Orbit Fit and Astrometric record for 14FA72

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: 14FA72    
# Created Thu Oct 19 01:38:21 2017
# Orbit generated from Bernstein formalism
# Fitting   10 observations of   11
# Arc:   2.11y
# First observation: 2014/03/25
#  Last observation: 2016/05/03
Preliminary a, adot, b, bdot, g, gdot:
   0.000013   0.014179  -0.000001  -0.000857   0.018273   0.000000
# Chi-squared of fit:     4.87 DOF:   14 RMS:  0.12
# Min/Max residuals:    -0.18    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.270690E-05  1.432430E-02 -1.692713E-07 -8.682591E-04  1.833737E-02  6.128451E-03
# Covariance matrix:
  4.9061E-13 -2.7503E-13 -5.2961E-15  2.0747E-14  7.2724E-13 -1.4586E-11
 -2.7503E-13  2.9931E-12  2.2669E-14 -2.3538E-13  9.5156E-13  1.4948E-10
 -5.2961E-15  2.2669E-14  2.4433E-13 -1.4761E-13 -5.8125E-15  1.3565E-12
  2.0747E-14 -2.3538E-13 -1.4761E-13  2.4196E-13 -4.9536E-14 -1.3003E-11
  7.2724E-13  9.5156E-13 -5.8125E-15 -4.9536E-14  2.8030E-12  2.6931E-11
 -1.4586E-11  1.4948E-10  1.3565E-12 -1.3003E-11  2.6931E-11  8.3021E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.776666 -170.924424    0.083019   -0.065240   -0.990282  2456741.607438
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:           64.22330 +/-     0.667
Argument of Peri:      116.70154 +/-     0.297
Long of Asc Node:      322.24512 +/-     0.016
Inclination:             5.08672 +/-     0.001
Eccentricity:         0.39364701 +/-    0.0051
Semi-Major Axis:     56.79487972 +/-    0.2816
Time of Perihelion: 2428850.2576 +/-     202.3
Perihelion:          34.43774500 +/-    0.3367
Aphelion:            79.15201444 +/-    0.4880
Period (y)              428.0278 +/-      3.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -54.72826910 +/-    0.0049
Ecliptic Y           -8.65647090 +/-    0.0008
Ecliptic Z           -3.59201747 +/-    0.0003
Ecliptic XDOT        -0.00056141 +/-    0.0000
Ecliptic YDOT        -0.00225775 +/-    0.0000
Ecliptic ZDOT        -0.00018949 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   55.52495400 +/-    0.0048
Geocenter to KBO     54.53344637 +/-    0.0050
# Hcoef:  7.28

The following table shows the complete astrometric record for 14FA72. 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 (14FA72) followed by the observatory code and reference code for the source of the astrometry.

2014 03  25.10666  12 27 21.794  -07 04 03.35  24.5r 14FA72    807  C~1u56      
2014 03  25.17147  12 27 21.575  -07 04 01.87        14FA72    807  C~1u56      
2014 03  25.23756  12 27 21.326  -07 04 00.60        14FA72    807  C~1u56      
2014 05  01.03417  12 25 19.020  -06 50 37.81        14FA72    304  C~1u56      
2014 05  02.01370  12 25 16.216  -06 50 18.08  24.6r 14FA72    304  C~1u56      
2014 05  02.10060  12 25 15.974  -06 50 16.36        14FA72    304  C~1u56      
2015 04  19.09357  12 28 53.522  -07 17 04.25        14FA72    304  C~1u56      
2015 04  19.22650  12 28 53.098  -07 17 01.07        14FA72    304  C~1u56      
2015 04  20.19417  12 28 49.930  -07 16 40.17        14FA72    304  C~1u56      
2016 05  03.04542  12 31 04.159  -07 33 47.68  24.6r 14FA72    304  C~2ADo      
2016 05  03.17953  12 31 03.774  -07 33 44.96        14FA72    304  C~2ADo      

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    -0.07       0.00    -0.12
  2   0.0002     -3.58     0.08       0.07     0.03
  3   0.0004     -7.49    -0.02      -0.23    -0.18
  4   0.1011  -1997.67     0.19      15.12     0.09
  5   0.1038  -2043.84    -0.15      16.66    -0.03
  6   0.1040  -2047.83    -0.04      16.80    -0.00
  7   1.0677   1562.70     0.15    -177.45     0.21
  8   1.0681   1555.65 (   0.27)   -177.02 (   0.57)
  9   1.0707   1504.08    -0.11    -176.44     0.25
 10   2.1080   3744.46     0.02    -333.01    -0.14
 11   2.1083   3738.13    -0.04    -332.77    -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.

14FA72    quality flag:2

Type:       SCATNEAR  SCATNEAR    5:2EEE

axisobj        56.332    57.152    55.566
ecceobj         0.394     0.408     0.380
incobj          5.102     5.103     5.101
qmin           32.320    32.647    34.157
qmax           82.348    87.931    78.409
amean          56.292    57.940    55.464
amin           54.465    56.084    54.558
amax           58.212    60.667    56.563
emean           0.396     0.418     0.373
emin            0.372     0.394     0.361
emax            0.425     0.450     0.386
imean           6.165     6.852     6.416
imin            4.704     5.460     6.214
imax            9.191     8.312     6.606
excite_mean     0.411     0.435     0.390
fracstop        1.000     1.000     1.000
cjmean          3.030     3.021     3.045

libcent 0      -180.0    -180.0     179.6
libamp  0      -180.0    -180.0     151.0
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       184.1     190.4     181.2
kozaiamp        180.0     180.0     180.0