Orbit Fit and Astrometric record for 14WJ509

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: 14WJ509   
# Created Mon Oct 23 01:38:31 2017
# Orbit generated from Bernstein formalism
# Fitting   35 observations of   35
# Arc:   2.14y
# First observation: 2012/12/23
#  Last observation: 2015/02/13
Preliminary a, adot, b, bdot, g, gdot:
  -0.000053   0.024107  -0.000039   0.008569   0.025217   0.000000
# Chi-squared of fit:    14.51 DOF:   64 RMS:  0.11
# Min/Max residuals:    -0.31    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.509253E-05  2.400414E-02  5.347020E-06  8.518530E-03  2.523468E-02 -3.024099E-03
# Covariance matrix:
  1.7162E-13 -6.6606E-14 -1.0006E-15  6.8610E-15  6.3248E-14  3.4064E-13
 -6.6606E-14  1.0239E-12 -8.8924E-14  3.8917E-13  9.6668E-13  2.0857E-11
 -1.0006E-15 -8.8924E-14  1.6351E-13 -1.2347E-13 -8.7417E-14 -1.9447E-12
  6.8610E-15  3.8917E-13 -1.2347E-13  2.2561E-13  3.8917E-13  8.4942E-12
  6.3248E-14  9.6668E-13 -8.7417E-14  3.8917E-13  1.0893E-12  2.0785E-11
  3.4064E-13  2.0857E-11 -1.9447E-12  8.4942E-12  2.0785E-11  4.5541E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    7.541154  120.800840    0.472136    0.112953   -0.852707  2456285.062158
# Heliocentric elements and errors
Epoch:              2456280.5000  =  2012/12/19
Mean Anomaly:          303.29236 +/-     0.046
Argument of Peri:       92.72235 +/-     0.109
Long of Asc Node:      100.28186 +/-     0.001
Inclination:            20.88809 +/-     0.001
Eccentricity:         0.14219718 +/-    0.0008
Semi-Major Axis:     43.17486625 +/-    0.0130
Time of Perihelion: 2472602.8996 +/-      10.8
Perihelion:          37.03552222 +/-    0.0380
Aphelion:            49.31421028 +/-    0.0393
Period (y)              283.6970 +/-      0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -20.15029654 +/-    0.0008
Ecliptic Y           34.72686787 +/-    0.0014
Ecliptic Z            5.20089319 +/-    0.0002
Ecliptic XDOT        -0.00201448 +/-    0.0000
Ecliptic YDOT        -0.00171574 +/-    0.0000
Ecliptic ZDOT         0.00087330 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.48504777 +/-    0.0013
Geocenter to KBO     39.62800141 +/-    0.0016
# Hcoef:  5.51

The following table shows the complete astrometric record for 14WJ509. 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 (14WJ509) followed by the observatory code and reference code for the source of the astrometry.

2012 12  23.56138  08 19 23.708  +27 19 50.43  21.6w 14WJ509   F51  C~1vXr      
2012 12  23.57584  08 19 23.650  +27 19 50.88  21.6w 14WJ509   F51  C~1vXr      
2012 12  23.59029  08 19 23.577  +27 19 51.11  21.6w 14WJ509   F51  C~1vXr      
2012 12  23.60463  08 19 23.503  +27 19 51.59  21.6w 14WJ509   F51  C~1vXr      
2013 01  16.50105  08 17 18.870  +27 29 40.82  21.5w 14WJ509   F51  C~1vXr      
2013 01  16.51548  08 17 18.794  +27 29 41.07  21.4w 14WJ509   F51  C~1vXr      
2013 01  16.52994  08 17 18.703  +27 29 41.60  21.6w 14WJ509   F51  C~1vXr      
2013 01  16.54447  08 17 18.630  +27 29 41.77  21.5w 14WJ509   F51  C~1vXr      
2014 01  01.40250  08 25 16.797  +27 32 36.18  21.5w 14WJ509   F51  C~1vXr      
2014 01  01.41636  08 25 16.743  +27 32 36.51  21.7w 14WJ509   F51  C~1vXr      
2014 01  01.43021  08 25 16.661  +27 32 36.84  21.8w 14WJ509   F51  C~1vXr      
2014 01  01.44412  08 25 16.575  +27 32 37.17  21.9w 14WJ509   F51  C~1vXr      
2014 03  02.23631  08 20 03.506  +27 52 14.83  21.8w 14WJ509   F51  C~1vXr      
2014 03  02.24781  08 20 03.454  +27 52 15.03  21.6w 14WJ509   F51  C~1vXr      
2014 03  02.25924  08 20 03.384  +27 52 15.06  21.5w 14WJ509   F51  C~1vXr      
2014 03  02.27073  08 20 03.349  +27 52 15.32  21.9w 14WJ509   F51  C~1vXr      
2014 05  20.26113  08 19 39.239  +27 44 50.54  21.6w 14WJ509   F51  C~1vXr      
2014 05  20.26577  08 19 39.254  +27 44 50.35  21.9w 14WJ509   F51  C~1vXr      
2014 05  20.27039  08 19 39.277  +27 44 50.42  21.9w 14WJ509   F51  C~1vXr      
2014 05  20.27502  08 19 39.295  +27 44 50.20  21.8w 14WJ509   F51  C~1vXr      
2014 11  21.52226  08 34 17.156  +27 22 47.75  21.8w 14WJ509   F51  C~1vXr      
2014 11  21.53616  08 34 17.137  +27 22 48.06  21.7w 14WJ509   F51  C~1vXr      
2014 11  21.55007  08 34 17.117  +27 22 48.43  21.7w 14WJ509   F51  C~1vXr      
2014 11  21.56394  08 34 17.088  +27 22 48.62  21.7w 14WJ509   F51  C~1vXr      
2014 12  29.56331  08 32 10.781  +27 39 12.97  21.5w 14WJ509   F51  C~1vXr      
2014 12  29.57513  08 32 10.722  +27 39 13.24  21.5w 14WJ509   F51  C~1vXr      
2014 12  29.58690  08 32 10.659  +27 39 13.58  21.6w 14WJ509   F51  C~1vXr      
2014 12  29.59872  08 32 10.608  +27 39 13.86  21.6w 14WJ509   F51  C~1vXr      
2015 02  12.28977  08 28 08.842  +27 56 58.64  21.8w 14WJ509   F51  C~1vXr      
2015 02  12.30307  08 28 08.781  +27 56 58.94  21.7w 14WJ509   F51  C~1vXr      
2015 02  12.31637  08 28 08.702  +27 56 59.31  21.4w 14WJ509   F51  C~1vXr      
2015 02  12.32973  08 28 08.644  +27 56 59.47  21.5w 14WJ509   F51  C~1vXr      
2015 02  13.30209  08 28 03.520  +27 57 16.58  21.7w 14WJ509   F51  C~1vXr      
2015 02  13.31556  08 28 03.433  +27 57 16.32  21.9w 14WJ509   F51  C~1vXr      
2015 02  13.32889  08 28 03.365  +27 57 16.93  21.6w 14WJ509   F51  C~1vXr      

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    -0.01       0.00    -0.00
  2   0.0000     -0.86     0.11       0.26     0.11
  3   0.0001     -1.86     0.08       0.26    -0.03
  4   0.0001     -2.92    -0.02       0.50     0.07
  5   0.0655  -1753.02    -0.12     197.20    -0.01
  6   0.0656  -1754.06    -0.03     197.21    -0.07
  7   0.0656  -1755.36    -0.19     197.46     0.10
  8   0.0657  -1756.35    -0.03     197.40    -0.03
  9   1.0235   4389.71    -0.16    1849.37    -0.04
 10   1.0236   4388.93     0.07    1849.52    -0.02
 11   1.0236   4387.79    -0.06    1849.57    -0.09
 12   1.0236   4386.60    -0.23    1849.62    -0.17
 13   1.1873     67.79     0.26    2014.01    -0.04
 14   1.1874     67.07     0.20    2014.04     0.03
 15   1.1874     66.16    -0.06    2013.86    -0.12
 16   1.1874     65.65     0.08    2014.00     0.07
 17   1.4037   -143.27     0.07    1507.50     0.08
 18   1.4037   -143.03     0.06    1507.36    -0.03
 19   1.4037   -142.75     0.10    1507.50     0.14
 20   1.4037   -142.47     0.14    1507.34     0.01
 21   1.9109  11513.08     0.04    3077.01     0.00
 22   1.9110  11512.75     0.08    3077.25     0.01
 23   1.9110  11512.40     0.10    3077.54     0.07
 24   1.9110  11511.98     0.04    3077.62    -0.07
 25   2.0151   9630.59     0.12    3598.56    -0.03
 26   2.0151   9629.76     0.12    3598.62    -0.08
 27   2.0151   9628.86     0.05    3598.74    -0.08
 28   2.0152   9628.14     0.15    3598.84    -0.09
 29   2.1375   6250.32    -0.20    3825.57    -0.03
 30   2.1376   6249.46    -0.08    3825.66     0.07
 31   2.1376   6248.35    -0.21    3825.77     0.17
 32   2.1376   6247.57    -0.01    3825.73     0.14
 33   2.1403   6177.47    -0.08    3825.56     0.22
 34   2.1403   6176.42    -0.15    3825.03    -0.31
 35   2.1404   6175.40    -0.20    3825.40     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.

14WJ509    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        43.111    43.143    43.079
ecceobj         0.139     0.141     0.137
incobj         20.897    20.897    20.898
qmin           36.381    36.267    36.501
qmax           50.034    50.249    49.893
amean          43.051    43.084    43.018
amin           42.701    42.725    42.679
amax           43.451    43.490    43.408
emean           0.136     0.137     0.134
emin            0.121     0.119     0.119
emax            0.152     0.157     0.150
imean          19.390    19.414    19.378
imin           18.848    18.845    18.846
imax           19.990    20.047    19.960
excite_mean     0.359     0.360     0.358
fracstop        1.000     1.000     1.000
cjmean          2.935     2.935     2.935

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       178.7     184.8     178.2
kozaiamp        180.0     180.0     180.0