Orbit Fit and Astrometric record for 11UU411

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: 11UU411   
# Created Fri Dec 15 02:37:39 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:   1.47y
# First observation: 2011/08/29
#  Last observation: 2013/02/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.000164   0.022637   0.000002   0.000532   0.023305   0.000000
# Chi-squared of fit:    11.41 DOF:   42 RMS:  0.12
# Min/Max residuals:    -0.28    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.463546E-05  2.250155E-02 -4.194768E-07  5.362165E-04  2.338836E-02 -1.697254E-04
# Covariance matrix:
  4.1631E-13  9.7526E-14 -4.0533E-15  1.7712E-14  4.7730E-13  2.3312E-11
  9.7526E-14  4.0437E-13 -3.3258E-15  1.5111E-14  3.8023E-13  2.0310E-11
 -4.0533E-15 -3.3258E-15  1.3151E-13 -1.2573E-13 -6.9550E-15 -3.8256E-13
  1.7712E-14  1.5111E-14 -1.2573E-13  2.2498E-13  3.1008E-14  1.8634E-12
  4.7730E-13  3.8023E-13 -6.9550E-15  3.1008E-14  8.0681E-13  4.1263E-11
  2.3312E-11  2.0310E-11 -3.8256E-13  1.8634E-12  4.1263E-11  2.5924E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.988978   33.316479    0.852058    0.009228   -0.536545  2455802.986416
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          309.07900 +/-     2.050
Argument of Peri:       89.26805 +/-     2.300
Long of Asc Node:      356.96420 +/-     0.024
Inclination:             1.69266 +/-     0.001
Eccentricity:         0.03415190 +/-    0.0019
Semi-Major Axis:     44.22493200 +/-    0.0069
Time of Perihelion: 2470995.2513 +/-     611.8
Perihelion:          42.71456654 +/-    0.0822
Aphelion:            45.73529747 +/-    0.0822
Period (y)              294.1094 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.64375574 +/-    0.0014
Ecliptic Y           23.06491965 +/-    0.0009
Ecliptic Z            0.73798504 +/-    0.0000
Ecliptic XDOT        -0.00146744 +/-    0.0000
Ecliptic YDOT         0.00219503 +/-    0.0000
Ecliptic ZDOT         0.00006248 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.30473387 +/-    0.0013
Geocenter to KBO     42.75630917 +/-    0.0016
# Hcoef:  7.98

The following table shows the complete astrometric record for 11UU411. 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 (11UU411) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.48565  02 02 58.946  +13 32 58.68  24.0r 11UU411   568  C~1C6O      
2011 08  29.53760  02 02 58.836  +13 32 57.90  24.1r 11UU411   568  C~1C6O      
2011 08  29.58466  02 02 58.720  +13 32 57.68  24.5r 11UU411   568  C~1C6O      
2011 10  24.40337  01 59 31.648  +13 15 30.95  24.2r 11UU411   568  C~1C6O      
2011 10  24.44610  01 59 31.449  +13 15 29.87  24.3r 11UU411   568  C~1C6O      
2011 10  24.48881  01 59 31.258  +13 15 28.91  24.3r 11UU411   568  C~1C6O      
2011 10  26.42314  01 59 22.359  +13 14 41.57  24.0r 11UU411   568  C~1C6O      
2011 10  28.48012  01 59 12.889  +13 13 51.44  24.3r 11UU411   568  C~1C6O      
2011 10  30.52443  01 59 03.491  +13 13 01.84  23.9r 11UU411   568  C~1C6O      
2011 10  31.50734  01 58 58.998  +13 12 37.55  24.1r 11UU411   568  C~1C6O      
2011 11  24.29629  01 57 16.835  +13 03 23.21  24.0r 11UU411   568  C~1C6O      
2011 11  30.34253  01 56 54.431  +13 01 18.83  24.4r 11UU411   568  C~1C6O      
2011 11  30.35120  01 56 54.412  +13 01 18.79  23.7r 11UU411   568  C~1C6O      
2012 01  25.28222  01 55 36.913  +12 53 21.30  24.4r 11UU411   568  C~1C6O      
2012 01  27.32416  01 55 39.337  +12 53 32.12  24.3r 11UU411   568  C~1C6O      
2012 08  17.56010  02 08 14.243  +14 02 14.70  24.5r 11UU411   568  C~1C6O      
2012 08  22.61568  02 08 07.641  +14 01 48.84  24.4r 11UU411   568  C~1C6O      
2012 08  24.51776  02 08 04.615  +14 01 36.15  23.8r 11UU411   568  C~1C6O      
2012 10  17.36532  02 05 00.800  +13 46 37.98  24.0r 11UU411   568  C~1C6O      
2012 10  20.46016  02 04 46.617  +13 45 24.99  23.9r 11UU411   568  C~1C6O      
2013 01  14.35870  02 00 23.810  +13 21 19.84  24.3r 11UU411   568  C~1C6O      
2013 02  02.24144  02 00 40.907  +13 22 27.65  24.6r 11UU411   568  C~1C6O      
2013 02  03.24708  02 00 42.735  +13 22 35.94  24.5r 11UU411   568  C~1C6O      
2013 02  17.26070  02 01 17.402  +13 25 24.74        11UU411   568  C~1C6O      

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     0.12       0.00     0.16
  2   0.0001     -1.77     0.07      -0.18    -0.13
  3   0.0003     -3.44    -0.03       0.19     0.15
  4   0.1531  -3200.86    -0.16      55.26    -0.04
  5   0.1532  -3203.96    -0.16      55.25    -0.08
  6   0.1533  -3206.91    -0.01      55.31    -0.05
  7   0.1586  -3345.23    -0.06      55.74    -0.24
  8   0.1643  -3492.35    -0.01      56.46    -0.12
  9   0.1699  -3638.31     0.01      57.34     0.27
 10   0.1725  -3708.30     0.01      57.23    -0.03
 11   0.2377  -5301.05     0.03      54.34     0.05
 12   0.2542  -5651.51     0.01      51.47     0.01
 13   0.2543  -5651.79     0.23      51.53     0.07
 14   0.4074  -6881.18    -0.11      -1.59    -0.12
 15   0.4130  -6844.15     0.05      -3.81    -0.03
 16   0.9694   4917.33    -0.28      93.11     0.20
 17   0.9832   4818.10     0.04     101.12    -0.03
 18   0.9885   4772.34     0.13     104.01    -0.13
 19   1.1359   1949.06     0.16     164.68     0.07
 20   1.1444   1729.90     0.01     166.31     0.14
 21   1.3795  -2365.68     0.06     120.22     0.12
 22   1.4312  -2108.05    -0.05      97.99     0.11
 23   1.4340  -2080.15    -0.10      96.60    -0.13
 24   1.4723  -1547.06     0.04      81.19    -0.24

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.

11UU411    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.319    44.336    44.304
ecceobj         0.035     0.039     0.031
incobj          1.692     1.692     1.692
qmin           41.489    41.318    41.645
qmax           46.682    46.909    46.496
amean          43.997    44.015    43.982
amin           43.654    43.672    43.650
amax           44.346    44.374    44.341
emean           0.037     0.042     0.033
emin            0.021     0.026     0.017
emax            0.053     0.058     0.049
imean           2.483     2.480     2.486
imin            1.768     1.760     1.772
imax            3.055     3.056     3.055
excite_mean     0.058     0.061     0.055
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.098

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       177.9     177.5     177.9
kozaiamp        180.0     180.0     180.0