Orbit Fit and Astrometric record for 14UU228

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: 14UU228   
# Created Sat Jun  6 01:11:39 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   27 observations of   27
# Arc:   6.21y
# First observation: 2013/08/09
#  Last observation: 2019/10/26
# Chi-squared of fit:     8.66 DOF:   48 RMS:  0.10
# Min/Max residuals:    -0.20    0.25
# Exact a, adot, b, bdot, g, gdot:
  2.127629E-05  4.684028E-02 -3.148283E-07 -2.471660E-03  3.538928E-02 -3.514712E-03
# Covariance matrix:
  2.5147E-13 -1.8730E-13 -6.4276E-15  8.7224E-15  7.1314E-14 -5.7167E-13
 -1.8730E-13  3.1617E-13  9.5152E-15 -1.6300E-14  3.8757E-14  1.0351E-12
 -6.4276E-15  9.5152E-15  8.2997E-14 -2.5653E-14 -1.4728E-16  3.3399E-14
  8.7224E-15 -1.6300E-14 -2.5653E-14  2.1753E-14 -2.4049E-15 -5.7121E-14
  7.1314E-14  3.8757E-14 -1.4728E-16 -2.4049E-15  1.1261E-13  1.3206E-13
 -5.7167E-13  1.0351E-12  3.3399E-14 -5.7121E-14  1.3206E-13  3.6280E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.110632   28.047626    0.961791    0.017732   -0.325690  2456514.003748
# Heliocentric elements and errors
Epoch:              2456514.5000  =  2013/08/10
Mean Anomaly:          345.55243 +/-     0.006
Argument of Peri:      161.17125 +/-     0.011
Long of Asc Node:      252.54593 +/-     0.002
Inclination:             4.23871 +/-     0.000
Eccentricity:         0.30063497 +/-    0.0000
Semi-Major Axis:     39.81307418 +/-    0.0025
Time of Perihelion: 2460196.8867 +/-       8.3
Perihelion:          27.84387185 +/-    0.0022
Aphelion:            51.78227652 +/-    0.0035
Period (y)              251.2157 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.64152131 +/-    0.0002
Ecliptic Y           12.57464802 +/-    0.0001
Ecliptic Z            1.53338018 +/-    0.0000
Ecliptic XDOT        -0.00194059 +/-    0.0000
Ecliptic YDOT         0.00307449 +/-    0.0000
Ecliptic ZDOT        -0.00020555 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.60007606 +/-    0.0002
Geocenter to KBO     28.25720665 +/-    0.0003
# Hcoef:  9.80

The following table shows the complete astrometric record for 14UU228. 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 (14UU228) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.50297  01 39 37.522  +13 40 58.34  24.0r 14UU228   568  C~2SDh      
2013 08  09.54639  01 39 37.475  +13 40 58.38  24.2r 14UU228   568  C~2SDh      
2013 09  02.46447  01 38 37.322  +13 37 10.97  24.4r 14UU228   568  C~2SDh      
2013 09  03.44044  01 38 33.497  +13 36 53.07  24.5r 14UU228   568  C~2SDh      
2013 09  03.48706  01 38 33.308  +13 36 52.22  24.0r 14UU228   568  C~2SDh      
2013 11  28.26999  01 30 25.916  +12 48 41.70  24.5r 14UU228   568  C~2SDh      
2013 12  05.28395  01 29 57.837  +12 45 12.18  24.1r 14UU228   568  C~2SDh      
2014 01  02.23765  01 29 04.742  +12 36 22.83  24.1r 14UU228   568  C~2SDh      
2014 01  02.28476  01 29 04.727  +12 36 22.37  24.0r 14UU228   568  C~2SDh      
2014 01  03.25016  01 29 04.756  +12 36 14.17  24.2r 14UU228   568  C~2SDh      
2014 01  03.31330  01 29 04.742  +12 36 13.75  24.5r 14UU228   568  C~2SDh      
2014 07  26.54156  01 50 09.735  +14 29 04.60  24.1r 14UU228   568  C~2SDh      
2014 07  26.58476  01 50 09.773  +14 29 05.24  24.2r 14UU228   568  C~2SDh      
2014 08  24.48198  01 49 49.092  +14 29 34.67  24.1r 14UU228   568  C~2SDh      
2014 08  24.55192  01 49 48.905  +14 29 33.90  24.9r 14UU228   568  C~2SDh      
2014 08  30.45338  01 49 31.760  +14 28 24.79  23.9r 14UU228   568  C~2SDh      
2014 08  30.55998  01 49 31.390  +14 28 23.16  24.2r 14UU228   568  C~2SDh      
2014 10  22.29484  01 44 45.763  +14 03 22.84  24.2r 14UU228   568  C~2SDh      
2014 10  22.33958  01 44 45.461  +14 03 21.12  24.4r 14UU228   568  C~2SDh      
2014 10  22.38432  01 44 45.187  +14 03 19.51  24.6r 14UU228   568  C~2SDh      
2014 10  23.48145  01 44 37.971  +14 02 37.41  23.8r 14UU228   568  C~2SDh      
2014 11  20.22868  01 41 47.722  +13 45 08.29  24.1r 14UU228   568  C~2SDh      
2014 11  20.36911  01 41 46.951  +13 45 03.14  23.8r 14UU228   568  C~2SDh      
2014 11  21.27445  01 41 42.130  +13 44 31.30  25.4r 14UU228   568  C~2SDh      
2014 11  21.42970  01 41 41.286  +13 44 25.74  24.2r 14UU228   568  C~2SDh      
2019 10  26.405090 02 40 49.753  +17 54 40.53  24.0G 14UU228   G37  C~3coM      
2019 10  26.490350 02 40 49.160  +17 54 37.74        14UU228   G37  C~3coM      

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    -0.01       0.00    -0.18
  2   0.0001      0.00     0.05       0.00    -0.12
  3   0.0656      0.00    -0.03       0.00    -0.04
  4   0.0683      0.00    -0.03       0.00    -0.05
  5   0.0684      0.00    -0.01       0.00    -0.04
  6   0.3033      0.00    -0.01       0.00     0.07
  7   0.3225      0.00     0.07       0.00     0.25
  8   0.3990      0.00     0.09       0.00     0.13
  9   0.3991      0.00    -0.01       0.00     0.09
 10   0.4018      0.00    -0.01       0.00    -0.03
 11   0.4019      0.00    -0.20       0.00     0.06
 12   0.9611      0.00     0.17       0.00    -0.16
 13   0.9612      0.00     0.04       0.00    -0.04
 14   1.0403      0.00    -0.07       0.00     0.01
 15   1.0405      0.00    -0.07       0.00    -0.10
 16   1.0567      0.00     0.17       0.00     0.07
 17   1.0570      0.00     0.02       0.00    -0.11
 18   1.2013      0.00    -0.06       0.00     0.10
 19   1.2015      0.00    -0.12       0.00     0.07
 20   1.2016      0.00     0.25       0.00     0.16
 21   1.2046      0.00     0.03       0.00    -0.07
 22   1.2806      0.00    -0.16       0.00     0.11
 23   1.2809      0.00    -0.11       0.00    -0.08
 24   1.2834      0.00     0.02       0.00    -0.01
 25   1.2839      0.00     0.01       0.00    -0.11
 26   6.2119      0.00     0.05       0.00     0.01
 27   6.2121      0.00    -0.04       0.00    -0.02

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.

14UU228    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        40.011    40.011    40.011
ecceobj         0.303     0.303     0.303
incobj          4.241     4.241     4.241
qmin           27.418    27.445    27.369
qmax           52.393    52.217    52.340
amean          39.455    39.456    39.455
amin           38.913    38.914    38.909
amax           40.120    40.079    40.097
emean           0.291     0.290     0.291
emin            0.276     0.278     0.278
emax            0.306     0.304     0.306
imean           5.670     5.787     5.743
imin            5.073     5.283     5.164
imax            6.282     6.388     6.300
excite_mean     0.307     0.308     0.308
fracstop        1.000     1.000     1.000
cjmean          2.942     2.942     2.942

libcent 0       179.7     179.4     180.0
libamp  0       116.2     116.0     117.0
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       197.2     197.5     196.0
kozaiamp        180.0     180.0     180.0