Orbit Fit and Astrometric record for 14US229

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: 14US229   
# Created Wed Dec  8 02:12:53 2021
# Orbit generated from Bernstein formalism
# Fitting     42 observations of     42
# Arc:   3.47y
# First observation: 2013/08/08
#  Last observation: 2017/01/28
Preliminary a, adot, b, bdot, g, gdot:
   0.000103   0.039124  -0.000009  -0.001653   0.030611   0.000000
# Chi-squared of fit:     4.48 DOF:     78 RMS:  0.06
# Min/Max residuals:    -0.17    0.15
# Exact a, adot, b, bdot, g, gdot:
  2.070733E-05  3.883065E-02 -4.279654E-07 -1.655660E-03  3.027221E-02 -1.003646E-03
# Covariance matrix:
  1.2721E-13 -9.2896E-14 -2.6145E-15  4.2970E-15  3.0052E-14 -8.2559E-13
 -9.2896E-14  2.8259E-13  5.5932E-15 -1.4968E-14  9.8881E-14  3.1329E-12
 -2.6145E-15  5.5932E-15  8.5052E-14 -4.7882E-14  7.7000E-17  8.4074E-14
  4.2970E-15 -1.4968E-14 -4.7882E-14  4.5587E-14 -4.1275E-15 -2.0676E-13
  3.0052E-14  9.8881E-14  7.7000E-17 -4.1275E-15  1.1215E-13  9.7105E-13
 -8.2559E-13  3.1329E-12  8.4074E-14 -2.0676E-13  9.7105E-13  4.2776E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.147899   23.539848    0.939456    0.021248   -0.385661  2456513.071958
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          355.63227 +/-     0.013
Argument of Peri:      138.14496 +/-     0.034
Long of Asc Node:      254.83907 +/-     0.004
Inclination:             3.89708 +/-     0.000
Eccentricity:         0.40161181 +/-    0.0000
Semi-Major Axis:     55.57195060 +/-    0.0040
Time of Perihelion: 2458346.3408 +/-       5.5
Perihelion:          33.25359882 +/-    0.0033
Aphelion:            77.89030238 +/-    0.0061
Period (y)              414.2778 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.96787996 +/-    0.0003
Ecliptic Y           12.46939247 +/-    0.0001
Ecliptic Z            1.81401327 +/-    0.0000
Ecliptic XDOT        -0.00148437 +/-    0.0000
Ecliptic YDOT         0.00318584 +/-    0.0000
Ecliptic ZDOT        -0.00015436 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.43330648 +/-    0.0003
Geocenter to KBO     33.03360184 +/-    0.0004
# Hcoef:  8.19

The following table shows the complete astrometric record for 14US229. 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 (14US229) followed by the observatory code and reference code for the source of the astrometry.

2013 08  08.57118  01 22 23.447  +12 03 51.51  23.5r 14US229   568  C~2SDl      
2013 08  08.57598  01 22 23.434  +12 03 51.72  23.5r 14US229   568  C~2SDl      
2013 08  08.62000  01 22 23.381  +12 03 51.48  23.6r 14US229   568  C~2SDl      
2013 09  01.54122  01 21 22.897  +11 59 34.17  23.7r 14US229   568  C~2SDl      
2013 09  01.58009  01 21 22.739  +11 59 33.42  23.4r 14US229   568  C~2SDl      
2013 09  02.52849  01 21 19.286  +11 59 16.21  23.1r 14US229   568  C~2SDl      
2013 09  02.57808  01 21 19.099  +11 59 15.25  23.7r 14US229   568  C~2SDl      
2013 10  09.45225  01 18 22.212  +11 42 45.16  23.3r 14US229   568  C~2SDl      
2013 10  30.39222  01 16 28.825  +11 30 56.36  23.5r 14US229   568  C~2SDl      
2013 11  01.32910  01 16 18.822  +11 29 50.92  23.4r 14US229   568  C~2SDl      
2013 11  01.46495  01 16 18.109  +11 29 46.27  23.4r 14US229   568  C~2SDl      
2013 11  05.43534  01 15 58.075  +11 27 33.83  23.4r 14US229   568  C~2SDl      
2013 11  28.22052  01 14 21.609  +11 16 11.82  23.5r 14US229   568  C~2SDl      
2013 12  04.36653  01 14 02.649  +11 13 42.56  23.6r 14US229   568  C~2SDl      
2013 12  30.30462  01 13 26.165  +11 07 09.62  23.4r 14US229   568  C~2SDl      
2014 07  25.51682  01 31 05.373  +12 47 13.43  23.7r 14US229   568  C~2SDl      
2014 07  25.55817  01 31 05.390  +12 47 13.72  23.5r 14US229   568  C~2SDl      
2014 07  25.59996  01 31 05.406  +12 47 14.02  23.4r 14US229   568  C~2SDl      
2014 08  23.55641  01 30 33.344  +12 46 20.64  23.5r 14US229   568  C~2SDl      
2014 08  23.60330  01 30 33.220  +12 46 20.10  23.4r 14US229   568  C~2SDl      
2014 08  27.44876  01 30 22.473  +12 45 32.73  23.4r 14US229   568  C~2SDl      
2014 08  27.54519  01 30 22.175  +12 45 31.51  23.5r 14US229   568  C~2SDl      
2014 09  18.37931  01 28 57.475  +12 38 24.49  23.4r 14US229   568  C~2SDl      
2014 09  18.42403  01 28 57.265  +12 38 23.34  23.5r 14US229   568  C~2SDl      
2014 10  22.42490  01 25 57.633  +12 21 05.26  23.1r 14US229   568  C~2SDl      
2014 10  22.46432  01 25 57.411  +12 21 03.96  23.1r 14US229   568  C~2SDl      
2014 10  22.50375  01 25 57.196  +12 21 02.57  23.3r 14US229   568  C~2SDl      
2014 10  25.42600  01 25 41.191  +12 19 23.70  23.2r 14US229   568  C~2SDl      
2014 11  19.23322  01 23 37.471  +12 05 56.41  23.4r 14US229   568  C~2SDl      
2014 11  19.36622  01 23 36.890  +12 05 52.35  23.5r 14US229   568  C~2SDl      
2014 11  21.21474  01 23 29.062  +12 04 57.88  23.5r 14US229   568  C~2SDl      
2014 11  21.37712  01 23 28.367  +12 04 53.15  23.8r 14US229   568  C~2SDl      
2015 01  28.23032  01 22 39.898  +11 52 49.21  23.2r 14US229   568  C~2SDl      
2015 02  18.25610  01 24 09.197  +11 59 21.64  23.4r 14US229   568  C~2SDl      
2015 09  15.51502  01 37 59.904  +13 23 36.21  23.4w 14US229   568  C~2SDl      
2015 09  15.57438  01 37 59.640  +13 23 34.87  23.5w 14US229   568  C~2SDl      
2015 10  13.48307  01 35 38.165  +13 10 37.81        14US229   568  C~2SDl      
2015 10  13.54938  01 35 37.791  +13 10 35.55        14US229   568  C~2SDl      
2015 12  07.43675  01 31 14.988  +12 42 28.05  23.6w 14US229   568  C~2SDl      
2015 12  07.45744  01 31 14.928  +12 42 27.58  23.6w 14US229   568  C~2SDl      
2017 01  27.26476  01 39 40.019  +13 18 25.30  23.6w 14US229   568  C~2SDl      
2017 01  28.26052  01 39 42.676  +13 18 33.78  23.1w 14US229   568  C~2SDl      

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    -0.09
     2   0.0000     -0.10    -0.09       0.27     0.15
     3   0.0001     -0.91     0.02       0.33    -0.00
     4   0.0656   -920.16     0.03      92.91    -0.03
     5   0.0657   -922.59    -0.17      93.08    -0.00
     6   0.0683   -976.02     0.03      96.05     0.02
     7   0.0685   -978.92     0.04      96.19    -0.02
     8   0.1694  -3757.87     0.04     152.28    -0.06
     9   0.2268  -5569.08    -0.07     123.92     0.04
    10   0.2321  -5730.05     0.04     118.89    -0.02
    11   0.2324  -5741.52    -0.00     118.55    -0.08
    12   0.2433  -6064.50    -0.04     107.28     0.01
    13   0.3057  -7637.49     0.02      13.49    -0.05
    14   0.3225  -7952.66    -0.04     -18.73     0.09
    15   0.3935  -8599.62     0.15    -178.35     0.04
    16   0.9608   8070.05     0.03    -404.44     0.02
    17   0.9610   8070.39     0.03    -404.26    -0.02
    18   0.9611   8070.71     0.02    -404.06    -0.04
    19   1.0403   7613.98     0.03    -282.19    -0.03
    20   1.0405   7612.09     0.07    -282.03    -0.07
    21   1.0510   7448.22    -0.04    -268.58    -0.05
    22   1.0513   7443.71    -0.03    -268.12     0.02
    23   1.1110   6132.61    -0.00    -211.00    -0.02
    24   1.1112   6129.33     0.01    -210.94    -0.07
    25   1.2043   3299.75     0.06    -206.42     0.03
    26   1.2044   3296.24     0.06    -206.42     0.07
    27   1.2045   3292.80     0.12    -206.55    -0.01
    28   1.2125   3038.27    -0.01    -211.63     0.00
    29   1.2804   1054.20    -0.04    -288.41     0.05
    30   1.2808   1044.77     0.01    -289.01    -0.07
    31   1.2858    917.93    -0.01    -296.87     0.13
    32   1.2863    906.71    -0.03    -297.47     0.15
    33   1.4720    -22.91    -0.01    -704.55    -0.00
    34   1.5296   1339.58    -0.05    -827.89    -0.03
    35   2.1025  14525.63     0.04    -563.86     0.01
    36   2.1027  14521.54     0.04    -563.72     0.00
    37   2.1791  12305.58    -0.03    -544.80     0.00
    38   2.1793  12299.65    -0.08    -544.93    -0.11
    39   2.3295   8096.82    -0.09    -721.73     0.04
    40   2.3296   8095.83    -0.03    -721.84     0.03
    41   3.4708  15785.36     0.01   -1379.97    -0.01
    42   3.4735  15824.85     0.02   -1385.94    -0.00

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.

14US229    quality flag:3

Type:         5:2EEE    5:2EEE    5:2EEE

axisobj        56.009    56.023    55.996
ecceobj         0.406     0.406     0.406
incobj          3.900     3.900     3.900
qmin           32.698    32.698    32.705
qmax           79.614    79.749    79.660
amean          55.463    55.462    55.462
amin           54.687    54.687    54.645
amax           56.442    56.478    56.469
emean           0.399     0.399     0.399
emin            0.387     0.387     0.387
emax            0.411     0.412     0.411
imean           5.277     5.286     5.261
imin            4.894     4.892     4.900
imax            5.664     5.650     5.692
excite_mean     0.409     0.409     0.409
fracstop        1.000     1.000     1.000
cjmean          3.021     3.021     3.021

libcent 0       179.6     179.7     180.3
libamp  0       108.8     107.5     113.3
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       238.0     235.0     226.1
kozaiamp        180.0     106.7     180.0