Orbit Fit and Astrometric record for 14KW101

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: 14KW101   
# Created Mon Dec 11 02:38:06 2017
# Orbit generated from Bernstein formalism
# Fitting   31 observations of   31
# Arc:   3.82y
# First observation: 2011/09/18
#  Last observation: 2015/07/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000221   0.027824  -0.000000  -0.001357   0.026862   0.000000
# Chi-squared of fit:     8.22 DOF:   56 RMS:  0.09
# Min/Max residuals:    -0.21    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.683228E-05  2.763383E-02 -4.969924E-07 -1.351065E-03  2.647951E-02  9.789939E-04
# Covariance matrix:
  4.8210E-13 -2.8399E-13  3.1813E-16  6.6540E-15 -1.3347E-13 -1.4713E-12
 -2.8399E-13  3.0764E-13  1.2913E-15 -7.2920E-15  9.8971E-14  2.0477E-12
  3.1813E-16  1.2913E-15  3.4059E-13 -1.0425E-13 -3.1057E-15  3.8819E-15
  6.6540E-15 -7.2920E-15 -1.0425E-13  3.7378E-14 -8.1819E-15 -6.4259E-14
 -1.3347E-13  9.8971E-14 -3.1057E-15 -8.1819E-15  2.4241E-13  1.0884E-12
 -1.4713E-12  2.0477E-12  3.8819E-15 -6.4259E-14  1.0884E-12  1.6054E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   19.341568  -61.275936   -0.830629    0.185231   -0.527813  2455822.757656
# Heliocentric elements and errors
Epoch:              2455820.5000  =  2011/09/16
Mean Anomaly:           39.41476 +/-     0.063
Argument of Peri:       53.27503 +/-     0.080
Long of Asc Node:      200.38398 +/-     0.001
Inclination:            19.31320 +/-     0.000
Eccentricity:         0.08158094 +/-    0.0001
Semi-Major Axis:     40.75109413 +/-    0.0032
Time of Perihelion: 2445417.3771 +/-      16.6
Perihelion:          37.42658160 +/-    0.0056
Aphelion:            44.07560667 +/-    0.0059
Period (y)              260.1460 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           18.12667603 +/-    0.0003
Ecliptic Y          -31.33894802 +/-    0.0006
Ecliptic Z           12.50775923 +/-    0.0002
Ecliptic XDOT         0.00257042 +/-    0.0000
Ecliptic YDOT         0.00125411 +/-    0.0000
Ecliptic ZDOT        -0.00009822 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.30339525 +/-    0.0005
Geocenter to KBO     37.76505374 +/-    0.0007
# Hcoef:  5.93

The following table shows the complete astrometric record for 14KW101. 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 (14KW101) followed by the observatory code and reference code for the source of the astrometry.

2011 09  18.25689  19 47 54.168  -01 26 53.22  22.1g 14KW101   F51  C~1vXW      
2011 09  18.33178  19 47 54.020  -01 26 55.68  21.8r 14KW101   F51  C~1vXW      
2011 09  18.34203  19 47 53.999  -01 26 55.95  21.8r 14KW101   F51  C~1vXW      
2013 07  09.45975  20 05 22.599  -00 30 37.14  21.8w 14KW101   F51  C~1vXW      
2013 07  09.47480  20 05 22.533  -00 30 37.51  21.9w 14KW101   F51  C~1vXW      
2013 07  09.48987  20 05 22.450  -00 30 37.52  22.1w 14KW101   F51  C~1vXW      
2013 07  09.50496  20 05 22.376  -00 30 37.39  21.8w 14KW101   F51  C~1vXX      
2014 05  31.53741  20 14 13.473  -00 18 52.42  21.9w 14KW101   F51  C~1vXX      
2014 05  31.55048  20 14 13.435  -00 18 52.21  21.8w 14KW101   F51  C~1vXX      
2014 05  31.56352  20 14 13.401  -00 18 52.21  21.8w 14KW101   F51  C~1vXX      
2014 05  31.57658  20 14 13.351  -00 18 52.01  21.9w 14KW101   F51  C~1vXX      
2014 08  18.35885  20 08 25.143  -00 29 39.85  21.7w 14KW101   F51  C~1vXX      
2014 08  18.37055  20 08 25.085  -00 29 40.08  21.6w 14KW101   F51  C~1vXX      
2014 08  18.38226  20 08 25.033  -00 29 40.48  21.8w 14KW101   F51  C~1vXX      
2014 08  18.39397  20 08 24.989  -00 29 40.67  21.7w 14KW101   F51  C~1vXX      
2014 09  24.23030  20 06 24.724  -00 49 24.33  22.1w 14KW101   F51  C~1vXX      
2014 09  24.24463  20 06 24.701  -00 49 24.92  22.1w 14KW101   F51  C~1vXX      
2014 09  24.25879  20 06 24.682  -00 49 25.45  22.1w 14KW101   F51  C~1vXX      
2014 09  24.27299  20 06 24.649  -00 49 25.85  22.1w 14KW101   F51  C~1vXX      
2015 06  19.51274  20 19 23.431  -00 02 20.35  21.8w 14KW101   F51  C~1vXX      
2015 06  19.52575  20 19 23.383  -00 02 20.37  21.9w 14KW101   F51  C~1vXX      
2015 06  19.53876  20 19 23.337  -00 02 20.20  21.9w 14KW101   F51  C~1vXX      
2015 06  19.55178  20 19 23.279  -00 02 20.14  22.0w 14KW101   F51  C~1vXX      
2015 06  27.52035  20 18 50.492  -00 02 09.58  22.0w 14KW101   F51  C~1vXX      
2015 06  27.53282  20 18 50.433  -00 02 09.59  22.2w 14KW101   F51  C~1vXX      
2015 06  27.54528  20 18 50.387  -00 02 09.62  22.1w 14KW101   F51  C~1vXX      
2015 06  27.55772  20 18 50.331  -00 02 09.60  21.9w 14KW101   F51  C~1vXX      
2015 07  15.41481  20 17 27.002  -00 04 07.68  21.4w 14KW101   F51  C~1vXX      
2015 07  15.42643  20 17 26.971  -00 04 07.73  21.7w 14KW101   F51  C~1vXX      
2015 07  15.43842  20 17 26.912  -00 04 07.98  21.6w 14KW101   F51  C~1vXX      
2015 07  15.45084  20 17 26.826  -00 04 08.21  21.6w 14KW101   F51  C~1vXX      

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    -0.07       0.00    -0.06
  2   0.0002     -2.65     0.02      -1.99    -0.07
  3   0.0002     -3.01     0.03      -2.20    -0.01
  4   1.8075  16112.31    -0.02     295.33     0.15
  5   1.8076  16111.26     0.07     295.16    -0.11
  6   1.8076  16110.03    -0.01     295.39     0.04
  7   1.8077  16108.96     0.06     295.73     0.29
  8   2.7003  24138.40     0.05    -552.35     0.05
  9   2.7003  24137.88     0.03    -552.03     0.07
 10   2.7004  24137.37     0.02    -551.93    -0.13
 11   2.7004  24136.66    -0.18    -551.59    -0.08
 12   2.9161  18829.51    -0.02    -177.51    -0.14
 13   2.9161  18828.61    -0.08    -177.56    -0.03
 14   2.9162  18827.76    -0.08    -177.81    -0.10
 15   2.9162  18827.07     0.08    -177.87     0.01
 16   3.0170  16814.04    -0.06    -994.41     0.14
 17   3.0171  16813.58    -0.02    -994.92     0.02
 18   3.0171  16813.20     0.09    -995.39    -0.05
 19   3.0172  16812.63     0.01    -995.69     0.05
 20   3.7516  28970.79    -0.08    -476.30    -0.02
 21   3.7516  28970.07    -0.04    -476.18    -0.10
 22   3.7516  28969.41     0.07    -475.88     0.00
 23   3.7517  28968.55    -0.02    -475.65     0.03
 24   3.7735  28478.69    -0.00    -369.30     0.02
 25   3.7735  28477.81    -0.06    -369.14     0.04
 26   3.7735  28477.11     0.07    -369.04    -0.00
 27   3.7736  28476.27     0.06    -368.85     0.03
 28   3.8225  27204.27    -0.21    -242.31     0.04
 29   3.8225  27203.79     0.22    -242.26     0.05
 30   3.8225  27202.86     0.21    -242.34    -0.06
 31   3.8226  27201.53    -0.16    -242.32    -0.07

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.

14KW101    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.632    40.642    40.623
ecceobj         0.080     0.080     0.079
incobj         19.330    19.330    19.330
qmin           36.769    36.804    36.730
qmax           44.915    45.011    45.007
amean          40.770    40.779    40.764
amin           40.456    40.469    40.448
amax           41.098    41.118    41.104
emean           0.079     0.080     0.080
emin            0.065     0.067     0.066
emax            0.094     0.095     0.096
imean          19.964    19.958    19.957
imin           19.328    19.334    19.320
imax           20.627    20.620    20.610
excite_mean     0.351     0.351     0.351
fracstop        1.000     1.000     1.000
cjmean          2.919     2.919     2.919

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       176.2     176.5     175.9
kozaiamp        180.0     179.9     180.0