Orbit Fit and Astrometric record for 11UQ410

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: 11UQ410   
# Created Wed Dec 13 02:37:41 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   2.01y
# First observation: 2011/08/29
#  Last observation: 2013/08/31
Preliminary a, adot, b, bdot, g, gdot:
  -0.000291   0.039970   0.000012   0.002077   0.032520   0.000000
# Chi-squared of fit:    11.63 DOF:   46 RMS:  0.12
# Min/Max residuals:    -0.31    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.894039E-05  4.013881E-02  4.929316E-07  2.106212E-03  3.286131E-02  7.569419E-03
# Covariance matrix:
  2.2276E-13 -2.5768E-14 -1.7401E-15  5.5261E-15  1.6477E-13  1.2872E-12
 -2.5768E-14  6.0301E-13 -6.9899E-15  3.2289E-14  2.6177E-13  8.1052E-12
 -1.7401E-15 -6.9899E-15  1.0942E-13 -8.2909E-14 -4.9900E-15 -1.2213E-13
  5.5261E-15  3.2289E-14 -8.2909E-14  1.3082E-13  1.9907E-14  5.5665E-13
  1.6477E-13  2.6177E-13 -4.9900E-15  1.9907E-14  3.1152E-13  4.8720E-12
  1.2872E-12  8.1052E-12 -1.2213E-13  5.5665E-13  4.8720E-12  1.3943E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.197657   33.634780    0.855026    0.011083   -0.531767  2455802.986416
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:           26.12600 +/-     0.023
Argument of Peri:      336.26217 +/-     0.050
Long of Asc Node:       10.79166 +/-     0.003
Inclination:             3.24190 +/-     0.000
Eccentricity:         0.26845334 +/-    0.0003
Semi-Major Axis:     39.71782877 +/-    0.0066
Time of Perihelion: 2449165.4057 +/-       5.6
Perihelion:          29.05544502 +/-    0.0113
Aphelion:            50.38021252 +/-    0.0132
Period (y)              250.3148 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.25061497 +/-    0.0004
Ecliptic Y           16.43582257 +/-    0.0003
Ecliptic Z            0.63609424 +/-    0.0000
Ecliptic XDOT        -0.00133358 +/-    0.0000
Ecliptic YDOT         0.00313692 +/-    0.0000
Ecliptic ZDOT         0.00018868 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.97798679 +/-    0.0004
Geocenter to KBO     30.43092017 +/-    0.0005
# Hcoef:  9.56

The following table shows the complete astrometric record for 11UQ410. 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 (11UQ410) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.48565  02 03 55.230  +13 51 16.02  24.4r 11UQ410   568  C~1C6L      
2011 08  29.53760  02 03 55.082  +13 51 15.46  24.3r 11UQ410   568  C~1C6L      
2011 08  29.58466  02 03 54.956  +13 51 14.90  24.5r 11UQ410   568  C~1C6L      
2011 09  05.52418  02 03 33.945  +13 49 47.15  24.1r 11UQ410   568  C~1C6L      
2011 10  24.40337  01 59 20.090  +13 29 12.11  24.1r 11UQ410   568  C~1C6L      
2011 10  24.44610  01 59 19.839  +13 29 10.78  24.3r 11UQ410   568  C~1C6L      
2011 10  24.48881  01 59 19.565  +13 29 09.50  24.4r 11UQ410   568  C~1C6L      
2011 10  26.42314  01 59 07.591  +13 28 07.59  24.5r 11UQ410   568  C~1C6L      
2011 10  28.48012  01 58 54.837  +13 27 01.60  24.3r 11UQ410   568  C~1C6L      
2011 10  30.52443  01 58 42.202  +13 25 55.94  24.3r 11UQ410   568  C~1C6L      
2011 10  31.50734  01 58 36.168  +13 25 24.71  24.2r 11UQ410   568  C~1C6L      
2011 11  24.29629  01 56 19.602  +13 13 17.99  24.0r 11UQ410   568  C~1C6L      
2011 11  30.34253  01 55 50.012  +13 10 36.60  24.3r 11UQ410   568  C~1C6L      
2011 11  30.35120  01 55 49.978  +13 10 36.41  24.5r 11UQ410   568  C~1C6L      
2012 01  26.26707  01 54 22.079  +13 01 37.42  24.3r 11UQ410   568  C~1C6L      
2012 01  27.32416  01 54 24.235  +13 01 47.96        11UQ410   568  C~1C6L      
2012 08  23.53769  02 12 49.633  +14 44 52.01  24.5r 11UQ410   568  C~1C6L      
2012 08  24.57339  02 12 47.690  +14 44 45.93  24.6r 11UQ410   568  C~1C6L      
2012 10  17.40813  02 08 49.586  +14 26 53.35  24.0r 11UQ410   568  C~1C6L      
2012 10  17.42550  02 08 49.467  +14 26 52.80  24.1r 11UQ410   568  C~1C6L      
2012 10  20.50496  02 08 30.599  +14 25 19.92  24.6r 11UQ410   568  C~1C6L      
2013 01  14.32244  02 02 43.322  +13 54 25.20        11UQ410   568  C~1C6L      
2013 02  02.25552  02 03 11.011  +13 56 20.75  24.6r 11UQ410   568  C~1C6L      
2013 08  31.45700  02 21 12.81   +15 34 56.2         11UQ410   568  C~1C6L      
2013 08  31.50540  02 21 12.68   +15 34 55.8         11UQ410   568  C~1C6L      
2013 08  31.56647  02 21 12.53   +15 34 55.3         11UQ410   568  C~1C6L      

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     0.08       0.00     0.11
  2   0.0001     -2.22     0.00       0.21     0.11
  3   0.0003     -4.13     0.04       0.31     0.03
  4   0.0193   -321.72     0.01      22.26     0.14
  5   0.1531  -4221.54    -0.06     133.44     0.05
  6   0.1532  -4225.43     0.21     133.45    -0.01
  7   0.1533  -4229.63     0.17     133.63     0.09
  8   0.1586  -4415.01     0.10     135.91    -0.04
  9   0.1643  -4612.50    -0.15     138.35    -0.06
 10   0.1699  -4808.27    -0.31     140.53    -0.10
 11   0.1725  -4901.72    -0.01     141.71     0.08
 12   0.2377  -7025.19    -0.01     152.60    -0.16
 13   0.2542  -7487.04    -0.19     151.98     0.06
 14   0.2543  -7487.57    -0.08     151.98     0.05
 15   0.4101  -8881.32     0.12      95.80    -0.16
 16   0.4130  -8848.06     0.10      94.64     0.06
 17   0.9858   8401.43    -0.17     413.65    -0.08
 18   0.9886   8372.78    -0.18     417.27    -0.09
 19   1.1360   4753.02     0.26     561.20    -0.11
 20   1.1360   4751.20     0.09     561.26    -0.09
 21   1.1445   4461.70     0.09     565.97    -0.13
 22   1.3794   -919.46    -0.12     535.60    -0.04
 23   1.4313   -501.12    -0.01     506.28    -0.16
 24   2.0068  16297.55     0.05     867.28     0.14
 25   2.0069  16295.63    -0.06     867.50     0.16
 26   2.0071  16293.40     0.02     867.73     0.14

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.

11UQ410    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.800    39.822    39.779
ecceobj         0.270     0.271     0.270
incobj          3.240     3.240     3.240
qmin           28.370    28.373    28.382
qmax           51.150    51.149    51.097
amean          39.455    39.455    39.455
amin           39.011    39.017    39.025
amax           39.988    39.998    39.978
emean           0.265     0.265     0.264
emin            0.250     0.250     0.249
emax            0.280     0.281     0.280
imean           3.035     3.063     3.031
imin            2.343     2.359     2.336
imax            3.858     3.859     3.857
excite_mean     0.270     0.271     0.270
fracstop        1.000     1.000     1.000
cjmean          2.967     2.967     2.968

libcent 0       180.2     180.4     179.8
libamp  0        68.8      69.9      69.8
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       182.2     187.4     180.4
kozaiamp        179.9     180.0     179.9