Orbit Fit and Astrometric record for 14UF228

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: 14UF228   
# Created Sat Dec  4 02:12:51 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     32 observations of     32
# Arc:   6.21y
# First observation: 2013/08/09
#  Last observation: 2019/10/26
# Chi-squared of fit:    12.32 DOF:     58 RMS:  0.11
# Min/Max residuals:    -0.29    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.930246E-05  3.899790E-02  4.210236E-06  8.237383E-03  3.230564E-02 -1.740207E-03
# Covariance matrix:
  2.4360E-13 -1.0563E-13  1.1336E-14 -2.1331E-14  1.0412E-13 -3.6883E-13
 -1.0563E-13  2.0002E-13 -3.0597E-14  4.4500E-14  5.7904E-14  8.0372E-13
  1.1336E-14 -3.0597E-14  8.3951E-14 -3.3958E-14 -1.2129E-14 -1.3728E-13
 -2.1331E-14  4.4500E-14 -3.3958E-14  3.2269E-14  1.2797E-14  2.0014E-13
  1.0412E-13  5.7904E-14 -1.2129E-14  1.2797E-14  1.4851E-13  2.4755E-13
 -3.6883E-13  8.0372E-13 -1.3728E-13  2.0014E-13  2.4755E-13  3.6131E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.729934   26.813639    0.954615    0.022580   -0.345885  2456513.992098
# Heliocentric elements and errors
Epoch:              2456514.5000  =  2013/08/10
Mean Anomaly:          345.05699 +/-     0.009
Argument of Peri:       41.06708 +/-     0.015
Long of Asc Node:        8.31810 +/-     0.000
Inclination:            12.60397 +/-     0.000
Eccentricity:         0.22391701 +/-    0.0000
Semi-Major Axis:     39.71662025 +/-    0.0025
Time of Perihelion: 2460309.3301 +/-       8.7
Perihelion:          30.82339343 +/-    0.0025
Aphelion:            48.60984707 +/-    0.0035
Period (y)              250.3033 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.30716608 +/-    0.0003
Ecliptic Y           13.24103570 +/-    0.0002
Ecliptic Z            2.01386505 +/-    0.0000
Ecliptic XDOT        -0.00166895 +/-    0.0000
Ecliptic YDOT         0.00286189 +/-    0.0000
Ecliptic ZDOT         0.00068717 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   31.31579739 +/-    0.0003
Geocenter to KBO     30.95439347 +/-    0.0004
# Hcoef:  7.84

The following table shows the complete astrometric record for 14UF228. 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 (14UF228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.49132  01 33 58.374  +13 48 43.61  22.9r 14UF228   568  C~2SDe      
2013 08  09.53475  01 33 58.311  +13 48 43.80  22.9r 14UF228   568  C~2SDe      
2013 09  03.42878  01 32 48.982  +13 46 59.77  21.6r 14UF228   568  C~2SDe      
2013 10  07.37052  01 29 51.173  +13 34 59.35  22.6r 14UF228   568  C~2SDe      
2013 10  08.49207  01 29 44.338  +13 34 27.42  22.7r 14UF228   568  C~2SDe      
2013 10  30.40778  01 27 30.152  +13 23 17.85  22.7r 14UF228   568  C~2SDe      
2013 10  30.48641  01 27 29.673  +13 23 15.46  22.6r 14UF228   568  C~2SDe      
2013 11  01.48519  01 27 17.818  +13 22 12.61  22.8r 14UF228   568  C~2SDe      
2013 11  28.23576  01 25 00.337  +13 09 19.78  22.8r 14UF228   568  C~2SDe      
2013 12  03.30466  01 24 40.576  +13 07 19.38  22.9r 14UF228   568  C~2SDe      
2013 12  04.34687  01 24 36.832  +13 06 56.41  22.9r 14UF228   568  C~2SDe      
2013 12  29.29682  01 23 43.423  +13 00 45.21  22.9r 14UF228   568  C~2SDe      
2014 08  24.45776  01 41 23.614  +15 04 12.65  22.9r 14UF228   568  C~2SDe      
2014 08  24.53170  01 41 23.395  +15 04 12.46  22.9r 14UF228   568  C~2SDf      
2014 08  30.43607  01 41 04.710  +15 03 41.00  22.9r 14UF228   568  C~2SDf      
2014 08  30.54438  01 41 04.321  +15 03 40.20  22.8r 14UF228   568  C~2SDf      
2014 09  18.45130  01 39 42.312  +14 59 31.40  22.7r 14UF228   568  C~2SDf      
2014 09  18.49406  01 39 42.090  +14 59 30.60  22.6r 14UF228   568  C~2SDf      
2014 10  22.27410  01 36 23.219  +14 45 03.03  22.7r 14UF228   568  C~2SDf      
2014 10  22.31909  01 36 22.933  +14 45 01.68  22.7r 14UF228   568  C~2SDf      
2014 10  22.36391  01 36 22.649  +14 45 00.27  22.7r 14UF228   568  C~2SDf      
2014 10  23.45625  01 36 15.828  +14 44 26.73  22.8r 14UF228   568  C~2SDf      
2014 10  25.47218  01 36 03.294  +14 43 24.61  22.6r 14UF228   568  C~2SDf      
2014 11  20.20326  01 33 35.403  +14 30 16.35  22.7r 14UF228   568  C~2SDf      
2014 11  20.34387  01 33 34.663  +14 30 12.37  22.4r 14UF228   568  C~2SDf      
2014 11  21.24351  01 33 30.188  +14 29 46.62  22.9r 14UF228   568  C~2SDf      
2014 11  21.40974  01 33 29.344  +14 29 41.82  22.9r 14UF228   568  C~2SDf      
2015 01  28.25953  01 32 01.080  +14 17 35.43  22.9r 14UF228   568  C~2SDf      
2015 02  19.23532  01 33 32.091  +14 24 56.55  22.9r 14UF228   568  C~2SDf      
2016 01  07.29613  01 39 22.270  +15 31 22.19  23.1w 14UF228   568  C~2SDf      
2019 10  26.369390 02 18 15.272  +20 56 43.99  22.7G 14UF228   G37  C~3coM      
2019 10  26.446280 02 18 14.778  +20 56 41.73        14UF228   G37  C~3coM      

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    -0.03       0.00    -0.05
     2   0.0001      0.00     0.02       0.00    -0.05
     3   0.0683      0.00    -0.06       0.00     0.67
     4   0.1612      0.00     0.07       0.00    -0.02
     5   0.1643      0.00    -0.04       0.00    -0.05
     6   0.2243      0.00    -0.07       0.00    -0.06
     7   0.2245      0.00    -0.09       0.00     0.03
     8   0.2300      0.00     0.07       0.00    -0.08
     9   0.3032      0.00     0.08       0.00    -0.08
    10   0.3171      0.00    -0.03       0.00    -0.29
    11   0.3199      0.00     0.06       0.00    -0.03
    12   0.3882      0.00     0.08       0.00    -0.01
    13   1.0403      0.00    -0.03       0.00    -0.02
    14   1.0405      0.00    -0.04       0.00     0.02
    15   1.0567      0.00     0.03       0.00     0.03
    16   1.0570      0.00     0.01       0.00    -0.00
    17   1.1087      0.00    -0.02       0.00    -0.06
    18   1.1088      0.00    -0.00       0.00    -0.07
    19   1.2013      0.00     0.05       0.00     0.02
    20   1.2014      0.00     0.03       0.00     0.03
    21   1.2016      0.00     0.04       0.00    -0.02
    22   1.2046      0.00    -0.00       0.00    -0.08
    23   1.2101      0.00    -0.01       0.00    -0.03
    24   1.2805      0.00     0.05       0.00     0.02
    25   1.2809      0.00    -0.19       0.00     0.06
    26   1.2834      0.00    -0.00       0.00     0.06
    27   1.2838      0.00    -0.02       0.00    -0.01
    28   1.4696      0.00     0.01       0.00     0.04
    29   1.5298      0.00     0.04       0.00    -0.00
    30   2.4115      0.00     0.05       0.00     0.05
    31   6.2118      0.00    -0.14       0.00     0.12
    32   6.2121      0.00     0.14       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.

14UF228    quality flag:3

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

axisobj        39.911    39.911    39.911
ecceobj         0.227     0.227     0.227
incobj         12.572    12.572    12.572
qmin           28.530    28.549    28.537
qmax           51.006    50.974    51.006
amean          39.456    39.456    39.455
amin           38.951    38.958    38.961
amax           40.052    40.050    40.035
emean           0.236     0.236     0.236
emin            0.191     0.193     0.192
emax            0.276     0.276     0.276
imean          11.209    11.214    11.225
imin            9.147     9.139     9.143
imax           13.617    13.651    13.651
excite_mean     0.307     0.307     0.307
fracstop        1.000     1.000     1.000
cjmean          2.944     2.944     2.944

libcent 0       180.7     179.9     179.9
libamp  0       106.6     105.8     106.1
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        91.1      89.5      88.9
kozaiamp         73.0      72.7      72.5