Orbit Fit and Astrometric record for 04QE29

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: 04QE29    
# Created Mon Dec  6 02:10:04 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     31 observations of     31
# Arc:  14.27y
# First observation: 2004/08/19
#  Last observation: 2018/11/26
# Chi-squared of fit:    21.28 DOF:     56 RMS:  0.15
# Min/Max residuals:    -0.29    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.619523E-05  2.676467E-02  7.575800E-06  1.198571E-02  2.742721E-02  1.091281E-04
# Covariance matrix:
  1.6447E-13 -3.4564E-14  9.6359E-15 -1.1890E-14  5.2091E-14 -7.2198E-14
 -3.4564E-14  3.5015E-14 -1.2527E-14  1.5531E-14  1.9699E-14  9.1425E-14
  9.6359E-15 -1.2527E-14  1.4000E-13 -1.6860E-14 -2.8379E-15 -3.4594E-14
 -1.1890E-14  1.5531E-14 -1.6860E-14  8.6126E-15  3.8098E-15  4.2852E-14
  5.2091E-14  1.9699E-14 -2.8379E-15  3.8098E-15  3.5299E-13  1.0990E-14
 -7.2198E-14  9.1425E-14 -3.4594E-14  4.2852E-14  1.0990E-14  2.5368E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.096459  -42.596422   -0.164259   -0.001629   -1.002756  2453236.856773
# Heliocentric elements and errors
Epoch:              2453236.5000  =  2004/08/19
Mean Anomaly:            5.75497 +/-     0.011
Argument of Peri:      352.98086 +/-     0.013
Long of Asc Node:      317.86094 +/-     0.000
Inclination:            24.17861 +/-     0.000
Eccentricity:         0.08100593 +/-    0.0001
Semi-Major Axis:     40.73983981 +/-    0.0039
Time of Perihelion: 2451718.1632 +/-       2.9
Perihelion:          37.43967105 +/-    0.0045
Aphelion:            44.04000857 +/-    0.0051
Period (y)              260.0382 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.68532992 +/-    0.0006
Ecliptic Y          -25.23336742 +/-    0.0005
Ecliptic Z           -0.06107409 +/-    0.0000
Ecliptic XDOT         0.00181590 +/-    0.0000
Ecliptic YDOT         0.00195101 +/-    0.0000
Ecliptic ZDOT         0.00119653 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.45935994 +/-    0.0006
Geocenter to KBO     36.46017532 +/-    0.0008
# Hcoef:  7.40

The following table shows the complete astrometric record for 04QE29. 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 (04QE29) followed by the observatory code and reference code for the source of the astrometry.

2004 08  19.35603  21 19 31.38   -15 42 36.7   23.0g 04QE29    568  C~0VDs      
2004 08  19.38221  21 19 31.26   -15 42 37.0   23.1g 04QE29    568  C~0VDs      
2004 08  19.41320  21 19 31.08   -15 42 37.6   23.0g 04QE29    568  C~0VDs      
2004 08  20.38844  21 19 25.80   -15 42 54.8   23.2g 04QE29    568  C~0VDs      
2004 10  13.23431  21 15 50.72   -15 52 56.5   23.0i 04QE29    568  C~0VDs      
2004 10  13.28465  21 15 50.59   -15 52 56.7   23.7i 04QE29    568  C~0VDs      
2004 10  13.35303  21 15 50.50   -15 52 56.7   23.7i 04QE29    568  C~0VDs      
2005 10  04.13265  21 21 20.18   -14 46 00.0   23. R 04QE29    675  C~0VDs      
2005 10  04.18762  21 21 20.02   -14 46 00.4         04QE29    675  C~0VDs      
2006 07  20.44113  21 32 27.98   -13 18 09.1   23.5r 04QE29    568  C~0VDs      
2006 07  20.46751  21 32 27.84   -13 18 09.5   23.4r 04QE29    568  C~0VDs      
2006 07  20.49397  21 32 27.73   -13 18 09.9   23.4r 04QE29    568  C~0VDs      
2014 09  26.17793  22 06 10.14   -04 30 33.4   22.7R 04QE29    695  C~1LJL      
2014 09  26.23944  22 06 09.88   -04 30 34.8         04QE29    695  C~1LJL      
2014 09  26.29814  22 06 09.61   -04 30 36.3         04QE29    695  C~1LJL      
2014 10  22.08864  22 04 45.39   -04 39 07.6   22.7R 04QE29    G37  C~1BxG      
2014 10  22.19695  22 04 45.13   -04 39 09.0         04QE29    G37  C~1BxG      
2016 09  26.09223  22 15 38.428  -02 12 53.47  23.4i 04QE29    W84  C~4yDd      
2016 09  26.09361  22 15 38.410  -02 12 53.39  23.0r 04QE29    W84  C~4yDd      
2016 09  26.09498  22 15 38.418  -02 12 53.29  23.6g 04QE29    W84  C~4yDd      
2016 09  29.08314  22 15 25.848  -02 14 07.82  22.3z 04QE29    W84  C~4yDd      
2017 09  27.09709  22 20 18.873  -01 04 20.97  23.4r 04QE29    W84  C~4yDd      
2017 09  27.09846  22 20 18.870  -01 04 21.13  23.2i 04QE29    W84  C~4yDd      
2017 10  10.10988  22 19 28.101  -01 09 46.77  23.1g 04QE29    W84  C~4yDd      
2017 10  21.06262  22 18 54.795  -01 13 51.73  23.0r 04QE29    W84  C~4yDd      
2017 10  21.06399  22 18 54.790  -01 13 51.72  23.1i 04QE29    W84  C~4yDd      
2017 10  22.05321  22 18 52.280  -01 14 11.78  24.1g 04QE29    W84  C~4yDd      
2018 09  11.24545  22 26 17.939  +00 11 36.79  23.3r 04QE29    W84  C~4yDd      
2018 09  11.24683  22 26 17.932  +00 11 36.76  22.7i 04QE29    W84  C~4yDd      
2018 09  11.24821  22 26 17.915  +00 11 36.80  23.5g 04QE29    W84  C~4yDd      
2018 11  26.03549  22 23 00.282  -00 14 09.35  22.4z 04QE29    W84  C~4yDd      

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    -0.11       0.00    -0.18
     2   0.0001      0.00     0.25       0.00    -0.01
     3   0.0002      0.00     0.10       0.00    -0.06
     4   0.0028      0.00    -0.29       0.00     0.01
     5   0.1502      0.00     0.18       0.00     0.12
     6   0.1504      0.00    -0.28       0.00     0.00
     7   0.1506      0.00     0.39       0.00     0.10
     8   1.1246      0.00    -0.21       0.00    -0.05
     9   1.1248      0.00    -0.17       0.00    -0.04
    10   1.9167      0.00     0.08       0.00     0.00
    11   1.9168      0.00    -0.05       0.00     0.03
    12   1.9169      0.00     0.28       0.00     0.05
    13  10.1022      0.00    -0.00       0.00     0.07
    14  10.1024      0.00     0.04       0.00     0.08
    15  10.1025      0.00    -0.25       0.00    -0.07
    16  10.1731      0.00     0.09       0.00     0.09
    17  10.1734      0.00    -0.09       0.00     0.38
    18  12.1033      0.00     0.06       0.00    -0.24
    19  12.1033      0.00    -0.12       0.00    -0.13
    20  12.1033      0.00     0.09       0.00     0.01
    21  12.1115      0.00    -0.10       0.00    -0.24
    22  13.1054      0.00    -0.03       0.00     0.02
    23  13.1054      0.00     0.02       0.00    -0.10
    24  13.1410      0.00     0.05       0.00    -0.23
    25  13.1710      0.00     0.01       0.00    -0.05
    26  13.1710      0.00    -0.01       0.00    -0.01
    27  13.1737      0.00     0.12       0.00     0.24
    28  14.0613      0.00     0.01       0.00     0.02
    29  14.0613      0.00     0.01       0.00     0.03
    30  14.0613      0.00    -0.14       0.00     0.11
    31  14.2688      0.00     0.23       0.00     0.11

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.

04QE29    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.969    40.969    40.969
ecceobj         0.086     0.086     0.086
incobj         24.110    24.110    24.110
qmin           36.595    36.596    36.593
qmax           45.523    45.523    45.522
amean          40.942    40.942    40.942
amin           40.623    40.622    40.622
amax           41.291    41.291    41.291
emean           0.090     0.090     0.090
emin            0.076     0.076     0.076
emax            0.103     0.103     0.103
imean          25.313    25.313    25.313
imin           24.846    24.845    24.846
imax           25.767    25.768    25.767
excite_mean     0.437     0.437     0.437
fracstop        1.000     1.000     1.000
cjmean          2.835     2.835     2.835

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       175.1     175.0     175.0
kozaiamp        179.9     180.0     179.9