Orbit Fit and Astrometric record for 05JB186

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: 05JB186   
# Created Sat Oct 21 01:37:36 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:  11.05y
# First observation: 2004/05/24
#  Last observation: 2015/06/12
Preliminary a, adot, b, bdot, g, gdot:
  -0.000939   0.028359  -0.000651   0.010424   0.028936   0.000000
# Chi-squared of fit:    11.03 DOF:   42 RMS:  0.12
# Min/Max residuals:    -0.36    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.568555E-05  2.683042E-02  6.113781E-06  9.835299E-03  2.700160E-02 -2.023297E-03
# Covariance matrix:
  2.6783E-13 -1.9795E-13  5.8722E-14 -6.8978E-14 -1.5169E-14 -5.6123E-13
 -1.9795E-13  3.1061E-13 -9.9738E-14  1.1556E-13  2.8130E-13  9.3861E-13
  5.8722E-14 -9.9738E-14  1.3928E-13 -4.8748E-14 -9.6747E-14 -3.0427E-13
 -6.8978E-14  1.1556E-13 -4.8748E-14  4.6050E-14  1.0904E-13  3.5239E-13
 -1.5169E-14  2.8130E-13 -9.6747E-14  1.0904E-13  7.6211E-13  8.8246E-13
 -5.6123E-13  9.3861E-13 -3.0427E-13  3.5239E-13  8.8246E-13  2.8620E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.909099 -126.939426   -0.187259   -0.033107   -0.994764  2453149.872103
# Heliocentric elements and errors
Epoch:              2453140.5000  =  2004/05/15
Mean Anomaly:          327.19070 +/-     0.028
Argument of Peri:       34.78623 +/-     0.034
Long of Asc Node:      238.39405 +/-     0.000
Inclination:            20.21234 +/-     0.000
Eccentricity:         0.10630373 +/-    0.0001
Semi-Major Axis:     41.59004665 +/-    0.0053
Time of Perihelion: 2462068.9683 +/-       7.3
Perihelion:          37.16886973 +/-    0.0060
Aphelion:            46.01122357 +/-    0.0069
Period (y)              268.2207 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.69644086 +/-    0.0007
Ecliptic Y          -30.49100838 +/-    0.0010
Ecliptic Z           -1.23351824 +/-    0.0000
Ecliptic XDOT         0.00227499 +/-    0.0000
Ecliptic YDOT        -0.00150458 +/-    0.0000
Ecliptic ZDOT         0.00100366 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.03092934 +/-    0.0009
Geocenter to KBO     37.03484425 +/-    0.0012
# Hcoef:  7.78

The following table shows the complete astrometric record for 05JB186. 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 (05JB186) followed by the observatory code and reference code for the source of the astrometry.

2004 05  24.37136  15 20 36.28   -20 23 04.6   23.4R 05JB186   568  C~0VE1      
2004 05  24.39644  15 20 36.15   -20 23 03.8   23.3R 05JB186   568  C~0VE1      
2004 05  24.41896  15 20 36.03   -20 23 03.2   23.3R 05JB186   568  C~0VE1      
2004 05  25.38026  15 20 30.99   -20 22 38.7         05JB186   568  C~0VE1      
2005 05  14.40334  15 28 29.43   -20 17 38.8   23.3r 05JB186   568  C74770      
2005 05  14.43701  15 28 29.23   -20 17 38.1   23.4r 05JB186   568  C74770      
2005 05  14.47570  15 28 29.03   -20 17 37.0   23.4r 05JB186   568  C74770      
2005 05  17.38052  15 28 13.37   -20 16 24.6   24.1r 05JB186   568  C74770      
2005 07  08.32920  15 24 22.67   -19 56 47.1   22.2r 05JB186   568  C~0VE1      
2005 07  08.37154  15 24 22.56   -19 56 46.4   22.3r 05JB186   568  C~0VE1      
2005 08  02.07868  15 23 43.84   -19 51 18.6         05JB186   309  C~0VE1      
2005 08  02.08278  15 23 43.84   -19 51 18.7         05JB186   309  C~0VE1      
2005 08  03.07201  15 23 43.57   -19 51 10.0         05JB186   309  C~0VE1      
2005 08  03.07620  15 23 43.56   -19 51 09.9         05JB186   309  C~0VE1      
2006 06  30.26826  15 31 44.08   -19 49 05.0   23.7r 05JB186   568  C~0VE1      
2006 07  01.29008  15 31 40.45   -19 48 45.4   23.9r 05JB186   568  C~0VE1      
2006 07  01.30314  15 31 40.40   -19 48 45.5   23.4r 05JB186   568  C~0VE1      
2015 05  22.30416  16 37 41.23   -17 39 13.2   23.3R 05JB186   695  C~1hTi      
2015 05  22.34068  16 37 41.06   -17 39 12.4         05JB186   695  C~1hTi      
2015 05  22.36446  16 37 40.93   -17 39 11.9         05JB186   695  C~1hTi      
2015 05  22.41167  16 37 40.66   -17 39 10.9         05JB186   695  C~1hTi      
2015 06  12.21782  16 35 46.78   -17 33 19.6   23.4R 05JB186   695  C~1hTi      
2015 06  12.26594  16 35 46.51   -17 33 18.9         05JB186   695  C~1hTi      
2015 06  12.31896  16 35 46.21   -17 33 17.9         05JB186   695  C~1hTi      

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     0.01       0.00    -0.07
  2   0.0001     -1.97     0.03       0.31     0.09
  3   0.0001     -3.76     0.03       0.46     0.11
  4   0.0028    -78.53     0.09       6.07    -0.17
  5   0.9720   6365.72     0.04    1974.76    -0.06
  6   0.9721   6362.82    -0.13    1974.76    -0.24
  7   0.9722   6359.82     0.01    1975.14    -0.06
  8   0.9802   6128.26     0.08    1991.65     0.06
  9   1.1224   2686.89    -0.13    2330.85     0.05
 10   1.1225   2685.21     0.02    2331.14     0.04
 11   1.1902   2074.38     0.04    2512.00     0.08
 12   1.1902   2074.40     0.09    2511.90    -0.04
 13   1.1929   2068.53    -0.04    2519.37     0.12
 14   1.1929   2068.37    -0.18    2519.43     0.15
 15   2.0996   8618.12    -0.01    4302.08    -0.06
 16   2.1024   8563.60     0.01    4308.86     0.18
 17   2.1025   8562.93     0.06    4308.59    -0.16
 18  10.9923  64496.12    -0.36   23541.33    -0.19
 19  10.9924  64493.34     0.10   23541.75     0.04
 20  10.9925  64491.23     0.10   23541.95     0.12
 21  10.9926  64486.86    -0.09   23542.32     0.24
 22  11.0495  62657.99     0.20   23624.55    -0.09
 23  11.0497  62653.68     0.12   23624.60    -0.15
 24  11.0498  62648.86    -0.05   23624.89     0.01

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.

05JB186    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.244    41.259    41.229
ecceobj         0.103     0.103     0.103
incobj         20.278    20.278    20.278
qmin           36.316    36.289    36.314
qmax           46.958    47.051    46.917
amean          41.515    41.532    41.501
amin           41.178    41.212    41.170
amax           41.870    41.887    41.851
emean           0.107     0.108     0.107
emin            0.094     0.094     0.094
emax            0.122     0.124     0.122
imean          21.570    21.568    21.573
imin           20.979    20.984    20.977
imax           22.091    22.089    22.098
excite_mean     0.383     0.383     0.383
fracstop        1.000     1.000     1.000
cjmean          2.896     2.896     2.895

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       173.6     173.5     173.7
kozaiamp        180.0     180.0     180.0