Orbit Fit and Astrometric record for 16FU59

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: 16FU59    
# Created Fri Nov  1 01:10:21 2024
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   3.04d
# First observation: 2016/03/29
#  Last observation: 2016/04/01
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# Chi-squared of fit:    32.66 DOF:     20 RMS:  0.29
# Min/Max residuals:    -0.75    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.713150E-05  1.794200E-02  4.988033E-06  6.433176E-03  2.104149E-02  0.000000E+00
# Covariance matrix:
  3.1024E-11  4.0686E-08 -9.0910E-14 -3.6386E-10  6.4913E-09  0.0000E+00
  4.0686E-08  5.3960E-05 -1.2037E-10 -4.8194E-07  8.5978E-06  0.0000E+00
 -9.0910E-14 -1.2037E-10  2.7296E-13 -4.2898E-11 -1.9185E-11  0.0000E+00
 -3.6386E-10 -4.8194E-07 -4.2898E-11  1.7174E-08 -7.6809E-08  0.0000E+00
  6.4913E-09  8.5978E-06 -1.9185E-11 -7.6809E-08  1.3703E-06  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  1.2259E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.986510 -174.007189   -0.045984   -0.155005   -0.981256  2457476.716889
# Heliocentric elements and errors
Epoch:              2457470.5000  =  2016/03/23
Mean Anomaly:            9.31808 +/-   194.652
Argument of Peri:      325.71095 +/-   260.385
Long of Asc Node:      209.21138 +/-     8.656
Inclination:            21.48971 +/-     6.917
Eccentricity:         0.01388596 +/-    0.5642
Semi-Major Axis:     49.18423835 +/-   25.4322
Time of Perihelion: 2454209.4210 +/-  824061.4
Perihelion:          48.50126809 +/-   37.4019
Aphelion:            49.86720862 +/-   37.8791
Period (y)              344.9428 +/-    267.54
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -47.67216637 +/-    2.5972
Ecliptic Y           -5.05317512 +/-    0.2724
Ecliptic Z           -7.42329445 +/-    0.4130
Ecliptic XDOT         0.00011377 +/-    0.0014
Ecliptic YDOT        -0.00234243 +/-    0.0008
Ecliptic ZDOT         0.00082680 +/-    0.0002
# Distances at JD0 (AU)
Heliocenter to KBO   48.51056922 +/-    2.5533
Geocenter to KBO     47.52515149 +/-    2.6439
# Hcoef:  7.03

The following table shows the complete astrometric record for 16FU59. 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 (16FU59) followed by the observatory code and reference code for the source of the astrometry.

2016 03  29.21610  12 07 34.49   -10 37 19.9   23.9V 16FU59    W84  C~1qoK      
2016 03  29.22304  12 07 34.51   -10 37 20.0         16FU59    W84  C~1qoK      
2016 03  29.22998  12 07 34.51   -10 37 19.8         16FU59    W84  C~1qoK      
2016 03  30.23733  12 07 30.55   -10 36 49.7         16FU59    W84  C~1qoK      
2016 03  30.24427  12 07 30.54   -10 36 49.7         16FU59    W84  C~1qoK      
2016 03  30.25121  12 07 30.53   -10 36 49.7         16FU59    W84  C~1qoK      
2016 03  31.22984  12 07 26.68   -10 36 20.1         16FU59    W84  C~1qoK      
2016 03  31.23678  12 07 26.68   -10 36 20.0         16FU59    W84  C~1qoK      
2016 03  31.24372  12 07 26.68   -10 36 19.9         16FU59    W84  C~1qoK      
2016 04  01.24388  12 07 22.73   -10 35 49.7         16FU59    W84  C~1qoK      
2016 04  01.25082  12 07 22.75   -10 35 49.4         16FU59    W84  C~1qoK      
2016 04  01.25776  12 07 22.75   -10 35 49.3         16FU59    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    -0.75       0.00    -0.03
     2   0.0000      0.31     0.01       0.03    -0.03
     3   0.0000      0.23     0.39       0.21     0.13
     4   0.0028    -65.33    -0.16       4.26     0.06
     5   0.0028    -65.47     0.16       4.20    -0.02
     6   0.0028    -65.60     0.47       4.14    -0.11
     7   0.0055   -129.48    -0.35       8.39    -0.07
     8   0.0055   -129.52     0.07       8.48    -0.01
     9   0.0056   -129.56     0.48       8.57     0.05
    10   0.0083   -195.03    -0.63      12.77    -0.25
    11   0.0083   -194.88    -0.03      13.16     0.12
    12   0.0083   -194.92     0.38      13.25     0.18

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.

16FU59    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