Orbit Fit and Astrometric record for 14WX508

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: 14WX508   
# Created Wed Sep 26 00:58:33 2018
# Orbit generated from Bernstein formalism
# Fitting   71 observations of   71
# Arc:   4.21y
# First observation: 2013/12/30
#  Last observation: 2018/03/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.022522   0.161417   0.005191  -0.027333   0.092678   0.000000
# Chi-squared of fit:    44.22 DOF:  136 RMS:  0.14
# Min/Max residuals:    -0.63    0.38
# Exact a, adot, b, bdot, g, gdot:
  2.888657E-05  1.339889E-01 -3.989944E-06 -2.227598E-02  7.478069E-02 -2.265368E-02
# Covariance matrix:
  2.1452E-13 -1.6801E-13 -2.2284E-14  2.3608E-14 -4.1275E-14 -1.8400E-13
 -1.6801E-13  1.8796E-13  2.8416E-14 -3.0719E-14  8.5953E-14  2.3512E-13
 -2.2284E-14  2.8416E-14  9.6780E-14 -3.4886E-14  1.3877E-14  3.7949E-14
  2.3608E-14 -3.0719E-14 -3.4886E-14  1.7279E-14 -1.5902E-14 -4.1039E-14
 -4.1275E-14  8.5953E-14  1.3877E-14 -1.5902E-14  9.0652E-14  1.1555E-13
 -1.8400E-13  2.3512E-13  3.7949E-14 -4.1039E-14  1.1555E-13  3.1402E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.099075  113.189477    0.246672   -0.117219   -0.942240  2456656.908288
# Heliocentric elements and errors
Epoch:              2456650.5000  =  2013/12/24
Mean Anomaly:          332.82037 +/-     0.001
Argument of Peri:      264.17857 +/-     0.001
Long of Asc Node:      257.57537 +/-     0.000
Inclination:            11.55800 +/-     0.000
Eccentricity:         0.29281202 +/-    0.0000
Semi-Major Axis:     18.67109409 +/-    0.0003
Time of Perihelion: 2458875.3159 +/-       0.1
Perihelion:          13.20397340 +/-    0.0003
Aphelion:            24.13821478 +/-    0.0005
Period (y)               80.6794 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -5.37381392 +/-    0.0000
Ecliptic Y           13.16986187 +/-    0.0000
Ecliptic Z           -1.65272520 +/-    0.0000
Ecliptic XDOT        -0.00415153 +/-    0.0000
Ecliptic YDOT        -0.00278318 +/-    0.0000
Ecliptic ZDOT        -0.00070667 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   14.31972899 +/-    0.0000
Geocenter to KBO     13.37243697 +/-    0.0001
# Hcoef: 11.04

The following table shows the complete astrometric record for 14WX508. 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 (14WX508) followed by the observatory code and reference code for the source of the astrometry.

2013 12  30.40751  07 35 11.473  +14 26 41.75  23.2G 14WX508   F51  C           
2014 01  11.38260  07 32 33.527  +14 29 21.85  22.9G 14WX508   F51  C           
2014 01  25.29133  07 29 29.834  +14 34 06.04  22.5G 14WX508   F51  C           
2014 11  29.51374  08 10 49.263  +11 49 06.89  22.4w 14WX508   F51  C~1vXp      
2014 11  29.52637  08 10 49.195  +11 49 06.72  22.6w 14WX508   F51  C~1vXp      
2014 11  29.53898  08 10 49.108  +11 49 06.42  22.4w 14WX508   F51  C~1vXp      
2015 01  21.33462  08 01 20.871  +11 53 05.56  22.2w 14WX508   F51  C~1vXp      
2015 01  21.34712  08 01 20.700  +11 53 06.03  22.4w 14WX508   F51  C~1vXp      
2015 01  21.35961  08 01 20.536  +11 53 06.26  22.0w 14WX508   F51  C~1vXp      
2015 01  21.37212  08 01 20.365  +11 53 06.81  21.9w 14WX508   F51  C~1vXp      
2015 01  24.51751  08 00 38.477  +11 54 40.16  22.3G 14WX508   F51  C           
2015 01  26.49501  08 00 12.329  +11 55 41.40  22.2w 14WX508   F51  C~1vXp      
2015 01  26.52247  08 00 11.964  +11 55 42.16  22.1w 14WX508   F51  C~1vXp      
2015 01  26.53630  08 00 11.767  +11 55 42.73  22.4w 14WX508   F51  C~1vXp      
2015 01  30.36040  07 59 21.779  +11 57 48.28  22.7G 14WX508   F51  C           
2015 02  18.26280  07 55 36.643  +12 09 22.10  20.2G 14WX508   F51  C           
2015 02  19.24033  07 55 26.448  +12 09 59.52  22.3w 14WX508   F51  C~1vXp      
2015 02  19.26439  07 55 26.185  +12 10 00.44  22.3w 14WX508   F51  C~1vXp      
2015 02  19.27653  07 55 26.067  +12 10 01.10  22.7w 14WX508   F51  C~1vXp      
2015 03  19.30023  07 52 04.594  +12 26 59.31  22.4w 14WX508   F51  C~1vXp      
2015 03  19.31273  07 52 04.549  +12 26 59.88  22.1w 14WX508   F51  C~1vXp      
2015 03  19.32516  07 52 04.505  +12 27 00.09  22.2w 14WX508   F51  C~1vXp      
2015 03  19.33762  07 52 04.465  +12 27 00.47  22.3w 14WX508   F51  C~1vXp      
2015 10  15.58940  08 39 18.493  +09 38 07.68  22.8G 14WX508   F51  C           
2016 01  04.57100  08 36 35.019  +08 45 57.08  22.0G 14WX508   F51  C           
2016 01  07.57662  08 35 59.459  +08 46 43.46  22.2G 14WX508   F51  C           
2016 01  09.44503  08 35 36.836  +08 47 18.20  22.3G 14WX508   F51  C           
2016 01  09.45915  08 35 36.655  +08 47 18.47  22.1G 14WX508   F51  C           
2016 01  09.47331  08 35 36.468  +08 47 18.67  22.4G 14WX508   F51  C           
2016 02  01.33593  08 30 39.677  +08 59 15.74  22.5G 14WX508   F51  C           
2016 02  01.34669  08 30 39.537  +08 59 15.84  22.5G 14WX508   F51  C           
2016 02  01.35750  08 30 39.399  +08 59 16.37  22.4G 14WX508   F51  C           
2016 02  01.36829  08 30 39.270  +08 59 16.71  22.0G 14WX508   F51  C           
2016 02  14.31320  08 27 54.309  +09 08 59.10  22.0G 14WX508   F51  C           
2016 02  26.36647  08 25 38.202  +09 18 53.37  21.8G 14WX508   F51  C           
2016 02  28.26243  08 25 19.006  +09 20 28.10  22.4G 14WX508   F51  C           
2016 02  28.27604  08 25 18.869  +09 20 28.82  22.1G 14WX508   F51  C           
2016 02  28.28959  08 25 18.732  +09 20 29.37  22.3G 14WX508   F51  C           
2016 02  28.30309  08 25 18.598  +09 20 30.09  22.4G 14WX508   F51  C           
2016 03  07.26575  08 24 05.886  +09 27 04.62  23.0G 14WX508   F51  C           
2016 03  25.38243  08 22 16.810  +09 40 46.33  22.5G 14WX508   F51  C           
2016 11  14.62997  09 12 06.763  +05 55 02.92  23.5G 14WX508   F51  C           
2017 01  02.50807  09 08 48.744  +05 28 30.02  22.2G 14WX508   F51  C           
2017 02  02.40049  09 02 36.271  +05 42 46.67  21.8G 14WX508   F51  C           
2017 02  02.41400  09 02 36.111  +05 42 47.09  21.8G 14WX508   F51  C           
2017 02  02.42764  09 02 35.921  +05 42 47.98  22.2G 14WX508   F51  C           
2017 02  02.44143  09 02 35.717  +05 42 48.50  21.9G 14WX508   F51  C           
2017 02  27.35204  08 57 25.320  +06 05 42.11  22.0G 14WX508   F51  C           
2017 02  27.36333  08 57 25.182  +06 05 42.91  22.4G 14WX508   F51  C           
2017 02  27.37465  08 57 25.039  +06 05 43.63  21.9G 14WX508   F51  C           
2017 02  27.38598  08 57 24.917  +06 05 44.27  22.0G 14WX508   F51  C           
2017 03  16.24674  08 54 42.798  +06 22 45.16  22.4G 14WX508   F51  C           
2017 03  16.26068  08 54 42.685  +06 22 46.05  22.3G 14WX508   F51  C           
2017 03  16.28853  08 54 42.467  +06 22 47.77  22.7G 14WX508   F51  C           
2017 05  02.15333  08 53 26.85   +06 55 23.0   22.8R 14WX508   G37  C~2VW7      
2017 05  02.19787  08 53 27.07   +06 55 23.4         14WX508   G37  C~2VW7      
2017 11  22.59787  09 43 08.675  +02 27 51.72  22.6G 14WX508   F51  C           
2017 11  22.59916  09 43 08.689  +02 27 51.42  22.7G 14WX508   F51  C           
2017 11  22.60975  09 43 08.708  +02 27 50.58  22.4G 14WX508   F51  C           
2017 11  22.61104  09 43 08.708  +02 27 50.74  22.6G 14WX508   F51  C           
2017 11  22.62167  09 43 08.735  +02 27 49.86  22.9G 14WX508   F51  C           
2017 11  22.62296  09 43 08.734  +02 27 49.83  22.4G 14WX508   F51  C           
2017 11  22.63364  09 43 08.785  +02 27 48.91  22.6G 14WX508   F51  C           
2017 11  22.63494  09 43 08.787  +02 27 48.95  22.5G 14WX508   F51  C           
2017 12  20.50169  09 42 36.948  +02 03 36.34  22.3R 14WX508   G37  C~2VW7      
2017 12  20.52604  09 42 36.829  +02 03 35.49        14WX508   G37  C~2VW7      
2018 02  11.44487  09 33 36.196  +02 18 55.99  22.2G 14WX508   F51  C           
2018 02  11.45695  09 33 36.035  +02 18 56.60  22.2G 14WX508   F51  C           
2018 02  11.46901  09 33 35.876  +02 18 57.29  22.2G 14WX508   F51  C           
2018 03  17.35893  09 27 00.699  +02 56 47.14  23.2G 14WX508   F51  C           
2018 03  17.37161  09 27 00.574  +02 56 48.10  22.4G 14WX508   F51  C           

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    -0.11       0.00    -0.15
  2   0.0328  -2290.15    -0.10    -209.79    -0.10
  3   0.0709  -4969.80     0.38    -348.65    -0.06
  4   0.9147  32687.67    -0.15   -3717.78    -0.06
  5   0.9148  32686.70    -0.06   -3718.14     0.09
  6   0.9148  32685.48    -0.23   -3718.69     0.05
  7   1.0593  24294.91    -0.01   -5087.02    -0.02
  8   1.0594  24292.32    -0.05   -5087.03     0.09
  9   1.0594  24289.88     0.06   -5087.25    -0.03
 10   1.0595  24287.28     0.00   -5087.18     0.15
 11   1.0681  23657.30     0.10   -5109.74     0.28
 12   1.0735  23263.72     0.19   -5120.68    -0.09
 13   1.0736  23258.24     0.26   -5120.92    -0.18
 14   1.0736  23255.26     0.06   -5120.90    -0.07
 15   1.0841  22501.76    -0.63   -5132.96     0.28
 16   1.1358  19092.50    -0.13   -5053.09     0.10
 17   1.1385  18937.33     0.05   -5043.26    -0.14
 18   1.1386  18933.34    -0.08   -5043.05    -0.18
 19   1.1386  18931.50     0.04   -5042.72     0.03
 20   1.2153  15820.45    -0.04   -4568.34    -0.09
 21   1.2153  15819.70    -0.02   -4567.90     0.10
 22   1.2154  15819.02     0.07   -4567.81    -0.07
 23   1.2154  15818.37     0.19   -4567.53    -0.06
 24   1.7911  60343.17    -0.05   -6293.11    -0.02
 25   2.0128  58540.19     0.13  -10016.38    -0.07
 26   2.0210  57973.37    -0.08  -10083.45    -0.29
 27   2.0261  57611.93     0.17  -10120.63     0.04
 28   2.0262  57609.04     0.10  -10120.93     0.02
 29   2.0262  57606.07    -0.03  -10121.33    -0.09
 30   2.0888  52832.80    -0.26  -10333.01     0.32
 31   2.0888  52830.61    -0.12  -10333.35    -0.02
 32   2.0888  52828.36    -0.03  -10333.24     0.08
 33   2.0889  52826.29     0.24  -10333.30     0.02
 34   2.1243  50155.07     0.08  -10257.31     0.07
 35   2.1573  47938.56     0.04  -10076.39     0.17
 36   2.1625  47624.48    -0.10  -10039.66     0.06
 37   2.1625  47622.23    -0.08  -10039.35     0.10
 38   2.1626  47620.02    -0.03  -10039.21    -0.02
 39   2.1626  47617.81     0.02  -10038.90     0.03
 40   2.1844  46422.44     0.10   -9863.36    -0.17
 41   2.2340  44585.58    -0.08   -9367.89     0.09
 42   2.8754  96573.07    -0.03  -13399.41     0.03
 43   3.0092  93573.91    -0.05  -15835.03     0.04
 44   3.0938  86883.93    -0.06  -16225.17     0.01
 45   3.0938  86881.08     0.34  -16225.27    -0.14
 46   3.0938  86877.58     0.14  -16224.98     0.11
 47   3.0939  86873.94    -0.15  -16225.14    -0.09
 48   3.1621  81232.27     0.18  -15833.42    -0.07
 49   3.1621  81229.73    -0.00  -15833.05     0.02
 50   3.1621  81227.13    -0.24  -15832.77     0.01
 51   3.1622  81224.91    -0.10  -15832.51    -0.01
 52   3.2083  78239.76     0.11  -15306.68    -0.04
 53   3.2084  78237.64     0.10  -15306.12     0.03
 54   3.2084  78233.55     0.21  -15305.05     0.13
 55   3.3367  76455.03    -0.09  -13511.21     0.09
 56   3.3369  76458.56     0.09  -13510.05    -0.27
 57   3.8965 136402.13    -0.10  -20320.22     0.11
 58   3.8965 136402.54     0.20  -20320.52    -0.09
 59   3.8965 136403.26     0.03  -20321.43    -0.19
 60   3.8965 136403.19    -0.13  -20321.24     0.10
 61   3.8965 136404.10    -0.12  -20322.18    -0.01
 62   3.8966 136404.09    -0.23  -20322.22     0.05
 63   3.8966 136405.51     0.30  -20323.10    -0.01
 64   3.8966 136405.53     0.22  -20323.05     0.14
 65   3.9729 136304.91    -0.06  -22162.78     0.02
 66   3.9729 136302.76     0.20  -22164.24    -0.13
 67   4.1178 124966.44    -0.04  -23115.58     0.05
 68   4.1179 124963.02    -0.04  -23115.46    -0.04
 69   4.1179 124959.62    -0.03  -23115.25    -0.02
 70   4.2107 116452.70    -0.15  -21958.60    -0.05
 71   4.2107 116449.98    -0.26  -21957.97     0.00

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.

14WX508    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        18.651    18.652    18.650
ecceobj         0.287     0.287     0.287
incobj         11.551    11.551    11.551
qmin           13.065    13.123    13.127
qmax           24.113    24.042    24.141
amean          18.204    18.442    18.602
amin           17.867    18.143    18.458
amax           18.726    18.748    18.728
emean           0.268     0.272     0.285
emin            0.246     0.239     0.279
emax            0.291     0.291     0.291
imean          13.092    12.798    13.061
imin           12.531    12.289    12.937
imax           13.792    13.406    13.203
excite_mean     0.351     0.351     0.364
fracstop        0.007     0.007     0.001
cjmean          3.117     3.105     3.089

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       192.9     190.9     279.0
kozaiamp        178.4     178.7      14.7