Orbit Fit and Astrometric record for 14UJ225

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: 14UJ225   
# Created Sat Dec  4 02:12:51 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     58 observations of     58
# Arc:   5.11y
# First observation: 2012/10/08
#  Last observation: 2017/11/18
# Chi-squared of fit:    27.97 DOF:    110 RMS:  0.12
# Min/Max residuals:    -0.35    0.45
# Exact a, adot, b, bdot, g, gdot:
  2.115104E-05  7.807258E-02  9.069893E-06  3.042091E-02  5.612964E-02 -2.921484E-02
# Covariance matrix:
  1.2287E-13 -8.6397E-14  2.3534E-14 -2.6513E-14 -5.5607E-15 -1.2558E-13
 -8.6397E-14  8.7081E-14 -2.7296E-14  3.0812E-14  1.8486E-14  1.4516E-13
  2.3534E-14 -2.7296E-14  7.0774E-14 -2.7804E-14 -7.8860E-15 -4.9866E-14
 -2.6513E-14  3.0812E-14 -2.7804E-14  1.9463E-14  9.3123E-15  5.6312E-14
 -5.5607E-15  1.8486E-14 -7.8860E-15  9.3123E-15  8.7556E-14  3.8552E-14
 -1.2558E-13  1.4516E-13 -4.9866E-14  5.6312E-14  3.8552E-14  2.6498E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.332292   19.990510    0.082113    0.005790   -0.993309  2456208.932448
# Heliocentric elements and errors
Epoch:              2456208.5000  =  2012/10/08
Mean Anomaly:          319.39108 +/-     0.002
Argument of Peri:       81.66034 +/-     0.002
Long of Asc Node:       18.93775 +/-     0.000
Inclination:            21.29853 +/-     0.000
Eccentricity:         0.38055952 +/-    0.0000
Semi-Major Axis:     23.33719544 +/-    0.0006
Time of Perihelion: 2460853.5500 +/-       1.5
Perihelion:          14.45600355 +/-    0.0005
Aphelion:            32.21838732 +/-    0.0009
Period (y)              112.7408 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           17.70541413 +/-    0.0001
Ecliptic Y            6.35559764 +/-    0.0000
Ecliptic Z            0.10348786 +/-    0.0000
Ecliptic XDOT        -0.00265503 +/-    0.0000
Ecliptic YDOT         0.00309087 +/-    0.0000
Ecliptic ZDOT         0.00147569 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   18.81200623 +/-    0.0001
Geocenter to KBO     17.81608653 +/-    0.0001
# Hcoef: 10.51

The following table shows the complete astrometric record for 14UJ225. 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 (14UJ225) followed by the observatory code and reference code for the source of the astrometry.

2012 10  08.43167  01 13 19.322  +08 07 24.04  22.2G 14UJ225   F51  C~2r7X      
2012 10  09.35267  01 13 10.017  +08 06 44.83  22.6G 14UJ225   F51  C~2r7X      
2012 10  09.36679  01 13 09.877  +08 06 44.61  22.8G 14UJ225   F51  C~2r7X      
2012 10  09.38101  01 13 09.732  +08 06 43.49  23.3G 14UJ225   F51  C~2r7X      
2012 10  09.39532  01 13 09.572  +08 06 43.01  23.9G 14UJ225   F51  C~2r7X      
2012 11  04.25335  01 08 55.317  +07 48 50.04  23.0G 14UJ225   F51  C~2r7X      
2012 11  04.26745  01 08 55.179  +07 48 49.61  23.0G 14UJ225   F51  C~2r7X      
2012 11  04.28155  01 08 55.057  +07 48 49.00  22.9G 14UJ225   F51  C~2r7X      
2012 11  04.29574  01 08 54.924  +07 48 48.46  23.1G 14UJ225   F51  C~2r7X      
2013 09  01.54512  01 33 24.666  +11 47 59.49  23.2r 14UJ225   568  C~2WZw      
2013 09  01.58399  01 33 24.412  +11 47 59.04  23.0r 14UJ225   568  C~2WZw      
2013 09  02.54308  01 33 18.209  +11 47 46.30  23.2r 14UJ225   568  C~2WZw      
2013 10  05.41755  01 28 32.200  +11 32 39.38  23.2G 14UJ225   F51  C~2r7X      
2013 10  09.38918  01 27 51.228  +11 30 02.91  22.9r 14UJ225   568  C~2WZw      
2013 10  29.45275  01 24 21.930  +11 16 00.77  22.8r 14UJ225   568  C~2WZw      
2013 10  30.36505  01 24 12.683  +11 15 22.29  22.7r 14UJ225   568  C~2WZw      
2013 10  31.35588  01 24 02.686  +11 14 40.73  23.1r 14UJ225   568  C~2WZw      
2013 11  01.30170  01 23 53.201  +11 14 01.16  23.3r 14UJ225   568  C~2WZw      
2013 11  01.34074  01 23 52.803  +11 13 59.60  23.0r 14UJ225   568  C~2WZw      
2013 11  01.42897  01 23 51.901  +11 13 55.85  23.0r 14UJ225   568  C~2WZw      
2013 11  26.24295  01 20 15.301  +10 58 53.98  23.3G 14UJ225   F51  C~2r7X      
2013 11  27.36654  01 20 07.404  +10 58 22.33  23.0r 14UJ225   568  C~2WZw      
2013 12  29.30196  01 18 02.802  +10 52 08.88  22.8r 14UJ225   568  C~2WZw      
2014 07  26.54156  01 50 34.382  +15 02 40.96  23.0r 14UJ225   568  C~2WZw      
2014 07  26.58476  01 50 34.450  +15 02 42.78  23.1r 14UJ225   568  C~2WZw      
2014 08  24.48198  01 49 57.028  +15 14 36.32  23.2r 14UJ225   568  C~2WZw      
2014 08  24.55192  01 49 56.714  +15 14 36.87  22.9r 14UJ225   568  C~2WZw      
2014 08  27.58992  01 49 42.719  +15 14 56.10  24.6u 14UJ225   568  C~2WZw      
2014 09  18.47464  01 47 13.071  +15 12 11.84  22.9r 14UJ225   568  C~2WZw      
2014 09  18.51737  01 47 12.696  +15 12 11.03  23.1r 14UJ225   568  C~2WZw      
2014 09  19.43202  01 47 04.804  +15 11 53.41  23.2G 14UJ225   F51  C~2r7X      
2014 09  23.45104  01 46 28.745  +15 10 27.17  22.9G 14UJ225   F51  C~2r7X      
2014 09  23.51567  01 46 28.113  +15 10 25.20  22.6r 14UJ225   568  C~2WZw      
2014 09  29.56361  01 45 30.175  +15 07 47.54  22.8G 14UJ225   F51  C~2r7X      
2014 10  01.54237  01 45 10.400  +15 06 49.85  23.0G 14UJ225   F51  C~2r7X      
2014 10  01.55509  01 45 10.292  +15 06 49.07  23.0G 14UJ225   F51  C~2r7X      
2014 10  22.29873  01 41 28.816  +14 54 15.70  23.0r 14UJ225   568  C~2Gdq      
2014 10  22.34444  01 41 28.310  +14 54 13.78  22.7r 14UJ225   568  C~2Gdq      
2014 10  22.38820  01 41 27.820  +14 54 12.06  22.6r 14UJ225   568  C~2Gdq      
2014 10  23.47137  01 41 15.933  +14 53 27.21  22.5r 14UJ225   568  C~2WZw      
2014 10  25.48732  01 40 53.860  +14 52 03.25  22.5r 14UJ225   568  C~2WZw      
2014 10  25.49471  01 40 53.784  +14 52 02.99  22.5G 14UJ225   F51  C~2r7X      
2014 11  18.27389  01 36 50.103  +14 35 27.79  22.4G 14UJ225   F51  C~2r7X      
2014 11  20.35900  01 36 31.242  +14 34 06.55  23.0r 14UJ225   568  C~2WZw      
2014 11  21.25530  01 36 23.345  +14 33 32.23  23.2r 14UJ225   568  C~2WZw      
2014 11  21.42173  01 36 21.855  +14 33 25.93  23.2r 14UJ225   568  C~2WZw      
2015 02  19.23943  01 36 36.950  +14 42 53.88  23.1r 14UJ225   568  C~2WZw      
2017 08  04.57220  02 46 31.247  +25 39 31.65  23.6G 14UJ225   F51  C~2r7X      
2017 08  04.58449  02 46 31.294  +25 39 32.77  22.8G 14UJ225   F51  C~2r7X      
2017 08  04.59682  02 46 31.346  +25 39 33.20  23.4G 14UJ225   F51  C~2r7X      
2017 08  04.60927  02 46 31.373  +25 39 34.34  23.0G 14UJ225   F51  C~2r7X      
2017 09  02.47597  02 46 40.152  +26 07 10.28  22.1G 14UJ225   F51  C~2r7X      
2017 09  02.48631  02 46 40.102  +26 07 10.44  23.4G 14UJ225   F51  C~2r7X      
2017 09  02.50703  02 46 40.020  +26 07 11.76  22.2G 14UJ225   F51  C~2r7X      
2017 11  18.28218  02 33 56.306  +26 00 59.94  22.5G 14UJ225   F51  C~2r7X      
2017 11  18.29452  02 33 56.154  +26 00 59.18  23.0G 14UJ225   F51  C~2r7X      
2017 11  18.30691  02 33 56.012  +26 00 59.01  22.2G 14UJ225   F51  C~2r7X      
2017 11  18.31933  02 33 55.858  +26 00 58.60  22.2G 14UJ225   F51  C~2r7X      

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     0.20       0.00    -0.03
     2   0.0025      0.00    -0.04       0.00    -0.05
     3   0.0026      0.00     0.03       0.00     0.33
     4   0.0026      0.00     0.05       0.00    -0.19
     5   0.0026      0.00    -0.14       0.00    -0.06
     6   0.0734      0.00    -0.01       0.00     0.02
     7   0.0735      0.00    -0.13       0.00     0.12
     8   0.0735      0.00     0.00       0.00     0.03
     9   0.0735      0.00    -0.02       0.00     0.03
    10   0.8983      0.00    -0.05       0.00    -0.04
    11   0.8984      0.00    -0.02       0.00     0.01
    12   0.9011      0.00     0.00       0.00    -0.07
    13   0.9911      0.00    -0.04       0.00     0.24
    14   1.0019      0.00     0.13       0.00    -0.06
    15   1.0569      0.00    -0.01       0.00    -0.07
    16   1.0594      0.00    -0.04       0.00    -0.09
    17   1.0621      0.00     0.04       0.00    -0.03
    18   1.0647      0.00    -0.01       0.00    -0.04
    19   1.0648      0.00    -0.01       0.00     0.02
    20   1.0650      0.00    -0.04       0.00    -0.05
    21   1.1330      0.00     0.01       0.00    -0.03
    22   1.1360      0.00    -0.07       0.00    -0.04
    23   1.2235      0.00     0.01       0.00    -0.06
    24   1.7963      0.00     0.03       0.00    -0.04
    25   1.7964      0.00     0.01       0.00    -0.01
    26   1.8756      0.00    -0.01       0.00    -0.08
    27   1.8758      0.00    -0.02       0.00    -0.11
    28   1.8841      0.00    -0.09       0.00     0.24
    29   1.9440      0.00     0.01       0.00    -0.04
    30   1.9441      0.00     0.02       0.00    -0.05
    31   1.9466      0.00     0.06       0.00    -0.02
    32   1.9576      0.00     0.34       0.00     0.45
    33   1.9578      0.00     0.02       0.00    -0.02
    34   1.9744      0.00    -0.03       0.00    -0.11
    35   1.9798      0.00    -0.34       0.00     0.16
    36   1.9798      0.00    -0.00       0.00    -0.23
    37   2.0366      0.00    -0.09       0.00     0.07
    38   2.0367      0.00    -0.03       0.00     0.01
    39   2.0368      0.00    -0.05       0.00     0.08
    40   2.0398      0.00     0.06       0.00    -0.09
    41   2.0453      0.00     0.02       0.00    -0.09
    42   2.0453      0.00     0.10       0.00    -0.03
    43   2.1105      0.00     0.23       0.00     0.02
    44   2.1162      0.00    -0.03       0.00    -0.03
    45   2.1186      0.00    -0.08       0.00    -0.05
    46   2.1191      0.00    -0.05       0.00    -0.02
    47   2.3650      0.00     0.17       0.00    -0.03
    48   4.8217      0.00     0.09       0.00     0.08
    49   4.8218      0.00     0.11       0.00     0.30
    50   4.8218      0.00     0.20       0.00    -0.16
    51   4.8218      0.00    -0.09       0.00     0.08
    52   4.9009      0.00     0.06       0.00     0.10
    53   4.9009      0.00    -0.14       0.00    -0.18
    54   4.9010      0.00    -0.28       0.00     0.27
    55   5.1112      0.00    -0.07       0.00    -0.10
    56   5.1112      0.00    -0.05       0.00    -0.35
    57   5.1112      0.00     0.12       0.00    -0.00
    58   5.1113      0.00     0.13       0.00     0.10

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.

14UJ225    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        23.334    23.334    23.334
ecceobj         0.378     0.378     0.378
incobj         21.262    21.262    21.262
qmin           14.270    14.270    14.270
qmax           32.460    32.459    32.461
amean          23.246    23.246    23.145
amin           23.066    23.064    22.855
amax           23.537    23.537    23.537
emean           0.378     0.378     0.374
emin            0.373     0.373     0.360
emax            0.382     0.382     0.382
imean          21.466    21.467    21.525
imin           21.278    21.278    21.278
imax           21.617    21.619    21.705
excite_mean     0.526     0.526     0.524
fracstop        0.001     0.001     0.002
cjmean          2.802     2.802     2.806

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        89.4      89.4      92.3
kozaiamp          7.9       7.9       9.0