Orbit Fit and Astrometric record for 501214

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: 501214    
# Created Sat Dec 16 02:36:55 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   70 observations of   70
# Arc:   6.00y
# First observation: 2011/07/26
#  Last observation: 2017/07/26
# Chi-squared of fit:    89.31 DOF:  134 RMS:  0.20
# Min/Max residuals:    -1.57    1.13
# Exact a, adot, b, bdot, g, gdot:
  1.883300E-05  4.919802E-02 -3.772512E-06 -1.135226E-02  4.108599E-02  8.388056E-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
    6.128409  -56.483926    0.014047    0.108194   -1.008229  2455768.900136
# Heliocentric elements and errors
Epoch:              2455768.5000  =  2011/07/26
Mean Anomaly:           82.00273 +/-     0.000
Argument of Peri:       54.61469 +/-     0.000
Long of Asc Node:      147.54196 +/-     0.000
Inclination:            14.19031 +/-     0.000
Eccentricity:         0.16269939 +/-    0.0000
Semi-Major Axis:     25.25428370 +/-    0.0000
Time of Perihelion: 2445209.4014 +/-       0.0
Perihelion:          21.14542705 +/-    0.0000
Aphelion:            29.36314035 +/-    0.0000
Period (y)              126.9144 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           13.91498273 +/-    0.0000
Ecliptic Y          -21.02878664 +/-    0.0000
Ecliptic Z            2.59834037 +/-    0.0000
Ecliptic XDOT         0.00308195 +/-    0.0000
Ecliptic YDOT         0.00128514 +/-    0.0000
Ecliptic ZDOT        -0.00069243 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   25.34924166 +/-    0.0000
Geocenter to KBO     24.33915246 +/-    0.0000
# Hcoef:  6.73

The following table shows the complete astrometric record for 501214. 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 (501214) followed by the observatory code and reference code for the source of the astrometry.

2011 07  26.39937  20 17 26.332  -13 24 10.23  20.9g 501214    F51  C~1vX4      
2011 07  26.40956  20 17 26.245  -13 24 10.45  20.8g 501214    F51  C~1vX4      
2011 07  26.42088  20 17 26.160  -13 24 10.92  20.4r 501214    F51  C~1vX4      
2011 07  26.43065  20 17 26.081  -13 24 11.22  20.4r 501214    F51  C~1vX4      
2013 10  05.10812  20 34 07.89   -13 59 35.0   20.5R 501214    695  C~0zil      
2013 10  05.21593  20 34 07.68   -13 59 37.6         501214    695  C~0zil      
2013 10  06.09907  20 34 06.15   -13 59 58.5         501214    695  C~0zil      
2014 05  07.55394  20 57 25.937  -12 53 29.92  20.8w 501214    F51  C~1vX4      
2014 05  07.56629  20 57 25.950  -12 53 29.81  20.9w 501214    F51  C~1vX4      
2014 05  07.57859  20 57 25.959  -12 53 29.76  20.8w 501214    F51  C~1vX4      
2014 06  02.56074  20 57 05.907  -12 53 27.87  20.9w 501214    F51  C~1vX4      
2014 06  02.57380  20 57 05.867  -12 53 27.97  20.9w 501214    F51  C~1vX4      
2014 06  02.58676  20 57 05.832  -12 53 28.07  20.9w 501214    F51  C~1vX4      
2014 06  02.59975  20 57 05.796  -12 53 28.22  20.8w 501214    F51  C~1vX4      
2014 06  22.49028  20 55 48.222  -12 58 24.30  20.8w 501214    F51  C~1vX4      
2014 06  22.50317  20 55 48.163  -12 58 24.64  20.9w 501214    F51  C~1vX4      
2014 06  22.51605  20 55 48.090  -12 58 24.85  20.7w 501214    F51  C~1vX4      
2014 06  22.52894  20 55 48.021  -12 58 25.23  20.8w 501214    F51  C~1vX4      
2014 07  02.49721  20 54 52.592  -13 02 20.89  20.6w 501214    F51  C~1vX4      
2014 07  02.51066  20 54 52.516  -13 02 21.39  20.8w 501214    F51  C~1vX4      
2014 07  02.52412  20 54 52.434  -13 02 21.73  20.6w 501214    F51  C~1vX4      
2014 07  02.53757  20 54 52.350  -13 02 21.98  20.7w 501214    F51  C~1vX4      
2014 07  04.48992  20 54 40.451  -13 03 14.28  20.6w 501214    F51  C~1vX4      
2014 07  04.50331  20 54 40.368  -13 03 14.67  20.7w 501214    F51  C~1vX4      
2014 07  04.51667  20 54 40.282  -13 03 14.99  20.7w 501214    F51  C~1vX4      
2014 07  04.53002  20 54 40.199  -13 03 15.35  20.7w 501214    F51  C~1vX4      
2014 07  07.52435  20 54 21.345  -13 04 38.97  20.7w 501214    F51  C~1vX4      
2014 07  07.53618  20 54 21.276  -13 04 39.32  20.7w 501214    F51  C~1vX4      
2014 07  07.54798  20 54 21.196  -13 04 39.66  20.7w 501214    F51  C~1vX4      
2014 07  07.55981  20 54 21.115  -13 04 39.99  20.7w 501214    F51  C~1vX4      
2014 07  26.41763  20 52 10.376  -13 14 48.87  20.6w 501214    F51  C~1vX4      
2014 07  26.42993  20 52 10.281  -13 14 49.30  20.6w 501214    F51  C~1vX4      
2014 07  26.44224  20 52 10.188  -13 14 49.68  20.5w 501214    F51  C~1vX4      
2014 08  04.37135  20 51 04.415  -13 20 13.95  20.3i 501214    F51  C~1vX4      
2014 08  04.38439  20 51 04.311  -13 20 14.64  20.5i 501214    F51  C~1vX4      
2014 08  04.39748  20 51 04.212  -13 20 15.24  20.4i 501214    F51  C~1vX4      
2014 08  04.41055  20 51 04.121  -13 20 15.59  20.4i 501214    F51  C~1vX4      
2014 08  05.42333  20 50 56.613  -13 20 53.09  20.3i 501214    F51  C~1vX4      
2014 08  05.43628  20 50 56.530  -13 20 53.55  20.0i 501214    F51  C~1vX4      
2014 08  05.44917  20 50 56.446  -13 20 54.20  20.1i 501214    F51  C~1vX4      
2014 08  05.46214  20 50 56.345  -13 20 54.70  20.2i 501214    F51  C~1vX4      
2014 08  21.30857  20 49 02.160  -13 30 53.96  20.6w 501214    F51  C~1vX4      
2014 08  21.32050  20 49 02.079  -13 30 54.48  20.6w 501214    F51  C~1vX4      
2014 08  21.33241  20 49 01.992  -13 30 54.90  20.6w 501214    F51  C~1vX4      
2014 08  21.34434  20 49 01.910  -13 30 55.31  20.6w 501214    F51  C~1vX4      
2014 09  24.29490  20 45 53.526  -13 50 32.31  20.7w 501214    F51  C~1vX4      
2014 09  24.30687  20 45 53.482  -13 50 32.73  20.8w 501214    F51  C~1vX4      
2014 09  24.31884  20 45 53.428  -13 50 32.97  20.8w 501214    F51  C~1vX4      
2014 09  24.33081  20 45 53.396  -13 50 33.31  20.8w 501214    F51  C~1vX4      
2015 07  09.44995  21 05 18.709  -12 58 23.70  20.5i 501214    F51  C~1vX4      
2015 07  09.46161  21 05 18.638  -12 58 23.96  20.5i 501214    F51  C~1vX4      
2015 07  09.47327  21 05 18.564  -12 58 24.35  20.5i 501214    F51  C~1vX4      
2015 07  09.48489  21 05 18.496  -12 58 24.82  20.5i 501214    F51  C~1vX4      
2015 07  14.47591  21 04 46.383  -13 00 59.84  20.8w 501214    F51  C~1vX4      
2015 07  14.48701  21 04 46.318  -13 01 00.20  20.8w 501214    F51  C~1vX4      
2015 07  14.49825  21 04 46.243  -13 01 00.57  20.8w 501214    F51  C~1vX4      
2015 07  14.50945  21 04 46.155  -13 01 00.98  20.8w 501214    F51  C~1vX4      
2015 07  27.38536  21 03 17.020  -13 08 24.05  20.5i 501214    F51  C~1vX4      
2015 07  27.39696  21 03 16.933  -13 08 24.45  20.4i 501214    F51  C~1vX4      
2015 07  27.40831  21 03 16.848  -13 08 24.87  20.6i 501214    F51  C~1vX4      
2015 07  27.42026  21 03 16.762  -13 08 25.17  20.4i 501214    F51  C~1vX4      
2015 07  28.38290  21 03 09.853  -13 09 00.39  20.6r 501214    F51  C~1vX4      
2015 07  28.39501  21 03 09.767  -13 09 00.89  20.6r 501214    F51  C~1vX4      
2015 07  28.40674  21 03 09.680  -13 09 01.44  20.6r 501214    F51  C~1vX4      
2015 07  28.41838  21 03 09.590  -13 09 01.67  20.5r 501214    F51  C~1vX4      
2017 07  23.75978  21 25 29.55   -12 47 45.7   19.7R 501214    D29  C~2ICI      
2017 07  23.77480  21 25 29.55   -12 47 46.2   20.1R 501214    D29  C~2ICI      
2017 07  26.46037  21 25 11.349  -12 49 25.74  21.0w 501214    F51  C~2ICI      
2017 07  26.48232  21 25 11.194  -12 49 26.55  20.9w 501214    F51  C~2ICI      
2017 07  26.49326  21 25 11.096  -12 49 26.97  21.1w 501214    F51  C~2ICI      

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    -0.29       0.00    -1.57
  2   0.0000      0.00     0.02       0.00     0.02
  3   0.0001      0.00     0.07       0.00    -0.08
  4   0.0001      0.00     0.02       0.00    -0.07
  5   2.1950      0.00     0.03       0.00     0.15
  6   2.1953      0.00     0.05       0.00     0.11
  7   2.1977      0.00     0.20       0.00     0.00
  8   2.7821      0.00     0.06       0.00    -0.06
  9   2.7821      0.00     0.06       0.00    -0.05
 10   2.7821      0.00    -0.00       0.00    -0.10
 11   2.8533      0.00     0.13       0.00     0.01
 12   2.8533      0.00     0.07       0.00     0.02
 13   2.8534      0.00     0.09       0.00     0.03
 14   2.8534      0.00     0.09       0.00    -0.00
 15   2.9078      0.00     0.08       0.00     0.11
 16   2.9079      0.00     0.20       0.00     0.04
 17   2.9079      0.00     0.11       0.00     0.10
 18   2.9080      0.00     0.08       0.00    -0.01
 19   2.9352      0.00    -0.08       0.00     0.14
 20   2.9353      0.00     0.02       0.00    -0.01
 21   2.9353      0.00     0.04       0.00     0.01
 22   2.9354      0.00     0.02       0.00     0.11
 23   2.9407      0.00     0.06       0.00     0.03
 24   2.9407      0.00     0.08       0.00     0.00
 25   2.9408      0.00     0.06       0.00     0.05
 26   2.9408      0.00     0.08       0.00     0.05
 27   2.9490      0.00     0.01       0.00     0.07
 28   2.9490      0.00     0.13       0.00     0.06
 29   2.9491      0.00     0.09       0.00     0.05
 30   2.9491      0.00     0.04       0.00     0.06
 31   3.0007      0.00     0.17       0.00     0.01
 32   3.0008      0.00     0.12       0.00     0.02
 33   3.0008      0.00     0.10       0.00     0.07
 34   3.0252      0.00     0.20       0.00     0.07
 35   3.0253      0.00     0.11       0.00    -0.13
 36   3.0253      0.00     0.10       0.00    -0.24
 37   3.0254      0.00     0.21       0.00    -0.11
 38   3.0281      0.00    -0.21       0.00     0.07
 39   3.0282      0.00     0.01       0.00     0.09
 40   3.0282      0.00     0.20       0.00    -0.08
 41   3.0282      0.00     0.15       0.00    -0.10
 42   3.0716      0.00     0.05       0.00     0.12
 43   3.0717      0.00     0.10       0.00     0.05
 44   3.0717      0.00     0.05       0.00     0.09
 45   3.0717      0.00     0.08       0.00     0.13
 46   3.1647      0.00     0.06       0.00    -0.03
 47   3.1647      0.00     0.10       0.00    -0.10
 48   3.1647      0.00    -0.01       0.00     0.01
 49   3.1648      0.00     0.21       0.00     0.02
 50   3.9536      0.00     0.04       0.00     0.06
 51   3.9536      0.00     0.09       0.00     0.15
 52   3.9537      0.00     0.10       0.00     0.11
 53   3.9537      0.00     0.19       0.00    -0.01
 54   3.9674      0.00    -0.03       0.00     0.15
 55   3.9674      0.00     0.12       0.00     0.14
 56   3.9674      0.00     0.13       0.00     0.14
 57   3.9674      0.00    -0.06       0.00     0.09
 58   4.0027      0.00     0.04       0.00     0.05
 59   4.0027      0.00     0.01       0.00     0.08
 60   4.0028      0.00    -0.02       0.00     0.07
 61   4.0028      0.00    -0.00       0.00     0.21
 62   4.0054      0.00     0.05       0.00     0.09
 63   4.0055      0.00     0.09       0.00     0.04
 64   4.0055      0.00     0.07       0.00    -0.08
 65   4.0055      0.00     0.00       0.00     0.12
 66   5.9941      0.00    -0.41       0.00    -0.47
 67   5.9942      0.00     1.13       0.00    -0.42
 68   6.0015      0.00     0.10       0.00     0.15
 69   6.0016      0.00     0.06       0.00     0.16
 70   6.0016      0.00    -0.27       0.00     0.16

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.

501214    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        25.145    25.145    25.145
ecceobj         0.162     0.162     0.162
incobj         14.198    14.198    14.198
qmin           18.040    19.176    19.028
qmax           31.507    31.311    31.284
amean          24.993    25.094    25.102
amin           22.971    24.314    24.267
amax           25.728    25.594    25.707
emean           0.164     0.196     0.154
emin            0.084     0.157     0.073
emax            0.250     0.227     0.223
imean          11.661    11.439    12.113
imin            9.606    10.083    10.201
imax           13.928    13.026    13.759
excite_mean     0.262     0.280     0.264
fracstop        0.093     0.012     0.056
cjmean          2.964     2.954     2.962

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       172.7      91.1     135.6
kozaiamp        179.6      51.5     146.7