Orbit Fit and Astrometric record for 00QL226

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: 00QL226   
# Created Fri Mar 29 01:10:20 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     23 observations of     23
# Arc:  19.17y
# First observation: 2000/08/29
#  Last observation: 2019/11/01
# Chi-squared of fit:    14.02 DOF:     40 RMS:  0.14
# Min/Max residuals:    -0.28    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.775232E-05  3.046064E-02 -8.449176E-07 -1.310405E-03  2.770806E-02 -3.339174E-03
# Covariance matrix:
  2.0979E-13 -2.4044E-14 -5.4037E-16  5.5698E-16  7.5515E-16 -1.9879E-14
 -2.4044E-14  1.6218E-14  6.1341E-16 -6.3470E-16  2.9170E-14  2.2247E-14
 -5.4037E-16  6.1341E-16  1.9749E-13 -1.1611E-14  7.0806E-16  9.2470E-16
  5.5698E-16 -6.3470E-16 -1.1611E-14  9.3384E-16 -7.5658E-16 -9.5505E-16
  7.5515E-16  2.9170E-14  7.0806E-16 -7.5658E-16  3.2930E-13  2.2537E-14
 -1.9879E-14  2.2247E-14  9.2470E-16 -9.5505E-16  2.2537E-14  3.3764E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.393354  -21.187404    0.053731    0.006736   -1.005119  2451785.653693
# Heliocentric elements and errors
Epoch:              2451786.5000  =  2000/08/30
Mean Anomaly:          330.47455 +/-     0.009
Argument of Peri:      214.05423 +/-     0.012
Long of Asc Node:      167.58003 +/-     0.000
Inclination:             2.48807 +/-     0.000
Eccentricity:         0.19012288 +/-    0.0001
Semi-Major Axis:     43.85119315 +/-    0.0044
Time of Perihelion: 2460485.4034 +/-      14.9
Perihelion:          35.51407802 +/-    0.0043
Aphelion:            52.18830827 +/-    0.0058
Period (y)              290.3891 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.57378866 +/-    0.0007
Ecliptic Y          -13.45197383 +/-    0.0003
Ecliptic Z            0.24772954 +/-    0.0000
Ecliptic XDOT         0.00077370 +/-    0.0000
Ecliptic YDOT         0.00293059 +/-    0.0000
Ecliptic ZDOT        -0.00013159 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.09944892 +/-    0.0007
Geocenter to KBO     36.09068623 +/-    0.0007
# Hcoef:  8.29

The following table shows the complete astrometric record for 00QL226. 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 (00QL226) followed by the observatory code and reference code for the source of the astrometry.

2000 08  29.15295  22 41 05.75   -07 54 03.7         00QL226   809  Cb8401      
2000 08  29.25209  22 41 05.24   -07 54 07.0         00QL226   809  Cb8401      
2000 08  30.13214  22 41 00.88   -07 54 33.5         00QL226   809  Cb8401      
2000 08  30.21740  22 41 00.46   -07 54 36.4   23.7R 00QL226   809  Cb8401      
2000 08  30.30047  22 41 00.02   -07 54 38.7         00QL226   809  Cb8401      
2000 08  30.34795  22 40 59.78   -07 54 40.5         00QL226   809  Cb8401      
2000 08  30.39124  22 40 59.56   -07 54 41.4         00QL226   809  Cb8401      
2013 09  30.16242  00 07 01.563  +00 04 25.99  23.3r 00QL226   W84  C~52RV      
2013 10  13.09753  00 05 57.930  -00 02 34.74  22.9z 00QL226   W84  C~52RV      
2013 10  13.11488  00 05 57.864  -00 02 35.31  23.9i 00QL226   W84  C~52RV      
2013 11  22.07119  00 03 34.485  -00 18 10.89  23.4i 00QL226   W84  C~52RV      
2013 11  23.09553  00 03 32.440  -00 18 23.69  23.4i 00QL226   W84  C~52RV      
2016 09  09.33021  00 29 43.975  +02 16 30.35  23.8r 00QL226   W84  C~52RV      
2017 08  22.32182  00 38 01.344  +03 05 11.54  23.7i 00QL226   W84  C~52RV      
2017 09  27.19789  00 35 20.055  +02 47 06.54  23.2i 00QL226   W84  C~52RV      
2017 09  27.19925  00 35 20.041  +02 47 06.52  23.9r 00QL226   W84  C~52RV      
2018 09  09.25958  00 43 52.538  +03 37 02.12  22.8z 00QL226   W84  C~52RV      
2018 10  10.23897  00 41 19.083  +03 20 12.23  22.6i 00QL226   W84  C~52RV      
2018 10  18.15486  00 40 39.222  +03 15 55.00  22.8z 00QL226   W84  C~52RV      
2019 11  01.32124  00 46 38.25   +03 49 00.0   25.7g 00QL226   T09  C~7b9u      
2019 11  01.34266  00 46 38.16   +03 48 59.4   25.2g 00QL226   T09  C~7b9u      
2019 11  01.42186  00 46 37.80   +03 48 57.1   24.9g 00QL226   T09  C~7b9u      
2019 11  01.50543  00 46 37.41   +03 48 54.8   24.6g 00QL226   T09  C~7b9u      

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    -0.08       0.00    -0.01
     2   0.0003      0.00    -0.19       0.00    -0.27
     3   0.0027      0.00     0.06       0.00     0.23
     4   0.0029      0.00     0.25       0.00    -0.05
     5   0.0031      0.00    -0.03       0.00     0.19
     6   0.0033      0.00    -0.03       0.00    -0.15
     7   0.0034      0.00    -0.07       0.00     0.27
     8  13.0870      0.00     0.23       0.00    -0.16
     9  13.1224      0.00    -0.25       0.00    -0.05
    10  13.1224      0.00     0.02       0.00    -0.08
    11  13.2318      0.00     0.15       0.00    -0.28
    12  13.2346      0.00     0.06       0.00    -0.06
    13  16.0306      0.00     0.05       0.00     0.10
    14  16.9806      0.00    -0.11       0.00    -0.02
    15  17.0788      0.00     0.13       0.00    -0.08
    16  17.0788      0.00     0.03       0.00    -0.05
    17  18.0290      0.00     0.13       0.00    -0.12
    18  18.1139      0.00    -0.07       0.00    -0.03
    19  18.1355      0.00    -0.02       0.00     0.23
    20  19.1736      0.00    -0.15       0.00     0.11
    21  19.1737      0.00    -0.03       0.00     0.12
    22  19.1739      0.00     0.04       0.00     0.06
    23  19.1741      0.00    -0.08       0.00     0.14

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.

00QL226    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE

axisobj        43.952    43.952    43.952
ecceobj         0.191     0.191     0.191
incobj          2.487     2.487     2.487
qmin           35.017    35.025    35.012
qmax           53.051    53.020    53.069
amean          43.727    43.727    43.727
amin           43.245    43.244    43.245
amax           44.267    44.267    44.267
emean           0.183     0.183     0.183
emin            0.168     0.168     0.168
emax            0.199     0.198     0.199
imean           3.282     3.285     3.283
imin            2.170     2.170     2.170
imax            4.553     4.551     4.556
excite_mean     0.192     0.192     0.192
fracstop        1.000     1.000     1.000
cjmean          3.054     3.054     3.054

libcent 0       182.6     181.9     182.6
libamp  0       108.0     108.6     108.0
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       215.9     216.0     215.8
kozaiamp        180.0     180.0     179.9