Orbit Fit and Astrometric record for 14UM229

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: 14UM229   
# Created Tue Nov 30 02:12:54 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     40 observations of     40
# Arc:   8.18y
# First observation: 2013/09/01
#  Last observation: 2021/11/05
# Chi-squared of fit:    20.83 DOF:     74 RMS:  0.13
# Min/Max residuals:    -0.35    0.45
# Exact a, adot, b, bdot, g, gdot:
  1.553552E-05  2.849766E-02 -7.367408E-07 -1.610366E-03  2.656196E-02 -1.003578E-03
# Covariance matrix:
  1.1911E-13 -5.4151E-14 -2.0175E-15  2.8527E-15  4.1616E-14 -2.1224E-13
 -5.4151E-14  1.1979E-13  4.7597E-15 -6.6992E-15  6.8637E-14  5.0186E-13
 -2.0175E-15  4.7597E-15  5.6460E-14 -1.3017E-14  2.5727E-15  2.1541E-14
  2.8527E-15 -6.6992E-15 -1.3017E-14  8.5913E-15 -3.6025E-15 -3.0326E-14
  4.1616E-14  6.8637E-14  2.5727E-15 -3.6025E-15  1.3701E-13  2.7194E-13
 -2.1224E-13  5.0186E-13  2.1541E-14 -3.0326E-14  2.7194E-13  2.2710E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.790151   25.387945    0.732489    0.033923   -0.694964  2456537.018708
# Heliocentric elements and errors
Epoch:              2456536.5000  =  2013/09/01
Mean Anomaly:          339.11809 +/-     0.018
Argument of Peri:      166.68041 +/-     0.024
Long of Asc Node:      245.02583 +/-     0.002
Inclination:             4.19346 +/-     0.000
Eccentricity:         0.13646232 +/-    0.0000
Semi-Major Axis:     43.80911344 +/-    0.0025
Time of Perihelion: 2462679.9584 +/-      10.1
Perihelion:          37.83082039 +/-    0.0028
Aphelion:            49.78740650 +/-    0.0034
Period (y)              289.9712 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.91384759 +/-    0.0005
Ecliptic Y           15.76176322 +/-    0.0002
Ecliptic Z            1.83261915 +/-    0.0000
Ecliptic XDOT        -0.00135161 +/-    0.0000
Ecliptic YDOT         0.00261178 +/-    0.0000
Ecliptic ZDOT        -0.00017069 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.35063457 +/-    0.0004
Geocenter to KBO     37.64788541 +/-    0.0005
# Hcoef:  8.42

The following table shows the complete astrometric record for 14UM229. 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 (14UM229) followed by the observatory code and reference code for the source of the astrometry.

2013 09  01.51793  01 29 56.996  +12 24 56.76  24.9r 14UM229   568  C~2SDk      
2013 09  01.55676  01 29 56.845  +12 24 56.00  24.1r 14UM229   568  C~2SDk      
2013 09  02.49944  01 29 53.803  +12 24 40.74  24.1r 14UM229   568  C~2SDk      
2013 09  02.55084  01 29 53.644  +12 24 40.05  23.9r 14UM229   568  C~2SDk      
2013 10  03.49553  01 27 44.698  +12 12 53.68  21.5r 14UM229   568  C~2SDk      
2013 10  04.59224  01 27 39.388  +12 12 22.94  24.0r 14UM229   568  C~2SDk      
2013 10  31.35976  01 25 27.470  +11 59 03.52  23.8r 14UM229   568  C~2SDk      
2013 11  01.30558  01 25 22.966  +11 58 35.02  24.3r 14UM229   568  C~2SDk      
2013 11  01.34467  01 25 22.776  +11 58 33.99  24.0r 14UM229   568  C~2SDk      
2013 11  01.43401  01 25 22.337  +11 58 31.31  24.3r 14UM229   568  C~2SDk      
2013 12  04.33911  01 23 12.812  +11 43 52.10  24.4r 14UM229   568  C~2SDk      
2013 12  29.23399  01 22 30.327  +11 37 31.24  24.9r 14UM229   568  C~2SDk      
2014 07  25.54419  01 37 13.812  +12 58 44.75  24.1r 14UM229   568  C~2SDk      
2014 07  25.58600  01 37 13.833  +12 58 44.92  24.7r 14UM229   568  C~2SDk      
2014 08  23.54476  01 36 44.650  +12 57 34.80  24.6r 14UM229   568  C~2SDk      
2014 08  23.59164  01 36 44.534  +12 57 34.37  24.4r 14UM229   568  C~2SDk      
2014 08  27.43709  01 36 34.950  +12 56 50.36  24.3r 14UM229   568  C~2SDk      
2014 08  27.53293  01 36 34.684  +12 56 49.28  24.4r 14UM229   568  C~2SDk      
2014 09  18.36761  01 35 18.988  +12 50 23.36  24.0r 14UM229   568  C~2SDk      
2014 09  18.41224  01 35 18.810  +12 50 22.34  24.0r 14UM229   568  C~2SDk      
2014 09  23.44649  01 34 57.161  +12 48 24.70  24.3r 14UM229   568  C~2SDk      
2014 10  22.41325  01 32 36.884  +12 34 57.02  24.2r 14UM229   568  C~2SDk      
2014 10  22.45268  01 32 36.678  +12 34 55.97  24.4r 14UM229   568  C~2SDk      
2014 10  22.49207  01 32 36.491  +12 34 54.81  24.2r 14UM229   568  C~2SDk      
2014 10  23.40059  01 32 31.958  +12 34 27.29  24.8r 14UM229   568  C~2SDk      
2014 10  25.26507  01 32 22.668  +12 33 30.95  24.2r 14UM229   568  C~2SDk      
2014 11  19.21279  01 30 27.556  +12 21 21.84  24.4r 14UM229   568  C~2SDk      
2014 11  19.34560  01 30 27.000  +12 21 18.34  24.4r 14UM229   568  C~2SDk      
2014 11  21.19245  01 30 19.644  +12 20 28.55  24.1r 14UM229   568  C~2SDk      
2014 11  21.19865  01 30 19.593  +12 20 28.66  24.7r 14UM229   568  C~2SDk      
2014 11  21.36159  01 30 18.909  +12 20 24.51  24.3r 14UM229   568  C~2SDk      
2015 01  28.24775  01 29 12.030  +12 08 10.88  23.7r 14UM229   568  C~2SDk      
2015 02  18.23136  01 30 22.664  +12 13 13.71  24.1r 14UM229   568  C~2SDk      
2015 12  07.43675  01 35 47.510  +12 44 48.40  24.6w 14UM229   568  C~2SDk      
2015 12  07.44916  01 35 47.468  +12 44 48.20  24.4w 14UM229   568  C~2SDk      
2017 01  27.26476  01 41 40.448  +13 07 40.84  24.5w 14UM229   568  C~2SDk      
2017 01  28.26052  01 41 42.525  +13 07 47.30  24.8w 14UM229   568  C~2SDk      
2021 11  05.275670 02 17 26.113  +15 51 11.12  23.9G 14UM229   G37  C~5BUt      
2021 11  05.331150 02 17 25.817  +15 51 09.52        14UM229   G37  C~5BUt      
2021 11  05.390300 02 17 25.517  +15 51 07.98        14UM229   G37  C~5BUt      

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     0.30       0.00     0.07
     2   0.0001      0.00    -0.05       0.00    -0.07
     3   0.0027      0.00    -0.14       0.00    -0.05
     4   0.0028      0.00     0.06       0.00     0.10
     5   0.0875      0.00     0.01       0.00    -0.08
     6   0.0906      0.00     0.07       0.00    -0.05
     7   0.1638      0.00     0.06       0.00    -0.13
     8   0.1664      0.00     0.10       0.00    -0.05
     9   0.1665      0.00     0.09       0.00     0.09
    10   0.1668      0.00    -0.00       0.00     0.11
    11   0.2569      0.00    -0.09       0.00     0.10
    12   0.3250      0.00    -0.18       0.00     0.04
    13   0.8953      0.00    -0.16       0.00     0.13
    14   0.8955      0.00    -0.03       0.00     0.05
    15   0.9747      0.00    -0.09       0.00    -0.10
    16   0.9749      0.00    -0.12       0.00    -0.05
    17   0.9854      0.00     0.09       0.00    -0.11
    18   0.9857      0.00     0.04       0.00    -0.01
    19   1.0454      0.00    -0.11       0.00    -0.05
    20   1.0456      0.00     0.06       0.00    -0.08
    21   1.0594      0.00     0.17       0.00    -0.16
    22   1.1387      0.00    -0.09       0.00     0.04
    23   1.1388      0.00    -0.16       0.00     0.18
    24   1.1389      0.00     0.04       0.00     0.21
    25   1.1414      0.00     0.07       0.00     0.07
    26   1.1465      0.00     0.02       0.00     0.04
    27   1.2148      0.00     0.10       0.00    -0.04
    28   1.2151      0.00     0.03       0.00     0.05
    29   1.2202      0.00     0.45       0.00    -0.23
    30   1.2202      0.00     0.06       0.00     0.04
    31   1.2207      0.00    -0.35       0.00     0.20
    32   1.4065      0.00    -0.03       0.00    -0.06
    33   1.4640      0.00    -0.27       0.00    -0.27
    34   2.2640      0.00    -0.06       0.00    -0.01
    35   2.2640      0.00    -0.13       0.00     0.05
    36   3.4052      0.00     0.10       0.00    -0.00
    37   3.4079      0.00     0.25       0.00    -0.00
    38   8.1773      0.00    -0.03       0.00     0.02
    39   8.1774      0.00    -0.09       0.00    -0.05
    40   8.1776      0.00     0.07       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.

14UM229    quality flag:3

Type:         7:4EEE    7:4EEE    7:4EEE

axisobj        44.055    44.055    44.055
ecceobj         0.140     0.140     0.140
incobj          4.194     4.194     4.194
qmin           35.813    35.796    35.805
qmax           52.021    52.019    52.011
amean          43.727    43.727    43.727
amin           43.340    43.335    43.347
amax           44.155    44.167    44.158
emean           0.147     0.147     0.146
emin            0.112     0.112     0.111
emax            0.179     0.179     0.179
imean           4.858     4.842     4.872
imin            2.765     2.755     2.778
imax            6.509     6.492     6.531
excite_mean     0.171     0.171     0.171
fracstop        1.000     1.000     1.000
cjmean          3.063     3.063     3.063

libcent 0       181.7     179.6     180.0
libamp  0        53.7      53.7      51.7
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       181.3     181.1     181.4
kozaiamp        180.0     180.0     179.9