Orbit Fit and Astrometric record for 04QH29

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: 04QH29    
# Created Tue Oct 24 01:37:32 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:  10.17y
# First observation: 2004/08/19
#  Last observation: 2014/10/22
Preliminary a, adot, b, bdot, g, gdot:
  -0.000771   0.028483  -0.000199   0.006063   0.025659   0.000000
# Chi-squared of fit:    76.39 DOF:   42 RMS:  0.32
# Min/Max residuals:    -0.92    0.79
# Exact a, adot, b, bdot, g, gdot:
  1.706877E-05  2.756728E-02  1.679699E-06  5.848074E-03  2.574314E-02 -2.128568E-03
# Covariance matrix:
  1.5678E-13 -9.1614E-14  1.3217E-14 -1.8628E-14  3.9681E-14 -2.9175E-13
 -9.1614E-14  1.1498E-13 -1.8104E-14  2.5403E-14 -1.3019E-14  3.9656E-13
  1.3217E-14 -1.8104E-14  9.9276E-14 -1.6069E-14  4.2046E-15 -6.5131E-14
 -1.8628E-14  2.5403E-14 -1.6069E-14  9.7842E-15 -6.6602E-15  9.1570E-14
  3.9681E-14 -1.3019E-14  4.2046E-15 -6.6602E-15  2.8450E-13 -1.1285E-13
 -2.9175E-13  3.9656E-13 -6.5131E-14  9.1570E-14 -1.1285E-13  1.4315E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.922182  -37.662996   -0.077668   -0.016245   -1.013018  2453236.871453
# Heliocentric elements and errors
Epoch:              2453230.5000  =  2004/08/13
Mean Anomaly:          345.48342 +/-     0.011
Argument of Peri:       18.86090 +/-     0.017
Long of Asc Node:      326.66464 +/-     0.000
Inclination:            12.04142 +/-     0.000
Eccentricity:         0.22287113 +/-    0.0001
Semi-Major Axis:     50.53004788 +/-    0.0060
Time of Perihelion: 2458520.8547 +/-       3.8
Perihelion:          39.26835925 +/-    0.0059
Aphelion:            61.79173650 +/-    0.0082
Period (y)              359.1971 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.59243147 +/-    0.0006
Ecliptic Y          -24.28780197 +/-    0.0005
Ecliptic Z           -0.62509703 +/-    0.0000
Ecliptic XDOT         0.00161826 +/-    0.0000
Ecliptic YDOT         0.00244609 +/-    0.0000
Ecliptic ZDOT         0.00062563 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.85435731 +/-    0.0006
Geocenter to KBO     38.84529758 +/-    0.0008
# Hcoef:  7.57

The following table shows the complete astrometric record for 04QH29. 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 (04QH29) followed by the observatory code and reference code for the source of the astrometry.

2004 08  19.37071  21 40 01.21   -14 56 18.8   23.4g 04QH29    568  C~0X5Y      
2004 08  19.37236  21 40 01.21   -14 56 19.1   22.9g 04QH29    568  C~0X5Y      
2004 08  19.39699  21 40 01.08   -14 56 19.2   23.1g 04QH29    568  C~0X5Y      
2004 08  19.39863  21 40 01.01   -14 56 19.6   23.0g 04QH29    568  C~0X5Y      
2004 08  19.42797  21 40 00.90   -14 56 19.7   23.2g 04QH29    568  C~0X5Y      
2004 08  19.42961  21 40 00.91   -14 56 20.4   23.2g 04QH29    568  C~0X5Y      
2004 08  20.40532  21 39 56.14   -14 56 41.2   23.5g 04QH29    568  C~0X5Y      
2004 10  13.26576  21 36 27.96   -15 10 05.0   23.3i 04QH29    568  C~0X5Y      
2004 10  13.32727  21 36 27.85   -15 10 05.4   23.2i 04QH29    568  C~0X5Y      
2004 10  13.38664  21 36 27.75   -15 10 06.2   24.0i 04QH29    568  C~0X5Y      
2006 07  20.44865  21 53 47.21   -13 04 32.3         04QH29    568  C~0X5Y      
2006 07  20.47503  21 53 47.09   -13 04 32.9   23.2r 04QH29    568  C~0X5Y      
2006 07  20.50155  21 53 46.98   -13 04 33.4         04QH29    568  C~0X5Y      
2006 07  26.38624  21 53 21.67   -13 06 26.5   23.8r 04QH29    568  C~0X5Y      
2006 07  26.41220  21 53 21.56   -13 06 27.2   24.0r 04QH29    568  C~0X5Y      
2006 07  26.43819  21 53 21.44   -13 06 27.7   24.0r 04QH29    568  C~0X5Y      
2006 10  22.16072  21 47 29.26   -13 31 41.8         04QH29    675  C~0X5Y      
2006 10  22.16486  21 47 29.26   -13 31 41.9         04QH29    675  C~0X5Y      
2006 10  23.18077  21 47 27.71   -13 31 46.1         04QH29    675  C~0X5Y      
2014 09  26.19924  22 33 31.32   -06 22 50.6   22.4R 04QH29    695  C~1LJL      
2014 09  26.25993  22 33 31.06   -06 22 52.6         04QH29    695  C~1LJL      
2014 09  26.31745  22 33 30.80   -06 22 53.4         04QH29    695  C~1LJL      
2014 10  22.13143  22 32 01.88   -06 31 18.5   22.2R 04QH29    G37  C~1BxG      
2014 10  22.23813  22 32 01.60   -06 31 20.1         04QH29    G37  C~1BxG      

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    -0.03       0.00     0.39
  2   0.0000     -0.10    -0.00      -0.28     0.10
  3   0.0001     -1.91     0.05       0.24     0.53
  4   0.0001     -3.00    -0.92       0.19     0.48
  5   0.0002     -4.54    -0.24       0.61     0.79
  6   0.0002     -4.63    -0.20      -0.10     0.07
  7   0.0028    -76.77     0.17       2.77    -0.41
  8   0.1503  -3190.29     0.03     219.22    -0.03
  9   0.1505  -3191.93     0.33     219.36    -0.20
 10   0.1506  -3193.56     0.56     219.07    -0.78
 11   1.9167  13588.06     0.20    2325.23    -0.06
 12   1.9168  13586.20     0.06    2325.26    -0.12
 13   1.9169  13584.51     0.10    2325.33    -0.14
 14   1.9330  13196.65     0.13    2344.35     0.25
 15   1.9330  13194.89     0.17    2344.24     0.04
 16   1.9331  13193.07     0.14    2344.36     0.08
 17   2.1733   7828.21    -0.20    2646.35    -0.35
 18   2.1733   7828.18    -0.13    2646.25    -0.46
 19   2.1761   7805.43    -0.14    2649.83    -0.51
 20  10.1022  56466.39     0.05   12680.10     0.18
 21  10.1024  56461.71    -0.19   12679.61    -0.39
 22  10.1025  56457.52    -0.18   12680.28     0.20
 23  10.1732  54933.35     0.13   12684.32     0.15
 24  10.1735  54928.56     0.12   12684.32     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.

04QH29    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        51.025    51.043    51.007
ecceobj         0.231     0.231     0.231
incobj         12.001    12.001    12.000
qmin           38.336    38.302    38.380
qmax           63.934    64.024    63.843
amean          50.849    50.862    50.833
amin           50.352    50.396    50.355
amax           51.436    51.429    51.391
emean           0.230     0.230     0.229
emin            0.217     0.217     0.216
emax            0.244     0.245     0.243
imean          12.965    12.947    12.994
imin           12.551    12.534    12.573
imax           13.457    13.425    13.472
excite_mean     0.321     0.321     0.321
fracstop        1.000     1.000     1.000
cjmean          3.057     3.057     3.056

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       172.4     172.3     173.0
kozaiamp        180.0     180.0     180.0