Orbit Fit and Astrometric record for 14FJ72

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: 14FJ72    
# Created Tue Dec 12 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   11 observations of   13
# Arc:   1.71y
# First observation: 2014/03/24
#  Last observation: 2015/12/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.000028   0.009938   0.000003  -0.001605   0.014325   0.000000
# Chi-squared of fit:     6.96 DOF:   16 RMS:  0.14
# Min/Max residuals:    -0.33    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.083349E-05  1.026170E-02 -9.479715E-07 -1.633614E-03  1.463062E-02  7.026327E-03
# Covariance matrix:
  3.5982E-13  1.2644E-13 -3.8293E-14 -6.2201E-14  6.2610E-13  2.2217E-11
  1.2644E-13  2.3708E-11 -4.4993E-13 -4.5667E-13  9.2103E-12  8.9900E-10
 -3.8293E-14 -4.4993E-13  2.0434E-13 -1.1638E-13 -2.8090E-13 -1.9715E-11
 -6.2201E-14 -4.5667E-13 -1.1638E-13  3.8166E-13 -3.5777E-13 -2.1693E-11
  6.2610E-13  9.2103E-12 -2.8090E-13 -3.5777E-13  5.2589E-12  3.9220E-10
  2.2217E-11  8.9900E-10 -1.9715E-11 -2.1693E-11  3.9220E-10  3.5477E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -12.583335  175.695391   -0.130950   -0.214876   -0.963225  2456740.559938
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:           30.29972 +/-     1.490
Argument of Peri:      133.67843 +/-     0.314
Long of Asc Node:      302.50769 +/-     0.011
Inclination:            15.34179 +/-     0.002
Eccentricity:         0.61341724 +/-    0.0157
Semi-Major Axis:     98.58017595 +/-    3.0789
Time of Perihelion: 2426650.7283 +/-     450.2
Perihelion:          38.10939680 +/-    1.9545
Aphelion:           159.05095511 +/-    5.2039
Period (y)              978.7969 +/-     45.86
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -67.51534877 +/-    0.0104
Ecliptic Y            4.95184359 +/-    0.0008
Ecliptic Z          -14.89074121 +/-    0.0023
Ecliptic XDOT        -0.00136298 +/-    0.0000
Ecliptic YDOT        -0.00182671 +/-    0.0000
Ecliptic ZDOT        -0.00058468 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   69.31505787 +/-    0.0102
Geocenter to KBO     68.34982174 +/-    0.0107
# Hcoef:  5.66

The following table shows the complete astrometric record for 14FJ72. 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 (14FJ72) followed by the observatory code and reference code for the source of the astrometry.

2014 03  24.05916  11 24 03.769  -09 49 51.57  24.0r 14FJ72    807  C~1x8j      
2014 03  24.11788  11 24 03.607  -09 49 50.42        14FJ72    807  C~1x8j      
2014 03  24.17792  11 24 03.427  -09 49 49.21        14FJ72    807  C~1x8j      
2014 03  27.05982  11 23 55.320  -09 48 54.30        14FJ72    807  C~1x8j      
2014 05  01.01302  11 22 33.535  -09 37 26.96        14FJ72    304  C~1x8j      
2014 05  01.09751  11 22 33.388  -09 37 25.41  23.8r 14FJ72    304  C~1x8j      
2014 05  02.02767  11 22 31.800  -09 37 08.31        14FJ72    304  C~1x8j      
2014 07  18.98230  11 22 51.797  -09 26 23.85        14FJ72    I11  C~1x8j      
2014 07  19.98736  11 22 53.986  -09 26 28.82        14FJ72    I11  C~1x8j      
2015 01  18.30596  11 28 49.618  -10 20 03.88        14FJ72    I11  C~1x8j      
2015 01  21.28026  11 28 44.698  -10 20 06.27        14FJ72    I11  C~1x8j      
2015 12  09.31077  11 31 08.375  -10 32 21.08        14FJ72    304  C~1x8j      
2015 12  09.34055  11 31 08.407  -10 32 21.75        14FJ72    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    -0.17
  2   0.0002     -2.65     0.13       0.09    -0.08
  3   0.0003     -5.58    -0.00       0.13    -0.05
  4   0.0082   -137.37    -0.06       2.15     0.03
  5   0.1039  -1521.04    -0.09     143.72     0.30
  6   0.1041  -1523.65    -0.04     144.26     0.29
  7   0.1067  -1552.04    -0.01     150.43     0.05
  8   0.3201  -1541.41     0.13     859.48    -0.33
  9   0.3229  -1509.77    -0.12     868.00    -0.08
 10   0.8220   4594.72 (  -0.52)     32.18 (   0.86)
 11   0.8302   4529.08 (  -0.86)      0.99 (   0.63)
 12   1.7118   6767.55    -0.13     171.57     0.05
 13   1.7119   6768.25     0.14     171.15    -0.01

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.

14FJ72    quality flag:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        97.460   107.484    89.699
ecceobj         0.612     0.658     0.567
incobj         15.370    15.369    15.370
qmin           36.805    35.929    37.947
qmax          163.150   184.252   145.102
amean          97.911   106.585    89.835
amin           95.886   103.756    88.424
amax          100.680   110.669    91.976
emean           0.611     0.651     0.563
emin            0.597     0.639     0.552
emax            0.624     0.666     0.578
imean          17.043    17.080    17.056
imin           16.251    16.463    16.272
imax           17.890    18.104    17.686
excite_mean     0.677     0.715     0.635
fracstop        1.000     1.000     1.000
cjmean          3.038     3.011     3.063

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       250.2     236.2     222.5
kozaiamp        180.0      96.4     180.0