Orbit Fit and Astrometric record for 01DC106

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: 01DC106   
# Created Mon Nov 19 02:07:52 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   36 observations of   36
# Arc:  13.10y
# First observation: 2001/02/28
#  Last observation: 2014/04/04
# Chi-squared of fit:    45.20 DOF:   66 RMS:  0.20
# Min/Max residuals:    -0.60    0.51
# Exact a, adot, b, bdot, g, gdot:
  1.593813E-05  2.540545E-02  5.198017E-07  6.584132E-04  2.528046E-02  1.206366E-03
# Covariance matrix:
  2.4451E-13 -4.1445E-14  3.3709E-16 -5.7414E-16 -1.7349E-14 -6.7550E-14
 -4.1445E-14  5.1252E-14 -5.2546E-16  1.2733E-15  8.6030E-14  1.4850E-13
  3.3709E-16 -5.2546E-16  2.3182E-13 -1.9431E-14 -1.6022E-16 -1.6256E-15
 -5.7414E-16  1.2733E-15 -1.9431E-14  1.9926E-15  2.1843E-15  3.8381E-15
 -1.7349E-14  8.6030E-14 -1.6022E-16  2.1843E-15  3.0627E-13  2.5040E-13
 -6.7550E-14  1.4850E-13 -1.6256E-15  3.8381E-15  2.5040E-13  4.4788E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.236311  160.426156    0.008943    0.021305   -0.992531  2451968.594503
# Heliocentric elements and errors
Epoch:              2451968.5000  =  2001/02/28
Mean Anomaly:           48.25796 +/-     0.040
Argument of Peri:      344.98524 +/-     0.048
Long of Asc Node:      121.35978 +/-     0.002
Inclination:             1.91419 +/-     0.000
Eccentricity:         0.06451068 +/-    0.0000
Semi-Major Axis:     42.25709260 +/-    0.0033
Time of Perihelion: 2438518.7485 +/-      11.4
Perihelion:          39.53105888 +/-    0.0034
Aphelion:            44.98312631 +/-    0.0038
Period (y)              274.6993 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.19008380 +/-    0.0008
Ecliptic Y           13.59466620 +/-    0.0003
Ecliptic Z            0.85345719 +/-    0.0000
Ecliptic XDOT        -0.00105171 +/-    0.0000
Ecliptic YDOT        -0.00254595 +/-    0.0000
Ecliptic ZDOT         0.00007430 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.54655696 +/-    0.0008
Geocenter to KBO     39.55624031 +/-    0.0009
# Hcoef:  6.42

The following table shows the complete astrometric record for 01DC106. 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 (01DC106) followed by the observatory code and reference code for the source of the astrometry.

2001 02  28.09376  10 49 37.26   +08 48 08.9   21.9R 01DC106   809  Cd0833      
2001 02  28.18357  10 49 36.84   +08 48 11.5         01DC106   809  Cd0833      
2001 02  28.23190  10 49 36.59   +08 48 12.9         01DC106   809  Cd0833      
2001 02  28.27813  10 49 36.37   +08 48 14.5         01DC106   809  Cd0833      
2001 03  01.07616  10 49 32.61   +08 48 37.8         01DC106   809  Cd0833      
2001 03  01.26320  10 49 31.69   +08 48 43.1         01DC106   809  Cd0833      
2010 12  15.58403  11 46 01.753  +03 10 24.81  23.1w 01DC106   F51  C~1w3d      
2011 04  02.30554  11 40 58.330  +03 46 07.47  23.2w 01DC106   F51  C~1w3d      
2011 04  02.33685  11 40 58.217  +03 46 07.87  22.7w 01DC106   F51  C~1w3d      
2011 04  02.35194  11 40 58.151  +03 46 08.32  22.9w 01DC106   F51  C~1w3d      
2011 06  24.29851  11 38 29.574  +03 59 49.27  22.8w 01DC106   F51  C~1w3d      
2011 06  24.29918  11 38 29.563  +03 59 49.19  22.7w 01DC106   F51  C~1w3d      
2011 06  24.30313  11 38 29.538  +03 59 49.14  22.9w 01DC106   F51  C~1w3d      
2011 06  24.30774  11 38 29.603  +03 59 48.78  22.9w 01DC106   F51  C~1w3d      
2011 06  24.31234  11 38 29.604  +03 59 49.48  23.0w 01DC106   F51  C~1w3d      
2012 02  14.60427  11 49 38.378  +02 51 16.80  21.8i 01DC106   F51  C~1w3d      
2012 02  26.40569  11 48 50.996  +02 56 42.18  23.0w 01DC106   F51  C~1w3d      
2012 02  26.42010  11 48 50.927  +02 56 42.69  22.7w 01DC106   F51  C~1w3d      
2012 02  26.44891  11 48 50.807  +02 56 43.54  22.8w 01DC106   F51  C~1w3d      
2013 04  04.37160  11 51 15.828  +02 43 00.76  22.5w 01DC106   F51  C~1w3d      
2013 04  04.38634  11 51 15.761  +02 43 01.13  22.4w 01DC106   F51  C~1w3d      
2013 04  04.40103  11 51 15.708  +02 43 01.52  22.2w 01DC106   F51  C~1w3d      
2013 04  04.41577  11 51 15.640  +02 43 02.10  22.3w 01DC106   F51  C~1w3d      
2014 02  10.48767  12 00 15.041  +01 45 35.53  21.6i 01DC106   F51  C~1w3d      
2014 02  10.52927  12 00 14.912  +01 45 36.54  21.5i 01DC106   F51  C~1w3d      
2014 02  20.43924  11 59 38.786  +01 49 49.14  21.4i 01DC106   F51  C~1w3d      
2014 02  28.40892  11 59 06.326  +01 53 31.47  22.5w 01DC106   F51  C~1w3d      
2014 02  28.42142  11 59 06.279  +01 53 31.95  22.4w 01DC106   F51  C~1w3d      
2014 02  28.43378  11 59 06.213  +01 53 32.13  22.8w 01DC106   F51  C~1w3d      
2014 02  28.44616  11 59 06.164  +01 53 32.37  22.7w 01DC106   F51  C~1w3d      
2014 03  05.49921  11 58 44.424  +01 55 59.60  22.3w 01DC106   F51  C~1w3d      
2014 03  24.35642  11 57 19.352  +02 05 22.66  22.4w 01DC106   F51  C~1w3d      
2014 03  24.36854  11 57 19.303  +02 05 23.04  22.1w 01DC106   F51  C~1w3d      
2014 03  24.38066  11 57 19.256  +02 05 23.70  22.1w 01DC106   F51  C~1w3d      
2014 03  24.39281  11 57 19.202  +02 05 23.68  22.3w 01DC106   F51  C~1w3d      
2014 04  04.36947  11 56 30.086  +02 10 41.25  22.4w 01DC106   F51  C~1w3d      

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    -0.02       0.00    -0.02
  2   0.0002      0.00     0.17       0.00    -0.05
  3   0.0004      0.00    -0.08       0.00    -0.07
  4   0.0005      0.00    -0.03       0.00     0.18
  5   0.0027      0.00     0.14       0.00     0.13
  6   0.0032      0.00    -0.13       0.00    -0.05
  7   9.7946      0.00     0.30       0.00    -0.01
  8  10.0896      0.00    -0.47       0.00     0.12
  9  10.0896      0.00    -0.09       0.00    -0.35
 10  10.0897      0.00    -0.08       0.00    -0.32
 11  10.3168      0.00     0.05       0.00    -0.07
 12  10.3168      0.00    -0.13       0.00    -0.14
 13  10.3168      0.00    -0.60       0.00    -0.15
 14  10.3168      0.00     0.27       0.00    -0.45
 15  10.3168      0.00     0.18       0.00     0.31
 16  10.9610      0.00    -0.07       0.00    -0.17
 17  10.9933      0.00     0.17       0.00     0.17
 18  10.9934      0.00     0.07       0.00     0.27
 19  10.9934      0.00     0.15       0.00     0.29
 20  12.0966      0.00     0.03       0.00     0.07
 21  12.0966      0.00     0.01       0.00     0.04
 22  12.0967      0.00     0.19       0.00     0.02
 23  12.0967      0.00     0.14       0.00     0.19
 24  12.9511      0.00     0.03       0.00     0.03
 25  12.9512      0.00     0.25       0.00     0.04
 26  12.9784      0.00     0.02       0.00     0.01
 27  13.0002      0.00    -0.26       0.00     0.10
 28  13.0002      0.00    -0.16       0.00     0.22
 29  13.0002      0.00    -0.35       0.00     0.05
 30  13.0003      0.00    -0.29       0.00    -0.07
 31  13.0141      0.00    -0.01       0.00     0.10
 32  13.0657      0.00    -0.13       0.00    -0.16
 33  13.0658      0.00    -0.02       0.00    -0.14
 34  13.0658      0.00     0.11       0.00     0.16
 35  13.0658      0.00     0.15       0.00    -0.22
 36  13.0959      0.00     0.51       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.

01DC106    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.090    42.090    42.090
ecceobj         0.062     0.062     0.062
incobj          1.915     1.915     1.915
qmin           38.976    38.976    38.977
qmax           45.720    45.676    45.718
amean          42.229    42.229    42.229
amin           41.907    41.896    41.903
amax           42.584    42.572    42.583
emean           0.035     0.035     0.035
emin            0.000     0.000     0.000
emax            0.074     0.073     0.074
imean           1.813     1.814     1.813
imin            0.159     0.161     0.159
imax            3.121     3.120     3.121
excite_mean     0.052     0.052     0.052
fracstop        1.000     1.000     1.000
cjmean          3.078     3.078     3.078

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       171.0     171.0     171.2
kozaiamp        179.9     180.0     180.0