Orbit Fit and Astrometric record for 14UB225

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: 14UB225   
# Created Fri Mar 29 01:17:11 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     39 observations of     39
# Arc:   9.42y
# First observation: 2014/07/07
#  Last observation: 2023/12/08
# Chi-squared of fit:    45.33 DOF:     72 RMS:  0.19
# Min/Max residuals:    -0.66    0.43
# Exact a, adot, b, bdot, g, gdot:
  1.378672E-05  2.065638E-02  3.521208E-07  1.205602E-04  2.229760E-02  1.628868E-03
# Covariance matrix:
  1.1291E-13 -1.4646E-14  2.6110E-15  1.6876E-16  6.9414E-14 -8.9126E-14
 -1.4646E-14  7.5531E-14  5.0772E-16 -6.9527E-18  1.9849E-14  5.0735E-13
  2.6110E-15  5.0772E-16  4.9844E-14 -7.2276E-15  3.1910E-15  2.0390E-15
  1.6876E-16 -6.9527E-18 -7.2276E-15  3.9777E-15  1.9049E-16 -1.4777E-16
  6.9414E-14  1.9849E-14  3.1910E-15  1.9049E-16  8.7348E-14  9.8857E-14
 -8.9126E-14  5.0735E-13  2.0390E-15 -1.4777E-16  9.8857E-14  3.6188E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.446096   21.406868    1.012590    0.006868    0.112342  2456845.862476
# Heliocentric elements and errors
Epoch:              2456846.5000  =  2014/07/08
Mean Anomaly:          110.02387 +/-     0.073
Argument of Peri:      158.01003 +/-     0.067
Long of Asc Node:      105.94944 +/-     0.003
Inclination:             3.46305 +/-     0.000
Eccentricity:         0.05840207 +/-    0.0001
Semi-Major Axis:     43.74336011 +/-    0.0025
Time of Perihelion: 2424550.3276 +/-      21.5
Perihelion:          41.18865739 +/-    0.0039
Aphelion:            46.29806283 +/-    0.0041
Period (y)              289.3186 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.94095968 +/-    0.0006
Ecliptic Y           15.35779614 +/-    0.0002
Ecliptic Z           -2.69575138 +/-    0.0000
Ecliptic XDOT        -0.00074413 +/-    0.0000
Ecliptic YDOT         0.00243063 +/-    0.0000
Ecliptic ZDOT         0.00000288 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.74561341 +/-    0.0005
Geocenter to KBO     44.84784231 +/-    0.0006
# Hcoef:  6.17

The following table shows the complete astrometric record for 14UB225. 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 (14UB225) followed by the observatory code and reference code for the source of the astrometry.

2014 07  07.361698 01 24 18.55   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.363660 01 24 18.54   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.365600 01 24 18.55   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.367232 01 24 18.54   +05 09 01.7         14UB225   W84  C~3Cnt      
2014 07  07.368558 01 24 18.54   +05 09 01.3         14UB225   W84  C~3Cnt      
2014 07  07.369863 01 24 18.57   +05 09 01.7         14UB225   W84  C~3Cnt      
2014 07  07.371087 01 24 18.55   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.372219 01 24 18.54   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.373349 01 24 18.57   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.375224 01 24 18.56   +05 09 01.6         14UB225   W84  C~3Cnt      
2014 07  07.377855 01 24 18.56   +05 09 01.8         14UB225   W84  C~3Cnt      
2014 07  07.380503 01 24 18.56   +05 09 01.5         14UB225   W84  C~3Cnt      
2014 10  27.227998 01 19 52.43   +04 37 02.3         14UB225   W84  C~3Cnt      
2014 10  27.229367 01 19 52.46   +04 37 02.3         14UB225   W84  C~3Cnt      
2014 10  28.228333 01 19 48.28   +04 36 38.6   22.6r 14UB225   W84  C~39oz      
2014 10  28.228843 01 19 48.26   +04 36 38.9   23.1r 14UB225   W84  C~1x8m      
2014 10  29.226921 01 19 44.13   +04 36 15.0   22.1i 14UB225   W84  C~39oz      
2014 10  29.227431 01 19 44.12   +04 36 15.3   22.3i 14UB225   W84  C~1x8m      
2014 11  14.054028 01 18 42.26   +04 30 36.6   23.5g 14UB225   W84  C~39oz      
2014 11  14.069780 01 18 42.20   +04 30 36.3   22.7r 14UB225   W84  C~39oz      
2014 11  14.070289 01 18 42.19   +04 30 36.6   22.9r 14UB225   W84  C~1x8m      
2014 11  15.054965 01 18 38.65   +04 30 17.7   23.5g 14UB225   W84  C~39oz      
2014 11  15.161655 01 18 38.28   +04 30 16.0   22.4i 14UB225   W84  C~39oz      
2014 11  15.162164 01 18 38.27   +04 30 16.3   22.1i 14UB225   W84  C~1x8m      
2014 11  16.140486 01 18 34.81   +04 29 58.1   22.7r 14UB225   W84  C~39oz      
2014 11  16.140995 01 18 34.80   +04 29 58.4   22.9r 14UB225   W84  C~1x8m      
2014 11  17.069525 01 18 31.58   +04 29 41.3   22.4z 14UB225   W84  C~39oz      
2014 11  17.070035 01 18 31.57   +04 29 41.7   22.4z 14UB225   W84  C~1x8m      
2014 11  18.126632 01 18 27.94   +04 29 22.6   22.1z 14UB225   W84  C~39oz      
2014 11  18.127153 01 18 27.93   +04 29 22.8   22.4z 14UB225   W84  C~1x8m      
2019 11  27.158150 01 40 19.417  +06 41 59.86  22.7G 14UB225   G37  C~4A4z      
2019 11  27.220670 01 40 19.176  +06 41 59.62        14UB225   G37  C~4A4z      
2020 09  21.427550 01 49 14.898  +07 33 05.69  22.8G 14UB225   G37  C~4A4z      
2020 09  21.464740 01 49 14.760  +07 33 04.95        14UB225   G37  C~4A4z      
2020 10  20.266670 01 47 16.995  +07 21 28.95  22.6G 14UB225   G37  C~4Kxo      
2020 10  20.319880 01 47 16.759  +07 21 27.50        14UB225   G37  C~4Kxo      
2023 12  08.373847 01 57 37.920  +08 24 05.23  22.6w 14UB225   F51  C~7bK2      
2023 12  08.386500 01 57 37.865  +08 24 05.12  22.5w 14UB225   F51  C~7bK2      
2023 12  08.411874 01 57 37.787  +08 24 04.47  22.5w 14UB225   F51  C~7bK2      

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     0.19       0.00     0.02
     2   0.0000      0.00    -0.00       0.00     0.01
     3   0.0000      0.00     0.11       0.00     0.00
     4   0.0000      0.00    -0.07       0.00    -0.10
     5   0.0000      0.00    -0.10       0.00    -0.51
     6   0.0000      0.00     0.33       0.00    -0.11
     7   0.0000      0.00     0.00       0.00    -0.02
     8   0.0000      0.00    -0.17       0.00    -0.02
     9   0.0000      0.00     0.26       0.00    -0.02
    10   0.0000      0.00     0.07       0.00    -0.23
    11   0.0000      0.00     0.02       0.00    -0.04
    12   0.0001      0.00    -0.03       0.00    -0.35
    13   0.3063      0.00    -0.52       0.00    -0.13
    14   0.3063      0.00     0.01       0.00    -0.10
    15   0.3090      0.00    -0.01       0.00    -0.00
    16   0.3090      0.00    -0.28       0.00     0.31
    17   0.3117      0.00     0.07       0.00    -0.02
    18   0.3117      0.00    -0.04       0.00     0.29
    19   0.3551      0.00     0.14       0.00    -0.09
    20   0.3551      0.00     0.11       0.00    -0.09
    21   0.3551      0.00    -0.01       0.00     0.22
    22   0.3578      0.00    -0.14       0.00    -0.23
    23   0.3581      0.00     0.12       0.00     0.04
    24   0.3581      0.00    -0.00       0.00     0.35
    25   0.3608      0.00    -0.03       0.00     0.10
    26   0.3608      0.00    -0.15       0.00     0.41
    27   0.3633      0.00     0.09       0.00     0.02
    28   0.3633      0.00    -0.03       0.00     0.43
    29   0.3662      0.00     0.12       0.00    -0.06
    30   0.3662      0.00    -0.01       0.00     0.15
    31   5.3903      0.00     0.22       0.00    -0.66
    32   5.3904      0.00    -0.26       0.00     0.06
    33   6.2096      0.00     0.05       0.00    -0.00
    34   6.2097      0.00     0.04       0.00     0.10
    35   6.2886      0.00     0.10       0.00     0.19
    36   6.2887      0.00     0.08       0.00     0.04
    37   9.4210      0.00     0.13       0.00     0.10
    38   9.4210      0.00    -0.13       0.00     0.14
    39   9.4211      0.00    -0.17       0.00    -0.19

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.

14UB225    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.087    44.087    44.087
ecceobj         0.058     0.058     0.058
incobj          3.464     3.464     3.464
qmin           40.640    40.643    40.638
qmax           47.172    47.170    47.174
amean          43.819    43.819    43.819
amin           43.475    43.475    43.473
amax           44.170    44.170    44.185
emean           0.051     0.051     0.051
emin            0.035     0.035     0.034
emax            0.069     0.069     0.069
imean           1.869     1.869     1.869
imin            1.126     1.125     1.125
imax            2.519     2.519     2.519
excite_mean     0.062     0.062     0.062
fracstop        1.000     1.000     1.000
cjmean          3.095     3.095     3.095

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       181.2     181.2     181.3
kozaiamp        180.0     180.0     180.0