Orbit Fit and Astrometric record for 11HK103

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: 11HK103   
# Created Sat Oct 21 01:37:56 2017
# Orbit generated from Bernstein formalism
# Fitting   63 observations of   63
# Arc:   3.17y
# First observation: 2011/04/28
#  Last observation: 2014/06/27
Preliminary a, adot, b, bdot, g, gdot:
   0.000100   0.023091   0.000004  -0.002364   0.023501   0.000000
# Chi-squared of fit:    29.18 DOF:  120 RMS:  0.12
# Min/Max residuals:    -0.35    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.529306E-05  2.250080E-02 -1.561045E-06 -2.303385E-03  2.285054E-02 -5.755690E-03
# Covariance matrix:
  1.2116E-13  1.1404E-14 -9.0484E-16 -3.6726E-15  1.0841E-13  5.9352E-13
  1.1404E-14  1.6596E-13  1.6253E-15 -1.7411E-14  1.6354E-13  2.8456E-12
 -9.0484E-16  1.6253E-15  7.4240E-14 -3.1316E-14 -6.1701E-16  4.0371E-14
 -3.6726E-15 -1.7411E-14 -3.1316E-14  2.0762E-14 -1.6954E-14 -3.4516E-13
  1.0841E-13  1.6354E-13 -6.1701E-16 -1.6954E-14  2.8956E-13  2.7591E-12
  5.9352E-13  2.8456E-12  4.0371E-14 -3.4516E-13  2.7591E-12  5.6455E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.721341  -82.448396    0.876433    0.023800   -0.501227  2455679.768846
# Heliocentric elements and errors
Epoch:              2455670.5000  =  2011/04/19
Mean Anomaly:          317.94412 +/-     0.018
Argument of Peri:      229.17068 +/-     0.020
Long of Asc Node:      121.12089 +/-     0.001
Inclination:             6.41523 +/-     0.000
Eccentricity:         0.31394906 +/-    0.0004
Semi-Major Axis:     53.36231794 +/-    0.0148
Time of Perihelion: 2472303.6552 +/-       1.8
Perihelion:          36.60926843 +/-    0.0216
Aphelion:            70.11536745 +/-    0.0272
Period (y)              389.8165 +/-      0.16
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            4.94655532 +/-    0.0001
Ecliptic Y          -43.94670178 +/-    0.0010
Ecliptic Z            2.07772750 +/-    0.0001
Ecliptic XDOT         0.00258187 +/-    0.0000
Ecliptic YDOT         0.00103012 +/-    0.0000
Ecliptic ZDOT        -0.00030838 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.27299356 +/-    0.0010
Geocenter to KBO     43.76264817 +/-    0.0010
# Hcoef:  8.42

The following table shows the complete astrometric record for 11HK103. 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 (11HK103) followed by the observatory code and reference code for the source of the astrometry.

2011 04  28.26808  18 32 13.60   -20 30 25.2         11HK103   268  C~11qb      
2011 04  28.36805  18 32 13.40   -20 30 25.2         11HK103   268  C~11qb      
2011 04  30.27063  18 32 09.65   -20 30 24.2         11HK103   268  C~11qb      
2011 04  30.39635  18 32 09.38   -20 30 24.3         11HK103   268  C~11qb      
2011 05  06.36890  18 31 55.57   -20 30 23.9         11HK103   268  C~11qb      
2011 05  31.43696  18 30 29.87   -20 30 59.5         11HK103   268  C~11qb      
2011 05  31.48809  18 30 29.68   -20 30 59.8         11HK103   266  C~11qb      
2011 05  31.56672  18 30 29.35   -20 30 59.9         11HK103   266  C~11qb      
2011 06  01.59657  18 30 25.04   -20 31 02.7         11HK103   266  C~11qb      
2011 06  04.14568  18 30 14.18   -20 31 09.5         11HK103   268  C~11qb      
2011 06  04.29530  18 30 13.52   -20 31 10.2         11HK103   268  C~11qb      
2011 06  04.39266  18 30 13.11   -20 31 10.4         11HK103   268  C~11qb      
2011 07  01.35670  18 28 07.08   -20 32 55.7         11HK103   269  C~11qb      
2011 07  02.03941  18 28 03.81   -20 32 58.7         11HK103   269  C~11qb      
2011 07  02.14714  18 28 03.28   -20 32 59.4         11HK103   269  C~11qb      
2011 07  02.14771  18 28 03.28   -20 32 59.4         11HK103   269  C~11qb      
2011 07  02.25740  18 28 02.74   -20 33 00.0         11HK103   269  C~11qb      
2011 07  02.25798  18 28 02.74   -20 32 59.9         11HK103   269  C~11qb      
2011 07  02.28855  18 28 02.60   -20 33 00.4         11HK103   266  C~11qb      
2011 07  02.53920  18 28 01.37   -20 33 01.7         11HK103   266  C~11qb      
2013 06  03.21749  18 41 32.61   -20 37 35.3         11HK103   268  C~11qb      
2013 06  03.27688  18 41 32.35   -20 37 35.5         11HK103   268  C~11qb      
2013 06  04.21140  18 41 28.39   -20 37 39.3         11HK103   268  C~11qb      
2013 06  04.28988  18 41 28.05   -20 37 39.6         11HK103   268  C~11qb      
2013 06  04.36359  18 41 27.74   -20 37 39.9         11HK103   268  C~11qb      
2013 06  08.17983  18 41 11.14   -20 37 56.3         11HK103   268  C~11qb      
2013 06  08.22941  18 41 10.91   -20 37 56.5         11HK103   268  C~11qb      
2013 06  08.26997  18 41 10.73   -20 37 56.7         11HK103   268  C~11qb      
2013 06  11.21626  18 40 57.52   -20 38 10.3         11HK103   268  C~11qb      
2013 06  11.27933  18 40 57.22   -20 38 10.5         11HK103   268  C~11qb      
2013 06  13.21699  18 40 48.37   -20 38 19.7         11HK103   268  C~11qb      
2013 06  13.27759  18 40 48.08   -20 38 20.0         11HK103   268  C~11qb      
2013 06  13.35667  18 40 47.71   -20 38 20.5         11HK103   268  C~11qb      
2013 06  13.37736  18 40 47.62   -20 38 20.6         11HK103   268  C~11qb      
2013 07  02.16685  18 39 17.63   -20 40 04.5         11HK103   268  C~11qb      
2013 07  03.16722  18 39 12.74   -20 40 10.6   24.7R 11HK103   268  C~11qb      
2013 07  03.21583  18 39 12.51   -20 40 10.8   24.4R 11HK103   268  C~11qb      
2013 07  03.29283  18 39 12.13   -20 40 11.3   24.1R 11HK103   268  C~11qb      
2013 07  04.19617  18 39 07.74   -20 40 16.9         11HK103   268  C~11qb      
2013 07  04.22277  18 39 07.60   -20 40 17.0         11HK103   268  C~11qb      
2013 07  04.26659  18 39 07.37   -20 40 17.3         11HK103   268  C~11qb      
2013 07  04.28468  18 39 07.29   -20 40 17.5         11HK103   268  C~11qb      
2013 07  04.32105  18 39 07.16   -20 40 18.1         11HK103   266  C~11qb      
2013 07  04.49429  18 39 06.31   -20 40 19.2         11HK103   266  C~11qb      
2013 07  05.40444  18 39 01.89   -20 40 24.9         11HK103   266  C~11qb      
2013 07  05.48836  18 39 01.46   -20 40 25.4         11HK103   266  C~11qb      
2013 07  06.31422  18 38 57.43   -20 40 30.5         11HK103   266  C~11qb      
2013 07  06.40236  18 38 57.00   -20 40 31.0         11HK103   266  C~11qb      
2013 07  06.48552  18 38 56.60   -20 40 31.5         11HK103   266  C~11qb      
2013 08  28.07314  18 35 33.69   -20 46 17.8         11HK103   268  C~11qb      
2013 08  30.06766  18 35 29.45   -20 46 30.0         11HK103   268  C~11qb      
2013 09  01.05156  18 35 25.57   -20 46 41.9         11HK103   268  C~11qb      
2013 09  03.04605  18 35 22.02   -20 46 53.7         11HK103   268  C~11qb      
2013 09  04.04833  18 35 20.37   -20 46 59.6         11HK103   268  C~11qb      
2013 09  06.04337  18 35 17.35   -20 47 11.0         11HK103   268  C~11qb      
2014 06  25.36079  18 45 37.028  -20 41 50.51        11HK103   266  C~2Gt6      
2014 06  25.41554  18 45 36.754  -20 41 50.94        11HK103   266  C~2Gt6      
2014 06  25.42936  18 45 36.687  -20 41 50.92        11HK103   266  C~2Gt6      
2014 06  25.43035  18 45 36.685  -20 41 50.88        11HK103   266  C~2Gt6      
2014 06  25.52625  18 45 36.214  -20 41 51.60        11HK103   266  C~2Gt6      
2014 06  25.54714  18 45 36.107  -20 41 51.67        11HK103   266  C~2Gt6      
2014 06  27.36374  18 45 27.281  -20 42 03.37        11HK103   266  C~2Gt7      
2014 06  27.37057  18 45 27.247  -20 42 03.37        11HK103   266  C~2Gt7      

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     0.06       0.00    -0.01
  2   0.0003     -2.81     0.00       0.16    -0.05
  3   0.0055    -55.35    -0.00       4.09     0.06
  4   0.0058    -59.15    -0.03       4.20    -0.08
  5   0.0222   -252.85     0.07      15.38    -0.05
  6   0.0908  -1457.03    -0.03      45.16     0.03
  7   0.0910  -1459.71     0.10      45.01     0.04
  8   0.0912  -1464.35     0.15      45.15     0.14
  9   0.0940  -1524.96     0.13      45.57     0.04
 10   0.1010  -1677.68    -0.07      46.86     0.18
 11   0.1014  -1686.98    -0.12      46.65    -0.07
 12   0.1016  -1692.74     0.13      46.75    -0.01
 13   0.1755  -3466.44    -0.00      32.12    -0.04
 14   0.1773  -3512.47     0.03      31.40     0.24
 15   0.1776  -3519.94    -0.03      31.07     0.08
 16   0.1776  -3519.94     0.01      31.07     0.08
 17   0.1779  -3527.55    -0.03      30.85     0.01
 18   0.1779  -3527.54     0.01      30.95     0.11
 19   0.1780  -3529.53    -0.11      30.54    -0.09
 20   0.1787  -3546.86    -0.16      30.10    -0.17
 21   2.0998   7811.80     0.03    -923.76    -0.01
 22   2.1000   7808.14    -0.03    -923.70     0.03
 23   2.1025   7752.33    -0.06    -923.60     0.02
 24   2.1027   7747.55    -0.04    -923.56     0.04
 25   2.1029   7743.18     0.10    -923.56     0.02
 26   2.1134   7509.25    -0.01    -923.65    -0.03
 27   2.1135   7506.01    -0.10    -923.62     0.00
 28   2.1136   7503.47    -0.06    -923.65    -0.02
 29   2.1217   7317.29     0.05    -924.34    -0.12
 30   2.1219   7313.07    -0.07    -924.25    -0.02
 31   2.1272   7188.35     0.03    -924.84     0.06
 32   2.1273   7184.26    -0.05    -924.86     0.06
 33   2.1276   7179.04    -0.06    -925.00    -0.07
 34   2.1276   7177.77     0.03    -925.01    -0.08
 35   2.1791   5909.24    -0.00    -942.98    -0.06
 36   2.1818   5840.31    -0.19    -944.49    -0.03
 37   2.1819   5837.07    -0.03    -944.47     0.06
 38   2.1821   5831.71    -0.02    -944.62     0.02
 39   2.1846   5769.81     0.01    -946.11    -0.00
 40   2.1847   5767.84    -0.10    -946.08     0.07
 41   2.1848   5764.60    -0.29    -946.16     0.05
 42   2.1849   5763.47    -0.16    -946.29    -0.05
 43   2.1849   5761.61     0.26    -946.77    -0.30
 44   2.1854   5749.62     0.37    -947.07    -0.32
 45   2.1879   5687.30     0.36    -948.64    -0.35
 46   2.1881   5681.24     0.16    -948.74    -0.32
 47   2.1904   5624.43    -0.30    -950.09    -0.23
 48   2.1906   5618.37    -0.23    -950.19    -0.16
 49   2.1909   5612.73    -0.08    -950.31    -0.16
 50   2.3349   2748.51     0.11   -1114.99     0.14
 51   2.3403   2688.40     0.06   -1123.54     0.11
 52   2.3457   2633.36    -0.00   -1132.11     0.14
 53   2.3512   2582.94     0.01   -1140.87     0.11
 54   2.3540   2559.48     0.03   -1145.36     0.05
 55   2.3594   2516.51    -0.01   -1154.17     0.11
 56   3.1597  11221.80     0.04   -1430.40     0.09
 57   3.1599  11217.92    -0.02   -1430.53     0.02
 58   3.1599  11216.99     0.01   -1430.44     0.13
 59   3.1599  11216.96     0.05   -1430.40     0.17
 60   3.1602  11210.30     0.08   -1430.61     0.05
 61   3.1602  11208.79     0.03   -1430.57     0.12
 62   3.1652  11084.05    -0.01   -1432.78     0.08
 63   3.1652  11083.57    -0.01   -1432.74     0.13

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.

11HK103    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        53.108    53.149    53.068
ecceobj         0.313     0.314     0.312
incobj          6.419     6.419     6.419
qmin           35.720    35.831    35.367
qmax           71.748    71.716    71.599
amean          53.255    53.308    52.764
amin           52.615    52.713    52.126
amax           54.007    54.024    53.864
emean           0.313     0.313     0.312
emin            0.299     0.300     0.296
emax            0.329     0.327     0.331
imean           5.283     5.171     5.465
imin            4.450     4.508     4.254
imax            6.272     6.012     6.604
excite_mean     0.327     0.326     0.326
fracstop        1.000     1.000     1.000
cjmean          3.080     3.081     3.075

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       179.9     179.7     180.5
kozaiamp        180.0     180.0     180.0