Orbit Fit and Astrometric record for 472232

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: 472232    
# Created Sun Oct 22 01:36:53 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   56 observations of   56
# Arc:   3.97y
# First observation: 2012/04/13
#  Last observation: 2016/04/01
# Chi-squared of fit:   126.69 DOF:  106 RMS:  0.27
# Min/Max residuals:    -0.82    1.24
# Exact a, adot, b, bdot, g, gdot:
  1.503134E-05  2.249370E-02  1.878219E-06  2.854704E-03  2.374078E-02 -1.473427E-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
  -12.136006 -170.822934   -0.251812   -0.204792   -0.952288  2456030.853886
# Heliocentric elements and errors
Epoch:              2456030.5000  =  2012/04/13
Mean Anomaly:          269.21754 +/-     0.000
Argument of Peri:       38.65249 +/-     0.000
Long of Asc Node:      247.40825 +/-     0.000
Inclination:            13.92936 +/-     0.000
Eccentricity:         0.05713421 +/-    0.0000
Semi-Major Axis:     42.89921725 +/-    0.0000
Time of Perihelion: 2481910.9572 +/-       0.0
Perihelion:          40.44820450 +/-    0.0000
Aphelion:            45.35023000 +/-    0.0000
Period (y)              280.9844 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.57174104 +/-    0.0000
Ecliptic Y           -6.97047760 +/-    0.0000
Ecliptic Z           -8.85525278 +/-    0.0000
Ecliptic XDOT         0.00050444 +/-    0.0000
Ecliptic YDOT        -0.00254166 +/-    0.0000
Ecliptic ZDOT         0.00035768 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.07221642 +/-    0.0000
Geocenter to KBO     42.12169456 +/-    0.0000
# Hcoef:  5.92

The following table shows the complete astrometric record for 472232. 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 (472232) followed by the observatory code and reference code for the source of the astrometry.

2012 04  13.35312  12 14 05.666  -14 46 05.09  22.1w 472232    F51  C~1vXK      
2012 04  13.36633  12 14 05.604  -14 46 04.61  22.2w 472232    F51  C~1vXK      
2012 04  13.37956  12 14 05.555  -14 46 04.19  22.0w 472232    F51  C~1vXK      
2012 04  13.39281  12 14 05.502  -14 46 03.59  22.1w 472232    F51  C~1vXK      
2014 03  27.10106  12 25 45.991  -15 39 16.61  22.1r 472232    807  C~1Reu      
2014 03  27.17562  12 25 45.620  -15 39 14.91        472232    807  C~1Reu      
2014 03  27.23678  12 25 45.340  -15 39 12.41        472232    807  C~1Reu      
2014 04  05.38034  12 25 04.139  -15 34 38.62  22.3w 472232    F51  C~1vXK      
2014 04  05.39155  12 25 04.098  -15 34 38.56  22.2w 472232    F51  C~1vXK      
2014 04  05.40278  12 25 04.049  -15 34 38.17  22.3w 472232    F51  C~1vXK      
2014 04  05.41401  12 25 03.986  -15 34 37.88  22.4w 472232    F51  C~1vXK      
2014 05  02.27195  12 23 14.284  -15 19 49.65  22.2r 472232    304  C~1Reu      
2014 05  02.28712  12 23 14.230  -15 19 49.08        472232    304  C~1Reu      
2014 05  25.28241  12 22 09.710  -15 07 38.69  22.6w 472232    F51  C~1vXK      
2014 05  25.29452  12 22 09.696  -15 07 38.16  22.3w 472232    F51  C~1vXK      
2014 05  25.30662  12 22 09.671  -15 07 37.81  22.3w 472232    F51  C~1vXK      
2014 05  25.31871  12 22 09.649  -15 07 37.65  22.2w 472232    F51  C~1vXK      
2015 01  20.59518  12 34 34.734  -16 12 41.83  22.1w 472232    F51  C~1vXK      
2015 01  20.60648  12 34 34.722  -16 12 41.98  22.4w 472232    F51  C~1vXK      
2015 01  20.61773  12 34 34.711  -16 12 41.93  22.3w 472232    F51  C~1vXK      
2015 01  20.62899  12 34 34.707  -16 12 42.08  22.2w 472232    F51  C~1vXK      
2015 01  22.60717  12 34 32.499  -16 12 59.07  22.4w 472232    F51  C~1vXK      
2015 01  22.61844  12 34 32.489  -16 12 59.25  22.4w 472232    F51  C~1vXK      
2015 01  22.62975  12 34 32.471  -16 12 59.26  22.3w 472232    F51  C~1vXK      
2015 01  22.64101  12 34 32.461  -16 12 59.45  22.7w 472232    F51  C~1vXK      
2015 03  20.48056  12 31 31.542  -16 03 43.75  22.4w 472232    F51  C~1vXK      
2015 03  20.49112  12 31 31.483  -16 03 43.04  22.5w 472232    F51  C~1vXK      
2015 03  20.50170  12 31 31.435  -16 03 42.90  22.1w 472232    F51  C~1vXK      
2015 03  20.53839  12 31 31.286  -16 03 42.11  22.2w 472232    F51  C~1vXK      
2015 03  21.32864  12 31 27.754  -16 03 21.46        472232    304  C~1Reu      
2015 03  21.37291  12 31 27.584  -16 03 20.12        472232    304  C~1Reu      
2015 03  21.43302  12 31 27.289  -16 03 19.40  22.4w 472232    F51  C~1vXK      
2015 03  21.44356  12 31 27.218  -16 03 19.35  22.4w 472232    F51  C~1vXK      
2015 03  21.45410  12 31 27.176  -16 03 18.72  22.1w 472232    F51  C~1vXK      
2015 03  21.46464  12 31 27.129  -16 03 18.35  22.1w 472232    F51  C~1vXK      
2015 04  17.99549  12 29 24.43   -15 49 28.8         472232    W84  C~1Tk6      
2015 04  17.99638  12 29 24.461  -15 49 28.44        472232    304  C~1Reu      
2015 04  18.99733  12 29 20.234  -15 48 55.36        472232    304  C~1Reu      
2015 04  20.00051  12 29 16.03   -15 48 22.3   22.5V 472232    W84  C~1Tk6      
2015 04  20.99498  12 29 11.91   -15 47 49.1         472232    W84  C~1Tk6      
2015 04  21.99552  12 29 07.80   -15 47 15.7         472232    W84  C~1Tk6      
2015 05  18.32684  12 27 37.439  -15 32 47.08  22.3w 472232    F51  C~1vXK      
2015 05  18.33993  12 27 37.398  -15 32 46.70  22.3w 472232    F51  C~1vXK      
2015 05  18.35299  12 27 37.345  -15 32 46.27  22.3w 472232    F51  C~1vXK      
2015 05  18.36610  12 27 37.333  -15 32 46.00  22.4w 472232    F51  C~1vXK      
2016 03  13.25641  12 37 16.65   -16 27 12.3   22.3R 472232    G37  C~1pQd      
2016 03  13.30506  12 37 16.45   -16 27 11.2         472232    G37  C~1pQd      
2016 03  28.39411  12 36 09.20   -16 20 50.9   23.0V 472232    W84  C~1qn2      
2016 03  28.40105  12 36 09.20   -16 20 50.8         472232    W84  C~1qn2      
2016 03  28.40799  12 36 09.20   -16 20 50.8         472232    W84  C~1qn2      
2016 03  29.37467  12 36 04.73   -16 20 23.0         472232    W84  C~1qn2      
2016 03  29.38161  12 36 04.74   -16 20 23.1         472232    W84  C~1qn2      
2016 03  29.38855  12 36 04.73   -16 20 23.2         472232    W84  C~1qn2      
2016 04  01.38551  12 35 51.08   -16 18 56.0         472232    W84  C~1qn2      
2016 04  01.39245  12 35 51.07   -16 18 55.9         472232    W84  C~1qn2      
2016 04  01.39939  12 35 51.08   -16 18 55.9         472232    W84  C~1qn2      

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    -0.19       0.00     1.24
  2   0.0000      0.00    -0.04       0.00     0.02
  3   0.0001      0.00     0.07       0.00     0.00
  4   0.0001      0.00     0.12       0.00     0.16
  5   1.9514      0.00     0.12       0.00    -0.41
  6   1.9516      0.00    -0.30       0.00    -0.82
  7   1.9518      0.00    -0.28       0.00    -0.07
  8   1.9768      0.00     0.04       0.00     0.14
  9   1.9768      0.00     0.19       0.00    -0.15
 10   1.9769      0.00     0.22       0.00    -0.11
 11   1.9769      0.00     0.05       0.00    -0.17
 12   2.0504      0.00     0.37       0.00    -0.17
 13   2.0505      0.00     0.37       0.00    -0.11
 14   2.1134      0.00    -0.15       0.00    -0.06
 15   2.1135      0.00     0.02       0.00     0.12
 16   2.1135      0.00     0.02       0.00     0.12
 17   2.1135      0.00     0.07       0.00    -0.08
 18   2.7714      0.00    -0.07       0.00     0.01
 19   2.7714      0.00    -0.07       0.00    -0.04
 20   2.7714      0.00    -0.04       0.00     0.12
 21   2.7715      0.00     0.08       0.00     0.07
 22   2.7769      0.00    -0.05       0.00     0.08
 23   2.7769      0.00     0.02       0.00    -0.01
 24   2.7769      0.00    -0.03       0.00     0.07
 25   2.7770      0.00     0.04       0.00    -0.03
 26   2.9326      0.00     0.09       0.00    -0.21
 27   2.9326      0.00    -0.08       0.00     0.23
 28   2.9326      0.00    -0.08       0.00     0.10
 29   2.9327      0.00     0.19       0.00    -0.05
 30   2.9349      0.00     0.27       0.00     0.23
 31   2.9350      0.00     0.73       0.00     0.42
 32   2.9352      0.00     0.15       0.00    -0.22
 33   2.9352      0.00    -0.19       0.00    -0.44
 34   2.9353      0.00    -0.10       0.00    -0.08
 35   2.9353      0.00    -0.08       0.00     0.02
 36   3.0107      0.00    -0.18       0.00     0.14
 37   3.0107      0.00     0.34       0.00     0.47
 38   3.0134      0.00     0.15       0.00     0.36
 39   3.0161      0.00    -0.05       0.00     0.04
 40   3.0189      0.00    -0.07       0.00     0.07
 41   3.0216      0.00    -0.11       0.00     0.02
 42   3.0937      0.00     0.02       0.00     0.06
 43   3.0937      0.00    -0.06       0.00     0.03
 44   3.0938      0.00    -0.32       0.00     0.05
 45   3.0938      0.00     0.04       0.00    -0.10
 46   3.9149      0.00    -0.20       0.00     0.28
 47   3.9150      0.00    -0.02       0.00     0.32
 48   3.9563      0.00    -0.45       0.00     0.03
 49   3.9563      0.00     0.03       0.00    -0.07
 50   3.9563      0.00     0.51       0.00    -0.27
 51   3.9590      0.00    -0.65       0.00     0.16
 52   3.9590      0.00    -0.03       0.00    -0.14
 53   3.9590      0.00     0.30       0.00    -0.44
 54   3.9672      0.00    -0.04       0.00    -0.09
 55   3.9673      0.00     0.28       0.00    -0.19
 56   3.9673      0.00     0.91       0.00    -0.40

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.

472232    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.815    42.815    42.815
ecceobj         0.058     0.058     0.058
incobj         13.925    13.925    13.925
qmin           39.835    39.840    39.838
qmax           46.472    46.467    46.475
amean          43.055    43.055    43.055
amin           42.723    42.722    42.728
amax           43.397    43.398    43.395
emean           0.058     0.058     0.058
emin            0.046     0.046     0.046
emax            0.071     0.071     0.071
imean          15.464    15.464    15.464
imin           14.916    14.918    14.914
imax           15.916    15.918    15.909
excite_mean     0.273     0.273     0.273
fracstop        1.000     1.000     1.000
cjmean          2.999     2.999     2.999

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       179.0     178.9     179.0
kozaiamp        180.0     179.9     180.0