Orbit Fit and Astrometric record for 16FF59

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: 16FF59    
# Created Fri Mar 29 01:18:37 2024
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:  13.02d
# First observation: 2016/03/28
#  Last observation: 2016/04/10
Preliminary a, adot, b, bdot, g, gdot:
   0.000003   0.033834  -0.000001   0.004797   0.026183   0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit:    22.22 DOF:     15 RMS:  0.26
# Min/Max residuals:    -0.56    0.53
# Exact a, adot, b, bdot, g, gdot:
  1.991860E-05  2.735154E-02  2.088123E-06  5.019986E-03  2.514044E-02 -8.808725E-04
# Covariance matrix:
  8.2421E-12  1.1181E-08  3.0359E-13 -3.7228E-10  1.8435E-09 -1.3250E-08
  1.1181E-08  1.5737E-05  4.3193E-10 -5.2458E-07  2.5880E-06 -2.4048E-05
  3.0359E-13  4.3193E-10  2.3388E-13 -2.5090E-11  7.0870E-11 -8.8972E-10
 -3.7228E-10 -5.2458E-07 -2.5090E-11  1.9012E-08 -8.6240E-08  8.5312E-07
  1.8435E-09  2.5880E-06  7.0870E-11 -8.6240E-08  4.2579E-07 -3.7742E-06
 -1.3250E-08 -2.4048E-05 -8.8972E-10  8.5312E-07 -3.7742E-06  2.8195E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.950011  177.916728   -0.166402   -0.118424   -0.972985  2457475.618349
# Heliocentric elements and errors
Epoch:              2457470.5000  =  2016/03/23
Mean Anomaly:          355.96746 +/-    86.516
Argument of Peri:      333.92129 +/-   156.496
Long of Asc Node:      210.89637 +/-     4.375
Inclination:            12.40247 +/-     1.433
Eccentricity:         0.27133146 +/-    0.3071
Semi-Major Axis:     55.83279539 +/-   19.7757
Time of Perihelion: 2459177.4006 +/-   36609.4
Perihelion:          40.68360129 +/-   22.3988
Aphelion:            70.98198949 +/-   30.4328
Period (y)              417.1980 +/-    221.65
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -40.44755492 +/-    1.0241
Ecliptic Y            1.30186873 +/-    0.0373
Ecliptic Z           -4.81303079 +/-    0.1249
Ecliptic XDOT        -0.00007917 +/-    0.0018
Ecliptic YDOT        -0.00298471 +/-    0.0004
Ecliptic ZDOT         0.00055429 +/-    0.0002
# Distances at JD0 (AU)
Heliocenter to KBO   40.75370936 +/-    1.0166
Geocenter to KBO     39.77654973 +/-    1.0324
# Hcoef:  7.73

The following table shows the complete astrometric record for 16FF59. 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 (16FF59) followed by the observatory code and reference code for the source of the astrometry.

2016 03  28.11756  11 41 16.37   -05 32 49.7   24.3V 16FF59    W84  C~1qoJ      
2016 03  28.12450  11 41 16.37   -05 32 49.9         16FF59    W84  C~1qoJ      
2016 03  28.13144  11 41 16.37   -05 32 49.8         16FF59    W84  C~1qoJ      
2016 03  30.12493  11 41 07.68   -05 31 43.3         16FF59    W84  C~1qoJ      
2016 03  30.13187  11 41 07.67   -05 31 43.2         16FF59    W84  C~1qoJ      
2016 03  30.13881  11 41 07.67   -05 31 43.4         16FF59    W84  C~1qoJ      
2016 03  31.08634  11 41 03.56   -05 31 11.2         16FF59    W84  C~1qoJ      
2016 03  31.09328  11 41 03.55   -05 31 11.1         16FF59    W84  C~1qoJ      
2016 03  31.10022  11 41 03.54   -05 31 11.0         16FF59    W84  C~1qoJ      
2016 04  10.137798 11 40 22.13   -05 25 36.8   23.3r 16FF59    W84  C~67BO      

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    -0.56       0.00     0.22
     2   0.0000      0.08     0.03      -0.18     0.01
     3   0.0000      0.04     0.51      -0.09     0.07
     4   0.0055   -145.46    -0.40       9.05    -0.07
     5   0.0055   -145.64    -0.06       9.09    -0.07
     6   0.0055   -145.56     0.53       8.90    -0.29
     7   0.0081   -214.68    -0.34      13.91     0.03
     8   0.0081   -214.86    -0.01      13.94     0.03
     9   0.0082   -215.03     0.31      13.97     0.03
    10   0.0356   -915.39    -0.00      73.25     0.05

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.

16FF59    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0