Orbit Fit and Astrometric record for 14WV508

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: 14WV508   
# Created Tue Dec 12 02:38:10 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   24
# Arc:   2.25y
# First observation: 2014/11/26
#  Last observation: 2017/02/27
Preliminary a, adot, b, bdot, g, gdot:
  -0.000097   0.125026  -0.000144   0.012398   0.062820   0.000000
# Chi-squared of fit:     8.28 DOF:   40 RMS:  0.11
# Min/Max residuals:    -0.37    0.22
# Exact a, adot, b, bdot, g, gdot:
  2.980358E-05  1.172273E-01  2.128254E-06  1.125269E-02  6.108465E-02 -2.706126E-02
# Covariance matrix:
  1.9065E-13  1.5350E-12 -4.4751E-14  2.0699E-13  5.0386E-13  6.7866E-12
  1.5350E-12  3.1696E-10 -7.3445E-12  4.2724E-11  6.8122E-11  1.4293E-09
 -4.4751E-14 -7.3445E-12  2.5123E-13 -1.0347E-12 -1.5921E-12 -3.3104E-11
  2.0699E-13  4.2724E-11 -1.0347E-12  5.8663E-12  9.1759E-12  1.9275E-10
  5.0386E-13  6.8122E-11 -1.5921E-12  9.1759E-12  1.4909E-11  3.0676E-10
  6.7866E-12  1.4293E-09 -3.3104E-11  1.9275E-10  3.0676E-10  6.4489E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   21.148085  109.322637    0.704740    0.249596   -0.644764  2456988.000088
# Heliocentric elements and errors
Epoch:              2456980.5000  =  2014/11/19
Mean Anomaly:          355.49332 +/-     0.011
Argument of Peri:      110.71983 +/-     0.084
Long of Asc Node:       34.27189 +/-     0.002
Inclination:            21.18358 +/-     0.000
Eccentricity:         0.71835519 +/-    0.0004
Semi-Major Axis:     55.36863411 +/-    0.0628
Time of Perihelion: 2458864.3595 +/-       3.4
Perihelion:          15.59428849 +/-    0.0292
Aphelion:            95.14297973 +/-    0.1103
Period (y)              412.0064 +/-      0.70
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -4.61892644 +/-    0.0003
Ecliptic Y           15.29462029 +/-    0.0009
Ecliptic Z            5.90622241 +/-    0.0004
Ecliptic XDOT        -0.00452793 +/-    0.0000
Ecliptic YDOT        -0.00298277 +/-    0.0000
Ecliptic ZDOT         0.00003290 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.03359487 +/-    0.0008
Geocenter to KBO     16.37072623 +/-    0.0010
# Hcoef:  9.34

The following table shows the complete astrometric record for 14WV508. 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 (14WV508) followed by the observatory code and reference code for the source of the astrometry.

2014 11  26.49931  07 39 42.697  +42 55 46.37  22.0w 14WV508   F51  C~1vXp      
2014 11  26.51147  07 39 42.586  +42 55 47.09  21.9w 14WV508   F51  C~1vXp      
2014 11  26.52360  07 39 42.522  +42 55 48.14  21.9w 14WV508   F51  C~1vXp      
2014 11  26.53572  07 39 42.422  +42 55 48.96  21.9w 14WV508   F51  C~1vXp      
2014 12  16.45920  07 36 33.191  +43 19 31.20  21.6w 14WV508   F51  C~1vXp      
2014 12  16.47217  07 36 33.040  +43 19 32.10  21.6w 14WV508   F51  C~1vXp      
2014 12  16.48521  07 36 32.878  +43 19 32.92  21.5w 14WV508   F51  C~1vXp      
2014 12  16.49832  07 36 32.721  +43 19 33.70  21.4w 14WV508   F51  C~1vXp      
2014 12  26.41021  07 34 28.745  +43 29 08.09  21.5w 14WV508   F51  C~1vXp      
2014 12  26.42195  07 34 28.595  +43 29 08.56  21.4w 14WV508   F51  C~1vXp      
2014 12  26.43370  07 34 28.427  +43 29 09.26  21.4w 14WV508   F51  C~1vXp      
2014 12  26.44545  07 34 28.279  +43 29 09.84  21.4w 14WV508   F51  C~1vXp      
2015 01  28.34175  07 26 49.926  +43 44 21.24  21.1i 14WV508   F51  C~1vXp      
2015 01  28.35302  07 26 49.778  +43 44 21.24  21.1i 14WV508   F51  C~1vXp      
2015 01  28.36433  07 26 49.623  +43 44 21.10  21.0i 14WV508   F51  C~1vXp      
2015 01  28.37567  07 26 49.465  +43 44 21.29  21.0i 14WV508   F51  C~1vXp      
2015 02  23.28582  07 22 01.563  +43 36 07.63  21.8r 14WV508   F51  C~1vXp      
2015 02  23.30065  07 22 01.432  +43 36 07.01  21.5r 14WV508   F51  C~1vXp      
2015 02  23.31526  07 22 01.313  +43 36 06.52  21.8r 14WV508   F51  C~1vXp      
2015 02  23.33009  07 22 01.193  +43 36 05.79  21.8r 14WV508   F51  C~1vXp      
2017 02  21.15532  08 39 10.75   +41 34 07.3   20.3R 14WV508   695  C~29EW      
2017 02  21.16929  08 39 10.59   +41 34 07.4         14WV508   695  C~29EW      
2017 02  27.10558  08 38 02.17   +41 32 53.7   21.1R 14WV508   H36  C~29EW      
2017 02  27.17390  08 38 01.49   +41 32 52.2   21.2R 14WV508   H36  C~29EW      

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     0.16
  2   0.0000     -1.33    -0.09       0.49    -0.11
  3   0.0001     -2.21     0.16       1.40     0.04
  4   0.0001     -3.44     0.05       2.00    -0.10
  5   0.0546  -2292.19    -0.06    1039.52    -0.04
  6   0.0547  -2293.97    -0.03    1040.12     0.04
  7   0.0547  -2295.85    -0.09    1040.63     0.01
  8   0.0548  -2297.67    -0.08    1041.11    -0.04
  9   0.0819  -3726.15    -0.06    1381.32     0.12
 10   0.0819  -3727.84     0.06    1381.51    -0.01
 11   0.0820  -3729.76    -0.06    1381.90     0.05
 12   0.0820  -3731.44     0.06    1382.21     0.03
 13   0.1721  -8795.07    -0.08    1521.67     0.07
 14   0.1721  -8796.66    -0.02    1521.44     0.06
 15   0.1721  -8798.30    -0.01    1521.06    -0.10
 16   0.1721  -8800.03    -0.07    1521.01     0.06
 17   0.2431 -11836.39     0.03     610.68    -0.01
 18   0.2431 -11837.73    -0.00     609.88    -0.07
 19   0.2432 -11838.95     0.05     609.23     0.00
 20   0.2432 -11840.15     0.15     608.34    -0.15
 21   2.2386  39941.15     0.16    5869.16    -0.19
 22   2.2387  39939.37     0.22    5868.61     0.03
 23   2.2549  39217.85    -0.37    5525.01     0.17
 24   2.2551  39210.95 (   0.66)   5520.87 (   0.23)

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.

14WV508    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        54.905    55.191    54.625
ecceobj         0.714     0.716     0.713
incobj         21.129    21.131    21.128
qmin           14.144    15.174    15.152
qmax           95.071    96.012    93.926
amean          51.688    53.984    53.425
amin           50.380    52.516    52.277
amax           55.327    55.835    54.794
emean           0.714     0.711     0.710
emin            0.698     0.703     0.704
emax            0.727     0.720     0.717
imean          17.964    20.578    20.544
imin           16.370    20.163    20.208
imax           20.818    20.875    20.803
excite_mean     0.778     0.793     0.792
fracstop        0.083     0.010     0.007
cjmean          2.321     2.313     2.312

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       163.3     117.1     115.0
kozaiamp         59.3       6.4       4.3