Orbit Fit and Astrometric record for 471172

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: 471172    
# Created Wed Dec 13 02:36:51 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   84 observations of   84
# Arc:   5.19y
# First observation: 2010/05/12
#  Last observation: 2015/07/19
# Chi-squared of fit:   198.66 DOF:  162 RMS:  0.27
# Min/Max residuals:    -0.86    1.51
# Exact a, adot, b, bdot, g, gdot:
  1.846847E-05  3.739582E-02 -2.159325E-06 -2.035516E-03  3.025548E-02 -8.183307E-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
    0.257397 -133.816585   -0.081115    0.004521   -1.007764  2455328.508826
# Heliocentric elements and errors
Epoch:              2455328.5000  =  2010/05/12
Mean Anomaly:          344.14821 +/-     0.000
Argument of Peri:      217.26483 +/-     0.000
Long of Asc Node:       50.90003 +/-     0.000
Inclination:             3.12915 +/-     0.000
Eccentricity:         0.43106693 +/-    0.0000
Semi-Major Axis:     55.26508048 +/-    0.0000
Time of Perihelion: 2461936.2010 +/-       0.0
Perihelion:          31.44213203 +/-    0.0000
Aphelion:            79.08802893 +/-    0.0000
Period (y)              410.8511 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -23.51800673 +/-    0.0000
Ecliptic Y          -24.63457912 +/-    0.0000
Ecliptic Z            0.14840530 +/-    0.0000
Ecliptic XDOT         0.00295559 +/-    0.0000
Ecliptic YDOT        -0.00180321 +/-    0.0000
Ecliptic ZDOT        -0.00018756 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.05863626 +/-    0.0000
Geocenter to KBO     33.05203214 +/-    0.0000
# Hcoef:  6.04

The following table shows the complete astrometric record for 471172. 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 (471172) followed by the observatory code and reference code for the source of the astrometry.

2010 05  12.00806  14 55 10.587  -16 25 59.12  20.6R 471172    809  C~0HKu      
2010 05  12.09388  14 55 10.049  -16 25 57.21  20.6R 471172    809  C~0HKu      
2010 05  12.17664  14 55 09.598  -16 25 55.38  20.7R 471172    809  C~0HKu      
2010 05  13.29637  14 55 03.186  -16 25 29.35  20.6R 471172    809  C~0HKu      
2010 05  21.00757  14 54 20.159  -16 22 32.58        471172    807  C~0Hrf      
2010 05  21.99538  14 54 14.820  -16 22 10.12        471172    807  C~0Hrf      
2010 05  22.03365  14 54 14.555  -16 22 09.54        471172    807  C~0Hrf      
2010 06  05.04583  14 53 02.032  -16 17 14.16  20.8R 471172    807  C~0IRv      
2010 06  05.12450  14 53 01.616  -16 17 12.94  21.1R 471172    807  C~0IRv      
2010 07  07.99999  14 51 04.581  -16 09 30.02  21.1R 471172    807  C~0KZk      
2010 07  08.11675  14 51 04.360  -16 09 29.39  21.1R 471172    807  C~0KZk      
2011 05  04.09330  15 04 28.293  -17 12 19.83  20.4R 471172    809  C~0WjO      
2011 05  04.23312  15 04 27.433  -17 12 16.20  20.2R 471172    809  C~0WjO      
2011 05  04.33753  15 04 26.821  -17 12 13.96  20.4R 471172    809  C~0WjO      
2011 05  27.07785  15 02 17.59   -17 03 48.0         471172    809  C~0WjO      
2011 05  27.18130  15 02 16.92   -17 03 46.0         471172    809  C~0WjO      
2011 06  02.33078  15 01 44.326  -17 01 38.59  21.2w 471172    F51  C~1vWD      
2011 06  02.34406  15 01 44.258  -17 01 38.32  21.0w 471172    F51  C~1vWD      
2011 06  02.35733  15 01 44.184  -17 01 38.01  21.1w 471172    F51  C~1vWD      
2011 06  02.37060  15 01 44.111  -17 01 37.81  21.1w 471172    F51  C~1vWD      
2011 07  06.11678  14 59 29.64   -16 52 59.9         471172    807  C~0gN8      
2011 07  06.16949  14 59 29.54   -16 52 59.5         471172    807  C~0gN8      
2012 01  31.63405  15 16 47.575  -18 06 58.36  21.5w 471172    F51  C~1vWD      
2012 01  31.63937  15 16 47.597  -18 06 58.36  21.4w 471172    F51  C~1vWD      
2012 01  31.64468  15 16 47.611  -18 06 58.45  21.3w 471172    F51  C~1vWD      
2012 01  31.65000  15 16 47.626  -18 06 58.54  21.4w 471172    F51  C~1vWD      
2012 05  19.39054  15 11 37.743  -17 48 59.06  21.0w 471172    F51  C~1vWD      
2012 05  19.40601  15 11 37.647  -17 48 58.68  21.1w 471172    F51  C~1vWD      
2012 05  19.42149  15 11 37.560  -17 48 58.32  21.2w 471172    F51  C~1vWD      
2012 05  19.43698  15 11 37.472  -17 48 57.92  21.1w 471172    F51  C~1vWD      
2013 05  11.41049  15 21 20.273  -18 33 40.14  21.0w 471172    F51  C~1vWD      
2013 05  11.42436  15 21 20.183  -18 33 39.82  21.0w 471172    F51  C~1vWD      
2013 05  11.43821  15 21 20.101  -18 33 39.49  20.9w 471172    F51  C~1vWD      
2013 06  04.37410  15 19 02.516  -18 25 31.56  21.0w 471172    F51  C~1vWD      
2013 06  04.38903  15 19 02.431  -18 25 31.25  20.9w 471172    F51  C~1vWD      
2013 06  04.40374  15 19 02.356  -18 25 30.95  21.0w 471172    F51  C~1vWD      
2013 06  04.41838  15 19 02.282  -18 25 30.58  21.0w 471172    F51  C~1vWD      
2014 03  14.56433  15 34 45.942  -19 27 57.17  21.1i 471172    F51  C~1vWD      
2014 03  14.60888  15 34 45.882  -19 27 56.20  21.0i 471172    F51  C~1vWD      
2014 03  14.62484  15 34 45.827  -19 27 56.21  20.9i 471172    F51  C~1vWD      
2014 03  28.59081  15 34 08.503  -19 26 09.37  21.4w 471172    F51  C~1vWD      
2014 03  28.60140  15 34 08.469  -19 26 10.13  21.4w 471172    F51  C~1vWE      
2014 03  28.61196  15 34 08.444  -19 26 09.59  21.1w 471172    F51  C~1vWE      
2014 03  28.62253  15 34 08.387  -19 26 09.61  21.5w 471172    F51  C~1vWE      
2014 04  30.46089  15 31 32.841  -19 17 58.13  21.1w 471172    F51  C~1vWE      
2014 04  30.47277  15 31 32.779  -19 17 57.96  21.2w 471172    F51  C~1vWE      
2014 04  30.48465  15 31 32.708  -19 17 57.65  21.1w 471172    F51  C~1vWE      
2014 04  30.49652  15 31 32.639  -19 17 57.43  21.2w 471172    F51  C~1vWE      
2014 05  08.47781  15 30 46.147  -19 15 24.98  21.0w 471172    F51  C~1vWE      
2014 05  08.48993  15 30 46.075  -19 15 24.81  21.1w 471172    F51  C~1vWE      
2014 05  08.50205  15 30 45.997  -19 15 24.60  21.2w 471172    F51  C~1vWE      
2014 05  08.51415  15 30 45.922  -19 15 24.30  21.1w 471172    F51  C~1vWE      
2014 06  19.34013  15 26 51.092  -19 02 16.38  21.2w 471172    F51  C~1vWE      
2014 06  19.35073  15 26 51.037  -19 02 16.20  21.5w 471172    F51  C~1vWE      
2014 06  19.36131  15 26 50.984  -19 02 16.19  21.5w 471172    F51  C~1vWE      
2014 06  19.37191  15 26 50.937  -19 02 15.90  21.4w 471172    F51  C~1vWE      
2014 07  25.27022  15 25 01.149  -18 56 09.70  21.3w 471172    F51  C~1vWE      
2014 07  25.28081  15 25 01.140  -18 56 09.66  21.3w 471172    F51  C~1vWE      
2014 07  25.29139  15 25 01.125  -18 56 09.50  21.2w 471172    F51  C~1vWE      
2014 07  25.30195  15 25 01.117  -18 56 09.69  21.3w 471172    F51  C~1vWE      
2015 02  25.62994  15 44 08.183  -20 06 01.75  21.3w 471172    F51  C~1vWE      
2015 02  25.63991  15 44 08.181  -20 06 01.69  21.4w 471172    F51  C~1vWE      
2015 02  25.64992  15 44 08.182  -20 06 01.83  21.3w 471172    F51  C~1vWE      
2015 03  30.53908  15 43 18.626  -20 04 21.69  20.8i 471172    F51  C~1vWE      
2015 03  30.55042  15 43 18.582  -20 04 21.74  21.0i 471172    F51  C~1vWE      
2015 03  30.56172  15 43 18.552  -20 04 21.81  21.2i 471172    F51  C~1vWE      
2015 03  30.57302  15 43 18.508  -20 04 21.46  21.0i 471172    F51  C~1vWE      
2015 04  24.35577  15 41 27.53   -19 59 02.1   20.8R 471172    G37  C~1ReZ      
2015 04  24.44962  15 41 27.02   -19 59 00.4         471172    G37  C~1ReZ      
2015 05  24.42273  15 38 31.204  -19 50 00.74  20.9w 471172    F51  C~1vWE      
2015 05  24.43423  15 38 31.139  -19 50 00.47  21.0w 471172    F51  C~1vWE      
2015 05  24.44573  15 38 31.072  -19 50 00.34  21.2w 471172    F51  C~1vWE      
2015 05  24.45720  15 38 31.008  -19 50 00.12  21.4w 471172    F51  C~1vWE      
2015 05  25.37766  15 38 25.482  -19 49 42.74  20.8i 471172    F51  C~1vWE      
2015 05  25.38897  15 38 25.413  -19 49 42.50  20.7i 471172    F51  C@0612      
2015 05  25.40030  15 38 25.346  -19 49 42.25  20.8i 471172    F51  C@0612      
2015 05  25.41161  15 38 25.271  -19 49 41.98  20.7i 471172    F51  C@0612      
2015 06  08.41503  15 37 03.983  -19 45 24.84  21.1r 471172    F51  C~1vWE      
2015 06  08.42665  15 37 03.918  -19 45 24.64  21.4r 471172    F51  C~1vWE      
2015 06  08.43784  15 37 03.862  -19 45 24.38  21.4r 471172    F51  C~1vWE      
2015 07  19.27661  15 34 17.667  -19 36 31.97  21.3w 471172    F51  C~1vWE      
2015 07  19.28743  15 34 17.638  -19 36 31.86  21.2w 471172    F51  C~1vWE      
2015 07  19.29838  15 34 17.613  -19 36 31.72  21.3w 471172    F51  C~1vWE      
2015 07  19.30951  15 34 17.589  -19 36 31.74  21.3w 471172    F51  C~1vWE      

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    -0.09       0.00     0.29
  2   0.0002      0.00    -0.32       0.00     0.08
  3   0.0005      0.00     0.09       0.00    -0.01
  4   0.0035      0.00    -0.68       0.00     0.00
  5   0.0246      0.00     0.11       0.00     0.34
  6   0.0273      0.00     1.19       0.00     0.66
  7   0.0274      0.00     0.39       0.00     0.39
  8   0.0658      0.00    -0.22       0.00     0.07
  9   0.0660      0.00    -0.66       0.00    -0.25
 10   0.1560      0.00    -0.05       0.00    -0.29
 11   0.1564      0.00     0.40       0.00    -0.55
 12   0.9776      0.00     1.51       0.00    -0.13
 13   0.9780      0.00     0.86       0.00     0.38
 14   0.9783      0.00     0.82       0.00     0.26
 15   1.0406      0.00     0.83       0.00     0.20
 16   1.0409      0.00    -0.63       0.00    -0.01
 17   1.0577      0.00    -0.12       0.00    -0.20
 18   1.0577      0.00    -0.08       0.00    -0.20
 19   1.0578      0.00    -0.15       0.00    -0.15
 20   1.0578      0.00    -0.19       0.00    -0.22
 21   1.1502      0.00    -0.86       0.00    -0.13
 22   1.1503      0.00    -0.31       0.00    -0.23
 23   1.7238      0.00    -0.31       0.00    -0.10
 24   1.7238      0.00    -0.20       0.00    -0.04
 25   1.7239      0.00    -0.20       0.00    -0.07
 26   1.7239      0.00    -0.19       0.00    -0.09
 27   2.0216      0.00     0.00       0.00    -0.16
 28   2.0216      0.00    -0.07       0.00    -0.11
 29   2.0217      0.00    -0.01       0.00    -0.08
 30   2.0217      0.00     0.03       0.00    -0.02
 31   2.9990      0.00     0.15       0.00    -0.07
 32   2.9991      0.00     0.05       0.00    -0.04
 33   2.9991      0.00     0.08       0.00     0.00
 34   3.0647      0.00     0.06       0.00    -0.06
 35   3.0647      0.00     0.02       0.00    -0.04
 36   3.0647      0.00     0.10       0.00    -0.02
 37   3.0648      0.00     0.20       0.00     0.07
 38   3.8400      0.00    -0.29       0.00    -0.74
 39   3.8401      0.00     0.15       0.00     0.01
 40   3.8402      0.00    -0.20       0.00    -0.08
 41   3.8784      0.00    -0.09       0.00     0.48
 42   3.8784      0.00    -0.04       0.00    -0.39
 43   3.8785      0.00     0.14       0.00     0.04
 44   3.8785      0.00    -0.15       0.00    -0.09
 45   3.9684      0.00     0.01       0.00    -0.08
 46   3.9684      0.00     0.12       0.00    -0.13
 47   3.9685      0.00     0.09       0.00    -0.04
 48   3.9685      0.00     0.09       0.00    -0.04
 49   3.9903      0.00     0.14       0.00     0.05
 50   3.9904      0.00     0.15       0.00    -0.01
 51   3.9904      0.00     0.08       0.00    -0.04
 52   3.9904      0.00     0.05       0.00     0.02
 53   4.1049      0.00     0.13       0.00     0.00
 54   4.1050      0.00     0.07       0.00     0.01
 55   4.1050      0.00     0.04       0.00    -0.15
 56   4.1050      0.00     0.09       0.00    -0.03
 57   4.2033      0.00    -0.04       0.00     0.02
 58   4.2033      0.00     0.03       0.00     0.02
 59   4.2034      0.00     0.01       0.00     0.15
 60   4.2034      0.00     0.09       0.00    -0.08
 61   4.7929      0.00     0.12       0.00     0.04
 62   4.7930      0.00     0.03       0.00     0.14
 63   4.7930      0.00    -0.02       0.00     0.03
 64   4.8830      0.00    -0.03       0.00     0.23
 65   4.8831      0.00    -0.09       0.00     0.07
 66   4.8831      0.00     0.06       0.00    -0.10
 67   4.8831      0.00    -0.01       0.00     0.15
 68   4.9510      0.00     0.13       0.00    -0.15
 69   4.9512      0.00     0.19       0.00     0.03
 70   5.0333      0.00     0.02       0.00    -0.01
 71   5.0333      0.00     0.11       0.00     0.04
 72   5.0334      0.00     0.16       0.00    -0.05
 73   5.0334      0.00     0.25       0.00    -0.05
 74   5.0359      0.00     0.08       0.00    -0.01
 75   5.0360      0.00     0.08       0.00     0.02
 76   5.0360      0.00     0.11       0.00     0.05
 77   5.0360      0.00     0.02       0.00     0.11
 78   5.0744      0.00     0.00       0.00    -0.03
 79   5.0744      0.00     0.01       0.00    -0.04
 80   5.0744      0.00     0.12       0.00     0.02
 81   5.1862      0.00     0.12       0.00     0.03
 82   5.1863      0.00     0.05       0.00     0.07
 83   5.1863      0.00     0.05       0.00     0.13
 84   5.1863      0.00     0.06       0.00     0.04

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.

471172    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        54.736    54.735    54.736
ecceobj         0.426     0.426     0.426
incobj          3.133     3.133     3.133
qmin           30.868    30.869    30.868
qmax           81.463    81.453    81.549
amean          55.462    55.462    55.462
amin           54.692    54.708    54.700
amax           56.450    56.444    56.479
emean           0.433     0.433     0.433
emin            0.423     0.422     0.422
emax            0.443     0.444     0.444
imean           2.548     2.547     2.548
imin            2.438     2.432     2.439
imax            2.641     2.642     2.641
excite_mean     0.435     0.435     0.435
fracstop        1.000     1.000     1.000
cjmean          2.988     2.988     2.988

libcent 0       180.4     179.6     179.4
libamp  0        87.3      89.4      86.5
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       127.6     128.6     127.2
kozaiamp        179.9     179.9     180.0