Orbit Fit and Astrometric record for 11UQ62

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: 11UQ62    
# Created Sat Oct 21 01:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   51 observations of   51
# Arc:   6.05y
# First observation: 2008/11/01
#  Last observation: 2014/11/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.090464   0.182069   0.000591  -0.002022  -0.059231   0.000000
# Chi-squared of fit:    50.05 DOF:   96 RMS:  0.18
# Min/Max residuals:    -0.43    0.47
# Exact a, adot, b, bdot, g, gdot:
  2.763933E-05  1.059717E-01 -8.673516E-07 -1.937585E-03  5.950119E-02 -4.662129E-02
# Covariance matrix:
  1.6547E-13 -6.9773E-14 -1.4721E-15  8.3942E-16 -2.3375E-15 -4.0412E-14
 -6.9773E-14  4.0698E-14  1.1586E-15 -5.7436E-16 -8.9683E-15  2.8186E-14
 -1.4721E-15  1.1586E-15  8.8862E-14 -1.7469E-14 -1.8491E-15  8.8497E-16
  8.3942E-16 -5.7436E-16 -1.7469E-14  4.1434E-15 -6.9945E-18 -4.4353E-16
 -2.3375E-15 -8.9683E-15 -1.8491E-15 -6.9945E-18  1.2997E-13 -6.2456E-15
 -4.0412E-14  2.8186E-14  8.8497E-16 -4.4353E-16 -6.2456E-15  2.1731E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   16.585112  -12.695308   -0.783941    0.174505   -0.585802  2454771.770516
# Heliocentric elements and errors
Epoch:              2454770.5000  =  2008/10/31
Mean Anomaly:          353.60821 +/-     0.001
Argument of Peri:      148.03689 +/-     0.001
Long of Asc Node:      252.64144 +/-     0.000
Inclination:            16.11642 +/-     0.000
Eccentricity:         0.72237280 +/-    0.0000
Semi-Major Axis:     52.97504694 +/-    0.0053
Time of Perihelion: 2457270.9916 +/-       0.0
Perihelion:          14.70731389 +/-    0.0020
Aphelion:            91.24277999 +/-    0.0091
Period (y)              385.5806 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.48386598 +/-    0.0001
Ecliptic Y           -2.91359942 +/-    0.0000
Ecliptic Z            4.79719207 +/-    0.0000
Ecliptic XDOT        -0.00090334 +/-    0.0000
Ecliptic YDOT         0.00520559 +/-    0.0000
Ecliptic ZDOT        -0.00069789 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.41321196 +/-    0.0001
Geocenter to KBO     16.80638638 +/-    0.0001
# Hcoef:  9.48

The following table shows the complete astrometric record for 11UQ62. 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 (11UQ62) followed by the observatory code and reference code for the source of the astrometry.

2008 11  01.269762 22 47 20.19   +10 15 33.7         11UQ62    645  C~1vWW      
2008 11  01.270591 22 47 20.19   +10 15 33.7         11UQ62    645  C~1vWW      
2008 11  01.273079 22 47 20.18   +10 15 33.6         11UQ62    645  C~1vWW      
2008 11  17.138816 22 46 59.26   +09 58 00.2   22.1V 11UQ62    645  C~1vWW      
2008 11  17.139645 22 46 59.26   +09 58 00.2   21.8V 11UQ62    645  C~1vWW      
2008 11  17.142133 22 46 59.26   +09 58 00.0   22.8V 11UQ62    645  C~1vWW      
2008 11  19.183542 22 47 00.51   +09 56 02.2         11UQ62    645  C~1vWW      
2008 11  19.186029 22 47 00.51   +09 56 02.2         11UQ62    645  C~1vWW      
2008 11  19.192812 22 47 00.51   +09 56 02.3         11UQ62    645  C~1vWW      
2011 10  19.26177  00 09 43.482  +17 43 35.13  21.5w 11UQ62    F51  C@0612      
2011 10  19.27564  00 09 43.351  +17 43 33.83  21.4w 11UQ62    F51  C@0612      
2011 10  19.28952  00 09 43.213  +17 43 32.61  21.5w 11UQ62    F51  C@0612      
2011 10  19.30347  00 09 43.079  +17 43 31.48  21.9w 11UQ62    F51  C~0ZWq      
2011 10  20.321564 00 09 33.91   +17 42 00.3   20.8R 11UQ62    F65  C~0ZWq      
2011 10  20.324322 00 09 33.88   +17 42 00.1   21.1R 11UQ62    F65  C~0ZWq      
2011 10  20.327114 00 09 33.86   +17 41 59.9   21.2R 11UQ62    F65  C~0ZWq      
2011 10  21.294555 00 09 25.25   +17 40 32.8   21.1R 11UQ62    F65  C~0ZWq      
2011 10  21.297318 00 09 25.22   +17 40 32.7   21.0R 11UQ62    F65  C~0ZWq      
2011 10  21.300076 00 09 25.19   +17 40 32.3   21.1R 11UQ62    F65  C~0ZWq      
2011 10  21.302836 00 09 25.17   +17 40 32.1   21.3R 11UQ62    F65  C~0ZWq      
2011 10  21.305623 00 09 25.15   +17 40 31.9   21.2R 11UQ62    F65  C~0ZWq      
2011 10  21.308403 00 09 25.12   +17 40 31.6   21.3R 11UQ62    F65  C~0ZWq      
2011 10  21.311187 00 09 25.10   +17 40 31.4   21.1R 11UQ62    F65  C~0ZWq      
2011 10  21.313952 00 09 25.07   +17 40 31.1   21.6R 11UQ62    F65  C~0ZWq      
2011 10  21.316692 00 09 25.04   +17 40 30.8   21.2R 11UQ62    F65  C~0ZWq      
2011 10  28.232844 00 08 26.954  +17 30 00.74  20.6R 11UQ62    568  C~0hkj      
2011 10  28.234095 00 08 26.941  +17 30 00.62  20.7R 11UQ62    568  C~0hkj      
2011 10  28.235352 00 08 26.933  +17 30 00.52  20.6R 11UQ62    568  C~0hkj      
2011 10  28.292962 00 08 26.464  +17 29 55.23  20.7R 11UQ62    568  C~0hkj      
2011 10  28.371113 00 08 25.829  +17 29 48.07  20.9R 11UQ62    568  C~0hkj      
2011 10  28.372364 00 08 25.817  +17 29 47.96  20.8R 11UQ62    568  C~0hkj      
2011 10  28.373622 00 08 25.809  +17 29 47.81  21.0R 11UQ62    568  C~0hkj      
2012 10  08.30834  00 44 19.496  +20 12 06.81  21.2w 11UQ62    F51  C~1vWW      
2012 10  08.32286  00 44 19.340  +20 12 05.68  21.1w 11UQ62    F51  C~1vWW      
2012 10  08.33738  00 44 19.161  +20 12 04.73  21.1w 11UQ62    F51  C~1vWW      
2012 10  08.35228  00 44 19.022  +20 12 03.65  21.1w 11UQ62    F51  C~1vWW      
2014 10  01.54643  01 58 51.834  +23 43 44.86  21.4w 11UQ62    F51  C~1vWW      
2014 10  01.55914  01 58 51.708  +23 43 44.13  21.5w 11UQ62    F51  C~1vWW      
2014 10  01.57187  01 58 51.583  +23 43 43.41  21.4w 11UQ62    F51  C~1vWW      
2014 10  01.58462  01 58 51.452  +23 43 42.81  21.3w 11UQ62    F51  C~1vWW      
2014 10  28.52684  01 53 58.354  +23 14 12.01  21.0w 11UQ62    F51  C~1vWW      
2014 10  28.53889  01 53 58.213  +23 14 10.90  21.0w 11UQ62    F51  C~1vWW      
2014 10  28.55092  01 53 58.084  +23 14 10.04  21.1w 11UQ62    F51  C~1vWW      
2014 10  28.56298  01 53 57.939  +23 14 09.05  21.2w 11UQ62    F51  C~1vWW      
2014 11  09.41080  01 51 48.171  +22 57 26.06  20.7i 11UQ62    F51  C~1vWW      
2014 11  09.42381  01 51 48.031  +22 57 24.95  20.6i 11UQ62    F51  C~1vWW      
2014 11  09.43680  01 51 47.884  +22 57 23.80  20.7i 11UQ62    F51  C~1vWW      
2014 11  20.42706  01 49 59.358  +22 41 00.26  21.1w 11UQ62    F51  C~1vWW      
2014 11  20.44073  01 49 59.235  +22 40 59.16  21.1w 11UQ62    F51  C~1vWW      
2014 11  20.45440  01 49 59.114  +22 40 57.95  21.2w 11UQ62    F51  C~1vWW      
2014 11  20.46806  01 49 58.979  +22 40 56.56  21.2w 11UQ62    F51  C~1vWW      

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     0.11       0.00     0.07
  2   0.0000      0.00     0.17       0.00     0.11
  3   0.0000     -0.18     0.17      -0.03     0.20
  4   0.0434   -699.60    -0.10    -846.15    -0.43
  5   0.0434   -699.60    -0.08    -846.15    -0.38
  6   0.0435   -699.68    -0.11    -846.33    -0.43
  7   0.0490   -729.19    -0.10    -961.87    -0.14
  8   0.0491   -729.19    -0.07    -961.87    -0.00
  9   0.0491   -729.15     0.06    -961.77     0.47
 10   2.9623  80472.82     0.09    -610.18    -0.03
 11   2.9624  80470.31     0.03    -610.88    -0.09
 12   2.9624  80467.71    -0.11    -611.46    -0.04
 13   2.9624  80465.21    -0.14    -611.97     0.09
 14   2.9652  80289.08     0.12    -660.95    -0.14
 15   2.9652  80288.54     0.07    -661.01    -0.07
 16   2.9652  80288.16     0.17    -661.12    -0.05
 17   2.9679  80122.30     0.12    -708.55    -0.20
 18   2.9679  80121.80     0.10    -708.51    -0.02
 19   2.9679  80121.18    -0.04    -708.77    -0.16
 20   2.9679  80120.80     0.06    -708.88    -0.13
 21   2.9679  80120.42     0.16    -708.99    -0.11
 22   2.9679  80119.84     0.07    -709.15    -0.13
 23   2.9679  80119.45     0.17    -709.26    -0.11
 24   2.9680  80118.88     0.07    -709.42    -0.14
 25   2.9680  80118.30    -0.02    -709.58    -0.17
 26   2.9869  78985.75    -0.15   -1071.15     0.29
 27   2.9869  78985.51    -0.20   -1071.21     0.30
 28   2.9869  78985.35    -0.16   -1071.27     0.30
 29   2.9871  78976.14    -0.18   -1074.38     0.28
 30   2.9873  78963.68    -0.16   -1078.60     0.30
 31   2.9873  78963.45    -0.18   -1078.65     0.31
 32   2.9873  78963.27    -0.16   -1078.76     0.27
 33   3.9344 118407.42     0.11    -611.89    -0.02
 34   3.9344 118404.21     0.12    -612.48    -0.05
 35   3.9345 118400.65    -0.22    -612.76     0.23
 36   3.9345 118397.76     0.20    -613.36     0.21
 37   5.9145 224955.01    -0.09   -1339.66     0.07
 38   5.9146 224951.03    -0.08   -1340.35    -0.10
 39   5.9146 224947.09    -0.03   -1341.03    -0.25
 40   5.9146 224943.00    -0.11   -1341.51    -0.21
 41   5.9884 215842.96     0.18   -2987.38     0.03
 42   5.9884 215838.58     0.06   -2988.51    -0.14
 43   5.9884 215834.62     0.34   -2989.32     0.00
 44   5.9885 215830.17     0.14   -2990.26     0.02
 45   6.0209 211839.68    -0.20   -3988.27     0.10
 46   6.0210 211835.40    -0.18   -3989.37     0.15
 47   6.0210 211830.91    -0.38   -3990.51     0.17
 48   6.0511 208495.58    -0.09   -5004.81    -0.16
 49   6.0511 208491.83     0.10   -5005.93     0.02
 50   6.0512 208488.10     0.29   -5007.20     0.05
 51   6.0512 208483.92     0.03   -5008.68    -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.

11UQ62    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        53.193    53.205    53.181
ecceobj         0.724     0.724     0.724
incobj         16.133    16.133    16.133
qmin           14.060    14.223    14.182
qmax           92.517    94.160    94.271
amean          50.956    52.257    52.310
amin           49.237    50.169    50.141
amax           53.586    54.495    54.411
emean           0.710     0.719     0.720
emin            0.694     0.705     0.706
emax            0.730     0.731     0.733
imean          19.015    17.564    17.085
imin           16.341    16.628    16.336
imax           21.836    20.064    18.784
excite_mean     0.782     0.780     0.777
fracstop        0.103     0.054     0.054
cjmean          2.324     2.326     2.328

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       226.8     199.9     199.2
kozaiamp         71.3      47.7      49.3