Orbit Fit and Astrometric record for 11UC412

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: 11UC412   
# Created Mon Dec 11 02:37:46 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   1.47y
# First observation: 2011/08/29
#  Last observation: 2013/02/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.000128   0.025522   0.000007   0.000802   0.024831   0.000000
# Chi-squared of fit:     8.16 DOF:   46 RMS:  0.10
# Min/Max residuals:    -0.18    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.582996E-05  2.549685E-02  7.434928E-07  8.099608E-04  2.503083E-02  1.127809E-03
# Covariance matrix:
  3.4548E-13  1.2027E-13 -4.0686E-15  1.9365E-14  3.9933E-13  1.8661E-11
  1.2027E-13  5.5812E-13 -5.3139E-15  2.6539E-14  5.0248E-13  2.6885E-11
 -4.0686E-15 -5.3139E-15  1.3675E-13 -1.3213E-13 -8.0070E-15 -4.1163E-13
  1.9365E-14  2.6539E-14 -1.3213E-13  2.1938E-13  3.8810E-14  2.1074E-12
  3.9933E-13  5.0248E-13 -8.0070E-15  3.8810E-14  7.7519E-13  3.8134E-11
  1.8661E-11  2.6885E-11 -4.1163E-13  2.1074E-12  3.8134E-11  2.1867E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.547253   31.946145    0.838606    0.024742   -0.556838  2455803.024546
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:           16.41309 +/-     1.167
Argument of Peri:       34.21761 +/-     1.378
Long of Asc Node:      337.42999 +/-     0.016
Inclination:             3.13021 +/-     0.001
Eccentricity:         0.07658691 +/-    0.0007
Semi-Major Axis:     43.70767638 +/-    0.0050
Time of Perihelion: 2450988.5318 +/-     342.2
Perihelion:          40.36024051 +/-    0.0296
Aphelion:            47.05511224 +/-    0.0297
Period (y)              288.9647 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.78658496 +/-    0.0012
Ecliptic Y           20.70248543 +/-    0.0007
Ecliptic Z            1.77559465 +/-    0.0001
Ecliptic XDOT        -0.00137755 +/-    0.0000
Ecliptic YDOT         0.00243497 +/-    0.0000
Ecliptic ZDOT         0.00009405 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.51977459 +/-    0.0011
Geocenter to KBO     39.95072546 +/-    0.0014
# Hcoef:  7.82

The following table shows the complete astrometric record for 11UC412. 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 (11UC412) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.52378  01 55 27.817  +14 32 20.75  24.0r 11UC412   568  C~1C6P      
2011 08  29.56781  01 55 27.707  +14 32 20.28  23.8r 11UC412   568  C~1C6P      
2011 08  29.61470  01 55 27.585  +14 32 19.90  23.8r 11UC412   568  C~1C6P      
2011 09  05.55403  01 55 09.156  +14 31 06.55  23.8r 11UC412   568  C~1C6P      
2011 10  24.43329  01 51 43.279  +14 14 14.71  23.8r 11UC412   568  C~1C6P      
2011 10  24.47598  01 51 43.060  +14 14 13.57  23.8r 11UC412   568  C~1C6P      
2011 10  24.51878  01 51 42.850  +14 14 12.46  23.7r 11UC412   568  C~1C6P      
2011 10  30.55522  01 51 13.450  +14 11 33.16  23.5r 11UC412   568  C~1C6P      
2011 10  31.53810  01 51 08.698  +14 11 07.03  23.8r 11UC412   568  C~1C6P      
2011 11  24.26645  01 49 22.327  +14 01 00.73  23.8r 11UC412   568  C~1C6P      
2011 11  26.48700  01 49 13.620  +14 00 08.71  23.7r 11UC412   568  C~1C6P      
2012 01  25.26718  01 47 49.159  +13 49 13.70  24.2r 11UC412   568  C~1C6P      
2012 01  26.25193  01 47 50.605  +13 49 18.00  23.8r 11UC412   568  C~1C6P      
2012 01  27.30909  01 47 52.260  +13 49 23.32  23.7r 11UC412   568  C~1C6P      
2012 02  21.22817  01 49 01.210  +13 54 19.74  23.9r 11UC412   568  C~1C6P      
2012 08  17.56862  02 01 24.515  +15 06 17.35  23.9r 11UC412   568  C~1C6P      
2012 08  23.55059  02 01 15.205  +15 05 53.47  23.8r 11UC412   568  C~1C6P      
2012 08  23.55926  02 01 15.178  +15 05 53.43  23.8r 11UC412   568  C~1C6P      
2012 08  24.52636  02 01 13.388  +15 05 47.90  23.8r 11UC412   568  C~1C6P      
2012 08  24.58191  02 01 13.274  +15 05 47.59        11UC412   568  C~1C6P      
2012 10  17.41240  01 57 53.466  +14 50 34.20  24.0r 11UC412   568  C~1C6P      
2012 10  20.50922  01 57 38.364  +14 49 16.37  23.7r 11UC412   568  C~1C6P      
2013 01  14.36729  01 53 10.857  +14 22 18.18        11UC412   568  C~1C6P      
2013 02  02.24616  01 53 33.542  +14 23 10.91  23.3r 11UC412   568  C~1C6P      
2013 02  03.25183  01 53 35.735  +14 23 19.07        11UC412   568  C~1C6P      
2013 02  17.26542  01 54 15.828  +14 26 08.23  23.3r 11UC412   568  C~1C6P      

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    -0.05
  2   0.0001     -1.66     0.01       0.12    -0.12
  3   0.0002     -3.45    -0.06       0.38    -0.05
  4   0.0192   -279.83    -0.15      24.99    -0.06
  5   0.1531  -3436.42     0.24     126.74     0.09
  6   0.1532  -3439.81     0.14     126.79     0.11
  7   0.1533  -3443.05     0.18     126.83     0.11
  8   0.1698  -3899.41    -0.04     128.57     0.12
  9   0.1725  -3973.32    -0.10     128.52     0.03
 10   0.2375  -5636.14    -0.18     109.22    -0.01
 11   0.2436  -5773.17    -0.09     105.56    -0.08
 12   0.4072  -7156.85    -0.02     -69.32    -0.02
 13   0.4099  -7135.61     0.02     -72.81    -0.10
 14   0.4128  -7111.16     0.13     -76.43    -0.07
 15   0.4811  -6066.21    -0.13    -156.63     0.15
 16   0.9693   5558.88     0.04     123.51     0.05
 17   0.9857   5423.94     0.07     147.27    -0.06
 18   0.9857   5423.56    -0.07     147.36    -0.00
 19   0.9884   5397.29     0.04     151.05    -0.06
 20   0.9885   5395.63     0.01     151.32    -0.03
 21   1.1359   2361.67    -0.17     291.09    -0.05
 22   1.1444   2129.25    -0.06     293.91     0.12
 23   1.3794  -2074.52    -0.09     131.53    -0.12
 24   1.4311  -1747.33    -0.09      65.26     0.07
 25   1.4339  -1714.63     0.08      61.73    -0.02
 26   1.4723  -1109.78     0.22      16.15     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.

11UC412    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.800    43.820    43.782
ecceobj         0.079     0.081     0.077
incobj          3.129     3.129     3.129
qmin           39.347    39.252    39.337
qmax           47.853    47.955    47.808
amean          43.456    43.477    43.454
amin           43.108    43.130    43.094
amax           43.820    43.839    43.826
emean           0.074     0.076     0.073
emin            0.054     0.056     0.054
emax            0.092     0.094     0.091
imean           3.875     3.877     3.885
imin            2.857     2.860     2.878
imax            4.837     4.843     4.853
excite_mean     0.101     0.102     0.100
fracstop        1.000     1.000     1.000
cjmean          3.083     3.083     3.083

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       182.2     182.4     182.1
kozaiamp        180.0     179.9     180.0