Orbit Fit and Astrometric record for 06SH415

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: 06SH415   
# Created Fri Dec  3 02:10:30 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     29 observations of     29
# Arc:  13.90y
# First observation: 2006/09/18
#  Last observation: 2020/08/12
# Chi-squared of fit:    66.60 DOF:     52 RMS:  0.27
# Min/Max residuals:    -0.67    0.88
# Exact a, adot, b, bdot, g, gdot:
  1.825878E-05  2.829935E-02  5.676442E-06  1.044458E-02  2.685954E-02 -3.236670E-03
# Covariance matrix:
  1.5157E-13 -4.4475E-14  1.8222E-14 -1.1183E-14  2.3888E-14 -7.3947E-14
 -4.4475E-14  2.4848E-14 -1.2175E-14  7.2584E-15 -3.0565E-14  4.8280E-14
  1.8222E-14 -1.2175E-14  1.0807E-13 -1.5425E-14  1.3215E-14 -2.6713E-14
 -1.1183E-14  7.2584E-15 -1.5425E-14  5.0322E-15 -2.1182E-15  1.6584E-14
  2.3888E-14 -3.0565E-14  1.3215E-14 -2.1182E-15  4.2788E-13 -2.1984E-14
 -7.3947E-14  4.8280E-14 -2.6713E-14  1.6584E-14 -2.1984E-14  1.0941E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   15.617708  -14.310553   -0.171583    0.267361   -0.956074  2453996.926384
# Heliocentric elements and errors
Epoch:              2453996.5000  =  2006/09/18
Mean Anomaly:          342.20570 +/-     0.007
Argument of Peri:       68.49843 +/-     0.010
Long of Asc Node:      310.34966 +/-     0.000
Inclination:            25.04601 +/-     0.000
Eccentricity:         0.25162753 +/-    0.0001
Semi-Major Axis:     49.63527925 +/-    0.0072
Time of Perihelion: 2460309.8903 +/-      26.5
Perihelion:          37.14567633 +/-    0.0068
Aphelion:            62.12488217 +/-    0.0099
Period (y)              349.6986 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.74512501 +/-    0.0008
Ecliptic Y           -8.94494402 +/-    0.0002
Ecliptic Z           10.02337797 +/-    0.0002
Ecliptic XDOT         0.00013213 +/-    0.0000
Ecliptic YDOT         0.00293976 +/-    0.0000
Ecliptic ZDOT         0.00093646 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.18637603 +/-    0.0008
Geocenter to KBO     37.23083732 +/-    0.0009
# Hcoef:  7.91

The following table shows the complete astrometric record for 06SH415. 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 (06SH415) followed by the observatory code and reference code for the source of the astrometry.

2006 09  18.42563  22 43 05.12   +08 45 39.1   23.5r 06SH415   568  C~1QdF      
2006 09  18.45610  22 43 04.97   +08 45 38.2   23.6r 06SH415   568  C~1QdF      
2006 09  18.49118  22 43 04.80   +08 45 37.5   23.7r 06SH415   568  C~1QdF      
2006 09  20.26311  22 42 56.30   +08 44 45.2   23.4r 06SH415   568  C~1QdF      
2007 09  14.27098  22 48 34.71   +09 58 45.5   23.5r 06SH415   568  C~1QdF      
2007 09  14.30181  22 48 34.53   +09 58 44.8   23.4r 06SH415   568  C~1QdF      
2007 09  14.32586  22 48 34.42   +09 58 44.0   23.3r 06SH415   568  C~1QdF      
2007 09  16.29054  22 48 24.63   +09 57 49.1   23.5R 06SH415   675  C~1QdF      
2007 09  16.35622  22 48 24.29   +09 57 47.4         06SH415   675  C~1QdF      
2007 11  08.17188  22 45 15.04   +09 30 01.7   24.4r 06SH415   695  C~1QdF      
2007 11  09.13680  22 45 13.57   +09 29 34.7   24.2r 06SH415   695  C~1QdF      
2008 08  30.32714  22 54 59.43   +11 15 38.9   23.4r 06SH415   568  C~1QdF      
2008 08  30.35793  22 54 59.27   +11 15 38.4   23.5r 06SH415   568  C~1QdF      
2008 08  30.38894  22 54 59.11   +11 15 37.7   23.5r 06SH415   568  C~1QdF      
2008 08  31.30935  22 54 54.43   +11 15 18.4         06SH415   568  C~1QdF      
2009 09  13.29166  22 59 06.69   +12 21 31.3         06SH415   568  C~1QdF      
2009 09  15.31521  22 58 56.43   +12 20 35.0         06SH415   568  C~1QdF      
2009 09  16.25480  22 58 51.69   +12 20 08.8         06SH415   568  C~1QdF      
2013 07  08.53625  23 25 30.55   +17 06 26.6         06SH415   568  C~1QdF      
2013 07  15.61457  23 25 16.23   +17 09 14.2         06SH415   568  C~1QdF      
2013 07  16.51048  23 25 14.11   +17 09 32.6         06SH415   568  C~1QdF      
2013 08  08.48634  23 23 57.49   +17 13 44.9         06SH415   568  C~1QdF      
2013 09  03.34414  23 21 54.50   +17 10 01.7         06SH415   568  C~1QdF      
2013 09  06.31062  23 21 39.05   +17 09 04.0         06SH415   568  C~1QdF      
2013 10  02.37462  23 19 24.63   +16 56 58.3         06SH415   568  C~1QdF      
2013 10  06.32860  23 19 05.70   +16 54 40.8         06SH415   568  C~1QdF      
2020 08  12.328940 00 05 32.581  +25 10 27.34  23.6G 06SH415   G37  C~43so      
2020 08  12.395700 00 05 32.312  +25 10 27.77        06SH415   G37  C~43so      
2020 08  12.465640 00 05 32.038  +25 10 28.53        06SH415   G37  C~43so      

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    -0.35       0.00    -0.04
     2   0.0001      0.00    -0.35       0.00    -0.05
     3   0.0002      0.00    -0.31       0.00     0.27
     4   0.0050      0.00    -0.34       0.00    -0.14
     5   0.9879      0.00     0.41       0.00     0.21
     6   0.9880      0.00     0.05       0.00     0.36
     7   0.9881      0.00     0.23       0.00     0.22
     8   0.9935      0.00     0.02       0.00     0.27
     9   0.9936      0.00    -0.12       0.00     0.44
    10   1.1383      0.00     0.46       0.00    -0.67
    11   1.1409      0.00     0.37       0.00    -0.47
    12   1.9491      0.00    -0.05       0.00    -0.25
    13   1.9492      0.00    -0.07       0.00    -0.12
    14   1.9492      0.00    -0.06       0.00    -0.19
    15   1.9518      0.00    -0.08       0.00    -0.44
    16   2.9866      0.00    -0.00       0.00     0.88
    17   2.9922      0.00     0.26       0.00    -0.06
    18   2.9947      0.00     0.34       0.00     0.07
    19   6.8039      0.00    -0.13       0.00    -0.10
    20   6.8232      0.00     0.12       0.00    -0.10
    21   6.8257      0.00     0.19       0.00    -0.13
    22   6.8886      0.00    -0.33       0.00     0.02
    23   6.9594      0.00    -0.00       0.00     0.21
    24   6.9675      0.00    -0.17       0.00    -0.10
    25   7.0389      0.00    -0.27       0.00     0.01
    26   7.0497      0.00     0.14       0.00    -0.24
    27  13.8998      0.00     0.08       0.00     0.25
    28  13.9000      0.00    -0.04       0.00    -0.05
    29  13.9002      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.

06SH415    quality flag:2

Type:       SCATNEAR  SCATEXTD  SCATEXTD

axisobj        50.181    50.181    50.181
ecceobj         0.260     0.260     0.260
incobj         25.042    25.042    25.042
qmin           36.444    36.428    36.449
qmax           63.839    63.820    63.811
amean          49.832    49.831    49.833
amin           49.390    49.381    49.393
amax           50.392    50.376    50.376
emean           0.249     0.249     0.249
emin            0.233     0.232     0.233
emax            0.267     0.267     0.267
imean          26.616    26.616    26.617
imin           26.341    26.347    26.343
imax           26.919    26.926    26.919
excite_mean     0.513     0.513     0.513
fracstop        1.000     1.000     1.000
cjmean          2.832     2.832     2.832

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       181.7     181.5     181.6
kozaiamp        180.0     180.0     180.0