Orbit Fit and Astrometric record for 01QO297

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: 01QO297   
# Created Wed Dec 13 02:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting   17 observations of   18
# Arc:   8.18y
# First observation: 2000/08/26
#  Last observation: 2008/10/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000084   0.022292   0.000006  -0.000408   0.022887   0.000000
# Chi-squared of fit:    49.94 DOF:   28 RMS:  0.30
# Min/Max residuals:    -1.01    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.446022E-05  2.225492E-02  5.300742E-07 -4.049221E-04  2.351792E-02 -6.343857E-04
# Covariance matrix:
  5.5882E-13 -3.7009E-13 -3.8911E-15  5.4602E-15 -4.7496E-13 -1.5309E-12
 -3.7009E-13  3.7404E-13  5.7194E-15 -6.9190E-15  1.9443E-13  1.9825E-12
 -3.8911E-15  5.7194E-15  1.7242E-13 -2.7675E-14 -3.5660E-15  3.8471E-14
  5.4602E-15 -6.9190E-15 -2.7675E-14  8.9775E-15  9.3578E-16 -4.2747E-14
 -4.7496E-13  1.9443E-13 -3.5660E-15  9.3578E-16  1.4162E-12 -4.1890E-13
 -1.5309E-12  1.9825E-12  3.8471E-14 -4.2747E-14 -4.1890E-13  1.2417E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.459308  -13.097633    0.243596   -0.007999   -0.977595  2451782.719823
# Heliocentric elements and errors
Epoch:              2451780.5000  =  2000/08/24
Mean Anomaly:          258.22058 +/-     0.213
Argument of Peri:      309.33586 +/-     0.190
Long of Asc Node:      143.27197 +/-     0.006
Inclination:             1.13401 +/-     0.000
Eccentricity:         0.03822181 +/-    0.0002
Semi-Major Axis:     43.10776280 +/-    0.0080
Time of Perihelion: 2481007.8284 +/-      60.6
Perihelion:          41.46010593 +/-    0.0107
Aphelion:            44.75541968 +/-    0.0111
Period (y)              283.0358 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.31602644 +/-    0.0021
Ecliptic Y          -10.08924518 +/-    0.0005
Ecliptic Z           -0.34085355 +/-    0.0000
Ecliptic XDOT         0.00050752 +/-    0.0000
Ecliptic YDOT         0.00254556 +/-    0.0000
Ecliptic ZDOT        -0.00004639 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.50350725 +/-    0.0020
Geocenter to KBO     42.52076868 +/-    0.0022
# Hcoef:  5.81

The following table shows the complete astrometric record for 01QO297. 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 (01QO297) followed by the observatory code and reference code for the source of the astrometry.

2000 08  26.21908  23 12 31.14   -05 35 41.3   22.3R 01QO297   807  Cg3217      
2000 08  26.27600  23 12 30.90   -05 35 42.9         01QO297   807  Cg3217      
2001 05  23.33702  23 19 30.45   -04 51 37.7   22.3R 01QO297   807  Ch1433      
2001 05  23.34067  23 19 30.46   -04 51 37.8   22.1R 01QO297   807  Ch1433      
2001 08  19.23948  23 17 46.00   -05 03 54.9   21.3R 01QO297   807  Cd7925      
2001 08  19.32335  23 17 45.65   -05 03 57.1         01QO297   807  Cd7925      
2001 08  20.29469  23 17 41.82   -05 04 22.0   21.2R 01QO297   807  Cd7925      
2001 08  20.38078  23 17 41.38   -05 04 24.4         01QO297   807  Cd7925      
2002 08  11.37222  23 23 01.19   -04 31 52.9   21.3R 01QO297   807  Cg3217      
2002 08  12.31262  23 22 57.81   -04 32 15.2         01QO297   807  Cg3217      
2002 08  12.39073  23 22 57.52   -04 32 17.1         01QO297   807  Cg3217      
2002 09  11.36111  23 20 55.19   -04 45 29.0   22.0R 01QO297   662  Cg3217      
2002 09  11.44646  23 20 54.84   -04 45 32.0         01QO297   662  Cg3217      
2007 11  11.13277  23 40 58.20   -02 43 46.9   22.5R 01QO297   688  Cw6710      
2007 11  11.20714  23 40 58.10   -02 43 48.1         01QO297   688  Cw6710      
2008 10  30.246674 23 46 12.36   -02 11 23.1         01QO297   645  C~1GLG      
2008 10  30.247504 23 46 12.36   -02 11 23.1         01QO297   645  C~1GLG      
2008 10  30.249991 23 46 12.35   -02 11 23.2         01QO297   645  C~1GLG      

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     0.10       0.00    -0.17
  2   0.0002     -3.92     0.11      -0.08    -0.25
  3   0.7395   6800.93     0.14     -12.86     0.15
  4   0.7396   6801.03     0.11     -13.01     0.00
  5   0.9802   5074.59     0.25     -80.07     0.09
  6   0.9804   5068.91     0.05     -80.05     0.12
  7   0.9831   5006.47     0.32     -80.58     0.04
  8   0.9833   4999.48    -1.01     -80.22     0.41
  9   1.9580  10169.41     0.15    -159.61    -0.25
 10   1.9606  10114.03    -0.06    -160.25    -0.34
 11   1.9608  10109.29    -0.12    -160.29    -0.37
 12   2.0428   8112.42 (  -0.26)   -170.42 (   1.18)
 13   2.0431   8106.42    -0.15    -171.13     0.46
 14   7.2085  27698.73    -0.26    -581.83     0.59
 15   7.2087  27696.85     0.67    -582.34     0.01
 16   8.1780  32901.64    -0.11    -674.79    -0.16
 17   8.1780  32901.64    -0.07    -674.79    -0.16
 18   8.1780  32901.45    -0.12    -674.82    -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.

01QO297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.186    43.210    43.162
ecceobj         0.037     0.037     0.037
incobj          1.134     1.134     1.134
qmin           39.897    39.986    39.880
qmax           46.210    46.212    46.244
amean          42.978    43.002    42.954
amin           42.645    42.668    42.626
amax           43.316    43.352    43.305
emean           0.047     0.047     0.048
emin            0.026     0.026     0.027
emax            0.067     0.067     0.068
imean           1.925     1.914     1.936
imin            0.696     0.702     0.688
imax            2.731     2.708     2.752
excite_mean     0.059     0.058     0.059
fracstop        1.000     1.000     1.000
cjmean          3.085     3.085     3.085

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       189.7     189.3     190.1
kozaiamp        180.0     180.0     180.0