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 Sat Oct 21 01:37:10 2017
# Orbit generated from Bernstein formalism
# Fitting   52 observations of   54
# Arc:  15.92y
# First observation: 2001/03/25
#  Last observation: 2017/02/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.001107   0.025209   0.000033  -0.000411   0.026251   0.000000
# Chi-squared of fit:    43.21 DOF:   98 RMS:  0.16
# Min/Max residuals:    -0.37    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.611007E-05  2.428627E-02  1.389273E-06 -3.964957E-04  2.453447E-02 -3.019918E-04
# Covariance matrix:
  1.5865E-13 -2.9471E-14 -5.7550E-16  3.3571E-16  3.7759E-14 -5.1724E-14
 -2.9471E-14  2.1186E-14  6.0635E-16 -3.4615E-16  2.9300E-14  5.4540E-14
 -5.7550E-16  6.0635E-16  9.8596E-14 -7.8694E-15  1.0024E-15  1.6385E-15
  3.3571E-16 -3.4615E-16 -7.8694E-15  8.6369E-16 -5.5891E-16 -9.3415E-16
  3.7759E-14  2.9300E-14  1.0024E-15 -5.5891E-16  1.7024E-13  9.0238E-14
 -5.1724E-14  5.4540E-14  1.6385E-15 -9.3415E-16  9.0238E-14  1.4738E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.727056 -160.227353    0.255101    0.012125   -0.968707  2451993.849293
# Heliocentric elements and errors
Epoch:              2451990.5000  =  2001/03/22
Mean Anomaly:          334.05337 +/-     0.031
Argument of Peri:      170.44386 +/-     0.033
Long of Asc Node:       56.76215 +/-     0.002
Inclination:             1.17098 +/-     0.000
Eccentricity:         0.03560819 +/-    0.0000
Semi-Major Axis:     43.09194249 +/-    0.0028
Time of Perihelion: 2459437.3234 +/-       8.9
Perihelion:          41.55751641 +/-    0.0033
Aphelion:            44.62636857 +/-    0.0035
Period (y)              282.8800 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.34664359 +/-    0.0006
Ecliptic Y          -13.87027284 +/-    0.0002
Ecliptic Z            0.51728304 +/-    0.0000
Ecliptic XDOT         0.00093966 +/-    0.0000
Ecliptic YDOT        -0.00253627 +/-    0.0000
Ecliptic ZDOT        -0.00004448 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.72302017 +/-    0.0006
Geocenter to KBO     40.75898937 +/-    0.0007
# Hcoef:  7.37

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      
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    -0.09       0.00    -0.34
  2   0.0003     -9.35    -0.37       0.08    -0.23
  3   0.0845  -2228.14     0.32      -6.00     0.08
  4   0.0848  -2234.90     0.12      -6.39    -0.22
  5   0.1605  -3922.76     0.13     -25.95     0.06
  6   0.1608  -3927.72    -0.02     -26.04     0.11
  7   0.2071  -4601.47 (   0.82)    -43.29 (   0.36)
  8   0.2072  -4602.83 (   0.98)    -43.52 (   0.20)
  9   1.0343   4106.06    -0.15     -81.45     0.10
 10   1.0345   4101.77     0.03     -81.57     0.02
 11   1.0372   4030.24    -0.12     -81.69     0.05
 12   2.0999   7404.84    -0.17    -172.41    -0.05
 13   2.1002   7396.91     0.09    -172.25     0.23
 14   3.0882  12741.71    -0.31    -251.77     0.24
 15   3.0883  12740.32    -0.17    -251.89     0.14
 16   3.0884  12738.30    -0.28    -252.05     0.01
 17   4.1095  17259.84     0.11    -338.67    -0.04
 18   4.1096  17258.13     0.35    -338.80    -0.14
 19   4.1097  17254.35    -0.10    -338.99    -0.28
 20   4.1124  17188.48     0.30    -339.55    -0.26
 21   5.0890  22876.36     0.22    -416.96     0.19
 22   5.0892  22871.20     0.36    -416.91     0.31
 23   5.0916  22807.22     0.13    -417.30     0.30
 24  12.0276  61392.44    -0.20   -1010.16    -0.10
 25  12.0277  61389.56    -0.08   -1010.16    -0.08
 26  12.0279  61386.50    -0.15   -1010.08     0.03
 27  12.0336  61233.07     0.03   -1010.73    -0.22
 28  12.0385  61099.27     0.08   -1010.87    -0.05
 29  12.1290  58524.78    -0.18   -1024.56    -0.01
 30  12.1317  58449.62    -0.01   -1025.18    -0.04
 31  12.2764  55697.12    -0.16   -1066.81     0.05
 32  12.2819  55659.25    -0.04   -1068.69    -0.02
 33  12.8578  69239.85    -0.01   -1108.45    -0.24
 34  12.8605  69247.62    -0.18   -1107.82     0.02
 35  12.8631  69253.79    -0.04   -1107.65    -0.19
 36  12.9206  69008.48    -0.12   -1101.17    -0.06
 37  12.9233  68980.08     0.04   -1100.96    -0.08
 38  12.9313  68885.79     0.12   -1100.31    -0.06
 39  13.0269  66939.64    -0.02   -1099.57     0.08
 40  13.0270  66936.81     0.05   -1099.61     0.07
 41  13.0298  66862.47     0.14   -1099.67     0.21
 42  13.0299  66858.16    -0.04   -1099.89     0.01
 43  13.1584  63215.48     0.05   -1120.79     0.01
 44  13.1666  63005.11     0.02   -1122.88    -0.01
 45  13.8406  74679.29    -0.06   -1199.94     0.02
 46  14.8918  80469.20     0.09   -1285.59    -0.07
 47  14.8918  80469.46     0.40   -1285.40     0.11
 48  14.8919  80468.64    -0.04   -1285.31     0.21
 49  14.8919  80468.98     0.33   -1285.37     0.16
 50  14.8920  80468.42    -0.15   -1285.44     0.09
 51  14.8920  80468.48    -0.05   -1285.40     0.13
 52  15.1157  75688.49    -0.02   -1295.01    -0.02
 53  15.1158  75682.86    -0.15   -1295.15    -0.09
 54  15.9187  86122.66    -0.03   -1377.31    -0.15

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        42.982    42.991    42.974
ecceobj         0.034     0.034     0.034
incobj          1.173     1.173     1.173
qmin           40.984    40.993    40.972
qmax           45.843    45.790    45.807
amean          43.294    43.303    43.287
amin           42.963    42.966    42.956
amax           43.644    43.648    43.635
emean           0.031     0.031     0.031
emin            0.013     0.014     0.013
emax            0.050     0.050     0.050
imean           1.176     1.174     1.178
imin            0.175     0.177     0.171
imax            1.831     1.829     1.833
excite_mean     0.038     0.039     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       160.6     160.6     160.8
kozaiamp        179.9     180.0     180.0