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 Sun Dec 22 02:08:16 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     43 observations of     43
# Arc:  14.96y
# First observation: 2001/05/24
#  Last observation: 2016/05/07
# Chi-squared of fit:   161.53 DOF:     80 RMS:  0.34
# Min/Max residuals:    -1.13    0.75
# Exact a, adot, b, bdot, g, gdot:
  1.294325E-05  1.800006E-02  3.757315E-06  3.748210E-03  2.086869E-02 -1.580952E-03
# Covariance matrix:
  9.2148E-14 -3.3425E-14  5.8564E-15 -4.8976E-15  4.4818E-14 -9.5811E-14
 -3.3425E-14  2.5115E-14 -4.9099E-15  4.3863E-15 -2.2280E-14  8.5091E-14
  5.8564E-15 -4.9099E-15  5.6443E-14 -6.4201E-15  4.9709E-15 -1.7548E-14
 -4.8976E-15  4.3863E-15 -6.4201E-15  2.2510E-15 -2.8289E-15  1.6059E-14
  4.4818E-14 -2.2280E-14  4.9709E-15 -2.8289E-15  1.1051E-13 -5.8747E-14
 -9.5811E-14  8.5091E-14 -1.7548E-14  1.6059E-14 -5.8747E-14  3.1062E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.952833 -111.634948    0.094580    0.034451   -1.014118  2452053.696633
# Heliocentric elements and errors
Epoch:              2452054.5000  =  2001/05/25
Mean Anomaly:          251.74111 +/-     0.034
Argument of Peri:      127.46934 +/-     0.027
Long of Asc Node:      239.18718 +/-     0.000
Inclination:            11.96252 +/-     0.000
Eccentricity:         0.09523935 +/-    0.0000
Semi-Major Axis:     47.15220448 +/-    0.0031
Time of Perihelion: 2487618.6565 +/-      13.9
Perihelion:          42.66145926 +/-    0.0034
Aphelion:            51.64294969 +/-    0.0039
Period (y)              323.7883 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.11495654 +/-    0.0003
Ecliptic Y          -45.42022557 +/-    0.0007
Ecliptic Z            1.63309290 +/-    0.0000
Ecliptic XDOT         0.00226934 +/-    0.0000
Ecliptic YDOT        -0.00066013 +/-    0.0000
Ecliptic ZDOT         0.00048459 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.92669250 +/-    0.0007
Geocenter to KBO     47.91876908 +/-    0.0008
# Hcoef:  5.21

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      
2010 03  04.990030 17 11 08.166  -19 12 05.46        01KA77    250  S~82lx      
2010 03  04.992414 17 11 08.166  -19 12 05.47        01KA77    250  S~82lx      
2010 03  04.995227 17 11 08.167  -19 12 05.47        01KA77    250  S~82lx      
2010 03  04.997611 17 11 08.167  -19 12 05.47        01KA77    250  S~82ly      
2013 03  11.370633 17 24 41.719  -18 48 09.14  22.3r 01KA77    W84  C~8GhH      
2013 03  11.372117 17 24 41.722  -18 48 09.14  22.4r 01KA77    W84  C~8GhH      
2014 06  30.222142 17 24 05.873  -18 25 40.69  22.2r 01KA77    W84  C~8GhH      
2016 04  03.587406 17 38 16.22   -18 17 48.9         01KA77    T14  C~82ly      
2016 05  03.491090 17 37 14.43   -18 13 30.3         01KA77    T14  C~82ly      
2016 05  07.573038 17 37 01.16   -18 12 56.9         01KA77    T14  C~82ly      

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     0.12       0.00    -0.21
     2   0.0002      0.00     0.22       0.00    -0.27
     3   0.0461      0.00     0.01       0.00    -0.20
     4   0.0463      0.00    -0.03       0.00    -0.04
     5   0.0713      0.00     0.24       0.00    -1.13
     6   0.0715      0.00    -0.14       0.00     0.56
     7   0.1512      0.00    -0.01       0.00    -0.24
     8   0.1540      0.00     0.22       0.00    -0.06
     9   0.1672      0.00     0.16       0.00    -0.10
    10   0.1674      0.00     0.05       0.00    -0.11
    11   0.1701      0.00     0.18       0.00    -0.06
    12   0.2378      0.00     0.04       0.00     0.18
    13   0.2405      0.00     0.17       0.00     0.29
    14   0.2433      0.00     0.07       0.00     0.21
    15   0.7314      0.00     0.22       0.00    -0.21
    16   0.7315      0.00     0.21       0.00    -0.11
    17   0.7514      0.00    -0.92       0.00     0.44
    18   0.7541      0.00    -0.64       0.00     0.23
    19   1.0384      0.00    -0.10       0.00     0.54
    20   1.0384      0.00    -0.16       0.00     0.50
    21   1.0385      0.00    -0.17       0.00     0.32
    22   1.0385      0.00    -0.10       0.00     0.53
    23   1.0385      0.00    -0.06       0.00     0.47
    24   1.1275      0.00     0.04       0.00     0.00
    25   1.1279      0.00     0.01       0.00    -0.04
    26   1.9333      0.00     0.28       0.00     0.17
    27   1.9335      0.00     0.75       0.00     0.72
    28   4.0988      0.00    -0.24       0.00    -0.02
    29   4.0989      0.00    -0.77       0.00    -0.69
    30   4.7039      0.00     0.04       0.00    -0.69
    31   4.7039      0.00     0.13       0.00    -0.69
    32   4.7039      0.00     0.07       0.00    -0.69
    33   4.7039      0.00     0.16       0.00    -0.69
    34   8.7797      0.00     0.29       0.00    -0.12
    35   8.7797      0.00     0.25       0.00    -0.15
    36   8.7797      0.00     0.21       0.00    -0.16
    37   8.7797      0.00     0.17       0.00    -0.17
    38  11.7979      0.00     0.10       0.00     0.10
    39  11.7979      0.00     0.12       0.00     0.09
    40  13.1007      0.00     0.07       0.00     0.09
    41  14.8621      0.00    -0.22       0.00     0.21
    42  14.9440      0.00    -0.16       0.00     0.11
    43  14.9552      0.00    -0.09       0.00     0.14

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        47.201    47.201    47.201
ecceobj         0.097     0.097     0.097
incobj         11.960    11.960    11.960
qmin           42.081    42.094    42.070
qmax           53.128    53.139    53.123
amean          47.480    47.480    47.480
amin           47.090    47.084    47.087
amax           47.916    47.918    47.922
emean           0.094     0.094     0.094
emin            0.080     0.080     0.080
emax            0.109     0.109     0.110
imean          13.219    13.219    13.219
imin           12.901    12.904    12.904
imax           13.542    13.548    13.537
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       182.0     182.0     182.2
kozaiamp        179.9     179.9     179.9