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 Fri Nov 16 02:09:45 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   24 observations of   24
# Arc:   6.15y
# First observation: 2012/02/16
#  Last observation: 2018/04/10
# Chi-squared of fit:    12.40 DOF:   42 RMS:  0.13
# Min/Max residuals:    -0.37    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.756778E-05  3.422356E-02  3.640514E-06  7.419079E-03  3.089991E-02  1.296297E-03
# Covariance matrix:
  4.8221E-13 -2.3040E-13  3.2260E-14 -3.1498E-14 -1.1203E-13 -7.2780E-13
 -2.3040E-13  3.2000E-13 -9.4875E-14  7.2426E-14 -1.4866E-13  1.7423E-12
  3.2260E-14 -9.4875E-14  3.4136E-13 -1.1264E-13  7.4832E-14 -5.9178E-13
 -3.1498E-14  7.2426E-14 -1.1264E-13  5.0081E-14 -4.4876E-14  4.4306E-13
 -1.1203E-13 -1.4866E-13  7.4832E-14 -4.4876E-14  4.0707E-13 -1.1329E-12
 -7.2780E-13  1.7423E-12 -5.9178E-13  4.4306E-13 -1.1329E-12  1.0696E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.780331  153.439026    0.107016    0.116161   -0.976951  2455974.017786
# Heliocentric elements and errors
Epoch:              2455974.5000  =  2012/02/17
Mean Anomaly:           20.32026 +/-     0.034
Argument of Peri:        4.11698 +/-     0.042
Long of Asc Node:      125.43114 +/-     0.001
Inclination:            13.88625 +/-     0.000
Eccentricity:         0.09188017 +/-    0.0001
Semi-Major Axis:     36.43475724 +/-    0.0044
Time of Perihelion: 2451440.3177 +/-       7.6
Perihelion:          33.08712542 +/-    0.0059
Aphelion:            39.78238907 +/-    0.0065
Period (y)              219.9288 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -29.57388146 +/-    0.0006
Ecliptic Y           14.90637241 +/-    0.0003
Ecliptic Z            3.82093847 +/-    0.0001
Ecliptic XDOT        -0.00139315 +/-    0.0000
Ecliptic YDOT        -0.00269177 +/-    0.0000
Ecliptic ZDOT         0.00066642 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.33785573 +/-    0.0005
Geocenter to KBO     32.36257301 +/-    0.0007
# 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.

2012 02  16.51702  10 31 39.216  +16 33 19.55  22.1w 14WE509   F51  C~2dYx      
2012 02  16.53169  10 31 39.120  +16 33 20.08  22.3w 14WE509   F51  C~2dYx      
2012 02  16.56101  10 31 38.971  +16 33 21.23  22.1w 14WE509   F51  C~2dYx      
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      
2018 04  10.16848  11 15 33.862  +14 44 36.86  22.4R 14WE509   G37  C~2dYx      
2018 04  10.21403  11 15 33.648  +14 44 38.61        14WE509   G37  C~2dYx      

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     0.00       0.00     0.03
  2   0.0000      0.00    -0.16       0.00    -0.01
  3   0.0001      0.00     0.17       0.00     0.00
  4   2.7764      0.00     0.17       0.00     0.09
  5   2.7764      0.00     0.09       0.00     0.15
  6   2.7764      0.00    -0.02       0.00    -0.05
  7   2.7765      0.00     0.11       0.00     0.11
  8   2.7846      0.00    -0.03       0.00    -0.10
  9   2.7846      0.00    -0.24       0.00    -0.10
 10   2.7846      0.00    -0.02       0.00     0.05
 11   2.7873      0.00    -0.22       0.00    -0.17
 12   2.7874      0.00     0.12       0.00     0.01
 13   2.7874      0.00    -0.01       0.00    -0.01
 14   2.7874      0.00     0.04       0.00    -0.04
 15   2.9517      0.00     0.01       0.00     0.07
 16   2.9517      0.00    -0.08       0.00     0.02
 17   2.9517      0.00    -0.01       0.00     0.10
 18   2.9518      0.00    -0.09       0.00     0.17
 19   3.0035      0.00    -0.11       0.00     0.07
 20   3.0035      0.00     0.04       0.00    -0.05
 21   3.0035      0.00    -0.04       0.00    -0.17
 22   3.0036      0.00     0.14       0.00    -0.14
 23   6.1455      0.00     0.02       0.00    -0.37
 24   6.1456      0.00    -0.01       0.00     0.39

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:3

Type:           4:3E      4:3E      4:3E

axisobj        36.460    36.460    36.460
ecceobj         0.092     0.092     0.092
incobj         13.891    13.891    13.891
qmin           32.659    32.659    32.659
qmax           40.402    40.402    40.402
amean          36.482    36.482    36.482
amin           36.219    36.219    36.219
amax           36.771    36.771    36.770
emean           0.079     0.079     0.079
emin            0.057     0.057     0.057
emax            0.102     0.102     0.102
imean           7.040     7.040     7.040
imin            2.689     2.690     2.688
imax           12.801    12.801    12.801
excite_mean     0.149     0.149     0.149
fracstop        1.000     1.000     1.000
cjmean          3.001     3.001     3.001

libcent 0       179.6     179.6     179.6
libamp  0        27.4      27.4      27.4
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       180.3     180.2     180.4
kozaiamp        179.9     180.0     180.0