Orbit Fit and Astrometric record for 14WL509

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: 14WL509   
# Created Sun Apr 22 01:38:13 2018
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:   3.38y
# First observation: 2014/11/23
#  Last observation: 2018/04/10
Preliminary a, adot, b, bdot, g, gdot:
  -0.000051   0.023372  -0.000010   0.004021   0.024471   0.000000
# Chi-squared of fit:    10.18 DOF:   34 RMS:  0.13
# Min/Max residuals:    -0.27    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.550048E-05  2.304173E-02  2.759959E-06  3.959853E-03  2.418352E-02 -2.744050E-03
# Covariance matrix:
  3.2672E-13  1.6655E-12 -2.2084E-14  5.1429E-13  8.0609E-13  3.9420E-11
  1.6655E-12  6.3962E-11 -1.8758E-12  2.0446E-11  2.2499E-11  1.5523E-09
 -2.2084E-14 -1.8758E-12  1.5037E-13 -6.4372E-13 -6.3036E-13 -4.5874E-11
  5.1429E-13  2.0446E-11 -6.4372E-13  6.6254E-12  7.1670E-12  4.9714E-10
  8.0609E-13  2.2499E-11 -6.3036E-13  7.1670E-12  8.1470E-12  5.4455E-10
  3.9420E-11  1.5523E-09 -4.5874E-11  4.9714E-10  5.4455E-10  3.7741E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.884338  134.963936    0.950427   -0.055368   -0.263905  2456985.060458
# Heliocentric elements and errors
Epoch:              2456980.5000  =  2014/11/19
Mean Anomaly:          279.55699 +/-     0.841
Argument of Peri:       44.62031 +/-     0.080
Long of Asc Node:      184.37049 +/-     0.002
Inclination:            15.10436 +/-     0.000
Eccentricity:         0.13860462 +/-    0.0082
Semi-Major Axis:     41.79309680 +/-    0.0708
Time of Perihelion: 2479032.1480 +/-     223.5
Perihelion:          36.00038035 +/-    0.3471
Aphelion:            47.58581325 +/-    0.3511
Period (y)              270.1874 +/-      0.69
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -28.11567597 +/-    0.0034
Ecliptic Y           29.49350454 +/-    0.0034
Ecliptic Z           -8.51550022 +/-    0.0010
Ecliptic XDOT        -0.00170036 +/-    0.0000
Ecliptic YDOT        -0.00199817 +/-    0.0000
Ecliptic ZDOT         0.00050277 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.62777666 +/-    0.0033
Geocenter to KBO     41.35046654 +/-    0.0049
# Hcoef:  5.96

The following table shows the complete astrometric record for 14WL509. 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 (14WL509) followed by the observatory code and reference code for the source of the astrometry.

2014 11  23.55968  08 55 49.606  +04 57 38.42  22.4w 14WL509   F51  C~1vXr      
2014 11  23.58502  08 55 49.586  +04 57 38.34  22.5w 14WL509   F51  C~1vXr      
2014 11  23.59776  08 55 49.576  +04 57 37.80  22.2w 14WL509   F51  C~1vXr      
2015 01  19.43557  08 52 47.307  +05 01 00.75  22.4w 14WL509   F51  C~1vXr      
2015 01  19.44731  08 52 47.244  +05 01 00.62  22.2w 14WL509   F51  C~1vXr      
2015 01  19.45911  08 52 47.208  +05 01 00.87  22.2w 14WL509   F51  C~1vXr      
2015 01  19.47092  08 52 47.142  +05 01 00.98  22.2w 14WL509   F51  C~1vXr      
2015 01  21.38438  08 52 38.141  +05 01 35.05  22.2w 14WL509   F51  C~1vXr      
2015 01  21.39928  08 52 38.060  +05 01 35.19  22.2w 14WL509   F51  C~1vXr      
2015 01  21.41265  08 52 37.996  +05 01 35.70  22.1w 14WL509   F51  C~1vXr      
2015 01  21.42611  08 52 37.926  +05 01 35.88  22.0w 14WL509   F51  C~1vXr      
2015 02  22.35558  08 50 07.819  +05 14 02.71  22.3w 14WL509   F51  C~1vXr      
2015 02  22.37005  08 50 07.748  +05 14 03.45  22.4w 14WL509   F51  C~1vXr      
2015 02  22.38422  08 50 07.679  +05 14 03.62  22.4w 14WL509   F51  C~1vXr      
2015 03  22.25181  08 48 26.974  +05 26 59.53  22.1w 14WL509   F51  C~1vXr      
2015 03  22.26555  08 48 26.943  +05 26 59.92  22.0w 14WL509   F51  C~1vXr      
2015 03  22.27934  08 48 26.910  +05 27 00.33  22.2w 14WL509   F51  C~1vXr      
2015 03  22.29308  08 48 26.856  +05 27 00.72  22.2w 14WL509   F51  C~1vXr      
2018 04  10.13701  09 04 03.476  +05 07 02.39  21.9R 14WL509   G37              
2018 04  10.23580  09 04 03.317  +05 07 04.62        14WL509   G37              

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    -0.09       0.00    -0.04
  2   0.0001     -0.26    -0.02      -0.16     0.19
  3   0.0001     -0.26     0.15      -0.72    -0.18
  4   0.1557  -2671.02    -0.13    -573.00     0.35
  5   0.1557  -2671.89    -0.13    -573.39    -0.00
  6   0.1558  -2672.47     0.14    -573.30     0.13
  7   0.1558  -2673.45     0.03    -573.47    -0.01
  8   0.1611  -2812.13     0.10    -578.58    -0.05
  9   0.1611  -2813.33     0.00    -578.78    -0.22
 10   0.1611  -2814.39    -0.07    -578.56     0.04
 11   0.1612  -2815.44    -0.12    -578.68    -0.05
 12   0.2486  -5178.40     0.21    -490.95    -0.27
 13   0.2486  -5179.63     0.02    -490.54     0.03
 14   0.2487  -5180.67    -0.00    -490.66    -0.20
 15   0.3250  -6843.08    -0.07    -166.28     0.03
 16   0.3250  -6843.64     0.02    -166.03     0.07
 17   0.3250  -6844.23     0.09    -165.77     0.12
 18   0.3251  -6845.11    -0.14    -165.62     0.07
 19   3.3774   6919.31     0.06    2635.15     0.11
 20   3.3776   6916.39    -0.06    2636.61    -0.12

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.

14WL509    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.606    41.768    41.487
ecceobj         0.135     0.157     0.113
incobj         15.135    15.135    15.136
qmin           35.032    34.299    35.951
qmax           48.457    49.437    47.224
amean          41.581    41.714    41.453
amin           41.214    41.364    41.113
amax           42.035    42.098    41.823
emean           0.129     0.152     0.111
emin            0.107     0.133     0.095
emax            0.154     0.175     0.130
imean          15.499    15.646    15.625
imin           14.381    14.362    14.573
imax           16.539    16.823    16.530
excite_mean     0.297     0.310     0.292
fracstop        1.000     1.000     1.000
cjmean          2.969     2.961     2.971

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       178.0     176.2     179.1
kozaiamp        180.0     180.0     180.0