Orbit Fit and Astrometric record for 16FX59

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: 16FX59    
# Created Fri Nov  1 01:10:21 2024
# Orbit generated from Bernstein formalism
# Fitting      9 observations of      9
# Arc:   2.06d
# First observation: 2016/03/29
#  Last observation: 2016/03/31
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:    31.84 DOF:     14 RMS:  0.33
# Min/Max residuals:    -0.65    0.72
# Exact a, adot, b, bdot, g, gdot:
  1.567287E-05  2.213280E-02  6.176577E-06  1.137836E-02  2.493343E-02  0.000000E+00
# Covariance matrix:
  4.4278E-11  6.9083E-08  3.0416E-13  2.0819E-10  1.1002E-08  0.0000E+00
  6.9083E-08  1.0880E-04  4.7852E-10  3.2742E-07  1.7305E-05  0.0000E+00
  3.0416E-13  4.7852E-10  3.1625E-13 -6.7109E-11  7.6126E-11  0.0000E+00
  2.0819E-10  3.2742E-07 -6.7109E-11  3.2121E-08  5.2093E-08  0.0000E+00
  1.1002E-08  1.7305E-05  7.6126E-11  5.2093E-08  2.7531E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  2.0397E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
  -12.027107 -170.324643    0.017113   -0.207033   -0.972558  2457476.763059
# Heliocentric elements and errors
Epoch:              2457470.5000  =  2016/03/23
Mean Anomaly:            3.11906 +/-    35.427
Argument of Peri:      332.09799 +/-   101.427
Long of Asc Node:      211.29703 +/-     9.155
Inclination:            29.39223 +/-     9.908
Eccentricity:         0.04158195 +/-    0.5704
Semi-Major Axis:     42.86323887 +/-   22.7267
Time of Perihelion: 2456582.4290 +/-  215086.8
Perihelion:          41.08090163 +/-   32.7454
Aphelion:            44.64557611 +/-   34.0319
Period (y)              280.6310 +/-    223.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.65525114 +/-    2.5733
Ecliptic Y           -6.74549480 +/-    0.4385
Ecliptic Z           -8.35699319 +/-    0.5561
Ecliptic XDOT         0.00015188 +/-    0.0015
Ecliptic YDOT        -0.00244649 +/-    0.0010
Ecliptic ZDOT         0.00122200 +/-    0.0003
# Distances at JD0 (AU)
Heliocenter to KBO   41.08381650 +/-    2.4875
Geocenter to KBO     40.10679500 +/-    2.6690
# Hcoef:  8.04

The following table shows the complete astrometric record for 16FX59. 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 (16FX59) followed by the observatory code and reference code for the source of the astrometry.

2016 03  29.26227  12 16 07.19   -14 51 58.8   24.2V 16FX59    W84  C~1qoK      
2016 03  29.26921  12 16 07.17   -14 51 58.9         16FX59    W84  C~1qoK      
2016 03  29.27615  12 16 07.17   -14 51 58.8         16FX59    W84  C~1qoK      
2016 03  30.30064  12 16 02.36   -14 51 21.3         16FX59    W84  C~1qoK      
2016 03  30.30758  12 16 02.36   -14 51 21.2         16FX59    W84  C~1qoK      
2016 03  30.31452  12 16 02.36   -14 51 21.3         16FX59    W84  C~1qoK      
2016 03  31.31045  12 15 57.70   -14 50 44.1         16FX59    W84  C~1qoK      
2016 03  31.31739  12 15 57.71   -14 50 44.1         16FX59    W84  C~1qoK      
2016 03  31.32433  12 15 57.72   -14 50 44.2         16FX59    W84  C~1qoK      

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    -0.34       0.00     0.21
     2   0.0000     -0.22    -0.03      -0.21    -0.03
     3   0.0000     -0.27     0.47      -0.12     0.02
     4   0.0028    -79.22    -0.58       5.86    -0.13
     5   0.0029    -79.26    -0.09       5.95    -0.08
     6   0.0029    -79.22     0.48       5.86    -0.21
     7   0.0056   -156.07    -0.65      12.44     0.09
     8   0.0056   -155.93     0.01      12.50     0.10
     9   0.0056   -155.76     0.72      12.47     0.02

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.

16FX59    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