Orbit Fit and Astrometric record for 01QW322

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: 01QW322   
# Created Mon Oct 23 01:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting   53 observations of   53
# Arc:   3.22y
# First observation: 2001/07/27
#  Last observation: 2004/10/15
Preliminary a, adot, b, bdot, g, gdot:
   0.000055   0.021441  -0.000011  -0.001795   0.023077   0.000000
# Chi-squared of fit:  2743.02 DOF:  100 RMS:  1.27
# Min/Max residuals:    -2.03    2.03
# Exact a, adot, b, bdot, g, gdot:
  2.313644E-05  2.169303E-02 -5.791886E-06 -1.824302E-03  2.311889E-02  5.343060E-04
# Covariance matrix:
  6.2050E-14 -7.5236E-14 -1.7487E-15  6.1803E-15  2.3823E-16 -1.1284E-12
 -7.5236E-14  4.1913E-13  1.3249E-14 -4.6951E-14  5.5697E-14  8.5545E-12
 -1.7487E-15  1.3249E-14  5.4963E-14 -2.5488E-14  1.5457E-15  2.8619E-13
  6.1803E-15 -4.6951E-14 -2.5488E-14  2.7288E-14 -5.6143E-15 -1.0138E-12
  2.3823E-16  5.5697E-14  1.5457E-15 -5.6143E-15  6.8945E-14  1.0034E-12
 -1.1284E-12  8.5545E-12  2.8619E-13 -1.0138E-12  1.0034E-12  1.8477E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.132803  -53.715684    0.038342   -0.002503   -1.017688  2452117.923703
# Heliocentric elements and errors
Epoch:              2452110.5000  =  2001/07/20
Mean Anomaly:          113.29646 +/-     0.775
Argument of Peri:       65.78210 +/-     0.768
Long of Asc Node:      124.69944 +/-     0.000
Inclination:             4.81572 +/-     0.000
Eccentricity:         0.02351719 +/-    0.0005
Semi-Major Axis:     43.84133431 +/-    0.0036
Time of Perihelion: 2418741.9047 +/-     228.2
Perihelion:          42.81030917 +/-    0.0238
Aphelion:            44.87235945 +/-    0.0238
Period (y)              290.2912 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           26.17278605 +/-    0.0003
Ecliptic Y          -35.70404314 +/-    0.0004
Ecliptic Z           -0.10047941 +/-    0.0000
Ecliptic XDOT         0.00209941 +/-    0.0000
Ecliptic YDOT         0.00147134 +/-    0.0000
Ecliptic ZDOT        -0.00021598 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.26966819 +/-    0.0004
Geocenter to KBO     43.25467643 +/-    0.0005
# Hcoef:  7.85

The following table shows the complete astrometric record for 01QW322. 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 (01QW322) followed by the observatory code and reference code for the source of the astrometry.

2001 07  27.42296  20 34 48.24   -18 49 49.9         01QW322   568  Ce0366      
2001 07  27.42296  20 34 48.48   -18 49 51.1         01QW322   568  Ce0366      
2001 07  27.47595  20 34 48.25   -18 49 52.0         01QW322   568  Ce0366      
2001 08  24.24085  20 32 43.27   -18 57 50.4   23.8R 01QW322   568  Ce0366      
2001 08  24.24085  20 32 43.53   -18 57 51.8   24.1R 01QW322   568  Ce0366      
2001 08  24.26181  20 32 43.19   -18 57 51.0   24.3R 01QW322   568  Ce0367      
2001 08  24.26181  20 32 43.45   -18 57 52.1   24.0R 01QW322   568  Ce0366      
2001 08  24.28289  20 32 43.09   -18 57 51.2   23.9R 01QW322   568  Ce0367      
2001 08  24.28289  20 32 43.35   -18 57 52.6   23.8R 01QW322   568  Ce0366      
2001 08  25.25689  20 32 39.14   -18 58 06.4   24.1R 01QW322   568  Ce0367      
2001 08  25.25689  20 32 39.38   -18 58 08.0   24.0R 01QW322   568  Ce0366      
2001 08  25.27754  20 32 39.03   -18 58 07.0   23.7R 01QW322   568  Ce0367      
2001 08  25.27754  20 32 39.25   -18 58 08.0   23.6R 01QW322   568  Ce0366      
2001 09  18.16406  20 31 17.16   -19 03 22.8         01QW322   675  Ce0367      
2001 09  18.16406  20 31 17.43   -19 03 24.1         01QW322   675  Ce0366      
2001 09  18.17234  20 31 17.14   -19 03 23.0         01QW322   675  Ce0367      
2001 09  18.17234  20 31 17.42   -19 03 24.6         01QW322   675  Ce0366      
2001 09  18.17648  20 31 17.14   -19 03 23.1         01QW322   675  Ce0367      
2001 09  18.17648  20 31 17.40   -19 03 24.7         01QW322   675  Ce0366      
2001 09  19.18914  20 31 14.46   -19 03 32.8         01QW322   675  Ce0367      
2001 09  19.18914  20 31 14.73   -19 03 34.0         01QW322   675  Ce0366      
2001 09  19.26248  20 31 14.28   -19 03 33.9         01QW322   675  Ce0367      
2001 09  19.26248  20 31 14.51   -19 03 35.1         01QW322   675  Ce0366      
2002 06  03.45486  20 43 21.38   -18 23 12.1         01QW322   675  Cf7165      
2002 06  03.45486  20 43 21.60   -18 23 13.8         01QW322   675  Cf7165      
2002 06  04.42014  20 43 19.30   -18 23 22.3         01QW322   675  Cf7165      
2002 06  04.42014  20 43 19.53   -18 23 23.6         01QW322   675  Cf7165      
2002 06  04.43750  20 43 19.24   -18 23 22.3   24. R 01QW322   675  Cf7165      
2002 06  04.43750  20 43 19.50   -18 23 23.8   24. R 01QW322   675  Cf7165      
2002 06  04.45451  20 43 19.19   -18 23 22.3         01QW322   675  Cf7165      
2002 06  04.45451  20 43 19.46   -18 23 23.8         01QW322   675  Cf7165      
2002 06  07.52857  20 43 11.92   -18 23 54.4         01QW322   568  Cf8914      
2002 06  07.52857  20 43 12.14   -18 23 56.0         01QW322   568  Cf8914      
2002 06  07.53979  20 43 11.90   -18 23 54.6         01QW322   568  Cf8914      
2002 06  07.53979  20 43 12.12   -18 23 56.0         01QW322   568  Cf8914      
2003 07  06.46131  20 46 42.58   -18 17 22.5   24.6R 01QW322   568  Ci2660      
2003 07  06.46131  20 46 42.79   -18 17 24.2   24.0R 01QW322   568  Ci2660      
2003 07  06.51841  20 46 42.36   -18 17 23.5         01QW322   568  Ci2660      
2003 07  06.51841  20 46 42.55   -18 17 25.2         01QW322   568  Ci2660      
2003 07  07.48187  20 46 38.43   -18 17 40.3         01QW322   568  Ci2660      
2003 07  07.48187  20 46 38.61   -18 17 41.9         01QW322   568  Ci2660      
2003 10  28.01437  20 40 45.98   -18 41 46.5         01QW322   309  Ck3026      
2003 10  28.01437  20 40 46.15   -18 41 48.2         01QW322   309  Ck3026      
2003 10  29.07019  20 40 46.63   -18 41 44.7         01QW322   309  Ck3026      
2003 10  29.07019  20 40 46.79   -18 41 46.3         01QW322   309  Ck3026      
2004 10  11.99947  20 45 52.82   -18 28 25.4   23.8R 01QW322   309  Cn8280      
2004 10  11.99947  20 45 52.93   -18 28 27.2   23.8R 01QW322   309  Cn8280      
2004 10  12.14095  20 45 52.68   -18 28 26.2   23.8R 01QW322   309  Cn8280      
2004 10  12.14095  20 45 52.79   -18 28 27.9   24.0R 01QW322   309  Cn8280      
2004 10  13.13509  20 45 51.77   -18 28 30.2   24.3R 01QW322   309  Cn8280      
2004 10  13.13509  20 45 51.86   -18 28 31.6   24.0R 01QW322   309  Cn8280      
2004 10  15.16448  20 45 50.21   -18 28 37.2   24.4R 01QW322   309  Cn8280      
2004 10  15.16448  20 45 50.33   -18 28 38.9   24.4R 01QW322   309  Cn8280      

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    -1.71       0.00     0.94
  2   0.0000      3.00     1.29      -2.01    -1.07
  3   0.0001     -0.38     1.60      -2.07    -1.09
  4   0.0762  -1834.07     1.44     -29.27    -0.84
  5   0.0762  -1837.30    -1.79     -27.01     1.42
  6   0.0762  -1835.24     1.55     -29.28    -0.83
  7   0.0762  -1838.55    -1.75     -27.31     1.14
  8   0.0763  -1836.74     1.35     -29.42    -0.95
  9   0.0763  -1839.97    -1.88     -27.15     1.32
 10   0.0789  -1895.12     1.57     -30.50    -1.11
 11   0.0789  -1898.03    -1.33     -28.11     1.27
 12   0.0790  -1896.91     1.04     -30.05    -0.64
 13   0.0790  -1899.69    -1.74     -28.31     1.09
 14   0.1444  -3099.51     1.74     -52.44    -1.56
 15   0.1444  -3102.91    -1.66     -50.25     0.63
 16   0.1444  -3099.77     1.81     -52.89    -2.01
 17   0.1444  -3103.23    -1.65     -50.37     0.51
 18   0.1444  -3100.07     1.68     -52.92    -2.03
 19   0.1444  -3103.26    -1.51     -50.47     0.42
 20   0.1472  -3139.06     1.71     -52.71    -0.96
 21   0.1472  -3142.48    -1.71     -50.61     1.14
 22   0.1474  -3142.35     1.27     -53.02    -1.22
 23   0.1474  -3145.22    -1.60     -51.06     0.74
 24   0.8516   7466.93     0.92    -313.91    -0.43
 25   0.8516   7464.34    -1.67    -311.45     2.03
 26   0.8542   7435.89     1.74    -315.70    -1.00
 27   0.8542   7433.06    -1.09    -313.59     1.11
 28   0.8542   7435.42     1.88    -315.78    -1.06
 29   0.8542   7432.23    -1.31    -313.37     1.35
 30   0.8543   7434.87     1.92    -315.64    -0.89
 31   0.8543   7431.54    -1.41    -313.19     1.56
 32   0.8627   7325.75     1.44    -319.63    -1.04
 33   0.8627   7323.14    -1.17    -317.27     1.32
 34   0.8627   7325.48     1.60    -319.55    -0.95
 35   0.8627   7322.81    -1.07    -317.38     1.22
 36   1.9412  10328.23     0.66    -728.99    -0.59
 37   1.9412  10325.79    -1.78    -726.55     1.84
 38   1.9414  10324.66     0.62    -729.04    -0.60
 39   1.9414  10322.49    -1.54    -726.69     1.76
 40   1.9440  10265.98     0.77    -730.29    -0.68
 41   1.9440  10263.92    -1.28    -728.07     1.54
 42   2.2521   5041.02     0.92    -819.03    -1.19
 43   2.2521   5039.12    -0.98    -816.76     1.07
 44   2.2550   5050.31     0.83    -819.52    -1.19
 45   2.2550   5048.52    -0.96    -817.39     0.94
 46   3.2103   9466.61     0.70   -1181.37    -1.21
 47   3.2103   9465.57    -0.34   -1179.21     0.94
 48   3.2107   9464.50     0.74   -1181.52    -1.36
 49   3.2107   9463.44    -0.32   -1179.46     0.69
 50   3.2134   9450.73     0.43   -1181.59    -1.05
 51   3.2134   9449.86    -0.44   -1179.90     0.64
 52   3.2190   9427.76     0.84   -1182.90    -1.59
 53   3.2190   9426.56    -0.36   -1180.80     0.50

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.

01QW322    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.037    44.048    44.026
ecceobj         0.021     0.023     0.020
incobj          4.807     4.808     4.807
qmin           42.318    42.292    42.366
qmax           45.912    46.008    45.855
amean          44.056    44.068    44.045
amin           43.719    43.731    43.711
amax           44.398    44.413    44.384
emean           0.021     0.022     0.019
emin            0.006     0.007     0.004
emax            0.035     0.036     0.034
imean           3.496     3.493     3.498
imin            2.932     2.931     2.933
imax            4.139     4.136     4.141
excite_mean     0.065     0.065     0.064
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       183.6     183.6     184.0
kozaiamp        179.9     180.0     180.0