Orbit Fit and Astrometric record for 01DB106

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: 01DB106   
# Created Sun Oct 22 01:37:10 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   21
# Arc:  14.13y
# First observation: 2001/02/28
#  Last observation: 2015/04/15
Preliminary a, adot, b, bdot, g, gdot:
  -0.000666   0.021807  -0.000028   0.001261   0.024072   0.000000
# Chi-squared of fit:    36.65 DOF:   32 RMS:  0.25
# Min/Max residuals:    -0.49    0.57
# Exact a, adot, b, bdot, g, gdot:
  1.402086E-05  2.129422E-02 -1.896195E-06  1.230590E-03  2.299408E-02  4.057258E-04
# Covariance matrix:
  3.5243E-13 -2.6121E-13  1.0241E-14 -1.4346E-14 -2.3480E-13 -7.7159E-13
 -2.6121E-13  2.9271E-13 -1.2141E-14  1.6714E-14  2.1897E-13  8.9988E-13
  1.0241E-14 -1.2141E-14  1.3076E-13 -1.1019E-14 -7.2419E-15 -3.7780E-14
 -1.4346E-14  1.6714E-14 -1.1019E-14  2.9172E-15  1.1968E-14  5.1795E-14
 -2.3480E-13  2.1897E-13 -7.2419E-15  1.1968E-14  5.3441E-13  6.3809E-13
 -7.7159E-13  8.9988E-13 -3.7780E-14  5.1795E-14  6.3809E-13  2.7893E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.898620  159.331433   -0.009468    0.032777   -0.992198  2451968.562653
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:          141.76703 +/-     0.122
Argument of Peri:      244.97443 +/-     0.117
Long of Asc Node:      130.05438 +/-     0.001
Inclination:             3.79085 +/-     0.000
Eccentricity:         0.03755716 +/-    0.0001
Semi-Major Axis:     43.18285288 +/-    0.0044
Time of Perihelion: 2411143.7754 +/-      34.6
Perihelion:          41.56102750 +/-    0.0053
Aphelion:            44.80467825 +/-    0.0056
Period (y)              283.7757 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.59629174 +/-    0.0013
Ecliptic Y           15.68778309 +/-    0.0005
Ecliptic Z            1.44074081 +/-    0.0000
Ecliptic XDOT        -0.00094387 +/-    0.0000
Ecliptic YDOT        -0.00235375 +/-    0.0000
Ecliptic ZDOT         0.00014823 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.47958811 +/-    0.0012
Geocenter to KBO     43.48945899 +/-    0.0014
# Hcoef:  6.50

The following table shows the complete astrometric record for 01DB106. 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 (01DB106) followed by the observatory code and reference code for the source of the astrometry.

2001 02  28.06191  10 46 31.88   +09 49 46.9   22.7R 01DB106   809  Cd0833      
2001 02  28.15915  10 46 31.45   +09 49 49.5         01DB106   809  Cd0833      
2001 03  02.13176  10 46 22.77   +09 50 42.7         01DB106   809  Cd0833      
2001 03  02.23827  10 46 22.29   +09 50 46.0         01DB106   809  Cd0833      
2002 01  14.20030  10 54 02.75   +09 07 11.2   22.9R 01DB106   950  Ce9334      
2002 01  14.23341  10 54 02.68   +09 07 11.9         01DB106   950  Ce9334      
2002 01  14.26966  10 54 02.57   +09 07 12.6         01DB106   950  Ce9334      
2002 02  06.37090  10 52 45.57   +09 16 00.8   22.2R 01DB106   695  Ce9334      
2002 02  06.46772  10 52 45.18   +09 16 02.5         01DB106   695  Ce9334      
2002 02  08.53339  10 52 36.96   +09 16 57.0         01DB106   695  Ce9334      
2002 02  09.21900  10 52 34.21   +09 17 15.5         01DB106   304  Ce9334      
2002 02  09.25869  10 52 34.06   +09 17 16.6   22.8R 01DB106   304  Ce9334      
2003 03  31.19847  10 53 46.12   +09 14 52.8   22.2R 01DB106   695  Ch8065      
2003 04  01.17721  10 53 42.47   +09 15 14.7         01DB106   695  Ch8065      
2003 04  01.27308  10 53 42.12   +09 15 16.6         01DB106   695  Ch8065      
2015 02  18.29448  11 51 42.54   +03 55 37.9   22.9R 01DB106   695  C~1M60      
2015 02  18.38762  11 51 42.20   +03 55 40.5         01DB106   695  C~1M60      
2015 02  18.47664  11 51 41.87   +03 55 43.0         01DB106   695  C~1M60      
2015 04  15.20534  11 47 55.88   +04 20 41.6   22.8R 01DB106   695  C~1RHM      
2015 04  15.28229  11 47 55.60   +04 20 43.4         01DB106   695  C~1RHM      
2015 04  15.35550  11 47 55.31   +04 20 44.9         01DB106   695  C~1RHM      

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     0.13       0.00     0.57
  2   0.0003     -6.87     0.19       0.01     0.53
  3   0.0057   -145.74    -0.01       0.82     0.00
  4   0.0060   -153.56    -0.24       1.19     0.36
  5   0.8765   7144.32     0.19     172.89    -0.12
  6   0.8766   7143.09     0.43     173.14     0.06
  7   0.8767   7141.31     0.27     173.17    -0.00
  8   0.9399   5884.57 (   0.77)    225.36 (   0.05)
  9   0.9402   5878.58 (   1.00)    224.73 (  -0.71)
 10   0.9458   5745.20    -0.09     228.63    -0.34
 11   0.9477   5700.48    -0.48     230.19    -0.19
 12   0.9478   5698.00    -0.34     230.36    -0.07
 13   2.0839   6739.73    -0.14     505.32    -0.49
 14   2.0866   6681.36    -0.09     504.88    -0.19
 15   2.0868   6675.84     0.17     504.65    -0.31
 16  13.9719  63795.50    -0.10    3637.66    -0.19
 17  13.9721  63789.25    -0.09    3637.95    -0.01
 18  13.9724  63783.19    -0.16    3638.21     0.14
 19  14.1250  59752.66     0.13    3613.07     0.08
 20  14.1252  59747.71     0.21    3612.99     0.20
 21  14.1254  59742.76     0.02    3612.56    -0.03

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.

01DB106    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.026    43.039    43.013
ecceobj         0.040     0.040     0.041
incobj          3.795     3.795     3.795
qmin           40.254    40.282    40.256
qmax           46.306    46.305    46.276
amean          43.190    43.203    43.177
amin           42.854    42.869    42.842
amax           43.548    43.553    43.524
emean           0.047     0.047     0.047
emin            0.026     0.026     0.027
emax            0.064     0.064     0.064
imean           3.116     3.110     3.121
imin            2.078     2.080     2.076
imax            3.994     3.977     4.012
excite_mean     0.072     0.072     0.072
fracstop        1.000     1.000     1.000
cjmean          3.086     3.086     3.085

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       178.1     177.9     178.6
kozaiamp        179.9     180.0     180.0