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 Thu Aug 16 01:37:49 2018
# Orbit generated from Bernstein formalism
# Fitting   28 observations of   28
# Arc:  12.15y
# First observation: 2002/01/09
#  Last observation: 2014/03/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.001946   0.027352  -0.000156   0.002147   0.031737   0.000000
# Chi-squared of fit:    20.89 DOF:   50 RMS:  0.15
# Min/Max residuals:    -0.39    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.769200E-05  2.598491E-02  9.593674E-07  2.056557E-03  2.535307E-02 -1.493170E-03
# Covariance matrix:
  4.8828E-13 -9.4430E-14  4.9549E-15 -4.2840E-15 -5.1828E-14 -1.6501E-13
 -9.4430E-14  5.3159E-14 -4.4115E-15  3.8207E-15  5.9512E-14  1.4685E-13
  4.9549E-15 -4.4115E-15  4.2829E-13 -4.0688E-14 -3.4508E-15 -1.3594E-14
 -4.2840E-15  3.8207E-15 -4.0688E-14  4.5919E-15  3.1837E-15  1.1739E-14
 -5.1828E-14  5.9512E-14 -3.4508E-15  3.1837E-15  4.4754E-13  1.1279E-13
 -1.6501E-13  1.4685E-13 -1.3594E-14  1.1739E-14  1.1279E-13  4.5286E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.357441  110.002490    0.016425    0.006022   -0.978492  2452283.829227
# Heliocentric elements and errors
Epoch:              2452280.5000  =  2002/01/06
Mean Anomaly:          331.77689 +/-     0.020
Argument of Peri:       39.25655 +/-     0.025
Long of Asc Node:      105.56799 +/-     0.001
Inclination:             4.52934 +/-     0.000
Eccentricity:         0.10803773 +/-    0.0001
Semi-Major Axis:     44.53085278 +/-    0.0051
Time of Perihelion: 2460789.7694 +/-       5.9
Perihelion:          39.71984071 +/-    0.0055
Aphelion:            49.34186485 +/-    0.0064
Period (y)              297.1664 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -13.81009820 +/-    0.0004
Ecliptic Y           37.99339970 +/-    0.0010
Ecliptic Z            0.24610433 +/-    0.0000
Ecliptic XDOT        -0.00258973 +/-    0.0000
Ecliptic YDOT        -0.00111303 +/-    0.0000
Ecliptic ZDOT         0.00022129 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.42620191 +/-    0.0009
Geocenter to KBO     39.44295650 +/-    0.0010
# Hcoef:  6.65

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.

2002 01  09.328484 07 26 47.48   +22 18 09.5   22.2V 11BV163   645  C~2POP      
2002 01  09.329314 07 26 47.51   +22 18 09.3   21.8V 11BV163   645  C~2POP      
2002 01  09.331802 07 26 47.49   +22 18 09.5   24.5V 11BV163   645  C~2POP      
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    -0.31       0.00     0.07
  2   0.0000      0.44     0.20      -0.14    -0.07
  3   0.0000      0.14     0.09       0.02     0.08
  4   8.0002  44007.53     0.30    3483.87    -0.18
  5   8.0003  44006.63     0.08    3484.02    -0.04
  6   9.0572  48073.51    -0.12    3957.95     0.07
  7   9.0572  48072.23    -0.16    3958.03     0.15
  8   9.0573  48071.10     0.06    3958.08     0.20
  9   9.0573  48069.63    -0.18    3957.77    -0.11
 10   9.2921  44589.44    -0.10    3902.02     0.00
 11   9.2921  44589.80     0.08    3901.85    -0.16
 12  10.0457  54246.88    -0.04    4418.05    -0.05
 13  10.0457  54245.77    -0.06    4418.05    -0.05
 14  10.0944  52810.63     0.04    4421.38    -0.12
 15  10.0944  52809.55     0.11    4421.54     0.04
 16  10.0945  52808.20    -0.11    4421.45    -0.04
 17  10.0945  52807.14    -0.03    4421.33    -0.16
 18  11.0937  58734.00    -0.11    4890.53     0.10
 19  11.0937  58732.91    -0.13    4890.34    -0.08
 20  11.0937  58732.09     0.11    4890.48     0.06
 21  11.0938  58731.17     0.25    4890.57     0.16
 22  11.9784  68224.44    -0.36    5338.81     0.07
 23  11.9784  68224.01     0.27    5338.38    -0.39
 24  12.1316  63684.09    -0.03    5358.52     0.06
 25  12.1317  63682.20    -0.03    5358.34    -0.08
 26  12.1317  63681.35     0.06    5358.70     0.29
 27  12.1535  63147.66     0.29    5349.79     0.01
 28  12.1536  63146.36    -0.18    5349.93     0.17

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        44.311    44.326    44.296
ecceobj         0.103     0.103     0.103
incobj          4.535     4.535     4.535
qmin           38.687    38.700    38.691
qmax           49.998    50.050    49.927
amean          44.210    44.225    44.190
amin           43.852    43.868    43.825
amax           44.600    44.623    44.590
emean           0.105     0.105     0.104
emin            0.088     0.089     0.088
emax            0.122     0.122     0.121
imean           3.027     3.028     3.031
imin            2.218     2.220     2.214
imax            3.775     3.767     3.775
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       178.3     177.9     178.1
kozaiamp        180.0     180.0     180.0