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 Fri May 25 01:38:22 2018
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   26
# Arc:   3.07y
# First observation: 2014/11/26
#  Last observation: 2017/12/20
Preliminary a, adot, b, bdot, g, gdot:
   0.002305   0.130979  -0.000528   0.012991   0.068318   0.000000
# Chi-squared of fit:     9.32 DOF:   44 RMS:  0.11
# Min/Max residuals:    -0.37    0.23
# Exact a, adot, b, bdot, g, gdot:
  2.981548E-05  1.172304E-01  2.006149E-06  1.125336E-02  6.108531E-02 -2.704685E-02
# Covariance matrix:
  1.8441E-13  1.3077E-13 -1.2369E-14  1.8064E-14  2.0323E-13  4.4716E-13
  1.3077E-13  9.5322E-13 -3.6633E-14  1.0703E-13  4.7157E-13  2.6527E-12
 -1.2369E-14 -3.6633E-14  7.9802E-14 -3.7270E-14 -2.7885E-14 -1.0487E-13
  1.8064E-14  1.0703E-13 -3.7270E-14  6.0353E-14  5.3749E-14  3.1410E-13
  2.0323E-13  4.7157E-13 -2.7885E-14  5.3749E-14  4.2644E-13  1.3313E-12
  4.4716E-13  2.6527E-12 -1.0487E-13  3.1410E-13  1.3313E-12  7.7847E-12
#      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:          355.49345 +/-     0.001
Argument of Peri:      110.70450 +/-     0.003
Long of Asc Node:       34.27258 +/-     0.000
Inclination:            21.18364 +/-     0.000
Eccentricity:         0.71828067 +/-    0.0000
Semi-Major Axis:     55.35761273 +/-    0.0090
Time of Perihelion: 2458863.7437 +/-       0.1
Perihelion:          15.59530942 +/-    0.0036
Aphelion:            95.11991605 +/-    0.0157
Period (y)              411.8833 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -4.61887156 +/-    0.0000
Ecliptic Y           15.29446319 +/-    0.0002
Ecliptic Z            5.90615589 +/-    0.0001
Ecliptic XDOT        -0.00452821 +/-    0.0000
Ecliptic YDOT        -0.00298223 +/-    0.0000
Ecliptic ZDOT         0.00003316 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.03341587 +/-    0.0001
Geocenter to KBO     16.37054704 +/-    0.0002
# 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      
2017 12  20.49959  09 29 44.394  +38 09 16.20  21.1R 14WV508   G37  C~2Uxq      
2017 12  20.52150  09 29 44.260  +38 09 18.08        14WV508   G37  C~2Uxq      

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     0.19
  2   0.0000     -1.33    -0.09       0.49    -0.08
  3   0.0001     -2.21     0.15       1.40     0.07
  4   0.0001     -3.44     0.05       2.00    -0.08
  5   0.0546  -2292.19    -0.06    1039.52    -0.03
  6   0.0547  -2293.97    -0.03    1040.12     0.04
  7   0.0547  -2295.85    -0.09    1040.63     0.02
  8   0.0548  -2297.67    -0.08    1041.11    -0.03
  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     0.07    1382.21     0.03
 13   0.1721  -8795.07    -0.08    1521.67     0.06
 14   0.1721  -8796.66    -0.01    1521.44     0.05
 15   0.1721  -8798.30    -0.00    1521.06    -0.11
 16   0.1721  -8800.03    -0.07    1521.01     0.05
 17   0.2431 -11836.39     0.02     610.68    -0.02
 18   0.2431 -11837.73    -0.01     609.88    -0.08
 19   0.2432 -11838.95     0.04     609.23    -0.01
 20   0.2432 -11840.15     0.14     608.34    -0.16
 21   2.2386  39941.15     0.17    5869.16    -0.29
 22   2.2387  39939.37     0.23    5868.61    -0.07
 23   2.2549  39217.85    -0.37    5525.01     0.06
 24   2.2551  39210.95 (   0.66)   5520.87 (   0.11)
 25   3.0664  80018.73    -0.03    9512.67     0.11
 26   3.0665  80016.11     0.01    9513.62     0.11

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        54.894    54.908    54.880
ecceobj         0.714     0.714     0.714
incobj         21.129    21.130    21.129
qmin           15.273    14.530    15.215
qmax           95.045    94.954    94.457
amean          53.930    51.770    54.137
amin           53.194    50.330    53.282
amax           55.328    55.268    55.012
emean           0.711     0.709     0.713
emin            0.703     0.696     0.704
emax            0.718     0.725     0.719
imean          20.601    18.508    20.340
imin           20.193    17.107    19.875
imax           20.819    20.816    20.810
excite_mean     0.794     0.777     0.793
fracstop        0.008     0.080     0.008
cjmean          2.312     2.329     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       116.1     167.7     115.0
kozaiamp          5.5      60.5       4.5