Orbit Fit and Astrometric record for 14SE404

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: 14SE404   
# Created Wed Dec  8 02:12:47 2021
# Orbit generated from Bernstein formalism
# Fitting      9 observations of      9
# Arc:   1.99y
# First observation: 2014/09/27
#  Last observation: 2016/09/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000008   0.020944  -0.000018   0.014323   0.022645   0.000000
# Chi-squared of fit:     1.38 DOF:     12 RMS:  0.07
# Min/Max residuals:    -0.13    0.12
# Exact a, adot, b, bdot, g, gdot:
  1.517762E-05  2.086474E-02  1.055484E-05  1.426036E-02  2.266864E-02 -9.652272E-04
# Covariance matrix:
  3.5362E-13 -6.7505E-13 -6.9007E-14 -1.5305E-13  1.0750E-12 -1.0074E-11
 -6.7505E-13  4.0832E-12  1.0297E-14  1.9477E-12 -2.6924E-12  8.8579E-11
 -6.9007E-14  1.0297E-14  3.5827E-13 -3.5217E-13 -1.1931E-12 -2.8579E-12
 -1.5305E-13  1.9477E-12 -3.5217E-13  1.6937E-12  5.0494E-13  5.1556E-11
  1.0750E-12 -2.6924E-12 -1.1931E-12  5.0494E-13  1.4441E-11 -3.1637E-11
 -1.0074E-11  8.8579E-11 -2.8579E-12  5.1556E-11 -3.1637E-11  2.2018E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.404540  -55.682006   -0.863286   -0.212342   -0.468344  2456927.508108
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          358.48390 +/-     0.146
Argument of Peri:      325.80580 +/-     0.372
Long of Asc Node:      335.88580 +/-     0.002
Inclination:            41.55212 +/-     0.001
Eccentricity:         0.40169628 +/-    0.0007
Semi-Major Axis:     74.47702088 +/-    0.1029
Time of Perihelion: 2457909.1839 +/-      94.9
Perihelion:          44.55987841 +/-    0.0814
Aphelion:           104.39416335 +/-    0.1538
Period (y)              642.7494 +/-      1.33
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           23.64970615 +/-    0.0038
Ecliptic Y          -33.11560323 +/-    0.0056
Ecliptic Z          -18.22638210 +/-    0.0030
Ecliptic XDOT         0.00241802 +/-    0.0000
Ecliptic YDOT         0.00091606 +/-    0.0000
Ecliptic ZDOT         0.00161672 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.58870689 +/-    0.0048
Geocenter to KBO     44.11381166 +/-    0.0074
# Hcoef:  7.39

The following table shows the complete astrometric record for 14SE404. 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 (14SE404) followed by the observatory code and reference code for the source of the astrometry.

2014 09  27.00733  20 57 17.263  -42 42 28.34  24.1r 14SE404   W84  C~55S9      
2014 10  02.07153  20 57 01.102  -42 40 05.78  23.6i 14SE404   W84  C~55S9      
2014 10  13.10419  20 56 35.198  -42 34 04.02  24.0r 14SE404   W84  C~55S9      
2014 10  14.02813  20 56 33.651  -42 33 30.83  23.9i 14SE404   W84  C~55S9      
2014 10  21.01845  20 56 25.024  -42 29 05.05  24.2r 14SE404   W84  C~55S9      
2014 10  26.02513  20 56 22.347  -42 25 40.72  23.8r 14SE404   W84  C~55S9      
2015 09  13.07997  21 03 00.168  -41 38 14.91  23.7r 14SE404   W84  C~55S9      
2015 09  13.08135  21 03 00.167  -41 38 14.79  23.9g 14SE404   W84  C~55S9      
2016 09  23.01008  21 06 49.682  -40 24 56.52  23.8i 14SE404   W84  C~55S9      

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    -0.13       0.00    -0.13
     2   0.0139   -126.26     0.07     190.09     0.08
     3   0.0441   -288.76    -0.07     621.63     0.10
     4   0.0466   -294.99    -0.02     658.44    -0.01
     5   0.0657   -305.36     0.12     940.62    -0.06
     6   0.0794   -271.75     0.02    1144.34     0.04
     7   0.9612   4828.05    -0.04    2466.20    -0.05
     8   0.9612   4828.08     0.05    2466.32     0.02
     9   1.9904   8724.33    -0.01    5781.06     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.

14SE404    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        74.589    74.905    74.279
ecceobj         0.403     0.405     0.401
incobj         41.465    41.463    41.468
qmin           43.152    43.263    43.163
qmax          108.289   109.010   107.489
amean          74.929    75.260    74.618
amin           74.052    74.365    73.767
amax           76.095    76.463    75.767
emean           0.404     0.406     0.402
emin            0.393     0.395     0.391
emax            0.423     0.426     0.419
imean          42.556    42.557    42.555
imin           42.084    42.086    42.103
imax           42.942    42.953    42.942
excite_mean     0.788     0.789     0.787
fracstop        1.000     1.000     1.000
cjmean          2.527     2.528     2.526

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       136.1     136.5     135.2
kozaiamp        180.0     180.0     180.0