Orbit Fit and Astrometric record for 14FF72

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: 14FF72    
# Created Tue Dec 12 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   11 observations of   11
# Arc:   1.07y
# First observation: 2014/03/24
#  Last observation: 2015/04/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.000021   0.011351  -0.000004  -0.004341   0.016815   0.000000
# Chi-squared of fit:     4.77 DOF:   16 RMS:  0.12
# Min/Max residuals:    -0.22    0.25
# Exact a, adot, b, bdot, g, gdot:
  1.168468E-05  1.143812E-02 -5.268379E-06 -4.370871E-03  1.702762E-02  2.304919E-03
# Covariance matrix:
  4.0938E-13  2.0427E-13 -6.5984E-14 -1.9365E-13  8.9066E-13  5.0937E-11
  2.0427E-13  1.5919E-11  2.2291E-13 -7.7430E-12  9.3616E-12  2.0732E-09
 -6.5984E-14  2.2291E-13  2.5702E-13 -3.7422E-13 -1.2081E-13  3.4698E-11
 -1.9365E-13 -7.7430E-12 -3.7422E-13  4.6322E-12 -4.6340E-12 -1.0561E-09
  8.9066E-13  9.3616E-12 -1.2081E-13 -4.6340E-12  7.9352E-12  1.2375E-09
  5.0937E-11  2.0732E-09  3.4698E-11 -1.0561E-09  1.2375E-09  2.8284E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.907528  161.084124   -0.374964   -0.283435   -0.877578  2456740.516568
# Heliocentric elements and errors
Epoch:              2456740.5000  =  2014/03/24
Mean Anomaly:          124.33775 +/-     6.777
Argument of Peri:       76.84102 +/-     5.975
Long of Asc Node:      302.86416 +/-     0.028
Inclination:            27.00102 +/-     0.014
Eccentricity:         0.26515627 +/-    0.0195
Semi-Major Axis:     50.18834524 +/-    0.5483
Time of Perihelion: 2411886.2877 +/-    2331.8
Perihelion:          36.88059069 +/-    1.0578
Aphelion:            63.49609979 +/-    1.1991
Period (y)              355.5597 +/-      5.83
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -53.86060727 +/-    0.0087
Ecliptic Y           18.06173484 +/-    0.0030
Ecliptic Z          -18.05814137 +/-    0.0030
Ecliptic XDOT        -0.00073100 +/-    0.0001
Ecliptic YDOT        -0.00169870 +/-    0.0000
Ecliptic ZDOT        -0.00078256 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   59.60946024 +/-    0.0080
Geocenter to KBO     58.72811093 +/-    0.0097
# Hcoef:  6.95

The following table shows the complete astrometric record for 14FF72. 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 (14FF72) followed by the observatory code and reference code for the source of the astrometry.

2014 03  24.01579  10 23 02.112  -09 10 20.47        14FF72    807  C~1x8j      
2014 03  24.07833  10 23 01.918  -09 10 19.52        14FF72    807  C~1x8j      
2014 03  24.13605  10 23 01.763  -09 10 18.21        14FF72    807  C~1x8j      
2014 05  01.05722  10 21 39.013  -08 55 37.25        14FF72    304  C~1x8j      
2014 05  01.13849  10 21 38.909  -08 55 35.37  24.6r 14FF72    304  C~1x8j      
2014 05  02.00056  10 21 37.912  -08 55 17.20        14FF72    304  C~1x8j      
2014 05  02.06089  10 21 37.850  -08 55 15.72        14FF72    304  C~1x8j      
2014 07  19.97014  10 23 14.820  -08 45 23.99        14FF72    304  C~1x8j      
2015 04  18.01980  10 24 03.794  -09 29 21.40        14FF72    304  C~1x8j      
2015 04  18.12756  10 24 03.571  -09 29 18.84        14FF72    304  C~1x8j      
2015 04  19.02489  10 24 01.843  -09 28 57.73        14FF72    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    -0.22       0.00     0.25
  2   0.0002     -3.02    -0.07      -0.22    -0.21
  3   0.0003     -5.64     0.24       0.12    -0.10
  4   0.1042  -1474.89     0.12     346.64    -0.01
  5   0.1044  -1477.03     0.01     347.78     0.10
  6   0.1067  -1497.62    -0.08     358.93    -0.14
  7   0.1069  -1499.04    -0.03     359.95     0.10
  8   0.3229   -396.24     0.03    1455.33     0.02
  9   1.0678   1278.71     0.06    -707.27     0.02
 10   1.0681   1274.69    -0.03    -706.16    -0.00
 11   1.0705   1243.01    -0.04    -696.36    -0.03

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.

14FF72    quality flag:2

Type:       SCATNEAR  SCATNEAR  SCATEXTD

axisobj        49.935    52.117    48.879
ecceobj         0.271     0.335     0.232
incobj         27.061    27.104    27.018
qmin           35.214    33.462    37.021
qmax           65.443    72.355    61.591
amean          50.044    52.319    49.048
amin           49.560    51.688    48.601
amax           50.599    53.171    49.564
emean           0.278     0.334     0.226
emin            0.259     0.315     0.210
emax            0.294     0.362     0.243
imean          28.225    28.560    28.622
imin           27.749    27.774    28.333
imax           28.766    29.120    29.034
excite_mean     0.549     0.583     0.530
fracstop        1.000     1.000     1.000
cjmean          2.783     2.758     2.796

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       173.6     173.9     190.7
kozaiamp        180.0     179.9     179.9