Orbit Fit and Astrometric record for 06SG415

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: 06SG415   
# Created Tue Oct 24 01:37:40 2017
# Orbit generated from Bernstein formalism
# Fitting   35 observations of   36
# Arc:   8.02y
# First observation: 2005/09/28
#  Last observation: 2013/10/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.003381   0.032614   0.001764  -0.017264   0.029518   0.000000
# Chi-squared of fit:    60.64 DOF:   64 RMS:  0.23
# Min/Max residuals:    -0.48    0.58
# Exact a, adot, b, bdot, g, gdot:
  1.580929E-05  3.049385E-02 -8.625226E-06 -1.619759E-02  2.919432E-02 -4.713050E-03
# Covariance matrix:
  2.5487E-13 -1.2088E-13 -6.9620E-14  5.0263E-14 -9.3819E-15 -3.2584E-13
 -1.2088E-13  7.7670E-14  4.9453E-14 -3.5821E-14  1.3887E-15  2.3231E-13
 -6.9620E-14  4.9453E-14  1.5025E-13 -4.5865E-14  1.8575E-14  1.6441E-13
  5.0263E-14 -3.5821E-14 -4.5865E-14  2.3822E-14 -9.2981E-15 -1.1792E-13
 -9.3819E-15  1.3887E-15  1.8575E-14 -9.2981E-15  1.8642E-13  5.7016E-14
 -3.2584E-13  2.3231E-13  1.6441E-13 -1.1792E-13  5.7016E-14  7.6383E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   14.842234  -18.741580   -0.407924    0.235721   -0.889144  2453641.716134
# Heliocentric elements and errors
Epoch:              2453640.5000  =  2005/09/27
Mean Anomaly:          342.88077 +/-     0.005
Argument of Peri:      183.08593 +/-     0.008
Long of Asc Node:      186.89609 +/-     0.000
Inclination:            31.43030 +/-     0.000
Eccentricity:         0.28919857 +/-    0.0001
Semi-Major Axis:     47.78653280 +/-    0.0044
Time of Perihelion: 2459378.2095 +/-       1.4
Perihelion:          33.96673608 +/-    0.0040
Aphelion:            61.60632952 +/-    0.0062
Period (y)              330.3440 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.35306999 +/-    0.0005
Ecliptic Y          -10.54873500 +/-    0.0002
Ecliptic Z            8.77398918 +/-    0.0001
Ecliptic XDOT         0.00088472 +/-    0.0000
Ecliptic YDOT         0.00271375 +/-    0.0000
Ecliptic ZDOT        -0.00158153 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.14227986 +/-    0.0004
Geocenter to KBO     34.25323669 +/-    0.0005
# Hcoef:  7.93

The following table shows the complete astrometric record for 06SG415. 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 (06SG415) followed by the observatory code and reference code for the source of the astrometry.

2005 09  28.215391 22 28 21.79   +06 24 02.1   22.6V 06SG415   645  C~1ReL      
2005 09  28.216220 22 28 21.79   +06 24 02.0   23.1V 06SG415   645  C~1ReL      
2005 09  28.218708 22 28 21.78   +06 24 01.9   23.6V 06SG415   645  C~1ReL      
2006 09  18.40385  22 37 04.87   +06 19 43.5   23.2r 06SG415   568  C~1QdE      
2006 09  18.43913  22 37 04.69   +06 19 41.8   23.3r 06SG415   568  C~1QdF      
2006 09  18.47434  22 37 04.51   +06 19 40.2   23.3r 06SG415   568  C~1QdF      
2006 11  24.20027  22 34 21.06   +05 31 28.8         06SG415   695  C~1QdF      
2006 11  25.13674  22 34 21.84   +05 31 00.0         06SG415   695  C~1QdF      
2007 09  12.33987  22 45 38.13   +06 11 44.8   22.7r 06SG415   695  C~1QdF      
2007 09  12.39245  22 45 37.87   +06 11 42.2   22.6r 06SG415   695  C~1QdF      
2007 09  14.29006  22 45 28.35   +06 10 17.2   23.1r 06SG415   568  C~1QdF      
2007 09  14.31784  22 45 28.20   +06 10 16.0   23.0r 06SG415   568  C~1QdF      
2007 09  14.34207  22 45 28.08   +06 10 14.9   23.1r 06SG415   568  C~1QdF      
2007 11  09.12129  22 42 16.00   +05 27 55.1   24.4r 06SG415   695  C~1QdF      
2007 11  09.18539  22 42 15.92   +05 27 52.5   24.4r 06SG415   695  C~1QdF      
2008 08  30.33054  22 54 46.88   +06 07 00.6   23.1r 06SG415   568  C~1QdF      
2008 08  30.36130  22 54 46.72   +06 06 59.4   23.2r 06SG415   568  C~1QdF      
2008 08  30.39232  22 54 46.56   +06 06 58.3   23.0r 06SG415   568  C~1QdF      
2008 08  31.31283  22 54 41.86   +06 06 21.9         06SG415   568  C~1QdF      
2008 11  17.065164 22 50 06.35   +05 09 33.9         06SG415   645  C~1ReL      
2008 11  17.065994 22 50 06.35   +05 09 33.9         06SG415   645  C~1ReL      
2008 11  17.068481 22 50 06.34   +05 09 33.8         06SG415   645  C~1ReL      
2009 07  24.39846  23 05 38.93   +06 10 45.5         06SG415   675  C~1QdF      
2009 07  25.37564  23 05 35.68   +06 10 29.6         06SG415   675  C~1QdF      
2009 07  25.47709  23 05 35.32   +06 10 28.0         06SG415   675  C~1QdF      
2009 09  15.31827  23 01 36.23   +05 42 14.3         06SG415   568  C~1QdF      
2009 09  16.25814  23 01 31.49   +05 41 32.1         06SG415   568  C~1QdF      
2013 07  06.17660  23 38 55.58   +05 14 24.5         06SG415   950  C~1QdF      
2013 07  07.12119  23 38 54.78   +05 14 20.7         06SG415   950  C~1QdF      
2013 07  08.55428  23 38 53.45   +05 14 14.2         06SG415   568  C~1QdF      
2013 08  08.49616  23 37 37.04   +05 05 48.5         06SG415   568  C~1QdF      
2013 08  11.58834  23 37 25.13   +05 04 22.3         06SG415   568  C~1QdF      
2013 09  03.35139  23 35 41.78   +04 51 06.5         06SG415   568  C~1QdF      
2013 09  06.31934  23 35 26.87   +04 49 04.7         06SG415   568  C~1QdF      
2013 10  02.38234  23 33 14.43   +04 29 37.9         06SG415   568  C~1QdF      
2013 10  06.33921  23 32 55.40   +04 26 33.7         06SG415   568  C~1QdF      

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     0.15       0.00    -0.03
  2   0.0000     -0.04     0.17      -0.09    -0.11
  3   0.0000     -0.21     0.19      -0.13    -0.09
  4   0.9725   7128.05    -0.26   -3181.53    -0.16
  5   0.9725   7124.92    -0.38   -3182.10    -0.19
  6   0.9726   7121.83    -0.48   -3182.58    -0.13
  7   1.1553   3772.64     0.21   -4945.89     0.44
  8   1.1579   3772.59     0.16   -4976.98     0.17
  9   1.9552  14072.19     0.27   -6492.87     0.58
 10   1.9553  14067.61     0.29   -6493.84     0.27
 11   1.9605  13903.42    -0.36   -6519.94    -0.44
 12   1.9606  13900.88    -0.47   -6520.22    -0.36
 13   1.9606  13898.80    -0.43   -6520.58    -0.39
 14   2.1134  10279.51    -0.01   -7810.53    -0.09
 15   2.1135  10277.42    -0.09   -7812.50    -0.15
 16   2.9216  21640.89     0.11   -9810.57     0.27
 17   2.9217  21638.20     0.10   -9810.80     0.28
 18   2.9218  21635.54     0.15   -9810.94     0.37
 19   2.9243  21556.04    -0.11   -9818.91     0.22
 20   3.1372  16430.22     0.18  -11469.13    -0.35
 21   3.1372  16430.22     0.20  -11469.13    -0.33
 22   3.1372  16430.04     0.07  -11469.17    -0.29
 23   3.8198  30953.06     0.25  -13220.55     0.12
 24   3.8225  30900.86     0.13  -13217.51     0.09
 25   3.8228  30895.14     0.02  -13217.02     0.22
 26   3.9647  26872.07     0.12  -13483.46     0.19
 27   3.9673  26789.31     0.13  -13496.76     0.17
 28   7.7699  59193.45     0.08  -27761.41     0.05
 29   7.7725  59179.77     0.03  -27760.51     0.01
 30   7.7764  59156.97 (   1.14) -27759.18 (   0.02)
 31   7.8611  57800.88     0.17  -27812.98     0.05
 32   7.8696  57587.21    -0.14  -27828.53    -0.05
 33   7.9319  55719.82    -0.10  -28009.19     0.14
 34   7.9401  55448.48    -0.10  -28041.93    -0.11
 35   8.0114  53013.90    -0.07  -28413.57    -0.14
 36   8.0222  52659.00    -0.15  -28482.78    -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.

06SG415    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        48.246    48.259    48.233
ecceobj         0.297     0.297     0.296
incobj         31.316    31.316    31.316
qmin           33.215    32.174    31.178
qmax           63.631    64.461    65.865
amean          47.816    47.797    47.800
amin           47.045    47.087    46.985
amax           48.646    48.628    48.753
emean           0.274     0.280     0.302
emin            0.238     0.250     0.273
emax            0.308     0.330     0.351
imean          31.490    31.414    30.821
imin           30.850    30.247    29.686
imax           32.255    32.022    31.462
excite_mean     0.590     0.592     0.595
fracstop        1.000     1.000     1.000
cjmean          2.696     2.694     2.692

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       184.8     212.3     181.1
kozaiamp        180.0     180.0     179.9