Orbit Fit and Astrometric record for 14FG72

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: 14FG72    
# Created Tue Oct 17 01:38:21 2017
# Orbit generated from Bernstein formalism
# Fitting    7 observations of    7
# Arc:   1.07y
# First observation: 2014/03/24
#  Last observation: 2015/04/20
Preliminary a, adot, b, bdot, g, gdot:
   0.000001   0.011955  -0.000000   0.006868   0.018227   0.000000
# Chi-squared of fit:     1.34 DOF:    8 RMS:  0.08
# Min/Max residuals:    -0.19    0.13
# Exact a, adot, b, bdot, g, gdot:
  1.131059E-05  1.203010E-02  5.979179E-06  6.903576E-03  1.835185E-02  1.301766E-03
# Covariance matrix:
  4.8924E-13 -8.5207E-13 -5.3383E-15 -9.5796E-13  6.2123E-13 -1.0448E-10
 -8.5207E-13  6.2218E-11 -3.0900E-12  7.8577E-11  2.4025E-11  8.8630E-09
 -5.3383E-15 -3.0900E-12  4.8146E-13 -4.2335E-12 -1.3724E-12 -4.4171E-10
 -9.5796E-13  7.8577E-11 -4.2335E-12  1.0225E-10  2.9419E-11  1.1418E-08
  6.2123E-13  2.4025E-11 -1.3724E-12  2.9419E-11  1.3576E-11  3.3361E-09
 -1.0448E-10  8.8630E-09 -4.4171E-10  1.1418E-08  3.3361E-09  1.2872E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
  -19.172488  163.327297   -0.338666   -0.307318   -0.884275  2456740.521778
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:          145.79614 +/-    16.479
Argument of Peri:      168.64633 +/-    16.229
Long of Asc Node:      192.99725 +/-     0.012
Inclination:            34.90439 +/-     0.010
Eccentricity:         0.21323907 +/-    0.0257
Semi-Major Axis:     46.63107596 +/-    0.5247
Time of Perihelion: 2409636.7893 +/-    5264.3
Perihelion:          36.68750855 +/-    1.2696
Aphelion:            56.57464338 +/-    1.3590
Period (y)              318.4354 +/-      5.37
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -50.30001279 +/-    0.0099
Ecliptic Y           14.71204817 +/-    0.0030
Ecliptic Z          -17.89508988 +/-    0.0036
Ecliptic XDOT        -0.00102027 +/-    0.0002
Ecliptic YDOT        -0.00157277 +/-    0.0000
Ecliptic ZDOT         0.00090915 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   55.37842441 +/-    0.0091
Geocenter to KBO     54.49041167 +/-    0.0109
# Hcoef:  6.87

The following table shows the complete astrometric record for 14FG72. 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 (14FG72) followed by the observatory code and reference code for the source of the astrometry.

2014 03  24.02100  10 29 02.072  -11 09 29.64        14FG72    807  C~1x8j      
2014 03  24.08272  10 29 01.896  -11 09 27.76        14FG72    807  C~1x8j      
2014 03  24.14068  10 29 01.702  -11 09 26.06        14FG72    807  C~1x8j      
2014 05  01.05129  10 27 35.186  -10 49 06.17  24.2r 14FG72    304  C~1x8j      
2014 05  01.13282  10 27 35.082  -10 49 03.56        14FG72    304  C~1x8j      
2015 04  19.10893  10 31 07.000  -10 49 47.36        14FG72    304  C~1x8j      
2015 04  20.13435  10 31 04.976  -10 49 14.24        14FG72    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    -0.19       0.00    -0.01
  2   0.0002     -3.12     0.13       0.73     0.07
  3   0.0003     -6.41     0.07       1.18    -0.08
  4   0.1041  -1654.56     0.02     629.52    -0.04
  5   0.1043  -1656.99    -0.02     631.33     0.05
  6   1.0707   1237.53     0.01    1802.92    -0.07
  7   1.0735   1197.22    -0.01    1821.93     0.07

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.

14FG72    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        46.431    49.889    46.049
ecceobj         0.219     0.336     0.204
incobj         35.019    35.043    35.005
qmin           35.145    30.548    35.777
qmax           58.344    69.258    56.702
amean          46.502    49.357    46.112
amin           46.104    48.088    45.743
amax           46.976    50.380    46.551
emean           0.224     0.353     0.204
emin            0.207     0.325     0.188
emax            0.242     0.379     0.220
imean          34.814    34.144    34.894
imin           34.454    33.399    34.544
imax           35.243    35.060    35.285
excite_mean     0.613     0.663     0.607
fracstop        1.000     1.000     1.000
cjmean          2.636     2.593     2.640

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       203.5     205.4     208.8
kozaiamp        180.0     179.9     180.0