Orbit Fit and Astrometric record for 11OB60

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: 11OB60    
# Created Wed Dec  8 02:11:15 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     76 observations of     76
# Arc:   9.94y
# First observation: 2010/09/04
#  Last observation: 2020/08/14
# Chi-squared of fit:    85.98 DOF:    146 RMS:  0.19
# Min/Max residuals:    -0.58    0.93
# Exact a, adot, b, bdot, g, gdot:
  1.748282E-05  3.024908E-02 -4.331352E-06 -1.051918E-02  2.597578E-02 -7.811337E-03
# Covariance matrix:
  1.5747E-13 -5.2849E-14 -2.1609E-14  1.3069E-14 -3.9022E-14 -1.2436E-13
 -5.2849E-14  2.4735E-14  1.2384E-14 -7.4344E-15  1.4280E-14  7.0833E-14
 -2.1609E-14  1.2384E-14  9.3250E-14 -1.8367E-14  6.0915E-15  4.0424E-14
  1.3069E-14 -7.4344E-15 -1.8367E-14  5.4640E-15 -4.1734E-15 -2.4214E-14
 -3.9022E-14  1.4280E-14  6.0915E-15 -4.1734E-15  8.2401E-14  3.8931E-14
 -1.2436E-13  7.0833E-14  4.0424E-14 -2.4214E-14  3.8931E-14  2.3079E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.732913  -27.140096   -0.151221   -0.064675   -0.990550  2455443.805606
# Heliocentric elements and errors
Epoch:              2455444.5000  =  2010/09/05
Mean Anomaly:          353.92120 +/-     0.001
Argument of Peri:      225.88378 +/-     0.002
Long of Asc Node:      142.69074 +/-     0.000
Inclination:            19.42281 +/-     0.000
Eccentricity:         0.64371342 +/-    0.0000
Semi-Major Axis:    103.04651010 +/-    0.0150
Time of Perihelion: 2461896.0472 +/-      82.0
Perihelion:          36.71408843 +/-    0.0073
Aphelion:           169.37893177 +/-    0.0251
Period (y)             1046.0637 +/-      0.23
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.14274389 +/-    0.0004
Ecliptic Y          -17.84311597 +/-    0.0002
Ecliptic Z           -2.50652787 +/-    0.0000
Ecliptic XDOT         0.00065961 +/-    0.0000
Ecliptic YDOT         0.00325124 +/-    0.0000
Ecliptic ZDOT        -0.00105279 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.49286244 +/-    0.0003
Geocenter to KBO     38.49760772 +/-    0.0004
# Hcoef:  6.85

The following table shows the complete astrometric record for 11OB60. 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 (11OB60) followed by the observatory code and reference code for the source of the astrometry.

2010 09  04.30484  22 24 46.923  -13 56 01.82  22.5G 11OB60    F51  C~345b      
2010 09  04.31628  22 24 46.851  -13 56 02.08  22.4G 11OB60    F51  C~345b      
2010 09  14.30643  22 24 02.333  -14 01 03.38  22.2i 11OB60    F51  C~1w3n      
2010 09  29.31285  22 23 01.716  -14 07 39.54  23.8G 11OB60    F51  C~345b      
2011 07  27.47959  22 35 12.860  -13 29 44.50  23.0w 11OB60    F51  C~1w3n      
2011 07  27.49431  22 35 12.792  -13 29 44.67  23.3w 11OB60    F51  C~1w3n      
2011 07  27.50899  22 35 12.754  -13 29 45.58  23.1w 11OB60    F51  C~1w3n      
2011 07  27.52372  22 35 12.696  -13 29 46.07  23.1w 11OB60    F51  C~1w3n      
2011 08  24.43147  22 33 15.444  -13 45 08.91  22.9w 11OB60    F51  C~1w3n      
2011 08  24.44547  22 33 15.368  -13 45 09.46  23.0w 11OB60    F51  C~1w3n      
2011 08  24.45944  22 33 15.317  -13 45 09.89  23.0w 11OB60    F51  C~1w3n      
2011 08  24.47342  22 33 15.247  -13 45 10.54  23.0w 11OB60    F51  C~1w3n      
2012 08  17.48510  22 41 27.063  -13 35 45.28  22.6w 11OB60    F51  C~1w3n      
2012 11  16.22688  22 36 32.639  -14 07 48.50  22.2G 11OB60    F51  C~345b      
2013 08  09.44837  22 49 51.561  -13 24 01.87  22.6w 11OB60    F51  C~1w3n      
2013 08  09.45998  22 49 51.522  -13 24 02.11  22.5w 11OB60    F51  C~1w3n      
2013 08  09.46261  22 49 51.532  -13 24 02.50  22.6w 11OB60    F51  C~1w3n      
2013 08  09.47423  22 49 51.462  -13 24 02.70  22.5w 11OB60    F51  C~1w3n      
2013 08  09.47686  22 49 51.452  -13 24 02.91  22.4w 11OB60    F51  C~1w3n      
2013 08  09.49111  22 49 51.395  -13 24 03.51  22.5w 11OB60    F51  C~1w3n      
2013 08  26.49511  22 48 36.891  -13 33 58.58  21.6i 11OB60    F51  C~1w3n      
2013 08  31.45587  22 48 14.029  -13 36 50.01  22.3w 11OB60    F51  C~1w3n      
2013 10  06.31738  22 45 38.623  -13 54 24.23  22.8w 11OB60    F51  C~1w3n      
2013 10  06.33163  22 45 38.554  -13 54 24.76  22.7w 11OB60    F51  C~1w3n      
2014 07  08.50163  22 59 23.183  -12 59 06.29  22.4G 11OB60    F51  C~345b      
2014 07  25.52789  22 58 40.344  -13 07 29.42  22.7G 11OB60    F51  C~345b      
2014 07  25.54000  22 58 40.298  -13 07 29.60  22.9G 11OB60    F51  C~345b      
2014 07  25.55211  22 58 40.270  -13 07 30.03  22.6G 11OB60    F51  C~345b      
2014 07  25.56423  22 58 40.227  -13 07 30.38  22.7G 11OB60    F51  C~345b      
2014 09  18.30698  22 54 47.799  -13 38 52.83  22.6G 11OB60    F51  C~345b      
2014 11  17.25436  22 51 57.590  -13 54 59.46  23.7G 11OB60    F51  C~345b      
2015 07  24.52757  23 06 41.385  -12 57 43.59  22.8G 11OB60    F51  C~345b      
2015 07  24.54007  23 06 41.352  -12 57 43.94  22.5G 11OB60    F51  C~345b      
2015 07  24.55254  23 06 41.312  -12 57 44.46  22.6G 11OB60    F51  C~345b      
2015 07  24.56497  23 06 41.279  -12 57 44.49  22.0G 11OB60    F51  C~345b      
2015 08  14.49061  23 05 26.550  -13 09 51.19  23.1G 11OB60    F51  C~345b      
2015 08  14.50289  23 05 26.515  -13 09 51.47  22.1G 11OB60    F51  C~345b      
2015 08  14.51513  23 05 26.433  -13 09 52.30  22.1G 11OB60    F51  C~345b      
2015 08  14.52737  23 05 26.394  -13 09 52.35  22.2G 11OB60    F51  C~345b      
2015 08  21.45693  23 04 56.817  -13 14 04.83  22.1G 11OB60    F51  C~345b      
2015 08  21.46917  23 04 56.762  -13 14 05.79  22.9G 11OB60    F51  C~345b      
2015 08  21.48143  23 04 56.718  -13 14 06.13  22.4G 11OB60    F51  C~345b      
2015 08  21.49368  23 04 56.676  -13 14 06.57  22.3G 11OB60    F51  C~345b      
2015 11  03.27481  23 00 06.851  -13 46 21.11  22.4G 11OB60    F51  C~345b      
2015 11  03.28708  23 00 06.844  -13 46 21.43  22.5G 11OB60    F51  C~345b      
2015 11  03.29936  23 00 06.805  -13 46 21.24  22.4G 11OB60    F51  C~345b      
2015 11  03.31161  23 00 06.790  -13 46 21.64  23.0G 11OB60    F51  C~345b      
2016 08  14.55222  23 13 27.763  -13 00 22.58  22.7G 11OB60    F51  C~345b      
2016 11  14.29473  23 07 47.416  -13 38 11.47  22.6G 11OB60    F51  C~345b      
2017 07  25.56326  23 22 45.589  -12 37 15.51  23.2G 11OB60    F51  C~345b      
2017 07  25.57444  23 22 45.556  -12 37 15.75  22.8G 11OB60    F51  C~345b      
2017 07  25.58558  23 22 45.529  -12 37 16.08  22.9G 11OB60    F51  C~345b      
2017 07  25.59675  23 22 45.484  -12 37 16.48  22.5G 11OB60    F51  C~345b      
2017 08  18.48809  23 21 22.055  -12 51 38.29  22.9G 11OB60    F51  C~345b      
2017 08  18.49925  23 21 22.001  -12 51 38.64  22.8G 11OB60    F51  C~345b      
2017 08  18.51040  23 21 21.944  -12 51 39.05  23.0G 11OB60    F51  C~345b      
2017 08  18.52159  23 21 21.886  -12 51 40.00  21.7G 11OB60    F51  C~345b      
2017 09  15.40334  23 19 15.547  -13 08 41.15  21.9G 11OB60    F51  C~345b      
2017 09  15.40657  23 19 15.565  -13 08 41.14  22.3G 11OB60    F51  C~345b      
2017 09  15.41445  23 19 15.527  -13 08 41.43  22.4G 11OB60    F51  C~345b      
2017 09  15.41767  23 19 15.499  -13 08 41.41  22.6G 11OB60    F51  C~345b      
2017 09  15.42566  23 19 15.475  -13 08 41.96  22.1G 11OB60    F51  C~345b      
2017 09  15.42887  23 19 15.458  -13 08 42.01  22.1G 11OB60    F51  C~345b      
2017 09  15.43674  23 19 15.427  -13 08 41.96  21.8G 11OB60    F51  C~345b      
2017 09  15.43997  23 19 15.400  -13 08 42.18  22.6G 11OB60    F51  C~345b      
2017 09  23.39410  23 18 38.541  -13 13 02.48  23.1G 11OB60    F51  C~345b      
2017 09  23.40527  23 18 38.495  -13 13 02.72  22.4G 11OB60    F51  C~345b      
2017 09  23.41640  23 18 38.434  -13 13 03.30  22.6G 11OB60    F51  C~345b      
2017 09  23.42753  23 18 38.376  -13 13 03.79  22.5G 11OB60    F51  C~345b      
2017 10  11.37536  23 17 21.698  -13 21 13.71  22.4G 11OB60    F51  C~345b      
2017 10  11.38654  23 17 21.646  -13 21 13.64  22.3G 11OB60    F51  C~345b      
2017 10  11.39774  23 17 21.603  -13 21 12.71  22.0G 11OB60    F51  C~345b      
2017 11  07.33363  23 16 01.222  -13 27 46.40  22.6G 11OB60    F51  C~345b      
2020 08  14.53581  23 46 29.826  -12 09 29.34  22.3w 11OB60    F51  C~43yG      
2020 08  14.55817  23 46 29.735  -12 09 30.23  22.6w 11OB60    F51  C~43yG      
2020 08  14.56934  23 46 29.688  -12 09 30.88  22.7w 11OB60    F51  C~43yG      

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     0.34       0.00    -0.33
     2   0.0000      0.00     0.06       0.00    -0.23
     3   0.0274      0.00    -0.08       0.00    -0.25
     4   0.0685      0.00    -0.08       0.00    -0.01
     5   0.8930      0.00     0.15       0.00     0.08
     6   0.8931      0.00    -0.05       0.00     0.37
     7   0.8931      0.00     0.20       0.00    -0.08
     8   0.8931      0.00     0.15       0.00    -0.11
     9   0.9695      0.00    -0.06       0.00     0.07
    10   0.9696      0.00    -0.22       0.00    -0.01
    11   0.9696      0.00    -0.00       0.00     0.03
    12   0.9697      0.00    -0.07       0.00    -0.15
    13   1.9526      0.00    -0.08       0.00    -0.57
    14   2.2010      0.00    -0.31       0.00     0.42
    15   2.9299      0.00    -0.30       0.00     0.13
    16   2.9299      0.00    -0.15       0.00     0.29
    17   2.9299      0.00     0.16       0.00    -0.01
    18   2.9300      0.00    -0.16       0.00     0.20
    19   2.9300      0.00    -0.14       0.00     0.08
    20   2.9300      0.00    -0.10       0.00    -0.03
    21   2.9766      0.00    -0.03       0.00     0.26
    22   2.9901      0.00     0.14       0.00     0.22
    23   3.0883      0.00     0.11       0.00     0.24
    24   3.0884      0.00    -0.12       0.00     0.03
    25   3.8417      0.00    -0.14       0.00    -0.09
    26   3.8884      0.00     0.05       0.00    -0.31
    27   3.8884      0.00    -0.05       0.00    -0.10
    28   3.8884      0.00     0.12       0.00    -0.14
    29   3.8885      0.00     0.06       0.00    -0.10
    30   4.0383      0.00    -0.00       0.00     0.20
    31   4.2025      0.00     0.17       0.00     0.00
    32   4.8849      0.00     0.01       0.00    -0.06
    33   4.8850      0.00     0.08       0.00    -0.01
    34   4.8850      0.00     0.05       0.00    -0.12
    35   4.8850      0.00     0.11       0.00     0.25
    36   4.9423      0.00     0.06       0.00    -0.01
    37   4.9424      0.00     0.32       0.00     0.16
    38   4.9424      0.00    -0.14       0.00    -0.23
    39   4.9424      0.00     0.05       0.00     0.17
    40   4.9614      0.00    -0.10       0.00     0.33
    41   4.9614      0.00    -0.10       0.00    -0.19
    42   4.9615      0.00     0.06       0.00    -0.08
    43   4.9615      0.00     0.26       0.00    -0.07
    44   5.1635      0.00    -0.13       0.00     0.15
    45   5.1635      0.00     0.14       0.00    -0.07
    46   5.1636      0.00    -0.07       0.00     0.21
    47   5.1636      0.00     0.08       0.00    -0.09
    48   5.9446      0.00     0.07       0.00     0.08
    49   6.1957      0.00    -0.30       0.00     0.13
    50   6.8891      0.00     0.12       0.00    -0.06
    51   6.8892      0.00     0.09       0.00     0.07
    52   6.8892      0.00     0.15       0.00     0.12
    53   6.8892      0.00    -0.05       0.00     0.09
    54   6.9546      0.00     0.11       0.00    -0.13
    55   6.9547      0.00     0.01       0.00    -0.06
    56   6.9547      0.00    -0.13       0.00    -0.05
    57   6.9547      0.00    -0.29       0.00    -0.58
    58   7.0311      0.00    -0.42       0.00    -0.11
    59   7.0311      0.00     0.08       0.00     0.01
    60   7.0311      0.00     0.08       0.00    -0.01
    61   7.0311      0.00    -0.11       0.00     0.12
    62   7.0311      0.00     0.10       0.00    -0.16
    63   7.0311      0.00     0.07       0.00    -0.10
    64   7.0312      0.00     0.17       0.00     0.22
    65   7.0312      0.00     0.00       0.00     0.11
    66   7.0529      0.00     0.03       0.00     0.09
    67   7.0530      0.00     0.12       0.00     0.20
    68   7.0530      0.00    -0.02       0.00    -0.03
    69   7.0530      0.00    -0.11       0.00    -0.17
    70   7.1022      0.00     0.14       0.00    -0.58
    71   7.1022      0.00     0.02       0.00    -0.26
    72   7.1022      0.00     0.05       0.00     0.93
    73   7.1760      0.00     0.13       0.00    -0.01
    74   9.9445      0.00     0.08       0.00     0.03
    75   9.9446      0.00    -0.04       0.00     0.00
    76   9.9446      0.00    -0.12       0.00    -0.22

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.

11OB60    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       102.508   102.507   102.510
ecceobj         0.642     0.642     0.642
incobj         19.434    19.434    19.434
qmin           35.341    35.307    35.183
qmax          172.240   172.420   173.183
amean         101.041   101.057   101.094
amin           98.914    98.908    98.723
amax          104.324   104.367   104.810
emean           0.637     0.637     0.638
emin            0.623     0.622     0.622
emax            0.651     0.652     0.655
imean          17.903    18.022    17.935
imin           17.132    17.151    16.940
imax           18.930    19.172    19.182
excite_mean     0.708     0.708     0.708
fracstop        1.000     1.000     1.000
cjmean          2.984     2.983     2.983

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       204.7     196.7     199.2
kozaiamp        180.0     180.0     180.0