Orbit Fit and Astrometric record for 11BO170

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: 11BO170   
# Created Sat Dec  4 02:11:13 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    113 observations of    113
# Arc:   9.95y
# First observation: 2011/01/30
#  Last observation: 2021/01/11
# Chi-squared of fit:    87.79 DOF:    220 RMS:  0.16
# Min/Max residuals:    -0.57    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.685643E-05  2.981790E-02 -3.812624E-06 -7.246830E-03  2.737201E-02 -4.375488E-04
# Covariance matrix:
  9.1400E-14 -3.2348E-14 -7.5262E-15  5.1818E-15 -1.0279E-14 -8.5367E-14
 -3.2348E-14  1.7523E-14  5.2397E-15 -3.6437E-15  1.0989E-14  5.9876E-14
 -7.5262E-15  5.2397E-15  6.2311E-14 -1.2295E-14  3.2478E-15  2.0966E-14
  5.1818E-15 -3.6437E-15 -1.2295E-14  3.4424E-15 -2.7754E-15 -1.4575E-14
 -1.0279E-14  1.0989E-14  3.2478E-15 -2.7754E-15  6.1604E-14  4.3465E-14
 -8.5367E-14  5.9876E-14  2.0966E-14 -1.4575E-14  4.3465E-14  2.3953E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.984174  138.875269    0.150893   -0.101809   -0.971271  2455591.847326
# Heliocentric elements and errors
Epoch:              2455592.5000  =  2011/01/31
Mean Anomaly:          355.89530 +/-     0.004
Argument of Peri:      209.50076 +/-     0.006
Long of Asc Node:      296.00773 +/-     0.000
Inclination:            14.85813 +/-     0.000
Eccentricity:         0.19183879 +/-    0.0000
Semi-Major Axis:     46.36080119 +/-    0.0021
Time of Perihelion: 2456907.1296 +/-       7.9
Perihelion:          37.46700102 +/-    0.0022
Aphelion:            55.25460137 +/-    0.0029
Period (y)              315.6709 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.00275387 +/-    0.0002
Ecliptic Y           24.65224106 +/-    0.0002
Ecliptic Z           -3.80893108 +/-    0.0000
Ecliptic XDOT        -0.00187295 +/-    0.0000
Ecliptic YDOT        -0.00231889 +/-    0.0000
Ecliptic ZDOT        -0.00071633 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.50194670 +/-    0.0002
Geocenter to KBO     36.53370677 +/-    0.0003
# Hcoef:  6.92

The following table shows the complete astrometric record for 11BO170. 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 (11BO170) followed by the observatory code and reference code for the source of the astrometry.

2011 01  30.34656  09 17 41.404  +09 28 14.19  23.1G 11BO170   F51  C~345R      
2011 01  30.36114  09 17 41.324  +09 28 14.62  22.4G 11BO170   F51  C~345R      
2011 01  30.37675  09 17 41.242  +09 28 14.92  22.4G 11BO170   F51  C~345R      
2011 01  30.39129  09 17 41.164  +09 28 15.18  22.3G 11BO170   F51  C~345R      
2011 02  02.50085  09 17 24.603  +09 29 15.20  22.3G 11BO170   F51  C~345R      
2011 02  02.51598  09 17 24.528  +09 29 15.79  22.7G 11BO170   F51  C~345R      
2011 02  02.53185  09 17 24.427  +09 29 15.84  22.9G 11BO170   F51  C~345R      
2011 02  02.54709  09 17 24.359  +09 29 16.26  22.6G 11BO170   F51  C~345R      
2011 02  03.36976  09 17 19.962  +09 29 32.74  22.2G 11BO170   F51  C~345R      
2011 02  03.38519  09 17 19.901  +09 29 32.78  22.9G 11BO170   F51  C~345R      
2011 02  03.48237  09 17 19.352  +09 29 34.75  23.0G 11BO170   F51  C~345R      
2011 02  03.49867  09 17 19.281  +09 29 35.09  22.4G 11BO170   F51  C~345R      
2012 10  19.60879  09 32 28.000  +07 47 12.66  22.4G 11BO170   F51  C~345R      
2012 11  30.63156  09 33 19.666  +07 32 13.33  21.5G 11BO170   F51  C~345R      
2013 02  08.48371  09 28 58.230  +07 40 58.72  22.0G 11BO170   F51  C~345R      
2013 02  08.49950  09 28 58.132  +07 40 59.02  22.5G 11BO170   F51  C~345R      
2013 02  08.51534  09 28 58.038  +07 40 59.36  22.0G 11BO170   F51  C~345R      
2013 02  08.53323  09 28 57.961  +07 40 59.86  22.7G 11BO170   F51  C~345R      
2013 02  10.50841  09 28 47.485  +07 41 42.73  22.0G 11BO170   F51  C~345R      
2013 02  21.43587  09 27 50.294  +07 45 50.64  22.0G 11BO170   F51  C~345R      
2013 02  21.44978  09 27 50.213  +07 45 50.53  21.5G 11BO170   F51  C~345R      
2013 03  04.29350  09 26 56.490  +07 50 06.92  22.2G 11BO170   F51  C~345R      
2013 03  04.30779  09 26 56.399  +07 50 07.12  22.4G 11BO170   F51  C~345R      
2013 03  04.32203  09 26 56.358  +07 50 07.39  22.6G 11BO170   F51  C~345R      
2013 03  04.33628  09 26 56.267  +07 50 07.58  22.8G 11BO170   F51  C~345R      
2014 01  05.44015  09 37 45.844  +06 36 12.40  22.3G 11BO170   F51  C~345R      
2014 01  05.45528  09 37 45.773  +06 36 12.19  23.6G 11BO170   F51  C~345R      
2014 01  05.47047  09 37 45.726  +06 36 12.12  22.7G 11BO170   F51  C~345R      
2014 01  05.48561  09 37 45.678  +06 36 12.56  22.1G 11BO170   F51  C~345R      
2014 01  26.44113  09 36 09.749  +06 40 46.32  22.8G 11BO170   F51  C~345R      
2014 01  26.45351  09 36 09.696  +06 40 46.74  22.1G 11BO170   F51  C~345R      
2014 01  26.46593  09 36 09.622  +06 40 46.78  22.3G 11BO170   F51  C~345R      
2014 01  26.47843  09 36 09.560  +06 40 47.12  22.4G 11BO170   F51  C~345R      
2014 02  20.41217  09 33 59.556  +06 49 34.22  22.9G 11BO170   F51  C~345R      
2014 02  28.35775  09 33 19.250  +06 52 45.40  22.1G 11BO170   F51  C~345R      
2014 02  28.37038  09 33 19.176  +06 52 45.74  22.2G 11BO170   F51  C~345R      
2014 02  28.38206  09 33 19.127  +06 52 45.74  22.9G 11BO170   F51  C~345R      
2014 02  28.39374  09 33 19.061  +06 52 46.21  22.8G 11BO170   F51  C~345R      
2014 03  24.31486  09 31 34.841  +07 02 13.51  22.6G 11BO170   F51  C~345R      
2014 04  24.26447  09 30 24.240  +07 11 16.75  22.5G 11BO170   F51  C~345R      
2015 01  15.43900  09 43 03.851  +05 41 51.96  21.9G 11BO170   F51  C~345R      
2015 01  15.45096  09 43 03.803  +05 41 51.89  22.1G 11BO170   F51  C~345R      
2015 01  15.46293  09 43 03.766  +05 41 52.02  22.3G 11BO170   F51  C~345R      
2015 01  17.54023  09 42 54.326  +05 42 18.51  22.2G 11BO170   F51  C~345R      
2015 01  17.55315  09 42 54.277  +05 42 18.76  22.1G 11BO170   F51  C~345R      
2015 01  17.56602  09 42 54.225  +05 42 18.75  22.4G 11BO170   F51  C~345R      
2015 12  06.62937  09 50 56.204  +04 45 30.53  21.8G 11BO170   F51  C~345R      
2015 12  09.56908  09 50 52.792  +04 44 58.07  23.1G 11BO170   F51  C~345R      
2015 12  09.58199  09 50 52.779  +04 44 58.30  22.2G 11BO170   F51  C~345R      
2015 12  09.59440  09 50 52.754  +04 44 58.08  22.5G 11BO170   F51  C~345R      
2015 12  09.60685  09 50 52.725  +04 44 57.82  22.6G 11BO170   F51  C~345R      
2015 12  12.62106  09 50 48.309  +04 44 29.86  22.6G 11BO170   F51  C~345R      
2015 12  12.63031  09 50 48.298  +04 44 30.61  23.1G 11BO170   F51  C~345R      
2015 12  12.63952  09 50 48.277  +04 44 30.46  22.1G 11BO170   F51  C~345R      
2015 12  12.64871  09 50 48.282  +04 44 29.91  22.6G 11BO170   F51  C~345R      
2016 01  04.50281  09 49 47.229  +04 44 00.15  23.0G 11BO170   F51  C~345R      
2016 01  04.51388  09 49 47.192  +04 44 00.17  22.7G 11BO170   F51  C~345R      
2016 01  04.52499  09 49 47.160  +04 44 00.33  22.3G 11BO170   F51  C~345R      
2016 01  04.53617  09 49 47.104  +04 44 00.40  22.7G 11BO170   F51  C~345R      
2016 01  16.51619  09 48 58.650  +04 45 45.55  23.0G 11BO170   F51  C~345R      
2016 01  16.52741  09 48 58.579  +04 45 45.69  22.6G 11BO170   F51  C~345R      
2016 01  16.53860  09 48 58.553  +04 45 45.52  22.3G 11BO170   F51  C~345R      
2016 01  16.54979  09 48 58.489  +04 45 46.02  22.4G 11BO170   F51  C~345R      
2016 01  29.46714  09 47 57.452  +04 48 59.46  22.4G 11BO170   F51  C~345R      
2016 02  05.44522  09 47 22.035  +04 51 13.54  22.3G 11BO170   F51  C~345R      
2016 02  05.45813  09 47 21.972  +04 51 13.55  22.2G 11BO170   F51  C~345R      
2016 02  05.47098  09 47 21.904  +04 51 13.93  22.4G 11BO170   F51  C~345R      
2016 02  05.48388  09 47 21.836  +04 51 14.12  22.4G 11BO170   F51  C~345R      
2016 02  06.43177  09 47 16.940  +04 51 33.54  22.5G 11BO170   F51  C~345R      
2016 02  06.44364  09 47 16.855  +04 51 33.68  22.3G 11BO170   F51  C~345R      
2016 02  06.45556  09 47 16.830  +04 51 34.26  22.9G 11BO170   F51  C~345R      
2016 02  06.46754  09 47 16.758  +04 51 34.28  22.3G 11BO170   F51  C~345R      
2016 02  14.41262  09 46 35.354  +04 54 28.93  22.6G 11BO170   F51  C~345R      
2016 02  27.40011  09 45 28.229  +04 59 44.68  21.2G 11BO170   F51  C~345R      
2016 03  05.38102  09 44 53.752  +05 02 43.68  22.9G 11BO170   F51  C~345R      
2016 03  05.39312  09 44 53.689  +05 02 44.17  22.6G 11BO170   F51  C~345R      
2016 03  13.29097  09 44 17.032  +05 06 08.13  22.0G 11BO170   F51  C~345R      
2016 03  13.32822  09 44 16.832  +05 06 08.84  22.6G 11BO170   F51  C~345R      
2016 03  30.24562  09 43 10.625  +05 13 04.31  22.2G 11BO170   F51  C~345R      
2016 03  30.25696  09 43 10.603  +05 13 04.63  22.5G 11BO170   F51  C~345R      
2016 03  30.27981  09 43 10.508  +05 13 05.19  22.6G 11BO170   F51  C~345R      
2016 04  25.26776  09 42 13.631  +05 21 18.46  22.1G 11BO170   F51  C~345R      
2016 04  25.27940  09 42 13.639  +05 21 18.50  22.2G 11BO170   F51  C~345R      
2016 04  25.29135  09 42 13.608  +05 21 18.81  22.3G 11BO170   F51  C~345R      
2017 01  29.49849  09 53 51.806  +03 52 39.98  22.4G 11BO170   F51  C~345R      
2017 01  29.51050  09 53 51.752  +03 52 40.08  22.6G 11BO170   F51  C~345R      
2017 01  29.52248  09 53 51.685  +03 52 40.37  21.7G 11BO170   F51  C~345R      
2017 01  29.53447  09 53 51.634  +03 52 40.53  23.2G 11BO170   F51  C~345R      
2017 02  27.36007  09 51 23.602  +04 03 30.26  22.4G 11BO170   F51  C~345R      
2017 02  27.37137  09 51 23.537  +04 03 30.29  22.9G 11BO170   F51  C~345S      
2017 02  27.38267  09 51 23.474  +04 03 30.74  22.4G 11BO170   F51  C~345S      
2017 03  04.36324  09 50 58.684  +04 05 40.64  22.4G 11BO170   F51  C~345S      
2017 03  04.37689  09 50 58.610  +04 05 41.11  22.6G 11BO170   F51  C~345S      
2017 03  31.31088  09 49 04.774  +04 17 16.73  22.6G 11BO170   F51  C~345S      
2017 03  31.32334  09 49 04.734  +04 17 17.21  22.5G 11BO170   F51  C~345S      
2017 03  31.34822  09 49 04.649  +04 17 17.63  22.2G 11BO170   F51  C~345S      
2017 12  29.57919  10 01 54.256  +02 51 17.55  22.8G 11BO170   F51  C~345S      
2018 01  12.47090  10 01 05.906  +02 52 16.30  22.5G 11BO170   F51  C~345S      
2018 01  12.48254  10 01 05.853  +02 52 16.33  22.3G 11BO170   F51  C~345S      
2018 01  12.49423  10 01 05.808  +02 52 16.43  22.3G 11BO170   F51  C~345S      
2018 01  12.53585  10 01 05.616  +02 52 16.84  21.7G 11BO170   F51  C~345S      
2018 01  13.50839  10 01 01.719  +02 52 24.97  23.1G 11BO170   F51  C~345S      
2018 01  13.52016  10 01 01.676  +02 52 25.33  23.3G 11BO170   F51  C~345S      
2018 01  13.53193  10 01 01.659  +02 52 25.33  22.8G 11BO170   F51  C~345S      
2018 01  13.54377  10 01 01.604  +02 52 25.81  23.1G 11BO170   F51  C~345S      
2018 03  11.38121  09 56 23.548  +03 12 04.85  21.4G 11BO170   F51  C~345S      
2018 03  17.33760  09 55 56.514  +03 14 46.93  22.4G 11BO170   F51  C~345S      
2018 03  17.35031  09 55 56.455  +03 14 46.77  22.4G 11BO170   F51  C~345S      
2018 03  17.36301  09 55 56.389  +03 14 47.22  22.6G 11BO170   F51  C~345S      
2018 03  17.37569  09 55 56.337  +03 14 47.61  22.5G 11BO170   F51  C~345S      
2021 01  11.441210 10 18 45.545  +00 03 05.84  22.7G 11BO170   G37  C~4U6G      
2021 01  11.481830 10 18 45.381  +00 03 05.98        11BO170   G37  C~4U6G      
2021 01  11.521480 10 18 45.259  +00 03 06.45        11BO170   G37  C~4U6G      

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    -0.10
     2   0.0000      0.00     0.03       0.00     0.05
     3   0.0001      0.00     0.06       0.00     0.06
     4   0.0001      0.00     0.06       0.00     0.04
     5   0.0086      0.00    -0.01       0.00    -0.08
     6   0.0087      0.00     0.10       0.00     0.21
     7   0.0087      0.00    -0.12       0.00    -0.05
     8   0.0088      0.00     0.09       0.00     0.07
     9   0.0110      0.00    -0.20       0.00     0.27
    10   0.0111      0.00     0.14       0.00    -0.00
    11   0.0113      0.00    -0.17       0.00     0.03
    12   0.0114      0.00     0.10       0.00     0.05
    13   1.7201      0.00     0.04       0.00    -0.21
    14   1.8351      0.00     0.14       0.00     0.01
    15   2.0264      0.00     0.13       0.00    -0.02
    16   2.0264      0.00    -0.06       0.00    -0.06
    17   2.0265      0.00    -0.19       0.00    -0.06
    18   2.0265      0.00     0.10       0.00     0.06
    19   2.0319      0.00    -0.05       0.00     0.12
    20   2.0618      0.00     0.23       0.00    -0.14
    21   2.0619      0.00     0.11       0.00    -0.57
    22   2.0916      0.00     0.09       0.00     0.35
    23   2.0916      0.00    -0.24       0.00     0.21
    24   2.0917      0.00     0.18       0.00     0.14
    25   2.0917      0.00    -0.15       0.00    -0.00
    26   2.9325      0.00    -0.09       0.00     0.32
    27   2.9325      0.00    -0.23       0.00    -0.01
    28   2.9326      0.00    -0.01       0.00    -0.21
    29   2.9326      0.00     0.19       0.00     0.11
    30   2.9900      0.00    -0.06       0.00    -0.05
    31   2.9900      0.00     0.10       0.00     0.16
    32   2.9901      0.00    -0.05       0.00    -0.02
    33   2.9901      0.00    -0.02       0.00     0.10
    34   3.0584      0.00    -0.17       0.00     0.11
    35   3.0801      0.00     0.11       0.00    -0.04
    36   3.0801      0.00    -0.05       0.00    -0.01
    37   3.0802      0.00     0.10       0.00    -0.29
    38   3.0802      0.00    -0.00       0.00    -0.11
    39   3.1457      0.00    -0.08       0.00    -0.25
    40   3.2304      0.00     0.12       0.00    -0.25
    41   3.9592      0.00    -0.16       0.00     0.19
    42   3.9592      0.00    -0.06       0.00    -0.03
    43   3.9593      0.00     0.20       0.00    -0.04
    44   3.9649      0.00    -0.18       0.00     0.01
    45   3.9650      0.00    -0.01       0.00     0.09
    46   3.9650      0.00     0.12       0.00    -0.09
    47   4.8495      0.00    -0.02       0.00     0.08
    48   4.8576      0.00     0.02       0.00    -0.13
    49   4.8576      0.00     0.10       0.00     0.23
    50   4.8576      0.00    -0.02       0.00     0.14
    51   4.8577      0.00    -0.19       0.00     0.00
    52   4.8659      0.00    -0.05       0.00    -0.40
    53   4.8659      0.00     0.02       0.00     0.42
    54   4.8660      0.00    -0.06       0.00     0.35
    55   4.8660      0.00     0.26       0.00    -0.13
    56   4.9286      0.00    -0.10       0.00    -0.12
    57   4.9286      0.00    -0.03       0.00    -0.16
    58   4.9286      0.00     0.11       0.00    -0.06
    59   4.9287      0.00    -0.11       0.00    -0.05
    60   4.9615      0.00     0.11       0.00     0.01
    61   4.9615      0.00    -0.20       0.00     0.02
    62   4.9615      0.00     0.17       0.00    -0.29
    63   4.9615      0.00    -0.03       0.00     0.08
    64   4.9969      0.00    -0.14       0.00    -0.17
    65   5.0160      0.00    -0.06       0.00     0.19
    66   5.0160      0.00     0.01       0.00    -0.06
    67   5.0161      0.00     0.00       0.00     0.06
    68   5.0161      0.00    -0.00       0.00    -0.02
    69   5.0187      0.00    -0.08       0.00    -0.12
    70   5.0187      0.00    -0.42       0.00    -0.23
    71   5.0188      0.00     0.15       0.00     0.10
    72   5.0188      0.00     0.01       0.00    -0.13
    73   5.0406      0.00     0.16       0.00    -0.04
    74   5.0761      0.00    -0.28       0.00    -0.42
    75   5.0952      0.00     0.04       0.00    -0.13
    76   5.0953      0.00    -0.01       0.00     0.04
    77   5.1169      0.00     0.03       0.00     0.46
    78   5.1170      0.00    -0.43       0.00     0.22
    79   5.1633      0.00    -0.21       0.00    -0.12
    80   5.1633      0.00     0.04       0.00    -0.07
    81   5.1634      0.00    -0.22       0.00    -0.03
    82   5.2346      0.00    -0.04       0.00     0.06
    83   5.2346      0.00     0.27       0.00    -0.07
    84   5.2346      0.00    -0.01       0.00     0.08
    85   5.9990      0.00    -0.09       0.00    -0.03
    86   5.9991      0.00     0.00       0.00    -0.14
    87   5.9991      0.00    -0.10       0.00    -0.06
    88   5.9991      0.00     0.05       0.00    -0.12
    89   6.0781      0.00     0.06       0.00     0.13
    90   6.0781      0.00    -0.04       0.00    -0.13
    91   6.0781      0.00    -0.12       0.00     0.03
    92   6.0918      0.00     0.17       0.00    -0.11
    93   6.0918      0.00     0.08       0.00    -0.00
    94   6.1655      0.00     0.05       0.00    -0.05
    95   6.1656      0.00     0.09       0.00     0.13
    96   6.1656      0.00     0.11       0.00    -0.05
    97   6.9137      0.00    -0.02       0.00    -0.06
    98   6.9517      0.00     0.01       0.00     0.07
    99   6.9518      0.00    -0.07       0.00    -0.00
   100   6.9518      0.00    -0.03       0.00     0.00
   101   6.9519      0.00    -0.36       0.00     0.06
   102   6.9546      0.00    -0.15       0.00    -0.23
   103   6.9546      0.00    -0.06       0.00     0.03
   104   6.9546      0.00     0.41       0.00    -0.08
   105   6.9547      0.00     0.33       0.00     0.30
   106   7.1103      0.00     0.07       0.00     0.09
   107   7.1266      0.00     0.08       0.00     0.48
   108   7.1266      0.00     0.05       0.00    -0.03
   109   7.1267      0.00    -0.08       0.00     0.08
   110   7.1267      0.00    -0.01       0.00     0.13
   111   9.9496      0.00     0.09       0.00    -0.03
   112   9.9497      0.00    -0.13       0.00    -0.09
   113   9.9498      0.00     0.22       0.00     0.19

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.

11BO170    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.548    46.548    46.548
ecceobj         0.194     0.194     0.194
incobj         14.842    14.842    14.842
qmin           36.551    36.556    36.548
qmax           56.910    56.971    56.869
amean          46.521    46.521    46.521
amin           46.114    46.111    46.116
amax           46.995    47.005    46.995
emean           0.196     0.196     0.196
emin            0.182     0.182     0.182
emax            0.211     0.212     0.212
imean          16.267    16.267    16.267
imin           15.734    15.731    15.735
imax           16.792    16.791    16.792
excite_mean     0.342     0.342     0.342
fracstop        1.000     1.000     1.000
cjmean          2.987     2.987     2.987

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       179.9     179.9     180.0
kozaiamp        179.9     179.9     180.0