Orbit Fit and Astrometric record for 14WG510

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: 14WG510   
# Created Fri Dec 15 02:38:05 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:   3.24y
# First observation: 2011/10/23
#  Last observation: 2015/01/19
Preliminary a, adot, b, bdot, g, gdot:
   0.000093   0.030096  -0.000009  -0.002228   0.028628   0.000000
# Chi-squared of fit:     8.33 DOF:   40 RMS:  0.11
# Min/Max residuals:    -0.23    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.670781E-05  3.050086E-02 -1.738304E-06 -2.258612E-03  2.856779E-02  6.677114E-03
# Covariance matrix:
  3.6643E-13 -4.3667E-13 -2.2373E-15  2.4515E-14 -2.8402E-13 -3.4660E-12
 -4.3667E-13  6.7457E-12  2.6413E-14 -4.8543E-13  6.7955E-12  6.6847E-11
 -2.2373E-15  2.6413E-14  3.4158E-13 -1.1428E-13  2.2169E-14  2.8706E-13
  2.4515E-14 -4.8543E-13 -1.1428E-13  8.1046E-14 -4.8749E-13 -4.8681E-12
 -2.8402E-13  6.7955E-12  2.2169E-14 -4.8749E-13  7.1094E-12  6.6694E-11
 -3.4660E-12  6.6847E-11  2.8706E-13 -4.8681E-12  6.6694E-11  6.7257E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.290014   62.996961    0.546356   -0.245906   -0.790014  2455857.942406
# Heliocentric elements and errors
Epoch:              2455850.5000  =  2011/10/16
Mean Anomaly:           53.36464 +/-     0.021
Argument of Peri:      178.68196 +/-     0.073
Long of Asc Node:      167.38788 +/-     0.002
Inclination:            17.47751 +/-     0.000
Eccentricity:         0.21841180 +/-    0.0008
Semi-Major Axis:     39.48635280 +/-    0.0091
Time of Perihelion: 2442416.0465 +/-       2.4
Perihelion:          30.86206730 +/-    0.0327
Aphelion:            48.11063829 +/-    0.0337
Period (y)              248.1297 +/-      0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           16.04061815 +/-    0.0014
Ecliptic Y           30.26941045 +/-    0.0028
Ecliptic Z          -10.40368814 +/-    0.0010
Ecliptic XDOT        -0.00235985 +/-    0.0000
Ecliptic YDOT         0.00181938 +/-    0.0000
Ecliptic ZDOT        -0.00039680 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.80189055 +/-    0.0025
Geocenter to KBO     35.00445789 +/-    0.0033
# Hcoef:  6.45

The following table shows the complete astrometric record for 14WG510. 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 (14WG510) followed by the observatory code and reference code for the source of the astrometry.

2011 10  23.44164  04 16 59.774  +03 46 04.27  22.1w 14WG510   F51  C~1vXu      
2011 10  23.45653  04 16 59.706  +03 46 03.73  22.1w 14WG510   F51  C~1vXu      
2011 10  23.47140  04 16 59.640  +03 46 03.50  21.9w 14WG510   F51  C~1vXu      
2011 10  23.48635  04 16 59.578  +03 46 02.73  22.0w 14WG510   F51  C~1vXu      
2014 01  21.24479  04 23 32.810  +03 55 30.53  22.3w 14WG510   F51  C~1vXu      
2014 01  21.25766  04 23 32.766  +03 55 30.79  22.4w 14WG510   F51  C~1vXu      
2014 01  21.27064  04 23 32.728  +03 55 31.05  22.4w 14WG510   F51  C~1vXu      
2014 01  21.28370  04 23 32.687  +03 55 31.20  22.2w 14WG510   F51  C~1vXu      
2014 11  23.46046  04 35 04.095  +04 06 21.62  21.9w 14WG510   F51  C~1vXu      
2014 11  23.47262  04 35 04.034  +04 06 21.61  22.1w 14WG510   F51  C~1vXu      
2014 11  23.48476  04 35 03.947  +04 06 21.36  22.0w 14WG510   F51  C~1vXu      
2014 11  23.49694  04 35 03.875  +04 06 21.34  22.0w 14WG510   F51  C~1vXu      
2015 01  09.25981  04 31 02.598  +04 03 24.48  22.2w 14WG510   F51  C~1vXu      
2015 01  09.27288  04 31 02.547  +04 03 24.72  22.1w 14WG510   F51  C~1vXu      
2015 01  09.28597  04 31 02.480  +04 03 24.90  22.4w 14WG510   F51  C~1vXu      
2015 01  09.29910  04 31 02.427  +04 03 24.97  22.0w 14WG510   F51  C~1vXu      
2015 01  15.22470  04 30 39.716  +04 04 33.25  22.3w 14WG510   F51  C~1vXu      
2015 01  15.23625  04 30 39.656  +04 04 33.44  22.4w 14WG510   F51  C~1vXu      
2015 01  15.24773  04 30 39.624  +04 04 33.52  22.2w 14WG510   F51  C~1vXu      
2015 01  15.25924  04 30 39.574  +04 04 33.76  22.3w 14WG510   F51  C~1vXu      
2015 01  19.22672  04 30 26.022  +04 05 30.36  22.1w 14WG510   F51  C~1vXu      
2015 01  19.25088  04 30 25.943  +04 05 30.83  22.2w 14WG510   F51  C~1vXu      
2015 01  19.26298  04 30 25.901  +04 05 31.00  22.2w 14WG510   F51  C~1vXu      

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     0.04       0.00     0.10
  2   0.0000     -1.10    -0.02      -0.35     0.01
  3   0.0001     -2.11     0.01      -0.39     0.22
  4   0.0001     -3.16     0.00      -0.98    -0.11
  5   2.2472   5889.69     0.04    -502.29    -0.23
  6   2.2473   5889.09    -0.03    -501.92    -0.18
  7   2.2473   5888.57    -0.01    -501.56    -0.14
  8   2.2473   5887.99    -0.06    -501.31    -0.20
  9   3.0856  16216.97     0.05   -1700.02    -0.18
 10   3.0856  16216.06     0.19   -1699.87    -0.01
 11   3.0857  16214.73    -0.10   -1699.89    -0.00
 12   3.0857  16213.66    -0.13   -1699.71     0.19
 13   3.2137  12611.24     0.01   -1235.40    -0.10
 14   3.2138  12610.53     0.08   -1235.03    -0.00
 15   3.2138  12609.57    -0.09   -1234.67     0.08
 16   3.2138  12608.80    -0.08   -1234.46     0.02
 17   3.2301  12285.23     0.12   -1106.84    -0.00
 18   3.2301  12284.38    -0.14   -1106.50     0.08
 19   3.2301  12283.92     0.00   -1106.33    -0.02
 20   3.2302  12283.22    -0.09   -1105.96     0.09
 21   3.2410  12093.00     0.06   -1014.18     0.06
 22   3.2411  12091.92     0.10   -1013.50     0.16
 23   3.2411  12091.33     0.07   -1013.22     0.15

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.

14WG510    quality flag:3

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

axisobj        39.621    39.647    39.596
ecceobj         0.221     0.223     0.219
incobj         17.463    17.463    17.463
qmin           27.847    27.684    28.423
qmax           51.654    51.878    51.171
amean          39.455    39.455    39.455
amin           38.987    38.997    38.952
amax           40.040    40.028    40.043
emean           0.241     0.236     0.233
emin            0.178     0.177     0.184
emax            0.292     0.298     0.280
imean          15.908    16.297    16.170
imin           13.425    13.170    14.279
imax           18.098    18.308    17.956
excite_mean     0.366     0.368     0.364
fracstop        1.000     1.000     1.000
cjmean          2.899     2.897     2.900

libcent 0       180.1     179.4     179.7
libamp  0       102.9      93.6     113.5
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        76.8     232.5      88.4
kozaiamp         86.6     180.0      82.3