Orbit Fit and Astrometric record for 11HO60

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: 11HO60    
# Created Wed Dec 13 02:37:41 2017
# Orbit generated from Bernstein formalism
# Fitting   17 observations of   17
# Arc:   2.11y
# First observation: 2011/04/26
#  Last observation: 2013/06/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000001   0.035689   0.000003  -0.008494   0.027737   0.000000
# Chi-squared of fit:     8.88 DOF:   28 RMS:  0.13
# Min/Max residuals:    -0.35    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.983720E-05  3.567812E-02 -5.030617E-06 -8.467910E-03  2.791795E-02 -1.638938E-03
# Covariance matrix:
  3.0731E-13  1.7829E-12  5.1920E-15 -5.1870E-13  7.6672E-13  2.9532E-11
  1.7829E-12  5.6465E-10  4.2776E-12 -1.5996E-10  1.3975E-10  9.1121E-09
  5.1920E-15  4.2776E-12  2.5446E-13 -1.3205E-12  1.0248E-12  6.9151E-11
 -5.1870E-13 -1.5996E-10 -1.3205E-12  4.5411E-11 -3.9536E-11 -2.5820E-09
  7.6672E-13  1.3975E-10  1.0248E-12 -3.9536E-11  3.5713E-11  2.2521E-09
  2.9532E-11  9.1121E-09  6.9151E-11 -2.5820E-09  2.2521E-09  1.4708E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -18.367650 -134.333770    0.183528   -0.312777   -0.941998  2455677.551656
# Heliocentric elements and errors
Epoch:              2455670.5000  =  2011/04/19
Mean Anomaly:          358.44505 +/-     0.307
Argument of Peri:      242.12609 +/-     1.597
Long of Asc Node:      353.30209 +/-     0.013
Inclination:            22.24674 +/-     0.003
Eccentricity:         0.60663364 +/-    0.0010
Semi-Major Axis:     93.11328270 +/-    0.1163
Time of Perihelion: 2457088.0256 +/-     280.2
Perihelion:          36.62763272 +/-    0.1004
Aphelion:           149.59893269 +/-    0.2071
Period (y)              898.5157 +/-      1.68
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -24.57689602 +/-    0.0051
Ecliptic Y          -24.89773034 +/-    0.0052
Ecliptic Z          -11.28729863 +/-    0.0024
Ecliptic XDOT         0.00279028 +/-    0.0000
Ecliptic YDOT        -0.00214291 +/-    0.0000
Ecliptic ZDOT        -0.00073744 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.76035779 +/-    0.0050
Geocenter to KBO     35.81924979 +/-    0.0077
# Hcoef:  6.10

The following table shows the complete astrometric record for 11HO60. 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 (11HO60) followed by the observatory code and reference code for the source of the astrometry.

2011 04  26.05089  14 27 29.484  -33 59 46.32  21.4R 11HO60    809  C~0VZR      
2011 04  26.13745  14 27 28.956  -33 59 44.95  21.4R 11HO60    809  C~0VZR      
2011 04  26.24326  14 27 28.257  -33 59 43.44  21.5R 11HO60    809  C~0VZR      
2011 04  28.03782  14 27 17.380  -33 59 14.24  21.5R 11HO60    809  C~0VZR      
2011 04  28.12266  14 27 16.860  -33 59 13.20  21.6R 11HO60    809  C~0VZR      
2011 06  28.11617  14 22 18.68   -33 30 47.2         11HO60    807  C~0evM      
2011 06  28.16348  14 22 18.54   -33 30 45.9         11HO60    807  C~0evM      
2013 05  31.552363 14 41 21.807  -35 59 38.03  21.4R 11HO60    413  C~0sPd      
2013 05  31.569025 14 41 21.718  -35 59 37.69  21.6R 11HO60    413  C~0sPd      
2013 05  31.586383 14 41 21.620  -35 59 37.21  21.5R 11HO60    413  C~0sPd      
2013 06  04.001671 14 41 03.592  -35 57 54.79  21.6R 11HO60    W86  C~0sPd      
2013 06  04.004631 14 41 03.575  -35 57 54.62  21.4R 11HO60    W86  C~0sPd      
2013 06  04.007571 14 41 03.549  -35 57 54.64  21.3R 11HO60    W86  C~0sPd      
2013 06  04.010512 14 41 03.531  -35 57 54.68  21.0R 11HO60    W86  C~0sPd      
2013 06  04.047683 14 41 03.339  -35 57 53.26  21.1R 11HO60    W86  C~0sPd      
2013 06  04.050625 14 41 03.328  -35 57 53.24  21.4R 11HO60    W86  C~0sPd      
2013 06  04.053568 14 41 03.326  -35 57 53.21  21.5R 11HO60    W86  C~0sPd      

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     0.05
  2   0.0002     -6.65     0.12      -0.91     0.14
  3   0.0005    -15.34    -0.35      -2.40    -0.16
  4   0.0054   -152.57     0.01     -20.29     0.27
  5   0.0057   -159.01     0.17     -21.48    -0.02
  6   0.1727  -4237.49     0.05     312.18    -0.02
  7   0.1728  -4239.58    -0.08     312.79    -0.29
  8   2.0986  12000.87     0.04   -3556.77     0.07
  9   2.0986  11999.73     0.12   -3556.78    -0.07
 10   2.0987  11998.45     0.10   -3556.68    -0.11
 11   2.1080  11758.03     0.03   -3525.14     0.02
 12   2.1080  11757.78    -0.01   -3525.04     0.09
 13   2.1080  11757.49    -0.10   -3525.15    -0.05
 14   2.1080  11757.29    -0.09   -3525.26    -0.18
 15   2.1081  11754.63    -0.14   -3524.61     0.12
 16   2.1081  11754.50    -0.06   -3524.63     0.07
 17   2.1082  11754.46     0.11   -3524.61     0.06

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.

11HO60    quality flag:2

Type:     11:2EEEEEE  SCATNEAR11:2EEEEEE

axisobj        92.287    92.980    92.077
ecceobj         0.603     0.606     0.603
incobj         22.263    22.274    22.259
qmin           35.816    35.589    35.756
qmax          155.548   157.124   156.234
amean          93.816    94.445    93.816
amin           92.287    92.887    92.077
amax           96.257    96.842    96.567
emean           0.603     0.609     0.607
emin            0.589     0.594     0.596
emax            0.618     0.623     0.620
imean          23.711    23.230    23.212
imin           22.773    22.445    22.774
imax           24.540    24.312    23.483
excite_mean     0.725     0.725     0.724
fracstop        1.000     1.000     1.000
cjmean          2.899     2.901     2.898

libcent 0       180.0    -180.0     181.5
libamp  0        37.0    -180.0     104.6
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       250.4     191.2     268.5
kozaiamp          8.6     180.0      25.8