Orbit Fit and Astrometric record for 16FN59

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: 16FN59    
# Created Mon Oct 23 01:38:42 2017
# Orbit generated from Bernstein formalism
# Fitting   41 observations of   48
# Arc:  15.19y
# First observation: 2001/02/20
#  Last observation: 2016/04/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.002202   0.037129  -0.000060   0.000874   0.028417   0.000000
# Chi-squared of fit:    42.56 DOF:   76 RMS:  0.18
# Min/Max residuals:    -0.62    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.984892E-05  3.561188E-02  6.101363E-07  8.491122E-04  2.876888E-02  8.188738E-04
# Covariance matrix:
  4.8956E-13 -6.7773E-14  6.6146E-16 -8.2005E-16 -2.5636E-14 -6.2547E-14
 -6.7773E-14  5.9285E-14 -1.0205E-15  1.4286E-15  1.3936E-14  1.0470E-13
  6.6146E-16 -1.0205E-15  4.6434E-13 -3.3140E-14 -4.1156E-16 -1.8695E-15
 -8.2005E-16  1.4286E-15 -3.3140E-14  2.5717E-15  1.3025E-16  2.6535E-15
 -2.5636E-14  1.3936E-14 -4.1156E-16  1.3025E-16  7.5498E-14  1.9848E-14
 -6.2547E-14  1.0470E-13 -1.8695E-15  2.6535E-15  1.9848E-14  1.9363E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.756556  153.151647    0.017096   -0.099476   -0.985103  2451960.879912
# Heliocentric elements and errors
Epoch:              2451960.5000  =  2001/02/20
Mean Anomaly:            2.06083 +/-     0.001
Argument of Peri:      278.66329 +/-     0.002
Long of Asc Node:      229.27956 +/-     0.001
Inclination:             5.76367 +/-     0.000
Eccentricity:         0.39045933 +/-    0.0000
Semi-Major Axis:     58.57489571 +/-    0.0044
Time of Perihelion: 2451023.1437 +/-       0.4
Perihelion:          35.70378106 +/-    0.0036
Aphelion:            81.44601036 +/-    0.0065
Period (y)              448.3070 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -31.72820939 +/-    0.0003
Ecliptic Y           16.08632471 +/-    0.0001
Ecliptic Z           -3.48642980 +/-    0.0000
Ecliptic XDOT        -0.00161533 +/-    0.0000
Ecliptic YDOT        -0.00298179 +/-    0.0000
Ecliptic ZDOT         0.00007277 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.74359113 +/-    0.0003
Geocenter to KBO     34.75978034 +/-    0.0003
# Hcoef:  6.66

The following table shows the complete astrometric record for 16FN59. 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 (16FN59) followed by the observatory code and reference code for the source of the astrometry.

2001 02  20.379169 10 12 01.69   +04 58 29.2   22.5V 16FN59    645  C~1va8      
2001 02  20.379998 10 12 01.69   +04 58 29.2   21.8V 16FN59    645  C~1va8      
2001 02  20.382486 10 12 01.68   +04 58 29.3   22.9V 16FN59    645  C~1va8      
2013 12  14.63530  11 50 50.727  -03 54 48.01  22.4w 16FN59    F51  C~1va8      
2013 12  14.63930  11 50 50.691  -03 54 47.94  22.5w 16FN59    F51  C~1va8      
2013 12  14.64330  11 50 50.699  -03 54 48.07  22.4w 16FN59    F51  C~1va8      
2013 12  14.64731  11 50 50.720  -03 54 48.09  22.4w 16FN59    F51  C~1va8      
2014 02  28.45783  11 48 23.003  -03 45 38.42  22.2w 16FN59    F51  C~1va8      
2014 02  28.46989  11 48 22.943  -03 45 38.11  22.6w 16FN59    F51  C~1va8      
2014 02  28.48197  11 48 22.889  -03 45 37.75  22.6w 16FN59    F51  C~1va8      
2014 02  28.49406  11 48 22.823  -03 45 37.47  22.6w 16FN59    F51  C~1va8      
2014 03  24.40558  11 46 27.791  -03 33 06.29  22.5w 16FN59    F51  C~1va8      
2014 03  24.43018  11 46 27.659  -03 33 05.76  22.3w 16FN59    F51  C~1va8      
2014 03  24.44250  11 46 27.598  -03 33 05.19  22.3w 16FN59    F51  C~1va8      
2014 05  24.28004  11 43 00.959  -03 04 47.73  22.8w 16FN59    F51  C~1va8      
2014 05  24.29330  11 43 00.931  -03 04 47.88  22.4w 16FN59    F51  C~1va8      
2014 05  24.30657  11 43 00.921  -03 04 47.65  22.2w 16FN59    F51  C~1va8      
2014 12  02.62782  11 57 15.356  -04 27 18.25  22.3w 16FN59    F51  C~1va8      
2014 12  02.63241  11 57 15.388  -04 27 18.05  22.1w 16FN59    F51  C~1va8      
2014 12  02.63701  11 57 15.379  -04 27 17.96  22.1w 16FN59    F51  C~1va8      
2015 01  23.53387  11 57 36.066  -04 35 09.48  22.8w 16FN59    F51  C~1va8      
2015 01  23.54921  11 57 36.028  -04 35 09.41  23.0w 16FN59    F51  C~1va8      
2015 01  23.56461  11 57 36.010  -04 35 09.48  23.0w 16FN59    F51  C~1va8      
2015 01  23.58002  11 57 35.976  -04 35 09.14  22.7w 16FN59    F51  C~1va8      
2015 01  25.48602  11 57 31.676  -04 34 52.11  22.1w 16FN59    F51  C~1va8      
2015 01  25.49739  11 57 31.662  -04 34 51.99  22.3w 16FN59    F51  C~1va8      
2015 01  25.50876  11 57 31.626  -04 34 51.90  22.5w 16FN59    F51  C~1va8      
2015 01  25.52013  11 57 31.607  -04 34 51.74  22.5w 16FN59    F51  C~1va8      
2015 03  22.41770  11 53 46.007  -04 12 41.91  22.2w 16FN59    F51  C~1va8      
2015 03  22.43153  11 53 45.946  -04 12 41.26  22.3w 16FN59    F51  C~1va8      
2015 03  22.44535  11 53 45.871  -04 12 41.00  22.3w 16FN59    F51  C~1va8      
2016 03  28.27714  12 00 18.15   -04 46 50.0   23.0V 16FN59    W84  C~1qoK      
2016 03  28.28408  12 00 18.15   -04 46 50.0         16FN59    W84  C~1qoK      
2016 03  28.29102  12 00 18.15   -04 46 49.9         16FN59    W84  C~1qoK      
2016 03  29.22737  12 00 13.63   -04 46 18.9         16FN59    W84  C~1qoK      
2016 03  29.23431  12 00 13.63   -04 46 18.7         16FN59    W84  C~1qoK      
2016 03  29.24125  12 00 13.62   -04 46 18.7         16FN59    W84  C~1qoK      
2016 03  30.25202  12 00 08.75   -04 45 44.5         16FN59    W84  C~1qoK      
2016 03  30.25896  12 00 08.74   -04 45 44.4         16FN59    W84  C~1qoK      
2016 03  30.26590  12 00 08.74   -04 45 44.2         16FN59    W84  C~1qoK      
2016 04  01.22640  11 59 59.41   -04 44 39.0         16FN59    W84  C~1qoK      
2016 04  01.23334  11 59 59.41   -04 44 39.0         16FN59    W84  C~1qoK      
2016 04  01.24028  11 59 59.42   -04 44 39.0         16FN59    W84  C~1qoK      
2016 04  30.77137  11 57 57.07   -04 29 10.1         16FN59    B31  C~1sds      
2016 04  30.77278  11 57 57.04   -04 29 10.1         16FN59    B31  C~1sds      
2016 04  30.87721  11 57 56.69   -04 29 07.2         16FN59    B31  C~1sds      
2016 04  30.88375  11 57 56.70   -04 29 07.0   22.1R 16FN59    B31  C~1sds      
2016 04  30.88957  11 57 56.64   -04 29 06.8         16FN59    B31  C~1sds      

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    -0.06       0.00    -0.03
  2   0.0000      0.00     0.01       0.00    -0.03
  3   0.0000     -0.18     0.05       0.04     0.01
  4  12.8138 101594.88     0.46    2660.03     0.02
  5  12.8139 101594.22    -0.34    2659.89    -0.09
  6  12.8139 101594.42    -0.28    2659.80    -0.14
  7  12.8139 101594.79    -0.04    2659.91     0.00
  8  13.0214  98800.00     0.03    2337.47     0.08
  9  13.0215  98798.83    -0.02    2337.43     0.03
 10  13.0215  98797.75     0.03    2337.47     0.07
 11  13.0215  98796.49    -0.10    2337.36    -0.05
 12  13.0870  96498.92     0.09    2419.75     0.25
 13  13.0871  96496.44     0.04    2419.50    -0.12
 14  13.0871  96495.15    -0.04    2419.72     0.04
 15  13.2537  92264.82    -0.04    2918.07     0.48
 16  13.2537  92264.41    -0.08    2917.74     0.04
 17  13.2537  92264.14     0.02    2917.92     0.10
 18  13.7803 109252.81     0.37    2959.24    -0.62
 19  13.7803 109253.30 (   0.56)   2959.65 (  -0.17)
 20  13.7803 109253.09     0.06    2959.69    -0.08
 21  13.9224 109838.60    -0.18    2588.24     0.08
 22  13.9224 109837.88    -0.21    2588.08    -0.01
 23  13.9225 109837.59     0.18    2587.90    -0.11
 24  13.9225 109836.83     0.09    2588.05     0.12
 25  13.9277 109751.93    -0.21    2579.77    -0.06
 26  13.9278 109751.62     0.02    2579.81     0.04
 27  13.9278 109750.94    -0.12    2579.69    -0.03
 28  13.9278 109750.52     0.01    2579.74     0.07
 29  14.0809 105139.80     0.13    2603.46    -0.02
 30  14.0809 105138.44     0.17    2603.77     0.22
 31  14.0809 105137.00     0.14    2603.59    -0.02
 32  15.0990 113087.05    -0.46    2838.42     0.04
 33  15.0990 113087.05     0.26    2838.42     0.00
 34  15.0990 113087.01 (   0.94)   2838.52 (   0.07)
 35  15.1016 112990.56     0.01    2843.74    -0.31
 36  15.1016 112990.47 (   0.64)   2843.95 (  -0.14)
 37  15.1016 112990.29 (   1.17)   2843.89 (  -0.24)
 38  15.1044 112886.05    -0.15    2850.36     0.09
 39  15.1044 112885.82     0.34    2850.40     0.10
 40  15.1044 112885.73 (   0.96)   2850.61 (   0.27)
 41  15.1098 112686.29    -0.01    2862.64    -0.01
 42  15.1098 112686.29 (   0.70)   2862.64 (  -0.05)
 43  15.1098 112686.47 (   1.59)   2862.70 (  -0.03)
 44  15.1907 110051.77     0.15    3096.62     0.06
 45  15.1907 110051.23    -0.29    3096.43    -0.13
 46  15.1910 110043.62    -0.15    3097.35    -0.10
 47  15.1910 110043.71     0.43    3097.63     0.11
 48  15.1910 110042.54    -0.31    3097.47    -0.10

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.

16FN59    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        58.182    58.195    58.170
ecceobj         0.386     0.386     0.386
incobj          5.764     5.764     5.764
qmin           34.856    35.070    35.129
qmax           83.885    83.308    83.390
amean          58.483    58.554    58.434
amin           57.646    57.705    57.612
amax           59.678    59.550    59.639
emean           0.389     0.388     0.385
emin            0.375     0.375     0.372
emax            0.406     0.399     0.398
imean           6.907     7.202     7.191
imin            5.914     6.707     6.342
imax            7.778     7.749     7.883
excite_mean     0.407     0.408     0.405
fracstop        1.000     1.000     1.000
cjmean          3.064     3.064     3.066

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       183.2     184.4     177.5
kozaiamp        179.9     180.0     180.0