Orbit Fit and Astrometric record for 14YE50

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: 14YE50    
# Created Sat Oct 21 01:38:32 2017
# Orbit generated from Bernstein formalism
# Fitting   30 observations of   30
# Arc:   3.14y
# First observation: 2012/01/26
#  Last observation: 2015/03/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000168   0.019029   0.000118   0.009597   0.022168   0.000000
# Chi-squared of fit:     6.19 DOF:   54 RMS:  0.08
# Min/Max residuals:    -0.22    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.410597E-05  1.951246E-02  7.132589E-06  9.873352E-03  2.231185E-02  7.087930E-03
# Covariance matrix:
  3.0775E-13 -2.8897E-13  4.0952E-14 -1.0758E-13 -1.7068E-13 -3.2938E-12
 -2.8897E-13  6.6732E-13 -1.2787E-13  3.3597E-13  4.9492E-13  1.0290E-11
  4.0952E-14 -1.2787E-13  2.6812E-13 -1.5531E-13 -9.6158E-14 -2.1034E-12
 -1.0758E-13  3.3597E-13 -1.5531E-13  2.1969E-13  2.5228E-13  5.5272E-12
 -1.7068E-13  4.9492E-13 -9.6158E-14  2.5228E-13  6.0658E-13  7.7075E-12
 -3.2938E-12  1.0290E-11 -2.1034E-12  5.5272E-12  7.7075E-12  1.6931E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.012889  121.081672   -0.083796   -0.000198   -0.981721  2455953.001996
# Heliocentric elements and errors
Epoch:              2455950.5000  =  2012/01/24
Mean Anomaly:           34.90332 +/-     0.030
Argument of Peri:      287.37123 +/-     0.030
Long of Asc Node:      121.20718 +/-     0.000
Inclination:            26.84110 +/-     0.001
Eccentricity:         0.38306973 +/-    0.0006
Semi-Major Axis:     59.82577079 +/-    0.0327
Time of Perihelion: 2439563.6654 +/-       3.7
Perihelion:          36.90832893 +/-    0.0423
Aphelion:            82.74321264 +/-    0.0585
Period (y)              462.7439 +/-      0.38
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -23.71435222 +/-    0.0008
Ecliptic Y           39.18328001 +/-    0.0013
Ecliptic Z           -0.00978205 +/-    0.0000
Ecliptic XDOT        -0.00250423 +/-    0.0000
Ecliptic YDOT        -0.00048656 +/-    0.0000
Ecliptic ZDOT         0.00121144 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.80065534 +/-    0.0012
Geocenter to KBO     44.81923905 +/-    0.0016
# Hcoef:  5.40

The following table shows the complete astrometric record for 14YE50. 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 (14YE50) followed by the observatory code and reference code for the source of the astrometry.

2012 01  26.50123  08 13 12.635  +19 54 18.26  21.5i 14YE50    F51  C~1vXz      
2012 01  26.51415  08 13 12.581  +19 54 18.61  21.4i 14YE50    F51  C~1vXz      
2012 01  26.52699  08 13 12.511  +19 54 18.92  21.7r 14YE50    F51  C~1vXz      
2012 01  26.53928  08 13 12.459  +19 54 19.11  21.8r 14YE50    F51  C~1vXz      
2013 02  12.28801  08 17 01.955  +20 18 14.81  22.1w 14YE50    F51  C~1vXz      
2013 02  12.30119  08 17 01.904  +20 18 15.25  22.1w 14YE50    F51  C~1vXz      
2013 02  12.31442  08 17 01.838  +20 18 15.52  22.0w 14YE50    F51  C~1vXz      
2013 02  12.32763  08 17 01.784  +20 18 15.84  21.8w 14YE50    F51  C~1vXz      
2014 01  01.41109  08 25 18.357  +20 20 54.24  21.8w 14YE50    F51  C~1vXz      
2014 01  01.42492  08 25 18.287  +20 20 54.62  21.9w 14YE50    F51  C~1vXz      
2014 01  01.43877  08 25 18.239  +20 20 54.99  22.0w 14YE50    F51  C~1vXz      
2014 01  01.45276  08 25 18.171  +20 20 55.23  22.1w 14YE50    F51  C~1vXz      
2014 12  21.59272  08 31 02.647  +20 33 26.52  22.1w 14YE50    F51  C~1vXz      
2014 12  21.60628  08 31 02.604  +20 33 26.77  22.3w 14YE50    F51  C~1vXz      
2014 12  21.62002  08 31 02.542  +20 33 27.44  22.2w 14YE50    F51  C~1vXz      
2015 01  16.54218  08 29 14.769  +20 42 29.73  22.0w 14YE50    F51  C~1vXz      
2015 01  16.55446  08 29 14.715  +20 42 29.96  21.9w 14YE50    F51  C~1vXz      
2015 01  16.56675  08 29 14.657  +20 42 30.36  21.9w 14YE50    F51  C~1vXz      
2015 02  16.28515  08 26 55.924  +20 53 10.59  22.3w 14YE50    F51  C~1vXz      
2015 02  16.29745  08 26 55.872  +20 53 10.84  22.3w 14YE50    F51  C~1vXz      
2015 02  16.30980  08 26 55.816  +20 53 11.19  22.1w 14YE50    F51  C~1vXz      
2015 02  16.32222  08 26 55.760  +20 53 11.46  22.4w 14YE50    F51  C~1vXz      
2015 03  16.37090  08 25 17.921  +21 00 39.52  22.1w 14YE50    F51  C~1vXz      
2015 03  16.38321  08 25 17.891  +21 00 39.66  22.3w 14YE50    F51  C~1vXz      
2015 03  16.39549  08 25 17.857  +21 00 39.82  22.1w 14YE50    F51  C~1vXz      
2015 03  16.40769  08 25 17.825  +21 00 40.04  22.2w 14YE50    F51  C~1vXz      
2015 03  17.34731  08 25 15.417  +21 00 51.42  22.1w 14YE50    F51  C~1vXz      
2015 03  17.35974  08 25 15.389  +21 00 51.77  22.2w 14YE50    F51  C~1vXz      
2015 03  17.37223  08 25 15.357  +21 00 51.82  22.2w 14YE50    F51  C~1vXz      
2015 03  17.38481  08 25 15.325  +21 00 51.93  22.4w 14YE50    F51  C~1vXz      

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    -0.06       0.00    -0.03
  2   0.0000     -0.82     0.03       0.18     0.08
  3   0.0001     -1.85    -0.10       0.26     0.10
  4   0.0001     -2.61     0.00       0.29     0.06
  5   1.0480   2832.71     0.05    2115.66    -0.22
  6   1.0480   2831.91     0.09    2115.93    -0.02
  7   1.0481   2830.94    -0.02    2115.98    -0.03
  8   1.0481   2830.13     0.02    2116.12     0.04
  9   1.9327   9598.96     0.11    3879.88    -0.11
 10   1.9327   9597.91    -0.06    3880.02    -0.06
 11   1.9328   9597.17     0.08    3880.22     0.06
 12   1.9328   9596.18    -0.02    3880.23    -0.02
 13   2.9024  14132.78    -0.02    5780.35    -0.20
 14   2.9024  14132.13     0.07    5780.44    -0.19
 15   2.9024  14131.11    -0.19    5780.88     0.16
 16   2.9734  12524.55    -0.02    5937.74     0.01
 17   2.9735  12523.75     0.03    5937.78    -0.01
 18   2.9735  12522.86    -0.02    5937.97     0.11
 19   3.0576  10473.50     0.10    6090.50    -0.05
 20   3.0576  10472.73     0.10    6090.56    -0.04
 21   3.0577  10471.88     0.03    6090.72     0.06
 22   3.0577  10471.05    -0.02    6090.79     0.08
 23   3.1345   9029.49    -0.07    6199.66     0.03
 24   3.1345   9029.05    -0.03    6199.70     0.02
 25   3.1345   9028.55    -0.05    6199.74     0.03
 26   3.1346   9028.06    -0.06    6199.85     0.10
 27   3.1372   8992.53    -0.03    6202.92    -0.09
 28   3.1372   8992.06    -0.02    6203.17     0.12
 29   3.1372   8991.61     0.01    6203.11     0.02
 30   3.1373   8991.15     0.03    6203.11    -0.01

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.

14YE50    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        60.014    60.107    59.921
ecceobj         0.385     0.387     0.383
incobj         26.847    26.848    26.847
qmin           36.268    36.226    36.301
qmax           83.929    84.216    83.888
amean          59.588    59.666    59.501
amin           58.973    58.999    58.838
amax           60.413    60.530    60.390
emean           0.372     0.373     0.370
emin            0.355     0.356     0.352
emax            0.390     0.392     0.389
imean          25.753    25.778    25.764
imin           25.146    25.145    25.149
imax           26.398    26.449    26.416
excite_mean     0.572     0.573     0.571
fracstop        1.000     1.000     1.000
cjmean          2.859     2.858     2.859

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       187.8     185.6     188.0
kozaiamp        180.0     180.0     180.0