Orbit Fit and Astrometric record for 13SP100

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: 13SP100   
# Created Sat Dec 16 02:37:56 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   4.08y
# First observation: 2013/08/02
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000123   0.023957   0.000007   0.003515   0.024361   0.000000
# Chi-squared of fit:    15.10 DOF:   60 RMS:  0.12
# Min/Max residuals:    -0.35    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.521159E-05  2.403324E-02  2.289926E-06  3.537681E-03  2.445104E-02  3.659160E-03
# Covariance matrix:
  1.3350E-13 -7.5232E-14  2.3281E-15 -6.9167E-15  8.1156E-14 -4.8059E-13
 -7.5232E-14  3.1904E-13 -1.3203E-14  4.6091E-14  8.6544E-14  3.2635E-12
  2.3281E-15 -1.3203E-14  6.5848E-14 -2.6521E-14 -3.8968E-15 -1.4818E-13
 -6.9167E-15  4.6091E-14 -2.6521E-14  3.5657E-14  1.5566E-14  5.1912E-13
  8.1156E-14  8.6544E-14 -3.8968E-15  1.5566E-14  1.8189E-13  1.1170E-12
 -4.8059E-13  3.2635E-12 -1.4818E-13  5.1912E-13  1.1170E-12  3.6770E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.766750   14.950348    0.920469   -0.005752   -0.431899  2456507.009328
# Heliocentric elements and errors
Epoch:              2456500.5000  =  2013/07/27
Mean Anomaly:           58.26937 +/-     0.018
Argument of Peri:      281.95620 +/-     0.027
Long of Asc Node:       18.84434 +/-     0.000
Inclination:             8.36330 +/-     0.000
Eccentricity:         0.13716617 +/-    0.0003
Semi-Major Axis:     43.84022145 +/-    0.0053
Time of Perihelion: 2439339.3902 +/-       4.3
Perihelion:          37.82682640 +/-    0.0122
Aphelion:            49.85361651 +/-    0.0129
Period (y)              290.2801 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           40.16467182 +/-    0.0007
Ecliptic Y            9.77524242 +/-    0.0002
Ecliptic Z           -0.54715613 +/-    0.0000
Ecliptic XDOT        -0.00029953 +/-    0.0000
Ecliptic YDOT         0.00270621 +/-    0.0000
Ecliptic ZDOT         0.00039075 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.34072576 +/-    0.0007
Geocenter to KBO     40.89805080 +/-    0.0007
# Hcoef:  8.39

The following table shows the complete astrometric record for 13SP100. 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 (13SP100) followed by the observatory code and reference code for the source of the astrometry.

2013 08  02.50855  00 56 15.125  +05 10 57.84  24.6r 13SP100   568  C~2NKM      
2013 08  02.55128  00 56 15.059  +05 10 57.49  24.5r 13SP100   568  C~2NKM      
2013 08  11.50755  00 55 58.590  +05 09 24.59  25.3r 13SP100   568  C~2NKM      
2013 08  31.54522  00 55 00.562  +05 03 47.49  24.9r 13SP100   568  C~2NKM      
2013 08  31.58437  00 55 00.446  +05 03 46.66        13SP100   568  C~2NKM      
2013 08  31.58891  00 55 00.436  +05 03 46.66  24.1r 13SP100   568  C~2NKM      
2013 09  01.43103  00 54 57.409  +05 03 29.19  23.9r 13SP100   568  C~2NKM      
2013 09  01.46986  00 54 57.291  +05 03 28.27  24.9r 13SP100   568  C~2NKM      
2013 09  05.41054  00 54 42.747  +05 02 03.23  24.6r 13SP100   568  C~2NKM      
2013 09  05.44934  00 54 42.582  +05 02 02.29  24.3r 13SP100   568  C~2NKM      
2013 09  29.33623  00 53 00.949  +04 52 07.75  24.0r 13SP100   568  C~2NKM      
2013 09  29.34144  00 53 00.904  +04 52 07.60  24.4r 13SP100   568  C~2NKM      
2013 09  29.38034  00 53 00.737  +04 52 06.65  24.4r 13SP100   568  C~2NKM      
2013 09  29.42409  00 53 00.524  +04 52 05.36  24.4r 13SP100   568  C~2NKM      
2013 10  04.49793  00 52 37.178  +04 49 49.64  24.8r 13SP100   568  C~2NKM      
2013 10  04.50677  00 52 37.131  +04 49 49.26  24.5r 13SP100   568  C~2NKM      
2013 10  09.47306  00 52 14.179  +04 47 36.01  24.0r 13SP100   568  C~2NKM      
2013 11  27.26738  00 49 04.840  +04 29 56.93  24.4r 13SP100   568  C~2NKM      
2013 11  27.31186  00 49 04.730  +04 29 56.26  24.9r 13SP100   568  C~2NKM      
2013 12  05.22570  00 48 47.128  +04 28 29.97  23.6r 13SP100   568  C~2NKM      
2014 06  27.57836  01 00 54.759  +05 52 22.10  24.6r 13SP100   568  C~2NKM      
2014 06  28.58343  01 00 56.480  +05 52 34.04  24.9r 13SP100   568  C~2NKM      
2014 07  27.53499  01 01 08.576  +05 54 24.57  23.5r 13SP100   568  C~2NKM      
2014 08  22.54836  01 00 19.204  +05 49 54.83  24.7r 13SP100   568  C~2NKM      
2014 08  28.40993  01 00 01.193  +05 48 12.18  24.7r 13SP100   568  C~2NKM      
2014 08  28.44652  01 00 01.076  +05 48 11.39  24.3r 13SP100   568  C~2NKM      
2014 10  23.37180  00 56 02.601  +05 25 17.14  24.5r 13SP100   568  C~2NKM      
2014 10  27.41049  00 55 44.835  +05 23 36.26  24.3r 13SP100   568  C~2NKM      
2015 01  17.27427  00 53 30.128  +05 13 21.98  24.5r 13SP100   568  C~2NKM      
2017 07  24.58642  01 15 18.788  +07 59 49.85  24.9w 13SP100   568  C~2NKM      
2017 08  25.51309  01 14 27.527  +07 55 49.32  24.5w 13SP100   568  C~2NKM      
2017 08  30.45523  01 14 12.691  +07 54 30.35  24.6w 13SP100   568  C~2NKM      
2017 08  30.50199  01 14 12.534  +07 54 29.56  24.2w 13SP100   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     0.07       0.00    -0.00
  2   0.0001     -1.04     0.07       0.06    -0.00
  3   0.0246   -263.87     0.05       9.31     0.18
  4   0.0795  -1193.77    -0.26      33.15     0.03
  5   0.0796  -1195.69     0.08      33.05    -0.13
  6   0.0796  -1195.82     0.21      33.11    -0.08
  7   0.0819  -1244.29    -0.34      34.47     0.22
  8   0.0820  -1246.27    -0.05      34.30    -0.02
  9   0.0928  -1479.58     0.04      39.84     0.05
 10   0.0929  -1482.22    -0.19      39.92     0.06
 11   0.1583  -3112.98     0.13      79.03    -0.06
 12   0.1583  -3113.66    -0.16      79.15     0.05
 13   0.1584  -3116.33     0.06      79.24     0.05
 14   0.1586  -3119.77    -0.11      79.28    -0.01
 15   0.1725  -3494.13     0.07      89.22     0.12
 16   0.1725  -3494.93    -0.06      89.14     0.02
 17   0.1861  -3862.95     0.30      99.14    -0.03
 18   0.3197  -6884.99    -0.06     220.83    -0.01
 19   0.3198  -6886.76    -0.00     220.85    -0.14
 20   0.3415  -7163.16     0.07     243.58    -0.20
 21   0.9009   4810.49     0.16     685.50    -0.09
 22   0.9037   4838.80     0.07     686.66    -0.06
 23   0.9830   5048.01     0.02     719.42    -0.35
 24   1.0542   4263.82     0.06     753.36     0.05
 25   1.0702   3976.12    -0.13     761.90     0.20
 26   1.0703   3974.20    -0.11     761.84     0.07
 27   1.2234    159.06     0.07     864.92    -0.06
 28   1.2345   -124.62    -0.01     874.28     0.15
 29   1.4586  -2217.74    -0.04    1085.36    -0.06
 30   3.9756  19677.93     0.04    2867.56    -0.04
 31   4.0630  18874.97     0.03    2931.87     0.01
 32   4.0765  18639.10    -0.00    2941.86     0.02
 33   4.0766  18636.62    -0.08    2942.01     0.05

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.

13SP100    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        44.093    44.109    44.076
ecceobj         0.141     0.142     0.141
incobj          8.343     8.343     8.343
qmin           35.980    34.800    35.483
qmax           52.085    53.434    52.683
amean          43.759    43.732    43.725
amin           43.253    43.200    43.240
amax           44.269    44.335    44.290
emean           0.142     0.169     0.147
emin            0.110     0.126     0.113
emax            0.177     0.205     0.190
imean           7.379     7.337     7.795
imin            6.046     4.994     6.192
imax            8.944     9.791     9.141
excite_mean     0.192     0.214     0.201
fracstop        1.000     1.000     1.000
cjmean          3.054     3.043     3.049

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       183.2     182.6     179.3
kozaiamp        180.0     180.0     180.0