Orbit Fit and Astrometric record for 14WQ509

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: 14WQ509   
# Created Tue Dec 19 02:38:07 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:   1.79y
# First observation: 2013/04/11
#  Last observation: 2015/01/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000047   0.020649   0.000007   0.001942   0.023100   0.000000
# Chi-squared of fit:     7.54 DOF:   32 RMS:  0.11
# Min/Max residuals:    -0.26    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.306515E-05  1.998625E-02  1.858055E-06  1.869588E-03  2.264081E-02 -2.047764E-03
# Covariance matrix:
  3.6511E-13 -4.2760E-13  1.0889E-14 -2.6559E-14 -2.0367E-13 -5.8690E-12
 -4.2760E-13  1.9841E-12 -3.7447E-14  2.1845E-13  5.1543E-13  3.5662E-11
  1.0889E-14 -3.7447E-14  2.9040E-13 -1.8175E-13 -2.8814E-14 -8.6654E-13
 -2.6559E-14  2.1845E-13 -1.8175E-13  1.7312E-13  5.1335E-14  4.1644E-12
 -2.0367E-13  5.1543E-13 -2.8814E-14  5.1335E-14  5.6652E-13  1.3223E-11
 -5.8690E-12  3.5662E-11 -8.6654E-13  4.1644E-12  1.3223E-11  7.1679E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    8.321302   97.589592   -0.974546   -0.034752    0.237888  2456393.749258
# Heliocentric elements and errors
Epoch:              2456390.5000  =  2013/04/08
Mean Anomaly:          219.51130 +/-     0.432
Argument of Peri:      207.87797 +/-     0.423
Long of Asc Node:       40.58945 +/-     0.006
Inclination:             9.80620 +/-     0.001
Eccentricity:         0.13620615 +/-    0.0006
Semi-Major Axis:     39.53466849 +/-    0.0084
Time of Perihelion: 2491823.2188 +/-     108.3
Perihelion:          34.14980347 +/-    0.0253
Aphelion:            44.91953350 +/-    0.0261
Period (y)              248.5852 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.70630213 +/-    0.0002
Ecliptic Y           42.95560044 +/-    0.0014
Ecliptic Z            6.39227239 +/-    0.0002
Ecliptic XDOT        -0.00236529 +/-    0.0000
Ecliptic YDOT        -0.00059418 +/-    0.0000
Ecliptic ZDOT         0.00018800 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.94336404 +/-    0.0014
Geocenter to KBO     44.16802818 +/-    0.0015
# Hcoef:  5.58

The following table shows the complete astrometric record for 14WQ509. 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 (14WQ509) followed by the observatory code and reference code for the source of the astrometry.

2013 04  11.24848  06 35 16.633  +31 31 42.72  22.4w 14WQ509   F51  C~1vXs      
2013 04  11.25313  06 35 16.639  +31 31 42.57  22.1w 14WQ509   F51  C~1vXs      
2013 04  11.25775  06 35 16.632  +31 31 42.84  22.2w 14WQ509   F51  C~1vXs      
2013 04  11.26239  06 35 16.633  +31 31 42.82  22.2w 14WQ509   F51  C~1vXs      
2013 12  26.37298  06 45 43.567  +31 40 45.98  22.1w 14WQ509   F51  C~1vXs      
2013 12  26.38839  06 45 43.470  +31 40 46.16  22.0w 14WQ509   F51  C~1vXs      
2013 12  26.40383  06 45 43.377  +31 40 46.43  21.9w 14WQ509   F51  C~1vXs      
2014 11  17.40840  06 54 27.273  +31 32 56.15  21.9w 14WQ509   F51  C~1vXs      
2014 11  17.42145  06 54 27.223  +31 32 56.39  22.2w 14WQ509   F51  C~1vXs      
2014 11  17.43458  06 54 27.183  +31 32 56.45  22.1w 14WQ509   F51  C~1vXs      
2014 11  17.44766  06 54 27.135  +31 32 56.65  22.1w 14WQ509   F51  C~1vXs      
2015 01  14.42758  06 49 34.299  +31 42 56.63  21.9w 14WQ509   F51  C~1vXs      
2015 01  14.44047  06 49 34.226  +31 42 56.71  22.2w 14WQ509   F51  C~1vXs      
2015 01  14.45338  06 49 34.155  +31 42 56.79  22.2w 14WQ509   F51  C~1vXs      
2015 01  14.46621  06 49 34.087  +31 42 56.80  21.9w 14WQ509   F51  C~1vXs      
2015 01  23.28723  06 48 46.794  +31 43 24.04  22.1w 14WQ509   F51  C~1vXs      
2015 01  23.30115  06 48 46.697  +31 43 23.99  22.1w 14WQ509   F51  C~1vXs      
2015 01  23.31512  06 48 46.629  +31 43 23.66  22.0w 14WQ509   F51  C~1vXs      
2015 01  23.32921  06 48 46.550  +31 43 23.75  22.1w 14WQ509   F51  C~1vXs      

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     0.18       0.00    -0.11
  2   0.0000      0.09     0.14      -0.14    -0.21
  3   0.0000     -0.02    -0.10       0.12     0.10
  4   0.0000     -0.01    -0.21       0.10     0.13
  5   0.7094   7951.48     0.10    1131.37    -0.04
  6   0.7095   7950.23    -0.02    1131.44     0.00
  7   0.7095   7949.03    -0.10    1131.61     0.14
  8   1.6021  14676.38    -0.00    1303.11     0.07
  9   1.6021  14675.72    -0.06    1303.28     0.11
 10   1.6022  14675.20     0.04    1303.29    -0.01
 11   1.6022  14674.57     0.03    1303.42    -0.01
 12   1.7609  10878.79    -0.02    1526.95    -0.03
 13   1.7610  10877.86    -0.03    1526.94    -0.01
 14   1.7610  10876.95    -0.02    1526.94     0.02
 15   1.7610  10876.08     0.04    1526.87    -0.01
 16   1.7852  10271.13     0.19    1497.51     0.20
 17   1.7852  10269.90    -0.10    1497.34     0.09
 18   1.7853  10269.06     0.00    1496.93    -0.26
 19   1.7853  10268.05    -0.06    1496.93    -0.20

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.

14WQ509    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.525    39.547    39.503
ecceobj         0.135     0.137     0.134
incobj          9.789     9.789     9.789
qmin           32.975    32.893    32.924
qmax           46.373    46.307    46.380
amean          39.457    39.457    39.457
amin           39.038    39.055    39.036
amax           39.910    39.901    39.922
emean           0.145     0.146     0.143
emin            0.128     0.130     0.128
emax            0.164     0.163     0.164
imean           9.290     9.242     9.356
imin            8.555     8.577     8.524
imax            9.967     9.957    10.207
excite_mean     0.217     0.217     0.217
fracstop        1.000     1.000     1.000
cjmean          2.998     2.998     2.998

libcent 0       180.3     180.6     179.4
libamp  0        73.3      63.7      81.6
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       176.2     176.0     176.4
kozaiamp        179.9     180.0     180.0