Orbit Fit and Astrometric record for 99HS11

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: 99HS11    
# Created Fri Dec 15 02:36:57 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:  15.02y
# First observation: 1999/04/17
#  Last observation: 2014/04/25
Preliminary a, adot, b, bdot, g, gdot:
  -0.001650   0.023275   0.000023  -0.000155   0.027305   0.000000
# Chi-squared of fit:   133.55 DOF:   60 RMS:  0.36
# Min/Max residuals:    -1.62    0.88
# Exact a, adot, b, bdot, g, gdot:
  1.339760E-05  2.228594E-02 -6.825327E-07 -1.533795E-04  2.337561E-02 -4.202569E-04
# Covariance matrix:
  1.4367E-13 -5.5825E-14 -8.6029E-16  2.8782E-16 -1.0165E-13 -1.3261E-13
 -5.5825E-14  3.8779E-14  7.6985E-16 -2.1565E-16  1.0367E-13  1.0132E-13
 -8.6029E-16  7.6985E-16  8.0173E-14 -9.1630E-15  3.2090E-15  2.0417E-15
  2.8782E-16 -2.1565E-16 -9.1630E-15  2.3139E-15 -5.1629E-16 -6.0838E-16
 -1.0165E-13  1.0367E-13  3.2090E-15 -5.1629E-16  5.4809E-13  2.6388E-13
 -1.3261E-13  1.0132E-13  2.0417E-15 -6.0838E-16  2.6388E-13  2.8380E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.630140 -155.591117   -0.038439    0.046134   -1.009532  2451285.703223
# Heliocentric elements and errors
Epoch:              2451280.5000  =  1999/04/12
Mean Anomaly:          275.81809 +/-     0.240
Argument of Peri:      185.06969 +/-     0.253
Long of Asc Node:      105.66935 +/-     0.003
Inclination:             2.60043 +/-     0.000
Eccentricity:         0.01855803 +/-    0.0000
Semi-Major Axis:     43.84926192 +/-    0.0050
Time of Perihelion: 2476080.8678 +/-      70.6
Perihelion:          43.03550587 +/-    0.0051
Aphelion:            44.66301798 +/-    0.0053
Period (y)              290.3699 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -39.81091463 +/-    0.0012
Ecliptic Y          -18.11236220 +/-    0.0006
Ecliptic Z            1.96308218 +/-    0.0001
Ecliptic XDOT         0.00112025 +/-    0.0000
Ecliptic YDOT        -0.00234818 +/-    0.0000
Ecliptic ZDOT        -0.00002018 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.78150614 +/-    0.0011
Geocenter to KBO     42.77962554 +/-    0.0014
# Hcoef:  6.72

The following table shows the complete astrometric record for 99HS11. 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 (99HS11) followed by the observatory code and reference code for the source of the astrometry.

1999 04  17.20248  13 34 18.65   -07 00 48.9   22.2R 99HS11    695  Ca4929      
1999 04  17.28309  13 34 18.30   -07 00 46.9         99HS11    695  Ca4929      
1999 04  17.38056  13 34 17.84   -07 00 44.5         99HS11    695  Ca4929      
1999 05  05.90238  13 32 58.69   -06 53 17.8         99HS11    950  Ca4929      
1999 05  05.96308  13 32 58.47   -06 53 16.3         99HS11    950  Ca4929      
1999 05  06.01859  13 32 58.25   -06 53 14.7         99HS11    950  Ca4930      
2000 03  29.53373  13 40 22.06   -07 36 39.8   22.9R 99HS11    568  Cb1943      
2000 03  29.56239  13 40 21.94   -07 36 39.0   22.6R 99HS11    568  Cb1943      
2000 03  29.59068  13 40 21.85   -07 36 38.4   22.7R 99HS11    568  Cb1943      
2000 03  30.33561  13 40 18.75   -07 36 19.9   22.6R 99HS11    695  Cb1943      
2000 04  05.29860  13 39 53.36   -07 33 48.6   22.8R 99HS11    709  Cb1943      
2000 04  05.35155  13 39 53.24   -07 33 48.8   22.8R 99HS11    709  Cb1943      
2000 04  05.40449  13 39 53.03   -07 33 47.2   23.2R 99HS11    709  Cb1943      
2001 03  24.41495  13 45 30.68   -08 06 51.7   22.7R 99HS11    695  Cc7487      
2001 03  24.49065  13 45 30.37   -08 06 50.0         99HS11    695  Cc7487      
2001 03  25.20422  13 45 27.59   -08 06 32.0   22.0  99HS11    304  Ce8605      
2001 03  25.23089  13 45 27.48   -08 06 32.0         99HS11    304  Ce8605      
2001 05  22.34262  13 41 25.46   -07 43 59.9         99HS11    568  Cd2241      
2001 05  22.37538  13 41 25.34   -07 43 59.4         99HS11    568  Cd2241      
2004 05  26.12531  13 55 35.69   -09 06 14.7   22.8R 99HS11    304  Ck8632      
2004 05  26.12839  13 55 35.69   -09 06 14.8   22.9R 99HS11    304  Ck8632      
2004 05  26.13123  13 55 35.67   -09 06 14.5         99HS11    304  Ck8632      
2004 05  26.13359  13 55 35.67   -09 06 14.9         99HS11    304  Ck8632      
2004 05  26.13596  13 55 35.67   -09 06 15.0         99HS11    304  Ck8632      
2004 05  26.13833  13 55 35.65   -09 06 14.7         99HS11    304  Ck8632      
2004 05  26.15914  13 55 35.55   -09 06 14.5         99HS11    304  Ck8632      
2004 05  26.16222  13 55 35.54   -09 06 14.5         99HS11    304  Ck8632      
2006 05  26.219207 14 05 19.74   -10 01 04.5   23.7V 99HS11    645  C~1eMn      
2006 05  26.220036 14 05 19.74   -10 01 04.5   22.3V 99HS11    645  C~1eMn      
2006 05  26.222524 14 05 19.74   -10 01 04.5   24.6V 99HS11    645  C~1eMn      
2014 04  23.34703  14 47 18.28   -13 39 27.8         99HS11    W84  C~1TiX      
2014 04  24.36830  14 47 13.70   -13 39 06.5   24.3V 99HS11    W84  C~1TiX      
2014 04  25.38549  14 47 09.09   -13 38 45.3         99HS11    W84  C~1TiX      

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     0.35       0.00     0.12
  2   0.0002     -5.58     0.49      -0.04     0.13
  3   0.0005    -12.83     0.17      -0.30    -0.08
  4   0.0512  -1273.11    -0.42     -14.97    -0.35
  5   0.0514  -1276.70    -0.04     -14.77    -0.05
  6   0.0515  -1280.34    -0.03     -14.48     0.34
  7   0.9509   5820.32    -0.13     -38.97    -0.12
  8   0.9510   5818.37    -0.14     -38.87    -0.04
  9   0.9511   5816.90     0.30     -38.80     0.01
 10   0.9531   5767.20     0.14     -38.23    -0.14
 11   0.9695   5360.22    -1.62     -33.83    -0.11
 12   0.9696   5358.63     0.49     -34.66    -0.95
 13   0.9698   5355.14     0.70     -34.30    -0.60
 14   1.9362  10759.12    -0.11     -76.44     0.20
 15   1.9364  10754.20    -0.17     -76.50     0.05
 16   1.9384  10709.09    -0.08     -74.52     0.88
 17   1.9385  10707.56     0.12     -75.11     0.27
 18   2.0976   6859.15    -0.10    -108.60     0.17
 19   2.0977   6857.31    -0.10    -108.78     0.08
 20   5.1086  20469.52    -0.13    -213.03     0.41
 21   5.1086  20469.56     0.08    -213.13     0.32
 22   5.1086  20469.17    -0.14    -212.95     0.51
 23   5.1086  20469.31     0.13    -213.33     0.14
 24   5.1086  20469.35     0.30    -213.42     0.05
 25   5.1087  20468.96     0.05    -213.24     0.23
 26   5.1087  20467.49    -0.25    -213.58    -0.04
 27   5.1087  20467.35    -0.22    -213.63    -0.09
 28   7.1075  29852.51     0.06    -276.74    -0.47
 29   7.1075  29852.51     0.10    -276.74    -0.47
 30   7.1075  29852.51     0.25    -276.74    -0.46
 31  15.0175  71543.64     0.06    -486.37    -0.08
 32  15.0203  71465.15     0.13    -486.87     0.08
 33  15.0231  71386.24    -0.25    -487.61     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.

99HS11    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.847    43.862    43.832
ecceobj         0.017     0.017     0.017
incobj          2.601     2.601     2.601
qmin           42.733    42.751    42.702
qmax           45.764    45.793    45.741
amean          44.170    44.185    44.155
amin           43.830    43.853    43.816
amax           44.512    44.526    44.500
emean           0.015     0.015     0.015
emin            0.000     0.000     0.000
emax            0.028     0.029     0.028
imean           1.078     1.075     1.080
imin            0.486     0.488     0.485
imax            1.645     1.640     1.649
excite_mean     0.025     0.025     0.025
fracstop        1.000     1.000     1.000
cjmean          3.103     3.103     3.103

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       172.3     172.4     172.5
kozaiamp        180.0     180.0     180.0