Orbit Fit and Astrometric record for 495613

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: 495613    
# Created Sat Oct 21 01:36:54 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   83 observations of   83
# Arc:  10.99y
# First observation: 2005/03/12
#  Last observation: 2016/03/10
# Chi-squared of fit:   106.32 DOF:  160 RMS:  0.20
# Min/Max residuals:    -0.52    1.35
# Exact a, adot, b, bdot, g, gdot:
  1.388793E-05  2.133681E-02 -5.920483E-06 -9.748716E-03  2.430578E-02 -2.906987E-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
   28.003319 -166.235960    0.370753    0.430860   -0.810037  2453441.862836
# Heliocentric elements and errors
Epoch:              2453442.5000  =  2005/03/13
Mean Anomaly:          281.81221 +/-     0.000
Argument of Peri:      221.13953 +/-     0.000
Long of Asc Node:       58.70313 +/-     0.000
Inclination:            36.01566 +/-     0.000
Eccentricity:         0.12627062 +/-    0.0000
Semi-Major Axis:     42.38930370 +/-    0.0000
Time of Perihelion: 2475336.2064 +/-       0.0
Perihelion:          37.03678011 +/-    0.0000
Aphelion:            47.74182730 +/-    0.0000
Period (y)              275.9895 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -36.26605025 +/-    0.0000
Ecliptic Y           -8.50168915 +/-    0.0000
Ecliptic Z           19.31713518 +/-    0.0000
Ecliptic XDOT         0.00035196 +/-    0.0000
Ecliptic YDOT        -0.00239543 +/-    0.0000
Ecliptic ZDOT        -0.00112323 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.96026107 +/-    0.0000
Geocenter to KBO     41.14258955 +/-    0.0000
# Hcoef:  5.29

The following table shows the complete astrometric record for 495613. 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 (495613) followed by the observatory code and reference code for the source of the astrometry.

2005 03  12.362093 13 35 29.00   +20 19 02.2         495613    645  C~1nwK      
2005 03  12.362508 13 35 29.00   +20 19 02.3   21.7V 495613    645  C~1nwK      
2005 03  12.362923 13 35 29.00   +20 19 02.3         495613    645  C~1nwK      
2005 03  12.363337 13 35 29.00   +20 19 02.3   21.2V 495613    645  C~1nwK      
2005 03  12.365410 13 35 28.98   +20 19 02.4         495613    645  C~1nwK      
2005 03  12.365825 13 35 28.98   +20 19 02.4   22.4V 495613    645  C~1nwK      
2011 04  13.37111  13 55 23.641  +14 19 14.90  21.1i 495613    F51  C~1vYV      
2011 04  13.38240  13 55 23.583  +14 19 15.28  21.0i 495613    F51  C~1vYV      
2011 04  13.39508  13 55 23.524  +14 19 15.45  21.1r 495613    F51  C~1vYV      
2011 04  13.40536  13 55 23.476  +14 19 15.80  21.4r 495613    F51  C~1vYV      
2012 04  01.53108  13 59 57.314  +13 09 45.35  21.0i 495613    F51  C~1vYV      
2012 04  01.54253  13 59 57.258  +13 09 45.70  20.9i 495613    F51  C~1vYV      
2012 04  01.57751  13 59 57.099  +13 09 46.60  21.0i 495613    F51  C~1vYV      
2012 04  01.58915  13 59 57.041  +13 09 47.06  20.9i 495613    F51  C~1vYV      
2014 03  25.59970  14 07 48.836  +10 54 40.85  21.3r 495613    F51  C~1vYV      
2014 03  25.60292  14 07 48.800  +10 54 41.03  21.5r 495613    F51  C~1vYV      
2014 03  25.60610  14 07 48.778  +10 54 40.99  21.4r 495613    F51  C~1vYV      
2014 03  25.60929  14 07 48.785  +10 54 41.37  21.1r 495613    F51  C~1vYV      
2014 05  19.41227  14 03 24.232  +11 10 32.24  21.2i 495613    F51  C~1vYV      
2014 05  19.42388  14 03 24.184  +11 10 32.31  21.1i 495613    F51  C~1vYV      
2014 05  19.43545  14 03 24.127  +11 10 32.33  21.4i 495613    F51  C~1vYV      
2014 05  19.44706  14 03 24.077  +11 10 32.38  20.9i 495613    F51  C~1vYV      
2015 03  18.44703  14 11 57.803  +09 44 14.34  21.7w 495613    F51  C@0616      
2015 03  18.45937  14 11 57.755  +09 44 14.68  21.6w 495613    F51  C@0616      
2015 03  18.47169  14 11 57.703  +09 44 15.18  21.6w 495613    F51  C@0616      
2015 03  18.48399  14 11 57.655  +09 44 15.53  21.6w 495613    F51  C@0617      
2015 03  23.33609  14 11 38.32   +09 46 49.9   20.5V 495613    G84  C~1SiI      
2015 03  23.36184  14 11 38.23   +09 46 50.8   20.4V 495613    G84  C~1SiI      
2015 03  23.387118 14 11 38.107  +09 46 51.05  21.2R 495613    695  C~1SiI      
2015 03  23.38757  14 11 38.11   +09 46 51.4   20.3V 495613    G84  C~1SiI      
2015 03  23.395292 14 11 38.055  +09 46 51.42  21.0R 495613    695  C~1SiI      
2015 03  23.403466 14 11 38.041  +09 46 51.64  20.6R 495613    695  C~1SiI      
2015 03  24.30186  14 11 34.31   +09 47 19.6   20.4V 495613    G84  C~1SiI      
2015 03  24.32777  14 11 34.24   +09 47 20.9   20.5V 495613    G84  C~1SiI      
2015 03  24.35359  14 11 34.11   +09 47 21.4   20.1V 495613    G84  C~1SiI      
2015 03  24.37910  14 11 33.99   +09 47 22.5   20.6V 495613    G84  C~1SiI      
2015 03  24.386195 14 11 33.960  +09 47 22.67  20.9R 495613    695  C~1SiI      
2015 03  24.394280 14 11 33.915  +09 47 23.00  20.5R 495613    695  C~1SiI      
2015 03  24.402338 14 11 33.886  +09 47 23.25  20.6R 495613    695  C~1SiI      
2015 03  27.363600 14 11 21.296  +09 48 54.09  20.8R 495613    695  C~1SiI      
2015 03  27.371736 14 11 21.250  +09 48 53.70  21.0R 495613    695  C~1SiI      
2015 03  27.380428 14 11 21.225  +09 48 54.37  21.3R 495613    695  C~1SiI      
2015 04  10.38844  14 10 16.462  +09 55 23.54  21.4r 495613    F51  C~1vYV      
2015 04  10.40018  14 10 16.404  +09 55 23.54  21.6r 495613    F51  C~1vYV      
2015 04  10.41141  14 10 16.351  +09 55 24.08  21.6r 495613    F51  C~1vYV      
2015 04  10.42259  14 10 16.319  +09 55 24.29  21.3r 495613    F51  C~1vYV      
2015 04  18.334925 14 09 37.167  +09 58 26.14  21.0R 495613    695  C~1SiI      
2015 04  18.343073 14 09 37.101  +09 58 26.36  21.0R 495613    695  C~1SiI      
2015 04  18.349201 14 09 37.064  +09 58 26.62  21.0R 495613    695  C~1SiI      
2015 04  19.347512 14 09 32.063  +09 58 47.16  20.8R 495613    695  C~1SiI      
2015 04  19.355680 14 09 32.031  +09 58 47.32  20.4R 495613    695  C~1SiI      
2015 04  19.363854 14 09 31.993  +09 58 47.75  20.6R 495613    695  C~1SiI      
2015 04  22.322159 14 09 17.095  +09 59 45.68  20.9R 495613    695  C~1SiI      
2015 04  22.330312 14 09 17.045  +09 59 45.75  21.1R 495613    695  C~1SiI      
2015 04  22.338461 14 09 17.018  +09 59 45.89  21.1R 495613    695  C~1SiI      
2015 04  23.347457 14 09 11.907  +10 00 04.57  20.7R 495613    695  C~1SiI      
2015 04  23.355625 14 09 11.877  +10 00 04.59  20.9R 495613    695  C~1SiI      
2015 04  23.366221 14 09 11.845  +10 00 04.69  20.9R 495613    695  C~1SiI      
2015 05  19.250825 14 07 05.131  +10 04 18.39        495613    695  C~1SiI      
2015 05  19.258996 14 07 05.110  +10 04 18.30  20.9R 495613    695  C~1SiI      
2015 05  19.267170 14 07 05.075  +10 04 18.15  20.9R 495613    695  C~1SiI      
2015 05  20.244230 14 07 00.625  +10 04 18.59  20.7R 495613    695  C~1SiI      
2015 05  20.252402 14 07 00.586  +10 04 18.58  20.8R 495613    695  C~1SiI      
2015 05  20.260567 14 07 00.548  +10 04 18.62  21.0R 495613    695  C~1SiI      
2015 05  23.255122 14 06 47.248  +10 04 15.52  20.9R 495613    695  C~1SiI      
2015 05  23.263385 14 06 47.205  +10 04 15.39  20.6R 495613    695  C~1SiI      
2015 05  23.271646 14 06 47.171  +10 04 15.44  20.6R 495613    695  C~1SiI      
2015 07  01.32897  14 04 43.584  +09 53 42.44  21.5i 495613    F51  C~1vYV      
2015 07  01.34005  14 04 43.560  +09 53 42.14  21.0i 495613    F51  C~1vYV      
2015 07  01.35108  14 04 43.538  +09 53 41.82  21.3i 495613    F51  C~1vYV      
2015 07  01.36216  14 04 43.522  +09 53 41.40  21.3i 495613    F51  C~1vYV      
2015 07  02.32301  14 04 41.957  +09 53 12.68  21.3i 495613    F51  C~1vYV      
2015 07  02.33420  14 04 41.935  +09 53 12.45  21.1i 495613    F51  C~1vYV      
2015 07  02.34514  14 04 41.918  +09 53 11.98  21.0i 495613    F51  C~1vYV      
2015 07  02.35622  14 04 41.896  +09 53 11.71  21.2i 495613    F51  C~1vYV      
2016 01  30.48429  14 17 04.92   +08 13 32.0   20.7R 495613    695  C~2FaV      
2016 01  30.53176  14 17 04.93   +08 13 33.2         495613    695  C~2FaV      
2016 02  04.47350  14 17 05.31   +08 15 35.8   20.8R 495613    G37  C~2FaV      
2016 02  04.53551  14 17 05.27   +08 15 37.6         495613    G37  C~2FaV      
2016 03  09.05127  14 16 06.84   +08 32 34.6   20.2R 495613    461  C~1nwK      
2016 03  09.05923  14 16 06.81   +08 32 34.8   20.2R 495613    461  C~1nwK      
2016 03  09.98256  14 16 03.85   +08 33 05.0   20.5R 495613    461  C~1nwK      
2016 03  10.02619  14 16 03.71   +08 33 06.2   20.5R 495613    461  C~1nwK      

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    -0.14       0.00     1.35
  2   0.0000      0.00     0.03       0.00    -0.02
  3   0.0000      0.00     0.06       0.00    -0.04
  4   0.0000      0.00     0.08       0.00    -0.05
  5   0.0000      0.00    -0.09       0.00    -0.03
  6   0.0000      0.00    -0.06       0.00    -0.05
  7   6.0863      0.00     0.08       0.00    -0.05
  8   6.0863      0.00     0.07       0.00     0.07
  9   6.0863      0.00     0.15       0.00    -0.05
 10   6.0864      0.00     0.21       0.00     0.07
 11   7.0559      0.00     0.14       0.00     0.11
 12   7.0559      0.00     0.12       0.00     0.14
 13   7.0560      0.00     0.24       0.00     0.04
 14   7.0561      0.00     0.20       0.00     0.17
 15   9.0356      0.00     0.22       0.00    -0.23
 16   9.0356      0.00    -0.11       0.00    -0.15
 17   9.0356      0.00    -0.23       0.00    -0.29
 18   9.0356      0.00     0.08       0.00    -0.00
 19   9.1856      0.00     0.16       0.00     0.12
 20   9.1857      0.00     0.24       0.00     0.20
 21   9.1857      0.00     0.18       0.00     0.22
 22   9.1857      0.00     0.22       0.00     0.28
 23  10.0153      0.00    -0.00       0.00     0.01
 24  10.0153      0.00    -0.00       0.00    -0.05
 25  10.0154      0.00    -0.06       0.00     0.05
 26  10.0154      0.00    -0.05       0.00     0.00
 27  10.0287      0.00    -0.11       0.00    -0.07
 28  10.0287      0.00     0.17       0.00     0.02
 29  10.0288      0.00    -0.09       0.00    -0.52
 30  10.0288      0.00    -0.01       0.00    -0.18
 31  10.0288      0.00    -0.35       0.00    -0.41
 32  10.0289      0.00    -0.05       0.00    -0.44
 33  10.0313      0.00    -0.16       0.00    -0.49
 34  10.0314      0.00     0.44       0.00     0.01
 35  10.0315      0.00     0.14       0.00    -0.30
 36  10.0315      0.00    -0.03       0.00     0.01
 37  10.0316      0.00    -0.03       0.00    -0.04
 38  10.0316      0.00    -0.19       0.00     0.04
 39  10.0316      0.00    -0.11       0.00     0.04
 40  10.0397      0.00     0.20       0.00     0.14
 41  10.0397      0.00     0.04       0.00    -0.49
 42  10.0397      0.00     0.24       0.00    -0.09
 43  10.0781      0.00    -0.00       0.00     0.13
 44  10.0781      0.00    -0.00       0.00    -0.16
 45  10.0782      0.00     0.03       0.00     0.09
 46  10.0782      0.00     0.38       0.00     0.02
 47  10.0999      0.00     0.15       0.00    -0.09
 48  10.0999      0.00    -0.22       0.00    -0.04
 49  10.0999      0.00    -0.31       0.00     0.09
 50  10.1026      0.00    -0.17       0.00    -0.02
 51  10.1027      0.00    -0.03       0.00    -0.03
 52  10.1027      0.00     0.03       0.00     0.24
 53  10.1108      0.00     0.00       0.00     0.26
 54  10.1108      0.00    -0.12       0.00     0.18
 55  10.1108      0.00     0.10       0.00     0.16
 56  10.1136      0.00    -0.16       0.00     0.25
 57  10.1136      0.00     0.02       0.00     0.12
 58  10.1136      0.00     0.36       0.00     0.03
 59  10.1845      0.00    -0.05       0.00     0.22
 60  10.1845      0.00     0.20       0.00     0.12
 61  10.1845      0.00     0.24       0.00    -0.03
 62  10.1872      0.00    -0.06       0.00    -0.07
 63  10.1872      0.00    -0.08       0.00    -0.08
 64  10.1873      0.00    -0.09       0.00    -0.04
 65  10.1955      0.00     0.27       0.00    -0.20
 66  10.1955      0.00     0.18       0.00    -0.32
 67  10.1955      0.00     0.22       0.00    -0.25
 68  10.3024      0.00    -0.01       0.00     0.01
 69  10.3025      0.00    -0.08       0.00     0.04
 70  10.3025      0.00    -0.12       0.00     0.05
 71  10.3025      0.00    -0.07       0.00    -0.04
 72  10.3052      0.00     0.07       0.00     0.03
 73  10.3052      0.00     0.02       0.00     0.14
 74  10.3052      0.00     0.04       0.00     0.01
 75  10.3053      0.00    -0.01       0.00     0.07
 76  10.8860      0.00    -0.12       0.00    -0.16
 77  10.8862      0.00    -0.14       0.00    -0.09
 78  10.8997      0.00     0.27       0.00     0.14
 79  10.8999      0.00    -0.10       0.00     0.33
 80  10.9916      0.00     0.25       0.00     0.06
 81  10.9916      0.00     0.18       0.00     0.00
 82  10.9942      0.00     0.23       0.00     0.27
 83  10.9943      0.00     0.30       0.00     0.06

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.

495613    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.940    41.939    41.940
ecceobj         0.126     0.126     0.126
incobj         36.108    36.108    36.108
qmin           35.161    35.165    35.157
qmax           49.480    49.436    49.583
amean          42.208    42.213    42.210
amin           41.849    41.863    41.853
amax           42.606    42.606    42.626
emean           0.129     0.127     0.130
emin            0.093     0.086     0.094
emax            0.164     0.164     0.164
imean          34.796    34.812    34.786
imin           34.356    34.337    34.363
imax           35.329    35.353    35.347
excite_mean     0.585     0.585     0.585
fracstop        1.000     1.000     1.000
cjmean          2.642     2.642     2.642

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       183.2     181.4     180.4
kozaiamp        179.9     180.0     180.0