Orbit Fit and Astrometric record for 149348

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: 149348    
# Created Mon Dec 11 02:36:40 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:   5.81y
# First observation: 2002/11/07
#  Last observation: 2008/08/28
# Chi-squared of fit:    23.71 DOF:   42 RMS:  0.18
# Min/Max residuals:    -0.30    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.613301E-05  2.515703E-02 -3.164763E-07 -1.015749E-03  2.481359E-02  2.342560E-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
    1.956694   56.103648    0.199616    0.033028   -0.967347  2452585.824573
# Heliocentric elements and errors
Epoch:              2452586.5000  =  2002/11/08
Mean Anomaly:           38.98779 +/-     0.000
Argument of Peri:       91.11538 +/-     0.000
Long of Asc Node:      275.71010 +/-     0.000
Inclination:             2.97838 +/-     0.000
Eccentricity:         0.12268866 +/-    0.0000
Semi-Major Axis:     45.27757083 +/-    0.0000
Time of Perihelion: 2440534.7740 +/-       0.0
Perihelion:          39.72252651 +/-    0.0000
Aphelion:            50.83261515 +/-    0.0000
Period (y)              304.6722 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.16615482 +/-    0.0000
Ecliptic Y           34.12927430 +/-    0.0000
Ecliptic Z            1.37601683 +/-    0.0000
Ecliptic XDOT        -0.00216525 +/-    0.0000
Ecliptic YDOT         0.00176217 +/-    0.0000
Ecliptic ZDOT        -0.00010298 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.27186632 +/-    0.0000
Geocenter to KBO     40.30047788 +/-    0.0000
# Hcoef:  6.34

The following table shows the complete astrometric record for 149348. 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 (149348) followed by the observatory code and reference code for the source of the astrometry.

2002 11  07.32383  03 33 09.91   +21 10 50.0   21.8R 149348    695  Cg8319      
2002 11  07.41952  03 33 09.42   +21 10 48.4         149348    695  Cg8319      
2002 11  27.18611  03 31 27.61   +21 04 46.5   22.2R 149348    688  Cg8319      
2002 11  27.23650  03 31 27.36   +21 04 45.8         149348    688  Cg8319      
2002 11  28.17513  03 31 22.62   +21 04 28.3   21.9R 149348    688  Cg8319      
2002 11  28.27016  03 31 22.12   +21 04 26.1         149348    688  Cg8319      
2002 12  02.20370  03 31 02.33   +21 03 12.5   22.0R 149348    688  Cg8319      
2002 12  02.30473  03 31 01.81   +21 03 10.8         149348    688  Cg8319      
2003 01  03.09803  03 28 48.23   +20 54 14.4   22.4R 149348    688  Ch0066      
2003 01  03.21203  03 28 47.86   +20 54 13.2         149348    688  Ch0066      
2003 10  23.40258  03 40 26.96   +21 31 28.8   21.8R 149348    695  Cj4694      
2003 10  23.49117  03 40 26.55   +21 31 27.5         149348    695  Cj4694      
2003 11  21.27171  03 38 03.39   +21 23 38.4   21.6R 149348    695  Cj4694      
2003 11  21.34909  03 38 02.98   +21 23 37.0         149348    695  Cj4694      
2005 10  01.40867  03 53 49.66   +22 05 18.5   22.5R 149348    688  Co3857      
2005 10  01.48385  03 53 49.44   +22 05 18.1         149348    688  Co3857      
2006 12  21.12583  03 53 40.89   +22 01 00.8   22.2R 149348    695  Ct5482      
2006 12  21.21609  03 53 40.49   +22 00 59.6         149348    695  Ct5482      
2007 09  16.49379  04 06 15.65   +22 32 23.5   22.2R 149348    675  Cy7541      
2007 09  17.42869  04 06 14.55   +22 32 22.2         149348    675  Cy7541      
2008 08  28.20726  04 12 12.31   +22 43 34.1   23.4R 149348    250  S~06He      
2008 08  28.21351  04 12 12.32   +22 43 34.1         149348    250  S~06He      
2008 08  28.22462  04 12 12.33   +22 43 34.2         149348    250  S~06He      
2008 08  28.23087  04 12 12.34   +22 43 34.2         149348    250  S~06He      

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     0.04       0.00     0.16
  2   0.0003      0.00     0.11       0.00     0.02
  3   0.0544      0.00    -0.13       0.00    -0.02
  4   0.0545      0.00     0.03       0.00     0.21
  5   0.0571      0.00     0.46       0.00     0.33
  6   0.0573      0.00     0.30       0.00    -0.10
  7   0.0681      0.00     0.06       0.00    -0.05
  8   0.0684      0.00    -0.08       0.00     0.14
  9   0.1554      0.00    -0.04       0.00     0.01
 10   0.1558      0.00    -0.07       0.00     0.39
 11   0.9585      0.00    -0.06       0.00    -0.25
 12   0.9587      0.00    -0.15       0.00    -0.30
 13   1.0375      0.00     0.02       0.00    -0.18
 14   1.0377      0.00    -0.00       0.00    -0.19
 15   2.8996      0.00     0.08       0.00     0.13
 16   2.8998      0.00     0.06       0.00     0.24
 17   4.1199      0.00    -0.01       0.00    -0.20
 18   4.1202      0.00     0.15       0.00    -0.04
 19   4.8574      0.00     0.25       0.00    -0.21
 20   4.8600      0.00     0.34       0.00    -0.13
 21   5.8067      0.00    -0.15       0.00     0.19
 22   5.8067      0.00    -0.08       0.00     0.16
 23   5.8067      0.00    -0.08       0.00     0.22
 24   5.8067      0.00    -0.01       0.00     0.19

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.

149348    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.497    45.498    45.497
ecceobj         0.128     0.128     0.128
incobj          2.982     2.982     2.982
qmin           38.787    38.814    38.845
qmax           51.780    51.848    51.769
amean          45.103    45.096    45.102
amin           44.707    44.703    44.717
amax           45.546    45.564    45.547
emean           0.123     0.121     0.122
emin            0.107     0.104     0.106
emax            0.137     0.139     0.137
imean           4.842     4.800     4.840
imin            4.161     4.137     4.166
imax            5.419     5.396     5.430
excite_mean     0.149     0.147     0.148
fracstop        1.000     1.000     1.000
cjmean          3.088     3.088     3.088

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     180.6     182.6
kozaiamp        180.0     179.9     180.0