Orbit Fit and Astrometric record for 11UH412

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: 11UH412   
# Created Sun Oct 22 01:37:58 2017
# Orbit generated from Bernstein formalism
# Fitting   22 observations of   22
# Arc:   1.43y
# First observation: 2011/08/30
#  Last observation: 2013/02/03
Preliminary a, adot, b, bdot, g, gdot:
  -0.000153   0.023558   0.000015   0.006126   0.024436   0.000000
# Chi-squared of fit:     6.70 DOF:   38 RMS:  0.10
# Min/Max residuals:    -0.24    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.467132E-05  2.338716E-02  5.135375E-06  6.135096E-03  2.449115E-02 -2.253360E-03
# Covariance matrix:
  3.2517E-13  9.8746E-14 -2.4610E-14  1.5672E-13  3.9812E-13  1.8384E-11
  9.8746E-14  5.7131E-13 -3.1078E-14  2.0499E-13  4.4603E-13  2.4233E-11
 -2.4610E-14 -3.1078E-14  1.2024E-13 -1.5508E-13 -5.2767E-14 -3.5398E-12
  1.5672E-13  2.0499E-13 -1.5508E-13  5.2171E-13  3.4496E-13  2.4611E-11
  3.9812E-13  4.4603E-13 -5.2767E-14  3.4496E-13  7.8217E-13  4.0699E-11
  1.8384E-11  2.4233E-11 -3.5398E-12  2.4611E-11  4.0699E-11  2.9413E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.201223   34.491084    0.853890    0.029742   -0.532388  2455803.971736
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          293.68555 +/-     0.061
Argument of Peri:       91.54017 +/-     0.231
Long of Asc Node:       21.48942 +/-     0.001
Inclination:            15.08590 +/-     0.001
Eccentricity:         0.11771594 +/-    0.0022
Semi-Major Axis:     42.87290343 +/-    0.0226
Time of Perihelion: 2474688.1720 +/-       9.0
Perihelion:          37.82607934 +/-    0.0983
Aphelion:            47.91972752 +/-    0.0995
Period (y)              280.7259 +/-      0.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.52741525 +/-    0.0012
Ecliptic Y           22.68501302 +/-    0.0008
Ecliptic Z            2.28035831 +/-    0.0001
Ecliptic XDOT        -0.00172252 +/-    0.0000
Ecliptic YDOT         0.00199614 +/-    0.0000
Ecliptic ZDOT         0.00067076 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.37574475 +/-    0.0011
Geocenter to KBO     40.83107085 +/-    0.0015
# Hcoef:  8.31

The following table shows the complete astrometric record for 11UH412. 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 (11UH412) followed by the observatory code and reference code for the source of the astrometry.

2011 08  30.47097  02 04 25.276  +16 01 46.95  24.2r 11UH412   568  C~1C6Q      
2011 08  30.52337  02 04 25.134  +16 01 46.80        11UH412   568  C~1C6Q      
2011 08  30.56976  02 04 25.023  +16 01 46.83  24.1r 11UH412   568  C~1C6Q      
2011 09  05.57158  02 04 09.352  +16 01 11.62  24.4r 11UH412   568  C~1C6Q      
2011 10  25.31577  02 00 39.592  +15 47 44.60        11UH412   568  C~1C6Q      
2011 10  25.36423  02 00 39.331  +15 47 43.65  24.3r 11UH412   568  C~1C6Q      
2011 10  25.41871  02 00 39.070  +15 47 42.37  24.3r 11UH412   568  C~1C6Q      
2011 10  25.47315  02 00 38.794  +15 47 41.15  24.4r 11UH412   568  C~1C6Q      
2011 10  26.26973  02 00 34.838  +15 47 23.35  24.3r 11UH412   568  C~1C6Q      
2011 10  26.32241  02 00 34.582  +15 47 22.09  24.1r 11UH412   568  C~1C6Q      
2011 10  26.36558  02 00 34.367  +15 47 21.12  24.2r 11UH412   568  C~1C6Q      
2011 10  31.30918  02 00 09.848  +15 45 28.68  24.1r 11UH412   568  C~1C6Q      
2011 10  31.37121  02 00 09.521  +15 45 27.20  24.4r 11UH412   568  C~1C6Q      
2011 11  24.30982  01 58 18.195  +15 36 26.68  24.1r 11UH412   568  C~1C6Q      
2011 12  01.32447  01 57 50.136  +15 34 02.45  24.4r 11UH412   568  C~1C6Q      
2012 01  26.31723  01 56 26.907  +15 25 41.91        11UH412   568  C~1C6Q      
2012 01  27.25145  01 56 28.036  +15 25 46.41  24.8r 11UH412   568  C~1C6Q      
2012 08  22.44933  02 09 26.745  +16 49 11.34        11UH412   568  C~1C6Q      
2012 10  17.40387  02 06 03.937  +16 38 22.75  24.4r 11UH412   568  C~1C6Q      
2012 10  20.50070  02 05 48.602  +16 37 17.44  23.8r 11UH412   568  C~1C6Q      
2013 01  14.33578  02 01 00.866  +16 12 49.77  24.6r 11UH412   568  C~1C6Q      
2013 02  03.26131  02 01 19.088  +16 13 41.74  24.5r 11UH412   568  C~1C6Q      

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     0.09       0.00    -0.24
  2   0.0001     -1.98    -0.08       0.56    -0.11
  3   0.0003     -3.47     0.04       1.13     0.10
  4   0.0167   -227.85    -0.09      45.14    -0.19
  5   0.1529  -3347.18     0.10     326.27    -0.12
  6   0.1530  -3351.04    -0.08     326.68     0.09
  7   0.1532  -3355.02     0.09     326.78    -0.04
  8   0.1533  -3359.18     0.08     327.01    -0.03
  9   0.1555  -3418.93    -0.07     330.03     0.17
 10   0.1557  -3422.84     0.02     330.12     0.04
 11   0.1558  -3426.08     0.06     330.29     0.02
 12   0.1693  -3797.18    -0.01     347.13     0.09
 13   0.1695  -3802.13    -0.24     347.37     0.11
 14   0.2350  -5498.40    -0.01     398.23    -0.03
 15   0.2542  -5928.98     0.07     404.21    -0.01
 16   0.4075  -7232.41    -0.04     355.31     0.17
 17   0.4101  -7215.52     0.07     353.82     0.16
 18   0.9801   5044.93     0.07    1209.97    -0.10
 19   1.1333   2082.54    -0.11    1581.83    -0.05
 20   1.1418   1853.03     0.07    1595.18    -0.03
 21   1.3768  -2539.62    -0.07    1633.20     0.02
 22   1.4313  -2275.30     0.05    1591.46    -0.01

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.

11UH412    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        42.961    43.021    42.905
ecceobj         0.117     0.123     0.111
incobj         15.070    15.069    15.070
qmin           36.897    36.678    37.070
qmax           48.669    48.999    48.403
amean          42.654    42.715    42.602
amin           42.303    42.353    42.255
amax           43.038    43.106    42.981
emean           0.114     0.120     0.109
emin            0.098     0.104     0.093
emax            0.132     0.138     0.127
imean          14.626    14.612    14.649
imin           13.793    13.792    13.804
imax           15.345    15.335    15.343
excite_mean     0.277     0.280     0.276
fracstop        1.000     1.000     1.000
cjmean          2.993     2.993     2.994

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       183.0     184.7     181.1
kozaiamp        180.0     180.0     180.0