Orbit Fit and Astrometric record for 471155

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: 471155    
# Created Sat Oct 21 01:36:51 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   66 observations of   66
# Arc:   5.19y
# First observation: 2010/04/13
#  Last observation: 2015/06/22
# Chi-squared of fit:   197.82 DOF:  126 RMS:  0.31
# Min/Max residuals:    -1.02    1.46
# Exact a, adot, b, bdot, g, gdot:
  2.116719E-05  5.198976E-02 -5.459810E-06 -8.872961E-03  3.997591E-02 -1.362995E-02
# 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
   -8.059034 -140.630942    0.288914   -0.135003   -0.953513  2455299.561256
# Heliocentric elements and errors
Epoch:              2455300.5000  =  2010/04/14
Mean Anomaly:          325.36854 +/-     0.000
Argument of Peri:      285.13907 +/-     0.000
Long of Asc Node:        0.55221 +/-     0.000
Inclination:            12.43358 +/-     0.000
Eccentricity:         0.33818626 +/-    0.0000
Semi-Major Axis:     33.30964519 +/-    0.0000
Time of Perihelion: 2462055.4430 +/-       0.0
Perihelion:          22.04478088 +/-    0.0000
Aphelion:            44.57450949 +/-    0.0000
Period (y)              192.2486 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.07096740 +/-    0.0000
Ecliptic Y          -16.10092251 +/-    0.0000
Ecliptic Z           -3.50709704 +/-    0.0000
Ecliptic XDOT         0.00304094 +/-    0.0000
Ecliptic YDOT        -0.00210643 +/-    0.0000
Ecliptic ZDOT        -0.00047086 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   25.96902940 +/-    0.0000
Geocenter to KBO     25.01522049 +/-    0.0000
# Hcoef:  7.31

The following table shows the complete astrometric record for 471155. 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 (471155) followed by the observatory code and reference code for the source of the astrometry.

2010 04  13.06049  14 16 51.247  -22 14 15.36  21.3R 471155    809  C~0GFV      
2010 04  13.14522  14 16 50.533  -22 14 12.98  20.8R 471155    809  C~0GFV      
2010 04  14.05641  14 16 43.751  -22 13 50.70  20.9R 471155    809  C~0GFV      
2010 04  14.14102  14 16 43.198  -22 13 48.68  20.8R 471155    809  C~0GFV      
2010 04  14.22519  14 16 42.510  -22 13 45.94  20.8R 471155    809  C~0GFV      
2010 04  15.13376  14 16 35.716  -22 13 23.42  20.9R 471155    807  C~0GFV      
2010 04  15.18373  14 16 35.351  -22 13 22.00  21.1R 471155    807  C~0GFV      
2010 04  20.03519  14 15 58.476  -22 11 10.30  21.0R 471155    807  C~0GXZ      
2010 04  20.08517  14 15 58.109  -22 11 09.05  21.0R 471155    807  C~0GXZ      
2010 05  08.07304  14 13 40.084  -22 01 33.65  20.9R 471155    807  C~0HIY      
2010 05  08.11668  14 13 39.749  -22 01 32.17  21.1R 471155    807  C~0HIY      
2010 05  09.98322  14 13 25.778  -22 00 26.17  20.7R 471155    809  C~0HIY      
2010 05  10.06626  14 13 25.148  -22 00 23.22  21.0R 471155    809  C~0HIY      
2010 05  10.15119  14 13 24.470  -22 00 20.41  20.8R 471155    809  C~0HIY      
2010 06  06.02492  14 10 27.641  -21 44 23.59  21.1R 471155    807  C~0IRr      
2010 06  06.09881  14 10 27.205  -21 44 21.13  21.0R 471155    807  C~0IRr      
2010 06  14.20432  14 09 47.14   -21 39 54.2   21.0R 471155    688  C~0InU      
2010 06  14.25190  14 09 46.93   -21 39 52.7         471155    688  C~0InU      
2011 04  02.24818  14 29 50.878  -23 45 20.70        471155    809  C~14jG      
2011 04  02.33185  14 29 50.336  -23 45 19.36  20.9R 471155    809  C~14jG      
2012 05  19.38382  14 35 56.771  -24 51 34.06  21.1w 471155    F51  C~1vWD      
2012 05  19.39929  14 35 56.653  -24 51 33.53  21.1w 471155    F51  C~1vWD      
2012 05  19.41477  14 35 56.531  -24 51 32.90  21.2w 471155    F51  C~1vWD      
2012 05  19.43023  14 35 56.417  -24 51 32.44  21.2w 471155    F51  C~1vWD      
2012 05  20.36949  14 35 49.273  -24 50 59.73  21.1w 471155    F51  C~1vWD      
2012 05  20.38410  14 35 49.162  -24 50 59.22  21.0w 471155    F51  C~1vWD      
2012 05  20.39869  14 35 49.051  -24 50 58.77  21.1w 471155    F51  C~1vWD      
2012 05  20.41328  14 35 48.939  -24 50 58.22  21.1w 471155    F51  C~1vWD      
2013 04  18.46015  14 52 59.174  -26 32 10.10  21.4w 471155    F51  C~1vWD      
2013 04  18.46766  14 52 59.132  -26 32 09.65  21.0w 471155    F51  C~1vWD      
2013 04  18.47516  14 52 59.083  -26 32 09.46  21.3w 471155    F51  C~1vWD      
2013 04  18.48269  14 52 59.037  -26 32 09.09  21.5w 471155    F51  C~1vWD      
2013 05  05.39506  14 50 41.613  -26 25 36.89  21.1w 471155    F51  C~1vWD      
2013 05  05.40987  14 50 41.494  -26 25 36.47  21.1w 471155    F51  C~1vWD      
2013 05  05.42465  14 50 41.375  -26 25 36.06  21.0w 471155    F51  C~1vWD      
2013 05  05.43944  14 50 41.249  -26 25 35.59  21.0w 471155    F51  C~1vWD      
2013 05  09.10751  14 50 10.864  -26 23 49.90  21.2r 471155    807  C~12zP      
2013 05  10.17946  14 50 01.979  -26 23 17.85        471155    807  C~12zP      
2013 05  10.25152  14 50 01.370  -26 23 15.86        471155    807  C~12zP      
2014 05  23.37462  15 01 45.974  -27 41 09.83  21.0w 471155    F51  C~1vWD      
2014 05  23.38582  15 01 45.882  -27 41 09.49  21.0w 471155    F51  C~1vWD      
2014 05  23.39703  15 01 45.780  -27 41 09.10  21.0w 471155    F51  C~1vWD      
2014 05  23.40825  15 01 45.694  -27 41 08.74  21.0w 471155    F51  C~1vWD      
2015 03  22.55448  15 23 40.311  -29 14 23.47  21.3w 471155    F51  C~1vWD      
2015 03  22.56509  15 23 40.257  -29 14 23.57  21.2w 471155    F51  C~1vWD      
2015 03  22.57568  15 23 40.209  -29 14 23.81  21.2w 471155    F51  C~1vWD      
2015 03  22.58628  15 23 40.158  -29 14 23.86  21.3w 471155    F51  C~1vWD      
2015 04  02.54967  15 22 43.904  -29 15 49.49  20.6i 471155    F51  C~1vWD      
2015 04  02.56053  15 22 43.832  -29 15 49.58  20.9i 471155    F51  C~1vWD      
2015 04  02.57130  15 22 43.784  -29 15 49.61  20.8i 471155    F51  C~1vWD      
2015 04  02.58210  15 22 43.703  -29 15 49.74  20.9i 471155    F51  C~1vWD      
2015 04  18.49276  15 20 55.001  -29 15 05.01  21.0w 471155    F51  C~1vWD      
2015 04  18.50343  15 20 54.923  -29 15 04.82  21.0w 471155    F51  C~1vWD      
2015 04  18.51406  15 20 54.838  -29 15 04.90  21.1w 471155    F51  C~1vWD      
2015 04  20.48791  15 20 39.590  -29 14 45.84  21.3w 471155    F51  C~1vWD      
2015 04  20.49862  15 20 39.490  -29 14 45.71  21.2w 471155    F51  C~1vWD      
2015 04  20.50937  15 20 39.404  -29 14 45.59  21.0w 471155    F51  C~1vWD      
2015 04  20.52005  15 20 39.325  -29 14 45.43  21.0w 471155    F51  C~1vWD      
2015 05  26.36925  15 15 35.361  -29 01 46.66  20.6i 471155    F51  C~1vWD      
2015 05  26.37987  15 15 35.280  -29 01 46.25  20.7i 471155    F51  C~1vWD      
2015 05  26.39045  15 15 35.188  -29 01 45.92  20.8i 471155    F51  C~1vWD      
2015 05  26.40104  15 15 35.094  -29 01 45.56  20.6i 471155    F51  C~1vWD      
2015 06  22.37282  15 12 15.637  -28 46 39.99  20.8i 471155    F51  C~1vWD      
2015 06  22.38315  15 12 15.574  -28 46 39.51  20.6i 471155    F51  C~1vWD      
2015 06  22.39350  15 12 15.507  -28 46 39.13  20.8i 471155    F51  C~1vWD      
2015 06  22.40385  15 12 15.444  -28 46 38.80  20.6i 471155    F51  C~1vWD      

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    -0.26       0.00     1.46
  2   0.0002      0.00    -1.02       0.00     0.73
  3   0.0027      0.00    -0.85       0.00     0.11
  4   0.0030      0.00     0.47       0.00     0.03
  5   0.0032      0.00    -0.23       0.00     0.65
  6   0.0057      0.00    -0.00       0.00    -0.19
  7   0.0058      0.00     0.26       0.00    -0.05
  8   0.0191      0.00    -0.13       0.00    -0.50
  9   0.0192      0.00     0.17       0.00    -0.64
 10   0.0685      0.00     0.35       0.00    -0.64
 11   0.0686      0.00     0.34       0.00    -0.66
 12   0.0737      0.00     0.44       0.00     0.06
 13   0.0739      0.00     0.40       0.00     0.14
 14   0.0742      0.00    -0.11       0.00    -0.02
 15   0.1477      0.00     0.04       0.00    -0.16
 16   0.1479      0.00    -0.36       0.00    -0.22
 17   0.1701      0.00     0.02       0.00    -0.18
 18   0.1703      0.00     0.14       0.00    -0.19
 19   0.9697      0.00     0.97       0.00     0.04
 20   0.9699      0.00     1.45       0.00     0.18
 21   2.1008      0.00     0.01       0.00     0.01
 22   2.1009      0.00     0.05       0.00     0.00
 23   2.1009      0.00     0.03       0.00     0.09
 24   2.1009      0.00     0.12       0.00     0.01
 25   2.1035      0.00    -0.00       0.00     0.03
 26   2.1036      0.00     0.03       0.00     0.03
 27   2.1036      0.00     0.06       0.00    -0.03
 28   2.1036      0.00     0.07       0.00     0.01
 29   3.0155      0.00    -0.30       0.00    -0.26
 30   3.0155      0.00    -0.03       0.00     0.05
 31   3.0155      0.00     0.13       0.00     0.11
 32   3.0155      0.00     0.34       0.00     0.34
 33   3.0618      0.00    -0.18       0.00    -0.03
 34   3.0619      0.00    -0.09       0.00    -0.02
 35   3.0619      0.00     0.01       0.00    -0.02
 36   3.0620      0.00    -0.01       0.00     0.03
 37   3.0720      0.00     0.36       0.00     0.14
 38   3.0749      0.00     0.29       0.00     0.33
 39   3.0751      0.00     0.25       0.00     0.14
 40   4.1104      0.00     0.19       0.00    -0.01
 41   4.1104      0.00     0.21       0.00    -0.03
 42   4.1104      0.00     0.08       0.00     0.00
 43   4.1105      0.00     0.19       0.00     0.00
 44   4.9404      0.00     0.03       0.00     0.03
 45   4.9405      0.00    -0.07       0.00     0.06
 46   4.9405      0.00    -0.08       0.00    -0.05
 47   4.9405      0.00    -0.13       0.00     0.03
 48   4.9705      0.00     0.16       0.00    -0.00
 49   4.9706      0.00     0.07       0.00    -0.06
 50   4.9706      0.00     0.33       0.00    -0.05
 51   4.9706      0.00     0.10       0.00    -0.15
 52   5.0142      0.00     0.01       0.00    -0.05
 53   5.0142      0.00     0.09       0.00     0.05
 54   5.0142      0.00     0.06       0.00    -0.13
 55   5.0197      0.00     0.14       0.00    -0.17
 56   5.0197      0.00    -0.08       0.00    -0.15
 57   5.0197      0.00    -0.08       0.00    -0.14
 58   5.0197      0.00     0.01       0.00    -0.09
 59   5.1179      0.00     0.11       0.00    -0.12
 60   5.1179      0.00     0.26       0.00    -0.03
 61   5.1179      0.00     0.24       0.00    -0.03
 62   5.1180      0.00     0.19       0.00     0.01
 63   5.1918      0.00     0.06       0.00    -0.11
 64   5.1918      0.00     0.08       0.00     0.01
 65   5.1919      0.00     0.03       0.00     0.02
 66   5.1919      0.00     0.05       0.00    -0.01

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.

471155    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        33.110    33.110    33.110
ecceobj         0.336     0.335     0.336
incobj         12.446    12.446    12.446
qmin           21.487    20.966    21.177
qmax           46.566    46.309    46.041
amean          33.557    33.090    33.409
amin           33.009    31.069    32.935
amax           34.404    33.862    34.246
emean           0.344     0.337     0.339
emin            0.311     0.258     0.275
emax            0.358     0.371     0.366
imean          12.366    13.184    13.408
imin           11.557    10.666    11.638
imax           15.762    19.346    18.407
excite_mean     0.406     0.410     0.412
fracstop        0.038     0.043     0.049
cjmean          2.832     2.829     2.827

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       190.7     151.1     159.2
kozaiamp        179.5     179.6     179.4