Orbit Fit and Astrometric record for 11BV163

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: 11BV163   
# Created Tue Oct 17 01:37:55 2017
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   25
# Arc:   4.15y
# First observation: 2010/01/09
#  Last observation: 2014/03/06
Preliminary a, adot, b, bdot, g, gdot:
   0.000034   0.026649  -0.000014   0.002030   0.025930   0.000000
# Chi-squared of fit:    15.84 DOF:   44 RMS:  0.14
# Min/Max residuals:    -0.40    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.529925E-05  2.652476E-02  1.895873E-06  2.018715E-03  2.560743E-02 -9.409830E-04
# Covariance matrix:
  5.0855E-13 -4.1183E-13  2.2094E-14 -2.7921E-14 -9.7894E-14 -2.9604E-12
 -4.1183E-13  6.5587E-13 -3.8814E-14  5.0524E-14  5.3150E-13  5.3523E-12
  2.2094E-14 -3.8814E-14  2.5675E-13 -8.4008E-14 -2.9704E-14 -3.3586E-13
 -2.7921E-14  5.0524E-14 -8.4008E-14  3.7508E-14  4.0646E-14  4.3596E-13
 -9.7894E-14  5.3150E-13 -2.9704E-14  4.0646E-14  8.8990E-13  4.2999E-12
 -2.9604E-12  5.3523E-12 -3.3586E-13  4.3596E-13  4.2999E-12  4.6188E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.295928  122.047687    0.222256    0.021773   -0.961815  2455205.915236
# Heliocentric elements and errors
Epoch:              2455200.5000  =  2010/01/04
Mean Anomaly:          338.62360 +/-     0.115
Argument of Peri:       42.20643 +/-     0.144
Long of Asc Node:      105.59576 +/-     0.002
Inclination:             4.54387 +/-     0.000
Eccentricity:         0.09912614 +/-    0.0002
Semi-Major Axis:     44.00534186 +/-    0.0060
Time of Perihelion: 2461531.7388 +/-      34.2
Perihelion:          39.64326197 +/-    0.0087
Aphelion:            48.36742176 +/-    0.0095
Period (y)              291.9216 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -21.03506047 +/-    0.0008
Ecliptic Y           34.02174860 +/-    0.0012
Ecliptic Z            0.88324685 +/-    0.0000
Ecliptic XDOT        -0.00234488 +/-    0.0000
Ecliptic YDOT        -0.00158863 +/-    0.0000
Ecliptic ZDOT         0.00021343 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.00916485 +/-    0.0011
Geocenter to KBO     39.05116179 +/-    0.0014
# Hcoef:  6.64

The following table shows the complete astrometric record for 11BV163. 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 (11BV163) followed by the observatory code and reference code for the source of the astrometry.

2010 01  09.41447  08 18 28.340  +20 57 59.48  22.6r 11BV163   F51  C~1w3m      
2010 01  09.42305  08 18 28.282  +20 57 59.82  22.4r 11BV163   F51  C~1w3m      
2011 01  30.46905  08 23 04.594  +20 50 21.62  22.6w 11BV163   F51  C~1w3m      
2011 01  30.48429  08 23 04.511  +20 50 21.99  22.9w 11BV163   F51  C~1w3m      
2011 01  30.50059  08 23 04.438  +20 50 22.29  22.5w 11BV163   F51  C~1w3m      
2011 01  30.51568  08 23 04.336  +20 50 22.33  22.6w 11BV163   F51  C~1w3m      
2011 04  26.26218  08 19 13.628  +21 02 28.67  22.6w 11BV163   F51  C~1w3m      
2011 04  26.27227  08 19 13.649  +21 02 28.42  22.5w 11BV163   F51  C~1w3m      
2012 01  26.50595  08 29 54.087  +20 33 58.94  22.5i 11BV163   F51  C~1w3m      
2012 01  26.51882  08 29 54.016  +20 33 59.20  22.5i 11BV163   F51  C~1w3m      
2012 02  13.30661  08 28 21.306  +20 39 35.41  22.8w 11BV163   F51  C~1w3m      
2012 02  13.32114  08 28 21.239  +20 39 35.81  23.1w 11BV163   F51  C~1w3m      
2012 02  13.33571  08 28 21.150  +20 39 36.04  23.1w 11BV163   F51  C~1w3m      
2012 02  13.35030  08 28 21.079  +20 39 36.17  23.1w 11BV163   F51  C~1w3m      
2013 02  12.28735  08 34 49.420  +20 23 45.14  22.3w 11BV163   F51  C~1w3m      
2013 02  12.30053  08 34 49.348  +20 23 45.22  22.5w 11BV163   F51  C~1w3m      
2013 02  12.31376  08 34 49.298  +20 23 45.54  22.3w 11BV163   F51  C~1w3m      
2013 02  12.32697  08 34 49.241  +20 23 45.85  22.5w 11BV163   F51  C~1w3m      
2014 01  01.43943  08 44 50.714  +19 52 27.72  22.5w 11BV163   F51  C~1w3m      
2014 01  01.45342  08 44 50.680  +19 52 27.43  22.3w 11BV163   F51  C~1w3m      
2014 02  26.40448  08 40 09.589  +20 11 11.78  22.5w 11BV163   F51  C~1w3m      
2014 02  26.43053  08 40 09.468  +20 11 12.07  22.3w 11BV163   F51  C~1w3m      
2014 02  26.44354  08 40 09.421  +20 11 12.60  22.6w 11BV163   F51  C~1w3m      
2014 03  06.40823  08 39 35.873  +20 13 13.45  22.5w 11BV163   F51  C~1w3m      
2014 03  06.42129  08 39 35.794  +20 13 13.89  22.5w 11BV163   F51  C~1w3m      

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     0.22       0.00    -0.13
  2   0.0000     -0.87     0.01       0.15     0.00
  3   1.0570   3873.28    -0.12     442.95     0.09
  4   1.0570   3872.06    -0.15     443.04     0.18
  5   1.0570   3871.00     0.06     443.09     0.22
  6   1.0571   3869.60    -0.17     442.79    -0.08
  7   1.2918    556.69    -0.12     405.90     0.03
  8   1.2919    557.03     0.05     405.72    -0.13
  9   2.0454   9694.45     0.00     857.36    -0.03
 10   2.0455   9693.42    -0.02     857.37    -0.03
 11   2.0942   8346.54     0.07     868.37    -0.11
 12   2.0942   8345.53     0.13     868.53     0.05
 13   2.0942   8344.26    -0.07     868.45    -0.03
 14   2.0943   8343.26     0.00     868.34    -0.14
 15   3.0934  13881.37    -0.08    1288.45     0.09
 16   3.0935  13880.37    -0.10    1288.27    -0.09
 17   3.0935  13879.60     0.13    1288.40     0.05
 18   3.0935  13878.75     0.26    1288.50     0.14
 19   3.9782  22616.62    -0.34    1661.80     0.04
 20   3.9782  22616.23     0.23    1661.39    -0.40
 21   4.1314  18457.67    -0.04    1708.57     0.03
 22   4.1315  18455.93    -0.04    1708.41    -0.11
 23   4.1315  18455.15     0.04    1708.75     0.24
 24   4.1533  17963.88     0.25    1703.51    -0.02
 25   4.1533  17962.69    -0.18    1703.65     0.13

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.

11BV163    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.313    44.331    44.296
ecceobj         0.103     0.103     0.103
incobj          4.535     4.535     4.535
qmin           38.705    38.687    38.649
qmax           50.005    50.008    49.970
amean          44.211    44.230    44.187
amin           43.850    43.867    43.826
amax           44.599    44.622    44.585
emean           0.105     0.106     0.104
emin            0.089     0.089     0.088
emax            0.121     0.122     0.121
imean           3.027     3.027     3.036
imin            2.219     2.222     2.214
imax            3.772     3.766     3.769
excite_mean     0.118     0.118     0.117
fracstop        1.000     1.000     1.000
cjmean          3.087     3.087     3.087

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       178.2     178.0     178.4
kozaiamp        180.0     180.0     180.0