Orbit Fit and Astrometric record for 14YH50

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: 14YH50    
# Created Wed Feb 20 02:10:24 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   73 observations of   73
# Arc:   7.21y
# First observation: 2010/11/09
#  Last observation: 2018/01/23
# Chi-squared of fit:    79.76 DOF:  140 RMS:  0.18
# Min/Max residuals:    -0.80    0.78
# Exact a, adot, b, bdot, g, gdot:
  1.432982E-05  2.377715E-02  1.070640E-05  1.821872E-02  2.593106E-02  2.180220E-03
# Covariance matrix:
  2.4826E-13 -6.3533E-14  4.3024E-14 -3.2006E-14  4.2805E-14 -1.9707E-13
 -6.3533E-14  4.1959E-14 -5.4416E-14  3.2349E-14  3.0012E-14  2.0701E-13
  4.3024E-14 -5.4416E-14  2.1316E-13 -7.1473E-14 -6.0410E-14 -3.1025E-13
 -3.2006E-14  3.2349E-14 -7.1473E-14  3.3317E-14  2.9424E-14  1.8202E-13
  4.2805E-14  3.0012E-14 -6.0410E-14  2.9424E-14  1.0047E-13  1.9611E-13
 -1.9707E-13  2.0701E-13 -3.1025E-13  1.8202E-13  1.9611E-13  1.1677E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   16.392708  123.438508    0.960107    0.066307   -0.225380  2455510.138066
# Heliocentric elements and errors
Epoch:              2455510.5000  =  2010/11/10
Mean Anomaly:            6.23939 +/-     0.004
Argument of Peri:       12.74658 +/-     0.008
Long of Asc Node:      102.10178 +/-     0.000
Inclination:            40.71087 +/-     0.000
Eccentricity:         0.31986332 +/-    0.0000
Semi-Major Axis:     56.70492728 +/-    0.0040
Time of Perihelion: 2452807.3570 +/-       1.7
Perihelion:          38.56710097 +/-    0.0036
Aphelion:            74.84275359 +/-    0.0058
Period (y)              427.0113 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.71089598 +/-    0.0002
Ecliptic Y           31.59614254 +/-    0.0004
Ecliptic Z           10.88382370 +/-    0.0001
Ecliptic XDOT        -0.00191770 +/-    0.0000
Ecliptic YDOT        -0.00164576 +/-    0.0000
Ecliptic ZDOT         0.00191034 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.79807129 +/-    0.0003
Geocenter to KBO     38.56376772 +/-    0.0005
# Hcoef:  6.29

The following table shows the complete astrometric record for 14YH50. 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 (14YH50) followed by the observatory code and reference code for the source of the astrometry.

2010 11  09.63730  08 41 24.174  +35 15 57.83  21.9G 14YH50    F51  C~2rYI      
2011 01  15.49061  08 37 24.685  +36 01 01.45  22.4G 14YH50    F51  C~2rYI      
2011 10  26.61118  08 48 57.780  +35 45 00.00  20.9G 14YH50    F51  C~2rYI      
2011 11  25.64995  08 49 03.655  +36 03 50.94  21.6G 14YH50    F51  C~2rYI      
2011 12  23.62846  08 47 33.095  +36 24 15.10  22.0G 14YH50    F51  C~2rYI      
2012 02  11.38979  08 42 41.514  +36 53 07.38  22.4G 14YH50    F51  C~2rYI      
2012 02  15.40474  08 42 17.326  +36 54 31.20  21.1G 14YH50    F51  C~2rYI      
2012 02  28.29897  08 41 04.960  +36 57 48.11  22.1G 14YH50    F51  C~2rYI      
2012 02  28.31093  08 41 04.915  +36 57 48.42  22.3G 14YH50    F51  C~2rYI      
2012 12  22.60925  08 55 40.657  +37 00 03.94  22.8G 14YH50    F51  C~2rYI      
2013 01  11.55070  08 53 56.809  +37 14 15.40  21.1G 14YH50    F51  C~2rYI      
2013 02  01.43603  08 51 48.200  +37 26 22.56  21.9G 14YH50    F51  C~2rYI      
2013 02  14.31430  08 50 28.313  +37 31 45.47  22.0r 14YH50    F51  C~2VW8      
2013 02  14.32635  08 50 28.258  +37 31 45.92  22.0r 14YH50    F51  C~2VW8      
2013 02  14.33979  08 50 28.187  +37 31 46.07  22.2g 14YH50    F51  C~2VW8      
2014 01  20.52408  09 01 19.866  +37 54 15.76  21.2G 14YH50    F51  C~2rYI      
2014 03  02.28561  08 57 13.119  +38 11 11.06  21.9G 14YH50    F51  C~2rYI      
2014 11  09.63708  09 13 18.740  +37 32 06.67  22.2G 14YH50    F51  C~2rYI      
2014 12  26.56993  09 11 54.958  +38 07 58.05  22.1G 14YH50    F51  C~2rYI      
2014 12  26.58261  09 11 54.922  +38 07 58.83  22.0w 14YH50    F51  C~1vXz      
2014 12  26.59569  09 11 54.870  +38 07 59.23  22.4w 14YH50    F51  C~1vXz      
2014 12  26.60837  09 11 54.812  +38 07 59.68  22.4w 14YH50    F51  C~1vXz      
2015 01  13.55320  09 10 23.198  +38 21 32.35  21.3i 14YH50    F51  C~1vXz      
2015 01  13.57704  09 10 23.073  +38 21 33.43  21.5i 14YH50    F51  C~1vXz      
2015 01  13.58888  09 10 23.005  +38 21 34.05  21.4i 14YH50    F51  C~1vXz      
2015 01  27.42358  09 08 59.880  +38 30 34.86  21.7i 14YH50    F51  C~1vXz      
2015 01  27.43607  09 08 59.792  +38 30 34.98  21.6i 14YH50    F51  C~1vXz      
2015 01  27.44856  09 08 59.714  +38 30 35.64  21.5i 14YH50    F51  C~1vXz      
2015 03  20.29329  09 04 07.656  +38 45 47.08  21.9G 14YH50    F51  C~2rYI      
2015 03  20.30540  09 04 07.617  +38 45 47.13  22.2G 14YH50    F51  C~2rYI      
2015 03  20.31756  09 04 07.555  +38 45 47.05  22.5G 14YH50    F51  C~2rYI      
2015 03  20.32975  09 04 07.518  +38 45 47.03  22.2G 14YH50    F51  C~2rYI      
2015 03  22.29989  09 03 59.789  +38 45 42.40  21.6G 14YH50    F51  C~2rYI      
2015 03  22.31203  09 03 59.734  +38 45 42.42  21.7G 14YH50    F51  C~2rYI      
2015 03  22.33645  09 03 59.652  +38 45 42.26  21.9G 14YH50    F51  C~2rYI      
2015 05  03.25076  09 02 59.125  +38 34 18.59  22.1G 14YH50    F51  C~2rYI      
2015 11  17.61572  09 21 35.593  +38 05 55.23  22.2G 14YH50    F51  C~2rYI      
2015 12  03.66865  09 21 25.458  +38 18 10.78  21.1G 14YH50    F51  C~2rYI      
2015 12  12.57310  09 21 06.136  +38 25 25.53  22.4G 14YH50    F51  C~2rYI      
2015 12  12.58436  09 21 06.114  +38 25 26.08  21.9G 14YH50    F51  C~2rYI      
2015 12  12.59568  09 21 06.070  +38 25 26.66  22.0G 14YH50    F51  C~2rYI      
2015 12  12.60705  09 21 06.049  +38 25 27.25  22.3G 14YH50    F51  C~2rYI      
2015 12  31.54462  09 19 55.897  +38 40 58.34  21.4G 14YH50    F51  C~2rYI      
2016 01  27.53087  09 17 26.522  +39 00 30.22  21.6G 14YH50    F51  C~2rYI      
2016 02  12.34329  09 15 47.386  +39 08 58.90  22.2G 14YH50    F51  C~2rYI      
2016 02  12.35476  09 15 47.319  +39 08 59.04  22.3G 14YH50    F51  C~2rYI      
2016 02  12.36751  09 15 47.232  +39 08 59.48  22.3G 14YH50    F51  C~2rYI      
2016 02  12.37897  09 15 47.155  +39 09 00.04  22.2G 14YH50    F51  C~2rYI      
2016 02  24.42619  09 14 33.577  +39 13 29.06  22.1G 14YH50    F51  C~2rYI      
2016 11  26.63194  09 29 51.203  +38 39 33.01  21.8G 14YH50    F51  C~2rYI      
2016 12  22.59397  09 28 55.135  +39 01 03.16  22.0G 14YH50    F51  C~2rYI      
2016 12  22.60596  09 28 55.096  +39 01 04.05  22.0G 14YH50    F51  C~2rYI      
2016 12  22.61793  09 28 55.038  +39 01 04.30  21.9G 14YH50    F51  C~2rYI      
2016 12  22.62989  09 28 54.994  +39 01 05.09  22.3G 14YH50    F51  C~2rYI      
2017 02  01.42130  09 25 21.214  +39 31 37.49  22.0G 14YH50    F51  C~2rYI      
2017 11  19.61184  09 38 10.269  +38 57 56.49  22.4G 14YH50    F51  C~2rYI      
2017 11  19.62285  09 38 10.264  +38 57 57.01  22.2G 14YH50    F51  C~2rYI      
2017 12  13.53847  09 37 49.003  +39 17 23.67  22.1G 14YH50    F51  C~2rYI      
2017 12  13.54948  09 37 48.972  +39 17 24.05  22.2G 14YH50    F51  C~2rYI      
2017 12  13.56052  09 37 48.944  +39 17 24.62  22.1G 14YH50    F51  C~2rYI      
2017 12  13.57162  09 37 48.905  +39 17 25.04  23.0G 14YH50    F51  C~2rYI      
2017 12  20.46488  09 37 29.862  +39 23 21.62  22.2R 14YH50    G37  C~2VW8      
2017 12  20.52488  09 37 29.656  +39 23 24.90        14YH50    G37  C~2VW8      
2018 01  09.51968  09 36 06.593  +39 40 17.46  22.5G 14YH50    F51  C~2rYI      
2018 01  20.44778  09 35 07.444  +39 48 43.57  22.4G 14YH50    F51  C~2rYI      
2018 01  20.45166  09 35 07.416  +39 48 43.71  22.2G 14YH50    F51  C~2rYI      
2018 01  20.45894  09 35 07.383  +39 48 44.00  22.2G 14YH50    F51  C~2rYI      
2018 01  20.46291  09 35 07.356  +39 48 44.20  22.3G 14YH50    F51  C~2rYI      
2018 01  20.47020  09 35 07.310  +39 48 44.47  22.1G 14YH50    F51  C~2rYI      
2018 01  20.47406  09 35 07.286  +39 48 44.62  22.3G 14YH50    F51  C~2rYI      
2018 01  20.48140  09 35 07.241  +39 48 45.07  22.1G 14YH50    F51  C~2rYI      
2018 01  20.48527  09 35 07.225  +39 48 45.23  22.2G 14YH50    F51  C~2rYI      
2018 01  23.44907  09 34 49.964  +39 50 53.03  22.4G 14YH50    F51  C~2rYI      

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     0.07       0.00     0.07
  2   0.1830      0.00     0.38       0.00    -0.01
  3   0.9609      0.00    -0.01       0.00     0.22
  4   1.0432      0.00    -0.69       0.00     0.01
  5   1.1198      0.00    -0.05       0.00     0.23
  6   1.2560      0.00    -0.06       0.00    -0.29
  7   1.2670      0.00    -0.27       0.00    -0.13
  8   1.3023      0.00    -0.22       0.00    -0.06
  9   1.3023      0.00     0.06       0.00     0.11
 10   2.1190      0.00     0.35       0.00     0.78
 11   2.1736      0.00     0.17       0.00    -0.80
 12   2.2308      0.00    -0.09       0.00     0.20
 13   2.2661      0.00    -0.11       0.00    -0.23
 14   2.2661      0.00     0.18       0.00    -0.04
 15   2.2661      0.00     0.35       0.00    -0.17
 16   3.1975      0.00    -0.15       0.00     0.23
 17   3.3091      0.00    -0.08       0.00    -0.33
 18   4.0000      0.00    -0.46       0.00     0.24
 19   4.1285      0.00    -0.20       0.00     0.07
 20   4.1285      0.00     0.11       0.00     0.25
 21   4.1286      0.00     0.22       0.00     0.03
 22   4.1286      0.00     0.20       0.00    -0.11
 23   4.1777      0.00    -0.02       0.00     0.01
 24   4.1778      0.00     0.18       0.00     0.09
 25   4.1778      0.00     0.19       0.00     0.21
 26   4.2157      0.00     0.05       0.00     0.27
 27   4.2157      0.00    -0.08       0.00    -0.06
 28   4.2158      0.00    -0.06       0.00     0.16
 29   4.3577      0.00    -0.07       0.00    -0.04
 30   4.3577      0.00     0.10       0.00     0.03
 31   4.3578      0.00    -0.08       0.00    -0.03
 32   4.3578      0.00     0.12       0.00    -0.03
 33   4.3632      0.00     0.02       0.00    -0.02
 34   4.3632      0.00    -0.09       0.00     0.04
 35   4.3633      0.00     0.13       0.00    -0.04
 36   4.4781      0.00    -0.63       0.00    -0.02
 37   5.0212      0.00     0.13       0.00    -0.22
 38   5.0651      0.00     0.14       0.00    -0.19
 39   5.0895      0.00     0.01       0.00    -0.09
 40   5.0895      0.00     0.15       0.00    -0.10
 41   5.0896      0.00    -0.03       0.00    -0.08
 42   5.0896      0.00     0.13       0.00    -0.05
 43   5.1414      0.00     0.05       0.00     0.07
 44   5.2153      0.00    -0.03       0.00    -0.09
 45   5.2586      0.00    -0.02       0.00    -0.17
 46   5.2586      0.00     0.07       0.00    -0.35
 47   5.2587      0.00    -0.02       0.00    -0.25
 48   5.2587      0.00    -0.08       0.00    -0.00
 49   5.2917      0.00     0.06       0.00     0.12
 50   6.0479      0.00     0.09       0.00    -0.07
 51   6.1190      0.00     0.01       0.00     0.02
 52   6.1190      0.00     0.10       0.00     0.30
 53   6.1190      0.00    -0.10       0.00    -0.05
 54   6.1191      0.00    -0.09       0.00     0.14
 55   6.2308      0.00    -0.03       0.00     0.08
 56   7.0280      0.00     0.10       0.00    -0.09
 57   7.0280      0.00    -0.06       0.00    -0.06
 58   7.0935      0.00     0.09       0.00     0.20
 59   7.0935      0.00     0.03       0.00     0.01
 60   7.0936      0.00     0.02       0.00     0.01
 61   7.0936      0.00    -0.15       0.00    -0.14
 62   7.1125      0.00     0.06       0.00    -0.03
 63   7.1126      0.00    -0.10       0.00     0.15
 64   7.1674      0.00    -0.14       0.00     0.00
 65   7.1973      0.00     0.03       0.00     0.04
 66   7.1973      0.00    -0.05       0.00     0.01
 67   7.1973      0.00     0.10       0.00    -0.02
 68   7.1973      0.00     0.04       0.00     0.00
 69   7.1974      0.00    -0.01       0.00    -0.05
 70   7.1974      0.00    -0.03       0.00    -0.07
 71   7.1974      0.00    -0.06       0.00     0.06
 72   7.1974      0.00     0.04       0.00     0.05
 73   7.2055      0.00    -0.23       0.00     0.05

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.

14YH50    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        57.051    57.051    57.051
ecceobj         0.323     0.323     0.323
incobj         40.658    40.658    40.658
qmin           37.309    37.308    37.309
qmax           77.430    77.432    77.427
amean          56.933    56.934    56.933
amin           56.351    56.351    56.352
amax           57.681    57.680    57.682
emean           0.324     0.324     0.324
emin            0.313     0.313     0.313
emax            0.343     0.343     0.343
imean          39.045    39.041    39.053
imin           38.641    38.640    38.641
imax           39.320    39.320    39.332
excite_mean     0.708     0.708     0.708
fracstop        1.000     1.000     1.000
cjmean          2.550     2.550     2.550

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       121.9     121.7     122.1
kozaiamp        107.6     107.2     108.0