Orbit Fit and Astrometric record for 14UE278

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: 14UE278   
# Created Thu Dec  9 02:12:49 2021
# Orbit generated from Bernstein formalism
# Fitting     14 observations of     14
# Arc:   4.09y
# First observation: 2013/11/05
#  Last observation: 2017/12/08
Preliminary a, adot, b, bdot, g, gdot:
   0.000095   0.023642  -0.000021  -0.008426   0.024229   0.000000
# Chi-squared of fit:     6.59 DOF:     22 RMS:  0.12
# Min/Max residuals:    -0.27    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.604289E-05  2.401173E-02 -5.011951E-06 -8.548439E-03  2.450925E-02  3.552360E-03
# Covariance matrix:
  4.2267E-13 -3.6561E-13 -4.0350E-14  9.5549E-14 -1.5230E-13 -2.7960E-12
 -3.6561E-13  6.9342E-13  9.6767E-14 -2.2952E-13  3.7242E-13  6.7151E-12
 -4.0350E-14  9.6767E-14  3.2476E-13 -1.2969E-13  4.7951E-14  1.0005E-12
  9.5549E-14 -2.2952E-13 -1.2969E-13  1.2621E-13 -1.3685E-13 -2.3776E-12
 -1.5230E-13  3.7242E-13  4.7951E-14 -1.3685E-13  6.2944E-13  3.9384E-12
 -2.7960E-12  6.7151E-12  1.0005E-12 -2.3776E-12  3.9384E-12  6.9550E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.276217   36.334664   -0.106768   -0.175528   -0.968885  2456601.609098
# Heliocentric elements and errors
Epoch:              2456600.5000  =  2013/11/04
Mean Anomaly:           31.06880 +/-     0.035
Argument of Peri:      160.45556 +/-     0.067
Long of Asc Node:      190.42375 +/-     0.001
Inclination:            21.93786 +/-     0.000
Eccentricity:         0.21544261 +/-    0.0003
Semi-Major Axis:     50.19874648 +/-    0.0090
Time of Perihelion: 2445389.1052 +/-      12.2
Perihelion:          39.38379727 +/-    0.0161
Aphelion:            61.01369568 +/-    0.0182
Period (y)              355.6702 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           33.06965847 +/-    0.0010
Ecliptic Y           24.45910660 +/-    0.0008
Ecliptic Z           -7.27887720 +/-    0.0002
Ecliptic XDOT        -0.00141811 +/-    0.0000
Ecliptic YDOT         0.00228950 +/-    0.0000
Ecliptic ZDOT        -0.00101025 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.77118936 +/-    0.0009
Geocenter to KBO     40.80091690 +/-    0.0013
# Hcoef:  7.31

The following table shows the complete astrometric record for 14UE278. 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 (14UE278) followed by the observatory code and reference code for the source of the astrometry.

2013 11  05.10832  02 29 34.08   +03 54 44.3   23.9r 14UE278   W84  C~55Si      
2013 11  05.20237  02 29 33.65   +03 54 42.0         14UE278   W84  C~55Si      
2013 11  05.25807  02 29 33.38   +03 54 40.5         14UE278   W84  C~55Si      
2014 10  21.30166  02 36 32.700  +04 00 22.90  24.2g 14UE278   W84  C~55Si      
2014 10  21.30304  02 36 32.697  +04 00 22.77  24.1r 14UE278   W84  C~55Si      
2015 01  20.05038  02 31 40.582  +03 42 16.01  23.0i 14UE278   W84  C~55Si      
2015 12  15.16239  02 38 27.774  +03 39 55.77  23.5r 14UE278   W84  C~55Si      
2016 09  10.36850  02 50 20.803  +04 17 16.12  23.5r 14UE278   W84  C~55Si      
2016 09  10.36988  02 50 20.803  +04 17 16.17  23.8g 14UE278   W84  C~55Si      
2016 11  10.25323  02 46 30.960  +03 47 44.42  22.6i 14UE278   W84  C~55Si      
2017 09  24.38576  02 55 24.433  +04 08 25.45  23.4r 14UE278   W84  C~55Si      
2017 10  26.29470  02 53 21.770  +03 52 27.83  23.8g 14UE278   W84  C~55Si      
2017 12  08.04210  02 50 13.979  +03 37 36.00  23.3i 14UE278   W84  C~55Si      
2017 12  08.12753  02 50 13.641  +03 37 34.90  24.3g 14UE278   W84  C~55Si      

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    -0.11       0.00    -0.10
     2   0.0003     -6.83     0.07      -0.11     0.02
     3   0.0004    -11.14    -0.09      -0.23     0.04
     4   0.9588   6044.79    -0.01   -1685.54     0.14
     5   0.9588   6044.71     0.01   -1685.65     0.04
     6   1.2072   1553.14     0.26   -1316.32    -0.27
     7   2.1083   7287.39    -0.19   -3399.33    -0.01
     8   2.8481  18163.55     0.01   -4665.82     0.16
     9   2.8481  18163.57     0.08   -4665.78     0.23
    10   3.0148  14316.66     0.08   -5259.52    -0.02
    11   3.8858  22352.92    -0.01   -6613.80    -0.01
    12   3.9731  20287.20     0.02   -6945.13    -0.26
    13   4.0902  17312.28     0.01   -6901.31     0.06
    14   4.0904  17307.09    -0.13   -6900.75    -0.01

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.

14UE278    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        50.543    50.572    50.515
ecceobj         0.222     0.222     0.221
incobj         21.876    21.877    21.876
qmin           38.443    38.002    38.733
qmax           62.174    62.613    61.887
amean          50.045    50.090    50.045
amin           49.591    49.632    49.608
amax           50.578    50.617    50.565
emean           0.216     0.221     0.214
emin            0.204     0.205     0.205
emax            0.230     0.238     0.224
imean          21.843    21.730    21.903
imin           21.686    21.228    21.687
imax           22.023    22.074    22.120
excite_mean     0.430     0.431     0.430
fracstop        1.000     1.000     1.000
cjmean          2.938     2.938     2.938

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       179.3     185.4     183.8
kozaiamp        180.0     179.9     180.0