Orbit Fit and Astrometric record for 14WW508

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: 14WW508   
# Created Sat Oct 21 01:38:30 2017
# Orbit generated from Bernstein formalism
# Fitting   29 observations of   31
# Arc:   4.20y
# First observation: 2010/11/08
#  Last observation: 2015/01/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.024525   0.194960   0.002852  -0.020959   0.089459   0.000000
# Chi-squared of fit:    10.07 DOF:   52 RMS:  0.10
# Min/Max residuals:    -0.28    0.37
# Exact a, adot, b, bdot, g, gdot:
  3.179760E-05  1.562675E-01 -3.124433E-06 -1.638284E-02  7.725060E-02 -2.908999E-02
# Covariance matrix:
  3.5903E-13 -2.2398E-13 -1.2260E-14  1.7049E-14 -6.4652E-14 -1.6844E-13
 -2.2398E-13  2.5922E-13  1.7616E-14 -2.5984E-14  3.2424E-14  2.7619E-13
 -1.2260E-14  1.7616E-14  2.4295E-13 -6.6133E-14  4.3832E-15  1.9595E-14
  1.7049E-14 -2.5984E-14 -6.6133E-14  2.2800E-14 -2.3157E-15 -3.0442E-14
 -6.4652E-14  3.2424E-14  4.3832E-15 -2.3157E-15  1.7672E-13 -2.6561E-14
 -1.6844E-13  2.7619E-13  1.9595E-14 -3.0442E-14 -2.6561E-14  3.4258E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.068196   44.729430   -0.022280   -0.138722   -0.978635  2455508.979646
# Heliocentric elements and errors
Epoch:              2455500.5000  =  2010/10/31
Mean Anomaly:          351.94650 +/-     0.001
Argument of Peri:      262.40298 +/-     0.001
Long of Asc Node:      172.98553 +/-     0.000
Inclination:             9.50284 +/-     0.000
Eccentricity:         0.53452071 +/-    0.0000
Semi-Major Axis:     28.50440831 +/-    0.0015
Time of Perihelion: 2456744.0083 +/-       0.0
Perihelion:          13.26821177 +/-    0.0009
Aphelion:            43.74060485 +/-    0.0024
Period (y)              152.1865 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            9.79594769 +/-    0.0000
Ecliptic Y            9.73059481 +/-    0.0001
Ecliptic Z           -1.81689662 +/-    0.0000
Ecliptic XDOT        -0.00468097 +/-    0.0000
Ecliptic YDOT         0.00316522 +/-    0.0000
Ecliptic ZDOT        -0.00043018 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   13.92645611 +/-    0.0000
Geocenter to KBO     12.94488366 +/-    0.0001
# Hcoef: 10.53

The following table shows the complete astrometric record for 14WW508. 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 (14WW508) followed by the observatory code and reference code for the source of the astrometry.

2010 11  08.47888  02 58 38.573  +08 32 02.86  21.8w 14WW508   F51  C~1vXp      
2010 11  08.49164  02 58 38.411  +08 32 02.06  21.7w 14WW508   F51  C~1vXp      
2010 11  08.50584  02 58 38.245  +08 32 01.12  21.8w 14WW508   F51  C~1vXp      
2010 11  08.51853  02 58 38.079  +08 32 00.42  21.7w 14WW508   F51  C~1vXp      
2012 10  21.55414  04 17 28.096  +11 44 45.62  21.9w 14WW508   F51  C~1vXp      
2012 10  21.57018  04 17 27.954  +11 44 44.87  22.0w 14WW508   F51  C~1vXp      
2012 10  21.58623  04 17 27.802  +11 44 43.98  22.2w 14WW508   F51  C~1vXp      
2012 10  21.60235  04 17 27.663  +11 44 43.21  21.9w 14WW508   F51  C~1vXp      
2012 11  07.37800  04 14 34.522  +11 29 40.65  21.9w 14WW508   F51  C~1vXp      
2012 11  07.39317  04 14 34.339  +11 29 39.86  22.0w 14WW508   F51  C~1vXp      
2012 11  07.40835  04 14 34.168  +11 29 38.84  21.7w 14WW508   F51  C~1vXp      
2012 11  07.42344  04 14 33.986  +11 29 38.24  21.5w 14WW508   F51  C~1vXp      
2013 11  27.35852  04 50 40.222  +12 19 49.68  21.9w 14WW508   F51  C~1vXp      
2013 11  27.37376  04 50 40.016  +12 19 49.22  21.7w 14WW508   F51  C~1vXp      
2013 11  27.38898  04 50 39.815  +12 19 48.75  21.7w 14WW508   F51  C~1vXp      
2013 11  27.40430  04 50 39.612  +12 19 48.19  21.9w 14WW508   F51  C~1vXp      
2014 11  26.39528  05 31 34.002  +13 02 42.69  21.6w 14WW508   F51  C~1vXp      
2014 11  26.40832  05 31 33.831  +13 02 42.26  22.0w 14WW508   F51  C~1vXp      
2014 11  26.42132  05 31 33.673  +13 02 41.95  22.0w 14WW508   F51  C~1vXp      
2014 11  26.43427  05 31 33.522  +13 02 41.72  21.9w 14WW508   F51  C~1vXp      
2014 11  28.54794  05 31 07.544  +13 01 49.94  21.7w 14WW508   F51  C~1vXp      
2014 11  28.56211  05 31 07.381  +13 01 49.68  21.6w 14WW508   F51  C~1vXp      
2014 11  28.57626  05 31 07.194  +13 01 49.32  21.6w 14WW508   F51  C~1vXp      
2015 01  17.24259  05 20 55.113  +12 59 39.52  22.2w 14WW508   F51  C~1vXp      
2015 01  17.25576  05 20 54.982  +12 59 39.76  21.9w 14WW508   F51  C~1vXp      
2015 01  17.26891  05 20 54.852  +12 59 40.13  21.9w 14WW508   F51  C~1vXp      
2015 01  17.28202  05 20 54.718  +12 59 40.39  22.1w 14WW508   F51  C~1vXp      
2015 01  19.37500  05 20 35.333  +13 00 23.30  22.1w 14WW508   F51  C~1vXp      
2015 01  19.38807  05 20 35.210  +13 00 23.59  22.0w 14WW508   F51  C~1vXp      
2015 01  19.40113  05 20 35.084  +13 00 23.91  21.9w 14WW508   F51  C~1vXp      
2015 01  19.41424  05 20 34.968  +13 00 24.12  22.1w 14WW508   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     0.04       0.00    -0.05
  2   0.0000     -2.53    -0.04      -0.08    -0.04
  3   0.0001     -5.16     0.05      -0.28    -0.13
  4   0.0001     -7.72    -0.08      -0.24    -0.01
  5   1.9523  73334.06    -0.02   -7117.09    -0.17
  6   1.9523  73331.58     0.06   -7117.35    -0.03
  7   1.9524  73328.91    -0.06   -7117.72    -0.01
  8   1.9524  73326.47     0.08   -7118.01     0.10
  9   1.9984  70318.74 (  -0.04)  -7417.46 (   0.46)
 10   1.9984  70315.61 (  -0.09)  -7417.60 (   0.45)
 11   1.9984  70312.62     0.01   -7418.02     0.17
 12   1.9985  70309.56     0.01   -7417.97     0.35
 13   3.0524 108041.59     0.07  -11977.66    -0.03
 14   3.0524 108037.69    -0.02  -11977.45     0.01
 15   3.0525 108033.89    -0.02  -11977.26     0.03
 16   3.0525 108030.03    -0.06  -11977.16    -0.04
 17   4.0491 158967.19    -0.04  -17536.43     0.06
 18   4.0491 158963.14    -0.28  -17536.37    -0.04
 19   4.0491 158959.42    -0.20  -17536.21    -0.03
 20   4.0492 158955.87     0.04  -17535.97     0.05
 21   4.0549 158344.69    -0.03  -17509.94    -0.02
 22   4.0550 158340.87     0.37  -17509.69     0.03
 23   4.0550 158336.48     0.17  -17509.49     0.03
 24   4.1910 144652.64     0.04  -15545.15    -0.11
 25   4.1910 144649.86    -0.02  -15544.41    -0.12
 26   4.1911 144647.13    -0.04  -15543.52     0.01
 27   4.1911 144644.30    -0.17  -15542.74     0.03
 28   4.1968 144235.67     0.08  -15424.19    -0.04
 29   4.1969 144233.08     0.05  -15423.42    -0.02
 30   4.1969 144230.44    -0.04  -15422.60     0.05
 31   4.1969 144227.99     0.06  -15421.94    -0.04

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.

14WW508    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        28.552    28.556    28.549
ecceobj         0.534     0.534     0.534
incobj          9.490     9.490     9.490
qmin           13.085    13.239    13.065
qmax           43.994    43.815    43.806
amean          28.142    28.415    27.864
amin           27.567    28.218    27.104
amax           28.706    28.620    28.616
emean           0.527     0.530     0.523
emin            0.517     0.527     0.513
emax            0.534     0.534     0.534
imean           9.064     8.847     8.955
imin            8.813     8.721     8.821
imax            9.427     8.948     9.115
excite_mean     0.550     0.552     0.546
fracstop        0.002     0.001     0.002
cjmean          2.695     2.690     2.703

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       271.2     265.7     272.1
kozaiamp          7.8       3.6      10.2