Orbit Fit and Astrometric record for 14FX71

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: 14FX71    
# Created Sat Dec  4 02:12:23 2021
# Orbit generated from Bernstein formalism
# Fitting     30 observations of     30
# Arc:   4.96y
# First observation: 2014/03/28
#  Last observation: 2019/03/13
Preliminary a, adot, b, bdot, g, gdot:
   0.000517   0.024715  -0.000010  -0.001306   0.023780   0.000000
# Chi-squared of fit:    69.99 DOF:     54 RMS:  0.27
# Min/Max residuals:    -0.66    0.71
# Exact a, adot, b, bdot, g, gdot:
  1.508582E-05  2.580730E-02 -1.284822E-06 -1.349037E-03  2.444329E-02  9.128368E-03
# Covariance matrix:
  1.8408E-13 -1.3286E-13 -5.6189E-15  4.3963E-15  9.9686E-14 -6.3301E-13
 -1.3286E-13  1.8628E-13  5.8938E-15 -7.6733E-15 -4.3881E-14  1.1908E-12
 -5.6189E-15  5.8938E-15  1.1488E-13 -3.0866E-14 -1.8782E-14  2.2867E-14
  4.3963E-15 -7.6733E-15 -3.0866E-14  1.5167E-14  5.0074E-16 -5.4821E-14
  9.9686E-14 -4.3881E-14 -1.8782E-14  5.0074E-16  6.1454E-13  3.2619E-13
 -6.3301E-13  1.1908E-12  2.2867E-14 -5.4821E-14  3.2619E-13  8.9298E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.879097  175.491336   -0.202208   -0.299547   -0.929003  2456744.534138
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:           25.13352 +/-     0.012
Argument of Peri:      193.87063 +/-     0.013
Long of Asc Node:      275.74194 +/-     0.001
Inclination:            17.71876 +/-     0.000
Eccentricity:         0.46366442 +/-    0.0002
Semi-Major Axis:     63.10531001 +/-    0.0185
Time of Perihelion: 2443957.0516 +/-       1.7
Perihelion:          33.84562292 +/-    0.0141
Aphelion:            92.36499711 +/-    0.0289
Period (y)              501.3108 +/-      0.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.80529713 +/-    0.0012
Ecliptic Y            2.93726654 +/-    0.0001
Ecliptic Z          -12.56014730 +/-    0.0004
Ecliptic XDOT        -0.00115663 +/-    0.0000
Ecliptic YDOT        -0.00281203 +/-    0.0000
Ecliptic ZDOT        -0.00045758 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.84311788 +/-    0.0012
Geocenter to KBO     40.91102338 +/-    0.0013
# Hcoef:  6.47

The following table shows the complete astrometric record for 14FX71. 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 (14FX71) followed by the observatory code and reference code for the source of the astrometry.

2014 03  28.03336  11 14 31.556  -14 35 27.43        14FX71    807  C~1Reu      
2014 03  28.03337  11 14 31.49   -14 35 27.4   22.9V 14FX71    W84  C~2J9u      
2014 03  28.10283  11 14 31.265  -14 35 25.08  22.1r 14FX71    807  C~1Reu      
2014 03  28.10284  11 14 31.18   -14 35 25.1         14FX71    W84  C~2J9u      
2014 03  28.17072  11 14 30.952  -14 35 23.15        14FX71    807  C~1Reu      
2014 03  28.17072  11 14 30.89   -14 35 22.9         14FX71    W84  C~2J9u      
2014 05  02.04148  11 12 30.316  -14 14 57.42  22.1r 14FX71    304  C~1Reu      
2014 05  02.06950  11 12 30.247  -14 14 56.62        14FX71    304  C~1Reu      
2014 05  22.97668  11 11 59.244  -14 03 45.24        14FX71    304  C~1Rev      
2015 04  17.99153  11 18 35.503  -15 03 32.03        14FX71    304  C~1Rev      
2015 04  18.99240  11 18 32.105  -15 02 56.01        14FX71    304  C~1Rev      
2016 02  04.40331  11 29 03.17   -16 10 33.9   22.5R 14FX71    G37  C~1lwf      
2016 02  04.48686  11 29 02.87   -16 10 33.6         14FX71    G37  C~1lwf      
2016 03  28.00355  11 25 16.26   -15 54 04.0   23.0V 14FX71    W84  C~1qn2      
2016 03  28.01049  11 25 16.25   -15 54 04.0         14FX71    W84  C~1qn2      
2016 03  28.01743  11 25 16.26   -15 54 03.9         14FX71    W84  C~1qn2      
2016 03  29.00169  11 25 11.92   -15 53 31.7         14FX71    W84  C~1qn2      
2016 03  29.00863  11 25 11.92   -15 53 31.9         14FX71    W84  C~1qn2      
2016 03  29.01557  11 25 11.92   -15 53 31.9         14FX71    W84  C~1qn2      
2016 03  30.02799  11 25 07.51   -15 52 58.7         14FX71    W84  C~1qn2      
2016 03  30.03493  11 25 07.51   -15 52 58.7         14FX71    W84  C~1qn2      
2016 03  30.04187  11 25 07.52   -15 52 58.7         14FX71    W84  C~1qn2      
2019 02  16.20248  11 43 53.16   -17 57 25.3   21.5R 14FX71    304  C~30mI      
2019 02  16.22136  11 43 53.10   -17 57 25.2   21.5R 14FX71    304  C~30mI      
2019 02  16.23987  11 43 53.03   -17 57 24.9   21.5R 14FX71    304  C~30mI      
2019 02  19.25021  11 43 41.22   -17 56 58.4   29.7R 14FX71    304  C~30mI      
2019 02  19.27241  11 43 41.14   -17 56 57.9   22.0R 14FX71    304  C~30mI      
2019 03  13.22628  11 42 06.43   -17 50 45.8   22.7  14FX71    304  C~31Ga      
2019 03  13.23229  11 42 06.41   -17 50 45.8   22.9  14FX71    304  C~31Ga      
2019 03  13.23830  11 42 06.39   -17 50 45.7   23.0  14FX71    304  C~31Ga      

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     0.33       0.00     0.09
     2   0.0000     -0.89    -0.55      -0.37    -0.28
     3   0.0002     -4.82     0.50       0.41     0.25
     4   0.0002     -5.93    -0.62      -0.11    -0.28
     5   0.0004    -10.68    -0.48       0.17    -0.25
     6   0.0004     -9.75     0.44       0.31    -0.11
     7   0.0958  -2111.17     0.35     397.98     0.07
     8   0.0959  -2112.42     0.40     398.30    -0.10
     9   0.1532  -2800.02    -0.34     824.30     0.39
    10   1.0567   3917.32     0.10     -96.05    -0.00
    11   1.0594   3857.70    -0.22     -83.09    -0.01
    12   1.8573  13856.60     0.05    -154.73    -0.02
    13   1.8575  13852.49    -0.02    -156.17     0.10
    14   2.0013  10449.18    -0.41    -543.23     0.07
    15   2.0013  10449.05    -0.05    -543.29    -0.01
    16   2.0013  10449.14     0.53    -543.14     0.11
    17   2.0040  10378.71    -0.66    -538.55     0.21
    18   2.0040  10378.79    -0.09    -538.73    -0.00
    19   2.0041  10378.79     0.40    -538.73    -0.03
    20   2.0068  10307.02    -0.41    -533.64     0.01
    21   2.0068  10307.02     0.08    -533.64    -0.02
    22   2.0069  10307.16     0.71    -533.58     0.01
    23   4.8903  28257.50    -0.11   -1155.70    -0.08
    24   4.8903  28256.66     0.10   -1155.93    -0.04
    25   4.8904  28255.60     0.08   -1156.03     0.12
    26   4.8986  28086.43    -0.02   -1195.29    -0.14
    27   4.8987  28085.16     0.01   -1195.25     0.18
    28   4.9588  26668.40    -0.17   -1362.49    -0.01
    29   4.9588  26668.13    -0.02   -1362.60    -0.10
    30   4.9588  26667.82     0.10   -1362.62    -0.10

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.

14FX71    quality flag:3

Type:          3:1EE     3:1EE     3:1EE

axisobj        62.492    62.549    62.434
ecceobj         0.460     0.460     0.459
incobj         17.714    17.714    17.714
qmin           33.222    33.073    33.209
qmax           93.929    93.885    94.119
amean          62.629    62.629    62.628
amin           61.639    61.680    61.622
amax           63.938    63.890    63.989
emean           0.455     0.457     0.458
emin            0.440     0.442     0.445
emax            0.470     0.472     0.472
imean          19.733    19.495    19.429
imin           19.170    18.933    19.077
imax           20.165    20.026    19.856
excite_mean     0.566     0.566     0.566
fracstop        1.000     1.000     1.000
cjmean          2.898     2.898     2.898

libcent 0       263.1     266.9     180.6
libamp  0        71.8      66.1     155.3
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       175.7     187.3     184.3
kozaiamp        180.0     180.0     180.0