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 Sun Oct 22 01:38:22 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 -4.650233E-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:         0.98670371 +/-    0.0054
Semi-Major Axis:   2715.85112979 +/- 1097.7137
Time of Perihelion: 2439096.3482 +/-      45.3
Perihelion:          36.11074478 +/-   20.7056
Aphelion:          5395.59151480 +/- 2180.8813
Period (y)           141536.0733 +/-  85810.72
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -58.08167469 +/-    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   59.61194702 +/-    0.0027
Geocenter to KBO     58.63310679 +/-    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      1600.298  1600.820  1599.777
ecceobj         0.977     0.977     0.977
incobj         20.667    20.667    20.667
qmin           21.252    21.107    21.651
qmax         6911.620  6466.921  6390.816
amean        1838.745  1895.454  1761.809
amin         1434.780  1429.590  1368.332
amax         3473.961  3251.556  3213.516
emean           0.980     0.981     0.979
emin            0.968     0.969     0.967
emax            0.990     0.989     0.989
imean          21.896    21.893    21.885
imin           18.527    18.556    18.621
imax           26.682    26.743    26.603
excite_mean     1.049     1.049     1.048
fracstop        1.000     1.000     1.000
cjmean          2.883     2.883     2.883

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       134.8     134.6     134.8
kozaiamp         10.0      10.3       9.7