Orbit Fit and Astrometric record for 14UQ250

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: 14UQ250   
# Created Sat Dec  4 02:12:55 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     35 observations of     35
# Arc:   6.20y
# First observation: 2014/10/31
#  Last observation: 2021/01/11
# Chi-squared of fit:    14.66 DOF:     64 RMS:  0.11
# Min/Max residuals:    -0.44    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.731289E-05  2.987530E-02  5.228207E-06  9.042357E-03  2.704906E-02 -5.708692E-03
# Covariance matrix:
  1.8017E-13 -1.0368E-13  1.3395E-14 -3.4920E-14  1.1677E-13 -5.3567E-13
 -1.0368E-13  1.0854E-13 -2.3181E-14  3.9123E-14 -4.5466E-14  6.2726E-13
  1.3395E-14 -2.3181E-14  9.1488E-14 -3.3073E-14 -5.3124E-15 -1.5054E-13
 -3.4920E-14  3.9123E-14 -3.3073E-14  2.9586E-14 -2.4605E-14  2.5859E-13
  1.1677E-13 -4.5466E-14 -5.3124E-15 -2.4605E-14  2.3633E-13 -3.2851E-13
 -5.3567E-13  6.2726E-13 -1.5054E-13  2.5859E-13 -3.2851E-13  4.1371E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -28.361191   32.335283   -0.088192   -0.470249   -0.871515  2456961.785418
# Heliocentric elements and errors
Epoch:              2456962.5000  =  2014/11/01
Mean Anomaly:          341.88319 +/-     0.007
Argument of Peri:      338.61336 +/-     0.015
Long of Asc Node:       89.13386 +/-     0.000
Inclination:            32.09692 +/-     0.000
Eccentricity:         0.35910874 +/-    0.0001
Semi-Major Axis:     55.49033684 +/-    0.0066
Time of Perihelion: 2464560.5764 +/-      25.8
Perihelion:          35.56327197 +/-    0.0053
Aphelion:            75.41740172 +/-    0.0096
Period (y)              413.3655 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.27438727 +/-    0.0005
Ecliptic Y           18.00664154 +/-    0.0003
Ecliptic Z          -17.56161823 +/-    0.0003
Ecliptic XDOT        -0.00168408 +/-    0.0000
Ecliptic YDOT         0.00251073 +/-    0.0000
Ecliptic ZDOT         0.00107998 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.84309242 +/-    0.0004
Geocenter to KBO     36.97002514 +/-    0.0007
# Hcoef:  7.52

The following table shows the complete astrometric record for 14UQ250. 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 (14UQ250) followed by the observatory code and reference code for the source of the astrometry.

2014 10  31.28464  02 39 26.34   -14 23 42.4   23.4r 14UQ250   W84  C~3coQ      
2014 11  03.31066  02 39 10.108  -14 24 33.50  22.9i 14UQ250   W84  C~4yUz      
2014 12  12.19982  02 35 58.900  -14 23 17.27  23.1z 14UQ250   W84  C~4yUz      
2014 12  12.19982  02 35 58.90   -14 23 17.3   23.1z 14UQ250   W84  C~3coQ      
2014 12  12.20119  02 35 58.890  -14 23 17.18  23.5i 14UQ250   W84  C~4yUz      
2014 12  12.20119  02 35 58.89   -14 23 17.2   23.5i 14UQ250   W84  C~3coQ      
2014 12  14.13695  02 35 51.326  -14 22 36.09  24.3g 14UQ250   W84  C~4yUz      
2014 12  15.19793  02 35 47.297  -14 22 12.82  23.9g 14UQ250   W84  C~4yUz      
2014 12  16.19628  02 35 43.580  -14 21 48.97  23.1i 14UQ250   W84  C~4yUz      
2014 12  16.19628  02 35 43.58   -14 21 49.0   23.1i 14UQ250   W84  C~3coQ      
2014 12  24.17015  02 35 16.800  -14 18 09.87  23.4r 14UQ250   W84  C~4yUz      
2014 12  24.17015  02 35 16.80   -14 18 09.9   23.6r 14UQ250   W84  C~3coQ      
2015 11  21.23988  02 43 29.129  -13 21 55.11  22.8z 14UQ250   W84  C~4yUz      
2015 11  30.23994  02 42 44.099  -13 21 26.28  22.9i 14UQ250   W84  C~4yUz      
2015 11  30.23994  02 42 44.10   -13 21 26.3   22.9i 14UQ250   W84  C~3coQ      
2015 12  05.22567  02 42 20.719  -13 20 37.81  23.2r 14UQ250   W84  C~4yUz      
2015 12  05.22567  02 42 20.72   -13 20 37.8   23.2r 14UQ250   W84  C~3coQ      
2015 12  05.22705  02 42 20.727  -13 20 37.72  23.9g 14UQ250   W84  C~4yUz      
2016 10  06.23158  02 53 15.63   -12 00 40.0   23.7V 14UQ250   W84  C~3coQ      
2016 10  06.35817  02 53 15.06   -12 00 44.3         14UQ250   W84  C~3coQ      
2016 10  07.30966  02 53 10.83   -12 01 16.6         14UQ250   W84  C~3coQ      
2016 11  22.21560  02 49 13.133  -12 15 44.90  23.3r 14UQ250   W84  C~4yUz      
2016 11  22.21560  02 49 13.13   -12 15 44.9   23.5r 14UQ250   W84  C~3coQ      
2016 11  22.21697  02 49 13.141  -12 15 44.94  23.4g 14UQ250   W84  C~4yUz      
2016 11  22.21697  02 49 13.14   -12 15 44.9   23.6g 14UQ250   W84  C~3coQ      
2017 09  07.35855  03 00 42.927  -10 34 37.32  23.1z 14UQ250   W84  C~4yUz      
2017 10  29.33104  02 57 16.595  -11 03 39.12  22.7i 14UQ250   W84  C~4yUz      
2017 10  29.33242  02 57 16.579  -11 03 39.20  23.1r 14UQ250   W84  C~4yUz      
2017 10  29.33380  02 57 16.564  -11 03 39.08  23.8g 14UQ250   W84  C~4yUz      
2017 11  01.16058  02 57 01.439  -11 04 35.82  22.6z 14UQ250   W84  C~4yUz      
2017 12  22.16896  02 52 51.724  -11 02 28.91  22.6i 14UQ250   W84  C~4yUz      
2017 12  22.17034  02 52 51.723  -11 02 28.96  23.2r 14UQ250   W84  C~4yUz      
2021 01  11.122750 03 09 27.934  -07 25 34.26  23.0G 14UQ250   G37  C~4UEd      
2021 01  11.187740 03 09 27.794  -07 25 31.98        14UQ250   G37  C~4UEd      
2021 01  11.238960 03 09 27.651  -07 25 30.67        14UQ250   G37  C~4UEd      

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     0.02
     2   0.0083      0.00     0.04       0.00     0.06
     3   0.1148      0.00     0.06       0.00    -0.06
     4   0.1148      0.00     0.06       0.00    -0.03
     5   0.1148      0.00    -0.01       0.00     0.01
     6   0.1148      0.00    -0.01       0.00     0.03
     7   0.1201      0.00    -0.07       0.00     0.26
     8   0.1230      0.00     0.00       0.00    -0.35
     9   0.1257      0.00    -0.04       0.00     0.06
    10   0.1257      0.00    -0.04       0.00     0.09
    11   0.1475      0.00    -0.04       0.00    -0.01
    12   0.1475      0.00    -0.04       0.00     0.02
    13   1.0567      0.00     0.10       0.00     0.03
    14   1.0813      0.00     0.03       0.00     0.02
    15   1.0813      0.00     0.02       0.00     0.04
    16   1.0950      0.00    -0.06       0.00    -0.08
    17   1.0950      0.00    -0.07       0.00    -0.09
    18   1.0950      0.00     0.14       0.00    -0.02
    19   1.9328      0.00     0.03       0.00    -0.02
    20   1.9331      0.00     0.04       0.00     0.01
    21   1.9357      0.00     0.07       0.00     0.04
    22   2.0614      0.00    -0.09       0.00    -0.03
    23   2.0614      0.00    -0.04       0.00    -0.03
    24   2.0614      0.00     0.17       0.00    -0.03
    25   2.0614      0.00     0.18       0.00    -0.07
    26   2.8530      0.00    -0.06       0.00     0.02
    27   2.9953      0.00     0.12       0.00    -0.02
    28   2.9953      0.00    -0.01       0.00    -0.07
    29   2.9953      0.00    -0.12       0.00     0.08
    30   3.0031      0.00    -0.23       0.00     0.18
    31   3.1427      0.00    -0.09       0.00     0.12
    32   3.1427      0.00    -0.03       0.00     0.03
    33   6.1981      0.00     0.13       0.00     0.22
    34   6.1982      0.00     0.21       0.00     0.13
    35   6.1984      0.00    -0.22       0.00    -0.44

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.

14UQ250    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE
Type:         5:2EII    5:2EII    5:2EII

axisobj        56.136    56.136    56.137
ecceobj         0.364     0.364     0.364
incobj         32.104    32.104    32.104
qmin           33.083    33.080    33.087
qmax           78.979    78.983    78.968
amean          55.461    55.461    55.461
amin           54.791    54.791    54.791
amax           56.334    56.331    56.332
emean           0.384     0.384     0.383
emin            0.350     0.350     0.350
emax            0.404     0.404     0.404
imean          29.423    29.420    29.426
imin           28.713    28.709    28.718
imax           30.750    30.750    30.750
excite_mean     0.623     0.623     0.623
fracstop        1.000     1.000     1.000
cjmean          2.727     2.727     2.727

libcent 0       179.6     179.2     179.6
libamp  0       100.5     100.9     100.6
libcent 1       180.1     180.2     180.3
libamp  1       142.2     142.5     142.6
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       196.0     196.1     195.8
kozaiamp        180.0     180.0     180.0