Orbit Fit and Astrometric record for 13CV82

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: 13CV82    
# Created Sun Oct 21 01:09:13 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   70 observations of   70
# Arc:   7.22y
# First observation: 2011/01/23
#  Last observation: 2018/04/12
# Chi-squared of fit:    71.44 DOF:  134 RMS:  0.18
# Min/Max residuals:    -0.69    0.55
# Exact a, adot, b, bdot, g, gdot:
  2.984340E-05  1.569754E-01  9.656919E-06  4.782565E-02  8.613669E-02 -5.003703E-02
# Covariance matrix:
  7.0678E-14 -1.5240E-14  1.0521E-14 -2.9775E-15  1.6465E-16 -9.9160E-16
 -1.5240E-14  3.6399E-15 -3.0523E-15  8.7125E-16 -2.2337E-16  3.1205E-16
  1.0521E-14 -3.0523E-15  4.3753E-14 -7.5537E-15  5.2470E-16 -4.1636E-16
 -2.9775E-15  8.7125E-16 -7.5537E-15  1.4316E-15 -2.2475E-16  1.3022E-16
  1.6465E-16 -2.2337E-16  5.2470E-16 -2.2475E-16  1.8206E-15 -3.0092E-16
 -9.9160E-16  3.1205E-16 -4.1636E-16  1.3022E-16 -3.0092E-16  8.0088E-17
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.765904  114.459317   -0.149275   -0.131843   -0.966736  2455585.004186
# Heliocentric elements and errors
Epoch:              2455584.5000  =  2011/01/23
Mean Anomaly:          329.75866 +/-     0.022
Argument of Peri:       40.72694 +/-     0.000
Long of Asc Node:      137.13003 +/-     0.000
Inclination:            18.55205 +/-     0.000
Eccentricity:         0.37459335 +/-    0.0001
Semi-Major Axis:     17.04661944 +/-    0.0000
Time of Perihelion: 2457744.0058 +/-       1.5
Perihelion:          10.66106919 +/-    0.0015
Aphelion:            23.43216970 +/-    0.0015
Period (y)               70.3826 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -5.29880024 +/-    0.0000
Ecliptic Y           11.29626314 +/-    0.0000
Ecliptic Z           -1.56864068 +/-    0.0000
Ecliptic XDOT        -0.00397528 +/-    0.0000
Ecliptic YDOT        -0.00330720 +/-    0.0000
Ecliptic ZDOT         0.00172111 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   12.57561118 +/-    0.0000
Geocenter to KBO     11.60959849 +/-    0.0001
# Hcoef: 11.74

The following table shows the complete astrometric record for 13CV82. 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 (13CV82) followed by the observatory code and reference code for the source of the astrometry.

2011 01  23.50342  07 39 51.328  +13 34 43.66  22.3G 13CV82    F51  C~2kOl      
2012 01  15.54713  08 22 21.406  +14 25 09.35  22.8G 13CV82    F51  C~2kOl      
2012 01  15.55980  08 22 21.250  +14 25 10.64  22.6G 13CV82    F51  C~2kOl      
2013 01  08.613632 09 08 14.860  +14 50 12.47  21.2R 13CV82    F51  C~0oUA      
2013 01  10.543544 09 07 50.785  +14 53 01.26  21.2R 13CV82    F51  C~0oUA      
2013 01  10.557367 09 07 50.602  +14 53 02.40  21.4R 13CV82    F51  C~0oUA      
2013 01  10.571216 09 07 50.410  +14 53 03.56        13CV82    F51  C~0oUA      
2013 02  03.35615  09 02 13.904  +15 31 11.59  22.2w 13CV82    F51  C~0oUA      
2013 02  03.37082  09 02 13.693  +15 31 13.08  22.1w 13CV82    F51  C~0oUA      
2013 02  03.38547  09 02 13.469  +15 31 14.68  21.9w 13CV82    F51  C~0oUA      
2013 02  04.304286 09 01 59.805  +15 32 47.10  21.4R 13CV82    568  C~0oUA      
2013 02  04.305619 09 01 59.781  +15 32 47.21  21.5R 13CV82    568  C~0oUA      
2013 02  04.310999 09 01 59.707  +15 32 47.79  21.9R 13CV82    568  C~0oUA      
2013 02  06.317929 09 01 29.869  +15 36 09.71  21.6R 13CV82    568  C~0oUA      
2013 02  06.319180 09 01 29.854  +15 36 09.75  21.5R 13CV82    568  C~0oUA      
2013 02  06.320435 09 01 29.828  +15 36 09.91  21.5R 13CV82    568  C~0oUA      
2013 02  10.342805 09 00 30.401  +15 42 53.61  21.4R 13CV82    568  C~0oUA      
2013 02  10.344057 09 00 30.386  +15 42 53.67  21.6R 13CV82    568  C~0oUA      
2013 02  10.345311 09 00 30.368  +15 42 53.87  21.7R 13CV82    568  C~0oUA      
2013 02  11.93637  09 00 07.11   +15 45 32.6   21.3R 13CV82    J04  C~0oUA      
2013 02  11.94408  09 00 07.00   +15 45 33.3   21.5R 13CV82    J04  C~0oUA      
2013 02  11.95178  09 00 06.91   +15 45 34.2   21.5R 13CV82    J04  C~0oUA      
2013 03  03.25695  08 55 48.834  +16 16 04.66  23.0G 13CV82    F51  C~2kOl      
2013 03  03.27126  08 55 48.676  +16 16 05.67  22.4G 13CV82    F51  C~2kOl      
2013 03  03.28565  08 55 48.490  +16 16 06.98  22.1G 13CV82    F51  C~2kOl      
2013 03  03.30000  08 55 48.330  +16 16 08.23  22.4G 13CV82    F51  C~2kOl      
2014 03  05.33055  09 43 44.867  +16 30 39.34  22.2G 13CV82    F51  C~2kOl      
2015 01  15.66262  10 45 44.258  +14 16 28.10  20.9G 13CV82    F51  C~2kOl      
2015 01  20.43775  10 45 05.173  +14 25 34.47  22.3w 13CV82    F51  C~1j9Q      
2015 01  20.46454  10 45 04.934  +14 25 37.90  22.3w 13CV82    F51  C~1j9Q      
2015 01  20.47799  10 45 04.777  +14 25 39.48  22.5w 13CV82    F51  C~1j9Q      
2015 01  22.44994  10 44 46.746  +14 29 33.33  22.3w 13CV82    F51  C~1j9Q      
2015 01  22.46353  10 44 46.612  +14 29 35.25  22.2w 13CV82    F51  C~1j9Q      
2015 01  22.47718  10 44 46.473  +14 29 36.98  22.2w 13CV82    F51  C~1j9Q      
2015 01  22.49087  10 44 46.339  +14 29 38.63  22.2w 13CV82    F51  C~1j9Q      
2015 02  01.42890  10 43 00.345  +14 50 15.22  22.1G 13CV82    F51  C~2kOl      
2015 02  01.44114  10 43 00.188  +14 50 16.33  22.1G 13CV82    F51  C~2kOl      
2015 02  01.45348  10 43 00.056  +14 50 18.17  22.4G 13CV82    F51  C~2kOl      
2015 12  16.58214  11 36 18.286  +12 10 32.51  22.5G 13CV82    F51  C~2kOl      
2015 12  16.59415  11 36 18.379  +12 10 33.05  22.6G 13CV82    F51  C~2kOl      
2015 12  17.62305  11 36 26.170  +12 11 17.59  23.6G 13CV82    F51  C~2kOl      
2016 01  13.48761  11 37 37.205  +12 45 05.68  22.6G 13CV82    F51  C~2kOl      
2016 01  13.49927  11 37 37.182  +12 45 06.69  22.3G 13CV82    F51  C~2kOl      
2016 01  13.51102  11 37 37.158  +12 45 07.82  22.5G 13CV82    F51  C~2kOl      
2016 01  13.52270  11 37 37.118  +12 45 09.40  22.3G 13CV82    F51  C~2kOl      
2016 03  01.41635  11 30 22.573  +14 29 48.42  22.0G 13CV82    F51  C~2kOl      
2016 03  11.35321  11 28 01.688  +14 51 38.57  23.0G 13CV82    F51  C~2kOl      
2016 03  11.36547  11 28 01.459  +14 51 40.51  22.0G 13CV82    F51  C~2kOl      
2016 03  11.37782  11 28 01.270  +14 51 41.81  22.1G 13CV82    F51  C~2kOl      
2016 03  11.39016  11 28 01.103  +14 51 43.32  21.4G 13CV82    F51  C~2kOl      
2016 03  30.31616  11 23 38.317  +15 26 38.35  22.0G 13CV82    F51  C~2kOl      
2016 03  30.32974  11 23 38.139  +15 26 39.75  22.0G 13CV82    F51  C~2kOl      
2016 03  30.34330  11 23 37.954  +15 26 41.01  22.2G 13CV82    F51  C~2kOl      
2016 04  22.35435  11 19 32.370  +15 51 51.05  21.5G 13CV82    F51  C~2kOl      
2016 04  22.36716  11 19 32.241  +15 51 51.12  22.0G 13CV82    F51  C~2kOl      
2016 04  22.37981  11 19 32.167  +15 51 51.28  21.2G 13CV82    F51  C~2kOl      
2017 01  04.58067  12 28 01.033  +10 28 22.55  22.3G 13CV82    F51  C~2kOl      
2017 01  04.59182  12 28 01.104  +10 28 23.88  21.3G 13CV82    F51  C~2kOl      
2017 01  04.60295  12 28 01.162  +10 28 24.07  22.8G 13CV82    F51  C~2kOl      
2017 01  04.61409  12 28 01.193  +10 28 25.11  21.7G 13CV82    F51  C~2kOl      
2017 02  24.44822  12 25 23.602  +12 08 50.82  22.3G 13CV82    F51  C~2kOl      
2017 02  24.46075  12 25 23.468  +12 08 52.72  22.2G 13CV82    F51  C~2kOl      
2017 02  24.47331  12 25 23.327  +12 08 54.49  22.4G 13CV82    F51  C~2kOl      
2017 02  24.56884  12 25 22.264  +12 09 08.15  22.3G 13CV82    F51  C~2kOl      
2017 05  11.38275  12 10 06.572  +14 05 00.96  22.0G 13CV82    F51  C~2kOl      
2017 05  26.17408  12 09 05.44   +14 00 42.3   21.9R 13CV82    G37  C~2GiZ      
2017 05  26.24021  12 09 05.32   +14 00 39.8         13CV82    G37  C~2GiZ      
2018 04  12.34020  13 08 02.044  +11 05 45.48  21.6G 13CV82    F51  C~2kOl      
2018 04  12.35318  13 08 01.879  +11 05 46.87  22.0G 13CV82    F51  C~2kOl      
2018 04  12.37906  13 08 01.489  +11 05 49.45  21.7G 13CV82    F51  C~2kOl      

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    -0.25       0.00    -0.14
  2   0.9775      0.00    -0.18       0.00    -0.25
  3   0.9776      0.00     0.29       0.00     0.07
  4   1.9606      0.00    -0.32       0.00    -0.13
  5   1.9659      0.00     0.11       0.00    -0.04
  6   1.9659      0.00     0.06       0.00    -0.11
  7   1.9660      0.00    -0.12       0.00    -0.17
  8   2.0311      0.00    -0.07       0.00    -0.14
  9   2.0311      0.00     0.11       0.00    -0.13
 10   2.0312      0.00     0.09       0.00    -0.01
 11   2.0337      0.00    -0.08       0.00     0.05
 12   2.0337      0.00    -0.14       0.00     0.03
 13   2.0337      0.00    -0.03       0.00     0.06
 14   2.0392      0.00    -0.03       0.00     0.11
 15   2.0392      0.00     0.03       0.00     0.02
 16   2.0392      0.00    -0.08       0.00     0.05
 17   2.0502      0.00    -0.09       0.00     0.09
 18   2.0502      0.00    -0.03       0.00     0.02
 19   2.0502      0.00    -0.02       0.00     0.10
 20   2.0546      0.00     0.02       0.00     0.11
 21   2.0546      0.00     0.08       0.00     0.03
 22   2.0546      0.00     0.45       0.00     0.16
 23   2.1075      0.00    -0.05       0.00     0.19
 24   2.1075      0.00     0.16       0.00    -0.07
 25   2.1075      0.00    -0.04       0.00    -0.03
 26   2.1076      0.00     0.15       0.00    -0.06
 27   3.1125      0.00     0.04       0.00    -0.00
 28   3.9785      0.00    -0.05       0.00     0.32
 29   3.9916      0.00    -0.04       0.00    -0.08
 30   3.9917      0.00     0.06       0.00     0.18
 31   3.9917      0.00    -0.44       0.00     0.17
 32   3.9971      0.00     0.13       0.00    -0.09
 33   3.9972      0.00     0.11       0.00     0.20
 34   3.9972      0.00     0.02       0.00     0.28
 35   3.9972      0.00     0.02       0.00     0.28
 36   4.0244      0.00     0.10       0.00     0.27
 37   4.0245      0.00    -0.03       0.00    -0.20
 38   4.0245      0.00     0.23       0.00     0.06
 39   4.8955      0.00    -0.09       0.00    -0.05
 40   4.8955      0.00    -0.04       0.00    -0.02
 41   4.8983      0.00    -0.20       0.00     0.00
 42   4.9719      0.00     0.04       0.00    -0.04
 43   4.9719      0.00     0.12       0.00    -0.25
 44   4.9720      0.00     0.19       0.00    -0.36
 45   4.9720      0.00     0.02       0.00    -0.00
 46   5.1031      0.00    -0.16       0.00     0.02
 47   5.1303      0.00     0.55       0.00    -0.10
 48   5.1304      0.00    -0.19       0.00     0.29
 49   5.1304      0.00    -0.30       0.00     0.02
 50   5.1304      0.00    -0.09       0.00    -0.03
 51   5.1822      0.00    -0.13       0.00    -0.10
 52   5.1823      0.00    -0.09       0.00     0.03
 53   5.1823      0.00    -0.16       0.00     0.03
 54   5.2453      0.00     0.01       0.00     0.01
 55   5.2453      0.00    -0.35       0.00    -0.39
 56   5.2454      0.00     0.10       0.00    -0.69
 57   5.9496      0.00    -0.05       0.00    -0.01
 58   5.9496      0.00     0.12       0.00     0.51
 59   5.9496      0.00     0.09       0.00    -0.11
 60   5.9497      0.00    -0.33       0.00     0.11
 61   6.0888      0.00    -0.13       0.00    -0.02
 62   6.0889      0.00    -0.05       0.00     0.06
 63   6.0889      0.00    -0.07       0.00     0.02
 64   6.0892      0.00    -0.05       0.00    -0.12
 65   6.2967      0.00    -0.18       0.00    -0.43
 66   6.3372      0.00     0.15       0.00     0.16
 67   6.3374      0.00     0.37       0.00     0.15
 68   7.2165      0.00    -0.04       0.00    -0.05
 69   7.2166      0.00     0.29       0.00     0.09
 70   7.2166      0.00     0.04       0.00     0.17

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.

13CV82    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        17.119    17.119    17.119
ecceobj         0.372     0.372     0.372
incobj         18.534    18.534    18.534
qmin           10.465     9.567    10.313
qmax           26.613    26.054    25.589
amean          17.826    16.774    16.990
amin           16.931    14.182    15.778
amax           18.542    17.947    18.283
emean           0.405     0.395     0.372
emin            0.372     0.322     0.312
emax            0.435     0.452     0.400
imean          15.858    15.238    17.375
imin           15.254    13.998    15.495
imax           17.176    18.126    19.807
excite_mean     0.489     0.475     0.478
fracstop        0.002     0.011     0.004
cjmean          3.044     3.117     3.102

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        83.5      97.4     129.6
kozaiamp         36.7      78.8      88.2