Orbit Fit and Astrometric record for 01QS297

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: 01QS297   
# Created Fri Dec 15 02:37:06 2017
# Orbit generated from Bernstein formalism
# Fitting    6 observations of    6
# Arc:  23.16d
# First observation: 2001/08/20
#  Last observation: 2001/09/12
Preliminary a, adot, b, bdot, g, gdot:
   0.000000   0.033622  -0.000001   0.002029   0.025251   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:     3.29 DOF:    7 RMS:  0.13
# Min/Max residuals:    -0.27    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.527651E-05  2.280664E-02  8.102642E-07  1.964589E-03  2.348956E-02  4.507492E-03
# Covariance matrix:
  4.6260E-11  6.4510E-08 -1.6923E-13  3.9879E-10  1.0672E-08 -1.4786E-07
  6.4510E-08  9.0814E-05 -2.3780E-10  5.6061E-07  1.5014E-05 -2.1434E-04
 -1.6923E-13 -2.3780E-10  3.7761E-13 -7.6354E-12 -3.9349E-11  5.3469E-10
  3.9879E-10  5.6061E-07 -7.6354E-12  3.7547E-09  9.2744E-08 -1.2766E-06
  1.0672E-08  1.5014E-05 -3.9349E-11  9.2744E-08  2.4829E-06 -3.4934E-05
 -1.4786E-07 -2.1434E-04  5.3469E-10 -1.2766E-06 -3.4934E-05  9.0458E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.281918  -36.452788   -0.057559    0.022514   -1.010746  2452141.618783
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           55.14585 +/-   106.723
Argument of Peri:      296.56424 +/-   246.208
Long of Asc Node:      309.45427 +/-     5.363
Inclination:             5.10009 +/-     1.890
Eccentricity:         0.20936885 +/-    1.2093
Semi-Major Axis:     47.61806072 +/-   20.7980
Time of Perihelion: 2433755.3864 +/-   33479.7
Perihelion:          37.64832234 +/-   59.8874
Aphelion:            57.58779911 +/-   62.8391
Period (y)              328.5986 +/-    215.28
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.08463018 +/-    2.2964
Ecliptic Y          -25.83666637 +/-    1.6966
Ecliptic Z            0.95244406 +/-    0.0639
Ecliptic XDOT         0.00198915 +/-    0.0024
Ecliptic YDOT         0.00183046 +/-    0.0027
Ecliptic ZDOT         0.00024089 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   43.58178236 +/-    2.1045
Geocenter to KBO     42.57209894 +/-    2.8558
# Hcoef:  5.39

The following table shows the complete astrometric record for 01QS297. 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 (01QS297) followed by the observatory code and reference code for the source of the astrometry.

2001 08  20.11804  21 41 45.84   -12 27 36.1   21.9R 01QS297   807  Cd7926      
2001 08  20.19624  21 41 45.49   -12 27 38.0         01QS297   807  Cd7926      
2001 08  21.13163  21 41 41.28   -12 27 58.3   21.9R 01QS297   807  Cd7926      
2001 08  21.20510  21 41 40.96   -12 27 59.9         01QS297   807  Cd7926      
2001 09  12.23381  21 40 07.06   -12 35 41.4   20.4R 01QS297   695  Ch1433      
2001 09  12.28087  21 40 06.89   -12 35 42.8         01QS297   695  Ch1433      

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     0.02       0.00     0.11
  2   0.0002     -5.47     0.05      -0.12    -0.11
  3   0.0028    -70.38    -0.14       0.91     0.04
  4   0.0030    -75.33     0.07       0.93    -0.03
  5   0.0633  -1525.63    -0.04      14.25     0.27
  6   0.0634  -1528.44     0.04      13.74    -0.27

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.

01QS297    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0