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 Mon Oct 23 01:38:31 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:   2.42y
# First observation: 2014/11/29
#  Last observation: 2017/05/02
Preliminary a, adot, b, bdot, g, gdot:
  -0.000675   0.139112  -0.000086  -0.019958   0.075030   0.000000
# Chi-squared of fit:     6.00 DOF:   32 RMS:  0.10
# Min/Max residuals:    -0.16    0.25
# Exact a, adot, b, bdot, g, gdot:
  2.941944E-05  1.370822E-01 -4.037551E-06 -1.971326E-02  7.435953E-02 -1.430935E-02
# Covariance matrix:
  3.8884E-13  2.6344E-12  1.0413E-13 -5.0546E-13  9.0729E-13  1.0276E-11
  2.6344E-12  1.6443E-10  5.8473E-12 -3.1288E-11  3.9778E-11  6.6373E-10
  1.0413E-13  5.8473E-12  3.0824E-13 -1.1757E-12  1.4243E-12  2.3603E-11
 -5.0546E-13 -3.1288E-11 -1.1757E-12  6.1103E-12 -7.5672E-12 -1.2643E-10
  9.0729E-13  3.9778E-11  1.4243E-12 -7.5672E-12  9.8958E-12  1.6007E-10
  1.0276E-11  6.6373E-10  2.3603E-11 -1.2643E-10  1.6007E-10  2.6831E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.030819  122.282986    0.812645   -0.077986   -0.553945  2456991.014518
# Heliocentric elements and errors
Epoch:              2456990.5000  =  2014/11/29
Mean Anomaly:          336.90760 +/-     0.039
Argument of Peri:      264.33714 +/-     0.083
Long of Asc Node:      257.59079 +/-     0.001
Inclination:            11.56188 +/-     0.000
Eccentricity:         0.29346505 +/-    0.0002
Semi-Major Axis:     18.67630984 +/-    0.0014
Time of Perihelion: 2458881.5439 +/-       3.2
Perihelion:          13.19546570 +/-    0.0040
Aphelion:            24.15715398 +/-    0.0042
Period (y)               80.7132 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.72704124 +/-    0.0003
Ecliptic Y           12.16563816 +/-    0.0005
Ecliptic Z           -1.87887561 +/-    0.0001
Ecliptic XDOT        -0.00393844 +/-    0.0000
Ecliptic YDOT        -0.00322755 +/-    0.0000
Ecliptic ZDOT        -0.00064500 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   14.02804367 +/-    0.0004
Geocenter to KBO     13.44817608 +/-    0.0006
# Hcoef: 10.77

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.

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  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 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      
2017 05  02.15333  08 53 26.852  +06 55 22.95  22.8R 14WX508   G37              
2017 05  02.19787  08 53 27.072  +06 55 23.42        14WX508   G37              

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    -0.03
  2   0.0000     -0.94     0.02      -0.38     0.12
  3   0.0001     -2.12    -0.14      -0.95     0.08
  4   0.1446  -8208.08    -0.02   -1544.21     0.01
  5   0.1446  -8210.64    -0.06   -1544.28     0.11
  6   0.1447  -8213.04     0.05   -1544.55    -0.01
  7   0.1447  -8215.62    -0.01   -1544.54     0.17
  8   0.1587  -9226.34     0.18   -1601.51    -0.06
  9   0.1588  -9231.75     0.25   -1601.88    -0.15
 10   0.1589  -9234.71     0.05   -1601.92    -0.05
 11   0.2238 -13520.24    -0.00   -1624.86    -0.11
 12   0.2238 -13524.22    -0.13   -1624.74    -0.16
 13   0.2239 -13526.06    -0.01   -1624.45     0.06
 14   0.3006 -16640.02    -0.11   -1222.80    -0.06
 15   0.3006 -16640.78    -0.10   -1222.37     0.13
 16   0.3006 -16641.46    -0.01   -1222.30    -0.04
 17   0.3007 -16642.12     0.11   -1222.04    -0.03
 18   2.4220  41472.21    -0.08   -8430.07     0.14
 19   2.4221  41475.39     0.08   -8428.79    -0.12

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    18.700    18.603
ecceobj         0.287     0.288     0.287
incobj         11.551    11.552    11.550
qmin           13.124    13.144    13.071
qmax           24.042    24.077    24.016
amean          18.519    18.579    18.480
amin           18.384    18.402    18.202
amax           18.657    18.700    18.988
emean           0.284     0.285     0.266
emin            0.276     0.279     0.228
emax            0.291     0.292     0.292
imean          13.222    13.074    12.741
imin           12.934    12.919    12.175
imax           13.563    13.438    13.151
excite_mean     0.365     0.364     0.346
fracstop        0.001     0.002     0.007
cjmean          3.092     3.089     3.106

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       279.0     280.6     191.8
kozaiamp         15.6      18.1     178.5