Orbit Fit and Astrometric record for 05EN302

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: 05EN302   
# Created Mon Dec 18 02:37:24 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:  10.03y
# First observation: 2005/03/11
#  Last observation: 2015/03/23
Preliminary a, adot, b, bdot, g, gdot:
  -0.000142   0.019029   0.000001  -0.000827   0.021172   0.000000
# Chi-squared of fit:    41.91 DOF:   30 RMS:  0.27
# Min/Max residuals:    -0.67    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.397261E-05  1.902347E-02 -9.380132E-07 -8.289632E-04  2.150177E-02  1.345046E-03
# Covariance matrix:
  4.8043E-13 -1.7196E-13 -4.5464E-16  5.2920E-15  3.4909E-13 -7.1498E-13
 -1.7196E-13  2.4746E-13  5.7553E-15 -1.0512E-14 -9.3691E-15  1.3324E-12
 -4.5464E-16  5.7553E-15  1.3191E-13 -1.7276E-14  4.2295E-15  3.3545E-14
  5.2920E-15 -1.0512E-14 -1.7276E-14  6.2933E-15 -1.5863E-15 -5.8776E-14
  3.4909E-13 -9.3691E-15  4.2295E-15 -1.5863E-15  4.7244E-13  1.4019E-13
 -7.1498E-13  1.3324E-12  3.3545E-14 -5.8776E-14  1.4019E-13  7.4249E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.825430 -167.555768    0.365395    0.029371   -0.918908  2453440.873943
# Heliocentric elements and errors
Epoch:              2453440.5000  =  2005/03/11
Mean Anomaly:          123.33207 +/-     0.115
Argument of Peri:       13.56678 +/-     0.104
Long of Asc Node:       47.90966 +/-     0.002
Inclination:             3.04993 +/-     0.000
Eccentricity:         0.07899186 +/-    0.0001
Semi-Major Axis:     45.28221030 +/-    0.0061
Time of Perihelion: 2415310.8001 +/-      34.8
Perihelion:          41.70528442 +/-    0.0071
Aphelion:            48.85913618 +/-    0.0078
Period (y)              304.7191 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -46.37279210 +/-    0.0015
Ecliptic Y           -9.85898294 +/-    0.0003
Ecliptic Z            1.48145637 +/-    0.0001
Ecliptic XDOT         0.00035163 +/-    0.0000
Ecliptic YDOT        -0.00241013 +/-    0.0000
Ecliptic ZDOT        -0.00009998 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.43237401 +/-    0.0014
Geocenter to KBO     46.50779128 +/-    0.0015
# Hcoef:  7.00

The following table shows the complete astrometric record for 05EN302. 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 (05EN302) followed by the observatory code and reference code for the source of the astrometry.

2005 03  11.37320  12 48 38.00   -03 14 09.3   23.3R 05EN302   695  Cn0311      
2005 03  11.47546  12 48 37.63   -03 14 07.0         05EN302   695  Cn0311      
2005 03  12.42323  12 48 34.07   -03 13 44.5         05EN302   695  Cn0311      
2005 06  07.04175  12 43 48.04   -02 45 28.7   23.5R 05EN302   304  Cn6541      
2005 06  07.13354  12 43 47.93   -02 45 28.3         05EN302   304  Cn6541      
2005 07  09.97170  12 43 43.39   -02 46 35.0         05EN302   304  Cn8898      
2005 07  10.04704  12 43 43.49   -02 46 35.8         05EN302   304  Cn8898      
2006 04  22.24450  12 49 51.59   -03 25 17.2   23.8R 05EN302   304  Cr3594      
2006 04  22.29782  12 49 51.38   -03 25 15.9         05EN302   304  Cr3594      
2006 04  26.08057  12 49 37.20   -03 23 51.2   23.0R 05EN302   807  Cr3594      
2006 04  26.16378  12 49 36.83   -03 23 49.3         05EN302   807  Cr3594      
2006 04  27.11033  12 49 33.39   -03 23 28.6         05EN302   807  Cr3594      
2006 04  27.17699  12 49 33.12   -03 23 27.8         05EN302   807  Cr3594      
2013 03  12.35916  13 20 01.32   -06 53 39.6   23.4R 05EN302   695  C~0udE      
2013 03  12.43349  13 20 01.07   -06 53 37.6         05EN302   695  C~0udE      
2013 03  13.36292  13 19 57.86   -06 53 18.2         05EN302   695  C~0udE      
2015 03  23.40209  13 27 14.37   -07 43 14.3   23.7R 05EN302   695  C~1Q3K      
2015 03  23.46492  13 27 14.13   -07 43 12.6         05EN302   695  C~1Q3K      

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     0.00       0.00     0.07
  2   0.0003     -6.00     0.25      -0.04     0.02
  3   0.0029    -63.87    -0.33      -0.05    -0.44
  4   0.2400  -4671.39     0.24    -107.44    -0.24
  5   0.2403  -4673.06     0.57    -107.72    -0.24
  6   0.3302  -4709.69    -0.45    -195.69     0.11
  7   0.3304  -4708.00    -0.14    -195.84     0.19
  8   1.1140   1275.00     0.42    -186.75     0.03
  9   1.1141   1271.60     0.32    -186.77     0.09
 10   1.1245   1043.04     0.15    -191.29     0.35
 11   1.1247   1037.20    -0.67    -191.69     0.09
 12   1.1273    981.69    -0.19    -192.65     0.42
 13   1.1275    977.66    -0.24    -193.48    -0.30
 14   8.0027  31271.84     0.08   -1362.48    -0.32
 15   8.0029  31267.54     0.05   -1362.03     0.14
 16   8.0054  31214.76     0.03   -1362.11    -0.17
 17  10.0316  38564.69     0.01   -1705.36    -0.04
 18  10.0317  38560.61    -0.12   -1705.11     0.24

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.

05EN302    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.770    44.788    44.753
ecceobj         0.087     0.087     0.088
incobj          3.063     3.063     3.063
qmin           40.244    40.286    40.214
qmax           50.089    50.108    50.047
amean          45.039    45.058    45.021
amin           44.666    44.681    44.650
amax           45.435    45.448    45.410
emean           0.088     0.088     0.088
emin            0.074     0.074     0.075
emax            0.103     0.103     0.102
imean           2.169     2.174     2.166
imin            1.593     1.598     1.587
imax            2.651     2.651     2.651
excite_mean     0.096     0.096     0.096
fracstop        1.000     1.000     1.000
cjmean          3.103     3.103     3.103

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       171.9     172.0     172.5
kozaiamp        180.0     180.0     180.0