Orbit Fit and Astrometric record for 10WM75

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: 10WM75    
# Created Fri Dec  3 02:11:06 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     90 observations of     90
# Arc:  10.95y
# First observation: 2010/11/17
#  Last observation: 2021/10/30
# Chi-squared of fit:    80.25 DOF:    174 RMS:  0.17
# Min/Max residuals:    -0.47    0.54
# Exact a, adot, b, bdot, g, gdot:
  1.322092E-05  2.146280E-02 -5.584446E-06 -7.432190E-03  2.293494E-02 -2.475399E-03
# Covariance matrix:
  1.0944E-13 -3.4145E-14 -1.3419E-14  7.6971E-15 -7.3823E-15 -1.0784E-13
 -3.4145E-14  1.9553E-14  9.9476E-15 -5.8519E-15  2.4803E-14  8.0552E-14
 -1.3419E-14  9.9476E-15  7.6414E-14 -1.5719E-14  1.3579E-14  4.7808E-14
  7.6971E-15 -5.8519E-15 -1.5719E-14  4.7846E-15 -8.4599E-15 -2.8069E-14
 -7.3823E-15  2.4803E-14  1.3579E-14 -8.4599E-15  9.6277E-14  1.1192E-13
 -1.0784E-13  8.0552E-14  4.7808E-14 -2.8069E-14  1.1192E-13  3.8690E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -12.434023   74.850299    0.332648   -0.200099   -0.907589  2455518.044046
# Heliocentric elements and errors
Epoch:              2455518.5000  =  2010/11/18
Mean Anomaly:          322.93335 +/-     0.007
Argument of Peri:      263.92111 +/-     0.010
Long of Asc Node:      223.12412 +/-     0.000
Inclination:            22.56478 +/-     0.000
Eccentricity:         0.16517737 +/-    0.0000
Semi-Major Axis:     50.55945360 +/-    0.0030
Time of Perihelion: 2469038.6893 +/-      10.9
Perihelion:          42.20817612 +/-    0.0033
Aphelion:            58.91073109 +/-    0.0041
Period (y)              359.5106 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.69525878 +/-    0.0002
Ecliptic Y           41.90839942 +/-    0.0006
Ecliptic Z           -9.38835661 +/-    0.0001
Ecliptic XDOT        -0.00259876 +/-    0.0000
Ecliptic YDOT         0.00021297 +/-    0.0000
Ecliptic ZDOT        -0.00080278 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.51113630 +/-    0.0005
Geocenter to KBO     43.60171207 +/-    0.0006
# Hcoef:  6.02

The following table shows the complete astrometric record for 10WM75. 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 (10WM75) followed by the observatory code and reference code for the source of the astrometry.

2010 11  17.54328  04 59 52.794  +10 13 05.92  22.5G 10WM75    F51  C~345L      
2010 11  27.51494  04 59 07.940  +10 10 29.54  21.6G 10WM75    F51  C~345L      
2010 12  05.41898  04 58 30.956  +10 08 44.47  22.5G 10WM75    F51  C~345L      
2010 12  05.43384  04 58 30.903  +10 08 44.40  22.1G 10WM75    F51  C~345L      
2010 12  05.44846  04 58 30.815  +10 08 43.96  22.2G 10WM75    F51  C~345L      
2011 10  23.45583  05 06 35.913  +10 03 28.91  22.3G 10WM75    F51  C~345L      
2011 10  23.47070  05 06 35.858  +10 03 28.59  22.3G 10WM75    F51  C~345L      
2011 10  23.48563  05 06 35.828  +10 03 28.37  22.5G 10WM75    F51  C~345L      
2011 10  23.50052  05 06 35.800  +10 03 28.05  22.8G 10WM75    F51  C~345L      
2011 11  20.53447  05 04 50.940  +09 54 34.99  22.2G 10WM75    F51  C~345L      
2011 11  20.53589  05 04 50.952  +09 54 34.78  22.4G 10WM75    F51  C~345L      
2011 12  06.51803  05 03 37.312  +09 50 51.44  22.6G 10WM75    F51  C~345L      
2011 12  06.53298  05 03 37.243  +09 50 50.48  22.0G 10WM75    F51  C~345L      
2011 12  16.39280  05 02 50.684  +09 49 12.04  22.4G 10WM75    F51  C~345L      
2011 12  16.40629  05 02 50.642  +09 49 12.20  23.4G 10WM75    F51  C~345L      
2011 12  16.41940  05 02 50.582  +09 49 11.57  22.2G 10WM75    F51  C~345L      
2013 01  08.31935  05 06 17.428  +09 29 32.71  21.9G 10WM75    F51  C~345L      
2013 01  08.33330  05 06 17.386  +09 29 32.98  22.0G 10WM75    F51  C~345L      
2013 11  29.53068  05 14 32.111  +09 15 30.81  22.4G 10WM75    F51  C~345L      
2013 11  29.54479  05 14 32.053  +09 15 30.17  21.7G 10WM75    F51  C~345L      
2013 11  29.55889  05 14 31.965  +09 15 30.17  22.5G 10WM75    F51  C~345L      
2013 11  29.57308  05 14 31.920  +09 15 30.32  22.0G 10WM75    F51  C~345L      
2013 12  11.38416  05 13 36.214  +09 13 15.41  22.2G 10WM75    F51  C~345L      
2013 12  11.39770  05 13 36.154  +09 13 15.34  22.3G 10WM75    F51  C~345L      
2013 12  11.39836  05 13 36.153  +09 13 15.24        10WM75    F51  C~345L      
2013 12  11.41094  05 13 36.133  +09 13 14.92  22.3G 10WM75    F51  C~345L      
2013 12  11.42431  05 13 36.056  +09 13 15.08  22.2G 10WM75    F51  C~345L      
2013 12  29.40131  05 12 12.352  +09 11 23.31  21.9G 10WM75    F51  C~345L      
2013 12  29.41511  05 12 12.249  +09 11 23.37  21.8G 10WM75    F51  C~345L      
2013 12  29.42899  05 12 12.204  +09 11 23.03  22.2G 10WM75    F51  C~345L      
2013 12  29.44292  05 12 12.139  +09 11 22.73  23.0G 10WM75    F51  C~345L      
2014 03  19.27195  05 09 49.607  +09 23 27.86  22.9G 10WM75    F51  C~345L      
2014 11  26.39252  05 20 01.083  +08 57 19.14  21.9G 10WM75    F51  C~345L      
2014 11  26.40558  05 20 01.022  +08 57 19.23  22.0G 10WM75    F51  C~345L      
2014 11  26.41855  05 20 00.951  +08 57 18.97  22.1G 10WM75    F51  C~345L      
2014 11  26.43154  05 20 00.911  +08 57 18.85  22.4G 10WM75    F51  C~345L      
2015 01  17.24668  05 16 08.565  +08 52 46.34  21.6G 10WM75    F51  C~345L      
2015 01  17.25984  05 16 08.528  +08 52 46.45  21.7G 10WM75    F51  C~345L      
2015 01  17.27299  05 16 08.472  +08 52 46.35  21.9G 10WM75    F51  C~345L      
2015 01  17.28607  05 16 08.440  +08 52 46.43  22.1G 10WM75    F51  C~345L      
2015 01  17.35318  05 16 08.169  +08 52 47.16  22.6G 10WM75    F51  C~345L      
2015 01  17.36715  05 16 08.118  +08 52 47.19  22.5G 10WM75    F51  C~345L      
2015 01  17.38097  05 16 08.056  +08 52 47.10  22.4G 10WM75    F51  C~345L      
2015 01  17.39481  05 16 08.010  +08 52 47.08  22.5G 10WM75    F51  C~345M      
2015 10  19.50767  05 27 29.581  +08 50 03.95  21.9G 10WM75    F51  C~345M      
2015 10  23.55963  05 27 19.873  +08 48 33.38  22.3G 10WM75    F51  C~345M      
2015 12  03.45996  05 24 43.835  +08 36 28.23  21.5G 10WM75    F51  C~345M      
2015 12  05.40706  05 24 34.721  +08 36 05.57  22.2G 10WM75    F51  C~345M      
2015 12  05.41947  05 24 34.661  +08 36 05.36  21.9G 10WM75    F51  C~345M      
2015 12  05.43189  05 24 34.592  +08 36 05.26  21.9G 10WM75    F51  C~345M      
2015 12  05.44441  05 24 34.535  +08 36 04.98  21.9G 10WM75    F51  C~345M      
2016 01  11.40489  05 21 44.863  +08 33 18.06  21.9G 10WM75    F51  C~345M      
2016 01  11.41675  05 21 44.812  +08 33 18.24  22.3G 10WM75    F51  C~345M      
2016 01  11.42861  05 21 44.764  +08 33 17.91  22.6G 10WM75    F51  C~345M      
2016 01  11.44041  05 21 44.721  +08 33 18.34  22.8G 10WM75    F51  C~345M      
2016 01  13.38175  05 21 36.925  +08 33 23.71  22.7G 10WM75    F51  C~345M      
2016 01  13.39459  05 21 36.871  +08 33 23.42  22.0G 10WM75    F51  C~345M      
2016 01  13.40733  05 21 36.826  +08 33 23.61  22.1G 10WM75    F51  C~345M      
2016 01  13.42006  05 21 36.766  +08 33 23.49  23.2G 10WM75    F51  C~345M      
2016 10  13.59078  05 32 51.706  +08 32 25.12  22.9G 10WM75    F51  C~345M      
2016 10  13.60295  05 32 51.683  +08 32 24.75  22.4G 10WM75    F51  C~345M      
2016 10  13.61508  05 32 51.679  +08 32 24.28  21.6G 10WM75    F51  C~345M      
2016 10  13.62723  05 32 51.638  +08 32 24.07  22.7G 10WM75    F51  C~345M      
2016 11  28.53473  05 30 17.848  +08 17 36.75  22.5G 10WM75    F51  C~345M      
2016 11  28.54740  05 30 17.785  +08 17 36.25  21.8G 10WM75    F51  C~345M      
2016 11  28.57286  05 30 17.669  +08 17 36.37  21.8G 10WM75    F51  C~345M      
2017 01  03.35380  05 27 29.863  +08 13 34.58  22.4G 10WM75    F51  C~345M      
2017 01  03.36654  05 27 29.810  +08 13 34.72  22.7G 10WM75    F51  C~345M      
2017 01  03.37932  05 27 29.755  +08 13 34.40  22.6G 10WM75    F51  C~345M      
2017 01  03.39215  05 27 29.693  +08 13 34.48  22.2G 10WM75    F51  C~345M      
2017 01  20.42114  05 26 20.730  +08 14 29.54  22.3G 10WM75    F51  C~345M      
2017 01  28.28357  05 25 54.522  +08 15 29.06  22.0G 10WM75    F51  C~345M      
2017 01  28.29628  05 25 54.471  +08 15 29.46  21.9G 10WM75    F51  C~345M      
2017 01  28.30900  05 25 54.444  +08 15 29.56  22.3G 10WM75    F51  C~345M      
2017 01  28.32170  05 25 54.396  +08 15 29.54  22.0G 10WM75    F51  C~345M      
2017 02  14.31158  05 25 13.776  +08 18 42.35  21.7G 10WM75    F51  C~345M      
2017 02  14.33624  05 25 13.704  +08 18 42.50  22.2G 10WM75    F51  C~345M      
2017 02  14.34853  05 25 13.696  +08 18 42.80  22.3G 10WM75    F51  C~345M      
2017 11  24.50690  05 35 52.117  +07 58 30.85  22.2G 10WM75    F51  C~345M      
2017 11  24.52000  05 35 52.068  +07 58 30.35  22.3G 10WM75    F51  C~345M      
2017 11  24.53311  05 35 51.997  +07 58 30.19  23.1G 10WM75    F51  C~345M      
2017 11  24.54622  05 35 51.925  +07 58 30.05  22.6G 10WM75    F51  C~345M      
2018 01  03.48765  05 32 45.160  +07 53 36.80  22.8G 10WM75    F51  C~345M      
2018 01  10.32568  05 32 15.357  +07 53 48.31  22.3G 10WM75    F51  C~345M      
2018 01  10.33833  05 32 15.303  +07 53 48.18  22.3G 10WM75    F51  C~345M      
2018 01  10.35101  05 32 15.238  +07 53 48.27  22.5G 10WM75    F51  C~345M      
2018 01  10.36373  05 32 15.209  +07 53 48.15  22.6G 10WM75    F51  C~345M      
2021 10  30.565909 05 58 26.453  +06 42 54.72  22.2w 10WM75    F51  C~5BKL      
2021 10  30.583073 05 58 26.416  +06 42 54.54  22.1w 10WM75    F51  C~5BKL      
2021 10  30.604497 05 58 26.347  +06 42 54.05  22.1w 10WM75    F51  C~5BKL      

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     0.32       0.00     0.13
     2   0.0273      0.00    -0.02       0.00     0.11
     3   0.0489      0.00    -0.16       0.00     0.03
     4   0.0490      0.00     0.12       0.00     0.14
     5   0.0490      0.00    -0.15       0.00    -0.13
     6   0.9306      0.00    -0.02       0.00    -0.02
     7   0.9307      0.00    -0.19       0.00    -0.03
     8   0.9307      0.00     0.02       0.00     0.07
     9   0.9308      0.00     0.26       0.00     0.06
    10   1.0075      0.00    -0.12       0.00     0.34
    11   1.0075      0.00     0.16       0.00     0.15
    12   1.0513      0.00    -0.07       0.00     0.31
    13   1.0513      0.00    -0.03       0.00    -0.47
    14   1.0783      0.00    -0.34       0.00     0.20
    15   1.0783      0.00    -0.00       0.00     0.47
    16   1.0784      0.00     0.04       0.00    -0.04
    17   2.1431      0.00    -0.08       0.00    -0.23
    18   2.1432      0.00     0.14       0.00     0.03
    19   3.0335      0.00    -0.00       0.00     0.03
    20   3.0335      0.00     0.12       0.00    -0.42
    21   3.0336      0.00    -0.20       0.00    -0.23
    22   3.0336      0.00     0.12       0.00     0.11
    23   3.0660      0.00    -0.19       0.00    -0.17
    24   3.0660      0.00    -0.11       0.00    -0.11
    25   3.0660      0.00    -0.07       0.00    -0.20
    26   3.0660      0.00     0.54       0.00    -0.41
    27   3.0661      0.00     0.35       0.00    -0.12
    28   3.1153      0.00     0.43       0.00     0.34
    29   3.1153      0.00    -0.17       0.00     0.45
    30   3.1154      0.00     0.10       0.00     0.15
    31   3.1154      0.00     0.07       0.00    -0.11
    32   3.3340      0.00    -0.18       0.00     0.13
    33   4.0242      0.00    -0.17       0.00    -0.20
    34   4.0243      0.00    -0.18       0.00     0.08
    35   4.0243      0.00    -0.35       0.00     0.00
    36   4.0243      0.00    -0.05       0.00     0.07
    37   4.1662      0.00    -0.08       0.00    -0.19
    38   4.1662      0.00     0.10       0.00    -0.13
    39   4.1663      0.00    -0.01       0.00    -0.29
    40   4.1663      0.00     0.25       0.00    -0.26
    41   4.1665      0.00    -0.06       0.00     0.19
    42   4.1665      0.00    -0.04       0.00     0.16
    43   4.1666      0.00    -0.20       0.00     0.02
    44   4.1666      0.00    -0.12       0.00    -0.06
    45   4.9198      0.00    -0.21       0.00     0.00
    46   4.9309      0.00    -0.02       0.00     0.04
    47   5.0429      0.00    -0.18       0.00     0.04
    48   5.0482      0.00     0.07       0.00     0.04
    49   5.0483      0.00     0.06       0.00    -0.03
    50   5.0483      0.00    -0.08       0.00     0.01
    51   5.0483      0.00    -0.03       0.00    -0.13
    52   5.1495      0.00     0.05       0.00    -0.10
    53   5.1496      0.00     0.02       0.00     0.05
    54   5.1496      0.00     0.04       0.00    -0.30
    55   5.1496      0.00     0.12       0.00     0.10
    56   5.1549      0.00     0.01       0.00     0.14
    57   5.1550      0.00    -0.02       0.00    -0.18
    58   5.1550      0.00     0.07       0.00    -0.03
    59   5.1550      0.00    -0.06       0.00    -0.19
    60   5.9057      0.00    -0.04       0.00     0.20
    61   5.9057      0.00    -0.06       0.00     0.11
    62   5.9057      0.00     0.20       0.00    -0.07
    63   5.9058      0.00    -0.09       0.00     0.00
    64   6.0315      0.00     0.06       0.00     0.10
    65   6.0315      0.00    -0.00       0.00    -0.23
    66   6.0316      0.00     0.03       0.00     0.23
    67   6.1295      0.00    -0.05       0.00    -0.00
    68   6.1296      0.00     0.02       0.00     0.13
    69   6.1296      0.00     0.06       0.00    -0.19
    70   6.1296      0.00    -0.01       0.00    -0.11
    71   6.1763      0.00    -0.01       0.00    -0.02
    72   6.1978      0.00     0.02       0.00    -0.23
    73   6.1978      0.00    -0.15       0.00     0.06
    74   6.1979      0.00     0.05       0.00     0.04
    75   6.1979      0.00    -0.07       0.00    -0.09
    76   6.2444      0.00     0.34       0.00     0.14
    77   6.2445      0.00    -0.09       0.00    -0.04
    78   6.2445      0.00     0.11       0.00     0.09
    79   7.0197      0.00     0.03       0.00     0.21
    80   7.0198      0.00     0.17       0.00    -0.09
    81   7.0198      0.00    -0.02       0.00    -0.06
    82   7.0199      0.00    -0.22       0.00    -0.01
    83   7.1292      0.00    -0.15       0.00     0.11
    84   7.1479      0.00    -0.02       0.00     0.11
    85   7.1480      0.00    -0.02       0.00    -0.06
    86   7.1480      0.00    -0.18       0.00    -0.01
    87   7.1480      0.00     0.21       0.00    -0.17
    88  10.9515      0.00     0.04       0.00     0.04
    89  10.9515      0.00     0.18       0.00     0.25
    90  10.9516      0.00     0.00       0.00     0.24

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.

10WM75    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        50.845    50.845    50.845
ecceobj         0.168     0.168     0.168
incobj         22.524    22.524    22.524
qmin           41.507    41.484    41.470
qmax           59.937    59.946    59.888
amean          50.501    50.501    50.501
amin           50.063    50.043    50.071
amax           51.004    50.996    50.983
emean           0.162     0.162     0.162
emin            0.150     0.150     0.150
emax            0.175     0.176     0.176
imean          23.460    23.460    23.460
imin           23.241    23.241    23.241
imax           23.754    23.754    23.754
excite_mean     0.430     0.430     0.430
fracstop        1.000     1.000     1.000
cjmean          2.941     2.941     2.941

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       176.8     176.8     176.8
kozaiamp        180.0     180.0     179.9