Orbit Fit and Astrometric record for 14KX101

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: 14KX101   
# Created Sat Dec  4 02:12:29 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     56 observations of     56
# Arc:   7.90y
# First observation: 2010/05/19
#  Last observation: 2018/04/12
# Chi-squared of fit:    49.68 DOF:    106 RMS:  0.17
# Min/Max residuals:    -0.48    0.68
# Exact a, adot, b, bdot, g, gdot:
  1.947741E-05  4.296332E-02  3.572490E-07 -7.088959E-04  3.401339E-02  2.366215E-03
# Covariance matrix:
  3.7408E-13 -1.5461E-13 -4.0900E-15  2.2346E-15 -3.6790E-14 -3.4658E-13
 -1.5461E-13  9.2412E-14  3.9349E-15 -1.6891E-15  5.5505E-14  2.5282E-13
 -4.0900E-15  3.9349E-15  1.9514E-13 -3.8992E-14  5.5981E-15  1.2266E-14
  2.2346E-15 -1.6891E-15 -3.8992E-14  9.1129E-15 -1.3650E-15 -5.1510E-15
 -3.6790E-14  5.5505E-14  5.5981E-15 -1.3650E-15  1.2428E-13  1.7802E-13
 -3.4658E-13  2.5282E-13  1.2266E-14 -5.1510E-15  1.7802E-13  7.6807E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.020991 -126.955627   -0.085385    0.070659   -1.005999  2455335.870656
# Heliocentric elements and errors
Epoch:              2455336.5000  =  2010/05/20
Mean Anomaly:           10.21029 +/-     0.004
Argument of Peri:       86.67393 +/-     0.006
Long of Asc Node:      129.54962 +/-     0.002
Inclination:             4.00083 +/-     0.000
Eccentricity:         0.23750748 +/-    0.0000
Semi-Major Axis:     39.54382202 +/-    0.0020
Time of Perihelion: 2452760.4626 +/-       0.9
Perihelion:          30.15186846 +/-    0.0020
Aphelion:            48.93577558 +/-    0.0028
Period (y)              248.6716 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -18.16531146 +/-    0.0002
Ecliptic Y          -24.29557479 +/-    0.0002
Ecliptic Z            2.06165425 +/-    0.0000
Ecliptic XDOT         0.00264853 +/-    0.0000
Ecliptic YDOT        -0.00222812 +/-    0.0000
Ecliptic ZDOT        -0.00004361 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   30.40562296 +/-    0.0002
Geocenter to KBO     29.40019080 +/-    0.0003
# Hcoef:  7.52

The following table shows the complete astrometric record for 14KX101. 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 (14KX101) followed by the observatory code and reference code for the source of the astrometry.

2010 05  19.36989  15 26 46.913  -14 38 24.28  22.2G 14KX101   F51  C~2rY5      
2010 08  09.24503  15 21 51.149  -14 27 47.70  21.6G 14KX101   F51  C~2rY5      
2011 01  30.62339  15 41 07.865  -15 41 11.68  23.4G 14KX101   F51  C~2rY5      
2011 07  15.29594  15 31 50.183  -15 03 45.94  21.4G 14KX101   F51  C~2rY5      
2011 07  19.27128  15 31 40.582  -15 03 40.96  23.6G 14KX101   F51  C~2rY5      
2011 08  18.27201  15 31 30.663  -15 07 09.95  23.3G 14KX101   F51  C~2rY5      
2012 05  21.44889  15 46 07.968  -15 51 34.57  22.0G 14KX101   F51  C~2rY5      
2013 04  15.53499  15 59 29.096  -16 37 33.62  22.3G 14KX101   F51  C~2rY5      
2013 05  08.48233  15 57 20.407  -16 30 07.79  20.8G 14KX101   F51  C~2rY5      
2013 05  20.42939  15 56 04.607  -16 26 14.93  22.0G 14KX101   F51  C~2rY5      
2013 06  04.39636  15 54 29.388  -16 21 47.56  22.4w 14KX101   F51  C~1vXX      
2013 06  04.41100  15 54 29.306  -16 21 47.07  22.4w 14KX101   F51  C~1vXX      
2013 06  04.42563  15 54 29.213  -16 21 46.88  22.2w 14KX101   F51  C~1vXX      
2013 08  18.26878  15 50 29.052  -16 17 07.21  21.3G 14KX101   F51  C~2rY5      
2014 05  23.41263  16 05 35.039  -16 57 46.52  22.3w 14KX101   F51  C~1vXX      
2014 05  23.43838  16 05 34.872  -16 57 46.02  22.4w 14KX101   F51  C~1vXX      
2014 05  23.45125  16 05 34.793  -16 57 45.01  22.7w 14KX101   F51  C~1vXX      
2014 05  28.43016  16 05 02.712  -16 56 20.05  22.4w 14KX101   F51  C~1vXX      
2014 05  28.44077  16 05 02.643  -16 56 20.09  22.3w 14KX101   F51  C~1vXX      
2014 05  28.45138  16 05 02.572  -16 56 19.69  22.0w 14KX101   F51  C~1vXX      
2014 05  28.46200  16 05 02.501  -16 56 19.64  22.2w 14KX101   F51  C~1vXX      
2014 06  24.37152  16 02 20.777  -16 50 00.94  22.6w 14KX101   F51  C~1vXX      
2014 06  24.38435  16 02 20.696  -16 50 00.79  22.4w 14KX101   F51  C~1vXX      
2014 06  24.39717  16 02 20.631  -16 50 00.49  22.3w 14KX101   F51  C~1vXX      
2014 06  24.40996  16 02 20.564  -16 50 00.60  22.4w 14KX101   F51  C~1vXX      
2014 07  02.34498  16 01 40.743  -16 48 46.34  22.9G 14KX101   F51  C~2rY5      
2014 07  26.31219  16 00 16.458  -16 47 18.30  22.4w 14KX101   F51  C~1vXX      
2014 07  26.32408  16 00 16.420  -16 47 18.36  22.5w 14KX101   F51  C~1vXX      
2014 07  26.33595  16 00 16.406  -16 47 18.33  22.3w 14KX101   F51  C~1vXX      
2014 07  26.34781  16 00 16.371  -16 47 18.39  22.8w 14KX101   F51  C~1vXX      
2014 07  28.30799  16 00 12.312  -16 47 21.48  21.3G 14KX101   F51  C~2rY5      
2014 08  22.25023  16 00 02.351  -16 50 08.54  22.7w 14KX101   F51  C~1vXX      
2014 08  22.26192  16 00 02.358  -16 50 08.68  22.7w 14KX101   F51  C~1vXX      
2014 08  22.27359  16 00 02.361  -16 50 08.91  22.5w 14KX101   F51  C~1vXX      
2014 08  22.28526  16 00 02.391  -16 50 09.15  22.4w 14KX101   F51  C~1vXX      
2015 04  15.50744  16 18 59.178  -17 38 39.65  22.8G 14KX101   F51  C~2rY5      
2015 05  20.43803  16 15 43.084  -17 29 03.76  23.3G 14KX101   F51  C~2rY5      
2015 07  09.38214  16 10 52.486  -17 18 56.98  21.6G 14KX101   F51  C~2rY5      
2015 07  12.34954  16 10 40.114  -17 18 41.41  22.9w 14KX101   F51  C~1vXX      
2015 07  12.36130  16 10 40.061  -17 18 41.50  22.7w 14KX101   F51  C~1vXX      
2015 07  12.37307  16 10 40.015  -17 18 41.20  22.6w 14KX101   F51  C~1vXX      
2015 07  12.38488  16 10 39.967  -17 18 41.33  22.6w 14KX101   F51  C~1vXX      
2016 03  18.60656  16 29 51.879  -18 11 12.39  22.8G 14KX101   F51  C~2rY5      
2016 04  05.57922  16 29 14.433  -18 08 06.06  22.8G 14KX101   F51  C~2rY5      
2016 04  14.61936  16 28 41.240  -18 06 08.81  22.0G 14KX101   F51  C~2rY5      
2016 05  03.48233  16 27 07.612  -18 01 32.12  22.3G 14KX101   F51  C~2rY5      
2016 06  08.44903  16 23 22.380  -17 52 43.26  22.3G 14KX101   F51  C~2rY5      
2016 06  08.45876  16 23 22.296  -17 52 43.41  22.4G 14KX101   F51  C~2rY5      
2016 06  08.46850  16 23 22.253  -17 52 43.37  22.5G 14KX101   F51  C~2rY5      
2016 06  13.38396  16 22 51.529  -17 51 42.18  23.2G 14KX101   F51  C~2rY5      
2016 08  18.29397  16 18 58.763  -17 48 46.99  22.7G 14KX101   F51  C~2rY5      
2017 03  07.62423  16 39 22.778  -18 37 09.64  22.8G 14KX101   F51  C~2rY5      
2017 05  04.53598  16 36 46.104  -18 27 12.78  22.1G 14KX101   F51  C~2rY5      
2017 06  20.39051  16 31 54.324  -18 17 19.24  22.5G 14KX101   F51  C~2rY5      
2017 08  11.29283  16 28 32.723  -18 14 52.24  22.7G 14KX101   F51  C~2rY5      
2018 04  12.54831  16 48 06.632  -18 55 20.21  22.7G 14KX101   F51  C~2rY5      

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    -0.16
     2   0.2242      0.00    -0.08       0.00     0.25
     3   0.7016      0.00    -0.19       0.00    -0.07
     4   1.1552      0.00    -0.09       0.00    -0.43
     5   1.1661      0.00     0.26       0.00    -0.11
     6   1.2482      0.00    -0.04       0.00     0.19
     7   2.0071      0.00    -0.29       0.00    -0.04
     8   2.9080      0.00    -0.00       0.00    -0.10
     9   2.9709      0.00     0.23       0.00     0.30
    10   3.0036      0.00     0.12       0.00     0.17
    11   3.0446      0.00    -0.01       0.00    -0.07
    12   3.0446      0.00     0.15       0.00     0.17
    13   3.0446      0.00     0.15       0.00     0.12
    14   3.2496      0.00    -0.04       0.00     0.01
    15   4.0111      0.00    -0.01       0.00    -0.16
    16   4.0111      0.00     0.02       0.00    -0.10
    17   4.0112      0.00     0.10       0.00     0.68
    18   4.0248      0.00    -0.07       0.00     0.15
    19   4.0248      0.00    -0.06       0.00    -0.07
    20   4.0249      0.00    -0.08       0.00     0.15
    21   4.0249      0.00    -0.10       0.00     0.02
    22   4.0986      0.00     0.08       0.00    -0.03
    23   4.0986      0.00    -0.09       0.00    -0.01
    24   4.0986      0.00    -0.02       0.00     0.15
    25   4.0987      0.00     0.02       0.00    -0.10
    26   4.1204      0.00    -0.07       0.00    -0.04
    27   4.1860      0.00     0.06       0.00     0.04
    28   4.1860      0.00    -0.10       0.00    -0.02
    29   4.1861      0.00     0.10       0.00     0.02
    30   4.1861      0.00    -0.01       0.00    -0.03
    31   4.1915      0.00     0.41       0.00    -0.48
    32   4.2598      0.00     0.04       0.00    -0.01
    33   4.2598      0.00    -0.05       0.00    -0.02
    34   4.2598      0.00    -0.20       0.00    -0.12
    35   4.2599      0.00     0.06       0.00    -0.22
    36   4.9066      0.00     0.09       0.00    -0.24
    37   5.0022      0.00     0.18       0.00    -0.06
    38   5.1390      0.00    -0.01       0.00    -0.18
    39   5.1471      0.00     0.06       0.00     0.13
    40   5.1471      0.00    -0.01       0.00    -0.01
    41   5.1472      0.00     0.03       0.00     0.23
    42   5.1472      0.00     0.05       0.00     0.04
    43   5.8323      0.00    -0.14       0.00    -0.12
    44   5.8815      0.00    -0.11       0.00     0.07
    45   5.9062      0.00    -0.15       0.00    -0.20
    46   5.9579      0.00    -0.04       0.00    -0.19
    47   6.0563      0.00     0.07       0.00     0.32
    48   6.0564      0.00    -0.25       0.00     0.04
    49   6.0564      0.00     0.05       0.00    -0.05
    50   6.0699      0.00    -0.02       0.00     0.43
    51   6.2503      0.00    -0.44       0.00    -0.26
    52   6.8015      0.00     0.22       0.00     0.03
    53   6.9601      0.00     0.12       0.00     0.10
    54   7.0884      0.00     0.06       0.00    -0.07
    55   7.2305      0.00     0.03       0.00     0.01
    56   7.8992      0.00    -0.02       0.00    -0.11

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.

14KX101    quality flag:3

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

axisobj        39.285    39.285    39.285
ecceobj         0.233     0.233     0.233
incobj          4.003     4.003     4.003
qmin           29.348    29.349    29.345
qmax           50.221    50.221    50.221
amean          39.455    39.455    39.456
amin           38.991    38.985    38.983
amax           40.010    40.025    40.004
emean           0.236     0.236     0.236
emin            0.210     0.210     0.210
emax            0.256     0.256     0.256
imean           3.465     3.464     3.467
imin            2.258     2.257     2.258
imax            5.373     5.372     5.375
excite_mean     0.245     0.245     0.245
fracstop        1.000     1.000     1.000
cjmean          2.983     2.983     2.983

libcent 0       180.2     180.1     179.8
libamp  0        90.8      90.6      90.6
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       100.6     100.6     100.7
kozaiamp         61.3      61.3      61.3