Orbit Fit and Astrometric record for 13SU100

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: 13SU100   
# Created Sat Dec 16 02:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   37 observations of   37
# Arc:   4.07y
# First observation: 2013/08/05
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000098   0.018915   0.000014   0.003191   0.022060   0.000000
# Chi-squared of fit:    20.69 DOF:   68 RMS:  0.13
# Min/Max residuals:    -0.84    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.363570E-05  1.913216E-02  2.884488E-06  3.239917E-03  2.225843E-02  4.737110E-03
# Covariance matrix:
  1.1360E-13 -4.1458E-14  1.0468E-15 -2.1765E-15  6.1736E-14 -1.6691E-13
 -4.1458E-14  1.8146E-13 -9.2510E-15  2.8860E-14  7.9797E-14  2.3649E-12
  1.0468E-15 -9.2510E-15  6.4732E-14 -2.7571E-14 -4.6313E-15 -1.4181E-13
 -2.1765E-15  2.8860E-14 -2.7571E-14  3.2777E-14  1.6037E-14  4.4406E-13
  6.1736E-14  7.9797E-14 -4.6313E-15  1.6037E-14  1.4323E-13  1.3309E-12
 -1.6691E-13  2.3649E-12 -1.4181E-13  4.4406E-13  1.3309E-12  3.6405E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.613099   13.192371    0.882389   -0.014168   -0.504055  2456509.990038
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:           96.50065 +/-     0.056
Argument of Peri:      229.54863 +/-     0.041
Long of Asc Node:       21.49470 +/-     0.000
Inclination:             9.66166 +/-     0.000
Eccentricity:         0.22783786 +/-    0.0002
Semi-Major Axis:     42.31892248 +/-    0.0056
Time of Perihelion: 2429546.1985 +/-      14.8
Perihelion:          32.67706995 +/-    0.0104
Aphelion:            51.96077501 +/-    0.0117
Period (y)              275.3025 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.41592598 +/-    0.0007
Ecliptic Y            9.50826732 +/-    0.0002
Ecliptic Z           -1.26452221 +/-    0.0000
Ecliptic XDOT         0.00003470 +/-    0.0000
Ecliptic YDOT         0.00242584 +/-    0.0000
Ecliptic ZDOT         0.00038210 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.43985744 +/-    0.0007
Geocenter to KBO     44.92679184 +/-    0.0008
# Hcoef:  7.69

The following table shows the complete astrometric record for 13SU100. 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 (13SU100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  05.48926  00 51 03.836  +03 43 19.71  24.3r 13SU100   568  C~2NKM      
2013 08  05.53771  00 51 03.751  +03 43 19.25  24.3r 13SU100   568  C~2NKM      
2013 08  08.46817  00 50 58.297  +03 42 44.95  24.1r 13SU100   568  C~2NKM      
2013 08  08.50699  00 50 58.159  +03 42 44.04  22.5r 13SU100   568  C~2NKM      
2013 08  31.55306  00 49 55.818  +03 36 17.79  23.4r 13SU100   568  C~2NKM      
2013 09  01.43879  00 49 52.844  +03 35 59.40  24.1r 13SU100   568  C~2NKM      
2013 09  01.47776  00 49 52.691  +03 35 58.69  24.1r 13SU100   568  C~2NKM      
2013 09  05.41829  00 49 38.898  +03 34 34.19  23.9r 13SU100   568  C~2NKM      
2013 09  05.45710  00 49 38.758  +03 34 33.48  24.6r 13SU100   568  C~2NKM      
2013 09  29.34928  00 48 03.505  +03 25 02.48  24.1r 13SU100   568  C~2NKM      
2013 09  29.38812  00 48 03.330  +03 25 01.50  24.1r 13SU100   568  C~2NKM      
2013 09  29.43193  00 48 03.136  +03 25 00.36  23.9r 13SU100   568  C~2NKM      
2013 10  02.42297  00 47 50.396  +03 23 45.16  24.1r 13SU100   568  C~2NKM      
2013 10  04.51453  00 47 41.428  +03 22 52.71  23.9r 13SU100   568  C~2NKM      
2013 10  04.52297  00 47 41.398  +03 22 52.50  24.2r 13SU100   568  C~2NKN      
2013 10  04.52783  00 47 41.366  +03 22 52.42  24.2r 13SU100   568  C~2NKN      
2013 11  27.27517  00 44 26.604  +03 05 00.56  24.2r 13SU100   568  C~2NKN      
2013 11  27.32692  00 44 26.484  +03 04 59.88  23.8r 13SU100   568  C~2NKN      
2013 12  05.33035  00 44 10.339  +03 03 49.30  24.1r 13SU100   568  C~2NKN      
2013 12  06.19916  00 44 08.901  +03 03 43.45  24.0r 13SU100   568  C~2NKN      
2014 06  25.58886  00 54 52.276  +04 19 20.42  24.1r 13SU100   568  C~2NKN      
2014 06  26.58771  00 54 53.764  +04 19 29.76  24.0r 13SU100   568  C~2NKN      
2014 07  23.56365  00 55 04.148  +04 20 32.25  24.0r 13SU100   568  C~2NKN      
2014 07  27.54407  00 55 00.818  +04 20 11.27  25.1r 13SU100   568  C~2NKN      
2014 08  23.62686  00 54 07.540  +04 14 44.10  24.3r 13SU100   568  C~2NKN      
2014 08  28.45428  00 53 53.075  +04 13 15.88  24.5r 13SU100   568  C~2NKN      
2014 10  23.29554  00 50 10.939  +03 51 28.32  24.0r 13SU100   568  C~2NKN      
2014 10  27.26220  00 49 54.972  +03 49 58.11  24.3r 13SU100   568  C~2NKN      
2014 11  24.25164  00 48 20.778  +03 41 32.33  24.2r 13SU100   568  C~2NKN      
2014 11  25.24784  00 48 18.234  +03 41 19.73  24.3r 13SU100   568  C~2NKN      
2015 01  18.23045  00 47 55.190  +03 42 21.98  24.5r 13SU100   568  C~2NKN      
2015 08  20.52724  00 58 00.610  +04 51 00.68  24.2r 13SU100   568  C~2NKN      
2015 12  07.36547  00 51 36.685  +04 14 48.34  25.1w 13SU100   568  C~2NKN      
2017 07  17.61600  01 06 05.567  +06 04 23.91        13SU100   568  C~2NKN      
2017 07  23.61854  01 06 04.159  +06 04 19.17        13SU100   568  C~2NKN      
2017 08  30.45058  01 04 54.207  +05 57 41.10  24.6w 13SU100   568  C~2NKN      
2017 08  30.49734  01 04 54.054  +05 57 40.40  24.6w 13SU100   568  C~2NKN      

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    -0.01       0.00    -0.12
  2   0.0001     -1.35     0.07       0.07    -0.07
  3   0.0082    -89.90     0.15       0.14     0.12
  4   0.0083    -92.16    -0.84       0.11     0.07
  5   0.0714  -1102.13    -0.01       6.48     0.03
  6   0.0738  -1150.30     0.22       6.83    -0.11
  7   0.0739  -1152.69     0.02       7.06     0.09
  8   0.0847  -1375.80     0.04       9.41    -0.26
  9   0.0848  -1378.00     0.13       9.57    -0.15
 10   0.1502  -2914.12     0.13      37.74    -0.00
 11   0.1503  -2916.91     0.03      37.85     0.03
 12   0.1504  -2920.03    -0.05      37.93     0.02
 13   0.1586  -3125.07     0.08      42.83    -0.09
 14   0.1643  -3269.21    -0.03      46.74     0.07
 15   0.1644  -3269.71     0.06      46.72     0.03
 16   0.1644  -3270.18    -0.07      46.83     0.14
 17   0.3115  -6375.89     0.02     195.15     0.06
 18   0.3117  -6377.81     0.02     195.22    -0.08
 19   0.3336  -6628.27    -0.09     224.48     0.06
 20   0.3360  -6650.41     0.08     227.49    -0.10
 21   0.8873   3988.92     0.05     667.13     0.02
 22   0.8901   4013.07     0.13     667.12     0.11
 23   0.9639   4180.53     0.08     664.64     0.04
 24   0.9748   4126.47     0.00     664.57    -0.01
 25   1.0490   3264.74    -0.07     671.39     0.29
 26   1.0622   3031.02     0.04     673.85     0.03
 27   1.2151   -539.94    -0.12     757.65     0.12
 28   1.2259   -795.19    -0.05     767.33    -0.02
 29   1.3026  -2290.90    -0.06     849.21    -0.05
 30   1.3053  -2330.89     0.06     852.41    -0.12
 31   1.4531  -2624.52    -0.03    1043.92    -0.10
 32   2.0398   7323.18     0.03    1331.75     0.03
 33   2.3378   1185.90     0.01    1549.97    -0.05
 34   3.9483  15728.84     0.08    2616.53     0.10
 35   3.9648  15707.50    -0.01    2620.19    -0.03
 36   4.0683  14585.01    -0.03    2651.91    -0.13
 37   4.0685  14582.63    -0.06    2652.13     0.02

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.

13SU100    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.538    42.554    42.522
ecceobj         0.228     0.228     0.227
incobj          9.636     9.636     9.636
qmin           31.625    31.576    31.697
qmax           53.544    53.646    53.579
amean          42.327    42.327    42.327
amin           41.896    41.892    41.883
amax           42.846    42.852    42.841
emean           0.230     0.230     0.229
emin            0.209     0.209     0.209
emax            0.252     0.252     0.251
imean           9.727     9.738     9.755
imin            8.811     8.780     8.943
imax           10.292    10.353    10.249
excite_mean     0.285     0.286     0.285
fracstop        1.000     1.000     1.000
cjmean          2.986     2.986     2.986

libcent 0       179.3     178.9     179.3
libamp  0        65.6      65.9      63.8
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       184.5     184.9     183.5
kozaiamp        180.0     179.9     180.0