Orbit Fit and Astrometric record for 14WE509

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: 14WE509   
# Created Sun Oct 22 01:38:31 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:  82.98d
# First observation: 2014/11/26
#  Last observation: 2015/02/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.000013   0.034741  -0.000008   0.006722   0.030956   0.000000
# Chi-squared of fit:     5.86 DOF:   32 RMS:  0.10
# Min/Max residuals:    -0.24    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.692911E-05  3.295220E-02  2.820580E-06  6.640090E-03  2.980916E-02  3.014847E-03
# Covariance matrix:
  2.1727E-13 -1.1706E-11  2.8960E-14  9.2964E-13 -5.1279E-12 -4.4216E-10
 -1.1706E-11  1.5800E-09 -4.3479E-12 -1.2019E-10  7.5092E-10  6.7485E-08
  2.8960E-14 -4.3479E-12  1.5328E-13 -4.9564E-13 -2.2493E-12 -2.2780E-10
  9.2964E-13 -1.2019E-10 -4.9564E-13  2.4398E-11 -4.6899E-11 -2.6539E-09
 -5.1279E-12  7.5092E-10 -2.2493E-12 -4.6899E-11  3.7354E-10  3.5781E-08
 -4.4216E-10  6.7485E-08 -2.2780E-10 -2.6539E-09  3.5781E-08  3.7428E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.673941  160.264267    0.981073   -0.014526    0.109056  2456988.089108
# Heliocentric elements and errors
Epoch:              2456980.5000  =  2014/11/19
Mean Anomaly:           30.43497 +/-    18.540
Argument of Peri:      356.33499 +/-    24.574
Long of Asc Node:      125.37387 +/-     0.087
Inclination:            13.86336 +/-     0.030
Eccentricity:         0.10927704 +/-    0.0410
Semi-Major Axis:     36.78914514 +/-    0.4373
Time of Perihelion: 2450090.0384 +/-    4195.6
Perihelion:          32.76893633 +/-    1.5570
Aphelion:            40.80935395 +/-    1.5836
Period (y)              223.1453 +/-      3.98
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -30.86143438 +/-    0.0203
Ecliptic Y           12.11347631 +/-    0.0073
Ecliptic Z            4.47973940 +/-    0.0029
Ecliptic XDOT        -0.00120786 +/-    0.0002
Ecliptic YDOT        -0.00278860 +/-    0.0001
Ecliptic ZDOT         0.00064148 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.45493246 +/-    0.0189
Geocenter to KBO     33.54673184 +/-    0.0218
# Hcoef:  7.08

The following table shows the complete astrometric record for 14WE509. 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 (14WE509) followed by the observatory code and reference code for the source of the astrometry.

2014 11  26.58833  10 59 05.397  +14 48 40.53  22.4w 14WE509   F51  C~1vXq      
2014 11  26.60087  10 59 05.420  +14 48 40.66  22.7w 14WE509   F51  C~1vXq      
2014 11  26.61340  10 59 05.441  +14 48 40.53  22.4w 14WE509   F51  C~1vXq      
2014 11  26.62594  10 59 05.478  +14 48 40.76  22.4w 14WE509   F51  C~1vXq      
2014 11  29.57655  10 59 11.840  +14 48 59.52  22.7w 14WE509   F51  C~1vXq      
2014 11  29.58953  10 59 11.851  +14 48 59.62  22.7w 14WE509   F51  C~1vXq      
2014 11  29.60251  10 59 11.890  +14 48 59.87  22.4w 14WE509   F51  C~1vXq      
2014 11  30.58504  10 59 13.771  +14 49 07.42  22.6w 14WE509   F51  C~1vXq      
2014 11  30.59695  10 59 13.815  +14 49 07.70  22.3w 14WE509   F51  C~1vXq      
2014 11  30.60888  10 59 13.827  +14 49 07.78  22.5w 14WE509   F51  C~1vXq      
2014 11  30.62081  10 59 13.852  +14 49 07.85  22.5w 14WE509   F51  C~1vXq      
2015 01  29.60873  10 57 41.455  +15 16 07.62  22.5w 14WE509   F51  C~1vXq      
2015 01  29.62087  10 57 41.393  +15 16 08.05  22.1w 14WE509   F51  C~1vXq      
2015 01  29.63302  10 57 41.342  +15 16 08.61  22.3w 14WE509   F51  C~1vXq      
2015 01  29.64514  10 57 41.281  +15 16 09.17  22.6w 14WE509   F51  C~1vXq      
2015 02  17.53405  10 56 05.874  +15 29 00.96  22.6w 14WE509   F51  C~1vXq      
2015 02  17.54573  10 56 05.819  +15 29 01.31  22.6w 14WE509   F51  C~1vXq      
2015 02  17.55749  10 56 05.748  +15 29 01.67  22.3w 14WE509   F51  C~1vXq      
2015 02  17.56938  10 56 05.693  +15 29 02.18  22.4w 14WE509   F51  C~1vXq      

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     0.14
  2   0.0000      0.26     0.02       0.25     0.17
  3   0.0001      0.59     0.00       0.25    -0.05
  4   0.0001      0.99     0.06       0.67     0.14
  5   0.0082     78.78     0.01      53.70    -0.10
  6   0.0082     78.89    -0.18      53.85    -0.18
  7   0.0083     79.32    -0.04      54.30     0.04
  8   0.0109    101.54    -0.13      71.83    -0.24
  9   0.0110    102.02     0.10      72.33     0.05
 10   0.0110    102.15    -0.01      72.48    -0.02
 11   0.0110    102.45     0.05      72.68    -0.03
 12   0.1753  -1758.22     0.06    1049.04     0.06
 13   0.1753  -1759.21     0.00    1049.09    -0.02
 14   0.1753  -1760.11     0.03    1049.33     0.07
 15   0.1754  -1761.14    -0.07    1049.50     0.12
 16   0.2271  -3332.06    -0.17    1230.66     0.05
 17   0.2271  -3332.93     0.02    1230.68    -0.01
 18   0.2272  -3334.02    -0.01    1230.62    -0.14
 19   0.2272  -3334.95     0.14    1230.78    -0.06

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.

14WE509    quality flag:1

Type:           4:3E  CENTAURR  CENTAURR

axisobj        36.592    39.620    35.594
ecceobj         0.106     0.253     0.087
incobj         13.887    13.790    13.993
qmin           32.288    29.586    29.691
qmax           41.099    49.654    64.176
amean          36.480    39.620    38.091
amin           36.086    39.620    33.889
amax           36.901    39.620    47.393
emean           0.093     0.253     0.158
emin            0.071     0.253     0.014
emax            0.115     0.253     0.356
imean           8.810    12.294    10.011
imin            6.036    12.294     5.846
imax           12.502    12.294    12.784
excite_mean     0.180     0.331     0.250
fracstop        1.000     0.000     0.709
cjmean          2.989     2.931     2.969

libcent 0       179.5    -180.0    -180.0
libamp  0        97.7    -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       181.4     333.7     172.2
kozaiamp        180.0       0.0     179.9