Orbit Fit and Astrometric record for 14UO250

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: 14UO250   
# Created Sat Jan 11 02:10:11 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     26 observations of     26
# Arc:   6.05y
# First observation: 2014/10/02
#  Last observation: 2020/10/20
# Chi-squared of fit:    10.82 DOF:     46 RMS:  0.11
# Min/Max residuals:    -0.27    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.423110E-05  2.300120E-02 -6.544502E-06 -1.201851E-02  2.561288E-02 -2.068176E-03
# Covariance matrix:
  2.3370E-13 -1.1354E-13 -3.3397E-14  3.9455E-14  7.8548E-14 -5.8369E-13
 -1.1354E-13  1.1299E-13  4.3379E-14 -5.1704E-14  4.3427E-14  7.6353E-13
 -3.3397E-14  4.3379E-14  1.7263E-13 -6.9397E-14  1.6594E-14  3.6058E-13
  3.9455E-14 -5.1704E-14 -6.9397E-14  5.0096E-14 -2.1058E-14 -4.2961E-13
  7.8548E-14  4.3427E-14  1.6594E-14 -2.1058E-14  4.2426E-13  3.0714E-13
 -5.8369E-13  7.6353E-13  3.6058E-13 -4.2961E-13  3.0714E-13  6.3446E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.241505   27.892692    0.328974   -0.102866   -0.942113  2456932.822448
# Heliocentric elements and errors
Epoch:              2456932.5000  =  2014/10/02
Mean Anomaly:          302.09634 +/-     0.037
Argument of Peri:      261.29182 +/-     0.049
Long of Asc Node:      195.97890 +/-     0.000
Inclination:            28.28606 +/-     0.000
Eccentricity:         0.10094755 +/-    0.0001
Semi-Major Axis:     41.90132420 +/-    0.0044
Time of Perihelion: 2472867.1888 +/-      16.6
Perihelion:          37.67148798 +/-    0.0056
Aphelion:            46.13116041 +/-    0.0063
Period (y)              271.2376 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.29130453 +/-    0.0009
Ecliptic Y           18.31103635 +/-    0.0005
Ecliptic Z           -4.24501631 +/-    0.0001
Ecliptic XDOT        -0.00147249 +/-    0.0000
Ecliptic YDOT         0.00200025 +/-    0.0000
Ecliptic ZDOT        -0.00125294 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.98493334 +/-    0.0008
Geocenter to KBO     39.04294158 +/-    0.0010
# Hcoef:  7.37

The following table shows the complete astrometric record for 14UO250. 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 (14UO250) followed by the observatory code and reference code for the source of the astrometry.

2014 10  02.32167  01 52 33.670  +04 53 22.49  24.3g 14UO250   W84  C~4yUz      
2014 10  02.32304  01 52 33.664  +04 53 22.72  23.0r 14UO250   W84  C~4yUz      
2014 10  23.26265  01 50 56.947  +04 41 15.08  23.9r 14UO250   W84  C~4yUz      
2014 10  23.26542  01 50 56.93   +04 41 15.0   22.6i 14UO250   W84  C~3coQ      
2014 10  29.23599  01 50 28.629  +04 37 57.81  22.9r 14UO250   W84  C~4yUz      
2015 10  18.22426  01 57 18.157  +04 33 19.17  23.0r 14UO250   W84  C~4yUz      
2015 11  06.17272  01 55 48.346  +04 23 03.16  23.4i 14UO250   W84  C~4yUz      
2015 11  06.17409  01 55 48.345  +04 23 03.22  23.4r 14UO250   W84  C~4yUz      
2015 11  06.17545  01 55 48.346  +04 23 03.00  24.2g 14UO250   W84  C~4yUz      
2015 11  18.17421  01 54 54.74   +04 17 28.2   23.3r 14UO250   W84  C~3coQ      
2016 09  09.29496  02 05 49.306  +04 44 00.76  23.4r 14UO250   W84  C~4yUz      
2016 09  09.29635  02 05 49.316  +04 44 00.64  23.8i 14UO250   W84  C~4yUz      
2016 09  09.29774  02 05 49.315  +04 44 00.95  24.2g 14UO250   W84  C~4yUz      
2016 10  23.20859  02 02 48.106  +04 18 53.91  22.3r 14UO250   W84  C~4yUz      
2016 10  28.23573  02 02 24.011  +04 16 08.68  23.0i 14UO250   W84  C~4yUz      
2016 10  28.23711  02 02 24.001  +04 16 08.60  23.8g 14UO250   W84  C~4yUz      
2017 09  18.30162  02 11 17.888  +04 27 48.65  22.9r 14UO250   W84  C~4yUz      
2017 09  18.30299  02 11 17.882  +04 27 48.89  22.5i 14UO250   W84  C~4yUz      
2017 09  18.30931  02 11 17.856  +04 27 48.71  23.9g 14UO250   W84  C~4yUz      
2017 10  22.22735  02 08 52.451  +04 08 09.83  23.5r 14UO250   W84  C~4yUz      
2017 10  29.24005  02 08 18.698  +04 04 19.57  23.3z 14UO250   W84  C~4yUz      
2017 11  16.18225  02 06 54.574  +03 55 36.45  23.0r 14UO250   W84  C~4yUz      
2017 11  16.18363  02 06 54.575  +03 55 36.64  23.2g 14UO250   W84  C~4yUz      
2018 11  29.17618  02 11 58.999  +03 39 12.27  24.2g 14UO250   W84  C~4yUz      
2020 10  20.299780 02 27 04.985  +03 33 41.62  23.1G 14UO250   G37  C~4Kxo      
2020 10  20.352440 02 27 04.720  +03 33 39.84        14UO250   G37  C~4Kxo      

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     0.06       0.00    -0.17
     2   0.0000      0.00     0.06       0.00     0.11
     3   0.0573      0.00    -0.03       0.00     0.03
     4   0.0573      0.00    -0.09       0.00     0.04
     5   0.0737      0.00     0.22       0.00     0.02
     6   1.0429      0.00    -0.16       0.00    -0.27
     7   1.0947      0.00    -0.10       0.00     0.01
     8   1.0947      0.00    -0.02       0.00     0.11
     9   1.0947      0.00     0.09       0.00    -0.07
    10   1.1276      0.00    -0.05       0.00    -0.05
    11   1.9383      0.00    -0.15       0.00    -0.04
    12   1.9383      0.00     0.07       0.00    -0.12
    13   1.9383      0.00     0.11       0.00     0.24
    14   2.0586      0.00    -0.21       0.00     0.01
    15   2.0723      0.00     0.05       0.00     0.05
    16   2.0723      0.00    -0.00       0.00     0.01
    17   2.9623      0.00     0.06       0.00    -0.10
    18   2.9623      0.00     0.04       0.00     0.19
    19   2.9623      0.00    -0.01       0.00     0.22
    20   3.0552      0.00    -0.00       0.00    -0.03
    21   3.0744      0.00    -0.10       0.00    -0.00
    22   3.1235      0.00     0.10       0.00    -0.07
    23   3.1235      0.00     0.21       0.00     0.15
    24   4.1584      0.00     0.10       0.00    -0.18
    25   6.0506      0.00     0.04       0.00    -0.02
    26   6.0507      0.00    -0.12       0.00    -0.02

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.

14UO250    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.188    42.188    42.188
ecceobj         0.101     0.101     0.101
incobj         28.170    28.170    28.170
qmin           37.248    37.246    37.242
qmax           46.840    46.892    46.836
amean          41.934    41.935    41.935
amin           41.610    41.613    41.613
amax           42.294    42.294    42.287
emean           0.093     0.093     0.093
emin            0.080     0.080     0.079
emax            0.109     0.109     0.108
imean          28.510    28.510    28.510
imin           28.164    28.164    28.164
imax           28.876    28.872    28.870
excite_mean     0.486     0.486     0.486
fracstop        1.000     1.000     1.000
cjmean          2.784     2.784     2.784

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       178.9     179.0     178.9
kozaiamp        180.0     179.9     180.0