Orbit Fit and Astrometric record for 472760

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: 472760    
# Created Wed Dec 13 02:36:52 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   71 observations of   72
# Arc:   5.11y
# First observation: 2011/01/30
#  Last observation: 2016/03/12
# Chi-squared of fit:   106.09 DOF:  136 RMS:  0.22
# Min/Max residuals:    -0.82    1.17
# Exact a, adot, b, bdot, g, gdot:
  3.296146E-05  1.678183E-01  3.603938E-06  1.963886E-02  8.183286E-02 -5.972052E-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
   -1.576870  143.518665    0.229390   -0.026445   -0.960824  2455591.851296
# Heliocentric elements and errors
Epoch:              2455592.5000  =  2011/01/31
Mean Anomaly:          356.36596 +/-     0.000
Argument of Peri:      357.54483 +/-     0.000
Long of Asc Node:      154.83156 +/-     0.000
Inclination:             6.82212 +/-     0.000
Eccentricity:         0.42540931 +/-    0.0000
Semi-Major Axis:     22.83386388 +/-    0.0000
Time of Perihelion: 2455994.8047 +/-       0.0
Perihelion:          13.12012554 +/-    0.0000
Aphelion:            32.54760221 +/-    0.0000
Period (y)              109.1132 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -10.45435333 +/-    0.0000
Ecliptic Y            8.01787268 +/-    0.0000
Ecliptic Z           -0.33624832 +/-    0.0000
Ecliptic XDOT        -0.00319326 +/-    0.0000
Ecliptic YDOT        -0.00461636 +/-    0.0000
Ecliptic ZDOT         0.00066231 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.17927869 +/-    0.0000
Geocenter to KBO     12.22006973 +/-    0.0000
# Hcoef: 10.75

The following table shows the complete astrometric record for 472760. 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 (472760) followed by the observatory code and reference code for the source of the astrometry.

2011 01  30.35053  09 41 15.490  +12 11 26.45  22.0w 472760    F51  C~1vYP      
2011 01  30.36509  09 41 15.311  +12 11 27.60  22.3w 472760    F51  C~1vYP      
2011 01  30.38071  09 41 15.110  +12 11 28.48  22.2w 472760    F51  C~1vYP      
2011 01  30.39527  09 41 14.938  +12 11 29.50  22.1w 472760    F51  C~1vYP      
2011 02  02.50525  09 40 36.785  +12 15 13.57  22.1w 472760    F51  C~1vYP      
2011 02  02.52041  09 40 36.607  +12 15 14.71  22.0w 472760    F51  C~1vYP      
2011 02  02.53635  09 40 36.405  +12 15 15.85  21.9w 472760    F51  C~1vYP      
2011 02  02.55159  09 40 36.215  +12 15 16.93  21.9w 472760    F51  C~1vYP      
2011 02  08.34607  09 39 23.76   +12 22 25.0   21.1V 472760    G96  C~1oa5      
2011 02  08.35479  09 39 23.58   +12 22 25.0   22.0V 472760    G96  C~1oa5      
2011 02  08.36351  09 39 23.43   +12 22 25.9   22.4V 472760    G96  C~1oa5      
2011 02  08.37220  09 39 23.36   +12 22 27.3   22.2V 472760    G96  C~1oa5      
2011 05  30.26741  09 32 57.848  +13 23 18.84  22.4w 472760    F51  C~1vYP      
2011 05  30.27204  09 32 57.894  +13 23 18.75  22.4w 472760    F51  C~1vYP      
2011 05  30.27668  09 32 57.943  +13 23 18.69  22.7w 472760    F51  C~1vYP      
2012 01  21.45612  10 21 18.410  +09 46 01.01  21.9w 472760    F51  C~1vYP      
2012 01  21.47024  10 21 18.288  +09 46 02.00  21.9w 472760    F51  C~1vYP      
2012 01  21.48437  10 21 18.160  +09 46 02.59  21.8w 472760    F51  C~1vYP      
2012 02  04.51774  10 18 51.546  +10 02 36.21  21.6i 472760    F51  C~1vYP      
2012 02  04.53004  10 18 51.412  +10 02 37.19  21.9i 472760    F51  C~1vYP      
2012 02  04.59610  10 18 50.648  +10 02 42.20  21.7r 472760    F51  C~1vYP      
2013 02  14.39668  10 54 53.856  +07 45 38.40  21.9w 472760    F51  C~1vYP      
2013 02  14.41124  10 54 53.689  +07 45 39.57  21.9w 472760    F51  C~1vYP      
2013 02  14.42585  10 54 53.514  +07 45 40.88  22.2w 472760    F51  C~1vYP      
2013 02  14.44059  10 54 53.354  +07 45 42.00  22.1w 472760    F51  C~1vYP      
2014 03  05.50882  11 28 24.784  +05 31 48.09  21.7w 472760    F51  C~1oa5      
2014 03  05.52121  11 28 24.629  +05 31 49.08  21.6w 472760    F51  C~1oa5      
2014 03  24.34984  11 24 44.243  +05 58 46.50  21.8w 472760    F51  C~1oa5      
2014 04  24.31315  11 19 55.450  +06 32 41.09  21.8w 472760    F51  C~1vYP      
2014 04  24.32571  11 19 55.346  +06 32 41.69  22.3w 472760    F51  C~1vYP      
2014 04  24.33838  11 19 55.197  +06 32 42.26  22.0w 472760    F51  C~1vYP      
2014 05  20.28068  11 18 26.834  +06 43 02.55  22.4w 472760    F51  C~1vYP      
2014 05  20.29238  11 18 26.847  +06 43 02.74  22.1w 472760    F51  C~1vYP      
2014 05  20.30404  11 18 26.821  +06 43 02.65  22.4w 472760    F51  C~1vYP      
2014 05  20.31573  11 18 26.813  +06 43 02.69  22.4w 472760    F51  C~1vYP      
2015 01  21.60273  12 09 25.512  +01 59 40.69  22.5w 472760    F51  C~1vYP      
2015 01  21.61494  12 09 25.478  +01 59 41.00  22.4w 472760    F51  C~1vYP      
2015 01  21.62723  12 09 25.441  +01 59 41.62  22.3w 472760    F51  C~1vYP      
2015 01  21.63952  12 09 25.414  +01 59 42.32  22.8w 472760    F51  C~1vYP      
2015 02  18.53386  12 06 41.338  +02 27 16.96  22.1w 472760    F51  C~1vYP      
2015 02  18.54353  12 06 41.222  +02 27 17.62  22.3w 472760    F51  C~1vYP      
2015 02  18.54632  12 06 41.198  +02 27 17.72  22.3w 472760    F51  C~1vYP      
2015 02  18.55598  12 06 41.111  +02 27 18.58  22.4w 472760    F51  C@0616      
2015 02  18.55879  12 06 41.105  +02 27 18.98  22.2w 472760    F51  C~1vYP      
2015 02  18.56852  12 06 41.003  +02 27 19.57  22.2w 472760    F51  C@0616      
2015 02  18.57125  12 06 40.981  +02 27 19.54  22.1w 472760    F51  C~1vYP      
2015 02  19.50633  12 06 32.648  +02 28 31.59  22.2w 472760    F51  C@0616      
2015 02  19.51876  12 06 32.526  +02 28 32.25  22.0w 472760    F51  C@0616      
2015 02  19.53125  12 06 32.416  +02 28 33.29  22.0w 472760    F51  C~1vYP      
2015 02  19.54371  12 06 32.301  +02 28 34.26  21.9w 472760    F51  C~1vYP      
2015 03  23.47771  12 00 47.711  +03 13 34.40  21.8w 472760    F51  C@0616      
2015 03  23.49027  12 00 47.560  +03 13 35.40  21.8w 472760    F51  C@0616      
2015 03  23.50283  12 00 47.410  +03 13 36.59  21.9w 472760    F51  C@0616      
2015 03  23.51541  12 00 47.262  +03 13 37.64  21.9w 472760    F51  C~1vYP      
2015 03  24.41580  12 00 36.848  +03 14 54.42  22.0w 472760    F51  C~1vYP      
2015 03  24.43027  12 00 36.687  +03 14 55.10  21.9w 472760    F51  C~1vYP      
2015 03  24.44473  12 00 36.497  +03 14 56.73  21.9w 472760    F51  C~1vYP      
2015 03  24.45925  12 00 36.333  +03 14 57.93  21.8w 472760    F51  C~1vYP      
2015 03  24.537600 12 00 35.394  +03 15 04.58  21.1R 472760    568  C~1OX5      
2015 03  24.538918 12 00 35.376  +03 15 04.71  21.2R 472760    568  C~1OX5      
2015 03  24.540245 12 00 35.364  +03 15 04.77  21.2R 472760    568  C~1OX5      
2015 03  26.507697 12 00 12.623  +03 17 50.99  21.4R 472760    568  C~1OX5      
2015 03  26.524383 12 00 12.427  +03 17 52.48  21.4R 472760    568  C~1OX5      
2015 04  23.360881 11 55 23.942  +03 51 28.68  22.0R 472760    568  C~1RJS      
2015 04  23.433587 11 55 23.304  +03 51 32.93  21.9R 472760    568  C~1RJS      
2015 04  24.20202  11 55 16.85   +03 52 16.1   21.9R 472760    G37  C~1RfA      
2015 04  24.36708  11 55 15.43   +03 52 25.2         472760    G37  C~1RfA      
2016 03  11.43125  12 37 00.53   +00 16 47.1   21.4R 472760    G37  C~1oa5      
2016 03  11.48590  12 36 59.95   +00 16 51.7         472760    G37  C~1oa5      
2016 03  11.48969  12 36 59.90   +00 16 52.2         472760    G37  C~1oa5      
2016 03  12.22863  12 36 52.16   +00 17 53.4   21.5R 472760    G37  C~1oa5      
2016 03  12.25197  12 36 51.91   +00 17 55.4         472760    G37  C~1oa5      

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 (  -0.45)      0.00 (   3.47)
  2   0.0000      0.00     0.06       0.00     0.12
  3   0.0001      0.00    -0.06       0.00    -0.12
  4   0.0001      0.00     0.06       0.00    -0.14
  5   0.0086      0.00    -0.06       0.00    -0.18
  6   0.0087      0.00     0.15       0.00    -0.14
  7   0.0087      0.00     0.14       0.00    -0.16
  8   0.0088      0.00     0.18       0.00    -0.18
  9   0.0246      0.00     1.17       0.00    -0.03
 10   0.0247      0.00     0.16       0.00    -0.68
 11   0.0247      0.00    -0.41       0.00    -0.43
 12   0.0247      0.00     0.22       0.00     0.32
 13   0.3283      0.00     0.02       0.00    -0.06
 14   0.3283      0.00    -0.03       0.00     0.03
 15   0.3283      0.00    -0.03       0.00     0.14
 16   0.9750      0.00    -0.05       0.00     0.08
 17   0.9750      0.00     0.14       0.00     0.16
 18   0.9750      0.00     0.24       0.00    -0.16
 19   1.0135      0.00    -0.03       0.00     0.08
 20   1.0135      0.00     0.12       0.00     0.13
 21   1.0137      0.00     0.23       0.00     0.10
 22   2.0426      0.00     0.06       0.00     0.11
 23   2.0426      0.00     0.07       0.00     0.07
 24   2.0426      0.00    -0.02       0.00     0.17
 25   2.0427      0.00     0.13       0.00     0.07
 26   3.0942      0.00    -0.01       0.00    -0.09
 27   3.0942      0.00    -0.11       0.00    -0.19
 28   3.1458      0.00     0.33       0.00     0.08
 29   3.2306      0.00     0.40       0.00     0.17
 30   3.2306      0.00     0.12       0.00     0.20
 31   3.2306      0.00    -0.82       0.00     0.19
 32   3.3017      0.00     0.09       0.00    -0.31
 33   3.3017      0.00     0.34       0.00    -0.14
 34   3.3017      0.00     0.01       0.00    -0.25
 35   3.3018      0.00    -0.06       0.00    -0.23
 36   3.9760      0.00     0.22       0.00     0.08
 37   3.9761      0.00     0.22       0.00    -0.09
 38   3.9761      0.00     0.17       0.00     0.05
 39   3.9762      0.00     0.28       0.00     0.27
 40   4.0525      0.00     0.54       0.00     0.01
 41   4.0525      0.00     0.13       0.00    -0.07
 42   4.0526      0.00     0.15       0.00    -0.18
 43   4.0526      0.00     0.16       0.00    -0.05
 44   4.0526      0.00     0.46       0.00     0.13
 45   4.0526      0.00     0.26       0.00    -0.02
 46   4.0526      0.00     0.30       0.00    -0.26
 47   4.0552      0.00     0.25       0.00     0.15
 48   4.0552      0.00     0.15       0.00    -0.15
 49   4.0553      0.00     0.24       0.00    -0.07
 50   4.0553      0.00     0.25       0.00    -0.06
 51   4.1427      0.00     0.19       0.00    -0.12
 52   4.1428      0.00     0.16       0.00    -0.19
 53   4.1428      0.00     0.14       0.00    -0.07
 54   4.1428      0.00     0.16       0.00    -0.09
 55   4.1453      0.00     0.13       0.00     0.04
 56   4.1453      0.00     0.29       0.00    -0.51
 57   4.1454      0.00     0.02       0.00    -0.11
 58   4.1454      0.00     0.14       0.00    -0.14
 59   4.1456      0.00    -0.03       0.00    -0.15
 60   4.1456      0.00    -0.07       0.00    -0.13
 61   4.1456      0.00    -0.02       0.00    -0.18
 62   4.1510      0.00    -0.15       0.00    -0.08
 63   4.1511      0.00    -0.14       0.00     0.01
 64   4.2273      0.00    -0.03       0.00    -0.18
 65   4.2275      0.00    -0.02       0.00    -0.05
 66   4.2296      0.00     0.15       0.00     0.09
 67   4.2300      0.00     0.07       0.00     0.04
 68   5.1118      0.00    -0.04       0.00    -0.13
 69   5.1119      0.00     0.03       0.00    -0.06
 70   5.1119      0.00    -0.11       0.00     0.12
 71   5.1140      0.00    -0.06       0.00    -0.13
 72   5.1140      0.00    -0.04       0.00    -0.07

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.

472760    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        22.972    22.972    22.973
ecceobj         0.426     0.426     0.426
incobj          6.813     6.813     6.813
qmin           12.816    12.816    12.816
qmax           32.756    32.756    32.757
amean          22.601    22.601    22.602
amin           22.447    22.451    22.444
amax           22.972    22.972    22.973
emean           0.426     0.426     0.426
emin            0.419     0.419     0.419
emax            0.437     0.437     0.437
imean           5.379     5.373     5.388
imin            4.990     4.978     5.011
imax            5.855     5.855     5.855
excite_mean     0.437     0.436     0.437
fracstop        0.001     0.001     0.001
cjmean          2.894     2.894     2.894

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        40.8      40.7      40.9
kozaiamp        177.6     177.6     177.6