Orbit Fit and Astrometric record for 13SS100

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: 13SS100   
# Created Fri Dec 15 02:37:53 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:   1.44y
# First observation: 2013/08/08
#  Last observation: 2015/01/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.000176   0.025762  -0.000005  -0.000284   0.024975   0.000000
# Chi-squared of fit:    14.84 DOF:   40 RMS:  0.14
# Min/Max residuals:    -0.42    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.511076E-05  2.581787E-02  2.414238E-07 -2.877789E-04  2.512148E-02  1.092789E-03
# Covariance matrix:
  3.4349E-13  1.8187E-13  6.2779E-15 -1.1547E-14  4.8477E-13  2.4082E-11
  1.8187E-13  6.9067E-13  8.6990E-15 -1.6107E-14  6.7530E-13  3.5538E-11
  6.2779E-15  8.6990E-15  1.2291E-13 -1.2403E-13  1.3790E-14  6.8723E-13
 -1.1547E-14 -1.6107E-14 -1.2403E-13  2.5986E-13 -2.5419E-14 -1.2920E-12
  4.8477E-13  6.7530E-13  1.3790E-14 -2.5419E-14  1.0667E-12  5.3999E-11
  2.4082E-11  3.5538E-11  6.8723E-13 -1.2920E-12  5.3999E-11  3.2020E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.492413   12.989665    0.853506   -0.023920   -0.550240  2456513.003888
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           11.86131 +/-     1.299
Argument of Peri:      240.15430 +/-     1.555
Long of Asc Node:      117.55431 +/-     0.025
Inclination:             2.55380 +/-     0.000
Eccentricity:         0.08444314 +/-    0.0006
Semi-Major Axis:     43.98603651 +/-    0.0051
Time of Perihelion: 2452999.7420 +/-     384.5
Perihelion:          40.27171749 +/-    0.0271
Aphelion:            47.70035554 +/-    0.0273
Period (y)              291.7296 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.47954213 +/-    0.0016
Ecliptic Y            8.23429125 +/-    0.0003
Ecliptic Z           -1.73102125 +/-    0.0001
Ecliptic XDOT        -0.00052407 +/-    0.0000
Ecliptic YDOT         0.00276731 +/-    0.0000
Ecliptic ZDOT        -0.00003637 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.36625118 +/-    0.0016
Geocenter to KBO     39.80657357 +/-    0.0016
# Hcoef:  8.30

The following table shows the complete astrometric record for 13SS100. 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 (13SS100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.50311  00 51 40.988  +02 49 59.26  24.1r 13SS100   568  C~2NKM      
2013 08  31.54913  00 50 35.659  +02 41 54.99  24.2r 13SS100   568  C~2NKM      
2013 08  31.59296  00 50 35.467  +02 41 53.64  24.6r 13SS100   568  C~2NKM      
2013 09  01.43491  00 50 32.474  +02 41 32.65  24.1r 13SS100   568  C~2NKM      
2013 09  01.47388  00 50 32.331  +02 41 31.62  24.1r 13SS100   568  C~2NKM      
2013 09  05.41441  00 50 17.596  +02 39 49.32  24.3r 13SS100   568  C~2NKM      
2013 09  05.45322  00 50 17.425  +02 39 47.76  24.9r 13SS100   568  C~2NKM      
2013 09  29.34540  00 48 34.970  +02 28 25.82  24.4r 13SS100   568  C~2NKM      
2013 09  29.38422  00 48 34.798  +02 28 24.81  24.0r 13SS100   568  C~2NKM      
2013 09  29.42805  00 48 34.584  +02 28 23.48  24.1r 13SS100   568  C~2NKM      
2013 10  02.41909  00 48 20.833  +02 26 54.84  24.4r 13SS100   568  C~2NKM      
2013 10  04.51065  00 48 11.139  +02 25 53.33  24.1r 13SS100   568  C~2NKM      
2013 11  27.27126  00 44 41.939  +02 05 16.84  24.4r 13SS100   568  C~2NKM      
2013 11  27.31577  00 44 41.832  +02 05 16.36  24.2r 13SS100   568  C~2NKM      
2013 12  05.23284  00 44 25.332  +02 03 58.59  23.8r 13SS100   568  C~2NKM      
2014 06  25.57325  00 57 08.596  +03 26 17.31  24.2r 13SS100   568  C~2NKM      
2014 06  26.57215  00 57 10.530  +03 26 25.41  24.1r 13SS100   568  C~2NKM      
2014 07  23.55975  00 57 29.377  +03 26 30.67  24.8r 13SS100   568  C~2NKM      
2014 07  27.53892  00 57 26.674  +03 25 57.78  24.7r 13SS100   568  C~2NKM      
2014 11  24.29560  00 50 19.468  +02 39 36.63  23.9r 13SS100   568  C~2NKM      
2014 11  25.28967  00 50 16.759  +02 39 22.73  23.8r 13SS100   568  C~2NKM      
2014 12  17.22286  00 49 37.291  +02 36 31.68  24.0r 13SS100   568  C~2NKM      
2015 01  17.24876  00 49 56.850  +02 40 38.48  24.2r 13SS100   568  C~2NKM      

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     0.24       0.00    -0.09
  2   0.0631  -1090.03     0.13     -66.35     0.04
  3   0.0632  -1093.21    -0.39     -66.48    -0.00
  4   0.0655  -1142.69     0.15     -68.41     0.10
  5   0.0656  -1145.06     0.16     -68.52     0.05
  6   0.0764  -1388.25     0.05     -77.06     0.16
  7   0.0765  -1391.22    -0.42     -77.50    -0.22
  8   0.1419  -3071.04    -0.16    -109.43    -0.06
  9   0.1420  -3073.81     0.02    -109.36     0.01
 10   0.1422  -3077.28    -0.12    -109.34     0.04
 11   0.1504  -3301.66     0.21    -110.92    -0.16
 12   0.1561  -3459.47     0.16    -111.12     0.19
 13   0.3033  -6831.22    -0.02     -30.46     0.00
 14   0.3034  -6832.89     0.06     -30.28     0.03
 15   0.3251  -7091.29    -0.06      -5.61    -0.01
 16   0.8790   5368.58    -0.06     106.59    -0.05
 17   0.8818   5398.44    -0.07     102.86     0.03
 18   0.9557   5660.89    -0.02      -1.49    -0.17
 19   0.9666   5610.81     0.11     -16.17     0.03
 20   1.2944  -1367.33     0.02     -99.65    -0.11
 21   1.2972  -1410.14     0.22     -96.70    -0.02
 22   1.3572  -2021.58    -0.23     -24.61     0.14
 23   1.4422  -1655.63     0.03      88.97     0.07

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.

13SS100    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.238    44.265    44.215
ecceobj         0.090     0.092     0.089
incobj          2.553     2.553     2.553
qmin           39.187    39.187    39.217
qmax           49.001    49.023    48.915
amean          43.955    43.982    43.931
amin           43.606    43.616    43.570
amax           44.334    44.350    44.315
emean           0.088     0.090     0.087
emin            0.070     0.071     0.069
emax            0.105     0.106     0.104
imean           1.752     1.749     1.757
imin            0.705     0.703     0.705
imax            2.561     2.570     2.559
excite_mean     0.094     0.095     0.093
fracstop        1.000     1.000     1.000
cjmean          3.090     3.090     3.090

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       174.4     174.2     174.7
kozaiamp        180.0     180.0     180.0