Orbit Fit and Astrometric record for 13SN100

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: 13SN100   
# Created Fri Dec 15 02:37:53 2017
# Orbit generated from Bernstein formalism
# Fitting   40 observations of   40
# Arc:   4.07y
# First observation: 2013/08/04
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000115   0.021084   0.000003  -0.002246   0.022658   0.000000
# Chi-squared of fit:    23.61 DOF:   74 RMS:  0.14
# Min/Max residuals:    -0.40    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.616848E-05  2.092227E-02 -1.447590E-06 -2.232152E-03  2.263567E-02  2.183185E-04
# Covariance matrix:
  9.2224E-14 -4.0851E-14 -3.8748E-16  2.1629E-15  5.3466E-14 -2.3727E-13
 -4.0851E-14  2.5307E-13  8.0246E-15 -2.7132E-14  1.0674E-13  2.9751E-12
 -3.8748E-16  8.0246E-15  5.3920E-14 -2.0483E-14  4.3194E-15  1.0373E-13
  2.1629E-15 -2.7132E-14 -2.0483E-14  2.5319E-14 -1.3130E-14 -3.4987E-13
  5.3466E-14  1.0674E-13  4.3194E-15 -1.3130E-14  1.5881E-13  1.4395E-12
 -2.3727E-13  2.9751E-12  1.0373E-13 -3.4987E-13  1.4395E-12  3.8364E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.137667   13.981292    0.897343   -0.009452   -0.477380  2456509.006818
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:          209.51232 +/-     0.556
Argument of Peri:      342.28239 +/-     0.556
Long of Asc Node:      182.43900 +/-     0.001
Inclination:             6.21296 +/-     0.000
Eccentricity:         0.02488367 +/-    0.0002
Semi-Major Axis:     43.71225358 +/-    0.0026
Time of Perihelion: 2500627.2218 +/-     163.0
Perihelion:          42.62453247 +/-    0.0076
Aphelion:            44.79997469 +/-    0.0076
Period (y)              289.0101 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.54072060 +/-    0.0008
Ecliptic Y            9.91934212 +/-    0.0002
Ecliptic Z           -0.87716363 +/-    0.0000
Ecliptic XDOT        -0.00059722 +/-    0.0000
Ecliptic YDOT         0.00245988 +/-    0.0000
Ecliptic ZDOT        -0.00027032 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.66494279 +/-    0.0007
Geocenter to KBO     44.17807007 +/-    0.0008
# Hcoef:  8.12

The following table shows the complete astrometric record for 13SN100. 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 (13SN100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  04.50604  00 53 14.426  +04 27 58.05  25.0r 13SN100   568  C~2NKL      
2013 08  05.48147  00 53 12.926  +04 27 45.73  24.4r 13SN100   568  C~2NKL      
2013 08  05.52035  00 53 12.819  +04 27 45.18  24.4r 13SN100   568  C~2NKL      
2013 08  05.52507  00 53 12.849  +04 27 45.20  24.6r 13SN100   568  C~2NKL      
2013 08  05.52988  00 53 12.828  +04 27 45.37  24.0r 13SN100   568  C~2NKL      
2013 08  08.46041  00 53 07.780  +04 27 05.19  24.4r 13SN100   568  C~2NKL      
2013 08  08.49923  00 53 07.731  +04 27 04.46  25.1r 13SN100   568  C~2NKL      
2013 08  31.54522  00 52 08.023  +04 19 49.23  23.9r 13SN100   568  C~2NKL      
2013 08  31.58891  00 52 07.883  +04 19 48.36  24.7r 13SN100   568  C~2NKL      
2013 09  01.43103  00 52 05.128  +04 19 28.90  24.2r 13SN100   568  C~2NKL      
2013 09  01.46986  00 52 04.993  +04 19 28.13  24.4r 13SN100   568  C~2NKL      
2013 09  05.41054  00 51 51.566  +04 17 54.36  24.1r 13SN100   568  C~2NKL      
2013 09  05.44934  00 51 51.428  +04 17 53.33  24.7r 13SN100   568  C~2NKL      
2013 09  29.33623  00 50 17.896  +04 07 18.11  24.2r 13SN100   568  C~2NKL      
2013 09  29.34144  00 50 17.871  +04 07 18.02  24.5r 13SN100   568  C~2NKL      
2013 09  29.38034  00 50 17.698  +04 07 16.98  24.3r 13SN100   568  C~2NKL      
2013 09  29.42409  00 50 17.499  +04 07 15.71  24.2r 13SN100   568  C~2NKL      
2013 10  02.40984  00 50 04.947  +04 05 52.17  24.3r 13SN100   568  C~2NKL      
2013 10  02.41506  00 50 04.896  +04 05 51.97  24.6r 13SN100   568  C~2NKL      
2013 10  04.49793  00 49 56.080  +04 04 53.09  25.1r 13SN100   568  C~2NKL      
2013 10  04.50677  00 49 56.067  +04 04 53.13  24.2r 13SN100   568  C~2NKL      
2013 11  27.26738  00 46 43.046  +03 44 00.41  24.3r 13SN100   568  C~2NKL      
2013 11  27.31186  00 46 42.947  +03 43 59.66  23.9r 13SN100   568  C~2NKL      
2013 12  05.22570  00 46 27.287  +03 42 21.88  24.7r 13SN100   568  C~2NKL      
2014 06  25.58108  00 57 46.617  +04 50 10.66  24.6r 13SN100   568  C~2NKL      
2014 06  26.57994  00 57 48.343  +04 50 18.32  24.5r 13SN100   568  C~2NKL      
2014 07  23.56754  00 58 04.366  +04 50 32.95  25.2r 13SN100   568  C~2NKL      
2014 07  27.54797  00 58 01.774  +04 50 04.17  24.4r 13SN100   568  C~2NKL      
2014 08  22.54026  00 57 15.447  +04 43 58.01  24.6r 13SN100   568  C~2NKL      
2014 08  27.61513  00 57 01.063  +04 42 14.53  24.7r 13SN100   568  C~2NKL      
2014 10  23.29554  00 53 19.340  +04 17 25.36  25.6r 13SN100   568  C~2NKL      
2014 10  27.26220  00 53 03.393  +04 15 42.47  24.1r 13SN100   568  C~2NKL      
2014 11  24.25164  00 51 29.376  +04 05 44.46  24.5r 13SN100   568  C~2NKL      
2014 11  25.24784  00 51 26.841  +04 05 28.52  24.3r 13SN100   568  C~2NKL      
2015 01  18.23045  00 51 06.406  +04 03 47.89  24.5r 13SN100   568  C~2NKL      
2017 07  24.58173  01 11 54.844  +05 51 23.87        13SN100   568  C~2NKL      
2017 08  25.54688  01 11 06.079  +05 44 35.38  24.8w 13SN100   568  C~2NKL      
2017 08  25.62549  01 11 05.861  +05 44 34.00  24.7w 13SN100   568  C~2NKL      
2017 08  30.48798  01 10 52.182  +05 42 55.39  24.6w 13SN100   568  C~2NKL      
2017 08  30.54049  01 10 52.027  +05 42 54.28  24.6w 13SN100   568  C~2NKL      

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    -0.32       0.00    -0.02
  2   0.0027    -25.45     0.19      -2.67    -0.12
  3   0.0028    -27.14    -0.40      -2.56     0.08
  4   0.0028    -26.72     0.15      -2.72    -0.06
  5   0.0028    -26.94     0.07      -2.44     0.22
  6   0.0108   -112.10    -0.09     -10.26     0.08
  7   0.0109   -113.06     0.18     -10.64    -0.22
  8   0.0740  -1104.94    -0.23     -65.99    -0.03
  9   0.0741  -1107.20    -0.09     -65.98     0.06
 10   0.0765  -1152.73    -0.03     -67.95     0.00
 11   0.0766  -1154.89    -0.03     -67.88     0.14
 12   0.0873  -1376.38     0.08     -76.49    -0.03
 13   0.0875  -1378.68     0.06     -76.63    -0.12
 14   0.1529  -2914.90     0.13    -119.50    -0.19
 15   0.1529  -2915.28     0.12    -119.44    -0.12
 16   0.1530  -2918.06     0.04    -119.39    -0.04
 17   0.1531  -2921.30    -0.15    -119.41    -0.01
 18   0.1613  -3126.84     0.26    -123.52     0.14
 19   0.1613  -3127.63    -0.16    -123.41     0.26
 20   0.1670  -3272.08    -0.25    -126.48    -0.03
 21   0.1670  -3272.24     0.21    -126.36     0.09
 22   0.3142  -6422.40     0.02    -158.13    -0.00
 23   0.3143  -6424.06     0.05    -158.25    -0.14
 24   0.3360  -6678.30     0.12    -157.12     0.00
 25   0.8900   4268.87    -0.05    -343.54     0.06
 26   0.8927   4295.63     0.10    -346.42     0.07
 27   0.9666   4522.34     0.09    -425.30     0.25
 28   0.9775   4475.48     0.30    -436.92     0.15
 29   1.0487   3695.04    -0.03    -507.62     0.06
 30   1.0626   3456.66    -0.12    -520.10    -0.01
 31   1.2178   -177.19     0.02    -611.81    -0.17
 32   1.2286   -436.96    -0.08    -614.31     0.03
 33   1.3053  -1965.37    -0.02    -620.66    -0.05
 34   1.3080  -2006.51     0.04    -620.65    -0.18
 35   1.4558  -2327.40    -0.16    -594.85    -0.21
 36   3.9701  17418.47     0.04   -1808.39    -0.12
 37   4.0576  16584.41    -0.10   -1909.22    -0.03
 38   4.0578  16580.86    -0.08   -1909.25     0.12
 39   4.0711  16353.08     0.03   -1922.65     0.06
 40   4.0713  16350.50     0.09   -1922.79     0.03

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.

13SN100    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.936    43.944    43.928
ecceobj         0.019     0.019     0.019
incobj          6.194     6.194     6.194
qmin           41.791    41.761    41.770
qmax           45.750    45.788    45.757
amean          43.688    43.695    43.681
amin           43.356    43.361    43.344
amax           44.026    44.035    44.024
emean           0.025     0.025     0.024
emin            0.009     0.009     0.009
emax            0.040     0.040     0.040
imean           6.520     6.520     6.521
imin            5.939     5.947     5.934
imax            7.172     7.172     7.180
excite_mean     0.116     0.116     0.116
fracstop        1.000     1.000     1.000
cjmean          3.082     3.082     3.082

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       178.1     176.5     179.9
kozaiamp        180.0     179.9     180.0