Orbit Fit and Astrometric record for 16FW59

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: 16FW59    
# Created Mon Dec 18 02:38:14 2017
# Orbit generated from Bernstein formalism
# Fitting   31 observations of   34
# Arc:   2.09y
# First observation: 2014/02/26
#  Last observation: 2016/03/31
Preliminary a, adot, b, bdot, g, gdot:
  -0.000039   0.020303   0.000004  -0.000672   0.022164   0.000000
# Chi-squared of fit:    19.04 DOF:   56 RMS:  0.14
# Min/Max residuals:    -0.32    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.419009E-05  2.028504E-02  7.994357E-07 -6.674804E-04  2.238158E-02 -6.834515E-04
# Covariance matrix:
  1.5464E-13 -3.9512E-13 -5.4463E-15  1.6254E-14 -8.0171E-15 -1.0360E-11
 -3.9512E-13  2.4578E-12  3.5481E-14 -1.1579E-13  3.1049E-13  7.5053E-11
 -5.4463E-15  3.5481E-14  1.0401E-13 -7.0733E-14  1.5491E-15  1.1262E-12
  1.6254E-14 -1.1579E-13 -7.0733E-14  9.0716E-14 -1.3317E-14 -3.6649E-12
 -8.0171E-15  3.1049E-13  1.5491E-15 -1.3317E-14  2.2901E-13  9.5865E-12
 -1.0360E-11  7.5053E-11  1.1262E-12 -3.6649E-12  9.5865E-12  2.3743E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.114569 -177.216674    0.418890   -0.095236   -0.889934  2456715.007968
# Heliocentric elements and errors
Epoch:              2456710.5000  =  2014/02/22
Mean Anomaly:          222.60825 +/-     1.549
Argument of Peri:       34.29056 +/-     1.547
Long of Asc Node:      290.02684 +/-     0.008
Inclination:             6.29238 +/-     0.000
Eccentricity:         0.06261564 +/-    0.0015
Semi-Major Axis:     43.49573857 +/-    0.0035
Time of Perihelion: 2496698.2196 +/-     450.9
Perihelion:          40.77222510 +/-    0.0667
Aphelion:            46.21925204 +/-    0.0667
Period (y)              286.8655 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -45.28860603 +/-    0.0009
Ecliptic Y           -1.78082893 +/-    0.0001
Ecliptic Z           -4.75909539 +/-    0.0001
Ecliptic XDOT         0.00020644 +/-    0.0000
Ecliptic YDOT        -0.00247695 +/-    0.0000
Ecliptic ZDOT        -0.00007215 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.57277890 +/-    0.0009
Geocenter to KBO     44.67960601 +/-    0.0010
# Hcoef:  5.93

The following table shows the complete astrometric record for 16FW59. 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 (16FW59) followed by the observatory code and reference code for the source of the astrometry.

2014 02  26.50719  12 00 26.704  -06 42 54.50  22.5w 16FW59    F51  C~1va8      
2014 02  26.53193  12 00 26.613  -06 42 53.84  22.9w 16FW59    F51  C~1va8      
2014 02  26.54430  12 00 26.561  -06 42 53.53  22.8w 16FW59    F51  C~1va8      
2014 02  28.45652  12 00 19.162  -06 42 13.55  22.7w 16FW59    F51  C~1va8      
2014 02  28.46858  12 00 19.110  -06 42 13.32  22.4w 16FW59    F51  C~1va8      
2014 02  28.48066  12 00 19.059  -06 42 13.22  22.6w 16FW59    F51  C~1va8      
2014 02  28.49275  12 00 19.007  -06 42 12.87  22.7w 16FW59    F51  C~1va8      
2014 03  06.45205  11 59 55.228  -06 40 00.54  22.3w 16FW59    F51  C~1w4v      
2014 03  06.46397  11 59 55.162  -06 40 00.20  22.5w 16FW59    F51  C~1w4v      
2014 05  24.27203  11 55 26.416  -06 07 21.05  22.8w 16FW59    F51  C~1va8      
2014 05  24.28532  11 55 26.376  -06 07 20.62  22.7w 16FW59    F51  C~1va8      
2014 05  24.29860  11 55 26.376  -06 07 20.52  22.4w 16FW59    F51  C~1va8      
2014 05  24.31185  11 55 26.353  -06 07 20.40  22.6w 16FW59    F51  C~1va8      
2015 01  23.53453  12 06 21.858  -07 19 52.74  22.8w 16FW59    F51  C~1va8      
2015 01  23.54987  12 06 21.839  -07 19 52.94  22.5w 16FW59    F51  C~1va8      
2015 01  23.56526  12 06 21.805  -07 19 52.80  22.6w 16FW59    F51  C~1va8      
2015 01  23.58067  12 06 21.760  -07 19 52.66  22.6w 16FW59    F51  C~1va8      
2015 02  16.49975  12 05 18.280  -07 15 57.93  22.4w 16FW59    F51  C~1va8      
2015 02  16.51247  12 05 18.220  -07 15 57.47  22.5w 16FW59    F51  C~1va8      
2015 02  16.52515  12 05 18.187  -07 15 57.43  22.3w 16FW59    F51  C~1va8      
2015 02  16.53783  12 05 18.144  -07 15 57.29  22.6w 16FW59    F51  C~1va8      
2015 02  27.54039  12 04 38.342  -07 12 37.48  22.2w 16FW59    F51  C~1va8      
2015 02  27.55293  12 04 38.305  -07 12 37.05  22.4w 16FW59    F51  C~1va8      
2015 02  27.56546  12 04 38.254  -07 12 37.03  22.8w 16FW59    F51  C~1va8      
2015 02  27.57799  12 04 38.199  -07 12 36.81  22.5w 16FW59    F51  C~1va8      
2016 03  29.22896  12 06 48.86   -07 30 10.8   23.4V 16FW59    W84  C~1qoK      
2016 03  29.23590  12 06 48.87   -07 30 10.9         16FW59    W84  C~1qoK      
2016 03  29.24284  12 06 48.87   -07 30 11.0         16FW59    W84  C~1qoK      
2016 03  30.25362  12 06 44.56   -07 29 42.7         16FW59    W84  C~1qoK      
2016 03  30.26056  12 06 44.55   -07 29 42.7         16FW59    W84  C~1qoK      
2016 03  30.26750  12 06 44.56   -07 29 42.7         16FW59    W84  C~1qoK      
2016 03  31.21393  12 06 40.56   -07 29 16.3         16FW59    W84  C~1qoK      
2016 03  31.22087  12 06 40.56   -07 29 16.4         16FW59    W84  C~1qoK      
2016 03  31.22781  12 06 40.56   -07 29 16.3         16FW59    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     0.03       0.00    -0.26
  2   0.0001     -1.51     0.05       0.06    -0.09
  3   0.0001     -2.34    -0.02       0.04    -0.06
  4   0.0053   -119.35     0.04      -7.42     0.06
  5   0.0054   -120.16    -0.00      -7.52     0.02
  6   0.0054   -120.89     0.02      -7.73    -0.14
  7   0.0054   -121.74    -0.07      -7.72    -0.08
  8   0.0218   -499.36     0.13     -28.23    -0.10
  9   0.0218   -500.39    -0.12     -28.31    -0.14
 10   0.2375  -4956.92     0.09     158.52     0.15
 11   0.2376  -4957.64    -0.26     158.67     0.22
 12   0.2376  -4957.68     0.07     158.76     0.23
 13   0.2377  -4958.05     0.07     158.73     0.12
 14   0.9063   5734.79    -0.15      73.30     0.13
 15   0.9063   5734.61     0.09      73.00    -0.04
 16   0.9064   5734.09    -0.01      72.93     0.02
 17   0.9064   5733.42    -0.25      72.79     0.01
 18   0.9719   4772.81     0.22     -87.22    -0.03
 19   0.9720   4771.81    -0.10     -87.15     0.11
 20   0.9720   4771.34     0.10     -87.31     0.03
 21   0.9720   4770.70     0.14     -87.44    -0.02
 22   1.0021   4147.53    -0.10    -139.77    -0.03
 23   1.0022   4146.86    -0.01    -139.59     0.20
 24   1.0022   4146.15     0.06    -139.88    -0.03
 25   1.0022   4145.31    -0.01    -140.00    -0.09
 26   2.0855   6349.33    -0.29    -334.68     0.01
 27   2.0855   6349.51     0.37    -334.71    -0.03
 28   2.0855   6349.55 (   0.89)   -334.80 (  -0.12)
 29   2.0883   6279.42    -0.32    -334.27    -0.03
 30   2.0883   6279.28     0.02    -334.33    -0.09
 31   2.0883   6279.42 (   0.64)   -334.27 (  -0.03)
 32   2.0909   6214.28    -0.15    -333.65     0.01
 33   2.0909   6214.32     0.37    -333.74    -0.08
 34   2.0910   6214.28 (   0.81)   -333.65 (   0.01)

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.

16FW59    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.215    43.225    43.205
ecceobj         0.069     0.067     0.070
incobj          6.295     6.295     6.295
qmin           39.589    39.646    39.549
qmax           47.435    47.436    47.522
amean          43.429    43.439    43.421
amin           43.095    43.095    43.087
amax           43.794    43.795    43.793
emean           0.068     0.066     0.069
emin            0.052     0.050     0.052
emax            0.085     0.084     0.086
imean           8.002     7.998     8.003
imin            7.272     7.274     7.268
imax            8.670     8.657     8.684
excite_mean     0.155     0.154     0.155
fracstop        1.000     1.000     1.000
cjmean          3.066     3.066     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       176.5     176.5     176.2
kozaiamp        179.9     179.9     180.0