Orbit Fit and Astrometric record for 11UP412

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: 11UP412   
# Created Tue Dec 12 02:37:46 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:   1.44y
# First observation: 2011/08/29
#  Last observation: 2013/02/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000113   0.030429   0.000037   0.010630   0.027042   0.000000
# Chi-squared of fit:     7.36 DOF:   40 RMS:  0.10
# Min/Max residuals:    -0.23    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.686303E-05  3.029411E-02  6.437426E-06  1.070724E-02  2.711502E-02 -1.971619E-03
# Covariance matrix:
  3.3875E-13  2.1673E-13 -3.7872E-14  2.6907E-13  4.2585E-13  1.7895E-11
  2.1673E-13  8.9321E-13 -7.9909E-14  5.7723E-13  7.8768E-13  3.8584E-11
 -3.7872E-14 -7.9909E-14  1.5343E-13 -2.0058E-13 -8.8530E-14 -4.7475E-12
  2.6907E-13  5.7723E-13 -2.0058E-13  7.2753E-13  6.3337E-13  3.4687E-11
  4.2585E-13  7.8768E-13 -8.8530E-14  6.3337E-13  9.4423E-13  4.2213E-11
  1.7895E-11  3.8584E-11 -4.7475E-12  3.4687E-11  4.2213E-11  2.3266E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.662544   31.701359    0.836217    0.026029   -0.560361  2455803.024546
# Heliocentric elements and errors
Epoch:              2455800.5000  =  2011/08/27
Mean Anomaly:          351.68174 +/-     0.137
Argument of Peri:       26.10724 +/-     0.313
Long of Asc Node:       23.06494 +/-     0.000
Inclination:            19.68536 +/-     0.001
Eccentricity:         0.35069278 +/-    0.0006
Semi-Major Axis:     56.92416751 +/-    0.0277
Time of Perihelion: 2459425.2110 +/-      59.9
Perihelion:          36.96127309 +/-    0.0383
Aphelion:            76.88706193 +/-    0.0504
Period (y)              429.4902 +/-      0.31
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.26357463 +/-    0.0011
Ecliptic Y           18.94373191 +/-    0.0007
Ecliptic Z            1.71345831 +/-    0.0001
Ecliptic XDOT        -0.00182247 +/-    0.0000
Ecliptic YDOT         0.00247698 +/-    0.0000
Ecliptic ZDOT         0.00107077 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.45315963 +/-    0.0010
Geocenter to KBO     36.87992232 +/-    0.0013
# Hcoef:  8.26

The following table shows the complete astrometric record for 11UP412. 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 (11UP412) followed by the observatory code and reference code for the source of the astrometry.

2011 08  29.52378  01 54 21.019  +14 33 42.28  23.9r 11UP412   568  C~1CKy      
2011 08  29.56781  01 54 20.887  +14 33 42.12  24.0r 11UP412   568  C~1CKy      
2011 08  29.61470  01 54 20.750  +14 33 41.96  23.8r 11UP412   568  C~1CKy      
2011 09  05.55403  01 54 00.378  +14 33 01.91  23.9r 11UP412   568  C~1CKy      
2011 10  24.43329  01 50 14.624  +14 19 23.76  23.9r 11UP412   568  C~1CKy      
2011 10  24.47598  01 50 14.391  +14 19 22.87  23.7r 11UP412   568  C~1CKy      
2011 10  24.51878  01 50 14.160  +14 19 21.90  23.7r 11UP412   568  C~1CKy      
2011 10  29.33738  01 49 48.531  +14 17 31.74  22.9r 11UP412   568  C~1CKy      
2011 10  30.55522  01 49 42.060  +14 17 03.54  23.9r 11UP412   568  C~1CKy      
2011 10  31.53810  01 49 36.882  +14 16 40.66  24.0r 11UP412   568  C~1CKy      
2011 11  26.48700  01 47 31.426  +14 07 11.42  24.0r 11UP412   568  C~1CKy      
2012 01  26.25193  01 46 01.469  +14 00 55.19  24.0r 11UP412   568  C~1CKy      
2012 01  27.30909  01 46 03.255  +14 01 06.61  23.9r 11UP412   568  C~1CKy      
2012 08  17.56862  02 00 36.870  +15 44 21.75  24.3r 11UP412   568  C~1CKy      
2012 08  24.52636  02 00 24.394  +15 44 36.28  23.8r 11UP412   568  C~1CKy      
2012 10  17.37393  01 56 44.090  +15 33 46.30  23.7r 11UP412   568  C~1CKy      
2012 10  17.41666  01 56 43.861  +15 33 45.42        11UP412   568  C~1CKy      
2012 10  20.46885  01 56 27.485  +15 32 39.61  23.8r 11UP412   568  C~1CKy      
2012 10  20.51348  01 56 27.248  +15 32 38.58  23.6r 11UP412   568  C~1CKy      
2013 02  02.26555  01 51 59.262  +15 12 42.49  24.1r 11UP412   568  C~1CKy      
2013 02  03.26646  01 52 01.625  +15 12 55.77  24.3r 11UP412   568  C~1CKy      
2013 02  06.28044  01 52 09.393  +15 13 39.14  23.8r 11UP412   568  C~1CKy      
2013 02  06.28578  01 52 09.400  +15 13 39.34  23.9r 11UP412   568  C~1CKy      

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     0.17       0.00    -0.04
  2   0.0001     -1.85     0.01       0.52     0.03
  3   0.0002     -3.77    -0.10       1.07     0.10
  4   0.0192   -294.86    -0.11      67.02    -0.23
  5   0.1531  -3652.76    -0.04     455.38    -0.12
  6   0.1532  -3656.25    -0.02     455.75    -0.04
  7   0.1533  -3659.73    -0.01     456.03    -0.03
  8   0.1665  -4047.25     0.14     484.91     0.28
  9   0.1698  -4145.24     0.03     491.88     0.22
 10   0.1725  -4223.77     0.07     497.16    -0.00
 11   0.2436  -6132.53    -0.01     613.81    -0.17
 12   0.4099  -7490.94    -0.03     730.23    -0.02
 13   0.4128  -7462.55    -0.10     731.59     0.10
 14   0.9693   6575.68    -0.02    2093.06    -0.05
 15   0.9884   6411.32    -0.06    2168.53    -0.13
 16   1.1358   3198.56     0.09    2656.55    -0.02
 17   1.1359   3195.15     0.14    2656.88    -0.01
 18   1.1443   2950.31    -0.13    2677.33     0.07
 19   1.1444   2946.74    -0.05    2677.55    -0.02
 20   1.4312  -1103.23     0.04    2912.70    -0.12
 21   1.4339  -1066.54    -0.06    2913.09    -0.01
 22   1.4422   -946.02     0.06    2914.10     0.03
 23   1.4422   -945.86     0.00    2914.25     0.18

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.

11UP412    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        57.086    57.144    57.031
ecceobj         0.352     0.354     0.351
incobj         19.668    19.668    19.668
qmin           35.770    35.633    35.826
qmax           77.877    78.370    77.763
amean          56.391    56.427    56.348
amin           55.803    55.836    55.761
amax           57.164    57.279    57.115
emean           0.346     0.346     0.345
emin            0.328     0.327     0.328
emax            0.364     0.368     0.363
imean          19.488    19.558    19.466
imin           18.692    18.579    18.696
imax           20.255    20.339    20.218
excite_mean     0.480     0.481     0.480
fracstop        1.000     1.000     1.000
cjmean          2.955     2.954     2.955

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       176.2     175.5     176.0
kozaiamp        179.9     179.9     180.0