Orbit Fit and Astrometric record for 01QQ297

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: 01QQ297   
# Created Sat Dec 16 02:37:09 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:  12.13y
# First observation: 2001/08/19
#  Last observation: 2013/10/05
Preliminary a, adot, b, bdot, g, gdot:
   0.000369   0.023682  -0.000019   0.000057   0.025501   0.000000
# Chi-squared of fit:    22.00 DOF:   30 RMS:  0.20
# Min/Max residuals:    -0.39    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.511180E-05  2.376563E-02  7.134353E-08  7.196881E-05  2.413175E-02  1.893099E-03
# Covariance matrix:
  1.8945E-13 -1.3981E-14 -1.4204E-15 -4.7895E-16  1.2086E-13 -2.9925E-14
 -1.3981E-14  8.7378E-14 -1.1278E-15  6.3461E-17  1.1017E-13  3.1213E-13
 -1.4204E-15 -1.1278E-15  1.2468E-13 -1.4146E-14 -4.1432E-15 -3.5918E-15
 -4.7895E-16  6.3461E-17 -1.4146E-14  4.7684E-15 -8.0704E-16  4.6588E-16
  1.2086E-13  1.1017E-13 -4.1432E-15 -8.0704E-16  3.7144E-13  3.5933E-13
 -2.9925E-14  3.1213E-13 -3.5918E-15  4.6588E-16  3.5933E-13  1.1938E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.508585   -7.210008    0.456037   -0.071182   -0.901590  2452140.811033
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           50.80719 +/-     0.037
Argument of Peri:      212.99877 +/-     0.046
Long of Asc Node:       80.76426 +/-     0.002
Inclination:             4.41329 +/-     0.000
Eccentricity:         0.08043573 +/-    0.0000
Semi-Major Axis:     44.41666872 +/-    0.0040
Time of Perihelion: 2436881.0078 +/-      10.9
Perihelion:          40.84398171 +/-    0.0043
Aphelion:            47.98935573 +/-    0.0049
Period (y)              296.0242 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.82708258 +/-    0.0010
Ecliptic Y           -5.74458856 +/-    0.0001
Ecliptic Z           -3.25748789 +/-    0.0001
Ecliptic XDOT         0.00054283 +/-    0.0000
Ecliptic YDOT         0.00264939 +/-    0.0000
Ecliptic ZDOT        -0.00000853 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.34520472 +/-    0.0010
Geocenter to KBO     41.43917808 +/-    0.0010
# Hcoef:  6.82

The following table shows the complete astrometric record for 01QQ297. 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 (01QQ297) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.31029  23 40 41.45   -07 00 04.5   22.0R 01QQ297   807  Cd7925      
2001 08  19.39741  23 40 41.11   -07 00 07.1         01QQ297   807  Cd7925      
2001 08  20.31973  23 40 37.61   -07 00 32.0   22.5R 01QQ297   807  Cd7926      
2001 08  20.40536  23 40 37.26   -07 00 34.6         01QQ297   807  Cd7926      
2001 10  20.27095  23 36 22.65   -07 27 10.7   22.8R 01QQ297   695  Ce0366      
2001 10  20.32825  23 36 22.41   -07 27 11.9         01QQ297   695  Ce0366      
2001 10  21.15929  23 36 19.50   -07 27 26.8         01QQ297   695  Ce0366      
2002 08  10.41194  23 46 14.15   -06 23 20.2   22.3R 01QQ297   807  Cg3217      
2002 08  11.35019  23 46 11.06   -06 23 44.4         01QQ297   807  Cg3217      
2002 08  11.41322  23 46 10.87   -06 23 45.8         01QQ297   807  Cg3217      
2002 11  05.31229  23 40 33.66   -06 58 43.4   23.6R 01QQ297   568  Cl8341      
2002 11  05.37373  23 40 33.48   -06 58 44.5         01QQ297   568  Cl8341      
2002 11  06.34631  23 40 30.92   -06 58 54.9         01QQ297   568  Cl8341      
2009 01  16.088769 00 09 37.94   -03 37 43.9   23.3V 01QQ297   645  C~2Jx5      
2009 01  16.089598 00 09 37.94   -03 37 43.9   23.1V 01QQ297   645  C~2Jx5      
2009 01  16.092086 00 09 37.92   -03 37 43.9   23.8V 01QQ297   645  C~2Jx5      
2013 10  05.31979  00 36 06.25   -00 47 50.9   23.3R 01QQ297   695  C~0zdD      
2013 10  05.36404  00 36 06.06   -00 47 52.0         01QQ297   695  C~0zdD      

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    -0.00
  2   0.0002     -5.68    -0.03      -0.37    -0.17
  3   0.0028    -63.39     0.46      -2.50     0.31
  4   0.0030    -69.21     0.15      -2.82     0.19
  5   0.1696  -4180.85     0.19      34.17    -0.08
  6   0.1698  -4184.60    -0.32      34.48    -0.02
  7   0.1721  -4230.27    -0.09      37.91     0.20
  8   0.9750   5425.58    -0.10      44.16     0.08
  9   0.9775   5373.64    -0.39      40.41    -0.20
 10   0.9777   5370.49     0.01      40.26    -0.15
 11   1.2129    -74.18     0.17     120.53     0.05
 12   1.2130    -77.08    -0.15     120.58    -0.25
 13   1.2157   -116.18    -0.09     126.19     0.27
 14   7.4108  28810.73     0.21     648.09    -0.24
 15   7.4108  28810.73     0.17     648.09    -0.25
 16   7.4108  28810.45    -0.23     648.21    -0.14
 17  12.1287  55821.68    -0.09     152.33     0.16
 18  12.1288  55818.41     0.05     152.51     0.22

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.

01QQ297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.658    44.670    44.646
ecceobj         0.084     0.084     0.084
incobj          4.413     4.413     4.413
qmin           40.180    40.188    40.189
qmax           48.866    48.911    48.894
amean          44.419    44.428    44.406
amin           44.062    44.075    44.050
amax           44.794    44.809    44.792
emean           0.076     0.076     0.076
emin            0.060     0.061     0.060
emax            0.091     0.092     0.092
imean           2.584     2.586     2.584
imin            1.944     1.949     1.943
imax            3.184     3.185     3.187
excite_mean     0.089     0.089     0.089
fracstop        1.000     1.000     1.000
cjmean          3.097     3.097     3.097

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       183.3     182.9     183.2
kozaiamp        180.0     180.0     180.0