Orbit Fit and Astrometric record for 385607

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: 385607    
# Created Tue Dec 12 02:36:48 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   28 observations of   28
# Arc:   8.01y
# First observation: 2005/03/11
#  Last observation: 2013/03/14
# Chi-squared of fit:    75.78 DOF:   50 RMS:  0.29
# Min/Max residuals:    -0.50    1.23
# Exact a, adot, b, bdot, g, gdot:
  1.527252E-05  2.521721E-02  9.624465E-06  1.176265E-02  2.466047E-02  1.468204E-03
# 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
    1.267240  146.137511   -0.408869    0.020023   -0.900587  2453440.657713
# Heliocentric elements and errors
Epoch:              2453440.5000  =  2005/03/11
Mean Anomaly:            6.04594 +/-     0.000
Argument of Peri:      349.59958 +/-     0.000
Long of Asc Node:      144.04573 +/-     0.000
Inclination:            24.99450 +/-     0.000
Eccentricity:         0.34981967 +/-    0.0000
Semi-Major Axis:     63.31643057 +/-    0.0000
Time of Perihelion: 2450349.9598 +/-       0.0
Perihelion:          41.16709801 +/-    0.0000
Aphelion:            85.46576313 +/-    0.0000
Period (y)              503.8286 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -34.64464780 +/-    0.0000
Ecliptic Y           22.75109985 +/-    0.0000
Ecliptic Z            0.89720513 +/-    0.0000
Ecliptic XDOT        -0.00167122 +/-    0.0000
Ecliptic YDOT        -0.00225721 +/-    0.0000
Ecliptic ZDOT         0.00130926 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.45679122 +/-    0.0000
Geocenter to KBO     40.55072309 +/-    0.0000
# Hcoef:  7.18

The following table shows the complete astrometric record for 385607. 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 (385607) followed by the observatory code and reference code for the source of the astrometry.

2005 03  11.15697  09 55 17.71   +13 59 50.8   23.1R 385607    695  Cn0310      
2005 03  12.21925  09 55 13.32   +14 00 20.9         385607    695  Cn0310      
2005 03  12.30009  09 55 12.95   +14 00 22.9         385607    695  Cn0310      
2005 04  12.17752  09 53 33.69   +14 12 00.5   23.3R 385607    695  Cn3133      
2005 04  12.24907  09 53 33.54   +14 12 01.8         385607    695  Cn3133      
2005 04  13.18805  09 53 31.57   +14 12 16.9         385607    695  Cn3133      
2006 03  02.23948  10 02 30.67   +14 03 28.3   22.7R 385607    695  Cr3594      
2006 03  02.29732  10 02 30.40   +14 03 29.9         385607    695  Cr3594      
2006 03  02.35194  10 02 30.14   +14 03 31.4         385607    695  Cr3594      
2006 04  26.02184  09 59 40.74   +14 23 13.9   22.5R 385607    807  Cr3594      
2006 04  26.10761  09 59 40.64   +14 23 14.9         385607    807  Cr3594      
2006 04  27.03596  09 59 39.65   +14 23 23.6         385607    807  Cr3594      
2006 12  21.38806  10 13 26.69   +13 36 24.7   23.6R 385607    695  Ct5520      
2006 12  21.52828  10 13 26.48   +13 36 27.2         385607    695  Ct5520      
2007 02  15.20412  10 10 12.71   +14 02 46.4         385607    304  Cu1516      
2007 02  15.24767  10 10 12.52   +14 02 47.8         385607    304  Cu1516      
2007 02  15.27836  10 10 12.36   +14 02 48.9         385607    304  Cu1516      
2007 02  21.36126  10 09 44.34   +14 06 05.1   23.0R 385607    695  Cu3067      
2007 02  21.47276  10 09 43.85   +14 06 08.7         385607    695  Cu3067      
2008 03  04.37859  10 15 21.23   +14 19 02.5         385607    695  Cy7595      
2008 03  05.23919  10 15 17.39   +14 19 28.6         385607    695  Cy7595      
2008 03  05.25035  10 15 17.35   +14 19 28.8         385607    695  Cy7595      
2008 03  05.34011  10 15 16.94   +14 19 31.7         385607    695  Cy7595      
2008 06  06.97222  10 12 55.15   +14 37 01.2         385607    807  Cz1384      
2008 06  08.01548  10 12 57.70   +14 36 49.0         385607    807  Cz1384      
2013 03  13.33009  10 46 50.01   +14 47 26.0   23.2R 385607    695  C~0udE      
2013 03  14.30310  10 46 45.80   +14 47 55.2         385607    695  C~0udE      
2013 03  14.41323  10 46 45.30   +14 47 58.6         385607    695  C~0udE      

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    -0.18       0.00     1.23
  2   0.0029      0.00     0.19       0.00    -0.14
  3   0.0031      0.00    -0.28       0.00    -0.40
  4   0.0877      0.00     0.01       0.00    -0.19
  5   0.0879      0.00     0.12       0.00    -0.05
  6   0.0904      0.00    -0.17       0.00    -0.12
  7   0.9749      0.00     0.46       0.00     0.21
  8   0.9751      0.00     0.37       0.00     0.04
  9   0.9752      0.00     0.21       0.00    -0.12
 10   1.1249      0.00     0.03       0.00     0.15
 11   1.1251      0.00     0.05       0.00     0.31
 12   1.1277      0.00    -0.12       0.00     0.05
 13   1.7802      0.00    -0.30       0.00    -0.28
 14   1.7806      0.00     0.09       0.00    -0.50
 15   1.9331      0.00    -0.26       0.00     0.52
 16   1.9332      0.00    -0.05       0.00     0.50
 17   1.9333      0.00    -0.30       0.00     0.60
 18   1.9499      0.00    -0.03       0.00    -0.24
 19   1.9502      0.00     0.43       0.00    -0.20
 20   2.9821      0.00     0.20       0.00     0.32
 21   2.9845      0.00     0.03       0.00     0.06
 22   2.9845      0.00     0.18       0.00    -0.08
 23   2.9848      0.00     0.13       0.00     0.09
 24   3.2411      0.00    -0.06       0.00    -0.07
 25   3.2440      0.00    -0.22       0.00     0.01
 26   8.0059      0.00    -0.10       0.00    -0.24
 27   8.0086      0.00     0.25       0.00    -0.18
 28   8.0089      0.00     0.03       0.00    -0.05

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.

385607    quality flag:3

Type:          3:1EE     3:1EE     3:1EE

axisobj        62.730    62.730    62.730
ecceobj         0.344     0.344     0.344
incobj         25.062    25.062    25.062
qmin           40.270    40.270    40.277
qmax           86.534    86.526    86.496
amean          62.629    62.629    62.629
amin           61.758    61.742    61.762
amax           63.708    63.730    63.703
emean           0.343     0.343     0.343
emin            0.330     0.330     0.330
emax            0.358     0.358     0.358
imean          23.720    23.721    23.738
imin           23.490    23.490    23.495
imax           24.014    24.013    24.014
excite_mean     0.529     0.529     0.529
fracstop        1.000     1.000     1.000
cjmean          2.961     2.961     2.961

libcent 0       179.9     179.4     181.1
libamp  0       173.3     172.8     174.2
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       166.3     166.4     167.8
kozaiamp        180.0     180.0     180.0