Orbit Fit and Astrometric record for 05EF304

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: 05EF304   
# Created Wed Dec 13 02:37:24 2017
# Orbit generated from Bernstein formalism
# Fitting   27 observations of   27
# Arc:   9.22y
# First observation: 2005/03/11
#  Last observation: 2014/05/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000785   0.031164   0.000510  -0.010461   0.026491   0.000000
# Chi-squared of fit:    68.27 DOF:   48 RMS:  0.28
# Min/Max residuals:    -0.58    0.59
# Exact a, adot, b, bdot, g, gdot:
  1.801320E-05  2.947094E-02 -6.032038E-06 -9.862453E-03  2.556285E-02 -4.962179E-03
# Covariance matrix:
  1.8771E-13 -8.0245E-14 -1.5501E-14  2.3293E-14  6.7777E-14 -2.4811E-13
 -8.0245E-14  1.0949E-13  2.5959E-14 -3.7406E-14  1.7717E-14  3.9589E-13
 -1.5501E-14  2.5959E-14  1.1090E-13 -2.3396E-14  5.7257E-15  9.7279E-14
  2.3293E-14 -3.7406E-14 -2.3396E-14  1.7097E-14 -6.4504E-15 -1.4019E-13
  6.7777E-14  1.7717E-14  5.7257E-15 -6.4504E-15  1.5133E-13  6.5273E-14
 -2.4811E-13  3.9589E-13  9.7279E-14 -1.4019E-13  6.5273E-14  1.4837E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.752165 -172.008292    0.291980    0.045468   -0.944174  2453440.930263
# Heliocentric elements and errors
Epoch:              2453440.5000  =  2005/03/11
Mean Anomaly:          353.71310 +/-     0.002
Argument of Peri:      197.93099 +/-     0.007
Long of Asc Node:       15.55987 +/-     0.000
Inclination:            18.66317 +/-     0.000
Eccentricity:         0.56135018 +/-    0.0001
Semi-Major Axis:     87.93262393 +/-    0.0147
Time of Perihelion: 2458700.1618 +/-       1.3
Perihelion:          38.57162950 +/-    0.0086
Aphelion:           137.29361836 +/-    0.0237
Period (y)              824.5809 +/-      0.21
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.67557122 +/-    0.0006
Ecliptic Y           -5.27564517 +/-    0.0001
Ecliptic Z            1.87813741 +/-    0.0000
Ecliptic XDOT         0.00091440 +/-    0.0000
Ecliptic YDOT        -0.00306616 +/-    0.0000
Ecliptic ZDOT        -0.00108053 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.06882558 +/-    0.0006
Geocenter to KBO     39.11926339 +/-    0.0006
# Hcoef:  7.28

The following table shows the complete astrometric record for 05EF304. 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 (05EF304) followed by the observatory code and reference code for the source of the astrometry.

2005 03  11.42952  12 33 42.06   -00 38 27.2   23.2R 05EF304   695  Cn0312      
2005 03  12.38284  12 33 37.84   -00 38 04.4         05EF304   695  Cn0312      
2005 03  12.48062  12 33 37.40   -00 38 02.7         05EF304   695  Cn0312      
2005 04  12.31912  12 31 14.75   -00 25 47.5   22.9R 05EF304   695  Cn3133      
2005 04  12.41792  12 31 14.32   -00 25 45.3         05EF304   695  Cn3133      
2005 04  15.15019  12 31 02.04   -00 24 45.9   23.2R 05EF304   304  Cn3361      
2005 04  15.17459  12 31 01.92   -00 24 45.0         05EF304   304  Cn3361      
2005 06  07.98706  12 28 19.08   -00 15 19.6   23.1R 05EF304   304  Cn6541      
2005 06  08.07870  12 28 19.02   -00 15 19.8         05EF304   304  Cn6541      
2006 04  26.07273  12 35 36.60   -01 32 37.8   22.1R 05EF304   807  Cr5134      
2006 04  26.15609  12 35 36.25   -01 32 36.2         05EF304   807  Cr5134      
2006 06  22.01898  12 33 26.35   -01 27 01.0   23.2R 05EF304   304  Cr5134      
2006 06  22.04927  12 33 26.35   -01 27 01.3         05EF304   304  Cr5134      
2007 02  15.32108  12 46 00.65   -03 09 52.1         05EF304   304  Cu1516      
2007 02  15.35972  12 46 00.50   -03 09 51.5         05EF304   304  Cu1516      
2007 02  15.38485  12 46 00.42   -03 09 51.1         05EF304   304  Cu1516      
2008 06  06.99375  12 44 16.51   -03 48 36.1         05EF304   807  Cz1384      
2008 06  08.00829  12 44 14.98   -03 48 34.4         05EF304   807  Cz1384      
2013 03  16.25367  13 17 52.645  -10 20 26.29  23.0r 05EF304   807  C~2KVV      
2013 03  16.25367  13 17 52.61   -10 20 26.9   23.3r 05EF304   W84  C~2J8t      
2013 03  16.30082  13 17 52.444  -10 20 25.54        05EF304   807  C~2KVV      
2013 03  16.30082  13 17 52.40   -10 20 26.0         05EF304   W84  C~2J8t      
2013 03  16.35904  13 17 52.188  -10 20 24.26        05EF304   807  C~2KVV      
2013 03  16.35905  13 17 52.14   -10 20 25.0         05EF304   W84  C~2J8t      
2014 05  30.18806  13 18 13.67   -11 08 43.0   22.8R 05EF304   695  C~1LJO      
2014 05  30.29046  13 18 13.33   -11 08 41.8         05EF304   695  C~1LJO      
2014 05  30.33058  13 18 13.20   -11 08 41.0         05EF304   695  C~1LJO      

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     0.04       0.00    -0.01
  2   0.0026    -67.16    -0.04      -3.98     0.04
  3   0.0029    -73.90     0.23      -5.02    -0.54
  4   0.0873  -2330.25     0.09    -172.29     0.08
  5   0.0876  -2337.04     0.41    -172.81     0.25
  6   0.0951  -2529.77     0.33    -190.80     0.24
  7   0.0951  -2531.78     0.05    -190.68     0.53
  8   0.2425  -5000.35    -0.45    -633.71    -0.19
  9   0.2427  -5001.10     0.13    -634.25     0.15
 10   1.1243   2859.55    -0.14   -2311.49    -0.05
 11   1.1245   2854.09    -0.11   -2312.09    -0.01
 12   1.2802    931.39    -0.16   -2771.17    -0.06
 13   1.2803    931.51    -0.13   -2771.45    -0.07
 14   1.9326  13774.80    -0.08   -4004.63    -0.02
 15   1.9327  13772.49    -0.53   -4004.96    -0.18
 16   1.9328  13771.22    -0.58   -4005.06    -0.18
 17   3.2404  13252.18     0.52   -6761.36     0.08
 18   3.2432  13230.36     0.23   -6768.78    -0.25
 19   8.0132  51096.00     0.00  -17229.01    -0.38
 20   8.0132  51096.26     0.26  -17228.23     0.41
 21   8.0133  51092.59    -0.04  -17229.33    -0.33
 22   8.0133  51093.04     0.41  -17228.64     0.36
 23   8.0135  51088.80     0.33  -17228.84     0.59
 24   8.0135  51088.41    -0.06  -17229.82    -0.39
 25   9.2177  52594.83    -0.03  -19912.13     0.23
 26   9.2180  52589.40    -0.25  -19912.87    -0.23
 27   9.2181  52587.18    -0.44  -19912.82    -0.08

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.

05EF304    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        85.386    85.426    85.346
ecceobj         0.549     0.549     0.548
incobj         18.747    18.747    18.747
qmin           37.131    37.089    37.110
qmax          138.272   139.140   138.573
amean          86.202    86.412    86.224
amin           84.738    84.738    84.746
amax           88.290    88.519    88.267
emean           0.556     0.557     0.555
emin            0.543     0.542     0.541
emax            0.569     0.572     0.570
imean          18.263    18.238    18.389
imin           17.678    17.599    17.721
imax           18.992    19.172    19.308
excite_mean     0.638     0.639     0.639
fracstop        1.000     1.000     1.000
cjmean          3.020     3.020     3.020

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       190.2     185.6     185.5
kozaiamp        180.0     180.0     180.0