Orbit Fit and Astrometric record for 11BM170

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: 11BM170   
# Created Sat Jun  6 01:10:27 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   89 observations of   89
# Arc:   9.88y
# First observation: 2010/03/13
#  Last observation: 2020/01/28
# Chi-squared of fit:    80.15 DOF:  172 RMS:  0.17
# Min/Max residuals:    -0.83    0.68
# Exact a, adot, b, bdot, g, gdot:
  1.705624E-05  2.925353E-02 -7.486090E-06 -1.258069E-02  2.703622E-02  1.782730E-03
# Covariance matrix:
  1.4656E-13 -4.5009E-14 -2.2480E-14  1.2822E-14 -1.6681E-14 -1.0792E-13
 -4.5009E-14  2.0351E-14  1.2746E-14 -7.4598E-15  6.8963E-15  6.2578E-14
 -2.2480E-14  1.2746E-14  1.0466E-13 -2.0650E-14  9.8191E-15  4.6394E-14
  1.2822E-14 -7.4598E-15 -2.0650E-14  6.1562E-15 -3.1323E-15 -2.6856E-14
 -1.6681E-14  6.8963E-15  9.8191E-15 -3.1323E-15  4.0642E-14  2.9098E-14
 -1.0792E-13  6.2578E-14  4.6394E-14 -2.6856E-14  2.9098E-14  2.2561E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   42.462162  147.674301   -0.420427    0.611210   -0.667946  2455269.039526
# Heliocentric elements and errors
Epoch:              2455268.5000  =  2010/03/13
Mean Anomaly:            8.09150 +/-     0.002
Argument of Peri:       97.62865 +/-     0.003
Long of Asc Node:       24.82211 +/-     0.000
Inclination:            46.79694 +/-     0.000
Eccentricity:         0.33049955 +/-    0.0000
Semi-Major Axis:     55.64500365 +/-    0.0028
Time of Perihelion: 2451860.7766 +/-       0.7
Perihelion:          37.25435514 +/-    0.0025
Aphelion:            74.03565217 +/-    0.0040
Period (y)              415.0950 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.04413014 +/-    0.0002
Ecliptic Y           14.71685840 +/-    0.0001
Ecliptic Z           24.97014183 +/-    0.0002
Ecliptic XDOT        -0.00242112 +/-    0.0000
Ecliptic YDOT        -0.00196632 +/-    0.0000
Ecliptic ZDOT        -0.00081803 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.65913343 +/-    0.0002
Geocenter to KBO     36.98741992 +/-    0.0003
# Hcoef:  5.85

The following table shows the complete astrometric record for 11BM170. 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 (11BM170) followed by the observatory code and reference code for the source of the astrometry.

2010 03  13.53876  11 25 55.154  +50 55 26.79  20.9G 11BM170   F51  C~345Q      
2010 03  13.54748  11 25 55.099  +50 55 26.41  21.1G 11BM170   F51  C~345Q      
2010 03  17.51422  11 25 22.188  +50 55 54.82  21.1G 11BM170   F51  C~345Q      
2010 03  17.51574  11 25 22.191  +50 55 54.88  20.8G 11BM170   F51  C~345Q      
2010 03  17.52411  11 25 22.118  +50 55 55.08  19.9G 11BM170   F51  C~345Q      
2010 03  17.52564  11 25 22.105  +50 55 54.94  21.0G 11BM170   F51  C~345Q      
2011 01  22.54083  11 38 00.003  +48 52 52.57  21.6G 11BM170   F51  C~345Q      
2011 01  22.55192  11 37 59.934  +48 52 53.31  22.3G 11BM170   F51  C~345Q      
2011 03  12.39169  11 32 25.751  +49 24 30.60  21.5G 11BM170   F51  C~345Q      
2011 03  12.40417  11 32 25.694  +49 24 30.67  20.7G 11BM170   F51  C~345Q      
2011 03  14.34460  11 32 10.054  +49 24 55.07  21.9G 11BM170   F51  C~345Q      
2011 03  14.35710  11 32 09.964  +49 24 55.28  21.8G 11BM170   F51  C~345Q      
2013 04  27.34069  11 38 35.878  +46 12 34.54  21.8G 11BM170   F51  C~345Q      
2013 04  27.35385  11 38 35.818  +46 12 34.19  21.6G 11BM170   F51  C~345Q      
2014 05  08.26537  11 43 05.383  +44 34 21.91  21.7G 11BM170   F51  C~345Q      
2014 05  08.27826  11 43 05.342  +44 34 21.33  21.3G 11BM170   F51  C~345Q      
2014 05  08.29113  11 43 05.282  +44 34 20.59  21.3G 11BM170   F51  C~345Q      
2014 05  08.30405  11 43 05.219  +44 34 20.02  21.4G 11BM170   F51  C~345Q      
2014 05  10.26718  11 42 57.300  +44 32 45.56  21.8G 11BM170   F51  C~345Q      
2014 05  10.28049  11 42 57.263  +44 32 45.00  22.0G 11BM170   F51  C~345Q      
2014 05  10.29380  11 42 57.211  +44 32 44.21  22.0G 11BM170   F51  C~345Q      
2014 05  10.30713  11 42 57.148  +44 32 43.60  21.8G 11BM170   F51  C~345Q      
2014 06  09.33137  11 41 54.908  +44 01 52.18  21.9G 11BM170   F51  C~345Q      
2014 12  11.65112  11 59 16.280  +42 04 59.67  22.0G 11BM170   F51  C~345Q      
2014 12  25.61787  11 59 32.675  +42 15 52.87  21.5G 11BM170   F51  C~345Q      
2014 12  27.61385  11 59 32.826  +42 17 34.40  21.4G 11BM170   F51  C~345Q      
2014 12  27.62445  11 59 32.823  +42 17 35.06  21.7G 11BM170   F51  C~345Q      
2014 12  27.63502  11 59 32.823  +42 17 35.46  21.6G 11BM170   F51  C~345Q      
2014 12  27.64560  11 59 32.829  +42 17 36.09  21.6G 11BM170   F51  C~345Q      
2015 01  01.60483  11 59 30.853  +42 21 55.45  21.8G 11BM170   F51  C~345Q      
2015 01  14.57862  11 59 09.916  +42 33 42.53        11BM170   F51  C~345Q      
2015 01  14.59072  11 59 09.910  +42 33 43.49  21.8G 11BM170   F51  C~345Q      
2015 01  14.60309  11 59 09.901  +42 33 43.92  21.3G 11BM170   F51  C~345Q      
2015 01  14.61512  11 59 09.842  +42 33 44.80  21.1G 11BM170   F51  C~345Q      
2015 01  30.53678  11 58 14.680  +42 48 10.15  21.8G 11BM170   F51  C~345Q      
2015 01  30.54903  11 58 14.628  +42 48 10.83  22.0G 11BM170   F51  C~345Q      
2015 01  30.56131  11 58 14.564  +42 48 11.71  21.4G 11BM170   F51  C~345Q      
2015 01  30.57361  11 58 14.496  +42 48 12.15  21.6G 11BM170   F51  C~345Q      
2015 02  01.53856  11 58 05.644  +42 49 54.53  22.4G 11BM170   F51  C~345Q      
2015 02  01.55074  11 58 05.615  +42 49 55.17  21.4G 11BM170   F51  C~345Q      
2015 02  01.56296  11 58 05.536  +42 49 55.69  21.8G 11BM170   F51  C~345Q      
2015 02  01.57523  11 58 05.485  +42 49 56.44  21.8G 11BM170   F51  C~345Q      
2015 03  10.41521  11 54 20.017  +43 14 15.55  21.6G 11BM170   F51  C~345Q      
2015 03  10.42740  11 54 19.938  +43 14 15.88  22.1G 11BM170   F51  C~345Q      
2015 03  10.43965  11 54 19.842  +43 14 16.10  21.6G 11BM170   F51  C~345Q      
2015 03  10.45190  11 54 19.774  +43 14 16.16  21.8G 11BM170   F51  C~345Q      
2015 05  11.30964  11 47 56.176  +43 01 31.06  21.4G 11BM170   F51  C~345Q      
2015 05  11.32183  11 47 56.123  +43 01 30.54  21.3G 11BM170   F51  C~345Q      
2015 05  11.33407  11 47 56.088  +43 01 29.77  21.4G 11BM170   F51  C~345Q      
2015 05  12.35500  11 47 52.173  +43 00 41.11  21.9G 11BM170   F51  C~345Q      
2015 12  29.60460  12 03 57.503  +40 46 20.23  22.3G 11BM170   F51  C~345Q      
2015 12  29.61494  12 03 57.486  +40 46 20.80  21.7G 11BM170   F51  C~345Q      
2015 12  29.62530  12 03 57.483  +40 46 21.26  21.7G 11BM170   F51  C~345Q      
2015 12  30.66693  12 03 57.250  +40 47 13.41  22.1G 11BM170   F51  C~345Q      
2016 01  23.50722  12 03 13.344  +41 08 20.19  21.1G 11BM170   F51  C~345Q      
2016 01  23.51886  12 03 13.321  +41 08 20.82  21.9G 11BM170   F51  C~345Q      
2016 01  23.53110  12 03 13.267  +41 08 22.08  21.5G 11BM170   F51  C~345Q      
2016 01  30.56534  12 02 46.959  +41 14 33.17  21.1G 11BM170   F51  C~345Q      
2016 01  30.57677  12 02 46.880  +41 14 33.79  21.5G 11BM170   F51  C~345Q      
2016 02  21.44670  12 00 53.245  +41 31 40.36  22.2G 11BM170   F51  C~345Q      
2016 02  27.51267  12 00 15.132  +41 35 30.06  21.6G 11BM170   F51  C~345R      
2016 02  27.52473  12 00 15.088  +41 35 30.58  21.2G 11BM170   F51  C~345R      
2016 02  27.53674  12 00 14.977  +41 35 30.98  20.9G 11BM170   F51  C~345R      
2016 02  27.54843  12 00 14.890  +41 35 31.12  21.5G 11BM170   F51  C~345R      
2016 03  17.41187  11 58 06.367  +41 43 48.41  21.4G 11BM170   F51  C~345R      
2016 03  17.42292  11 58 06.316  +41 43 48.78  21.2G 11BM170   F51  C~345R      
2016 03  17.43396  11 58 06.221  +41 43 48.58  21.4G 11BM170   F51  C~345R      
2016 03  17.44502  11 58 06.124  +41 43 49.24  21.5G 11BM170   F51  C~345R      
2016 04  10.30510  11 55 23.042  +41 44 59.55  21.6G 11BM170   F51  C~345R      
2016 04  10.31672  11 55 22.972  +41 44 59.39  21.7G 11BM170   F51  C~345R      
2016 04  10.32841  11 55 22.886  +41 44 59.21  21.6G 11BM170   F51  C~345R      
2016 04  10.34001  11 55 22.818  +41 44 59.09  21.6G 11BM170   F51  C~345R      
2018 01  30.56033  12 11 06.054  +38 08 40.36  21.6G 11BM170   F51  C~345R      
2018 01  30.57186  12 11 06.020  +38 08 40.85  21.7G 11BM170   F51  C~345R      
2018 01  30.58343  12 11 05.978  +38 08 41.51  22.4G 11BM170   F51  C~345R      
2018 01  30.58565  12 11 05.966  +38 08 41.56  21.6G 11BM170   F51  C~345R      
2018 01  30.59505  12 11 05.947  +38 08 41.88  22.0G 11BM170   F51  C~345R      
2018 03  07.44180  12 07 55.367  +38 33 47.99  21.7G 11BM170   F51  C~345R      
2018 03  07.45283  12 07 55.307  +38 33 48.27  21.8G 11BM170   F51  C~345R      
2018 03  07.46392  12 07 55.223  +38 33 48.57  21.7G 11BM170   F51  C~345R      
2018 05  27.30855  12 00 38.526  +38 16 21.13  21.4G 11BM170   F51  C~345R      
2018 06  09.27720  12 00 18.123  +38 03 40.54  21.8G 11BM170   F51  C~345R      
2018 06  09.28989  12 00 18.112  +38 03 39.65  21.7G 11BM170   F51  C~345R      
2018 06  09.30255  12 00 18.092  +38 03 39.10  21.8G 11BM170   F51  C~345R      
2018 06  09.31521  12 00 18.094  +38 03 38.19  21.8G 11BM170   F51  C~345R      
2020 01  28.55596  12 18 46.712  +35 01 41.73  21.5w 11BM170   F52  C~3cgl      
2020 01  28.56784  12 18 46.670  +35 01 42.43  21.5w 11BM170   F52  C~3cgl      
2020 01  28.57976  12 18 46.646  +35 01 42.76  21.5w 11BM170   F52  C~3cgl      
2020 01  28.59173  12 18 46.622  +35 01 43.40  21.7w 11BM170   F52  C~3cgl      

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     0.04       0.00     0.02
  2   0.0000      0.00     0.31       0.00    -0.44
  3   0.0109      0.00    -0.13       0.00    -0.09
  4   0.0109      0.00     0.10       0.00    -0.04
  5   0.0109      0.00     0.06       0.00     0.13
  6   0.0109      0.00     0.06       0.00    -0.02
  7   0.8624      0.00     0.12       0.00    -0.03
  8   0.8625      0.00    -0.13       0.00     0.08
  9   0.9962      0.00    -0.83       0.00     0.06
 10   0.9962      0.00    -0.15       0.00    -0.04
 11   1.0015      0.00    -0.17       0.00     0.09
 12   1.0016      0.00     0.02       0.00     0.15
 13   3.1233      0.00    -0.04       0.00    -0.08
 14   3.1234      0.00     0.12       0.00     0.08
 15   4.1526      0.00    -0.08       0.00     0.09
 16   4.1526      0.00     0.14       0.00     0.11
 17   4.1526      0.00     0.06       0.00    -0.02
 18   4.1527      0.00    -0.06       0.00     0.02
 19   4.1581      0.00    -0.18       0.00    -0.02
 20   4.1581      0.00     0.07       0.00     0.07
 21   4.1581      0.00     0.10       0.00    -0.07
 22   4.1582      0.00    -0.04       0.00    -0.02
 23   4.2404      0.00    -0.16       0.00     0.10
 24   4.7477      0.00     0.05       0.00    -0.14
 25   4.7860      0.00     0.11       0.00     0.14
 26   4.7914      0.00    -0.06       0.00    -0.08
 27   4.7915      0.00    -0.08       0.00     0.03
 28   4.7915      0.00    -0.05       0.00    -0.12
 29   4.7915      0.00     0.07       0.00    -0.03
 30   4.8051      0.00     0.14       0.00    -0.16
 31   4.8406      0.00    -0.41       0.00    -0.23
 32   4.8407      0.00    -0.03       0.00     0.06
 33   4.8407      0.00     0.31       0.00    -0.20
 34   4.8407      0.00    -0.10       0.00     0.02
 35   4.8843      0.00     0.04       0.00    -0.07
 36   4.8844      0.00     0.09       0.00    -0.03
 37   4.8844      0.00    -0.03       0.00     0.20
 38   4.8844      0.00    -0.22       0.00    -0.00
 39   4.8898      0.00    -0.16       0.00     0.09
 40   4.8898      0.00     0.27       0.00     0.09
 41   4.8899      0.00    -0.05       0.00    -0.02
 42   4.8899      0.00     0.06       0.00     0.10
 43   4.9908      0.00    -0.09       0.00     0.19
 44   4.9908      0.00     0.05       0.00     0.23
 45   4.9908      0.00    -0.06       0.00     0.16
 46   4.9909      0.00     0.24       0.00    -0.07
 47   5.1602      0.00    -0.10       0.00    -0.14
 48   5.1603      0.00    -0.16       0.00    -0.09
 49   5.1603      0.00     0.05       0.00    -0.28
 50   5.1631      0.00     0.20       0.00    -0.27
 51   5.7962      0.00     0.26       0.00     0.05
 52   5.7962      0.00     0.05       0.00     0.10
 53   5.7963      0.00     0.04       0.00     0.04
 54   5.7991      0.00    -0.08       0.00    -0.25
 55   5.8644      0.00    -0.23       0.00     0.08
 56   5.8644      0.00     0.02       0.00     0.08
 57   5.8645      0.00    -0.15       0.00     0.68
 58   5.8837      0.00     0.43       0.00    -0.05
 59   5.8837      0.00    -0.02       0.00    -0.03
 60   5.9436      0.00     0.10       0.00    -0.11
 61   5.9602      0.00     0.15       0.00     0.10
 62   5.9603      0.00     0.68       0.00     0.20
 63   5.9603      0.00     0.20       0.00     0.18
 64   5.9603      0.00     0.04       0.00    -0.09
 65   6.0120      0.00    -0.14       0.00    -0.00
 66   6.0120      0.00     0.28       0.00     0.18
 67   6.0120      0.00     0.04       0.00    -0.20
 68   6.0121      0.00    -0.23       0.00     0.27
 69   6.0774      0.00    -0.05       0.00    -0.01
 70   6.0774      0.00     0.04       0.00    -0.04
 71   6.0775      0.00    -0.11       0.00    -0.10
 72   6.0775      0.00     0.01       0.00    -0.09
 73   7.8851      0.00    -0.25       0.00     0.10
 74   7.8851      0.00    -0.09       0.00     0.01
 75   7.8851      0.00    -0.04       0.00     0.08
 76   7.8851      0.00    -0.09       0.00     0.02
 77   7.8852      0.00     0.17       0.00    -0.13
 78   7.9833      0.00    -0.22       0.00     0.03
 79   7.9833      0.00    -0.03       0.00    -0.02
 80   7.9834      0.00    -0.21       0.00    -0.05
 81   8.2047      0.00     0.13       0.00    -0.08
 82   8.2402      0.00     0.01       0.00    -0.05
 83   8.2402      0.00     0.03       0.00    -0.13
 84   8.2403      0.00    -0.10       0.00     0.12
 85   8.2403      0.00     0.10       0.00     0.02
 86   9.8782      0.00    -0.27       0.00    -0.05
 87   9.8782      0.00    -0.31       0.00     0.07
 88   9.8783      0.00    -0.08       0.00    -0.18
 89   9.8783      0.00     0.15       0.00    -0.12

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.

11BM170    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        56.087    56.087    56.087
ecceobj         0.336     0.336     0.336
incobj         46.781    46.781    46.781
qmin           36.695    36.715    36.692
qmax           76.084    76.047    76.201
amean          55.963    55.962    55.962
amin           55.425    55.412    55.415
amax           56.660    56.657    56.712
emean           0.321     0.321     0.321
emin            0.302     0.302     0.302
emax            0.343     0.343     0.344
imean          46.790    46.790    46.790
imin           46.355    46.349    46.358
imax           47.261    47.261    47.260
excite_mean     0.796     0.796     0.796
fracstop        1.000     1.000     1.000
cjmean          2.307     2.307     2.307

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       187.5     187.5     187.5
kozaiamp         89.7      89.8      89.7