Orbit Fit and Astrometric record for 11OF45

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: 11OF45    
# Created Mon Dec 11 02:37:45 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   40 observations of   40
# Arc:   3.09y
# First observation: 2011/07/26
#  Last observation: 2014/08/28
# Chi-squared of fit:   209.27 DOF:   74 RMS:  0.40
# Min/Max residuals:    -0.83    1.34
# Exact a, adot, b, bdot, g, gdot:
  3.280933E-05  2.942370E-01  1.072828E-05  1.040479E-01  1.377174E-01 -3.090411E-02
# Covariance matrix:
  7.3681E-14 -2.1833E-14  6.1666E-16 -1.8685E-15  6.3717E-14 -4.7407E-15
 -2.1833E-14  8.9938E-14 -7.4737E-15  2.6551E-14  9.1689E-14  5.2123E-14
  6.1666E-16 -7.4737E-15  5.8354E-14 -2.4580E-14 -6.3745E-15 -5.2222E-15
 -1.8685E-15  2.6551E-14 -2.4580E-14  2.1894E-14  2.3921E-14  1.8456E-14
  6.3717E-14  9.1689E-14 -6.3745E-15  2.3921E-14  3.6022E-13  4.2717E-14
 -4.7407E-15  5.2123E-14 -5.2222E-15  1.8456E-14  4.2717E-14  3.6552E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.403178  -48.889938    0.147235   -0.042130   -1.002480  2455768.940906
# Heliocentric elements and errors
Epoch:              2455768.5000  =  2011/07/26
Mean Anomaly:          313.83784 +/-     0.179
Argument of Peri:       53.19476 +/-     0.000
Long of Asc Node:      316.04973 +/-     0.000
Inclination:            19.60367 +/-     0.000
Eccentricity:         0.14295951 +/-    0.0004
Semi-Major Axis:      9.05215128 +/-    0.0000
Time of Perihelion: 2457044.0861 +/-       5.0
Perihelion:           7.75806013 +/-    0.0038
Aphelion:            10.34624243 +/-    0.0038
Period (y)               27.2355 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            5.32289830 +/-    0.0001
Ecliptic Y           -6.31828224 +/-    0.0002
Ecliptic Z           -0.30434560 +/-    0.0000
Ecliptic XDOT         0.00405788 +/-    0.0000
Ecliptic YDOT         0.00424882 +/-    0.0000
Ecliptic ZDOT         0.00209249 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    8.26722731 +/-    0.0002
Geocenter to KBO      7.26130357 +/-    0.0002
# Hcoef: 12.69

The following table shows the complete astrometric record for 11OF45. 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 (11OF45) followed by the observatory code and reference code for the source of the astrometry.

2011 07  26.44014  20 57 03.762  -19 44 58.92  21.6w 11OF45    F51  C~0XJW      
2011 07  26.45390  20 57 03.442  -19 44 59.38  21.7w 11OF45    F51  C~0XJW      
2011 07  26.46766  20 57 03.134  -19 44 59.91  21.6w 11OF45    F51  C~0XJW      
2011 07  26.48142  20 57 02.825  -19 45 00.35  21.6w 11OF45    F51  C~0XJW      
2011 07  29.431908 20 55 56.812  -19 46 35.38  21.3R 11OF45    568  C~0XJW      
2011 07  29.433242 20 55 56.780  -19 46 35.46  21.2R 11OF45    568  C~0XJW      
2011 07  29.434731 20 55 56.749  -19 46 35.50  21.2R 11OF45    568  C~0XJW      
2011 07  29.435954 20 55 56.719  -19 46 35.54  21.1R 11OF45    568  C~0XJW      
2011 07  31.240885 20 55 16.07   -19 47 33.5   21.5V 11OF45    H21  C~0XJW      
2011 07  31.246815 20 55 15.86   -19 47 33.4   21.3V 11OF45    H21  C~0XJW      
2011 07  31.252745 20 55 15.76   -19 47 34.0   21.4V 11OF45    H21  C~0XJW      
2011 07  31.259697 20 55 15.60   -19 47 34.1   21.2V 11OF45    H21  C~0XJW      
2011 08  01.370730 20 54 50.472  -19 48 07.54  21.3R 11OF45    568  C~0XJW      
2011 08  01.372147 20 54 50.444  -19 48 07.65  21.3R 11OF45    568  C~0XJW      
2011 08  01.373558 20 54 50.408  -19 48 07.66  21.2R 11OF45    568  C~0XJW      
2011 08  07.347039 20 52 34.949  -19 51 02.82  21.3R 11OF45    568  C~0XJW      
2011 08  07.350769 20 52 34.876  -19 51 02.92  21.3R 11OF45    568  C~0XJW      
2011 08  10.42919  20 51 25.42   -19 52 25.1   20.5R 11OF45    F65  C~0XJW      
2011 08  10.43387  20 51 25.32   -19 52 24.9   20.4R 11OF45    F65  C~0XJW      
2011 08  19.508132 20 48 06.123  -19 55 38.50  21.4R 11OF45    568  C~0Xc0      
2011 08  19.509566 20 48 06.086  -19 55 38.50  21.5R 11OF45    568  C~0Xc0      
2011 09  04.20725  20 43 01.09   -19 57 36.0         11OF45    291  C~0Y0E      
2011 09  04.22362  20 43 00.92   -19 57 36.0         11OF45    291  C~0Y0E      
2011 09  04.23629  20 43 00.62   -19 57 36.0         11OF45    291  C~0Y0E      
2013 08  14.06427  22 50 50.67   +03 42 01.7         11OF45    621  C~0tvy      
2013 08  14.10122  22 50 49.94   +03 42 00.1   21.8R 11OF45    621  C~0tvy      
2013 08  15.04366  22 50 31.47   +03 41 39.5         11OF45    621  C~0tvy      
2013 08  15.10097  22 50 30.35   +03 41 39.0   21.7R 11OF45    621  C~0tvy      
2013 08  28.93731  22 45 42.84   +03 32 06.0         11OF45    621  C~0tvy      
2013 08  28.97425  22 45 41.97   +03 32 04.5   22.3R 11OF45    621  C~0tvy      
2013 08  29.95027  22 45 20.88   +03 31 07.9         11OF45    621  C~0tvy      
2013 08  29.98721  22 45 20.14   +03 31 05.7   22.6R 11OF45    621  C~0tvy      
2013 09  04.21019  22 43 26.93   +03 25 32.3   21.7R 11OF45    H36  C~0tvy      
2013 09  04.23447  22 43 26.41   +03 25 30.6   20.8R 11OF45    H36  C~0tvy      
2013 09  04.24610  22 43 26.22   +03 25 29.7   21.6R 11OF45    H36  C~0tvy      
2014 07  29.40615  23 56 33.78   +15 40 27.4   21.7R 11OF45    G37  C~16ck      
2014 07  29.45401  23 56 33.36   +15 40 32.6         11OF45    G37  C~16ck      
2014 08  28.55478  23 49 22.261  +16 06 14.90  21.6w 11OF45    F51  C~17ll      
2014 08  28.56669  23 49 22.021  +16 06 14.84  21.5w 11OF45    F51  C~17ll      
2014 08  28.57858  23 49 21.772  +16 06 14.93  21.6w 11OF45    F51  C~17ll      

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    -0.83       0.00    -0.28
  2   0.0000      0.00     0.28       0.00     0.31
  3   0.0001      0.00     0.36       0.00     0.23
  4   0.0001      0.00     0.41       0.00     0.23
  5   0.0082      0.00     0.08       0.00     0.21
  6   0.0082      0.00     0.06       0.00     0.17
  7   0.0082      0.00     0.10       0.00     0.18
  8   0.0082      0.00     0.08       0.00     0.18
  9   0.0131      0.00     0.99       0.00    -0.51
 10   0.0132      0.00    -0.12       0.00    -0.22
 11   0.0132      0.00     0.43       0.00    -0.64
 12   0.0132      0.00     0.43       0.00    -0.52
 13   0.0162      0.00     0.12       0.00     0.24
 14   0.0162      0.00     0.19       0.00     0.17
 15   0.0162      0.00     0.14       0.00     0.21
 16   0.0326      0.00     0.17       0.00     0.20
 17   0.0326      0.00     0.36       0.00     0.21
 18   0.0410      0.00     0.32       0.00    -0.40
 19   0.0411      0.00     0.43       0.00    -0.08
 20   0.0659      0.00     0.29       0.00     0.22
 21   0.0659      0.00     0.20       0.00     0.24
 22   0.1089      0.00    -0.65       0.00    -0.15
 23   0.1089      0.00     1.12       0.00    -0.20
 24   0.1090      0.00    -0.04       0.00    -0.24
 25   2.0524      0.00     0.12       0.00     0.02
 26   2.0525      0.00     0.15       0.00    -0.78
 27   2.0550      0.00    -0.26       0.00     0.11
 28   2.0552      0.00     0.14       0.00     1.00
 29   2.0931      0.00     1.34       0.00    -0.77
 30   2.0932      0.00     0.41       0.00    -0.17
 31   2.0959      0.00    -0.22       0.00    -0.13
 32   2.0960      0.00     0.83       0.00    -0.15
 33   2.1103      0.00    -0.46       0.00     0.53
 34   2.1103      0.00    -0.22       0.00     0.50
 35   2.1104      0.00     0.78       0.00     0.40
 36   3.0088      0.00     0.09       0.00    -0.01
 37   3.0089      0.00     0.05       0.00     0.07
 38   3.0913      0.00     0.40       0.00    -0.17
 39   3.0914      0.00     0.34       0.00    -0.15
 40   3.0914      0.00     0.14       0.00     0.02

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.

11OF45    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         9.001     9.001     9.001
ecceobj         0.142     0.142     0.142
incobj         19.613    19.613    19.613
qmin            7.719     7.719     7.719
qmax           10.283    10.283    10.283
amean           9.001     9.001     9.001
amin            9.001     9.001     9.001
amax            9.001     9.001     9.001
emean           0.142     0.142     0.142
emin            0.142     0.142     0.142
emax            0.142     0.142     0.142
imean          21.013    21.014    21.013
imin           21.013    21.014    21.013
imax           21.013    21.014    21.013
excite_mean     0.386     0.386     0.386
fracstop        0.000     0.000     0.000
cjmean          4.352     4.352     4.352

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        54.2      54.2      54.2
kozaiamp          0.0       0.0       0.0