Orbit Fit and Astrometric record for 14SW403

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: 14SW403   
# Created Fri Dec  3 02:12:42 2021
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   4.18y
# First observation: 2014/09/25
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000362   0.030945   0.000133   0.013162   0.029596   0.000000
# Chi-squared of fit:     5.15 DOF:     18 RMS:  0.12
# Min/Max residuals:    -0.29    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.615756E-05  3.105625E-02  6.906662E-06  1.325062E-02  2.931429E-02 -1.709966E-03
# Covariance matrix:
  6.6503E-13 -4.7297E-13  1.4365E-13 -1.8044E-13 -1.9848E-14 -2.7677E-12
 -4.7297E-13  6.0817E-13 -2.5659E-13  3.2331E-13  5.8406E-15  4.9399E-12
  1.4365E-13 -2.5659E-13  6.2705E-13 -3.4223E-13  5.7870E-14 -2.5062E-12
 -1.8044E-13  3.2331E-13 -3.4223E-13  2.9573E-13 -9.6250E-14  3.1947E-12
 -1.9848E-14  5.8406E-15  5.7870E-14 -9.6250E-14  6.8509E-13 -1.0236E-12
 -2.7677E-12  4.9399E-12 -2.5062E-12  3.1947E-12 -1.0236E-12  4.8107E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -27.612305   -3.019819   -0.084046   -0.464228   -0.887848  2456925.705528
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          348.49134 +/-     0.054
Argument of Peri:      324.67030 +/-     0.079
Long of Asc Node:       43.62592 +/-     0.001
Inclination:            34.92024 +/-     0.000
Eccentricity:         0.18096959 +/-    0.0001
Semi-Major Axis:     42.45707767 +/-    0.0065
Time of Perihelion: 2460150.8228 +/-      15.1
Perihelion:          34.77363792 +/-    0.0065
Aphelion:            50.14051741 +/-    0.0085
Period (y)              276.6517 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.18838359 +/-    0.0009
Ecliptic Y           -1.55940776 +/-    0.0001
Ecliptic Z          -15.81075024 +/-    0.0004
Ecliptic XDOT         0.00057963 +/-    0.0000
Ecliptic YDOT         0.00286916 +/-    0.0000
Ecliptic ZDOT         0.00117074 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.00181205 +/-    0.0008
Geocenter to KBO     34.11305265 +/-    0.0010
# Hcoef:  8.09

The following table shows the complete astrometric record for 14SW403. 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 (14SW403) followed by the observatory code and reference code for the source of the astrometry.

2014 09  25.20475  00 36 20.990  -26 20 49.82  23.4r 14SW403   W84  C~55S9      
2014 11  17.12093  00 31 28.107  -26 21 36.55  24.1r 14SW403   W84  C~55S9      
2016 09  05.35501  00 49 08.016  -23 11 24.18  23.7r 14SW403   W84  C~55S9      
2016 09  05.35638  00 49 07.999  -23 11 24.11  24.0g 14SW403   W84  C~55S9      
2016 09  06.38504  00 49 02.705  -23 12 05.40  24.1g 14SW403   W84  C~55S9      
2016 09  07.20141  00 48 58.432  -23 12 38.00  22.9z 14SW403   W84  C~55S9      
2016 10  08.16175  00 45 57.842  -23 28 00.55  23.6r 14SW403   W84  C~55S9      
2016 10  08.16311  00 45 57.844  -23 28 00.45  23.3i 14SW403   W84  C~55S9      
2016 10  28.13946  00 44 00.509  -23 30 46.76  23.7g 14SW403   W84  C~55S9      
2017 10  30.12079  00 49 10.964  -22 01 04.98  23.1z 14SW403   W84  C~55S9      
2018 11  29.07691  00 52 11.156  -20 23 23.72  23.5r 14SW403   W84  C~55S9      
2018 11  29.07829  00 52 11.154  -20 23 23.76  24.0g 14SW403   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     0.12       0.00     0.05
     2   0.1449  -3557.92    -0.11    1686.52    -0.09
     3   1.9470  14493.16     0.03    5395.14     0.09
     4   1.9470  14492.99    -0.03    5395.31     0.27
     5   1.9498  14408.73     0.17    5392.52    -0.04
     6   1.9521  14341.07    -0.29    5390.90    -0.12
     7   2.0368  11697.60     0.01    5718.85    -0.04
     8   2.0368  11697.67     0.20    5718.92     0.00
     9   2.0915  10181.77    -0.09    6309.61    -0.12
    10   3.0963  16504.19    -0.05    9131.75     0.03
    11   4.1776  21523.67     0.02   13186.34     0.03
    12   4.1776  21523.63     0.02   13186.31    -0.06

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.

14SW403    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.790    42.811    42.769
ecceobj         0.187     0.188     0.187
incobj         34.895    34.896    34.895
qmin           33.678    33.675    33.655
qmax           52.010    52.010    51.932
amean          42.642    42.684    42.616
amin           42.286    42.305    42.247
amax           43.055    43.109    43.030
emean           0.187     0.186     0.186
emin            0.166     0.164     0.165
emax            0.208     0.208     0.207
imean          34.045    34.073    34.049
imin           33.556    33.567    33.550
imax           34.497    34.494    34.489
excite_mean     0.590     0.590     0.590
fracstop        1.000     1.000     1.000
cjmean          2.644     2.644     2.644

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       169.8     173.3     169.6
kozaiamp        180.0     180.0     180.0