Orbit Fit and Astrometric record for 13VE2

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: 13VE2     
# Created Tue Oct 24 01:38:19 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   73 observations of   73
# Arc:   5.36y
# First observation: 2010/09/05
#  Last observation: 2016/01/14
# Chi-squared of fit:   202.64 DOF:  140 RMS:  0.29
# Min/Max residuals:    -0.99    1.07
# Exact a, adot, b, bdot, g, gdot:
  4.029759E-05  4.055684E-01 -2.618095E-06 -4.010827E-02  1.611477E-01 -6.007442E-02
# Covariance matrix:
  1.1465E-10  1.1182E-06 -1.6235E-11 -1.6612E-07 -1.4634E-12 -6.0593E-07
  1.1182E-06  1.1338E-02 -1.5850E-07 -1.6840E-03 -1.4475E-08 -6.1430E-03
 -1.6235E-11 -1.5850E-07  2.4926E-12  2.3489E-08  2.0752E-13  8.5882E-08
 -1.6612E-07 -1.6840E-03  2.3489E-08  2.5154E-04  2.1503E-09  9.1255E-04
 -1.4634E-12 -1.4475E-08  2.0752E-13  2.1503E-09  1.8787E-14  7.8436E-09
 -6.0593E-07 -6.1430E-03  8.5882E-08  9.1255E-04  7.8436E-09  3.3289E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.227585  -26.110875   -0.150156   -0.090482   -0.988457  2455444.800166
# Heliocentric elements and errors
Epoch:              2455444.5000  =  2010/09/05
Mean Anomaly:          334.49241 +/-     0.001
Argument of Peri:      260.37936 +/-     0.000
Long of Asc Node:      115.52352 +/-     0.000
Inclination:             7.04836 +/-     0.000
Eccentricity:         0.23039037 +/-    0.0010
Semi-Major Axis:      8.93438506 +/-    0.0000
Time of Perihelion: 2456135.6340 +/-       0.0
Perihelion:           6.87598878 +/-    0.0087
Aphelion:            10.99278134 +/-    0.0087
Period (y)               26.7058 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            6.51068123 +/-    0.0000
Ecliptic Y           -3.02297951 +/-    0.0000
Ecliptic Z           -0.56538095 +/-    0.0000
Ecliptic XDOT         0.00206471 +/-    0.0000
Ecliptic YDOT         0.00666826 +/-    0.0000
Ecliptic ZDOT        -0.00058562 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    7.20051934 +/-    0.0000
Geocenter to KBO      6.20555568 +/-    0.0000
# Hcoef: 13.00

The following table shows the complete astrometric record for 13VE2. 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 (13VE2) followed by the observatory code and reference code for the source of the astrometry.

2010 09  05.29940  22 30 59.47   -14 56 50.4   21.2V 13VE2     G96  C~1waH      
2010 09  05.30685  22 30 59.32   -14 56 50.8   22.0V 13VE2     G96  C~1waH      
2010 09  05.31432  22 30 59.14   -14 56 52.3   22.0V 13VE2     G96  C~1waH      
2010 09  05.32173  22 30 59.00   -14 56 52.8   21.4V 13VE2     G96  C~1waH      
2010 09  29.29757  22 23 31.529  -15 40 59.35  21.9w 13VE2     F51  C~1vX5      
2010 09  29.31077  22 23 31.321  -15 40 59.93  22.1w 13VE2     F51  C~1vX5      
2010 09  29.32463  22 23 31.097  -15 41 01.56  21.7w 13VE2     F51  C~1vX5      
2010 09  29.33783  22 23 30.884  -15 41 02.25  21.6w 13VE2     F51  C~1vX5      
2011 08  27.49961  00 08 18.040  -06 47 19.54  21.6w 13VE2     F51  C~1vX5      
2011 08  27.51356  00 08 17.805  -06 47 21.60  21.4w 13VE2     F51  C~1vX5      
2011 08  27.52752  00 08 17.569  -06 47 23.78  21.4w 13VE2     F51  C~1vX5      
2011 08  27.54152  00 08 17.334  -06 47 25.81  21.3w 13VE2     F51  C~1vX5      
2012 10  07.50177  01 30 57.578  +00 41 56.44  21.6r 13VE2     F51  C~1vX5      
2012 10  07.51336  01 30 57.318  +00 41 54.67  21.7r 13VE2     F51  C~1vX5      
2012 10  07.54046  01 30 56.739  +00 41 50.90  21.6i 13VE2     F51  C~1vX5      
2012 10  15.35262  01 28 09.442  +00 24 25.80  21.1w 13VE2     F51  C~1vX5      
2012 10  15.36710  01 28 09.131  +00 24 24.02  21.2w 13VE2     F51  C~1vX5      
2012 10  15.38169  01 28 08.804  +00 24 22.10  21.1w 13VE2     F51  C~1vX5      
2012 10  15.39632  01 28 08.484  +00 24 20.11  21.0w 13VE2     F51  C~1vX5      
2012 11  05.29008  01 20 56.423  -00 12 50.60  21.4w 13VE2     F51  C~1vX5      
2012 11  05.30522  01 20 56.130  -00 12 51.84  21.3w 13VE2     F51  C~1vX5      
2012 11  05.32030  01 20 55.841  -00 12 53.06  21.5w 13VE2     F51  C~1vX5      
2012 11  05.33543  01 20 55.550  -00 12 54.25  21.4w 13VE2     F51  C~1vX5      
2013 11  01.33505  02 57 42.46   +08 45 39.3   20.8V 13VE2     G96  C~0wdm      
2013 11  01.34284  02 57 42.27   +08 45 38.5   20.9V 13VE2     G96  C~0wdm      
2013 11  01.35063  02 57 42.11   +08 45 37.4   20.3V 13VE2     G96  C~0wdm      
2013 11  01.35843  02 57 41.95   +08 45 37.0   21.7V 13VE2     G96  C~0wdm      
2013 11  02.24968  02 57 21.84   +08 44 11.3   20.8R 13VE2     926  C~0wdm      
2013 11  02.26623  02 57 21.48   +08 44 09.5   21.1R 13VE2     926  C~0wdm      
2013 11  02.28280  02 57 21.11   +08 44 07.7   21.0R 13VE2     926  C~0wdm      
2013 11  02.37876  02 57 18.89   +08 43 59.2   21.3V 13VE2     G96  C~0wdm      
2013 11  02.38383  02 57 18.74   +08 43 58.5   21.6V 13VE2     G96  C~0wdm      
2013 11  02.38891  02 57 18.66   +08 43 58.0   21.4V 13VE2     G96  C~0wdm      
2013 11  02.39399  02 57 18.49   +08 43 57.6   21.2V 13VE2     G96  C~0wdm      
2013 11  04.35639  02 56 34.08   +08 40 53.0   20.8V 13VE2     G96  C~0wdm      
2013 11  04.36118  02 56 33.97   +08 40 52.2   20.7V 13VE2     G96  C~0wdm      
2013 11  04.36602  02 56 33.89   +08 40 52.2   20.1V 13VE2     G96  C~0wdm      
2013 11  04.37080  02 56 33.74   +08 40 51.5   21.7V 13VE2     G96  C~0wdm      
2013 11  04.56825  02 56 29.29   +08 40 33.6   20.3R 13VE2     E10  C~0wdm      
2013 11  04.57405  02 56 29.16   +08 40 33.2   20.2R 13VE2     E10  C~0wdm      
2014 11  19.36065  04 23 19.170  +15 14 29.09  21.7w 13VE2     F51  C~1vX5      
2014 11  19.37352  04 23 18.880  +15 14 28.62  21.7w 13VE2     F51  C~1vX5      
2014 11  19.38632  04 23 18.568  +15 14 28.02  21.6w 13VE2     F51  C~1vX5      
2014 11  19.39919  04 23 18.276  +15 14 27.38  21.7w 13VE2     F51  C~1vX5      
2014 11  21.36793  04 22 32.577  +15 12 56.52  21.5w 13VE2     F51  C~1vX5      
2014 11  21.37998  04 22 32.282  +15 12 55.96  21.4w 13VE2     F51  C~1vX5      
2014 11  21.39204  04 22 31.993  +15 12 55.39  21.4w 13VE2     F51  C~1vX5      
2014 11  21.40415  04 22 31.719  +15 12 54.85  21.3w 13VE2     F51  C~1vX5      
2014 11  23.36296  04 21 45.817  +15 11 26.99  21.6w 13VE2     F51  C@0616      
2014 11  23.37501  04 21 45.525  +15 11 26.52  21.7w 13VE2     F51  C~1vX5      
2014 11  23.38702  04 21 45.241  +15 11 26.15  21.4w 13VE2     F51  C@0616      
2014 11  23.39908  04 21 44.952  +15 11 25.47  21.5w 13VE2     F51  C@0616      
2014 11  29.29450  04 19 25.45   +15 07 20.1   21.2R 13VE2     291  C~1Dvm      
2014 11  29.32383  04 19 24.82   +15 07 18.6   21.3R 13VE2     291  C~1Dvm      
2015 01  12.23240  04 05 35.036  +15 00 41.08  22.3w 13VE2     F51  C~1vX5      
2015 01  12.24440  04 05 34.902  +15 00 41.44  22.0w 13VE2     F51  C~1vX5      
2015 01  12.25635  04 05 34.776  +15 00 41.53  21.9w 13VE2     F51  C~1vX5      
2015 01  12.26832  04 05 34.646  +15 00 41.94  22.1w 13VE2     F51  C~1vX5      
2015 01  14.22042  04 05 15.355  +15 01 39.24  21.9w 13VE2     F51  C~1vX5      
2015 01  14.23245  04 05 15.233  +15 01 39.72  22.0w 13VE2     F51  C~1vX5      
2015 01  14.24397  04 05 15.121  +15 01 39.97  22.0w 13VE2     F51  C~1vX5      
2015 01  14.25558  04 05 15.010  +15 01 40.36  21.9w 13VE2     F51  C~1vX5      
2015 01  17.30448  04 04 48.882  +15 03 23.57  22.0w 13VE2     F51  C~1vX5      
2015 01  17.31827  04 04 48.773  +15 03 24.16  21.9w 13VE2     F51  C~1vX5      
2015 01  17.33212  04 04 48.657  +15 03 24.71  21.7w 13VE2     F51  C~1vX5      
2015 12  18.32486  05 38 27.92   +19 14 37.0   21.9V 13VE2     G96  C~1vX5      
2015 12  18.32945  05 38 27.83   +19 14 37.8   21.6V 13VE2     G96  C~1vX5      
2015 12  18.33407  05 38 27.68   +19 14 37.6   22.6V 13VE2     G96  C~1vX5      
2015 12  18.33871  05 38 27.60   +19 14 37.9   22.0V 13VE2     G96  C~1vX5      
2016 01  14.40956  05 28 38.797  +19 21 52.13  21.9w 13VE2     F51  C~1vX5      
2016 01  14.42345  05 28 38.552  +19 21 52.26  21.8w 13VE2     F51  C~1vX5      
2016 01  14.43737  05 28 38.293  +19 21 52.77  21.9w 13VE2     F51  C~1vX5      
2016 01  14.45125  05 28 38.031  +19 21 52.86  22.0w 13VE2     F51  C~1vX5      

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    -0.77       0.00     0.92
  2   0.0000      0.00     0.38       0.00     0.42
  3   0.0000      0.00     0.08       0.00    -0.07
  4   0.0001      0.00     0.35       0.00     0.43
  5   0.0657      0.00     0.13       0.00    -0.13
  6   0.0657      0.00     0.16       0.00     0.35
  7   0.0658      0.00     0.11       0.00    -0.16
  8   0.0658      0.00     0.07       0.00     0.21
  9   0.9752      0.00     0.15       0.00     0.34
 10   0.9753      0.00     0.14       0.00     0.41
 11   0.9753      0.00     0.11       0.00     0.37
 12   0.9753      0.00     0.12       0.00     0.48
 13   2.0895      0.00     0.29       0.00     0.04
 14   2.0896      0.00     0.15       0.00    -0.13
 15   2.0896      0.00     0.24       0.00    -0.16
 16   2.1110      0.00     0.05       0.00     0.03
 17   2.1111      0.00     0.19       0.00     0.12
 18   2.1111      0.00     0.14       0.00     0.08
 19   2.1111      0.00     0.21       0.00    -0.03
 20   2.1684      0.00     0.34       0.00     0.00
 21   2.1684      0.00     0.33       0.00    -0.03
 22   2.1684      0.00     0.36       0.00    -0.05
 23   2.1685      0.00     0.37       0.00    -0.03
 24   3.1568      0.00     0.65       0.00     0.54
 25   3.1569      0.00     0.49       0.00     0.49
 26   3.1569      0.00     0.78       0.00     0.15
 27   3.1569      0.00     1.07       0.00     0.50
 28   3.1593      0.00    -0.09       0.00     0.09
 29   3.1594      0.00     0.24       0.00    -0.14
 30   3.1594      0.00     0.43       0.00    -0.37
 31   3.1597      0.00     0.38       0.00     0.31
 32   3.1597      0.00    -0.12       0.00     0.09
 33   3.1597      0.00     0.44       0.00     0.08
 34   3.1597      0.00    -0.36       0.00     0.16
 35   3.1651      0.00     0.21       0.00     0.25
 36   3.1651      0.00     0.23       0.00    -0.11
 37   3.1651      0.00     0.72       0.00     0.35
 38   3.1652      0.00     0.13       0.00     0.09
 39   3.1657      0.00     0.06       0.00    -0.99
 40   3.1657      0.00     0.14       0.00    -0.85
 41   4.2055      0.00     0.08       0.00    -0.14
 42   4.2055      0.00     0.28       0.00    -0.02
 43   4.2056      0.00     0.14       0.00    -0.03
 44   4.2056      0.00     0.31       0.00    -0.08
 45   4.2110      0.00     0.38       0.00    -0.03
 46   4.2110      0.00     0.27       0.00    -0.05
 47   4.2111      0.00     0.25       0.00    -0.08
 48   4.2111      0.00     0.47       0.00    -0.08
 49   4.2165      0.00     0.20       0.00    -0.08
 50   4.2165      0.00     0.16       0.00    -0.03
 51   4.2165      0.00     0.23       0.00     0.13
 52   4.2166      0.00     0.25       0.00    -0.03
 53   4.2327      0.00    -0.83       0.00     0.82
 54   4.2328      0.00     0.36       0.00     0.47
 55   4.3530      0.00     0.19       0.00     0.12
 56   4.3530      0.00     0.14       0.00     0.14
 57   4.3531      0.00     0.21       0.00    -0.10
 58   4.3531      0.00     0.22       0.00    -0.03
 59   4.3584      0.00     0.10       0.00     0.01
 60   4.3585      0.00     0.05       0.00     0.10
 61   4.3585      0.00     0.08       0.00    -0.01
 62   4.3585      0.00     0.14       0.00     0.01
 63   4.3669      0.00     0.21       0.00    -0.26
 64   4.3669      0.00     0.28       0.00    -0.17
 65   4.3670      0.00     0.26       0.00    -0.12
 66   5.2841      0.00     0.29       0.00    -0.24
 67   5.2841      0.00     0.61       0.00     0.52
 68   5.2841      0.00     0.03       0.00     0.28
 69   5.2842      0.00     0.52       0.00     0.54
 70   5.3583      0.00     0.04       0.00    -0.01
 71   5.3583      0.00     0.24       0.00    -0.19
 72   5.3584      0.00     0.24       0.00     0.01
 73   5.3584      0.00     0.17       0.00    -0.21

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.

13VE2    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj         8.841     8.841     8.841
ecceobj         0.225     0.225     0.225
incobj          7.061     7.061     7.061
qmin            6.852     6.852     6.852
qmax           10.830    10.830    10.830
amean           8.841     8.841     8.841
amin            8.841     8.841     8.841
amax            8.841     8.841     8.841
emean           0.225     0.225     0.225
emin            0.225     0.225     0.225
emax            0.225     0.225     0.225
imean           5.501     5.501     5.501
imin            5.501     5.501     5.501
imax            5.501     5.501     5.501
excite_mean     0.245     0.245     0.245
fracstop        0.000     0.000     0.000
cjmean          4.456     4.456     4.456

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       260.6     260.6     260.6
kozaiamp          0.0       0.0       0.0