Orbit Fit and Astrometric record for 14UH225

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: 14UH225   
# Created Fri Dec 15 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   43 observations of   43
# Arc:   2.33y
# First observation: 2013/08/09
#  Last observation: 2015/12/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000142   0.021575   0.000048  -0.012255   0.025207   0.000000
# Chi-squared of fit:    11.22 DOF:   80 RMS:  0.09
# Min/Max residuals:    -0.61    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.360512E-05  2.136067E-02 -8.272980E-06 -1.207599E-02  2.517779E-02  4.508731E-04
# Covariance matrix:
  1.5649E-13 -7.1178E-14 -1.5885E-15  2.5110E-15  7.0603E-14 -1.0346E-13
 -7.1178E-14  2.2908E-13  5.0301E-14 -1.6818E-13  8.7402E-14  6.6028E-12
 -1.5885E-15  5.0301E-14  1.0235E-13 -1.1905E-13  2.9982E-14  2.1873E-12
  2.5110E-15 -1.6818E-13 -1.1905E-13  2.6352E-13 -1.0323E-13 -7.3226E-12
  7.0603E-14  8.7402E-14  2.9982E-14 -1.0323E-13  1.3038E-13  4.0477E-12
 -1.0346E-13  6.6028E-12  2.1873E-12 -7.3226E-12  4.0477E-12  2.8747E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.867642   27.224053    0.957027    0.017037   -0.339473  2456513.999868
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          187.46306 +/-     1.078
Argument of Peri:      347.24207 +/-     1.079
Long of Asc Node:      210.89083 +/-     0.000
Inclination:            29.50402 +/-     0.001
Eccentricity:         0.03481469 +/-    0.0001
Semi-Major Axis:     38.73172704 +/-    0.0021
Time of Perihelion: 2498707.1833 +/-     263.6
Perihelion:          37.38329415 +/-    0.0054
Aphelion:            40.08015994 +/-    0.0055
Period (y)              241.0508 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.01331712 +/-    0.0005
Ecliptic Y           17.45435778 +/-    0.0003
Ecliptic Z            1.98673774 +/-    0.0000
Ecliptic XDOT        -0.00096686 +/-    0.0000
Ecliptic YDOT         0.00211704 +/-    0.0000
Ecliptic ZDOT        -0.00130891 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.06944899 +/-    0.0005
Geocenter to KBO     39.71754719 +/-    0.0006
# Hcoef:  7.49

The following table shows the complete astrometric record for 14UH225. 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 (14UH225) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.49909  01 36 50.098  +13 09 30.33  23.3r 14UH225   568  C~2Gdq      
2013 08  09.54251  01 36 50.056  +13 09 29.87  23.7r 14UH225   568  C~2Gdq      
2013 09  02.41721  01 35 59.357  +13 03 20.73  23.4r 14UH225   568  C~2Gdq      
2013 09  02.46053  01 35 59.209  +13 03 19.93  23.3r 14UH225   568  C~2Gdq      
2013 09  03.43655  01 35 56.182  +13 02 58.70  23.6r 14UH225   568  C~2Gdq      
2013 09  03.48318  01 35 56.027  +13 02 57.75  23.3r 14UH225   568  C~2Gdq      
2013 10  08.49603  01 33 32.319  +12 46 12.01  23.3r 14UH225   568  C~2Gdq      
2013 10  30.41166  01 31 47.063  +12 33 20.72  22.9r 14UH225   568  C~2Gdq      
2013 10  30.49029  01 31 46.686  +12 33 18.48  23.5r 14UH225   568  C~2Gdq      
2013 11  01.49022  01 31 37.299  +12 32 07.38  23.4r 14UH225   568  C~2Gdq      
2013 11  28.24590  01 29 47.677  +12 17 17.41  23.3r 14UH225   568  C~2Gdq      
2013 11  28.26487  01 29 47.610  +12 17 16.77  23.5r 14UH225   568  C~2Gdq      
2013 12  04.38623  01 29 28.456  +12 14 20.82  23.4r 14UH225   568  C~2Gdq      
2013 12  29.24699  01 28 42.908  +12 05 17.64  23.2r 14UH225   568  C~2Gdq      
2013 12  29.25183  01 28 42.903  +12 05 17.49  23.3r 14UH225   568  C~2Gdq      
2013 12  30.33812  01 28 42.201  +12 05 01.08  23.4r 14UH225   568  C~2Gdq      
2013 12  30.34280  01 28 42.206  +12 05 00.96  23.5r 14UH225   568  C~2Gdq      
2014 01  02.23377  01 28 40.938  +12 04 20.16  23.5r 14UH225   568  C~2Gdq      
2014 01  02.28087  01 28 40.925  +12 04 19.46  23.8r 14UH225   568  C~2Gdq      
2014 01  02.36222  01 28 40.898  +12 04 18.31  23.5r 14UH225   568  C~2Gdq      
2014 01  03.24172  01 28 40.689  +12 04 06.98  22.6r 14UH225   568  C~2Gdq      
2014 07  26.51389  01 42 37.234  +12 58 36.70  23.4r 14UH225   568  C~2Gdq      
2014 07  26.55715  01 42 37.251  +12 58 36.59  23.6r 14UH225   568  C~2Gdq      
2014 07  26.60045  01 42 37.259  +12 58 36.51  23.5r 14UH225   568  C~2Gdq      
2014 08  24.45000  01 42 09.008  +12 54 03.41  23.5r 14UH225   568  C~2Gdq      
2014 08  24.52394  01 42 08.840  +12 54 02.16  23.7r 14UH225   568  C~2Gdq      
2014 08  30.42828  01 41 54.135  +12 52 12.98  23.4r 14UH225   568  C~2Gdq      
2014 08  30.53659  01 41 53.829  +12 52 10.87  23.3r 14UH225   568  C~2Gdq      
2014 09  18.45522  01 40 49.756  +12 44 34.19  23.4r 14UH225   568  C~2Gdq      
2014 09  18.49795  01 40 49.577  +12 44 32.97  23.5r 14UH225   568  C~2Gdq      
2014 09  23.49621  01 40 29.059  +12 42 08.79  23.4r 14UH225   568  C~2Gdq      
2014 10  22.27847  01 38 15.011  +12 26 16.52  23.3r 14UH225   568  C~2Gdq      
2014 10  22.32309  01 38 14.798  +12 26 14.94  23.4r 14UH225   568  C~2Gdq      
2014 10  22.36779  01 38 14.574  +12 26 13.40  23.2r 14UH225   568  C~2Gdq      
2014 10  23.46129  01 38 09.261  +12 25 34.88  23.3r 14UH225   568  C~2Gdq      
2014 10  25.47724  01 37 59.511  +12 24 23.81  23.3r 14UH225   568  C~2Gdq      
2014 11  20.20843  01 36 03.908  +12 09 44.86  23.4r 14UH225   568  C~2Gdq      
2014 11  20.34891  01 36 03.337  +12 09 40.27  23.4r 14UH225   568  C~2Gdq      
2015 10  10.50942  01 45 00.076  +12 20 34.72  23.4r 14UH225   568  C~2Gdq      
2015 10  10.57597  01 44 59.755  +12 20 32.45  23.6r 14UH225   568  C~2Gdq      
2015 10  15.48343  01 44 36.233  +12 17 46.06        14UH225   568  C~2Gdq      
2015 10  15.54980  01 44 35.914  +12 17 43.77        14UH225   568  C~2Gdq      
2015 12  07.44507  01 40 49.329  +11 49 14.65  23.6w 14UH225   568  C~2Gdq      

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    -0.04       0.00     0.14
  2   0.0001     -0.74     0.06      -0.21     0.03
  3   0.0655   -824.94     0.09     -74.74    -0.07
  4   0.0656   -827.25    -0.03     -74.69     0.10
  5   0.0683   -876.18    -0.01     -78.36     0.04
  6   0.0684   -878.63    -0.05     -78.42     0.13
  7   0.1643  -3202.18    -0.00    -247.45     0.14
  8   0.2243  -4918.87     0.00    -399.57    -0.61
  9   0.2245  -4924.83     0.20    -399.62    -0.08
 10   0.2300  -5078.89    -0.12    -415.18    -0.02
 11   0.3032  -6901.35     0.03    -650.42     0.03
 12   0.3033  -6902.50    -0.02    -650.65    -0.03
 13   0.3200  -7228.80    -0.09    -710.40    -0.08
 14   0.3881  -8051.45    -0.02    -968.04     0.02
 15   0.3881  -8051.58    -0.06    -968.15    -0.05
 16   0.3911  -8067.25    -0.07    -979.59     0.11
 17   0.3911  -8067.22     0.02    -979.73     0.02
 18   0.3990  -8099.67    -0.02   -1010.76     0.02
 19   0.3991  -8100.10     0.02   -1011.34    -0.07
 20   0.3994  -8100.90     0.03   -1012.26    -0.13
 21   0.4018  -8107.96    -0.02   -1021.66    -0.04
 22   0.9610   4496.20    -0.02   -2439.11     0.06
 23   0.9611   4496.39     0.02   -2439.30    -0.01
 24   0.9613   4496.47    -0.03   -2439.41     0.00
 25   1.0402   4012.83    -0.04   -2546.46     0.07
 26   1.0405   4010.08     0.02   -2546.74     0.04
 27   1.0566   3770.11    -0.01   -2571.56     0.05
 28   1.0569   3765.18    -0.03   -2571.93     0.09
 29   1.1087   2726.17     0.05   -2661.51     0.01
 30   1.1088   2723.29    -0.03   -2661.71     0.01
 31   1.1225   2391.23    -0.04   -2688.21     0.03
 32   1.2013    216.99     0.00   -2867.84     0.08
 33   1.2014    213.51     0.08   -2868.18     0.03
 34   1.2016    209.90     0.04   -2868.43     0.07
 35   1.2046    123.39    -0.02   -2876.16     0.05
 36   1.2101    -35.49    -0.01   -2890.69    -0.01
 37   1.2805  -1933.60     0.14   -3094.60     0.10
 38   1.2809  -1943.07     0.06   -3095.83    -0.00
 39   2.1684   5636.15    -0.03   -5319.12    -0.05
 40   2.1686   5630.95    -0.03   -5319.57    -0.07
 41   2.1820   5249.20    -0.03   -5352.21    -0.01
 42   2.1822   5244.01     0.06   -5352.68    -0.05
 43   2.3270   1526.30    -0.06   -5758.04    -0.07

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.

14UH225    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        38.888    38.896    38.881
ecceobj         0.030     0.030     0.031
incobj         29.442    29.442    29.443
qmin           36.608    36.592    36.548
qmax           41.000    40.998    40.982
amean          38.701    38.701    38.690
amin           38.429    38.423    38.415
amax           39.000    38.993    38.991
emean           0.040     0.040     0.041
emin            0.029     0.029     0.030
emax            0.051     0.051     0.052
imean          30.255    30.252    30.254
imin           29.813    29.810    29.810
imax           30.660    30.654    30.657
excite_mean     0.505     0.505     0.505
fracstop        1.000     1.000     1.000
cjmean          2.734     2.734     2.734

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       170.5     170.4     170.7
kozaiamp        179.9     180.0     180.0