Orbit Fit and Astrometric record for 04QQ26

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: 04QQ26    
# Created Tue Oct 24 01:37:32 2017
# Orbit generated from Bernstein formalism
# Fitting   55 observations of   55
# Arc:  10.01y
# First observation: 2004/08/17
#  Last observation: 2014/08/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.005740   0.081528  -0.003049   0.031314   0.043670   0.000000
# Chi-squared of fit:   176.23 DOF:  104 RMS:  0.32
# Min/Max residuals:    -1.00    0.54
# Exact a, adot, b, bdot, g, gdot:
  2.337731E-05  7.039388E-02  8.303268E-06  2.723974E-02  4.976319E-02 -2.585771E-04
# Covariance matrix:
  1.0615E-13 -4.2312E-14  1.5461E-14 -1.0779E-14 -6.2733E-17 -3.9033E-14
 -4.2312E-14  4.3804E-14 -1.4150E-14  1.3526E-14 -3.4476E-14  4.8290E-14
  1.5461E-14 -1.4150E-14  7.3776E-14 -1.8558E-14  5.0242E-15 -1.8341E-14
 -1.0779E-14  1.3526E-14 -1.8558E-14  8.7022E-15 -1.0384E-14  1.6644E-14
 -6.2733E-17 -3.4476E-14  5.0242E-15 -1.0384E-14  6.4881E-14 -3.6306E-14
 -3.9033E-14  4.8290E-14 -1.8341E-14  1.6644E-14 -3.6306E-14  5.9545E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.592009 -153.010164   -0.900054   -0.037760    0.470860  2453234.745969
# Heliocentric elements and errors
Epoch:              2453230.5000  =  2004/08/13
Mean Anomaly:           13.00042 +/-     0.001
Argument of Peri:      355.06244 +/-     0.002
Long of Asc Node:      197.52987 +/-     0.000
Inclination:            21.42533 +/-     0.000
Eccentricity:         0.15324849 +/-    0.0000
Semi-Major Axis:     23.05478110 +/-    0.0007
Time of Perihelion: 2451770.3592 +/-       0.1
Perihelion:          19.52167061 +/-    0.0008
Aphelion:            26.58789160 +/-    0.0010
Period (y)              110.7005 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.02356560 +/-    0.0001
Ecliptic Y           -9.67735294 +/-    0.0000
Ecliptic Z            1.60901647 +/-    0.0000
Ecliptic XDOT         0.00187529 +/-    0.0000
Ecliptic YDOT        -0.00339721 +/-    0.0000
Ecliptic ZDOT         0.00149282 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   19.64794848 +/-    0.0001
Geocenter to KBO     20.09517341 +/-    0.0001
# Hcoef:  9.54

The following table shows the complete astrometric record for 04QQ26. 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 (04QQ26) followed by the observatory code and reference code for the source of the astrometry.

2004 08  17.245226 13 46 49.990  -06 06 47.11  22.5R 04QQ26    568  Cr7042      
2004 08  17.250818 13 46 50.035  -06 06 47.43  22.5R 04QQ26    568  Cr7042      
2004 08  17.256398 13 46 50.080  -06 06 47.66  22.5R 04QQ26    568  Cr7042      
2004 08  19.239096 13 47 05.745  -06 08 10.03  23.0  04QQ26    568  Cr7042      
2004 08  19.249891 13 47 05.830  -06 08 10.70  23.7  04QQ26    568  Cr7042      
2004 08  19.260848 13 47 05.903  -06 08 11.11  23.4  04QQ26    568  Cr7042      
2004 08  21.250134 13 47 22.254  -06 09 36.48  23.7  04QQ26    568  Cr7042      
2004 08  21.261069 13 47 22.334  -06 09 37.06        04QQ26    568  Cr7042      
2004 08  23.248911 13 47 39.236  -06 11 05.62        04QQ26    568  Cr7042      
2004 08  23.253883 13 47 39.290  -06 11 05.81  23.3  04QQ26    568  Cr7042      
2004 08  23.258984 13 47 39.345  -06 11 05.97        04QQ26    568  Cr7042      
2006 04  29.561584 14 26 57.863  -06 23 49.57  21.9R 04QQ26    568  Ct2200      
2006 04  29.588941 14 26 57.615  -06 23 47.89  21.9R 04QQ26    568  Ct2200      
2006 04  30.533561 14 26 49.229  -06 22 50.80  22.0R 04QQ26    568  Ct2200      
2006 04  30.575337 14 26 48.853  -06 22 48.31  22.1R 04QQ26    568  Ct2200      
2006 07  27.300962 14 20 01.883  -05 49 01.03  22.0R 04QQ26    568  Ct2200      
2006 07  27.319348 14 20 01.917  -05 49 01.42  22.0R 04QQ26    568  Ct2200      
2006 07  27.339338 14 20 01.963  -05 49 01.90  22.0R 04QQ26    568  Ct2200      
2007 04  15.288727 14 47 28.90   -06 30 42.6   22.7V 04QQ26    645  C~1rRC      
2007 04  15.289549 14 47 28.89   -06 30 42.6         04QQ26    645  C~1rRC      
2007 04  15.292037 14 47 28.88   -06 30 42.4         04QQ26    645  C~1rRC      
2007 04  20.31546  14 46 46.64   -06 25 24.9   21.6r 04QQ26    705  C~0nKE      
2007 04  20.315802 14 46 46.64   -06 25 25.1   22.3V 04QQ26    645  C~1rRC      
2007 04  20.31629  14 46 46.64   -06 25 24.7         04QQ26    705  C~0nKE      
2007 04  20.316631 14 46 46.63   -06 25 25.0   22.2V 04QQ26    645  C~1rRC      
2007 04  20.31878  14 46 46.62   -06 25 24.5         04QQ26    705  C~0nKE      
2007 04  20.319119 14 46 46.61   -06 25 24.9   23.1V 04QQ26    645  C~1rRC      
2007 06  14.22069  14 39 20.59   -05 42 44.6   23.1R 04QQ26    688  Cv1058      
2007 06  14.25391  14 39 20.38   -05 42 43.8         04QQ26    688  Cv1058      
2007 06  15.295645 14 39 14.293  -05 42 19.94  22.2R 04QQ26    568  Cv1058      
2007 06  15.297767 14 39 14.280  -05 42 19.88  22.2R 04QQ26    568  Cv1058      
2008 04  21.500124 15 04 41.834  -06 12 39.50        04QQ26    568  Cy9806      
2008 04  21.501656 15 04 41.831  -06 12 39.22        04QQ26    568  Cy9806      
2008 04  21.502874 15 04 41.818  -06 12 39.29        04QQ26    568  Cy9806      
2008 04  21.504058 15 04 41.808  -06 12 39.14        04QQ26    568  Cy9806      
2008 04  21.505084 15 04 41.788  -06 12 39.03  22.8R 04QQ26    568  Cy9806      
2008 04  21.506279 15 04 41.787  -06 12 39.11        04QQ26    568  Cy9806      
2008 04  21.507338 15 04 41.785  -06 12 39.15        04QQ26    568  Cy9806      
2008 04  21.508413 15 04 41.759  -06 12 39.07        04QQ26    568  Cy9806      
2008 04  21.509656 15 04 41.747  -06 12 39.05        04QQ26    568  Cy9806      
2008 04  21.510815 15 04 41.745  -06 12 39.01        04QQ26    568  Cy9806      
2009 06  02.416704 15 16 35.942  -05 26 18.13  22.3R 04QQ26    568  C~0Dov      
2009 06  02.420601 15 16 35.911  -05 26 18.06  22.4R 04QQ26    568  C~0Dov      
2010 01  21.97894  15 41 10.16   -06 58 12.1         04QQ26    250  S~0M4R      
2010 01  21.98132  15 41 10.18   -06 58 12.0         04QQ26    250  S~0M4R      
2010 01  21.98413  15 41 10.21   -06 58 12.0         04QQ26    250  S~0M4R      
2010 01  21.98652  15 41 10.23   -06 58 12.0         04QQ26    250  S~0M4R      
2010 01  21.99160  15 41 10.23   -06 58 12.0         04QQ26    250  S~0M4R      
2010 01  21.99715  15 41 10.28   -06 58 11.8         04QQ26    250  S~0M4R      
2010 01  22.03505  15 41 10.57   -06 58 11.1         04QQ26    250  S~0M4R      
2010 01  22.04060  15 41 10.62   -06 58 11.1         04QQ26    250  S~0M4R      
2010 02  20.581937 15 43 40.047  -06 41 52.77  23.4R 04QQ26    568  C~0Dov      
2010 07  14.359088 15 29 52.029  -05 04 53.17  22.4R 04QQ26    568  C~0M4R      
2014 08  22.314405 16 34 54.786  -04 13 42.72  22.9R 04QQ26    568  C~17jp      
2014 08  22.357948 16 34 54.804  -04 13 44.59  22.9R 04QQ26    568  C~17jp      

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    -0.21       0.00     0.07
  2   0.0000      0.74    -0.14      -0.06    -0.00
  3   0.0000      1.45    -0.11      -0.04     0.01
  4   0.0055    249.10    -0.08       6.28     0.01
  5   0.0055    250.52    -0.02       6.10    -0.20
  6   0.0055    251.69    -0.23       6.11    -0.23
  7   0.0110    509.95     0.02      13.23     0.11
  8   0.0110    511.28    -0.09      13.11    -0.04
  9   0.0164    778.35    -0.14      20.14    -0.27
 10   0.0165    779.17     0.01      20.25    -0.18
 11   0.0165    779.99     0.14      20.39    -0.05
 12   1.6983  34367.20    -0.20   11638.82     0.12
 13   1.6984  34363.03    -0.23   11639.14     0.12
 14   1.7010  34222.13    -0.11   11650.07     0.04
 15   1.7011  34215.84    -0.08   11650.49     0.01
 16   1.9413  27663.20    -0.10   11460.31     0.09
 17   1.9413  27663.82    -0.19   11460.12     0.06
 18   1.9414  27664.65    -0.14   11459.91     0.01
 19   2.6586  52674.57     0.34   17664.61     0.33
 20   2.6586  52674.41     0.31   17664.55     0.26
 21   2.6586  52674.20     0.46   17664.70     0.36
 22   2.6723  51928.74     0.08   17753.07    -0.08
 23   2.6723  51928.81     0.20   17752.88    -0.28
 24   2.6723  51928.68     0.14   17753.27     0.10
 25   2.6723  51928.63     0.14   17752.92    -0.25
 26   2.6723  51928.31     0.15   17753.36     0.15
 27   2.6723  51928.29     0.19   17752.92    -0.29
 28   2.8227  44389.73    -0.08   17894.18     0.09
 29   2.8227  44386.35    -0.20   17893.85     0.07
 30   2.8256  44288.00     0.02   17884.85     0.13
 31   2.8256  44287.78     0.01   17884.84     0.14
 32   3.6776  68272.66     0.19   24233.57     0.30
 33   3.6776  68272.52     0.29   24233.84     0.54
 34   3.6776  68272.34     0.30   24233.70     0.38
 35   3.6776  68272.13     0.27   24233.79     0.46
 36   3.6776  68271.77     0.08   24233.79     0.45
 37   3.6776  68271.79     0.28   24233.71     0.34
 38   3.6777  68271.77     0.43   24233.66     0.28
 39   3.6777  68271.33     0.16   24233.60     0.20
 40   3.6777  68271.13     0.15   24233.55     0.14
 41   3.6777  68271.09     0.29   24233.58     0.15
 42   4.7917  78877.92    -0.03   30990.14     0.28
 43   4.7917  78877.38     0.01   30990.04     0.23
 44   5.4312 106377.58    -0.18   33600.71    -0.64
 45   5.4312 106377.91    -0.17   33600.93    -0.57
 46   5.4312 106378.46    -0.01   33601.11    -0.58
 47   5.4312 106378.83     0.04   33601.22    -0.63
 48   5.4312 106378.83    -0.65   33601.22    -0.97
 49   5.4312 106379.67    -0.56   33601.73    -0.83
 50   5.4313 106384.76    -0.62   33604.17    -0.92
 51   5.4313 106385.67    -0.45   33604.46    -1.00
 52   5.5122 108808.16    -0.01   35542.64     0.30
 53   5.9059  91933.63    -0.07   36905.26     0.38
 54  10.0125 172241.89     0.12   67373.88     0.51
 55  10.0126 172243.02     0.13   67371.61     0.52

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.

04QQ26    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        22.842    22.844    22.840
ecceobj         0.146     0.146     0.146
incobj         21.498    21.498    21.498
qmin           18.792    18.510    18.789
qmax           28.011    27.175    26.970
amean          22.929    22.831    22.813
amin           22.341    22.511    22.263
amax           23.712    23.196    23.296
emean           0.144     0.160     0.144
emin            0.102     0.131     0.107
emax            0.189     0.184     0.167
imean          19.506    20.770    20.435
imin           18.023    20.251    19.628
imax           21.550    21.550    21.550
excite_mean     0.364     0.389     0.378
fracstop        0.051     0.019     0.031
cjmean          2.939     2.931     2.935

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       144.2      85.4     185.8
kozaiamp        178.5     177.4     178.6