Orbit Fit and Astrometric record for 01FK185

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: 01FK185   
# Created Fri Nov 16 02:07:49 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   57 observations of   57
# Arc:  15.92y
# First observation: 2001/03/25
#  Last observation: 2017/02/23
# Chi-squared of fit:    66.24 DOF:  108 RMS:  0.19
# Min/Max residuals:    -0.53    0.75
# Exact a, adot, b, bdot, g, gdot:
  1.658418E-05  2.428605E-02  1.528213E-06 -3.964985E-04  2.453377E-02 -3.028870E-04
# Covariance matrix:
  1.5735E-13 -2.9998E-14 -6.0224E-16  3.5025E-16  3.3951E-14 -5.3957E-14
 -2.9998E-14  2.0972E-14  6.0112E-16 -3.4220E-16  2.7754E-14  5.3634E-14
 -6.0224E-16  6.0112E-16  9.8291E-14 -7.7629E-15  9.4270E-16  1.6092E-15
  3.5025E-16 -3.4220E-16 -7.7629E-15  8.2652E-16 -5.2277E-16 -9.1496E-16
  3.3951E-14  2.7754E-14  9.4270E-16 -5.2277E-16  1.5907E-13  8.3694E-14
 -5.3957E-14  5.3634E-14  1.6092E-15 -9.1496E-16  8.3694E-14  1.4355E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.727056 -160.227353    0.255101    0.012125   -0.968707  2451993.849293
# Heliocentric elements and errors
Epoch:              2451994.5000  =  2001/03/26
Mean Anomaly:          334.06738 +/-     0.031
Argument of Peri:      170.44819 +/-     0.033
Long of Asc Node:       56.76203 +/-     0.001
Inclination:             1.17099 +/-     0.000
Eccentricity:         0.03568628 +/-    0.0000
Semi-Major Axis:     43.09621019 +/-    0.0027
Time of Perihelion: 2459438.4082 +/-      12.6
Perihelion:          41.55826667 +/-    0.0032
Aphelion:            44.63415371 +/-    0.0034
Period (y)              282.9221 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.34772303 +/-    0.0006
Ecliptic Y          -13.87068144 +/-    0.0002
Ecliptic Z            0.51730335 +/-    0.0000
Ecliptic XDOT         0.00093977 +/-    0.0000
Ecliptic YDOT        -0.00253629 +/-    0.0000
Ecliptic ZDOT        -0.00004448 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.72418446 +/-    0.0006
Geocenter to KBO     40.76017951 +/-    0.0007
# Hcoef:  7.36

The following table shows the complete astrometric record for 01FK185. 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 (01FK185) followed by the observatory code and reference code for the source of the astrometry.

2001 03  25.34855  13 14 07.27   -07 03 36.4   25.0R 01FK185   695  Cd1722      
2001 03  25.47594  13 14 06.69   -07 03 32.8         01FK185   695  Cd1722      
2001 04  25.21181  13 11 48.57   -06 49 40.3   23.2R 01FK185   688  Cd1722      
2001 04  25.30432  13 11 48.14   -06 49 38.1         01FK185   688  Cd1722      
2001 05  22.96925  13 10 02.80   -06 39 17.1   23.0R 01FK185   807  Cd1722      
2001 05  23.06472  13 10 02.49   -06 39 15.3         01FK185   807  Cd1722      
2001 06  08.99605  13 09 20.23   -06 35 15.8         01FK185   304  Cd1722      
2001 06  09.04513  13 09 20.14   -06 35 15.5         01FK185   304  Cd1722      
2002 04  07.14140  13 18 20.88   -07 30 36.0   22.2R 01FK185   807  Cf4616      
2002 04  07.20167  13 18 20.61   -07 30 34.5         01FK185   807  Cf4616      
2002 04  08.17780  13 18 16.15   -07 30 07.8         01FK185   807  Cf4616      
2003 05  01.33761  13 21 44.23   -07 52 33.4   23.2R 01FK185   568  Ch9859      
2003 05  01.45486  13 21 43.74   -07 52 30.3         01FK185   568  Ch9859      
2004 04  26.32494  13 27 15.13   -08 26 45.3   23.5g 01FK185   568  C~0VDO      
2004 04  26.34619  13 27 15.04   -08 26 44.9   23.6g 01FK185   568  C~0VDO      
2004 04  26.37253  13 27 14.91   -08 26 44.3   23.5g 01FK185   568  C~0VDO      
2005 05  04.34109  13 31 54.73   -08 55 42.2   23.2r 01FK185   568  C~0VDO      
2005 05  04.36902  13 31 54.62   -08 55 41.7   23.8r 01FK185   568  C~0VDP      
2005 05  04.41658  13 31 54.38   -08 55 40.5   23.8r 01FK185   568  C~0VDP      
2005 05  05.38616  13 31 50.26   -08 55 17.0   23.8r 01FK185   568  C~0VDP      
2006 04  27.11801  13 37 42.61   -09 30 46.6   21.9R 01FK185   807  Cr3558      
2006 04  27.18995  13 37 42.29   -09 30 44.7         01FK185   807  Cr3558      
2006 04  28.07173  13 37 38.30   -09 30 22.1         01FK185   807  Cr3558      
2013 04  04.44170  14 16 40.760  -13 13 56.16  22.9r 01FK185   568  C~1XPk      
2013 04  04.48219  14 16 40.589  -13 13 55.29  23.3r 01FK185   568  C~1XPk      
2013 04  04.52263  14 16 40.409  -13 13 54.28        01FK185   568  C~1XPk      
2013 04  06.61498  14 16 31.286  -13 13 08.17  23.6r 01FK185   568  C~1XPk      
2013 04  08.41579  14 16 23.337  -13 12 27.54  23.2r 01FK185   568  C~1XPk      
2013 05  11.45033  14 13 49.748  -12 59 29.89  23.6r 01FK185   568  C~1XPk      
2013 05  12.44830  14 13 45.248  -12 59 07.23  23.4r 01FK185   568  C~1XPk      
2013 07  04.30754  14 10 59.598  -12 45 28.08  23.7r 01FK185   568  C~1XPk      
2013 07  06.31531  14 10 57.284  -12 45 17.91  23.5r 01FK185   568  C~1XPk      
2014 02  01.64281  14 24 20.776  -13 54 20.12  23.2r 01FK185   568  C~1XPk      
2014 02  02.64065  14 24 21.243  -13 54 21.81  23.5r 01FK185   568  C~1XPk      
2014 02  03.58522  14 24 21.607  -13 54 23.46  23.5r 01FK185   568  C~1XPk      
2014 02  24.58951  14 24 07.415  -13 53 06.24        01FK185   568  C~1XPk      
2014 02  25.57248  14 24 05.760  -13 52 57.78  23.2r 01FK185   568  C~1XPk      
2014 02  28.52057  14 24 00.263  -13 52 29.72  23.3r 01FK185   568  C~1XPk      
2014 04  04.42334  14 22 06.291  -13 42 58.51  23.3r 01FK185   568  C~1XPk      
2014 04  04.46261  14 22 06.124  -13 42 57.71  23.2r 01FK185   568  C~1XPk      
2014 04  05.48108  14 22 01.759  -13 42 35.84  23.6r 01FK185   568  C~1XPk      
2014 04  05.53642  14 22 01.501  -13 42 34.77  23.0r 01FK185   568  C~1XPk      
2014 05  22.45377  14 18 26.382  -13 24 47.89  23.3r 01FK185   568  C~1XPk      
2014 05  25.44602  14 18 13.890  -13 23 46.39  23.4r 01FK185   568  C~1XPk      
2015 01  26.64290  14 29 34.582  -14 21 38.30  23.8r 01FK185   568  C~1XPk      
2015 04  25.27747  14 25 58.75   -14 03 54.7         01FK185   W84  C~2fbj      
2015 04  26.27329  14 25 54.03   -14 03 31.4   23.2V 01FK185   W84  C~2fbj      
2015 04  26.34307  14 25 53.69   -14 03 30.2         01FK185   W84  C~2fbj      
2016 02  14.57372  14 35 04.425  -14 49 33.75  23.3r 01FK185   568  C~2KO1      
2016 02  14.57878  14 35 04.444  -14 49 33.66  26.1u 01FK185   568  C~2KO1      
2016 02  14.62156  14 35 04.399  -14 49 33.36  25.4u 01FK185   568  C~2KO1      
2016 02  14.62583  14 35 04.417  -14 49 33.50  24.7u 01FK185   568  C~2KO1      
2016 02  14.63445  14 35 04.384  -14 49 33.41  25.1u 01FK185   568  C~2KO1      
2016 02  14.63952  14 35 04.388  -14 49 33.39  23.3r 01FK185   568  C~2KO1      
2016 05  06.34492  14 30 30.758  -14 27 45.94  23.0r 01FK185   568  C~2KO1      
2016 05  06.41084  14 30 30.431  -14 27 44.49  23.3r 01FK185   568  C~2KO1      
2017 02  23.64639  14 40 21.667  -15 15 58.75        01FK185   568  C~2KO1      

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    -0.27
  2   0.0003      0.00    -0.53       0.00    -0.06
  3   0.0845      0.00     0.17       0.00    -0.01
  4   0.0848      0.00    -0.13       0.00    -0.21
  5   0.1605      0.00    -0.07       0.00     0.07
  6   0.1608      0.00    -0.19       0.00     0.17
  7   0.2071      0.00     0.67       0.00     0.08
  8   0.2072      0.00     0.75       0.00    -0.12
  9   1.0343      0.00    -0.18       0.00     0.15
 10   1.0345      0.00    -0.04       0.00     0.01
 11   1.0372      0.00    -0.17       0.00     0.10
 12   2.0999      0.00    -0.26       0.00     0.02
 13   2.1002      0.00     0.09       0.00     0.18
 14   3.0882      0.00    -0.23       0.00     0.32
 15   3.0883      0.00    -0.14       0.00     0.18
 16   3.0884      0.00    -0.30       0.00     0.10
 17   4.1095      0.00     0.07       0.00    -0.10
 18   4.1096      0.00     0.25       0.00    -0.28
 19   4.1097      0.00    -0.22       0.00    -0.24
 20   4.1124      0.00     0.16       0.00    -0.37
 21   5.0890      0.00     0.30       0.00     0.06
 22   5.0892      0.00     0.47       0.00     0.12
 23   5.0916      0.00     0.25       0.00     0.19
 24  12.0276      0.00    -0.17       0.00    -0.06
 25  12.0277      0.00    -0.06       0.00    -0.07
 26  12.0279      0.00    -0.08       0.00     0.05
 27  12.0336      0.00    -0.01       0.00    -0.23
 28  12.0385      0.00     0.08       0.00    -0.09
 29  12.1290      0.00    -0.19       0.00     0.04
 30  12.1317      0.00    -0.05       0.00    -0.03
 31  12.2764      0.00    -0.22       0.00     0.12
 32  12.2819      0.00    -0.13       0.00     0.01
 33  12.8578      0.00    -0.02       0.00    -0.25
 34  12.8605      0.00    -0.08       0.00     0.04
 35  12.8631      0.00    -0.02       0.00    -0.19
 36  12.9206      0.00    -0.06       0.00    -0.05
 37  12.9233      0.00     0.08       0.00    -0.11
 38  12.9313      0.00     0.15       0.00    -0.12
 39  13.0269      0.00     0.02       0.00     0.06
 40  13.0270      0.00     0.08       0.00     0.03
 41  13.0298      0.00     0.20       0.00     0.13
 42  13.0299      0.00    -0.02       0.00     0.01
 43  13.1584      0.00    -0.02       0.00     0.01
 44  13.1666      0.00    -0.05       0.00    -0.00
 45  13.8406      0.00     0.00       0.00     0.02
 46  14.0833      0.00    -0.08       0.00     0.05
 47  14.0860      0.00     0.04       0.00     0.37
 48  14.0862      0.00    -0.02       0.00    -0.06
 49  14.8918      0.00     0.06       0.00    -0.10
 50  14.8918      0.00     0.38       0.00    -0.02
 51  14.8919      0.00     0.03       0.00     0.19
 52  14.8919      0.00     0.34       0.00     0.04
 53  14.8920      0.00    -0.09       0.00     0.11
 54  14.8920      0.00     0.01       0.00     0.12
 55  15.1157      0.00    -0.13       0.00     0.02
 56  15.1158      0.00    -0.25       0.00    -0.02
 57  15.9187      0.00    -0.11       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.

01FK185    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.985    42.985    42.985
ecceobj         0.034     0.034     0.034
incobj          1.173     1.173     1.173
qmin           41.005    41.005    41.006
qmax           45.803    45.802    45.799
amean          43.297    43.297    43.297
amin           42.958    42.956    42.961
amax           43.639    43.637    43.641
emean           0.031     0.031     0.031
emin            0.013     0.013     0.013
emax            0.050     0.050     0.050
imean           1.175     1.175     1.175
imin            0.176     0.176     0.176
imax            1.830     1.830     1.831
excite_mean     0.038     0.038     0.038
fracstop        1.000     1.000     1.000
cjmean          3.091     3.091     3.091

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       160.7     160.8     160.8
kozaiamp        179.9     180.0     179.8