Orbit Fit and Astrometric record for 05JP179

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: 05JP179   
# Created Wed Dec 13 02:37:25 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:   8.96y
# First observation: 2005/05/11
#  Last observation: 2014/04/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.000340   0.024058  -0.000013   0.000277   0.023184   0.000000
# Chi-squared of fit:    52.31 DOF:   42 RMS:  0.26
# Min/Max residuals:    -0.86    0.63
# Exact a, adot, b, bdot, g, gdot:
  1.603546E-05  2.368848E-02 -1.605039E-06  2.710549E-04  2.425561E-02  2.966308E-04
# Covariance matrix:
  3.6668E-13 -3.9947E-13  7.1506E-15 -4.5600E-15  4.3347E-13 -1.5612E-12
 -3.9947E-13  5.5025E-13 -1.0039E-14  6.4492E-15 -6.0430E-13  2.2130E-12
  7.1506E-15 -1.0039E-14  9.5816E-14 -1.6128E-14  1.3717E-14 -4.0041E-14
 -4.5600E-15  6.4492E-15 -1.6128E-14  7.5733E-15 -7.3383E-15  2.6240E-14
  4.3347E-13 -6.0430E-13  1.3717E-14 -7.3383E-15  9.5845E-13 -2.3637E-12
 -1.5612E-12  2.2130E-12 -4.0041E-14  2.6240E-14 -2.3637E-12  9.0584E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.040799 -150.392669   -0.359405    0.033619   -0.939884  2453501.518573
# Heliocentric elements and errors
Epoch:              2453500.5000  =  2005/05/10
Mean Anomaly:           41.10315 +/-     0.091
Argument of Peri:       28.65663 +/-     0.096
Long of Asc Node:      137.79892 +/-     0.006
Inclination:             2.09401 +/-     0.000
Eccentricity:         0.03273208 +/-    0.0002
Semi-Major Axis:     43.21815960 +/-    0.0098
Time of Perihelion: 2441651.8062 +/-      26.0
Perihelion:          41.80353919 +/-    0.0132
Aphelion:            44.63278002 +/-    0.0137
Period (y)              284.1238 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.46591160 +/-    0.0015
Ecliptic Y          -21.13402428 +/-    0.0008
Ecliptic Z            1.46807848 +/-    0.0001
Ecliptic XDOT         0.00129354 +/-    0.0000
Ecliptic YDOT        -0.00234777 +/-    0.0000
Ecliptic ZDOT         0.00003182 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.17303576 +/-    0.0013
Geocenter to KBO     41.22757038 +/-    0.0017
# Hcoef:  6.23

The following table shows the complete astrometric record for 05JP179. 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 (05JP179) followed by the observatory code and reference code for the source of the astrometry.

2005 05  11.01783  13 53 03.64   -09 25 23.6   21.0R 05JP179   807  Cn7092      
2005 05  11.10710  13 53 03.26   -09 25 21.6         05JP179   807  Cn7093      
2005 06  09.15131  13 51 19.71   -09 16 34.3   21.8R 05JP179   304  Cn7093      
2005 06  09.19221  13 51 19.59   -09 16 33.9         05JP179   304  Cn7093      
2005 06  30.21376  13 50 39.21   -09 13 42.6   22.5R 05JP179   688  Cn8482      
2005 07  01.21623  13 50 38.08   -09 13 39.5         05JP179   688  Cn8482      
2005 08  07.98985  13 51 02.41   -09 17 42.7   21.2R 05JP179   807  Co4001      
2005 08  08.99804  13 51 04.75   -09 17 58.5         05JP179   807  Co4001      
2006 04  22.25478  13 59 40.69   -10 00 37.1   22.3R 05JP179   304  Cr3594      
2006 04  22.30734  13 59 40.44   -10 00 36.1         05JP179   304  Cr3594      
2006 04  26.09603  13 59 23.08   -09 59 01.4   21.5R 05JP179   807  Cr3594      
2006 04  26.17946  13 59 22.68   -09 58 59.3         05JP179   807  Cr3594      
2006 04  27.15246  13 59 18.25   -09 58 35.2         05JP179   807  Cr3594      
2006 04  27.20233  13 59 18.01   -09 58 33.9         05JP179   807  Cr3594      
2006 05  26.215923 13 57 15.36   -09 47 51.3   22.6V 05JP179   645  C~2JxC      
2006 05  26.216752 13 57 15.36   -09 47 51.4   22.5V 05JP179   645  C~2JxC      
2006 05  26.219240 13 57 15.36   -09 47 51.4   23.7V 05JP179   645  C~2JxC      
2008 04  04.36964  14 11 24.55   -11 01 42.0   22.2R 05JP179   688  Cy5744      
2008 04  04.45579  14 11 24.21   -11 01 40.6         05JP179   688  Cy5744      
2009 02  26.42010  14 18 37.73   -11 39 36.9   21.9R 05JP179   688  C~04qw      
2009 02  26.50797  14 18 37.50   -11 39 36.3         05JP179   688  C~04qw      
2014 04  24.36751  14 41 24.08   -13 26 26.0         05JP179   W84  C~1Til      
2014 04  25.38471  14 41 19.38   -13 26 03.5   24.3V 05JP179   W84  C~1Til      
2014 04  26.30248  14 41 15.13   -13 25 43.4         05JP179   W84  C~1Til      

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     0.37
  2   0.0002     -5.97    -0.06      -0.10     0.39
  3   0.0798  -1626.18    -0.08     -44.55     0.15
  4   0.0799  -1627.98    -0.12     -44.81    -0.01
  5   0.1374  -2247.90     0.63     -94.87    -0.29
  6   0.1402  -2264.65    -0.56     -97.86    -0.68
  7   0.2436  -1841.86     0.07    -198.69    -0.06
  8   0.2464  -1803.87     0.08    -201.29    -0.05
  9   0.9479   6240.73     0.01      63.55     0.29
 10   0.9481   6236.92     0.05      63.21    -0.04
 11   0.9585   5963.31     0.08      63.30     0.04
 12   0.9587   5957.03    -0.10      63.22     0.01
 13   0.9614   5887.23     0.19      63.17     0.10
 14   0.9615   5883.45     0.06      63.17     0.12
 15   1.0409   3959.55    -0.11      36.93     0.20
 16   1.0409   3959.58    -0.03      36.84     0.11
 17   1.0409   3959.58     0.12      36.84     0.11
 18   2.9003  17286.91    -0.43     166.39     0.12
 19   2.9006  17281.69     0.26     166.02    -0.32
 20   3.7985  24120.33     0.32     152.43    -0.10
 21   3.7987  24116.90    -0.28     151.87    -0.86
 22   8.9537  45742.59    -0.14     521.82     0.08
 23   8.9565  45666.88    -0.00     521.86     0.19
 24   8.9590  45598.50     0.15     521.65     0.09

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.

05JP179    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.681    42.709    42.652
ecceobj         0.024     0.025     0.024
incobj          2.096     2.096     2.096
qmin           40.749    40.785    40.709
qmax           45.426    45.440    45.329
amean          42.987    43.016    42.958
amin           42.656    42.691    42.628
amax           43.329    43.355    43.296
emean           0.029     0.029     0.028
emin            0.009     0.011     0.008
emax            0.049     0.049     0.048
imean           2.068     2.054     2.081
imin            0.982     0.982     0.984
imax            2.859     2.838     2.884
excite_mean     0.047     0.047     0.047
fracstop        1.000     1.000     1.000
cjmean          3.087     3.087     3.086

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       182.6     182.2     182.8
kozaiamp        179.9     180.0     179.9