Orbit Fit and Astrometric record for 01KF76

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: 01KF76    
# Created Sat Oct 21 01:37:12 2017
# Orbit generated from Bernstein formalism
# Fitting   16 observations of   17
# Arc:   5.99y
# First observation: 2001/05/22
#  Last observation: 2007/05/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.000189   0.021866   0.000010  -0.001200   0.022560   0.000000
# Chi-squared of fit:    16.25 DOF:   26 RMS:  0.18
# Min/Max residuals:    -0.38    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.570169E-05  2.164818E-02 -1.263609E-06 -1.188770E-03  2.301913E-02 -5.204809E-04
# Covariance matrix:
  2.9493E-13 -3.9998E-13 -8.5055E-15  1.9852E-14  1.6654E-13 -2.6525E-12
 -3.9998E-13  9.8045E-13  2.2082E-14 -5.1947E-14 -3.8631E-13  6.9440E-12
 -8.5055E-15  2.2082E-14  1.5290E-13 -3.1795E-14 -9.6983E-15  1.5865E-13
  1.9852E-14 -5.1947E-14 -3.1795E-14  1.8338E-14  2.0253E-14 -3.7400E-13
  1.6654E-13 -3.8631E-13 -9.6983E-15  2.0253E-14  4.6031E-13 -2.6864E-12
 -2.6525E-12  6.9440E-12  1.5865E-13 -3.7400E-13 -2.6864E-12  5.0001E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.684807 -117.019010    0.032792   -0.012298   -1.018148  2452051.705673
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:          254.94004 +/-     0.201
Argument of Peri:      299.81990 +/-     0.182
Long of Asc Node:       50.95300 +/-     0.001
Inclination:             3.21918 +/-     0.000
Eccentricity:         0.02513833 +/-    0.0003
Semi-Major Axis:     44.13995740 +/-    0.0075
Time of Perihelion: 2483309.9264 +/-      59.2
Perihelion:          43.03035245 +/-    0.0171
Aphelion:            45.24956235 +/-    0.0173
Period (y)              293.2622 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.22144991 +/-    0.0006
Ecliptic Y          -39.58504773 +/-    0.0011
Ecliptic Z           -0.51926829 +/-    0.0000
Ecliptic XDOT         0.00231425 +/-    0.0000
Ecliptic YDOT        -0.00111075 +/-    0.0000
Ecliptic ZDOT        -0.00014044 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.45393885 +/-    0.0010
Geocenter to KBO     43.44212059 +/-    0.0013
# Hcoef:  7.11

The following table shows the complete astrometric record for 01KF76. 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 (01KF76) followed by the observatory code and reference code for the source of the astrometry.

2001 05  22.20493  16 03 10.13   -21 25 34.3   22.7R 01KF76    807  Cd1817      
2001 05  22.28507  16 03 09.74   -21 25 33.3         01KF76    807  Cd1817      
2001 06  10.02646  16 01 40.90   -21 21 36.8   23.2R 01KF76    304  Cd1817      
2001 06  10.10167  16 01 40.55   -21 21 35.9         01KF76    304  Cd1817      
2001 07  24.27778  15 59 07.43   -21 14 27.7   23.2R 01KF76    568  Cd4418      
2001 07  24.31517  15 59 07.37   -21 14 27.5         01KF76    568  Cd4418      
2001 07  25.30929  15 59 05.46   -21 14 21.9   23.3R 01KF76    568  Cd4418      
2002 03  20.62434  16 12 07.25   -21 52 12.0         01KF76    568  Cf4952      
2002 03  22.57886  16 12 04.19   -21 52 07.6         01KF76    568  Cf4952      
2002 03  22.61707  16 12 04.11   -21 52 07.4         01KF76    568  Cf4952      
2003 04  29.53379  16 15 19.05   -22 05 16.9   23.5R 01KF76    568  Ch9866      
2003 04  29.58006  16 15 18.86   -22 05 16.5         01KF76    568  Ch9866      
2003 04  30.57284  16 15 14.65   -22 05 07.1         01KF76    568  Ch9866      
2007 05  19.70031  16 34 54.81   -23 05 51.2   23.6R 01KF76    250  S~06AP      
2007 05  19.70725  16 34 54.78   -23 05 51.1         01KF76    250  S~06AP      
2007 05  19.71420  16 34 54.74   -23 05 51.1         01KF76    250  S~06AP      
2007 05  19.72114  16 34 54.71   -23 05 51.0         01KF76    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    -0.17       0.00     0.09
  2   0.0002     -5.54    -0.14      -0.08     0.08
  3   0.0515  -1268.63    -0.03     -10.44     0.12
  4   0.0517  -1273.60    -0.04     -10.52     0.10
  5   0.1727  -3456.22    -0.06     -15.47    -0.38
  6   0.1728  -3457.09     0.17     -15.44    -0.36
  7   0.1755  -3484.38     0.13     -15.30    -0.38
  8   0.8280   7658.64     0.17    -168.67     0.21
  9   0.8333   7615.89     0.16    -172.01    -0.05
 10   0.8334   7614.76    -0.05    -172.01     0.02
 11   1.9366  10428.83    -0.13    -468.25     0.41
 12   1.9367  10426.16    -0.00    -468.32     0.39
 13   1.9394  10366.75 (  -0.02)   -469.29 (   0.56)
 14   5.9918  27229.29     0.00   -1480.37    -0.07
 15   5.9918  27228.86     0.04   -1480.33    -0.03
 16   5.9918  27228.30    -0.04   -1480.41    -0.10
 17   5.9918  27227.87    -0.00   -1480.37    -0.05

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.

01KF76    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.155    44.177    44.132
ecceobj         0.027     0.026     0.028
incobj          3.222     3.222     3.222
qmin           42.513    42.558    42.394
qmax           46.535    46.475    46.544
amean          44.443    44.465    44.419
amin           44.098    44.122    44.076
amax           44.787    44.823    44.768
emean           0.025     0.025     0.026
emin            0.010     0.009     0.011
emax            0.039     0.038     0.040
imean           2.192     2.195     2.190
imin            1.610     1.620     1.599
imax            2.701     2.701     2.702
excite_mean     0.046     0.046     0.047
fracstop        1.000     1.000     1.000
cjmean          3.104     3.105     3.104

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       182.7     182.1     183.0
kozaiamp        180.0     180.0     179.9