Orbit Fit and Astrometric record for 14UB229

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: 14UB229   
# Created Thu Dec  9 02:12:46 2021
# Orbit generated from Bernstein formalism
# Fitting     34 observations of     34
# Arc:   4.06y
# First observation: 2013/08/09
#  Last observation: 2017/08/30
Preliminary a, adot, b, bdot, g, gdot:
   0.000057   0.022547   0.000023   0.001298   0.024511   0.000000
# Chi-squared of fit:    10.36 DOF:     62 RMS:  0.10
# Min/Max residuals:    -0.29    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.432569E-05  2.279972E-02  1.680345E-06  1.319689E-03  2.464292E-02  6.766782E-03
# Covariance matrix:
  1.9339E-13 -1.1118E-13  1.0653E-15 -3.6755E-15  5.7894E-14 -6.9733E-13
 -1.1118E-13  2.0663E-13 -6.2222E-15  1.0949E-14  6.3805E-14  2.1117E-12
  1.0653E-15 -6.2222E-15  9.9040E-14 -5.4192E-14 -3.9508E-15 -8.6394E-14
 -3.6755E-15  1.0949E-14 -5.4192E-14  5.2683E-14  4.9477E-15  1.4990E-13
  5.7894E-14  6.3805E-14 -3.9508E-15  4.9477E-15  1.1710E-13  9.6715E-13
 -6.9733E-13  2.1117E-12 -8.6394E-14  1.4990E-13  9.6715E-13  2.8924E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.366643   29.772830    0.970839    0.012348   -0.297837  2456514.066568
# Heliocentric elements and errors
Epoch:              2456510.5000  =  2013/08/06
Mean Anomaly:           82.16414 +/-     0.041
Argument of Peri:      283.22421 +/-     0.024
Long of Asc Node:      353.47332 +/-     0.005
Inclination:             4.09628 +/-     0.000
Eccentricity:         0.26087135 +/-    0.0002
Semi-Major Axis:     39.62783396 +/-    0.0052
Time of Perihelion: 2435714.5513 +/-       9.5
Perihelion:          29.29006760 +/-    0.0084
Aphelion:            49.96560033 +/-    0.0099
Period (y)              249.4645 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.93352906 +/-    0.0005
Ecliptic Y           19.44145419 +/-    0.0003
Ecliptic Z            1.67579531 +/-    0.0000
Ecliptic XDOT        -0.00061730 +/-    0.0000
Ecliptic YDOT         0.00256781 +/-    0.0000
Ecliptic ZDOT         0.00017768 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.89005920 +/-    0.0005
Geocenter to KBO     40.57959899 +/-    0.0006
# Hcoef:  8.23

The following table shows the complete astrometric record for 14UB229. 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 (14UB229) followed by the observatory code and reference code for the source of the astrometry.

2013 08  09.56579  01 47 20.686  +13 36 20.60  24.7r 14UB229   568  C~2SDi      
2013 09  02.44079  01 46 33.402  +13 33 37.32  24.3r 14UB229   568  C~2SDi      
2013 09  02.48390  01 46 33.281  +13 33 36.89  24.4r 14UB229   568  C~2SDi      
2013 09  03.45987  01 46 30.385  +13 33 24.31  24.4r 14UB229   568  C~2SDi      
2013 09  03.50647  01 46 30.233  +13 33 23.75  24.7r 14UB229   568  C~2SDi      
2013 11  01.52056  01 42 13.042  +13 11 25.20  23.9r 14UB229   568  C~2SDi      
2013 11  29.26449  01 40 15.237  +12 59 56.15  24.4r 14UB229   568  C~2SDi      
2013 12  04.40991  01 39 58.037  +12 58 09.06  25.3r 14UB229   568  C~2SDi      
2014 01  02.26136  01 39 01.235  +12 51 32.55  24.5r 14UB229   568  C~2SDi      
2014 01  02.31334  01 39 01.179  +12 51 32.28  24.7r 14UB229   568  C~2SDi      
2014 01  03.22715  01 39 00.622  +12 51 26.32  24.5r 14UB229   568  C~2SDi      
2014 01  03.26959  01 39 00.576  +12 51 25.98  24.0r 14UB229   568  C~2SDi      
2014 07  26.53762  01 52 17.132  +14 07 13.11  24.2r 14UB229   568  C~2SDi      
2014 07  26.58079  01 52 17.156  +14 07 13.34  24.4r 14UB229   568  C~2SDi      
2014 08  24.47811  01 51 52.618  +14 07 08.62  24.5r 14UB229   568  C~2SDi      
2014 08  24.54804  01 51 52.466  +14 07 08.14  24.3r 14UB229   568  C~2SDi      
2014 08  30.45339  01 51 38.517  +14 06 16.12  24.3r 14UB229   568  C~2SDi      
2014 08  30.55998  01 51 38.234  +14 06 15.05  24.0r 14UB229   568  C~2SDi      
2014 09  18.47852  01 50 36.288  +14 01 42.85  24.0r 14UB229   568  C~2SDi      
2014 09  18.52126  01 50 36.116  +14 01 42.12  24.2r 14UB229   568  C~2SDi      
2014 09  23.51956  01 50 16.032  +14 00 06.62  24.4r 14UB229   568  C~2SDi      
2014 10  22.30273  01 48 02.804  +13 48 45.66  24.5r 14UB229   568  C~2SDi      
2014 10  22.34832  01 48 02.577  +13 48 44.50  24.2r 14UB229   568  C~2SDi      
2014 10  22.39209  01 48 02.357  +13 48 43.32  24.8r 14UB229   568  C~2SDi      
2014 10  25.50750  01 47 47.146  +13 47 21.55  24.2r 14UB229   568  C~2SDi      
2014 11  20.23887  01 45 48.783  +13 36 16.43  24.6r 14UB229   568  C~2SDi      
2014 11  20.37921  01 45 48.194  +13 36 13.31  24.3r 14UB229   568  C~2SDi      
2014 11  21.28243  01 45 44.482  +13 35 51.54  24.1r 14UB229   568  C~2SDi      
2014 11  21.43749  01 45 43.836  +13 35 47.89  24.5r 14UB229   568  C~2SDi      
2015 01  24.25093  01 44 00.748  +13 23 24.66  24.1r 14UB229   568  C~2SDi      
2015 02  19.26459  01 45 06.010  +13 28 12.01  24.3r 14UB229   568  C~2SDi      
2015 12  07.41197  01 49 41.446  +14 02 02.14  24.2w 14UB229   568  C~2SDi      
2017 08  25.57304  02 06 20.428  +15 37 59.31  24.2w 14UB229   568  C~2SDi      
2017 08  30.59490  02 06 09.773  +15 37 25.69  24.5w 14UB229   568  C~2SDi      

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     0.06       0.00    -0.17
     2   0.0654   -702.42    -0.12      92.56    -0.01
     3   0.0655   -704.23     0.04      92.79     0.05
     4   0.0682   -748.17     0.12      96.07    -0.07
     5   0.0683   -750.44     0.03      96.34     0.01
     6   0.2299  -4727.78    -0.20     209.18     0.03
     7   0.3058  -6582.99    -0.29     187.91     0.09
     8   0.3199  -6856.40     0.24     179.10    -0.10
     9   0.3989  -7775.29     0.27     110.65    -0.11
    10   0.3990  -7776.15     0.07     110.69     0.06
    11   0.4015  -7785.92     0.02     108.10     0.05
    12   0.4017  -7786.67    -0.26     108.02     0.07
    13   0.9609   4693.93    -0.07     210.14     0.09
    14   0.9610   4694.34    -0.01     210.23    -0.03
    15   1.0401   4358.23    -0.04     330.98    -0.03
    16   1.0403   4355.99    -0.00     331.31    -0.01
    17   1.0565   4147.63    -0.08     353.81     0.13
    18   1.0568   4143.40    -0.04     354.25     0.12
    19   1.1086   3203.61     0.02     416.29    -0.05
    20   1.1087   3201.01     0.01     416.49     0.00
    21   1.1224   2893.75     0.02     430.06     0.01
    22   1.2012    838.25     0.10     478.73    -0.04
    23   1.2013    834.74     0.10     478.82    -0.01
    24   1.2014    831.33     0.04     478.86    -0.04
    25   1.2100    595.15     0.02     480.99     0.00
    26   1.2804  -1253.60    -0.04     473.07    -0.24
    27   1.2808  -1262.73     0.10     473.22    -0.01
    28   1.2833  -1321.06    -0.01     472.18     0.04
    29   1.2837  -1331.16     0.02     472.14     0.10
    30   1.4584  -3001.34    -0.13     315.76     0.03
    31   1.5296  -2009.26     0.02     243.29     0.03
    32   2.3268   2463.42    -0.05     715.69     0.07
    33   4.0438  18090.92     0.02    1133.66    -0.11
    34   4.0576  17933.46    -0.01    1153.70     0.04

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.

14UB229    quality flag:3

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

axisobj        39.847    39.862    39.832
ecceobj         0.263     0.263     0.262
incobj          4.084     4.084     4.084
qmin           28.469    28.422    28.444
qmax           51.168    51.174    51.179
amean          39.455    39.455    39.455
amin           38.959    38.955    38.972
amax           40.024    40.039    40.019
emean           0.262     0.263     0.261
emin            0.245     0.246     0.243
emax            0.279     0.279     0.280
imean           5.243     5.124     5.398
imin            4.567     4.373     4.614
imax            5.890     5.784     6.051
excite_mean     0.277     0.278     0.277
fracstop        1.000     1.000     1.000
cjmean          2.963     2.963     2.963

libcent 0       179.2     180.5     180.4
libamp  0        95.7     101.2      91.0
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       181.6     154.2     152.7
kozaiamp        179.9     180.0     180.0