc Node:      336.90775 +/-     0.000
Inclination:            30.67223 +/-     0.000
Eccentricity:         0.50083863 +/-    0.0000
Semi-Major Axis:     67.51723635 +/-    0.0000
Time of Perihelion: 2399368.2884 +/-       0.0
Perihelion:          33.70199606 +/-    0.0000
Aphelion:           101.33247664 +/-    0.0000
Period (y)              554.7920 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           62.63448302 +/-    0.0000
Ecliptic Y          -47.23140507 +/-    0.0000
Ecliptic Z          -11.19830068 +/-    0.0000
Ecliptic XDOT         0.00155621 +/-    0.0000
Ecliptic YDOT         0.00050650 +/-    0.0000
Ecliptic ZDOT         0.00063835 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   79.24156800 +/-    0.0000
Geocenter to KBO     78.24159931 +/-    0.0000
# Hcoef:  1.91

The following table shows the complete astrometric record for 225088. 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 (225088) followed by the observatory code and reference code for the source of the astrometry.

1985 08  19.19084  21 52 39.47   -21 37 43.0         225088    262   ~08Uf      
1991 10  01.47296  21 57 30.24   -19 52 51.6         225088    260   ~08Uf      
2001 08  27.25970  22 09 05.05   -16 51 27.3   20.5V 225088    644  C~033v      
2002 08  11.47021  22 10 43.58   -16 31 06.0   19.9V 225088    644  C~033v      
2002 08  18.43519  22 10 25.76   -16 32 32.8   20.9V 225088    644  C~033v      
2002 08  19.34687  22 10 23.47   -16 32 43.7   20.4V 225088    644  C~033v      
2002 08  19.40984  22 10 23.28   -16 32 45.6   20.7V 225088    644  C~033v      
2002 09  15.25204  22 09 15.26   -16 37 42.6   20.8V 225088    644  C~033v      
2002 09  15.29421  22 09 15.13   -16 37 42.2   20.8V 225088    644  C~033v      
2007 07  17.39416  22 16 18.15   -15 02 01.3   21.4R 225088    675  C~033v      
2007 07  17.44407  22 16 18.06   -15 02 00.8   21.7R 225088    675  C~033v      
2007 07  18.33050  22 16 16.33   -15 02 10.5   21.3R 225088    675  C~033v      
2007 07  18.37190  22 16 16.21   -15 02 10.5   21.4R 225088    675  C~033v      
2007 07  21.37688  22 16 10.07   -15 02 44.7         225088    675  C~033v      
2007 08  08.27766  22 15 29.58   -15 06 17.6         225088    675  C~033v      
2007 08  08.37322  22 15 29.36   -15 06 19.2         225088    675  C~033v      
2007 08  08.46937  22 15 29.12   -15 06 20.0         225088    675  C~033v      
2007 09  05.28307  22 14 19.50   -15 11 54.4         225088    675  C~033v      
2007 09  05.37887  22 14 19.24   -15 11 55.2         225088    675  C~033v      
2007 10  15.09816  22 12 55.32   -15 17 17.8         225088    675  C~033v      
2007 10  16.09672  22 12 53.78   -15 17 21.9         225088    675  C~033v      
2007 10  16.23457  22 12 53.57   -15 17 22.6         225088    675  C~033v      
2008 06  12.47359  22 17 58.95   -14 40 50.9         225088    675  C~033v      
2008 06  16.43318  22 17 55.82   -14 41 11.6         225088    675  C~033v      
2008 06  17.43780  22 17 54.91   -14 41 17.5         225088    675  C~033v      
2008 07  03.37380  22 17 35.37   -14 43 15.9         225088    675  C~033v      
2008 07  03.48126  22 17 35.22   -14 43 16.3         225088    675  C~033v      
2008 07  04.37120  22 17 33.85   -14 43 25.0         225088    675  C~033v      
2008 07  04.46685  22 17 33.67   -14 43 25.7         225088    675  C~033v      
2008 08  06.36075  22 16 26.85   -14 49 27.2   21.2R 225088    675  C~033v      
2008 08  06.40574  22 16 26.76   -14 49 27.6   21.3R 225088    675  C~033v      
2008 08  08.27276  22 16 22.25   -14 49 51.3   21.5R 225088    675  C~033v      
2008 08  08.31672  22 16 22.17   -14 49 51.5   21.4R 225088    675  C~033v      
2008 08  23.03630  22 15 45.67   -14 52 51.8         225088    807  C~033v      
2008 08  23.11179  22 15 45.48   -14 52 52.6         225088    807  C~033v      
2009 10  18.22210  22 14 39.48   -14 44 36.5         225088    568  C~0AbO      
2009 10  18.25183  22 14 39.44   -14 44 36.7         225088    568  C~0AbO      
2009 10  19.27255  22 14 37.98   -14 44 39.7         225088    675  C~0AbO      
2009 11  06.71355  22 14 19.36   -14 45 01.4         225088    250  S~0MPY      
2009 11  06.71594  22 14 19.35   -14 45 01.4         225088    250  S~0MPY      
2009 11  06.71875  22 14 19.35   -14 45 01.4         225088    250  S~0MPY      
2009 11  06.72114  22 14 19.35   -14 45 01.4         225088    250  S~0MPY      
2009 11  06.75498  22 14 19.34   -14 45 01.2         225088    250  S~0MPY      
2009 11  06.76053  22 14 19.33   -14 45 01.2         225088    250  S~0MPY      
2009 11  06.76669  22 14 19.33   -14 45 01.0         225088    250  S~0MPY      
2009 11  06.77225  22 14 19.32   -14 45 01.0         225088    250  S~0MPY      
2009 12  14.23196  22 14 28.75   -14 41 17.8   21.1R 225088    F65  C~0XRp      
2009 12  14.23474  22 14 28.77   -14 41 18.5         225088    F65  C~0XRp      
2009 12  16.24109  22 14 31.06   -14 40 56.3   21.5R 225088    F65  C~0XRp      
2009 12  16.24389  22 14 31.05   -14 40 56.7   21.8  225088    F65  C~0XRp      
2011 09  28.01192  22 17 04.05   -14 09 48.8   20.9R 225088    304  C~0ZOw      
2011 09  28.08383  22 17 03.91   -14 09 49.4         225088    304  C~0ZOw      
2011 09  28.26785  22 17 03.52   -14 09 50.8         225088    304  C~0ZOw      
2011 09  29.01685  22 17 01.98   -14 09 57.1         225088    304  C~0ZOw      
2011 09  29.13325  22 17 01.73   -14 09 58.1         225088    304  C~0ZOw      
2011 09  29.26671  22 17 01.45   -14 09 59.2         225088    304  C~0ZOw      
2011 09  29.99885  22 16 59.97   -14 10 05.1         225088    304  C~0ZOw      
2011 09  30.10147  22 16 59.76   -14 10 05.9         225088    304  C~0ZOw      
2011 09  30.26611  22 16 59.42   -14 10 07.1         225088    304  C~0ZOw      
2011 10  01.00071  22 16 57.94   -14 10 12.8         225088    304  C~0ZOw      
2011 10  01.09332  22 16 57.76   -14 10 13.8         225088    304  C~0ZOw      
2011 10  01.24663  22 16 57.45   -14 10 14.9         225088    304  C~0ZOw      
2011 10  01.99987  22 16 55.97   -14 10 20.6         225088    304  C~0ZOw      
2011 10  02.05015  22 16 55.86   -14 10 21.1         225088    304  C~0ZOw      
2011 10  02.17150  22 16 55.62   -14 10 22.0         225088    304  C~0ZOw      
2011 10  22.99848  22 16 21.45   -14 12 15.0   20.9R 225088    304  C~0Zsw      
2011 10  23.11115  22 16 21.30   -14 12 15.3         225088    304  C~0Zsw      
2011 10  23.20353  22 16 21.24   -14 12 16.0         225088    304  C~0Zsw      
2011 10  24.00257  22 16 20.20   -14 12 18.0         225088    304  C~0Zsw      
2011 10  24.06959  22 16 20.10   -14 12 18.2         225088    304  C~0Zsw      
2011 10  24.19760  22 16 19.94   -14 12 18.1         225088    304  C~0Zsw      

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    -0.11
  2   6.1171      0.00     0.12       0.00    -0.57
  3  16.0221      0.00     0.26       0.00    -0.02
  4  16.9782      0.00    -0.53       0.00     0.40
  5  16.9972      0.00    -0.45       0.00     0.12
  6  16.9997      0.00     0.46       0.00     0.42
  7  16.9999      0.00     0.09       0.00    -0.71
  8  17.0734      0.00     0.46       0.00    -0.24
  9  17.0735      0.00     0.04       0.00     0.56
 10  21.9088      0.00     0.47       0.00    -0.77
 11  21.9090      0.00     0.62       0.00     0.27
 12  21.9114      0.00     0.89       0.00     0.23
 13  21.9115      0.00     0.35       0.00     0.68
 14  21.9197      0.00    -0.25       0.00    -0.14
 15  21.9688      0.00    -0.31       0.00    -0.16
 16  21.9690      0.00    -0.09       0.00    -0.58
 17  21.9693      0.00    -0.15       0.00    -0.20
 18  22.0454      0.00     0.42       0.00    -0.32
 19  22.0457      0.00     0.14       0.00    -0.06
 20  22.1544      0.00    -0.28       0.00    -0.08
 21  22.1572      0.00    -0.37       0.00    -0.08
 22  22.1575      0.00    -0.31       0.00    -0.23
 23  22.8153      0.00    -0.14       0.00    -0.05
 24  22.8261      0.00    -0.19       0.00     0.05
 25  22.8289      0.00    -0.38       0.00    -0.04
 26  22.8725      0.00    -0.28       0.00     0.03
 27  22.8728      0.00    -0.01       0.00     0.59
 28  22.8752      0.00     0.00       0.00    -0.14
 29  22.8755      0.00    -0.41       0.00     0.03
 30  22.9656      0.00    -0.11       0.00     0.29
 31  22.9657      0.00     0.18       0.00     0.45
 32  22.9708      0.00    -0.24       0.00    -0.36
 33  22.9709      0.00     0.17       0.00    -0.02
 34  23.0112      0.00     0.51       0.00     0.17
 35  23.0114      0.00     0.54       0.00     0.29
 36  24.1644      0.00     0.28       0.00    -0.78
 37  24.1644      0.00     0.33       0.00    -0.87
 38  24.1672      0.00     0.04       0.00    -0.17
 39  24.2177      0.00     0.13       0.00     0.15
 40  24.2177      0.00     0.01       0.00     0.14
 41  24.2177      0.00     0.03       0.00     0.14
 42  24.2177      0.00     0.05       0.00     0.14
 43  24.2178      0.00     0.22       0.00     0.30
 44  24.2179      0.00     0.12       0.00     0.29
 45  24.2179      0.00     0.17       0.00     0.49
 46  24.2179      0.00     0.07       0.00     0.48
 47  24.3204      0.00    -0.23       0.00     0.08
 48  24.3204      0.00     0.03       0.00    -0.65
 49  24.3259      0.00    -0.28       0.00    -0.04
 50  24.3259      0.00    -0.48       0.00    -0.47
 51  26.1077      0.00    -0.18       0.00    -0.01
 52  26.1079      0.00     0.01       0.00    -0.01
 53  26.1084      0.00    -0.02       0.00     0.11
 54  26.1104      0.00    -0.05       0.00    -0.01
 55  26.1107      0.00    -0.15       0.00    -0.05
 56  26.1111      0.00    -0.18       0.00    -0.08
 57  26.1131      0.00    -0.11       0.00    -0.06
 58  26.1134      0.00    -0.09       0.00    -0.04
 59  26.1138      0.00    -0.11       0.00     0.06
 60  26.1158      0.00    -0.26       0.00     0.16
 61  26.1161      0.00    -0.12       0.00    -0.12
 62  26.1165      0.00    -0.10       0.00    -0.03
 63  26.1186      0.00     0.02       0.00     0.07
 64  26.1187      0.00    -0.12       0.00    -0.04
 65  26.1190      0.00    -0.06       0.00    -0.02
 66  26.1761      0.00     0.04       0.00     0.10
 67  26.1764      0.00     0.00       0.00     0.14
 68  26.1766      0.00     0.89       0.00    -0.29
 69  26.1788      0.00     0.15       0.00     0.08
 70  26.1790      0.00    -0.07       0.00     0.07
 71  26.1793      0.00    -0.06       0.00     0.52

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.

225088    quality flag:3

Type:     10:3EEEEEE10:3EEEEEE10:3EEEEEE

axisobj        67.045    67.046    67.045
ecceobj         0.500     0.500     0.500
incobj         30.715    30.715    30.715
qmin           32.870    32.870    32.870
qmax          103.288   103.288   103.288
amean          67.185    67.186    67.185
amin           66.361    66.365    66.369
amax           68.377    68.378    68.376
emean           0.447     0.447     0.448
emin            0.373     0.372     0.374
emax            0.511     0.511     0.511
imean          34.706    34.711    34.698
imin           31.712    31.712    31.712
imax           37.583    37.607    37.547
excite_mean     0.725     0.725     0.725
fracstop        1.000     1.000     1.000
cjmean          2.640     2.640     2.640

libcent 0       159.0     158.2     159.6
libamp  0        72.2      72.4      72.0
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       234.0     233.8     234.2
kozaiamp         25.4      25.2      25.8