Orbit Fit and Astrometric record for 14WY508

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: 14WY508   
# Created Tue Dec 12 02:38:10 2017
# Orbit generated from Bernstein formalism
# Fitting   38 observations of   38
# Arc:   4.19y
# First observation: 2011/01/30
#  Last observation: 2015/04/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.000781   0.051898   0.000427  -0.018373   0.037319   0.000000
# Chi-squared of fit:    10.53 DOF:   70 RMS:  0.09
# Min/Max residuals:    -0.21    0.26
# Exact a, adot, b, bdot, g, gdot:
  2.284186E-05  5.044748E-02 -7.683495E-06 -1.790331E-02  3.540997E-02 -5.614184E-03
# Covariance matrix:
  3.1641E-13 -3.1422E-13 -3.6456E-14  9.1740E-14 -1.5764E-13 -1.1301E-12
 -3.1422E-13  8.1618E-13  1.1438E-13 -2.8674E-13  5.5165E-13  3.5355E-12
 -3.6456E-14  1.1438E-13  2.4901E-13 -1.0139E-13  7.8893E-14  5.0707E-13
  9.1740E-14 -2.8674E-13 -1.0139E-13  1.2173E-13 -1.9563E-13 -1.2717E-12
 -1.5764E-13  5.5165E-13  7.8893E-14 -1.9563E-13  4.9182E-13  2.4180E-12
 -1.1301E-12  3.5355E-12  5.0707E-13 -1.2717E-12  2.4180E-12  1.5678E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    8.781345  141.395676    0.190412    0.148031   -0.958331  2455592.036796
# Heliocentric elements and errors
Epoch:              2455590.5000  =  2011/01/29
Mean Anomaly:          358.19483 +/-     0.001
Argument of Peri:      170.88254 +/-     0.010
Long of Asc Node:      343.59062 +/-     0.000
Inclination:            21.25034 +/-     0.000
Eccentricity:         0.70954904 +/-    0.0001
Semi-Major Axis:     99.11372408 +/-    0.0262
Time of Perihelion: 2457397.7377 +/-       1.2
Perihelion:          28.78767665 +/-    0.0107
Aphelion:           169.43977151 +/-    0.0455
Period (y)              986.7540 +/-      0.39
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -22.44587912 +/-    0.0004
Ecliptic Y           18.16669605 +/-    0.0003
Ecliptic Z            4.31110684 +/-    0.0001
Ecliptic XDOT        -0.00226467 +/-    0.0000
Ecliptic YDOT        -0.00317788 +/-    0.0000
Ecliptic ZDOT        -0.00143429 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.19643775 +/-    0.0004
Geocenter to KBO     28.24063214 +/-    0.0006
# Hcoef:  7.43

The following table shows the complete astrometric record for 14WY508. 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 (14WY508) followed by the observatory code and reference code for the source of the astrometry.

2011 01  30.53603  09 47 16.633  +22 39 54.76  22.0w 14WY508   F51  C~1vXp      
2011 01  30.55124  09 47 16.537  +22 39 55.28  22.0w 14WY508   F51  C~1vXp      
2011 01  30.56859  09 47 16.410  +22 39 55.70  22.2w 14WY508   F51  C~1vXp      
2011 01  30.58370  09 47 16.310  +22 39 56.16  21.9w 14WY508   F51  C~1vXp      
2012 02  15.34946  09 55 43.500  +20 48 28.07  21.9w 14WY508   F51  C~1vXp      
2012 02  15.36333  09 55 43.412  +20 48 28.45  21.8w 14WY508   F51  C~1vXp      
2012 02  15.37720  09 55 43.311  +20 48 28.69  21.9w 14WY508   F51  C~1vXp      
2012 02  15.39115  09 55 43.214  +20 48 29.05  21.8w 14WY508   F51  C~1vXp      
2014 05  23.26038  10 09 36.314  +16 45 38.74  22.2w 14WY508   F51  C~1vXp      
2014 05  23.27322  10 09 36.343  +16 45 38.52  22.3w 14WY508   F51  C~1vXp      
2014 05  23.28604  10 09 36.364  +16 45 38.07  22.5w 14WY508   F51  C~1vXp      
2014 05  23.29895  10 09 36.385  +16 45 37.65  22.3w 14WY508   F51  C~1vXp      
2014 11  29.57179  10 29 54.232  +14 17 02.64  22.3w 14WY508   F51  C~1vXp      
2014 11  29.58478  10 29 54.255  +14 17 02.79  22.4w 14WY508   F51  C~1vXp      
2014 11  29.59778  10 29 54.271  +14 17 02.71  22.3w 14WY508   F51  C~1vXp      
2015 01  20.43710  10 28 02.352  +14 25 24.64  21.8w 14WY508   F51  C~1vXp      
2015 01  20.45049  10 28 02.274  +14 25 25.03  22.2w 14WY508   F51  C~1vXp      
2015 01  20.46388  10 28 02.202  +14 25 25.30  22.0w 14WY508   F51  C~1vXp      
2015 01  20.47733  10 28 02.143  +14 25 25.57  22.0w 14WY508   F51  C~1vXp      
2015 01  22.44928  10 27 51.830  +14 26 12.93  22.0w 14WY508   F51  C~1vXp      
2015 01  22.46287  10 27 51.763  +14 26 13.19  22.0w 14WY508   F51  C~1vXp      
2015 01  22.47652  10 27 51.694  +14 26 13.46  22.1w 14WY508   F51  C~1vXp      
2015 01  22.49021  10 27 51.610  +14 26 13.94  22.1w 14WY508   F51  C~1vXp      
2015 02  01.42405  10 26 55.156  +14 30 27.29  21.4i 14WY508   F51  C~1vXp      
2015 02  01.44863  10 26 55.006  +14 30 28.04  21.6i 14WY508   F51  C~1vXp      
2015 02  01.46105  10 26 54.944  +14 30 28.38  21.5i 14WY508   F51  C~1vXp      
2015 02  17.38698  10 25 13.315  +14 37 38.90  21.9w 14WY508   F51  C~1vXp      
2015 02  17.39978  10 25 13.221  +14 37 39.18  22.0w 14WY508   F51  C~1vXp      
2015 02  17.41262  10 25 13.133  +14 37 39.58  21.7w 14WY508   F51  C~1vXp      
2015 02  17.42551  10 25 13.044  +14 37 39.86  21.9w 14WY508   F51  C~1vXp      
2015 03  14.31511  10 22 29.777  +14 47 37.40  22.1w 14WY508   F51  C~1vXp      
2015 03  14.32771  10 22 29.689  +14 47 37.86  22.2w 14WY508   F51  C~1vXp      
2015 03  14.34036  10 22 29.616  +14 47 37.95  22.3w 14WY508   F51  C~1vXp      
2015 03  14.35314  10 22 29.533  +14 47 38.20  22.1w 14WY508   F51  C~1vXp      
2015 04  10.24499  10 20 08.028  +14 53 09.65  22.2w 14WY508   F51  C~1vXp      
2015 04  10.25691  10 20 07.982  +14 53 09.75  22.0w 14WY508   F51  C~1vXp      
2015 04  10.26891  10 20 07.930  +14 53 09.74  22.0w 14WY508   F51  C~1vXp      
2015 04  10.28102  10 20 07.884  +14 53 09.69  22.1w 14WY508   F51  C~1vXp      

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    -0.06       0.00    -0.06
  2   0.0000     -1.43    -0.00       0.04     0.08
  3   0.0001     -3.22    -0.10      -0.15     0.01
  4   0.0001     -4.68    -0.08      -0.19     0.08
  5   1.0426   8935.27     0.04   -3857.91    -0.07
  6   1.0426   8933.98     0.15   -3857.99     0.02
  7   1.0427   8932.56     0.14   -3858.26    -0.09
  8   1.0427   8931.16     0.15   -3858.40    -0.06
  9   3.3093  25355.22    -0.18  -13293.06    -0.10
 10   3.3093  25355.69    -0.13  -13293.11     0.13
 11   3.3094  25356.15    -0.11  -13293.43     0.10
 12   3.3094  25356.59    -0.10  -13293.71     0.09
 13   3.8304  45676.04    -0.06  -14996.06    -0.21
 14   3.8304  45676.30    -0.06  -14995.79     0.08
 15   3.8304  45676.56    -0.05  -14995.77     0.11
 16   3.9724  43900.48    -0.00  -15160.94     0.03
 17   3.9724  43899.22    -0.14  -15161.02     0.05
 18   3.9724  43898.11    -0.14  -15161.17    -0.01
 19   3.9725  43897.17     0.04  -15161.26     0.01
 20   3.9779  43733.38    -0.14  -15175.20     0.02
 21   3.9779  43732.34    -0.02  -15175.33    -0.01
 22   3.9779  43731.26     0.08  -15175.47    -0.04
 23   3.9780  43729.89    -0.12  -15175.49     0.04
 24   4.0052  42836.75     0.09  -15256.74    -0.12
 25   4.0052  42834.35     0.07  -15256.88    -0.02
 26   4.0053  42833.35     0.26  -15256.91     0.07
 27   4.0489  41240.10     0.14  -15424.53     0.10
 28   4.0489  41238.67     0.06  -15424.80    -0.01
 29   4.0489  41237.29     0.02  -15424.91     0.04
 30   4.0490  41235.93     0.02  -15425.15    -0.04
 31   4.1171  38724.67     0.07  -15775.86    -0.16
 32   4.1172  38723.27    -0.13  -15775.92    -0.01
 33   4.1172  38722.22     0.04  -15776.24    -0.12
 34   4.1172  38720.97     0.01  -15776.47    -0.14
 35   4.1909  36627.84     0.01  -16249.31     0.05
 36   4.1909  36627.16     0.04  -16249.47     0.12
 37   4.1909  36626.45     0.04  -16249.77     0.05
 38   4.1910  36625.83     0.14  -16250.07    -0.01

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.

14WY508    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj       100.192   100.251   100.133
ecceobj         0.712     0.712     0.712
incobj         21.240    21.241    21.240
qmin           28.036    28.050    28.035
qmax          200.864   182.890   175.082
amean         103.724   100.281    93.149
amin           93.923    96.424    83.519
amax          115.033   105.889   101.938
emean           0.720     0.712     0.689
emin            0.691     0.698     0.654
emax            0.746     0.727     0.719
imean          22.213    22.144    22.671
imin           21.746    21.713    21.852
imax           22.772    22.486    23.641
excite_mean     0.813     0.806     0.790
fracstop        0.205     0.152     0.141
cjmean          2.674     2.673     2.672

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       184.4     185.7     185.3
kozaiamp         13.2      14.5      13.7