Orbit Fit and Astrometric record for 14UB228

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: 14UB228   
# Created Fri Dec  3 02:12:47 2021
# Orbit generated from Bernstein formalism
# Fitting     41 observations of     41
# Arc:   4.06y
# First observation: 2013/08/08
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000019   0.031112   0.000008   0.003538   0.026707   0.000000
# Chi-squared of fit:    10.74 DOF:     76 RMS:  0.09
# Min/Max residuals:    -0.37    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.707684E-05  3.079068E-02  2.006717E-06  3.515689E-03  2.642876E-02  5.710838E-04
# Covariance matrix:
  1.2297E-13 -2.6900E-14 -2.0342E-15  4.4592E-16  7.2667E-14  1.1734E-14
 -2.6900E-14  1.7163E-13 -9.6089E-15  1.8177E-14  1.0232E-13  1.4239E-12
 -2.0342E-15 -9.6089E-15  6.8556E-14 -3.6077E-14 -9.0979E-15 -9.9728E-14
  4.4592E-16  1.8177E-14 -3.6077E-14  3.9500E-14  1.3062E-14  1.9312E-13
  7.2667E-14  1.0232E-13 -9.0979E-15  1.3062E-14  1.5907E-13  9.9497E-13
  1.1734E-14  1.4239E-12 -9.9728E-14  1.9312E-13  9.9497E-13  1.5159E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.462083   26.015244    0.955433    0.020860   -0.344231  2456513.043958
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          359.09567 +/-     0.014
Argument of Peri:       29.42601 +/-     0.029
Long of Asc Node:      357.25720 +/-     0.001
Inclination:             7.43831 +/-     0.000
Eccentricity:         0.33246569 +/-    0.0000
Semi-Major Axis:     57.20973307 +/-    0.0047
Time of Perihelion: 2456907.5325 +/-       6.0
Perihelion:          38.18945983 +/-    0.0041
Aphelion:            76.23000632 +/-    0.0068
Period (y)              432.7261 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.67031897 +/-    0.0005
Ecliptic Y           15.86137605 +/-    0.0002
Ecliptic Z            2.28504829 +/-    0.0000
Ecliptic XDOT        -0.00137196 +/-    0.0000
Ecliptic YDOT         0.00288190 +/-    0.0000
Ecliptic ZDOT         0.00036725 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.19470793 +/-    0.0005
Geocenter to KBO     37.83757335 +/-    0.0006
# Hcoef:  7.86

The following table shows the complete astrometric record for 14UB228. 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 (14UB228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.54318  01 31 19.579  +13 16 15.28        14UB228   568  C~2SDe      
2013 08  08.54782  01 31 19.537  +13 16 14.88  20.6r 14UB228   568  C~2SDe      
2013 08  08.59158  01 31 19.505  +13 16 15.32  21.1r 14UB228   568  C~2SDe      
2013 09  01.51793  01 30 26.824  +13 14 04.89  23.9r 14UB228   568  C~2SDe      
2013 09  01.55676  01 30 26.691  +13 14 04.52  23.8r 14UB228   568  C~2SDe      
2013 09  02.49944  01 30 23.654  +13 13 53.07  23.8r 14UB228   568  C~2SDe      
2013 09  02.55084  01 30 23.483  +13 13 52.49  23.7r 14UB228   568  C~2SDe      
2013 09  29.51904  01 28 33.264  +13 05 40.12  23.9r 14UB228   568  C~2SDe      
2013 10  03.49553  01 28 14.231  +13 04 05.34  23.6r 14UB228   568  C~2SDe      
2013 10  04.59224  01 28 08.895  +13 03 38.57  23.5r 14UB228   568  C~2SDe      
2013 10  09.39306  01 27 45.305  +13 01 37.53  23.9r 14UB228   568  C~2SDe      
2013 10  29.45663  01 26 05.579  +12 52 36.23  23.5r 14UB228   568  C~2SDe      
2013 10  30.36893  01 26 01.156  +12 52 10.90  23.5r 14UB228   568  C~2SDe      
2013 10  31.35976  01 25 56.371  +12 51 43.84  24.0r 14UB228   568  C~2SDe      
2013 11  01.30558  01 25 51.840  +12 51 17.71  23.6r 14UB228   568  C~2SDe      
2013 11  01.34467  01 25 51.649  +12 51 16.70  23.9r 14UB228   568  C~2SDe      
2013 11  01.43401  01 25 51.210  +12 51 14.33  23.9r 14UB228   568  C~2SDe      
2013 12  04.34299  01 23 40.957  +12 37 53.82  23.6r 14UB228   568  C~2SDe      
2013 12  29.29176  01 22 58.222  +12 32 19.27  23.9r 14UB228   568  C~2SDe      
2014 08  24.44224  01 37 20.611  +14 05 35.26  23.8r 14UB228   568  C~2SDe      
2014 08  24.51617  01 37 20.419  +14 05 34.95  23.8r 14UB228   568  C~2SDe      
2014 08  30.42052  01 37 04.767  +14 04 49.04  23.8r 14UB228   568  C~2SDe      
2014 08  30.52883  01 37 04.443  +14 04 48.10  24.0r 14UB228   568  C~2SDe      
2014 09  18.44742  01 35 56.755  +14 00 23.82  23.7r 14UB228   568  C~2SDe      
2014 09  18.49018  01 35 56.573  +14 00 23.05  23.7r 14UB228   568  C~2SDe      
2014 09  23.48837  01 35 35.012  +13 58 46.86  23.8r 14UB228   568  C~2SDe      
2014 10  22.26990  01 33 15.126  +13 47 08.06  23.7r 14UB228   568  C~2SDe      
2014 10  22.31521  01 33 14.894  +13 47 06.81  23.7r 14UB228   568  C~2SDe      
2014 10  22.36003  01 33 14.662  +13 47 05.71  23.7r 14UB228   568  C~2SDe      
2014 10  23.45117  01 33 09.167  +13 46 36.03  23.7r 14UB228   568  C~2SDe      
2014 10  25.46714  01 32 59.067  +13 45 41.45  23.5r 14UB228   568  C~2SDe      
2014 11  19.22297  01 31 04.282  +13 34 41.68  24.0r 14UB228   568  C~2SDe      
2014 11  19.35606  01 31 03.736  +13 34 38.44  24.1r 14UB228   568  C~2SDe      
2014 11  21.36935  01 30 55.616  +13 33 48.65  23.4r 14UB228   568  C~2SDe      
2015 01  28.23984  01 29 48.196  +13 23 10.33  24.0r 14UB228   568  C~2SDe      
2015 02  18.26427  01 30 59.533  +13 28 40.76  24.0r 14UB228   568  C~2SDe      
2015 12  07.43260  01 36 32.252  +14 18 19.82  23.9w 14UB228   568  C~2SDe      
2016 01  03.25961  01 35 46.240  +14 12 10.20  24.0r 14UB228   568  C~2SDe      
2016 01  03.32552  01 35 46.204  +14 12 09.76  24.0r 14UB228   568  C~2SDe      
2017 08  25.55831  01 57 00.286  +16 31 18.44  24.1w 14UB228   568  C~2SDe      
2017 08  30.58085  01 56 48.639  +16 30 57.59  24.0w 14UB228   568  C~2SDe      

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     0.28       0.00     0.02
     2   0.0000     -0.72    -0.37      -0.15    -0.16
     3   0.0001     -0.99     0.07       0.43     0.08
     4   0.0656   -764.24     0.06     161.96    -0.05
     5   0.0657   -766.18     0.02     162.33     0.06
     6   0.0683   -811.63    -0.03     168.01     0.00
     7   0.0685   -814.16     0.01     168.39     0.04
     8   0.1423  -2492.21    -0.11     304.81    -0.12
     9   0.1532  -2785.67    -0.07     319.65    -0.10
    10   0.1562  -2868.03    -0.04     323.65     0.05
    11   0.1693  -3233.14     0.07     338.90     0.06
    12   0.2243  -4788.34     0.30     377.68     0.11
    13   0.2268  -4857.84     0.07     378.24    -0.08
    14   0.2295  -4932.90     0.00     379.16     0.10
    15   0.2321  -5004.16    -0.09     379.58    -0.08
    16   0.2322  -5007.13    -0.08     379.68    -0.02
    17   0.2324  -5013.98    -0.10     379.87     0.07
    18   0.3225  -7082.52    -0.06     348.58    -0.04
    19   0.3908  -7788.82     0.08     272.66    -0.02
    20   1.0428   5980.31     0.10     839.18    -0.09
    21   1.0430   5977.59     0.03     839.90     0.08
    22   1.0592   5748.49    -0.02     879.45     0.00
    23   1.0595   5743.75    -0.03     880.28     0.06
    24   1.1113   4729.29    -0.01     990.80    -0.04
    25   1.1114   4726.54     0.01     991.04    -0.04
    26   1.1251   4399.05     0.01    1015.33    -0.06
    27   1.2039   2246.86    -0.00    1106.63    -0.00
    28   1.2040   2243.26    -0.03    1106.70    -0.03
    29   1.2042   2239.71    -0.03    1106.91     0.08
    30   1.2071   2154.34    -0.12    1108.54    -0.06
    31   1.2127   1997.40    -0.02    1111.54     0.09
    32   1.2804    198.92     0.02    1111.03     0.06
    33   1.2808    190.32     0.18    1110.94     0.06
    34   1.2863     61.91    -0.09    1108.16     0.03
    35   1.4721  -1087.51    -0.12     876.78     0.13
    36   1.5297      1.85     0.09     800.82    -0.14
    37   2.3296   5601.19     0.03    1806.78    -0.01
    38   2.4031   4843.23     0.02    1704.76    -0.06
    39   2.4032   4842.58    -0.04    1704.54    -0.01
    40   4.0466  25153.03    -0.03    3046.23    -0.01
    41   4.0603  24986.03     0.02    3083.78     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.

14UB228    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        57.662    57.676    57.648
ecceobj         0.338     0.338     0.337
incobj          7.419     7.419     7.419
qmin           37.521    37.479    37.572
qmax           77.412    77.410    77.326
amean          56.931    56.931    56.932
amin           56.256    56.212    56.248
amax           57.774    57.766    57.764
emean           0.329     0.329     0.328
emin            0.319     0.318     0.318
emax            0.341     0.341     0.339
imean           7.932     7.884     8.019
imin            7.763     7.520     7.847
imax            8.149     8.216     8.247
excite_mean     0.357     0.357     0.357
fracstop        1.000     1.000     1.000
cjmean          3.101     3.101     3.101

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       168.0     167.8     175.0
kozaiamp        180.0     180.0     180.0