Orbit Fit and Astrometric record for 01KA77

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: 01KA77    
# Created Mon Oct 23 01:37:13 2017
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   33
# Arc:   4.70y
# First observation: 2001/05/24
#  Last observation: 2006/02/05
Preliminary a, adot, b, bdot, g, gdot:
  -0.000157   0.017841   0.000012   0.003701   0.020253   0.000000
# Chi-squared of fit:    98.36 DOF:   58 RMS:  0.31
# Min/Max residuals:    -1.20    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.323606E-05  1.799888E-02  4.359995E-06  3.747361E-03  2.086825E-02 -1.593847E-03
# Covariance matrix:
  1.2407E-13 -9.8303E-14  5.0442E-15 -1.1641E-14  4.6114E-14 -7.1668E-13
 -9.8303E-14  2.1267E-13 -1.3591E-14  3.5577E-14  1.6778E-14  2.1086E-12
  5.0442E-15 -1.3591E-14  7.6991E-14 -2.5516E-14 -1.7589E-15 -1.4828E-13
 -1.1641E-14  3.5577E-14 -2.5516E-14  2.4698E-14  8.9541E-15  3.9633E-13
  4.6114E-14  1.6778E-14 -1.7589E-15  8.9541E-15  1.4774E-13  4.5624E-13
 -7.1668E-13  2.1086E-12 -1.4828E-13  3.9633E-13  4.5624E-13  2.3350E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.952833 -111.634948    0.094579    0.034451   -1.014117  2452053.696633
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:          251.95543 +/-     0.068
Argument of Peri:      127.32428 +/-     0.062
Long of Asc Node:      239.18559 +/-     0.000
Inclination:            11.96069 +/-     0.000
Eccentricity:         0.09586915 +/-    0.0002
Semi-Major Axis:     47.15489391 +/-    0.0036
Time of Perihelion: 2487547.2845 +/-      21.9
Perihelion:          42.63419434 +/-    0.0117
Aphelion:            51.67559347 +/-    0.0119
Period (y)              323.8160 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.11531571 +/-    0.0003
Ecliptic Y          -45.42116921 +/-    0.0008
Ecliptic Z            1.63315622 +/-    0.0000
Ecliptic XDOT         0.00226986 +/-    0.0000
Ecliptic YDOT        -0.00065852 +/-    0.0000
Ecliptic ZDOT         0.00048443 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.92764531 +/-    0.0008
Geocenter to KBO     47.91968279 +/-    0.0009
# Hcoef:  5.12

The following table shows the complete astrometric record for 01KA77. 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 (01KA77) followed by the observatory code and reference code for the source of the astrometry.

2001 05  24.19589  16 27 47.60   -19 46 18.5   21.2R 01KA77    807  Cd1817      
2001 05  24.25835  16 27 47.33   -19 46 17.8         01KA77    807  Cd1817      
2001 06  10.03516  16 26 34.28   -19 42 59.8   21.5R 01KA77    304  Cd1817      
2001 06  10.11049  16 26 33.95   -19 42 58.8         01KA77    304  Cd1817      
2001 06  19.22829  16 25 55.81   -19 41 20.2   21.9R 01KA77    688  Cd1817      
2001 06  19.31404  16 25 55.43   -19 41 17.6         01KA77    688  Cd1817      
2001 07  18.42436  16 24 15.362  -19 37 07.59        01KA77    568  Cl5660      
2001 07  19.43102  16 24 12.748  -19 37 01.10        01KA77    568  Cl5660      
2001 07  24.28278  16 24 01.04   -19 36 33.3         01KA77    568  Cd3323      
2001 07  24.32274  16 24 00.94   -19 36 33.1         01KA77    568  Cd3323      
2001 07  25.31408  16 23 58.76   -19 36 27.9         01KA77    568  Cd3323      
2001 08  19.04925  16 23 28.37   -19 35 21.3   20.5R 01KA77    807  Cd7687      
2001 08  20.05467  16 23 28.19   -19 35 21.1         01KA77    807  Cd7687      
2001 08  21.05907  16 23 28.08   -19 35 21.3         01KA77    807  Cd7687      
2002 02  15.33197  16 35 13.83   -19 55 53.4   22.2R 01KA77    304   f2336      
2002 02  15.36296  16 35 13.89   -19 55 53.3         01KA77    304   f2336      
2002 02  22.63887  16 35 26.15   -19 55 44.0         01KA77    568  Ce9336      
2002 02  23.63600  16 35 27.50   -19 55 42.2   21.7R 01KA77    568  Ce9336      
2002 06  07.48594  16 31 14.00   -19 40 16.8         01KA77    568  Cf8904      
2002 06  07.48952  16 31 13.98   -19 40 16.8         01KA77    568  Cf8904      
2002 06  07.49621  16 31 13.95   -19 40 16.9         01KA77    568  Cf8904      
2002 06  07.50408  16 31 13.92   -19 40 16.6         01KA77    568  Cf8904      
2002 06  07.50920  16 31 13.90   -19 40 16.6         01KA77    568  Cf8904      
2002 07  09.99841  16 29 06.86   -19 35 06.3   21.2R 01KA77    304  Cf9823      
2002 07  10.16450  16 29 06.31   -19 35 05.1         01KA77    304  Cf9823      
2003 04  30.35088  16 38 22.88   -19 43 48.3   21.9R 01KA77    688  Ch8069      
2003 04  30.41097  16 38 22.69   -19 43 47.1         01KA77    688  Ch8069      
2005 06  29.27786  16 43 10.34   -19 24 46.3   23.3R 01KA77    688  Cn8276      
2005 06  29.32454  16 43 10.12   -19 24 46.6         01KA77    688  Cn8276      
2006 02  05.29101  16 52 19.87   -19 38 03.5   21.6R 01KA77    250  S~06AP      
2006 02  05.29541  16 52 19.89   -19 38 03.5         01KA77    250  S~06AP      
2006 02  05.29981  16 52 19.90   -19 38 03.5         01KA77    250  S~06AP      
2006 02  05.30421  16 52 19.92   -19 38 03.5         01KA77    250  S~06AP      

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     0.08       0.00    -0.31
  2   0.0002     -3.87     0.18       0.10    -0.36
  3   0.0461  -1053.50    -0.03      34.00    -0.31
  4   0.0463  -1058.26    -0.10      34.25    -0.16
  5   0.0713  -1605.70     0.32      46.47    -1.20
  6   0.0715  -1611.42    -0.30      48.18     0.42
  7   0.1512  -3046.97    -0.07      69.13    -0.33
  8   0.1540  -3084.47     0.13      69.59    -0.13
  9   0.1672  -3252.26     0.07      70.36    -0.17
 10   0.1674  -3253.69    -0.03      70.33    -0.20
 11   0.1701  -3284.93     0.08      70.49    -0.13
 12   0.2378  -3719.62    -0.08      66.76     0.10
 13   0.2405  -3722.16     0.03      66.54     0.23
 14   0.2433  -3723.66    -0.05      66.09     0.14
 15   0.7314   6312.48     0.37     378.67    -0.18
 16   0.7315   6313.31     0.34     378.89    -0.09
 17   0.7514   6483.19    -0.79     413.15     0.31
 18   0.7541   6501.79    -0.50     417.69     0.15
 19   1.0384   2824.66    -0.04     804.37     0.56
 20   1.0384   2824.38    -0.10     804.33     0.52
 21   1.0385   2823.97    -0.08     804.16     0.34
 22   1.0385   2823.51    -0.04     804.40     0.56
 23   1.0385   2823.23     0.00     804.35     0.51
 24   1.1275   1001.86     0.16     837.49     0.07
 25   1.1279    993.99     0.15     837.48     0.02
 26   1.9333   8852.91     0.46    1477.93     0.39
 27   1.9335   8850.08 (   0.82)   1478.75 (   0.99)
 28   4.0988  12732.41    -0.02    3169.40     0.38
 29   4.0989  12729.36    -0.43    3168.68    -0.35
 30   4.7039  20592.71     0.02    3369.73    -0.20
 31   4.7039  20592.99     0.10    3369.77    -0.19
 32   4.7039  20593.13     0.04    3369.78    -0.20
 33   4.7039  20593.41     0.13    3369.82    -0.19

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.

01KA77    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        47.204    47.215    47.193
ecceobj         0.098     0.098     0.098
incobj         11.958    11.958    11.959
qmin           42.121    42.022    42.138
qmax           53.156    53.163    53.162
amean          47.483    47.490    47.472
amin           47.089    47.080    47.076
amax           47.920    47.944    47.906
emean           0.094     0.094     0.094
emin            0.080     0.079     0.081
emax            0.110     0.110     0.110
imean          13.218    13.212    13.220
imin           12.898    12.885    12.914
imax           13.543    13.539    13.533
excite_mean     0.247     0.247     0.247
fracstop        1.000     1.000     1.000
cjmean          3.068     3.068     3.068

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       181.5     181.5     182.2
kozaiamp        180.0     180.0     180.0