Orbit Fit and Astrometric record for 13WV107

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: 13WV107   
# Created Sat Oct 21 01:38:19 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   87 observations of   87
# Arc:   8.17y
# First observation: 2008/10/26
#  Last observation: 2016/12/27
# Chi-squared of fit:   352.30 DOF:  168 RMS:  0.36
# Min/Max residuals:    -1.53    2.16
# Exact a, adot, b, bdot, g, gdot:
  2.467013E-05  1.117319E-01 -1.127584E-06 -1.937941E-02  7.225023E-02 -3.269296E-02
# Covariance matrix:
  2.4216E-13 -1.0802E-13 -5.0248E-15  1.3223E-14 -8.1654E-15 -5.1899E-14
 -1.0802E-13  1.6314E-13  1.0561E-14 -2.7534E-14  3.9990E-14  1.0911E-13
 -5.0248E-15  1.0561E-14  2.0885E-13 -3.7989E-14  7.8852E-16  7.6709E-15
  1.3223E-14 -2.7534E-14 -3.7989E-14  1.2676E-14 -3.7796E-16 -2.0233E-14
 -8.1654E-15  3.9990E-14  7.8852E-16 -3.7796E-16  1.5175E-13  8.3290E-15
 -5.1899E-14  1.0911E-13  7.6709E-15 -2.0233E-14  8.3290E-15  7.9224E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   23.232601   30.710530   -0.048588    0.392123   -0.913356  2454765.906205
# Heliocentric elements and errors
Epoch:              2454766.5000  =  2008/10/27
Mean Anomaly:          284.66948 +/-     0.186
Argument of Peri:      220.58874 +/-     0.000
Long of Asc Node:      274.59280 +/-     0.000
Inclination:            23.94901 +/-     0.000
Eccentricity:         0.26857496 +/-    0.0001
Semi-Major Axis:     14.70841035 +/-    0.0000
Time of Perihelion: 2459077.8719 +/-      10.6
Perihelion:          10.75809964 +/-    0.0014
Aphelion:            18.65872106 +/-    0.0014
Period (y)               56.4101 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           11.76612517 +/-    0.0000
Ecliptic Y            7.04032443 +/-    0.0000
Ecliptic Z            5.45968626 +/-    0.0000
Ecliptic XDOT        -0.00288604 +/-    0.0000
Ecliptic YDOT         0.00320913 +/-    0.0000
Ecliptic ZDOT        -0.00116362 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   14.75868725 +/-    0.0000
Geocenter to KBO     13.84091452 +/-    0.0001
# Hcoef: 10.14

The following table shows the complete astrometric record for 13WV107. 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 (13WV107) followed by the observatory code and reference code for the source of the astrometry.

2008 10  26.405451 01 16 25.22   +33 16 12.4   20.8V 13WV107   645  C~1lwf      
2008 10  26.406285 01 16 25.21   +33 16 12.3         13WV107   645  C~1lwf      
2008 10  26.408773 01 16 25.29   +33 16 12.1         13WV107   645  C~1lwf      
2008 10  31.405961 01 15 18.31   +33 07 58.1   21.6V 13WV107   645  C~1Shc      
2008 10  31.406790 01 15 18.30   +33 07 58.1   21.4V 13WV107   645  C~1Shc      
2008 10  31.409278 01 15 18.27   +33 07 57.9   22.0V 13WV107   645  C~1Shc      
2011 11  30.41559  02 51 59.368  +35 11 28.77  21.1w 13WV107   F51  C~1vX6      
2011 11  30.42917  02 51 59.172  +35 11 27.26  21.2w 13WV107   F51  C~1vX6      
2011 11  30.44270  02 51 58.972  +35 11 25.87  21.2w 13WV107   F51  C~1vX6      
2011 11  30.45625  02 51 58.770  +35 11 24.30  21.1w 13WV107   F51  C~1vX6      
2013 11  25.31175  04 16 36.300  +33 48 36.80  20.8r 13WV107   F51  C@0614      
2013 11  25.32323  04 16 36.092  +33 48 36.05  20.9r 13WV107   F51  C@0614      
2013 11  25.33571  04 16 35.871  +33 48 35.26  21.1g 13WV107   F51  C@0614      
2013 11  25.34781  04 16 35.659  +33 48 34.44  21.3g 13WV107   F51  C@0614      
2013 11  25.94270  04 16 25.21   +33 47 53.7   20.7R 13WV107   033  C~0y6X      
2013 11  25.95168  04 16 25.10   +33 47 53.7   20.7R 13WV107   033  C~0y6X      
2013 11  25.96851  04 16 24.76   +33 47 51.8   20.7R 13WV107   033  C~0y6X      
2013 11  25.97749  04 16 24.66   +33 47 51.8   20.7R 13WV107   033  C~0y6X      
2013 11  26.37414  04 16 17.66   +33 47 25.2   20.3R 13WV107   291  C~0y6X      
2013 11  26.42394  04 16 16.79   +33 47 21.3   20.7R 13WV107   291  C~0y6X      
2013 11  26.584640 04 16 13.981  +33 47 10.18  20.6R 13WV107   568  C~0y6X      
2013 11  26.585247 04 16 13.965  +33 47 10.15  20.7R 13WV107   568  C~0y6X      
2013 11  26.585854 04 16 13.953  +33 47 10.19  20.6R 13WV107   568  C~0y6X      
2013 11  26.593287 04 16 13.810  +33 47 09.52  20.9R 13WV107   568  C~0y6X      
2013 11  26.593891 04 16 13.804  +33 47 09.48  20.6R 13WV107   568  C~0y6X      
2013 11  26.594495 04 16 13.797  +33 47 09.36  20.8R 13WV107   568  C~0y6X      
2013 11  26.599557 04 16 13.716  +33 47 09.14  20.8R 13WV107   568  C~0y6X      
2013 11  26.600170 04 16 13.699  +33 47 09.08  20.7R 13WV107   568  C~0y6X      
2013 11  26.600772 04 16 13.701  +33 47 09.13  20.7R 13WV107   568  C~0y6X      
2013 11  26.606476 04 16 13.594  +33 47 08.61  20.5R 13WV107   568  C~0y6X      
2013 11  28.04591  04 15 48.47   +33 45 27.5   20.8R 13WV107   204  C~0y6X      
2013 11  28.06704  04 15 48.11   +33 45 26.4         13WV107   204  C~0y6X      
2013 12  02.459580 04 14 31.441  +33 40 02.34  20.3R 13WV107   568  C~0y6X      
2013 12  02.462225 04 14 31.393  +33 40 02.13  20.3R 13WV107   568  C~0y6X      
2013 12  02.464869 04 14 31.350  +33 40 01.93  20.3R 13WV107   568  C~0y6X      
2013 12  02.467512 04 14 31.302  +33 40 01.74  20.3R 13WV107   568  C~0y6X      
2013 12  02.470158 04 14 31.253  +33 40 01.51  20.3R 13WV107   568  C~0y6X      
2013 12  06.09565  04 13 28.66   +33 35 15.6   20.7R 13WV107   104  C~0y6X      
2013 12  06.11211  04 13 28.37   +33 35 13.9         13WV107   104  C~0y6X      
2013 12  26.28013  04 08 09.54   +33 04 47.4   21.5R 13WV107   926  C~0yOH      
2013 12  26.30594  04 08 09.14   +33 04 44.7   21.4R 13WV107   926  C~0yOH      
2013 12  26.33671  04 08 08.75   +33 04 42.2   21.2R 13WV107   926  C~0yOH      
2014 01  30.18947  04 03 09.94   +32 07 34.9   21.2R 13WV107   926  C~107b      
2014 01  30.29123  04 03 09.66   +32 07 25.8   21.2R 13WV107   926  C~107b      
2014 10  21.39400  05 09 00.95   +31 47 38.1   20.8R 13WV107   H36  C~1Fkb      
2014 10  21.42880  05 09 00.65   +31 47 37.7   20.9R 13WV107   H36  C~1Fkb      
2014 10  21.46363  05 09 00.28   +31 47 37.4   20.9R 13WV107   H36  C~1Fkb      
2014 10  22.38483  05 08 52.25   +31 47 28.1   20.8R 13WV107   G37  C~1Fkb      
2014 10  22.47687  05 08 51.40   +31 47 27.1         13WV107   G37  C~1Fkb      
2014 11  27.35559  05 00 32.514  +31 29 19.88  20.8w 13WV107   F51  C~1vX6      
2014 11  27.36943  05 00 32.275  +31 29 19.22  20.7w 13WV107   F51  C~1vX6      
2014 11  27.38325  05 00 32.025  +31 29 18.56  20.8w 13WV107   F51  C~1vX6      
2014 11  27.39708  05 00 31.781  +31 29 17.85  20.7w 13WV107   F51  C~1vX6      
2014 12  01.32327  04 59 22.898  +31 25 48.82  20.4i 13WV107   F51  C~1vX6      
2014 12  01.33525  04 59 22.680  +31 25 48.26  20.2i 13WV107   F51  C~1vX6      
2014 12  01.34722  04 59 22.470  +31 25 47.50  20.2i 13WV107   F51  C~1vX6      
2014 12  01.35916  04 59 22.261  +31 25 46.86  20.4i 13WV107   F51  C~1vX6      
2014 12  27.25534  04 51 51.14   +30 56 24.0   20.2V 13WV107   G96  C~1Fkb      
2014 12  27.26143  04 51 51.03   +30 56 23.4   20.5V 13WV107   G96  C~1Fkb      
2014 12  27.26844  04 51 50.988  +30 56 23.09  20.5i 13WV107   F51  C~1vX6      
2014 12  27.27056  04 51 50.88   +30 56 22.7   20.3V 13WV107   G96  C~1Fkb      
2014 12  27.27665  04 51 50.77   +30 56 22.2   20.1V 13WV107   G96  C~1Fkb      
2014 12  27.27969  04 51 50.797  +30 56 22.28  20.6i 13WV107   F51  C~1vX6      
2014 12  27.29095  04 51 50.622  +30 56 21.31  20.4i 13WV107   F51  C~1vX6      
2014 12  27.30221  04 51 50.432  +30 56 20.45  20.4i 13WV107   F51  C~1vX6      
2014 12  29.41092  04 51 16.841  +30 53 33.35  20.4i 13WV107   F51  C~1vX6      
2014 12  29.42244  04 51 16.658  +30 53 32.54  20.4i 13WV107   F51  C~1vX6      
2014 12  29.43392  04 51 16.470  +30 53 31.50  20.4i 13WV107   F51  C~1vX6      
2014 12  29.44546  04 51 16.290  +30 53 30.56  20.4i 13WV107   F51  C~1vX6      
2015 01  23.34181  04 46 04.179  +30 18 49.64  20.8w 13WV107   F51  C~1vX6      
2015 01  23.35438  04 46 04.068  +30 18 48.52  20.9w 13WV107   F51  C~1vX6      
2015 01  23.36691  04 46 03.952  +30 18 47.48  20.9w 13WV107   F51  C~1vX6      
2015 01  23.37946  04 46 03.840  +30 18 46.39  20.9w 13WV107   F51  C~1vX6      
2015 01  25.32650  04 45 47.550  +30 16 02.46  20.5i 13WV107   F51  C~1vX6      
2015 01  25.33905  04 45 47.425  +30 16 01.52  20.6i 13WV107   F51  C~1vX6      
2015 01  25.35258  04 45 47.315  +30 16 00.45  20.5i 13WV107   F51  C~1vX6      
2015 01  25.36501  04 45 47.211  +30 15 59.17  20.6i 13WV107   F51  C~1vX6      
2015 12  19.18432  05 39 08.55   +27 47 20.3   20.5V 13WV107   G96  C~1gmV      
2015 12  19.18891  05 39 08.48   +27 47 20.2   20.5V 13WV107   G96  C~1gmV      
2015 12  19.19348  05 39 08.38   +27 47 19.9   20.5V 13WV107   G96  C~1gmV      
2015 12  19.19808  05 39 08.31   +27 47 19.8   20.5V 13WV107   G96  C~1gmV      
2015 12  19.20324  05 39 08.22   +27 47 19.0         13WV107   G96  C~1gmV      
2015 12  19.20948  05 39 08.09   +27 47 18.9   20.4V 13WV107   G96  C~1gmV      
2015 12  19.21572  05 39 07.95   +27 47 18.8   19.8V 13WV107   G96  C~1gmV      
2015 12  19.22196  05 39 07.85   +27 47 18.6   20.1V 13WV107   G96  C~1gmV      
2016 12  27.67061  06 21 10.59   +23 12 36.8   19.9R 13WV107   D29  C~24TA      
2016 12  27.68475  06 21 10.28   +23 12 36.6   19.9R 13WV107   D29  C~24TA      

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    -0.76       0.00    -1.53
  2   0.0000      0.00     0.44       0.00    -0.55
  3   0.0000      0.00     2.16       0.00    -0.51
  4   0.0137      0.00    -0.48       0.00     0.11
  5   0.0137      0.00    -0.47       0.00     0.20
  6   0.0137      0.00    -0.43       0.00     0.26
  7   3.0938      0.00    -0.05       0.00     0.26
  8   3.0938      0.00     0.01       0.00     0.23
  9   3.0939      0.00    -0.01       0.00     0.32
 10   3.0939      0.00    -0.05       0.00     0.23
 11   5.0812      0.00     0.30       0.00     0.11
 12   5.0812      0.00     0.23       0.00     0.12
 13   5.0813      0.00     0.24       0.00     0.14
 14   5.0813      0.00     0.28       0.00     0.12
 15   5.0829      0.00    -0.33       0.00    -0.08
 16   5.0829      0.00     0.40       0.00     0.53
 17   5.0830      0.00    -0.23       0.00    -0.23
 18   5.0830      0.00     0.66       0.00     0.39
 19   5.0841      0.00    -0.14       0.00     0.66
 20   5.0842      0.00     0.06       0.00     0.24
 21   5.0847      0.00     0.23       0.00     0.10
 22   5.0847      0.00     0.16       0.00     0.11
 23   5.0847      0.00     0.14       0.00     0.20
 24   5.0847      0.00    -0.04       0.00     0.06
 25   5.0847      0.00     0.03       0.00     0.06
 26   5.0847      0.00     0.09       0.00    -0.02
 27   5.0847      0.00     0.21       0.00     0.12
 28   5.0847      0.00     0.12       0.00     0.10
 29   5.0847      0.00     0.31       0.00     0.20
 30   5.0847      0.00     0.21       0.00     0.08
 31   5.0887      0.00     0.28       0.00    -0.26
 32   5.0887      0.00     0.49       0.00     0.16
 33   5.1008      0.00     0.17       0.00     0.04
 34   5.1008      0.00     0.15       0.00     0.03
 35   5.1008      0.00     0.21       0.00     0.04
 36   5.1008      0.00     0.19       0.00     0.05
 37   5.1008      0.00     0.16       0.00     0.03
 38   5.1107      0.00     1.74       0.00     0.66
 39   5.1108      0.00     1.66       0.00     0.32
 40   5.1660      0.00    -0.00       0.00     0.00
 41   5.1661      0.00    -0.51       0.00    -0.15
 42   5.1661      0.00     0.17       0.00     0.40
 43   5.2616      0.00     0.01       0.00    -0.11
 44   5.2618      0.00    -0.15       0.00     0.28
 45   5.9849      0.00     0.50       0.00    -0.05
 46   5.9850      0.00     0.64       0.00    -0.10
 47   5.9851      0.00    -0.27       0.00    -0.04
 48   5.9876      0.00    -0.02       0.00     0.12
 49   5.9879      0.00     0.01       0.00     0.11
 50   6.0861      0.00     0.28       0.00    -0.05
 51   6.0861      0.00     0.37       0.00    -0.03
 52   6.0862      0.00     0.29       0.00     0.00
 53   6.0862      0.00     0.30       0.00    -0.02
 54   6.0970      0.00     0.25       0.00    -0.12
 55   6.0970      0.00     0.21       0.00    -0.03
 56   6.0970      0.00     0.29       0.00    -0.15
 57   6.0971      0.00     0.37       0.00    -0.14
 58   6.1680      0.00    -0.08       0.00     0.12
 59   6.1680      0.00    -0.22       0.00     0.00
 60   6.1680      0.00     0.24       0.00     0.16
 61   6.1680      0.00    -0.22       0.00     0.02
 62   6.1680      0.00    -0.37       0.00     0.00
 63   6.1680      0.00     0.14       0.00     0.21
 64   6.1681      0.00     0.29       0.00     0.12
 65   6.1681      0.00     0.22       0.00     0.13
 66   6.1739      0.00     0.15       0.00     0.06
 67   6.1739      0.00     0.18       0.00     0.17
 68   6.1739      0.00     0.12       0.00     0.06
 69   6.1740      0.00     0.20       0.00     0.05
 70   6.2421      0.00     0.10       0.00     0.05
 71   6.2422      0.00     0.15       0.00    -0.00
 72   6.2422      0.00     0.11       0.00     0.03
 73   6.2422      0.00     0.13       0.00     0.01
 74   6.2476      0.00     0.22       0.00     0.02
 75   6.2476      0.00    -0.08       0.00     0.14
 76   6.2476      0.00    -0.03       0.00     0.22
 77   6.2477      0.00    -0.04       0.00    -0.00
 78   7.1452      0.00     0.28       0.00    -0.15
 79   7.1452      0.00     0.49       0.00    -0.02
 80   7.1452      0.00     0.25       0.00    -0.09
 81   7.1452      0.00     0.46       0.00     0.05
 82   7.1452      0.00     0.53       0.00    -0.49
 83   7.1453      0.00     0.29       0.00    -0.28
 84   7.1453      0.00    -0.09       0.00    -0.06
 85   7.1453      0.00     0.12       0.00     0.05
 86   8.1705      0.00     0.15       0.00    -0.28
 87   8.1705      0.00    -0.61       0.00     0.03

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.

13WV107    quality flag:2

Type:       CENTAURR  CENTAURR  CENTAURS

axisobj        14.763    14.763    14.764
ecceobj         0.267     0.267     0.267
incobj         23.937    23.937    23.937
qmin            9.671    10.217     9.857
qmax           19.599    19.651    19.587
amean          14.178    14.764    14.438
amin           13.107    14.587    14.091
amax           15.003    15.537    14.975
emean           0.200     0.282     0.126
emin            0.113     0.241     0.068
emax            0.316     0.303     0.326
imean          28.069    25.351    27.075
imin           24.464    24.777    24.876
imax           29.934    26.526    28.729
excite_mean     0.514     0.513     0.474
fracstop        0.425     0.004     1.000
cjmean          3.309     3.258     3.308

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       181.3     276.0     180.2
kozaiamp        180.0      66.4     180.0