Orbit Fit and Astrometric record for 14FE72

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: 14FE72    
# Created Wed Dec 13 02:37:59 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   1.71y
# First observation: 2014/03/26
#  Last observation: 2015/12/09
Preliminary a, adot, b, bdot, g, gdot:
   0.000048   0.013746  -0.000009  -0.004457   0.016755   0.000000
# Chi-squared of fit:    25.52 DOF:   24 RMS:  0.23
# Min/Max residuals:    -0.38    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.316971E-05  1.448773E-02 -4.650221E-06 -4.581015E-03  1.705521E-02  1.220234E-02
# Covariance matrix:
  2.0704E-13 -5.2399E-13 -6.5774E-15  1.8405E-14  7.6261E-14 -9.2842E-12
 -5.2399E-13  5.5601E-12  4.4623E-14 -5.8811E-13  7.1896E-13  1.5289E-10
 -6.5774E-15  4.4623E-14  1.4669E-13 -1.2139E-13 -7.7287E-15  1.0364E-12
  1.8405E-14 -5.8811E-13 -1.2139E-13  4.0193E-13 -1.9952E-13 -1.9396E-11
  7.6261E-14  7.1896E-13 -7.7287E-15 -1.9952E-13  6.7983E-13  3.2008E-11
 -9.2842E-12  1.5289E-10  1.0364E-12 -1.9396E-11  3.2008E-11  4.6642E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -10.988660 -172.675342    0.035342   -0.189649   -0.977363  2456742.613198
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:            0.12287 +/-     0.074
Argument of Peri:      134.10737 +/-     0.051
Long of Asc Node:      336.76348 +/-     0.004
Inclination:            20.59615 +/-     0.002
Eccentricity:         0.98670369 +/-    0.0054
Semi-Major Axis:   2715.84784102 +/- 1097.7110
Time of Perihelion: 2439096.3480 +/-      45.3
Perihelion:          36.11074499 +/-   20.7055
Aphelion:          5395.58493706 +/- 2180.8760
Period (y)           141535.8162 +/-  85810.45
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -58.08167467 +/-    0.0028
Ecliptic Y           -7.42875413 +/-    0.0004
Ecliptic Z          -11.17662313 +/-    0.0005
Ecliptic XDOT        -0.00147728 +/-    0.0000
Ecliptic YDOT        -0.00253718 +/-    0.0000
Ecliptic ZDOT        -0.00109515 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   59.61194699 +/-    0.0027
Geocenter to KBO     58.63310677 +/-    0.0028
# Hcoef:  6.22

The following table shows the complete astrometric record for 14FE72. 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 (14FE72) followed by the observatory code and reference code for the source of the astrometry.

2014 03  26.11242  12 09 10.566  -12 59 00.28        14FE72    807  C~1x8j      
2014 03  26.11243  12 09 10.53   -12 59 00.5         14FE72    W84  C~2J9u      
2014 03  26.17955  12 09 10.350  -12 58 59.36  23.9r 14FE72    807  C~1x8j      
2014 03  26.17955  12 09 10.30   -12 58 59.3   24.3V 14FE72    W84  C~2J9u      
2014 03  26.24892  12 09 10.105  -12 58 58.12        14FE72    807  C~1x8j      
2014 03  26.24892  12 09 10.07   -12 58 58.1         14FE72    W84  C~2J9u      
2014 05  01.01810  12 07 20.554  -12 46 56.00        14FE72    304  C~1x8j      
2014 05  01.10303  12 07 20.334  -12 46 54.05  23.6r 14FE72    304  C~1x8j      
2014 05  02.12025  12 07 17.756  -12 46 33.52        14FE72    304  C~1x8j      
2014 07  19.97907  12 06 51.593  -12 33 19.07        14FE72    I11  C~1x8j      
2014 07  20.04487  12 06 51.719  -12 33 19.13  23.7r 14FE72    I11  C~1x8j      
2015 01  18.29839  12 14 42.953  -13 40 26.48        14FE72    I11  C~1x8j      
2015 01  21.28680  12 14 39.469  -13 40 47.50        14FE72    I11  C~1x8j      
2015 12  09.31751  12 17 06.518  -14 02 02.66        14FE72    304  C~1x8j      
2015 12  09.34646  12 17 06.536  -14 02 03.32        14FE72    304  C~1x8j      

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     0.05       0.00     0.08
  2   0.0000     -0.39    -0.34      -0.41    -0.33
  3   0.0002     -3.95    -0.33      -0.68    -0.36
  4   0.0002     -3.26     0.36      -0.44    -0.11
  5   0.0004     -7.51    -0.21      -0.94    -0.38
  6   0.0004     -7.04     0.27      -0.75    -0.19
  7   0.0983  -1764.19     0.20       9.37     0.17
  8   0.0985  -1767.92     0.10       9.85     0.37
  9   0.1013  -1810.73    -0.15      13.27     0.14
 10   0.3172  -2483.73     0.09     583.34     0.22
 11   0.3174  -2482.02    -0.04     584.03     0.42
 12   0.8164   5443.04    -0.12    -324.13     0.05
 13   0.8246   5404.87     0.16    -363.72     0.21
 14   1.7062   7879.84     0.16    -679.69    -0.09
 15   1.7063   7880.35    -0.20    -680.19    -0.20

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.

14FE72    quality flag:3

Type:       CENTAURS  CENTAURS  CENTAURS

axisobj      1887.547  1888.275  1886.820
ecceobj         0.981     0.981     0.981
incobj         20.663    20.663    20.663
qmin           17.019    20.724    20.260
qmax         9762.981  8019.942  7495.277
amean        2089.029  1966.252  2076.653
amin         1514.146  1621.442  1609.635
amax         4899.545  4028.037  3765.695
emean           0.982     0.981     0.982
emin            0.970     0.971     0.972
emax            0.994     0.991     0.991
imean          21.935    21.904    21.929
imin           17.834    18.371    18.377
imax           28.507    27.611    27.328
excite_mean     1.051     1.050     1.051
fracstop        1.000     1.000     1.000
cjmean          2.881     2.881     2.881

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       134.5     134.6     134.6
kozaiamp         12.7      11.0      11.1