Orbit Fit and Astrometric record for 16FC59

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: 16FC59    
# Created Fri Mar 29 01:18:37 2024
# Orbit generated from Bernstein formalism
# Fitting     15 observations of     15
# Arc:   4.06d
# First observation: 2016/03/28
#  Last observation: 2016/04/01
Preliminary a, adot, b, bdot, g, gdot:
   0.000002   0.039020   0.000000  -0.005017   0.027359   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# Chi-squared of fit:    50.64 DOF:     25 RMS:  0.32
# Min/Max residuals:    -0.67    0.68
# Exact a, adot, b, bdot, g, gdot:
  1.756193E-05  2.502566E-02 -2.628862E-06 -4.465791E-03  2.510948E-02 -1.633084E-03
# Covariance matrix:
  3.3745E-11  5.2128E-08 -6.9155E-13 -2.0593E-09  8.4254E-09  9.0683E-08
  5.2128E-08  8.1246E-05 -1.0770E-09 -3.2072E-06  1.3122E-05  1.3637E-04
 -6.9155E-13 -1.0770E-09  2.6482E-13  1.1400E-11 -1.7396E-10 -1.8546E-09
 -2.0593E-09 -3.2072E-06  1.1400E-11  1.3296E-07 -5.1804E-07 -5.4444E-06
  8.4254E-09  1.3122E-05 -1.7396E-10 -5.1804E-07  2.1195E-06  2.2374E-05
  9.0683E-08  1.3637E-04 -1.8546E-09 -5.4444E-06  2.2374E-05  1.8175E-03
#      lat0       lon0       xBary       yBary       zBary        JD0
  -14.170745  179.455548   -0.139417   -0.240803   -0.954444  2457475.583389
# Heliocentric elements and errors
Epoch:              2457470.5000  =  2016/03/23
Mean Anomaly:          321.62635 +/-   337.027
Argument of Peri:      280.28150 +/-   166.759
Long of Asc Node:      306.12917 +/-     7.242
Inclination:            17.02163 +/-     1.523
Eccentricity:         0.09207056 +/-    1.1956
Semi-Major Axis:     43.78627725 +/-   22.5345
Time of Perihelion: 2468751.2010 +/-  204719.8
Perihelion:          39.75485039 +/-   56.2059
Aphelion:            47.81770410 +/-   57.8457
Period (y)              289.7445 +/-    223.67
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.60135943 +/-    2.2387
Ecliptic Y            0.23415554 +/-    0.0215
Ecliptic Z           -9.74991969 +/-    0.5653
Ecliptic XDOT         0.00026597 +/-    0.0045
Ecliptic YDOT        -0.00273834 +/-    0.0008
Ecliptic ZDOT        -0.00042852 +/-    0.0011
# Distances at JD0 (AU)
Heliocenter to KBO   40.78459797 +/-    2.1780
Geocenter to KBO     39.82559212 +/-    2.3091
# Hcoef:  7.66

The following table shows the complete astrometric record for 16FC59. 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 (16FC59) followed by the observatory code and reference code for the source of the astrometry.

2016 03  28.08260  11 35 04.86   -12 45 52.6   23.8V 16FC59    W84  C~1qoJ      
2016 03  28.08954  11 35 04.85   -12 45 52.5         16FC59    W84  C~1qoJ      
2016 03  28.09648  11 35 04.85   -12 45 52.5         16FC59    W84  C~1qoJ      
2016 03  29.06492  11 35 00.31   -12 45 22.2         16FC59    W84  C~1qoJ      
2016 03  29.07186  11 35 00.31   -12 45 22.3         16FC59    W84  C~1qoJ      
2016 03  29.07880  11 35 00.31   -12 45 22.3         16FC59    W84  C~1qoJ      
2016 03  30.09061  11 34 55.59   -12 44 50.8         16FC59    W84  C~1qoJ      
2016 03  30.09755  11 34 55.59   -12 44 50.7         16FC59    W84  C~1qoJ      
2016 03  30.10449  11 34 55.59   -12 44 50.8         16FC59    W84  C~1qoJ      
2016 03  31.11593  11 34 50.91   -12 44 19.0         16FC59    W84  C~1qoJ      
2016 03  31.12287  11 34 50.91   -12 44 19.0         16FC59    W84  C~1qoJ      
2016 03  31.12981  11 34 50.91   -12 44 19.1         16FC59    W84  C~1qoJ      
2016 04  01.13039  11 34 46.29   -12 43 47.0         16FC59    W84  C~1qoJ      
2016 04  01.13733  11 34 46.30   -12 43 46.9         16FC59    W84  C~1qoJ      
2016 04  01.14427  11 34 46.31   -12 43 46.7         16FC59    W84  C~1qoJ      

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    -0.37       0.00    -0.04
     2   0.0000     -0.17    -0.02       0.03    -0.00
     3   0.0000     -0.17     0.50       0.03    -0.00
     4   0.0027    -73.18    -0.62       0.61     0.18
     5   0.0027    -73.13    -0.06       0.52     0.09
     6   0.0027    -73.13     0.46       0.52     0.09
     7   0.0055   -149.03    -0.54       1.11    -0.09
     8   0.0055   -149.07    -0.06       1.20     0.00
     9   0.0055   -149.03     0.50       1.11    -0.09
    10   0.0083   -224.52    -0.40       2.20    -0.14
    11   0.0083   -224.52     0.12       2.20    -0.15
    12   0.0083   -224.48     0.68       2.11    -0.24
    13   0.0111   -299.29    -0.67       3.83    -0.04
    14   0.0111   -299.20    -0.06       3.98     0.10
    15   0.0111   -299.14     0.51       4.22     0.34

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.

16FC59    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