Orbit Fit and Astrometric record for 14YD50

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: 14YD50    
# Created Fri Dec  3 02:13:08 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     74 observations of     74
# Arc:   8.06y
# First observation: 2013/01/21
#  Last observation: 2021/02/11
# Chi-squared of fit:    26.84 DOF:    142 RMS:  0.11
# Min/Max residuals:    -0.29    0.29
# Exact a, adot, b, bdot, g, gdot:
  2.167796E-05  4.135933E-02 -9.327132E-07 -2.184663E-03  3.016324E-02 -5.136784E-03
# Covariance matrix:
  3.3736E-13 -1.4728E-13 -1.3727E-14  6.7341E-15  8.1436E-15 -3.0927E-13
 -1.4728E-13  7.3038E-14  7.1918E-15 -3.5696E-15 -1.8077E-15  1.6418E-13
 -1.3727E-14  7.1918E-15  9.2311E-14 -1.7451E-14 -2.6860E-15  1.6895E-14
  6.7341E-15 -3.5696E-15 -1.7451E-14  4.1938E-15  1.1267E-16 -8.4883E-15
  8.1436E-15 -1.8077E-15 -2.6860E-15  1.1267E-16  7.2922E-14  1.8309E-15
 -3.0927E-13  1.6418E-13  1.6895E-14 -8.4883E-15  1.8309E-15  3.9099E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.319942  111.516378   -0.171021   -0.173286   -0.952025  2456313.970718
# Heliocentric elements and errors
Epoch:              2456314.5000  =  2013/01/22
Mean Anomaly:          357.41728 +/-     0.001
Argument of Peri:      270.85177 +/-     0.003
Long of Asc Node:      218.13420 +/-     0.000
Inclination:            10.44051 +/-     0.000
Eccentricity:         0.66416063 +/-    0.0000
Semi-Major Axis:     99.80415666 +/-    0.0146
Time of Perihelion: 2458927.2371 +/-      79.5
Perihelion:          33.51816469 +/-    0.0067
Aphelion:           166.09014863 +/-    0.0248
Period (y)              997.0826 +/-      0.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -12.47622180 +/-    0.0001
Ecliptic Y           31.18337167 +/-    0.0003
Ecliptic Z           -5.93922437 +/-    0.0001
Ecliptic XDOT        -0.00331739 +/-    0.0000
Ecliptic YDOT        -0.00183555 +/-    0.0000
Ecliptic ZDOT        -0.00011143 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   34.10775510 +/-    0.0003
Geocenter to KBO     33.15306661 +/-    0.0003
# Hcoef:  6.70

The following table shows the complete astrometric record for 14YD50. 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 (14YD50) followed by the observatory code and reference code for the source of the astrometry.

2013 01  21.46994  07 26 25.888  +11 31 11.72  22.1G 14YD50    F51  C~2kRF      
2013 01  21.48288  07 26 25.818  +11 31 11.80  22.1G 14YD50    F51  C~2kRF      
2014 12  18.57381  07 48 42.165  +10 25 32.89  22.0r 14YD50    F51  C~1vXz      
2014 12  18.58490  07 48 42.107  +10 25 33.01  21.8r 14YD50    F51  C~1vXz      
2014 12  18.59598  07 48 42.066  +10 25 32.70  22.1r 14YD50    F51  C~1vXz      
2015 01  21.45551  07 45 36.276  +10 30 56.45  22.0G 14YD50    F51  C~2lVn      
2015 01  21.46834  07 45 36.194  +10 30 56.92  21.7G 14YD50    F51  C~2lVn      
2015 01  21.49412  07 45 36.043  +10 30 57.45  20.9G 14YD50    F51  C~2lVn      
2015 01  21.49688  07 45 36.029  +10 30 57.25  22.0G 14YD50    F51  C~2lVn      
2015 02  18.23747  07 43 11.692  +10 39 52.24  22.0w 14YD50    F51  C~1vXz      
2015 02  18.24951  07 43 11.635  +10 39 52.24  22.2w 14YD50    F51  C~1vXz      
2015 02  18.26148  07 43 11.570  +10 39 52.30  22.3w 14YD50    F51  C~1vXz      
2015 02  19.25104  07 43 07.254  +10 40 13.99  22.2w 14YD50    F51  C~1vXz      
2015 02  19.26307  07 43 07.184  +10 40 14.05  21.9w 14YD50    F51  C~1vXz      
2015 02  19.27520  07 43 07.134  +10 40 14.39  22.1w 14YD50    F51  C~1vXz      
2015 03  18.29472  07 41 42.898  +10 49 59.02  21.7w 14YD50    F51  C~1vXz      
2015 03  18.30729  07 41 42.893  +10 49 59.30  21.9w 14YD50    F51  C~1vXz      
2015 03  18.31964  07 41 42.864  +10 49 59.39  21.9w 14YD50    F51  C~1vXz      
2015 03  18.33208  07 41 42.840  +10 49 59.70  22.0w 14YD50    F51  C~1vXz      
2015 03  19.29874  07 41 41.228  +10 50 19.50  22.4G 14YD50    F51  C~2lVn      
2015 03  19.31121  07 41 41.203  +10 50 19.70  21.9G 14YD50    F51  C~2lVn      
2015 03  19.32361  07 41 41.187  +10 50 20.09  22.2G 14YD50    F51  C~2lVn      
2015 03  19.33605  07 41 41.154  +10 50 20.35  22.0G 14YD50    F51  C~2lVn      
2016 01  12.34072  07 56 07.234  +09 56 27.97  21.8G 14YD50    F51  C~2kRF      
2016 01  12.35253  07 56 07.168  +09 56 28.29  21.7G 14YD50    F51  C~2kRF      
2016 01  12.36436  07 56 07.090  +09 56 28.31  21.9G 14YD50    F51  C~2kRF      
2016 01  12.37615  07 56 07.024  +09 56 28.58  22.2G 14YD50    F51  C~2kRF      
2016 01  31.31961  07 54 19.485  +10 01 42.87  21.7G 14YD50    F51  C~2kRF      
2016 01  31.33157  07 54 19.421  +10 01 43.21  22.1G 14YD50    F51  C~2kRF      
2016 01  31.34354  07 54 19.345  +10 01 43.53  21.5G 14YD50    F51  C~2kRF      
2016 01  31.35571  07 54 19.282  +10 01 43.74  21.7G 14YD50    F51  C~2kRF      
2016 11  10.57635  08 09 36.018  +09 24 29.36  21.9G 14YD50    F51  C~2kRF      
2016 11  10.58800  08 09 36.012  +09 24 29.13  21.9G 14YD50    F51  C~2kRF      
2016 11  10.59966  08 09 35.997  +09 24 28.91  21.8G 14YD50    F51  C~2kRF      
2016 11  10.61123  08 09 35.996  +09 24 28.86  21.8G 14YD50    F51  C~2kRF      
2017 01  26.37361  08 04 21.374  +09 27 04.09  21.7G 14YD50    F51  C~2kRF      
2017 01  26.38443  08 04 21.314  +09 27 04.53  21.9G 14YD50    F51  C~2kRF      
2017 01  26.39521  08 04 21.255  +09 27 04.56  21.9G 14YD50    F51  C~2kRF      
2017 01  26.40606  08 04 21.198  +09 27 04.79  21.6G 14YD50    F51  C~2kRF      
2017 02  03.45822  08 03 36.351  +09 29 47.54  22.1G 14YD50    F51  C~2kRF      
2017 02  03.46964  08 03 36.296  +09 29 47.68  21.8G 14YD50    F51  C~2kRF      
2017 02  03.48101  08 03 36.213  +09 29 48.04  22.3G 14YD50    F51  C~2kRF      
2017 02  03.49238  08 03 36.174  +09 29 48.24  22.2G 14YD50    F51  C~2kRF      
2017 11  22.54741  08 18 48.754  +08 47 17.66  22.3G 14YD50    F51  C~2kRF      
2017 11  22.56902  08 18 48.714  +08 47 17.24  22.4G 14YD50    F51  C~2kRF      
2017 11  22.57993  08 18 48.689  +08 47 17.12  22.0G 14YD50    F51  C~2kRF      
2017 12  20.47225  08 17 18.285  +08 45 08.49  21.9R 14YD50    G37  C~4Num      
2017 12  20.51363  08 17 18.081  +08 45 08.71        14YD50    G37  C~4Num      
2017 12  24.44980  08 16 59.955  +08 45 24.69  21.8G 14YD50    F51  C~2kRF      
2017 12  24.46135  08 16 59.897  +08 45 24.72  22.4G 14YD50    F51  C~2kRF      
2017 12  24.47299  08 16 59.838  +08 45 24.87  21.9G 14YD50    F51  C~2kRF      
2017 12  24.48456  08 16 59.787  +08 45 24.84  21.7G 14YD50    F51  C~2kRF      
2018 01  10.44546  08 15 31.714  +08 48 04.16  21.5G 14YD50    F51  C~2kRF      
2018 01  10.45963  08 15 31.640  +08 48 04.60  21.6G 14YD50    F51  C~2kRF      
2018 01  10.47376  08 15 31.567  +08 48 04.93  21.7G 14YD50    F51  C~2kRF      
2018 01  10.48792  08 15 31.483  +08 48 04.99  21.8G 14YD50    F51  C~2kRF      
2018 01  12.54278  08 15 20.045  +08 48 33.58  22.0G 14YD50    F51  C~2kRF      
2018 01  12.55616  08 15 19.975  +08 48 33.79  21.9G 14YD50    F51  C~2kRF      
2018 01  12.56959  08 15 19.896  +08 48 33.95  21.7G 14YD50    F51  C~2kRF      
2018 01  12.58306  08 15 19.828  +08 48 34.08  21.6G 14YD50    F51  C~2kRF      
2020 03  22.32437  08 29 07.364  +08 04 20.80  21.7w 14YD50    F52  C~3nOI      
2020 03  22.33685  08 29 07.329  +08 04 21.45  21.7w 14YD50    F52  C~3nOI      
2020 03  22.34930  08 29 07.305  +08 04 21.63  21.7w 14YD50    F52  C~3nOI      
2020 12  22.47720  08 45 47.808  +06 56 00.32  21.9w 14YD50    F51  C~4Num      
2020 12  22.49001  08 45 47.746  +06 56 00.02  22.2w 14YD50    F51  C~4Num      
2020 12  22.50288  08 45 47.711  +06 56 00.27  22.0w 14YD50    F51  C~4Num      
2020 12  22.51579  08 45 47.663  +06 56 00.51  22.0w 14YD50    F51  C~4Num      
2021 01  11.412480 08 44 13.530  +06 58 58.62  21.7G 14YD50    G37  C~4UFi      
2021 01  11.452810 08 44 13.311  +06 58 59.18        14YD50    G37  C~4UFi      
2021 01  11.493360 08 44 13.096  +06 58 59.67        14YD50    G37  C~4UFi      
2021 02  11.364304 08 41 22.882  +07 09 47.33  21.8w 14YD50    F51  C~4ZFE      
2021 02  11.378525 08 41 22.792  +07 09 47.86  21.7w 14YD50    F51  C~4ZFE      
2021 02  11.392753 08 41 22.716  +07 09 48.20  21.8w 14YD50    F51  C~4ZFE      
2021 02  11.407041 08 41 22.624  +07 09 48.55  21.6w 14YD50    F51  C~4ZFE      

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    -0.04
     2   0.0000      0.00     0.05       0.00    -0.15
     3   1.9058      0.00     0.09       0.00    -0.01
     4   1.9059      0.00     0.04       0.00     0.09
     5   1.9059      0.00     0.24       0.00    -0.24
     6   1.9986      0.00     0.00       0.00    -0.15
     7   1.9986      0.00    -0.11       0.00     0.11
     8   1.9987      0.00    -0.13       0.00     0.24
     9   1.9987      0.00    -0.10       0.00    -0.01
    10   2.0747      0.00    -0.03       0.00     0.29
    11   2.0747      0.00    -0.07       0.00     0.03
    12   2.0747      0.00    -0.23       0.00    -0.17
    13   2.0774      0.00     0.15       0.00     0.15
    14   2.0775      0.00    -0.10       0.00    -0.05
    15   2.0775      0.00    -0.04       0.00     0.03
    16   2.1515      0.00    -0.14       0.00     0.13
    17   2.1515      0.00     0.13       0.00     0.15
    18   2.1515      0.00     0.04       0.00    -0.02
    19   2.1516      0.00     0.02       0.00     0.04
    20   2.1542      0.00     0.05       0.00    -0.04
    21   2.1543      0.00    -0.00       0.00    -0.09
    22   2.1543      0.00     0.07       0.00     0.04
    23   2.1543      0.00    -0.10       0.00     0.05
    24   2.9730      0.00    -0.00       0.00    -0.08
    25   2.9730      0.00     0.03       0.00     0.08
    26   2.9730      0.00    -0.11       0.00    -0.06
    27   2.9730      0.00    -0.08       0.00     0.05
    28   3.0249      0.00    -0.01       0.00    -0.11
    29   3.0249      0.00     0.03       0.00    -0.00
    30   3.0250      0.00    -0.10       0.00     0.08
    31   3.0250      0.00    -0.02       0.00     0.06
    32   3.8032      0.00    -0.05       0.00    -0.07
    33   3.8032      0.00     0.01       0.00    -0.10
    34   3.8032      0.00    -0.07       0.00    -0.12
    35   3.8033      0.00     0.07       0.00     0.02
    36   4.0134      0.00     0.09       0.00    -0.01
    37   4.0135      0.00     0.12       0.00     0.22
    38   4.0135      0.00     0.17       0.00     0.04
    39   4.0135      0.00     0.25       0.00     0.07
    40   4.0356      0.00    -0.06       0.00     0.00
    41   4.0356      0.00     0.07       0.00    -0.10
    42   4.0356      0.00    -0.24       0.00     0.02
    43   4.0357      0.00     0.12       0.00    -0.02
    44   4.8353      0.00    -0.02       0.00     0.09
    45   4.8353      0.00     0.01       0.00    -0.06
    46   4.8353      0.00    -0.05       0.00    -0.05
    47   4.9117      0.00     0.04       0.00     0.01
    48   4.9118      0.00    -0.20       0.00     0.11
    49   4.9226      0.00    -0.01       0.00    -0.04
    50   4.9226      0.00    -0.04       0.00    -0.07
    51   4.9227      0.00    -0.08       0.00     0.02
    52   4.9227      0.00    -0.01       0.00    -0.07
    53   4.9691      0.00    -0.14       0.00    -0.29
    54   4.9692      0.00    -0.05       0.00    -0.04
    55   4.9692      0.00     0.06       0.00     0.10
    56   4.9692      0.00    -0.01       0.00    -0.03
    57   4.9749      0.00     0.04       0.00    -0.03
    58   4.9749      0.00     0.13       0.00    -0.01
    59   4.9749      0.00     0.09       0.00    -0.04
    60   4.9750      0.00     0.22       0.00    -0.11
    61   7.1646      0.00    -0.03       0.00    -0.19
    62   7.1646      0.00    -0.09       0.00     0.14
    63   7.1646      0.00     0.01       0.00     0.01
    64   7.9179      0.00    -0.08       0.00     0.16
    65   7.9179      0.00    -0.21       0.00    -0.18
    66   7.9180      0.00     0.07       0.00     0.03
    67   7.9180      0.00     0.16       0.00     0.22
    68   7.9725      0.00     0.04       0.00     0.03
    69   7.9726      0.00    -0.01       0.00     0.01
    70   7.9727      0.00     0.02       0.00    -0.08
    71   8.0572      0.00     0.23       0.00    -0.10
    72   8.0572      0.00     0.05       0.00     0.06
    73   8.0573      0.00     0.09       0.00     0.02
    74   8.0573      0.00    -0.12       0.00     0.00

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.

14YD50    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        99.364    99.362    99.365
ecceobj         0.662     0.662     0.662
incobj         10.426    10.426    10.426
qmin           32.677    32.668    32.344
qmax          171.720   170.834   168.196
amean          96.439    95.776    95.685
amin           88.991    87.981    89.351
amax          102.692   102.612   100.896
emean           0.648     0.645     0.647
emin            0.614     0.606     0.620
emax            0.672     0.669     0.667
imean          12.133    12.550    11.849
imin           10.789    11.037    10.009
imax           13.469    13.979    13.577
excite_mean     0.681     0.681     0.679
fracstop        1.000     1.000     1.000
cjmean          2.976     2.974     2.974

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       201.2     189.2     186.7
kozaiamp        180.0     180.0     180.0