Orbit Fit and Astrometric record for 11UU412

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: 11UU412   
# Created Fri Nov  1 01:09:06 2024
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:  36.01d
# First observation: 2011/10/25
#  Last observation: 2011/11/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000000   0.047451  -0.000000   0.014733   0.033549   0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit:     4.89 DOF:     17 RMS:  0.12
# Min/Max residuals:    -0.26    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.699808E-05  3.427090E-02  7.432599E-06  1.458800E-02  3.147305E-02 -3.570558E-03
# Covariance matrix:
  1.8381E-12  3.6700E-09 -2.2070E-14  2.5668E-11  5.5126E-10 -2.7087E-08
  3.6700E-09  8.1363E-06 -4.7181E-11  5.4247E-08  1.2167E-06 -6.2048E-05
 -2.2070E-14 -4.7181E-11  1.6526E-13 -2.2426E-12 -7.1604E-12  3.1571E-10
  2.5668E-11  5.4247E-08 -2.2426E-12  5.6136E-10  8.2723E-09 -3.4635E-07
  5.5126E-10  1.2167E-06 -7.1604E-12  8.2723E-09  1.8224E-07 -9.1553E-06
 -2.7087E-08 -6.2048E-05  3.1571E-10 -3.4635E-07 -9.1553E-06  5.2509E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.102143   32.504791    0.018504    0.053616   -0.989403  2455859.820796
# Heliocentric elements and errors
Epoch:              2455850.5000  =  2011/10/16
Mean Anomaly:          337.22723 +/-    90.499
Argument of Peri:       41.87060 +/-   152.397
Long of Asc Node:       25.42668 +/-     0.582
Inclination:            23.19597 +/-     1.714
Eccentricity:         0.20116002 +/-    0.4970
Semi-Major Axis:     39.82846301 +/-   11.6713
Time of Perihelion: 2461658.1712 +/-   22938.1
Perihelion:          31.81656864 +/-   21.8808
Aphelion:            47.84035738 +/-   24.2564
Period (y)              251.3614 +/-    110.49
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.60535169 +/-    0.3629
Ecliptic Y           17.56725715 +/-    0.2312
Ecliptic Z            1.71968095 +/-    0.0233
Ecliptic XDOT        -0.00192514 +/-    0.0018
Ecliptic YDOT         0.00231575 +/-    0.0009
Ecliptic ZDOT         0.00125041 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   32.76616042 +/-    0.3299
Geocenter to KBO     31.77321576 +/-    0.4310
# Hcoef:  9.71

The following table shows the complete astrometric record for 11UU412. 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 (11UU412) followed by the observatory code and reference code for the source of the astrometry.

2011 10  25.32003  01 56 49.730  +15 15 12.77        11UU412   568  C~1CKy      
2011 10  25.32517  01 56 49.699  +15 15 12.68  24.3r 11UU412   568  C~1CKy      
2011 10  25.36849  01 56 49.415  +15 15 11.60  24.9r 11UU412   568  C~1CKy      
2011 10  25.42298  01 56 49.068  +15 15 10.50  24.7r 11UU412   568  C~1CKy      
2011 10  25.47742  01 56 48.711  +15 15 08.92        11UU412   568  C~1CKy      
2011 10  25.48274  01 56 48.702  +15 15 08.93        11UU412   568  C~1CKy      
2011 10  26.27399  01 56 43.808  +15 14 49.12  24.6r 11UU412   568  C~1CKy      
2011 10  26.32667  01 56 43.470  +15 14 47.86  24.6r 11UU412   568  C~1CKy      
2011 10  26.36985  01 56 43.194  +15 14 46.76  24.5r 11UU412   568  C~1CKy      
2011 11  24.28776  01 53 54.064  +15 02 58.67  25.0r 11UU412   568  C~1CKy      
2011 11  30.33399  01 53 24.148  +15 00 47.45  25.2r 11UU412   568  C~1CKy      

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     0.05       0.00    -0.02
     2   0.0000     -0.45     0.08       0.07     0.00
     3   0.0001     -4.68    -0.07       0.49     0.03
     4   0.0003     -9.77    -0.01       1.20     0.26
     5   0.0004    -15.17    -0.26       1.52     0.10
     6   0.0004    -15.28     0.12       1.57     0.11
     7   0.0026    -88.58     0.10       7.63    -0.20
     8   0.0028    -93.60     0.03       8.15    -0.15
     9   0.0029    -97.73    -0.03       8.51    -0.17
    10   0.0820  -2639.75    -0.01     200.51     0.07
    11   0.0986  -3091.71     0.01     229.81    -0.04

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.

11UU412    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0