Orbit Fit and Astrometric record for 00QC226

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: 00QC226   
# Created Tue Dec 12 02:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:  10.05y
# First observation: 2000/08/29
#  Last observation: 2010/09/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.000281   0.024268   0.000014  -0.000596   0.023709   0.000000
# Chi-squared of fit:    48.35 DOF:   42 RMS:  0.25
# Min/Max residuals:    -0.50    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.478650E-05  2.408361E-02  1.908463E-06 -5.889698E-04  2.432880E-02  6.576558E-04
# Covariance matrix:
  1.5250E-13 -6.3569E-14 -1.5790E-15  1.2093E-15  6.3447E-14 -2.1543E-13
 -6.3569E-14  5.6440E-14  1.4025E-15 -1.2757E-15 -3.3918E-14  2.3492E-13
 -1.5790E-15  1.4025E-15  1.0860E-13 -1.8725E-14 -4.2810E-15  6.7600E-15
  1.2093E-15 -1.2757E-15 -1.8725E-14  7.4365E-15  1.3489E-15 -6.1173E-15
  6.3447E-14 -3.3918E-14 -4.2810E-15  1.3489E-15  3.8679E-13 -1.6700E-13
 -2.1543E-13  2.3492E-13  6.7600E-15 -6.1173E-15 -1.6700E-13  1.1255E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.315716  -22.086996    0.038878   -0.040809   -1.005010  2451785.599403
# Heliocentric elements and errors
Epoch:              2451780.5000  =  2000/08/24
Mean Anomaly:           24.35657 +/-     0.039
Argument of Peri:      211.04150 +/-     0.044
Long of Asc Node:       99.78608 +/-     0.004
Inclination:             2.66215 +/-     0.000
Eccentricity:         0.05355765 +/-    0.0001
Semi-Major Axis:     44.24742843 +/-    0.0052
Time of Perihelion: 2444506.9892 +/-      11.6
Perihelion:          41.87764025 +/-    0.0063
Aphelion:            46.61721661 +/-    0.0067
Period (y)              294.3339 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.97925323 +/-    0.0010
Ecliptic Y          -15.85221872 +/-    0.0004
Ecliptic Z           -1.66075387 +/-    0.0000
Ecliptic XDOT         0.00107783 +/-    0.0000
Ecliptic YDOT         0.00248985 +/-    0.0000
Ecliptic ZDOT        -0.00006906 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.11214937 +/-    0.0009
Geocenter to KBO     41.10354748 +/-    0.0011
# Hcoef:  6.55

The following table shows the complete astrometric record for 00QC226. 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 (00QC226) followed by the observatory code and reference code for the source of the astrometry.

2000 08  29.09866  22 41 49.86   -10 44 59.0         00QC226   809  Cb8401      
2000 08  29.19350  22 41 49.40   -10 45 01.2         00QC226   809  Cb8401      
2000 08  29.29313  22 41 48.98   -10 45 04.1         00QC226   809  Cb8401      
2000 08  29.34946  22 41 48.70   -10 45 05.9         00QC226   809  Cb8401      
2000 08  30.08073  22 41 45.40   -10 45 25.9   22.3R 00QC226   809  Cb8401      
2000 08  30.17392  22 41 44.99   -10 45 28.1         00QC226   809  Cb8401      
2000 08  30.25186  22 41 44.62   -10 45 30.2         00QC226   809  Cb8401      
2000 11  27.10159  22 37 46.66   -11 06 07.3   23.3R 00QC226   695  Cc3790      
2000 11  28.11804  22 37 47.40   -11 05 59.7   22.7R 00QC226   695  Cc3790      
2000 11  29.11569  22 37 48.20   -11 05 51.7   23.1R 00QC226   695  Cc3790      
2001 07  18.50940  22 49 47.689  -09 57 59.43        00QC226   568  Cl5597      
2001 07  19.50863  22 49 44.752  -09 58 20.27  22.6R 00QC226   568  Cl5597      
2003 08  23.16604  22 57 58.63   -09 13 11.4   21.8R 00QC226   807  Ci3259      
2003 08  23.23473  22 57 58.33   -09 13 13.2         00QC226   807  Ci3259      
2003 08  24.25367  22 57 53.91   -09 13 41.5         00QC226   807  Ci3259      
2004 08  14.30151  23 03 42.23   -08 39 28.5   22.0R 00QC226   807  Cl2558      
2004 08  14.40839  23 03 41.78   -08 39 31.7         00QC226   807  Cl2558      
2004 08  15.35259  23 03 37.91   -08 39 56.6         00QC226   807  Cl2558      
2004 09  11.13251  23 01 41.20   -08 52 20.8   22.6R 00QC226   304  Cl4137      
2004 09  11.13514  23 01 41.18   -08 52 20.8         00QC226   304  Cl4137      
2004 09  11.16635  23 01 41.05   -08 52 21.7         00QC226   304  Cl4137      
2004 09  11.16874  23 01 41.03   -08 52 21.8         00QC226   304  Cl4137      
2010 09  16.32138  23 32 00.40   -05 50 17.9   21.9R 00QC226   688  C~0NFG      
2010 09  16.36962  23 32 00.22   -05 50 19.2         00QC226   688  C~0NFG      

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     0.18       0.00    -0.47
  2   0.0003     -7.11    -0.01       0.50     0.04
  3   0.0005    -13.93     0.42       0.14    -0.34
  4   0.0007    -18.43     0.02       0.02    -0.46
  5   0.0027    -71.02    -0.23      -0.28    -0.39
  6   0.0029    -77.44     0.14      -0.05    -0.16
  7   0.0032    -83.28    -0.02       0.05    -0.07
  8   0.2464  -3796.76    -0.41     161.84     0.32
  9   0.2492  -3783.82    -0.01     164.84     0.21
 10   0.2519  -3769.91     0.07     167.89     0.20
 11   0.8855   7596.67    -0.06     -55.60     0.13
 12   0.8882   7548.55    -0.33     -58.34    -0.02
 13   2.9817  15358.21     0.11    -360.53     0.26
 14   2.9819  15353.39     0.19    -360.48     0.34
 15   2.9847  15281.70     0.27    -361.29     0.31
 16   3.9595  20878.18     0.12    -474.14    -0.13
 17   3.9598  20870.71    -0.17    -474.49    -0.38
 18   3.9624  20807.52    -0.50    -475.03     0.30
 19   4.0357  18906.63     0.09    -486.56     0.19
 20   4.0357  18906.36     0.00    -486.45     0.30
 21   4.0358  18904.21     0.14    -486.53     0.20
 22   4.0358  18903.90     0.01    -486.51     0.22
 23  10.0485  48913.87    -0.28   -1230.28    -0.20
 24  10.0487  48910.72     0.27   -1230.38    -0.37

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.

00QC226    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.343    44.359    44.328
ecceobj         0.056     0.056     0.055
incobj          2.662     2.662     2.662
qmin           41.182    41.187    41.199
qmax           47.318    47.360    47.315
amean          44.160    44.174    44.144
amin           43.815    43.828    43.805
amax           44.527    44.543    44.507
emean           0.049     0.049     0.048
emin            0.032     0.033     0.032
emax            0.063     0.064     0.063
imean           1.048     1.046     1.051
imin            0.387     0.390     0.385
imax            1.613     1.611     1.617
excite_mean     0.053     0.053     0.052
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       160.1     159.8     160.9
kozaiamp        180.0     180.0     180.0