Orbit Fit and Astrometric record for 14UP228

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: 14UP228   
# Created Sat Dec  4 02:12:52 2021
# Orbit generated from Bernstein formalism
# Fitting     35 observations of     35
# Arc:   4.06y
# First observation: 2013/08/09
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
  -0.000133   0.019145  -0.000000   0.000746   0.021705   0.000000
# Chi-squared of fit:     8.80 DOF:     64 RMS:  0.09
# Min/Max residuals:    -0.19    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.391237E-05  1.889888E-02  1.299959E-07  7.347736E-04  2.163685E-02 -1.226060E-03
# Covariance matrix:
  2.0032E-13 -1.1540E-13  5.0531E-16 -2.8574E-15  6.6099E-14 -8.6095E-13
 -1.1540E-13  1.9372E-13 -3.7787E-15  7.1228E-15  3.9948E-14  2.2855E-12
  5.0531E-16 -3.7787E-15  8.9996E-14 -4.9001E-14 -2.3501E-15 -6.2650E-14
 -2.8574E-15  7.1228E-15 -4.9001E-14  4.9408E-14  2.4130E-15  1.1353E-13
  6.6099E-14  3.9948E-14 -2.3501E-15  2.4130E-15  1.0049E-13  8.3339E-13
 -8.6095E-13  2.2855E-12 -6.2650E-14  1.1353E-13  8.3339E-13  3.6563E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.547997   28.636598    0.965045    0.014099   -0.316091  2456514.012218
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:          228.05973 +/-     0.095
Argument of Peri:      189.61627 +/-     0.094
Long of Asc Node:      339.60858 +/-     0.008
Inclination:             3.41128 +/-     0.000
Eccentricity:         0.12782120 +/-    0.0002
Semi-Major Axis:     42.56967721 +/-    0.0025
Time of Perihelion: 2493691.7356 +/-      26.6
Perihelion:          37.12836996 +/-    0.0090
Aphelion:            48.01098446 +/-    0.0091
Period (y)              277.7530 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.26368509 +/-    0.0006
Ecliptic Y           21.43563881 +/-    0.0003
Ecliptic Z            2.05470124 +/-    0.0000
Ecliptic XDOT        -0.00129196 +/-    0.0000
Ecliptic YDOT         0.00202173 +/-    0.0000
Ecliptic ZDOT         0.00008613 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.54460350 +/-    0.0006
Geocenter to KBO     46.21744714 +/-    0.0007
# Hcoef:  7.60

The following table shows the complete astrometric record for 14UP228. 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 (14UP228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.51144  01 42 43.000  +13 22 11.27  24.6r 14UP228   568  C~2SDg      
2013 08  09.55415  01 42 42.952  +13 22 11.17  25.7r 14UP228   568  C~2SDg      
2013 09  02.42913  01 41 58.651  +13 19 27.26  23.6r 14UP228   568  C~2SDg      
2013 09  02.47226  01 41 58.545  +13 19 26.85  24.3r 14UP228   568  C~2SDg      
2013 10  08.50929  01 39 49.328  +13 08 40.79  23.8r 14UP228   568  C~2SDg      
2013 11  01.50542  01 38 06.755  +12 59 10.10  24.3r 14UP228   568  C~2SDg      
2013 11  29.24926  01 36 23.529  +12 48 48.38  24.3r 14UP228   568  C~2SDg      
2013 12  04.39820  01 36 08.472  +12 47 11.68  24.2r 14UP228   568  C~2SDg      
2013 12  29.26359  01 35 22.335  +12 41 40.08  24.1r 14UP228   568  C~2SDg      
2013 12  30.36912  01 35 21.408  +12 41 31.36  24.1r 14UP228   568  C~2SDg      
2014 01  02.24545  01 35 19.479  +12 41 11.47  24.2r 14UP228   568  C~2SDg      
2014 01  02.29253  01 35 19.450  +12 41 11.04  24.3r 14UP228   568  C~2SDg      
2014 01  03.21549  01 35 18.995  +12 41 05.60  24.0r 14UP228   568  C~2SDg      
2014 01  03.25792  01 35 18.978  +12 41 05.19  24.5r 14UP228   568  C~2SDg      
2014 07  26.52587  01 46 53.886  +13 47 14.64  24.1r 14UP228   568  C~2SDg      
2014 07  26.56909  01 46 53.896  +13 47 14.96  24.3r 14UP228   568  C~2SDg      
2014 07  26.61244  01 46 53.906  +13 47 15.15  24.4r 14UP228   568  C~2SDg      
2014 08  24.53579  01 46 28.004  +13 46 44.07  24.1r 14UP228   568  C~2SDg      
2014 08  30.44167  01 46 14.955  +13 45 52.27  24.8r 14UP228   568  C~2SDg      
2014 08  30.54834  01 46 14.688  +13 45 51.19  24.4r 14UP228   568  C~2SDg      
2014 09  18.46688  01 45 17.964  +13 41 32.07  23.9r 14UP228   568  C~2SDg      
2014 09  18.50960  01 45 17.807  +13 41 31.38  24.3r 14UP228   568  C~2SDg      
2014 09  23.50788  01 44 59.642  +13 40 02.03  24.1r 14UP228   568  C~2SDg      
2014 10  22.29094  01 43 00.449  +13 29 34.98  24.0r 14UP228   568  C~2SDg      
2014 10  22.33551  01 43 00.251  +13 29 33.91  23.7r 14UP228   568  C~2SDg      
2014 10  22.38043  01 43 00.054  +13 29 32.78  24.2r 14UP228   568  C~2SDg      
2014 10  23.47641  01 42 55.300  +13 29 06.52  24.2r 14UP228   568  C~2SDg      
2014 10  25.49236  01 42 46.586  +13 28 18.30  24.4r 14UP228   568  C~2SDg      
2014 11  21.26073  01 40 58.339  +13 17 50.79  24.3r 14UP228   568  C~2SDg      
2014 11  21.27044  01 40 58.295  +13 17 50.78  24.1r 14UP228   568  C~2SDg      
2014 11  21.42582  01 40 57.728  +13 17 47.30  24.5r 14UP228   568  C~2SDg      
2015 01  28.27540  01 39 35.551  +13 06 52.28  23.8r 14UP228   568  C~2SDg      
2015 12  07.42022  01 44 16.014  +13 38 34.09  24.5w 14UP228   568  C~2SDg      
2017 08  25.59703  01 58 56.790  +15 02 32.50  24.4w 14UP228   568  C~2SDg      
2017 08  30.61830  01 58 46.405  +15 01 55.64  24.4w 14UP228   568  C~2SDg      

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    -0.02       0.00     0.08
     2   0.0001     -0.69    -0.09       0.16     0.07
     3   0.0655   -662.98    -0.10      79.43    -0.19
     4   0.0656   -664.58     0.11      79.60    -0.16
     5   0.1643  -2657.53    -0.13     157.28     0.08
     6   0.2300  -4261.69     0.04     168.43     0.11
     7   0.3059  -5894.76     0.28     138.58    -0.08
     8   0.3200  -6135.31     0.02     128.88     0.06
     9   0.3881  -6885.55     0.04      66.70    -0.06
    10   0.3911  -6901.38     0.10      63.55    -0.08
    11   0.3990  -6934.96    -0.07      55.35     0.08
    12   0.3991  -6935.52    -0.12      55.10    -0.04
    13   0.4017  -6943.71    -0.03      52.47     0.06
    14   0.4018  -6944.09    -0.01      52.18    -0.12
    15   0.9610   3954.21    -0.01      98.99    -0.08
    16   0.9611   3954.46     0.03      99.23    -0.02
    17   0.9613   3954.66     0.03      99.36    -0.08
    18   1.0404   3590.75    -0.04     204.30    -0.02
    19   1.0566   3394.59     0.04     223.44     0.02
    20   1.0569   3390.57     0.01     223.81     0.00
    21   1.1087   2525.73     0.05     275.85    -0.04
    22   1.1088   2523.35     0.02     276.02     0.01
    23   1.1225   2244.11    -0.01     286.93    -0.09
    24   1.2013    396.80    -0.02     322.86     0.11
    25   1.2014    393.72    -0.05     322.90     0.10
    26   1.2016    390.63    -0.06     322.88     0.04
    27   1.2046    316.48    -0.01     323.23    -0.01
    28   1.2101    180.53     0.24     323.82     0.09
    29   1.2834  -1519.09    -0.03     306.38    -0.07
    30   1.2834  -1519.69    -0.07     306.60     0.17
    31   1.2838  -1528.66    -0.09     306.34     0.07
    32   1.4696  -2884.44    -0.17     128.89     0.14
    33   2.3269   1618.64     0.12     431.83    -0.09
    34   4.0440  15400.45     0.02     671.26    -0.03
    35   4.0578  15245.64    -0.04     688.21    -0.03

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.

14UP228    quality flag:2

Type:       SCATNEAR  SCATNEAR CLASSICAL

axisobj        42.751    42.758    42.744
ecceobj         0.122     0.122     0.122
incobj          3.402     3.402     3.402
qmin           35.510    35.479    35.661
qmax           50.037    49.928    49.809
amean          42.500    42.508    42.491
amin           42.059    42.079    42.093
amax           42.945    42.958    42.915
emean           0.131     0.128     0.123
emin            0.103     0.099     0.095
emax            0.166     0.163     0.161
imean           5.533     5.090     5.396
imin            4.055     2.489     1.798
imax            6.620     6.534     7.692
excite_mean     0.164     0.157     0.158
fracstop        1.000     1.000     1.000
cjmean          3.050     3.053     3.053

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       183.7     180.8     182.9
kozaiamp        179.9     180.0     180.0