Orbit Fit and Astrometric record for 01QF298

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: 01QF298   
# Created Wed Nov 26 02:37:51 2014
# Orbit generated from Bernstein formalism
# Fitting   32 observations of   32
# Arc:   8.31y
# First observation: 2001/05/23
#  Last observation: 2009/09/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.000727   0.020259  -0.000016  -0.008283   0.023224   0.000000
# Chi-squared of fit:   123.44 DOF:   58 RMS:  0.35
# Min/Max residuals:    -0.67    0.70
# Exact a, adot, b, bdot, g, gdot:
  1.272753E-05  1.987338E-02 -4.318865E-06 -8.170304E-03  2.336082E-02  2.111948E-03
# Covariance matrix:
  3.2101E-13 -1.4028E-13 -2.8120E-14  4.7733E-14  1.7702E-13 -7.5123E-13
 -1.4028E-13  1.1844E-13  3.0409E-14 -4.6852E-14 -4.9252E-14  7.5007E-13
 -2.8120E-14  3.0409E-14  8.0946E-14 -2.8719E-14 -6.3757E-15  2.1345E-13
  4.7733E-14 -4.6852E-14 -2.8719E-14  2.8730E-14  1.4806E-14 -3.2474E-13
  1.7702E-13 -4.9252E-14 -6.3757E-15  1.4806E-14  1.5899E-13 -2.2241E-13
 -7.5123E-13  7.5007E-13  2.1345E-13 -3.2474E-13 -2.2241E-13  5.2110E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.052991  -11.917328    0.980124    0.004990    0.278516  2452052.834113
# Heliocentric elements and errors
Epoch:              2452050.5000  =  2001/05/21
Mean Anomaly:          133.29386 +/-     0.066
Argument of Peri:       41.25821 +/-     0.059
Long of Asc Node:      164.19209 +/-     0.000
Inclination:            22.34896 +/-     0.000
Eccentricity:         0.10819784 +/-    0.0000
Semi-Major Axis:     39.39908549 +/-    0.0034
Time of Perihelion: 2418605.1847 +/-      15.9
Perihelion:          35.13618950 +/-    0.0035
Aphelion:            43.66198148 +/-    0.0042
Period (y)              247.3076 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.40562334 +/-    0.0007
Ecliptic Y           -9.73368173 +/-    0.0002
Ecliptic Z           -0.78684894 +/-    0.0000
Ecliptic XDOT         0.00069748 +/-    0.0000
Ecliptic YDOT         0.00223374 +/-    0.0000
Ecliptic ZDOT        -0.00096174 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.54161887 +/-    0.0007
Geocenter to KBO     42.80671925 +/-    0.0007
# Hcoef:  4.73

The following table shows the complete astrometric record for 01QF298. 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 (01QF298) followed by the observatory code and reference code for the source of the astrometry.

2001 05  23.33337  23 17 49.07   -05 40 51.2   21.1R 01QF298   807  Cd7926      
2001 05  23.41349  23 17 49.22   -05 40 50.6         01QF298   807  Cd7926      
2001 08  19.23189  23 16 02.46   -06 01 39.6   20.0R 01QF298   807  Cd7926      
2001 08  19.31453  23 16 02.12   -06 01 42.3         01QF298   807  Cd7926      
2001 08  20.29073  23 15 58.18   -06 02 12.8   20.0R 01QF298   807  Cd7926      
2001 08  20.37625  23 15 57.83   -06 02 15.6         01QF298   807  Cd7926      
2001 09  18.22677  23 13 53.53   -06 17 55.4   21.0R 01QF298   688  Cd7926      
2001 09  18.31522  23 13 53.14   -06 17 58.3         01QF298   688  Cd7926      
2001 10  12.13745  23 12 16.86   -06 29 50.1   19.5  01QF298   304  Ce9410      
2001 10  12.14430  23 12 16.86   -06 29 50.2         01QF298   304  Ce9410      
2001 10  20.21289  23 11 49.63   -06 33 13.3   21.0R 01QF298   695  Ce0366      
2001 10  20.29398  23 11 49.37   -06 33 15.3         01QF298   695  Ce0366      
2001 10  21.12132  23 11 46.81   -06 33 34.5         01QF298   695  Ce0366      
2001 10  23.14153  23 11 40.66   -06 34 21.0   20.5R 01QF298   696  Cd9304      
2001 10  23.20736  23 11 40.49   -06 34 22.5         01QF298   696  Cd9304      
2002 07  13.42659  23 22 58.97   -05 44 43.2   21.3R 01QF298   695  Cg1155      
2002 07  13.47309  23 22 58.88   -05 44 44.2   21.1R 01QF298   695  Cg1155      
2002 09  07.92421  23 19 45.57   -06 11 14.7         01QF298   246  Cg3218      
2002 09  07.92742  23 19 45.52   -06 11 15.9         01QF298   246  Cg3218      
2002 09  07.93074  23 19 45.49   -06 11 15.1         01QF298   246  Cg3218      
2002 09  12.28664  23 19 26.38   -06 13 39.8   21.5  01QF298   644  Ci9379      
2002 09  12.35240  23 19 26.10   -06 13 41.2         01QF298   568  Cg1155      
2002 09  12.41066  23 19 25.84   -06 13 43.1   21.2R 01QF298   568  Cg1155      
2002 09  13.42385  23 19 21.43   -06 14 16.6   21.1R 01QF298   568  Cg1155      
2004 05  27.34639  23 32 43.84   -05 37 08.3   20.6R 01QF298   304  Ck8659      
2004 05  27.38316  23 32 43.91   -05 37 08.4         01QF298   304  Ck8659      
2006 06  12.15634  23 42 57.01   -05 33 42.6   21.0R 01QF298   250  S~06AQ      
2006 06  12.16074  23 42 57.02   -05 33 42.7         01QF298   250  S~06AQ      
2006 06  12.16513  23 42 57.02   -05 33 42.6         01QF298   250  S~06AQ      
2006 06  12.16953  23 42 57.03   -05 33 42.6         01QF298   250  S~06AQ      
2009 08  22.18280  23 56 03.22   -05 50 53.6   21.8V 01QF298   950  C~0C7U      
2009 09  14.99097  23 54 26.759  -06 04 07.33  21.8V 01QF298   950  C~0C7U      

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     0.15       0.00    -0.25
  2   0.0002      2.30    -0.25      -0.32    -0.11
  3   0.2407  -1952.22     0.13    -527.53     0.15
  4   0.2409  -1957.94     0.06    -528.03     0.05
  5   0.2436  -2023.96     0.07    -533.17     0.16
  6   0.2438  -2029.86     0.06    -533.71     0.04
  7   0.3228  -4103.78    -0.29    -676.38    -0.13
  8   0.3230  -4110.27    -0.30    -676.79    -0.18
  9   0.3882  -5710.26    -0.45    -774.11     0.12
 10   0.3883  -5710.30    -0.07    -774.21     0.05
 11   0.4103  -6163.52     0.48    -803.65     0.03
 12   0.4106  -6167.87     0.46    -803.99    -0.06
 13   0.4128  -6210.52     0.63    -806.86     0.03
 14   0.4184  -6313.13     0.10    -814.12    -0.24
 15   0.4185  -6316.05     0.50    -814.51    -0.44
 16   1.1392   4164.63    -0.16   -2027.63     0.02
 17   1.1393   4163.00    -0.23   -2028.03    -0.08
 18   1.2939    885.48     0.44   -2358.56     0.44
 19   1.2939    884.32    -0.48   -2359.37    -0.36
 20   1.2939    884.22    -0.33   -2358.46     0.57
 21   1.3058    565.32    -0.65   -2379.92    -0.30
 22   1.3060    560.93    -0.30   -2379.57     0.34
 23   1.3062    556.61    -0.28   -2379.80     0.35
 24   1.3089    482.98     0.18   -2384.86    -0.04
 25   3.0117  12380.65    -0.40   -5065.64    -0.19
 26   3.0118  12381.57    -0.67   -5066.15    -0.42
 27   5.0536  20922.11     0.63   -8556.41     0.24
 28   5.0536  20922.21     0.66   -8556.56     0.12
 29   5.0536  20922.25     0.63   -8556.47     0.26
 30   5.0536  20922.39     0.70   -8556.53     0.24
 31   8.2487  31446.54    -0.32  -14338.50     0.05
 32   8.3139  29769.78    -0.64  -14472.66    -0.47

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.

01QF298    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.544    39.544    39.544
ecceobj         0.106     0.106     0.106
incobj         22.302    22.302    22.302
qmin           33.266    33.264    33.266
qmax           45.895    45.895    45.896
amean          39.457    39.457    39.457
amin           39.115    39.115    39.115
amax           39.817    39.816    39.817
emean           0.118     0.118     0.118
emin            0.082     0.082     0.082
emax            0.155     0.155     0.155
imean          21.684    21.684    21.684
imin           21.049    21.049    21.049
imax           22.342    22.343    22.342
excite_mean     0.388     0.388     0.388
fracstop        1.000     1.000     1.000
cjmean          2.875     2.875     2.875

libcent 0       178.9     178.9     178.9
libamp  0        53.7      53.7      53.8
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       180.0     180.0     179.9
kozaiamp        180.0     180.0     180.0