Orbit Fit and Astrometric record for 01QX297

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: 01QX297   
# Created Thu Oct 18 01:07:55 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   31 observations of   31
# Arc:   9.23y
# First observation: 2000/08/28
#  Last observation: 2009/11/20
# Chi-squared of fit:    72.62 DOF:   56 RMS:  0.27
# Min/Max residuals:    -0.53    1.20
# Exact a, adot, b, bdot, g, gdot:
  1.555762E-05  2.249133E-02  1.034050E-06  2.460274E-04  2.348169E-02 -6.253859E-04
# Covariance matrix:
  2.5180E-13 -1.2476E-13  1.2241E-15 -1.1040E-15 -1.2631E-14 -5.1866E-13
 -1.2476E-13  1.0301E-13 -1.1304E-15  1.0244E-15  3.2254E-16  4.8982E-13
  1.2241E-15 -1.1304E-15  1.3773E-13 -1.9013E-14 -1.9133E-16 -5.5216E-15
 -1.1040E-15  1.0244E-15 -1.9013E-14  4.0690E-15  1.1037E-16  5.0286E-15
 -1.2631E-14  3.2254E-16 -1.9133E-16  1.1037E-16  1.4448E-13 -5.5335E-14
 -5.1866E-13  4.8982E-13 -5.5216E-15  5.0286E-15 -5.5335E-14  2.4470E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.677797  -33.955517   -0.152712    0.011608   -0.995190  2451784.637993
# Heliocentric elements and errors
Epoch:              2451784.5000  =  2000/08/28
Mean Anomaly:          298.90175 +/-     0.121
Argument of Peri:      110.73216 +/-     0.133
Long of Asc Node:      279.79275 +/-     0.008
Inclination:             0.91362 +/-     0.000
Eccentricity:         0.03100912 +/-    0.0001
Semi-Major Axis:     44.21340180 +/-    0.0031
Time of Perihelion: 2470008.9996 +/-      37.3
Perihelion:          42.84238331 +/-    0.0038
Aphelion:            45.58442028 +/-    0.0039
Period (y)              293.9944 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.23851496 +/-    0.0006
Ecliptic Y          -24.20925907 +/-    0.0004
Ecliptic Z            0.50380999 +/-    0.0000
Ecliptic XDOT         0.00139667 +/-    0.0000
Ecliptic YDOT         0.00222140 +/-    0.0000
Ecliptic ZDOT         0.00002797 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.58409757 +/-    0.0005
Geocenter to KBO     42.58643034 +/-    0.0007
# Hcoef:  6.38

The following table shows the complete astrometric record for 01QX297. 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 (01QX297) followed by the observatory code and reference code for the source of the astrometry.

2000 08  28.13725  21 52 13.68   -12 11 56.7   22.1R 01QX297   807  Cg3217      
2000 08  28.20879  21 52 13.36   -12 11 58.4         01QX297   807  Cg3217      
2000 09  21.18305  21 50 35.84   -12 20 35.6   22.2R 01QX297   695  Ch1433      
2000 09  21.26456  21 50 35.51   -12 20 37.2         01QX297   695  Ch1433      
2001 08  20.15747  21 57 46.42   -11 41 37.3   21.2R 01QX297   807  Cd7926      
2001 08  20.23908  21 57 46.06   -11 41 39.3         01QX297   807  Cd7926      
2001 09  12.25165  21 56 06.60   -11 50 32.1   22.1R 01QX297   695  Cd7926      
2001 09  12.29892  21 56 06.39   -11 50 33.2         01QX297   695  Cd7926      
2002 08  09.19014  22 03 30.99   -11 09 45.7   21.7R 01QX297   807  Cg3217      
2002 08  10.27555  22 03 26.26   -11 10 10.5         01QX297   807  Cg3217      
2002 08  10.37906  22 03 25.79   -11 10 12.9         01QX297   807  Cg3217      
2003 08  31.34110  22 06 48.59   -10 50 46.8   23.3g 01QX297   568  Cq9101      
2003 08  31.37544  22 06 48.43   -10 50 47.7   23.0g 01QX297   568  Cq9101      
2003 08  31.40178  22 06 48.31   -10 50 48.4   22.7g 01QX297   568  Cq9101      
2003 09  04.45098  22 06 30.67   -10 52 26.2   23.0g 01QX297   568  Cq9101      
2005 09  30.12796  22 14 33.54   -10 06 04.8   23.2R 01QX297   688  Co3551      
2005 09  30.21829  22 14 33.23   -10 06 08.1         01QX297   688  Co3551      
2006 09  25.16964  22 19 44.56   -09 35 51.7   22.9R 01QX297   688  Cs0792      
2006 09  25.27243  22 19 44.13   -09 35 53.4         01QX297   688  Cs0792      
2007 06  10.69476  22 30 26.30   -08 34 05.8   23.0R 01QX297   250  S~06AP      
2007 06  10.70170  22 30 26.30   -08 34 05.8         01QX297   250  S~06AP      
2007 06  10.70864  22 30 26.29   -08 34 05.9         01QX297   250  S~06AP      
2007 06  10.71559  22 30 26.29   -08 34 05.9         01QX297   250  S~06AP      
2009 11  19.90264  22 32 20.48   -08 21 16.1         01QX297   250  S~0M3O      
2009 11  19.90502  22 32 20.48   -08 21 16.1         01QX297   250  S~0M3O      
2009 11  19.93848  22 32 20.48   -08 21 16.2         01QX297   250  S~0M3O      
2009 11  19.94087  22 32 20.48   -08 21 16.2         01QX297   250  S~0M3O      
2009 11  19.94595  22 32 20.49   -08 21 15.9         01QX297   250  S~0M3O      
2009 11  19.95151  22 32 20.49   -08 21 15.9         01QX297   250  S~0M3O      
2009 11  20.00690  22 32 20.48   -08 21 16.0         01QX297   250  S~0M3O      
2009 11  20.01245  22 32 20.49   -08 21 15.8         01QX297   250  S~0M3O      

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     0.03       0.00    -0.18
  2   0.0002      0.00     0.04       0.00    -0.22
  3   0.0658      0.00     0.60       0.00    -0.06
  4   0.0661      0.00     0.14       0.00    -0.10
  5   0.9775      0.00    -0.08       0.00    -0.05
  6   0.9777      0.00     0.08       0.00    -0.11
  7   1.0407      0.00     0.15       0.00     0.22
  8   1.0408      0.00    -0.08       0.00     0.15
  9   1.9468      0.00     0.09       0.00    -0.53
 10   1.9497      0.00    -0.14       0.00    -0.05
 11   1.9500      0.00    -0.34       0.00    -0.04
 12   3.0067      0.00     0.06       0.00     0.25
 13   3.0068      0.00    -0.03       0.00     0.18
 14   3.0069      0.00    -0.07       0.00     0.12
 15   3.0180      0.00     0.30       0.00    -0.17
 16   5.0896      0.00    -0.02       0.00     1.20
 17   5.0899      0.00     0.07       0.00    -0.30
 18   6.0754      0.00     0.34       0.00    -0.28
 19   6.0757      0.00    -0.22       0.00     0.27
 20   6.7832      0.00    -0.05       0.00     0.37
 21   6.7832      0.00    -0.01       0.00     0.38
 22   6.7832      0.00    -0.12       0.00     0.28
 23   6.7832      0.00    -0.08       0.00     0.29
 24   9.2287      0.00     0.09       0.00    -0.38
 25   9.2287      0.00     0.08       0.00    -0.37
 26   9.2288      0.00     0.06       0.00    -0.45
 27   9.2288      0.00     0.05       0.00    -0.45
 28   9.2288      0.00     0.20       0.00    -0.14
 29   9.2288      0.00     0.20       0.00    -0.14
 30   9.2289      0.00    -0.01       0.00    -0.20
 31   9.2290      0.00     0.14       0.00     0.00

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.

01QX297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.311    44.311    44.311
ecceobj         0.032     0.032     0.032
incobj          0.912     0.912     0.912
qmin           41.932    41.939    41.926
qmax           46.674    46.678    46.668
amean          44.190    44.190    44.190
amin           43.844    43.846    43.844
amax           44.544    44.546    44.538
emean           0.032     0.032     0.032
emin            0.016     0.016     0.016
emax            0.048     0.048     0.048
imean           2.667     2.667     2.667
imin            2.010     2.010     2.009
imax            3.215     3.215     3.215
excite_mean     0.057     0.057     0.057
fracstop        1.000     1.000     1.000
cjmean          3.100     3.100     3.100

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       185.1     185.1     185.2
kozaiamp        179.9     180.0     180.0