Orbit Fit and Astrometric record for 434390

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: 434390    
# Created Tue Oct 24 01:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   31 observations of   31
# Arc:  10.17y
# First observation: 2005/02/10
#  Last observation: 2015/04/15
# Chi-squared of fit:    67.59 DOF:   56 RMS:  0.26
# Min/Max residuals:    -0.52    0.65
# Exact a, adot, b, bdot, g, gdot:
  1.776714E-05  3.201301E-02  1.640767E-06  2.788109E-03  2.729814E-02 -1.692085E-04
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.319426  137.128075   -0.073906    0.022697   -0.980497  2453411.809733
# Heliocentric elements and errors
Epoch:              2453412.5000  =  2005/02/11
Mean Anomaly:          359.46905 +/-     0.000
Argument of Peri:       15.62295 +/-     0.000
Long of Asc Node:      122.78406 +/-     0.000
Inclination:             5.13244 +/-     0.000
Eccentricity:         0.32489114 +/-    0.0000
Semi-Major Axis:     55.71630653 +/-    0.0000
Time of Perihelion: 2453636.5403 +/-       0.0
Perihelion:          37.61457231 +/-    0.0000
Aphelion:            73.81804075 +/-    0.0000
Period (y)              415.8931 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -27.61381531 +/-    0.0000
Ecliptic Y           25.52940921 +/-    0.0000
Ecliptic Z            0.84356390 +/-    0.0000
Ecliptic XDOT        -0.00216748 +/-    0.0000
Ecliptic YDOT        -0.00237617 +/-    0.0000
Ecliptic ZDOT         0.00027923 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.61629132 +/-    0.0000
Geocenter to KBO     36.63257302 +/-    0.0000
# Hcoef:  8.47

The following table shows the complete astrometric record for 434390. 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 (434390) followed by the observatory code and reference code for the source of the astrometry.

2005 02  10.30899  09 19 58.88   +16 57 32.3   24.2g 434390    568  C~0X5e      
2005 02  10.39196  09 19 58.44   +16 57 34.6   24.1g 434390    568  C~0X5e      
2005 02  10.43152  09 19 58.22   +16 57 35.4   24.1g 434390    568  C~0X5e      
2005 02  15.33214  09 19 32.58   +16 59 40.4   23.9g 434390    568  C~0X5e      
2005 04  11.30482  09 16 05.72   +17 15 36.8   24.1i 434390    568  C~0X5e      
2005 04  11.33442  09 16 05.68   +17 15 36.9   24.0i 434390    568  C~0X5e      
2005 04  11.35929  09 16 05.63   +17 15 37.1   23.9i 434390    568  C~0X5e      
2006 02  03.47735  09 28 06.21   +16 29 26.1         434390    568  C~0X5e      
2006 02  06.32831  09 27 51.29   +16 30 42.8         434390    568  C~0X5e      
2006 02  06.36907  09 27 51.08   +16 30 43.7         434390    568  C~0X5e      
2006 02  06.40730  09 27 50.88   +16 30 44.7   23.8r 434390    568  C~0X5e      
2006 03  02.22794  09 25 49.18   +16 40 47.3   24.0R 434390    695  C~0X5e      
2006 03  02.28430  09 25 48.92   +16 40 48.5         434390    695  C~0X5e      
2006 03  02.34040  09 25 48.65   +16 40 49.8         434390    695  C~0X5e      
2007 02  14.46983  09 34 37.68   +16 08 17.4         434390    568  C~0X5e      
2007 02  14.50376  09 34 37.50   +16 08 18.4         434390    568  C~0X5e      
2007 02  14.53694  09 34 37.32   +16 08 19.3         434390    568  C~0X5e      
2007 02  15.48068  09 34 32.42   +16 08 44.7         434390    568  C~0X5e      
2010 03  19.15000  09 54 05.29   +14 59 35.3         434390    675  C~0X5e      
2010 03  19.18255  09 54 05.16   +14 59 35.7         434390    675  C~0X5e      
2010 03  20.14302  09 54 01.24   +14 59 55.9         434390    675  C~0X5e      
2010 03  20.17381  09 54 01.10   +14 59 56.8         434390    675  C~0X5e      
2015 02  18.27179  10 32 19.67   +12 13 34.7   23.3R 434390    695  C~1M6D      
2015 02  18.36258  10 32 19.20   +12 13 37.7         434390    695  C~1M6D      
2015 02  18.45491  10 32 18.74   +12 13 40.5         434390    695  C~1M6D      
2015 03  23.14543  10 29 41.63   +12 29 12.1   23.2R 434390    695  C~1Q3K      
2015 03  23.21118  10 29 41.33   +12 29 13.6         434390    695  C~1Q3K      
2015 03  23.27204  10 29 41.07   +12 29 15.1         434390    695  C~1Q3K      
2015 04  15.19178  10 28 17.54   +12 36 40.3   23.4R 434390    695  C~1RHV      
2015 04  15.27027  10 28 17.29   +12 36 41.3         434390    695  C~1RHV      
2015 04  15.34305  10 28 17.11   +12 36 42.8         434390    695  C~1RHV      

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    -0.12       0.00     0.57
  2   0.0002      0.00     0.28       0.00     0.08
  3   0.0003      0.00     0.17       0.00    -0.14
  4   0.0138      0.00     0.58       0.00     0.31
  5   0.1643      0.00    -0.20       0.00     0.11
  6   0.1643      0.00    -0.06       0.00     0.02
  7   0.1644      0.00    -0.20       0.00     0.06
  8   0.9806      0.00    -0.10       0.00     0.05
  9   0.9884      0.00    -0.03       0.00     0.65
 10   0.9885      0.00     0.08       0.00     0.45
 11   0.9886      0.00     0.14       0.00     0.43
 12   1.0539      0.00    -0.20       0.00    -0.20
 13   1.0540      0.00     0.01       0.00    -0.30
 14   1.0542      0.00     0.04       0.00    -0.29
 15   2.0100      0.00     0.01       0.00    -0.35
 16   2.0101      0.00     0.01       0.00    -0.25
 17   2.0102      0.00    -0.05       0.00    -0.24
 18   2.0128      0.00     0.15       0.00    -0.15
 19   5.1002      0.00    -0.51       0.00    -0.02
 20   5.1003      0.00    -0.38       0.00    -0.32
 21   5.1029      0.00     0.55       0.00    -0.52
 22   5.1030      0.00     0.39       0.00    -0.28
 23  10.0204      0.00     0.10       0.00     0.00
 24  10.0207      0.00    -0.12       0.00     0.20
 25  10.0209      0.00    -0.08       0.00     0.17
 26  10.1104      0.00     0.20       0.00     0.05
 27  10.1106      0.00     0.06       0.00    -0.06
 28  10.1108      0.00     0.20       0.00    -0.04
 29  10.1735      0.00     0.12       0.00    -0.05
 30  10.1737      0.00    -0.20       0.00    -0.14
 31  10.1739      0.00     0.26       0.00     0.36

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.

434390    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        55.281    55.281    55.281
ecceobj         0.319     0.319     0.319
incobj          5.139     5.139     5.139
qmin           36.712    36.749    36.722
qmax           74.588    74.534    74.479
amean          55.111    55.109    55.109
amin           54.493    54.481    54.481
amax           55.936    55.956    55.915
emean           0.318     0.318     0.318
emin            0.304     0.304     0.305
emax            0.334     0.332     0.333
imean           3.415     3.430     3.434
imin            2.810     2.903     2.897
imax            4.133     4.131     4.139
excite_mean     0.324     0.323     0.324
fracstop        1.000     1.000     1.000
cjmean          3.107     3.107     3.107

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       171.6     171.6     171.5
kozaiamp        179.9     180.0     180.0