Orbit Fit and Astrometric record for 434194

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: 434194    
# Created Tue Oct 17 01:36:46 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:  12.07y
# First observation: 2003/03/30
#  Last observation: 2015/04/24
# Chi-squared of fit:    43.37 DOF:   42 RMS:  0.24
# Min/Max residuals:    -0.29    0.98
# Exact a, adot, b, bdot, g, gdot:
  1.512251E-05  2.516480E-02 -1.989577E-06  1.282933E-04  2.507201E-02 -8.546178E-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
    2.308030  166.998899   -0.379422    0.037140   -0.921694  2452728.752983
# Heliocentric elements and errors
Epoch:              2452728.5000  =  2003/03/30
Mean Anomaly:          335.54046 +/-     0.000
Argument of Peri:      110.31354 +/-     0.000
Long of Asc Node:       84.31914 +/-     0.000
Inclination:             2.27146 +/-     0.000
Eccentricity:         0.05237993 +/-    0.0000
Semi-Major Axis:     42.83197458 +/-    0.0000
Time of Perihelion: 2459685.0900 +/-       0.0
Perihelion:          40.58843865 +/-    0.0000
Aphelion:            45.07551051 +/-    0.0000
Period (y)              280.3240 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.81740839 +/-    0.0000
Ecliptic Y            8.80729789 +/-    0.0000
Ecliptic Z            1.60618842 +/-    0.0000
Ecliptic XDOT        -0.00053318 +/-    0.0000
Ecliptic YDOT        -0.00270340 +/-    0.0000
Ecliptic ZDOT         0.00001043 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.81146316 +/-    0.0000
Geocenter to KBO     39.88517402 +/-    0.0000
# Hcoef:  7.13

The following table shows the complete astrometric record for 434194. 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 (434194) followed by the observatory code and reference code for the source of the astrometry.

2003 03  30.25224  11 15 46.73   +07 15 34.3   22.5R 434194    695  Ch8427      
2003 03  30.35207  11 15 46.29   +07 15 36.8         434194    695  Ch8427      
2003 03  31.32361  11 15 42.15   +07 16 02.1         434194    695  Ch8427      
2003 04  01.219887 11 15 38.32   +07 16 23.9   22.8V 434194    645  C~2KNP      
2003 04  01.220716 11 15 38.32   +07 16 24.0   22.6V 434194    645  C~2KNP      
2003 04  01.223204 11 15 38.32   +07 16 24.0   23.6V 434194    645  C~2KNP      
2004 02  26.37036  11 23 36.05   +06 26 27.4   23.1R 434194    695  Ck0870      
2004 02  26.44895  11 23 35.69   +06 26 29.9         434194    695  Ck0870      
2004 02  27.36196  11 23 31.57   +06 26 56.9         434194    695  Ck0870      
2004 03  15.21939  11 22 13.64   +06 35 18.1   23.1R 434194    695  Ck4311      
2004 03  15.29853  11 22 13.27   +06 35 20.4         434194    695  Ck4311      
2005 03  11.30266  11 27 55.54   +05 59 16.0   22.9R 434194    695  Cn0206      
2005 03  12.26017  11 27 51.08   +05 59 44.7         434194    695  Cn0206      
2005 03  12.34312  11 27 50.70   +05 59 46.8         434194    695  Cn0206      
2013 03  12.27040  12 10 36.74   +01 21 59.8   22.8R 434194    695  C~0ud4      
2013 03  12.32348  12 10 36.52   +01 22 01.0         434194    695  C~0ud4      
2013 03  13.29330  12 10 32.11   +01 22 30.4         434194    695  C~0ud4      
2015 02  18.31164  12 22 49.19   +00 01 01.5   22.9R 434194    695  C~1TRS      
2015 02  18.40538  12 22 48.86   +00 01 03.9         434194    695  C~1TRS      
2015 02  18.49404  12 22 48.54   +00 01 06.3         434194    695  C~1TRS      
2015 03  16.27735  12 21 02.82   +00 13 07.6   22.8R 434194    G37  C~1N5n      
2015 03  16.34969  12 21 02.48   +00 13 10.1         434194    G37  C~1N5n      
2015 04  24.20399  12 18 09.88   +00 31 20.8   23.6R 434194    G37  C~1ReC      
2015 04  24.36897  12 18 09.23   +00 31 24.7         434194    G37  C~1ReC      

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    -0.17       0.00     0.98
  2   0.0003      0.00     0.30       0.00     0.24
  3   0.0029      0.00     0.43       0.00     0.65
  4   0.0054      0.00    -0.14       0.00    -0.26
  5   0.0054      0.00    -0.09       0.00    -0.18
  6   0.0054      0.00     0.07       0.00    -0.24
  7   0.9120      0.00    -0.18       0.00    -0.23
  8   0.9122      0.00    -0.18       0.00    -0.06
  9   0.9147      0.00    -0.14       0.00    -0.19
 10   0.9609      0.00    -0.07       0.00    -0.02
 11   0.9611      0.00    -0.02       0.00    -0.03
 12   1.9495      0.00     0.09       0.00    -0.09
 13   1.9521      0.00    -0.06       0.00     0.08
 14   1.9523      0.00     0.12       0.00    -0.29
 15   9.9521      0.00     0.02       0.00     0.10
 16   9.9523      0.00     0.37       0.00    -0.29
 17   9.9549      0.00     0.02       0.00    -0.04
 18  11.8906      0.00     0.03       0.00    -0.19
 19  11.8909      0.00     0.09       0.00    -0.12
 20  11.8911      0.00     0.05       0.00     0.08
 21  11.9617      0.00     0.09       0.00    -0.14
 22  11.9619      0.00    -0.02       0.00     0.19
 23  12.0683      0.00    -0.13       0.00     0.12
 24  12.0688      0.00     0.03       0.00     0.13

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.

434194    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.421    42.421    42.421
ecceobj         0.044     0.044     0.044
incobj          2.271     2.271     2.271
qmin           39.689    39.683    39.705
qmax           45.751    45.767    45.735
amean          42.623    42.623    42.622
amin           42.300    42.301    42.303
amax           42.971    42.968    42.968
emean           0.042     0.042     0.042
emin            0.019     0.019     0.019
emax            0.065     0.065     0.065
imean           1.122     1.122     1.122
imin            0.699     0.699     0.699
imax            1.510     1.510     1.509
excite_mean     0.047     0.047     0.047
fracstop        1.000     1.000     1.000
cjmean          3.083     3.083     3.083

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       177.5     177.3     177.8
kozaiamp        180.0     180.0     180.0