Orbit Fit and Astrometric record for 04KL19

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: 04KL19    
# Created Mon Oct 23 01:37:31 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:   3.95y
# First observation: 2004/05/24
#  Last observation: 2008/05/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000005   0.040683   0.000033  -0.003963   0.033062   0.000000
# Chi-squared of fit:    21.95 DOF:   34 RMS:  0.19
# Min/Max residuals:    -0.39    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.968404E-05  4.041182E-02 -3.321356E-06 -3.932032E-03  3.193454E-02 -1.025575E-03
# Covariance matrix:
  2.0154E-13 -1.4796E-13 -3.6256E-15  7.8820E-15  5.7334E-14 -5.5049E-13
 -1.4796E-13  5.4207E-13  1.7463E-14 -4.8443E-14  5.4389E-13  3.3381E-12
 -3.6256E-15  1.7463E-14  1.4544E-13 -6.2921E-14  1.7448E-14  1.1863E-13
  7.8820E-15 -4.8443E-14 -6.2921E-14  5.7660E-14 -5.6494E-14 -3.3126E-13
  5.7334E-14  5.4389E-13  1.7448E-14 -5.6494E-14  1.1768E-12  3.8655E-12
 -5.5049E-13  3.3381E-12  1.1863E-13 -3.3126E-13  3.8655E-12  2.2819E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.495161 -127.192138   -0.191647   -0.025898   -0.994142  2453149.872103
# Heliocentric elements and errors
Epoch:              2453140.5000  =  2004/05/15
Mean Anomaly:          358.01183 +/-     0.013
Argument of Peri:      198.76237 +/-     0.027
Long of Asc Node:       38.52406 +/-     0.001
Inclination:             5.72469 +/-     0.000
Eccentricity:         0.32573396 +/-    0.0001
Semi-Major Axis:     47.88846642 +/-    0.0094
Time of Perihelion: 2453808.9916 +/-       4.4
Perihelion:          32.28956669 +/-    0.0083
Aphelion:            63.48736614 +/-    0.0136
Period (y)              331.4016 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.37449995 +/-    0.0006
Ecliptic Y          -25.84325060 +/-    0.0008
Ecliptic Z           -0.81713612 +/-    0.0000
Ecliptic XDOT         0.00281575 +/-    0.0000
Ecliptic YDOT        -0.00202428 +/-    0.0000
Ecliptic ZDOT        -0.00033458 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.30963573 +/-    0.0008
Geocenter to KBO     31.31405360 +/-    0.0011
# Hcoef:  9.00

The following table shows the complete astrometric record for 04KL19. 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 (04KL19) followed by the observatory code and reference code for the source of the astrometry.

2004 05  24.37136  15 20 00.87   -19 55 11.6         04KL19    568  C~0X5W      
2004 05  24.39644  15 20 00.71   -19 55 11.2   23.8g 04KL19    568  C~0X5W      
2004 05  24.41896  15 20 00.57   -19 55 10.6   24.0g 04KL19    568  C~0X5W      
2004 05  25.38026  15 19 54.79   -19 54 50.9   23.7g 04KL19    568  C~0X5W      
2004 06  10.30824  15 18 24.58   -19 49 33.7   23.6i 04KL19    568  C~0X5W      
2004 06  10.37921  15 18 24.21   -19 49 32.2   24.0i 04KL19    568  C~0X5W      
2004 06  10.44641  15 18 23.85   -19 49 31.3   23.5i 04KL19    568  C~0X5W      
2005 05  14.40334  15 30 24.70   -20 46 16.6   23.6r 04KL19    568  C~0X5W      
2005 05  14.43701  15 30 24.49   -20 46 16.0   23.5r 04KL19    568  C~0X5W      
2005 05  14.47570  15 30 24.23   -20 46 15.2   23.5r 04KL19    568  C~0X5W      
2005 07  09.23226  15 25 38.38   -20 30 08.8         04KL19    675  C~0X5W      
2005 07  10.22530  15 25 35.44   -20 29 57.6         04KL19    675  C~0X5W      
2005 07  10.25930  15 25 35.33   -20 29 57.1         04KL19    675  C~0X5W      
2005 08  03.08104  15 24 58.51   -20 27 23.9         04KL19    309  C~0X5W      
2005 08  03.08481  15 24 58.52   -20 27 23.8         04KL19    309  C~0X5W      
2006 06  30.27201  15 35 31.45   -21 18 18.9         04KL19    568  C~0X5W      
2006 07  01.29382  15 35 27.26   -21 18 04.1   23.6r 04KL19    568  C~0X5W      
2006 07  01.30691  15 35 27.19   -21 18 03.8   23.8r 04KL19    568  C~0X5W      
2008 05  05.38777  15 59 59.42   -22 59 14.0         04KL19    695  C~0X5X      
2008 05  05.41852  15 59 59.29   -22 59 13.6         04KL19    695  C~0X5X      

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     0.28
  2   0.0001     -2.28     0.01      -0.19     0.15
  3   0.0001     -4.35    -0.05      -0.12     0.27
  4   0.0028    -88.19    -0.19      -1.92     0.06
  5   0.0464  -1399.58    -0.10     -22.41    -0.01
  6   0.0466  -1405.01     0.01     -22.30     0.19
  7   0.0467  -1410.15     0.11     -22.75    -0.18
  8   0.9720   9265.92     0.06    -792.23    -0.02
  9   0.9721   9262.91     0.12    -792.35    -0.05
 10   0.9722   9259.17    -0.10    -792.45    -0.06
 11   1.1249   5126.85     0.11    -834.19    -0.35
 12   1.1276   5084.03     0.13    -833.57    -0.23
 13   1.1277   5082.41    -0.00    -833.46    -0.15
 14   1.1929   4542.88     0.00    -813.37     0.00
 15   1.1929   4542.99     0.13    -813.24     0.13
 16   2.0997  13908.30    -0.35   -1646.15    -0.39
 17   2.1025  13847.64     0.09   -1645.37    -0.10
 18   2.1025  13846.61    -0.14   -1645.30    -0.03
 19   3.9480  35447.80    -0.36   -3238.24     0.16
 20   3.9481  35445.91     0.45   -3238.19     0.31

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.

04KL19    quality flag:3

Type:           2:1E      2:1E      2:1E

axisobj        47.284    47.311    47.257
ecceobj         0.318     0.318     0.317
incobj          5.746     5.746     5.746
qmin           31.463    31.430    31.342
qmax           65.059    64.920    65.017
amean          47.797    47.797    47.797
amin           47.267    47.304    47.255
amax           48.497    48.440    48.474
emean           0.327     0.327     0.328
emin            0.314     0.313     0.312
emax            0.342     0.342     0.343
imean           4.752     4.831     4.557
imin            4.078     3.901     3.668
imax            5.418     5.465     5.448
excite_mean     0.338     0.338     0.338
fracstop        1.000     1.000     1.000
cjmean          3.003     3.003     3.003

libcent 0       289.0     290.0     287.4
libamp  0        20.0      15.9      25.7
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       189.4     187.7     134.1
kozaiamp        180.0     179.9     180.0