Orbit Fit and Astrometric record for 11FS53

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: 11FS53    
# Created Fri Mar 29 01:14:02 2024
# Orbit generated from Bernstein formalism
# Fitting     14 observations of     14
# Arc:   5.93d
# First observation: 2011/03/31
#  Last observation: 2011/04/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.796461   0.000000  -0.050709   0.232418   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:    22.19 DOF:     23 RMS:  0.22
# Min/Max residuals:    -0.56    0.46
# Exact a, adot, b, bdot, g, gdot:
  5.362435E-05  7.884645E-01 -3.137391E-06 -5.069813E-02  2.311370E-01 -8.692721E-03
# Covariance matrix:
  1.5367E-10  2.2500E-06  2.9245E-12  4.4789E-10  3.5731E-07 -3.1837E-07
  2.2500E-06  3.3048E-02  4.2812E-08  6.6694E-06  5.2480E-03 -4.7844E-03
  2.9245E-12  4.2812E-08  4.0599E-13 -1.7205E-11  6.7995E-09 -5.6560E-09
  4.4789E-10  6.6694E-06 -1.7205E-11  4.2675E-09  1.0585E-06 -1.3102E-06
  3.5731E-07  5.2480E-03  6.7995E-09  1.0585E-06  8.3339E-04 -7.5905E-04
 -3.1837E-07 -4.7844E-03 -5.6560E-09 -1.3102E-06 -7.5905E-04  1.1030E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.788800 -168.149751    0.030758   -0.013830   -1.002334  2455651.871266
# Heliocentric elements and errors
Epoch:              2455650.5000  =  2011/03/30
Mean Anomaly:          359.38989 +/-     1.267
Argument of Peri:      192.49506 +/-     7.599
Long of Asc Node:        1.67630 +/-     2.050
Inclination:             3.73877 +/-     0.843
Eccentricity:         0.57438466 +/-    0.1717
Semi-Major Axis:     12.50636175 +/-    3.7605
Time of Perihelion: 2455677.8778 +/-      55.5
Perihelion:           5.32289938 +/-    2.6787
Aphelion:            19.68982412 +/-    6.2981
Period (y)               44.2288 +/-     19.95
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -5.21709818 +/-    0.5288
Ecliptic Y           -1.06451449 +/-    0.1109
Ecliptic Z           -0.05955971 +/-    0.0074
Ecliptic XDOT         0.00202514 +/-    0.0005
Ecliptic YDOT        -0.00911160 +/-    0.0009
Ecliptic ZDOT        -0.00059903 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO    5.32492741 +/-    0.5186
Geocenter to KBO      4.32643850 +/-    0.5404
# Hcoef: 14.71

The following table shows the complete astrometric record for 11FS53. 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 (11FS53) followed by the observatory code and reference code for the source of the astrometry.

2011 03  31.37050  12 42 20.959  -05 24 41.43  21.5w 11FS53    F51  C~0UWw      
2011 03  31.40261  12 42 20.156  -05 24 37.81  21.6w 11FS53    F51  C~0UWw      
2011 03  31.41812  12 42 19.787  -05 24 35.82  21.5w 11FS53    F51  C~0UWw      
2011 04  02.40325  12 41 32.298  -05 20 36.52  21.2R 11FS53    F65  C~0UWw      
2011 04  02.40527  12 41 32.256  -05 20 35.98  22.0R 11FS53    F65  C~0UWw      
2011 04  02.40726  12 41 32.196  -05 20 35.94  21.0R 11FS53    F65  C~0UWw      
2011 04  05.31309  12 40 22.80   -05 14 45.6   21.7V 11FS53    G96  C~0UWw      
2011 04  05.32184  12 40 22.58   -05 14 44.5   21.4V 11FS53    G96  C~0UWw      
2011 04  05.33060  12 40 22.36   -05 14 43.3   21.6V 11FS53    G96  C~0UWw      
2011 04  05.33937  12 40 22.15   -05 14 42.9   21.3V 11FS53    G96  C~0UWw      
2011 04  06.27779  12 39 59.86   -05 12 49.7   21.2V 11FS53    G96  C~0UWw      
2011 04  06.28414  12 39 59.72   -05 12 48.5   22.7V 11FS53    G96  C~0UWw      
2011 04  06.29057  12 39 59.58   -05 12 47.4   21.8V 11FS53    G96  C~0UWw      
2011 04  06.29693  12 39 59.40   -05 12 46.8   21.5V 11FS53    G96  C~0UWw      

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     0.07       0.00    -0.07
     2   0.0001    -12.45    -0.00      -1.36    -0.34
     3   0.0001    -18.30     0.14      -1.68    -0.13
     4   0.0056   -764.60    -0.12     -58.89     0.14
     5   0.0056   -765.39    -0.12     -58.64     0.46
     6   0.0056   -766.23    -0.19     -58.95     0.21
     7   0.0135  -1857.19     0.21    -142.45     0.09
     8   0.0136  -1860.65     0.12    -142.72     0.10
     9   0.0136  -1864.14    -0.01    -142.90     0.19
    10   0.0136  -1867.18     0.32    -143.77    -0.38
    11   0.0162  -2217.91    -0.11    -170.09    -0.56
    12   0.0162  -2220.30    -0.07    -169.81    -0.07
    13   0.0162  -2222.66     0.04    -169.61     0.33
    14   0.0162  -2225.37    -0.23    -170.11     0.03

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.

11FS53    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