Orbit Fit and Astrometric record for 14UX276

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: 14UX276   
# Created Sun Nov 24 02:10:05 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     20 observations of     20
# Arc:  11.08y
# First observation: 2013/10/04
#  Last observation: 2024/11/01
# Chi-squared of fit:    32.36 DOF:     34 RMS:  0.22
# Min/Max residuals:    -0.85    0.47
# Exact a, adot, b, bdot, g, gdot:
  1.606835E-05  2.498148E-02  8.153225E-07  1.396355E-03  2.470978E-02  2.051434E-03
# Covariance matrix:
  6.9339E-13 -3.5762E-13  2.2920E-14 -1.9769E-14  2.4223E-13 -1.1613E-12
 -3.5762E-13  2.1787E-13 -1.4885E-14  1.2507E-14 -1.3888E-13  7.3395E-13
  2.2920E-14 -1.4885E-14  1.6488E-13 -2.4477E-14  2.4697E-15 -5.1250E-14
 -1.9769E-14  1.2507E-14 -2.4477E-14  7.2449E-15 -8.2589E-15  4.3434E-14
  2.4223E-13 -1.3888E-13  2.4697E-15 -8.2589E-15  3.6721E-13 -4.9875E-13
 -1.1613E-12  7.3395E-13 -5.1250E-14  4.3434E-14 -4.9875E-13  2.5496E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.638205   13.292953    0.044241   -0.149997   -0.988059  2456569.661028
# Heliocentric elements and errors
Epoch:              2456570.5000  =  2013/10/05
Mean Anomaly:           38.66116 +/-     0.021
Argument of Peri:      242.53113 +/-     0.024
Long of Asc Node:       82.61800 +/-     0.001
Inclination:             8.99850 +/-     0.000
Eccentricity:         0.11465213 +/-    0.0001
Semi-Major Axis:     45.24256804 +/-    0.0066
Time of Perihelion: 2444633.5981 +/-       6.9
Perihelion:          40.05541142 +/-    0.0079
Aphelion:            50.42972467 +/-    0.0091
Period (y)              304.3190 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.92091934 +/-    0.0010
Ecliptic Y            9.38947434 +/-    0.0002
Ecliptic Z           -6.07833857 +/-    0.0002
Ecliptic XDOT        -0.00040129 +/-    0.0000
Ecliptic YDOT         0.00274944 +/-    0.0000
Ecliptic ZDOT         0.00011896 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.45821995 +/-    0.0009
Geocenter to KBO     40.46978575 +/-    0.0010
# Hcoef:  7.26

The following table shows the complete astrometric record for 14UX276. 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 (14UX276) followed by the observatory code and reference code for the source of the astrometry.

2013 10  04.16025  01 02 19.567  -02 42 55.96  24.6g 14UX276   W84  C~52UR      
2014 10  28.24320  01 05 40.889  -02 15 15.80  23.6r 14UX276   W84  C~52UR      
2014 10  28.24457  01 05 40.895  -02 15 15.75  22.8i 14UX276   W84  C~52UR      
2014 11  15.02261  01 04 29.991  -02 20 19.87  23.1i 14UX276   W84  C~52UR      
2014 11  15.09076  01 04 29.748  -02 20 20.52  23.7r 14UX276   W84  C~52UR      
2014 11  16.06419  01 04 26.307  -02 20 32.40  23.2i 14UX276   W84  C~52UR      
2014 11  17.11068  01 04 22.661  -02 20 44.86  23.3i 14UX276   W84  C~52UR      
2014 11  21.03676  01 04 09.604  -02 21 25.88  22.4z 14UX276   W84  C~52UR      
2015 09  04.30277  01 14 37.759  -01 13 19.94  22.9z 14UX276   W84  C~52UR      
2016 08  16.40088  01 20 29.789  -00 28 39.02  23.6i 14UX276   W84  C~52UR      
2016 08  16.40224  01 20 29.801  -00 28 39.24  23.2r 14UX276   W84  C~52UR      
2016 08  25.39991  01 20 08.632  -00 32 10.57  23.3z 14UX276   W84  C~52UR      
2016 11  05.18380  01 15 16.388  -01 03 20.18  23.3i 14UX276   W84  C~52UR      
2016 11  05.18518  01 15 16.393  -01 03 19.84  23.5r 14UX276   W84  C~52UR      
2017 08  22.41422  01 25 17.803  +00 06 01.77  23.1i 14UX276   W84  C~52UR      
2017 08  27.37907  01 25 05.246  +00 04 03.04  23.2r 14UX276   W84  C~52UR      
2017 09  18.26904  01 23 51.253  -00 05 44.29  23.2r 14UX276   W84  C~52UR      
2024 11  01.24356  01 55 34.265  +03 50 58.91  24.1G 14UX276   G37              
2024 11  01.29112  01 55 34.050  +03 50 57.96        14UX276   G37              
2024 11  01.33676  01 55 33.818  +03 50 57.04        14UX276   G37              

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    -0.02       0.00     0.01
     2   1.0653      0.00    -0.12       0.00     0.11
     3   1.0653      0.00     0.06       0.00     0.19
     4   1.1139      0.00    -0.19       0.00    -0.29
     5   1.1141      0.00    -0.11       0.00    -0.08
     6   1.1168      0.00    -0.04       0.00     0.08
     7   1.1196      0.00     0.01       0.00    -0.01
     8   1.1304      0.00     0.47       0.00    -0.07
     9   1.9169      0.00     0.02       0.00     0.03
    10   2.8672      0.00    -0.03       0.00     0.03
    11   2.8672      0.00     0.20       0.00    -0.16
    12   2.8918      0.00    -0.11       0.00     0.02
    13   3.0884      0.00    -0.16       0.00    -0.01
    14   3.0884      0.00     0.01       0.00     0.35
    15   3.8830      0.00    -0.00       0.00    -0.15
    16   3.8966      0.00     0.15       0.00     0.01
    17   3.9565      0.00    -0.05       0.00    -0.01
    18  11.0776      0.00    -0.57       0.00    -0.20
    19  11.0777      0.00    -0.52       0.00    -0.12
    20  11.0778      0.00    -0.85       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.

14UX276    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.532    45.553    45.510
ecceobj         0.120     0.121     0.120
incobj          9.003     9.003     9.003
qmin           39.413    39.418    39.410
qmax           51.401    51.445    51.355
amean          45.242    45.264    45.222
amin           44.876    44.885    44.840
amax           45.655    45.670    45.634
emean           0.112     0.113     0.112
emin            0.098     0.098     0.097
emax            0.127     0.127     0.126
imean           7.233     7.234     7.231
imin            6.729     6.745     6.725
imax            7.824     7.818     7.824
excite_mean     0.169     0.169     0.168
fracstop        1.000     1.000     1.000
cjmean          3.082     3.082     3.082

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       187.1     187.5     186.7
kozaiamp        180.0     180.0     180.0