Orbit Fit and Astrometric record for 13ST100

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: 13ST100   
# Created Sat Dec 16 02:37:57 2017
# Orbit generated from Bernstein formalism
# Fitting   36 observations of   36
# Arc:   1.45y
# First observation: 2013/08/05
#  Last observation: 2015/01/18
Preliminary a, adot, b, bdot, g, gdot:
  -0.000107   0.023451  -0.000009  -0.006063   0.024661   0.000000
# Chi-squared of fit:    11.79 DOF:   66 RMS:  0.10
# Min/Max residuals:    -0.30    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.461139E-05  2.338128E-02 -3.926307E-06 -6.061691E-03  2.467456E-02 -1.005015E-03
# Covariance matrix:
  1.7311E-13  9.5022E-14  1.3330E-14 -1.0121E-13  2.6720E-13  1.2301E-11
  9.5022E-14  4.4697E-13  2.4356E-14 -1.8657E-13  4.7651E-13  2.2702E-11
  1.3330E-14  2.4356E-14  8.0391E-14 -9.0605E-14  3.7728E-14  2.0355E-12
 -1.0121E-13 -1.8657E-13 -9.0605E-14  2.7749E-13 -2.8691E-13 -1.6285E-11
  2.6720E-13  4.7651E-13  3.7728E-14 -2.8691E-13  7.5300E-13  3.4878E-11
  1.2301E-11  2.2702E-11  2.0355E-12 -1.6285E-11  3.4878E-11  1.9927E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.628732   13.013938    0.880848   -0.023223   -0.506410  2456509.986158
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:          272.49531 +/-     0.153
Argument of Peri:      285.07634 +/-     0.118
Long of Asc Node:      181.92730 +/-     0.001
Inclination:            14.82902 +/-     0.001
Eccentricity:         0.06471770 +/-    0.0018
Semi-Major Axis:     40.98940013 +/-    0.0100
Time of Perihelion: 2479799.3554 +/-      39.8
Perihelion:          38.33666029 +/-    0.0758
Aphelion:            43.64213998 +/-    0.0760
Period (y)              262.4312 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.13714052 +/-    0.0014
Ecliptic Y            8.37573543 +/-    0.0003
Ecliptic Z           -1.85886695 +/-    0.0001
Ecliptic XDOT        -0.00072903 +/-    0.0000
Ecliptic YDOT         0.00249483 +/-    0.0000
Ecliptic ZDOT        -0.00066663 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.04385922 +/-    0.0014
Geocenter to KBO     40.52756461 +/-    0.0014
# Hcoef:  8.16

The following table shows the complete astrometric record for 13ST100. 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 (13ST100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  05.48538  00 51 59.068  +02 43 00.84  24.7r 13ST100   568  C~2NKM      
2013 08  05.53383  00 51 58.986  +02 42 59.79  27.5r 13ST100   568  C~2NKM      
2013 08  08.46429  00 51 53.633  +02 42 04.55  24.2r 13ST100   568  C~2NKM      
2013 08  08.50311  00 51 53.559  +02 42 03.75  24.5r 13ST100   568  C~2NKM      
2013 08  31.54913  00 50 49.786  +02 32 44.50  24.1r 13ST100   568  C~2NKM      
2013 08  31.59296  00 50 49.627  +02 32 43.00  23.6r 13ST100   568  C~2NKM      
2013 08  31.59772  00 50 49.611  +02 32 43.01  24.0r 13ST100   568  C~2NKM      
2013 08  31.60285  00 50 49.606  +02 32 43.00  24.0r 13ST100   568  C~2NKM      
2013 08  31.60762  00 50 49.556  +02 32 42.63  23.6r 13ST100   568  C~2NKM      
2013 08  31.61256  00 50 49.555  +02 32 42.66  24.1r 13ST100   568  C~2NKM      
2013 09  01.43491  00 50 46.665  +02 32 19.15  23.9r 13ST100   568  C~2NKM      
2013 09  01.47388  00 50 46.532  +02 32 18.17  24.4r 13ST100   568  C~2NKM      
2013 09  05.41441  00 50 32.124  +02 30 23.26  23.8r 13ST100   568  C~2NKM      
2013 09  05.45322  00 50 31.970  +02 30 22.17  23.8r 13ST100   568  C~2NKM      
2013 09  29.34540  00 48 51.640  +02 17 46.20  23.7r 13ST100   568  C~2NKM      
2013 09  29.38422  00 48 51.459  +02 17 45.06  24.1r 13ST100   568  C~2NKM      
2013 09  29.42805  00 48 51.255  +02 17 43.49  24.4r 13ST100   568  C~2NKM      
2013 10  02.41909  00 48 37.757  +02 16 06.11  23.9r 13ST100   568  C~2NKM      
2013 10  04.51065  00 48 28.269  +02 14 57.96  23.4r 13ST100   568  C~2NKM      
2013 10  09.47694  00 48 05.728  +02 12 17.34  23.9r 13ST100   568  C~2NKM      
2013 11  27.27126  00 45 03.111  +01 51 42.62  23.7r 13ST100   568  C~2NKM      
2013 11  27.31577  00 45 03.004  +01 51 41.92  24.1r 13ST100   568  C~2NKM      
2014 06  25.57325  00 57 21.054  +02 59 50.40  24.2r 13ST100   568  C~2NKM      
2014 06  26.57215  00 57 22.969  +02 59 54.28  24.1r 13ST100   568  C~2NKM      
2014 07  23.55975  00 57 42.125  +02 58 09.90  24.4r 13ST100   568  C~2NKM      
2014 07  27.53892  00 57 39.553  +02 57 20.76  24.2r 13ST100   568  C~2NKM      
2014 08  24.49378  00 56 45.155  +02 48 03.83  24.2r 13ST100   568  C~2NKM      
2014 08  28.46592  00 56 32.811  +02 46 18.62  24.4r 13ST100   568  C~2NKM      
2014 10  23.31499  00 52 37.909  +02 17 21.83  23.9r 13ST100   568  C~2NKM      
2014 10  27.27777  00 52 20.882  +02 15 26.36  23.8r 13ST100   568  C~2NKM      
2014 10  27.28165  00 52 20.869  +02 15 26.27  24.3r 13ST100   568  C~2NKM      
2014 10  27.28553  00 52 20.851  +02 15 26.15  24.2r 13ST100   568  C~2NKM      
2014 11  24.25948  00 50 40.897  +02 04 34.14  24.4r 13ST100   568  C~2NKM      
2014 11  25.28578  00 50 38.114  +02 04 16.68  23.9r 13ST100   568  C~2NKM      
2015 01  17.24876  00 50 18.838  +02 03 15.93  24.3r 13ST100   568  C~2NKM      
2015 01  18.25083  00 50 20.953  +02 03 30.60  23.9r 13ST100   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     0.08       0.00     0.01
  2   0.0001     -1.54     0.07      -0.49    -0.17
  3   0.0082    -96.89     0.04     -20.28    -0.04
  4   0.0083    -98.23     0.08     -20.59    -0.11
  5   0.0714  -1195.98     0.06    -165.13     0.09
  6   0.0715  -1198.76    -0.06    -165.58    -0.13
  7   0.0715  -1198.97     0.01    -165.48    -0.01
  8   0.0715  -1199.05     0.25    -165.46     0.04
  9   0.0715  -1199.88    -0.30    -165.51     0.02
 10   0.0715  -1199.88    -0.00    -165.48     0.08
 11   0.0738  -1248.92    -0.08    -170.33     0.01
 12   0.0739  -1251.14     0.08    -170.46     0.08
 13   0.0847  -1494.74    -0.00    -192.53     0.01
 14   0.0848  -1497.29    -0.05    -192.64     0.09
 15   0.1502  -3176.71    -0.04    -305.26    -0.11
 16   0.1503  -3179.66    -0.04    -305.26     0.02
 17   0.1504  -3183.08    -0.14    -305.52    -0.09
 18   0.1586  -3407.39    -0.03    -316.64     0.10
 19   0.1643  -3564.95    -0.05    -324.17     0.05
 20   0.1779  -3938.80    -0.21    -340.87    -0.05
 21   0.3115  -6943.16     0.15    -413.88     0.07
 22   0.3117  -6944.91     0.16    -413.90     0.03
 23   0.8873   4839.06     0.16    -938.54    -0.02
 24   0.8900   4867.03    -0.04    -946.06     0.05
 25   0.9639   5091.39    -0.04   -1153.41     0.23
 26   0.9748   5036.82    -0.07   -1183.83     0.02
 27   1.0514   4069.38     0.06   -1382.00     0.00
 28   1.0622   3858.05     0.05   -1407.41    -0.12
 29   1.2151    -60.57    -0.09   -1644.32    -0.02
 30   1.2260   -340.59    -0.08   -1651.75    -0.05
 31   1.2260   -340.80    -0.02   -1651.76    -0.05
 32   1.2260   -341.10    -0.04   -1651.77    -0.05
 33   1.3026  -1975.06     0.35   -1671.29     0.10
 34   1.3054  -2020.29    -0.05   -1671.18    -0.05
 35   1.4504  -2310.20    -0.08   -1614.99    -0.02
 36   1.4532  -2275.28    -0.08   -1613.78    -0.00

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.

13ST100    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.179    41.201    41.159
ecceobj         0.062     0.067     0.058
incobj         14.785    14.785    14.785
qmin           37.387    37.259    37.546
qmax           44.803    44.955    44.569
amean          40.970    40.984    40.949
amin           40.648    40.655    40.633
amax           41.313    41.319    41.285
emean           0.067     0.072     0.063
emin            0.051     0.057     0.048
emax            0.084     0.089     0.080
imean          15.404    15.415    15.395
imin           14.431    14.432    14.426
imax           16.259    16.286    16.224
excite_mean     0.274     0.275     0.273
fracstop        1.000     1.000     1.000
cjmean          2.978     2.978     2.979

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       182.5     182.4     183.3
kozaiamp        179.9     180.0     180.0