Orbit Fit and Astrometric record for 14UN225

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: 14UN225   
# Created Sat Dec  4 02:12:51 2021
# Orbit generated from Bernstein formalism
# Fitting     68 observations of     68
# Arc:   4.15y
# First observation: 2014/09/12
#  Last observation: 2018/11/07
Preliminary a, adot, b, bdot, g, gdot:
   0.000154   0.019246  -0.000355  -0.008430   0.022117   0.000000
# Chi-squared of fit:    12.83 DOF:    130 RMS:  0.08
# Min/Max residuals:    -0.16    0.26
# Exact a, adot, b, bdot, g, gdot:
  1.401417E-05  1.898122E-02 -5.550263E-06 -8.385582E-03  2.152350E-02 -6.322253E-03
# Covariance matrix:
  7.3040E-14 -3.5011E-14 -4.9392E-14  1.4557E-14  9.5533E-14 -2.0296E-13
 -3.5011E-14  1.1760E-13  1.4160E-15 -3.7785E-14  2.0545E-14  1.7320E-12
 -4.9392E-14  1.4160E-15  1.1676E-13 -2.6883E-14 -1.5852E-13 -1.8701E-13
  1.4557E-14 -3.7785E-14 -2.6883E-14  2.8411E-14  1.6022E-14 -5.9486E-13
  9.5533E-14  2.0545E-14 -1.5852E-13  1.6022E-14  3.2574E-13  7.6670E-13
 -2.0296E-13  1.7320E-12 -1.8701E-13 -5.9486E-13  7.6670E-13  2.9257E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -50.214764  -51.240910   -0.652644   -0.591361   -0.492620  2456912.648468
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          322.04992 +/-     0.016
Argument of Peri:      323.94698 +/-     0.021
Long of Asc Node:       68.74620 +/-     0.000
Inclination:            53.16701 +/-     0.000
Eccentricity:         0.34487731 +/-    0.0003
Semi-Major Axis:     58.93061924 +/-    0.0153
Time of Perihelion: 2474329.3748 +/-       2.4
Perihelion:          38.60678551 +/-    0.0192
Aphelion:            79.25445298 +/-    0.0263
Period (y)              452.3970 +/-      0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           19.60170017 +/-    0.0005
Ecliptic Y          -23.37329250 +/-    0.0006
Ecliptic Z          -35.70293472 +/-    0.0009
Ecliptic XDOT         0.00104269 +/-    0.0000
Ecliptic YDOT         0.00254755 +/-    0.0000
Ecliptic ZDOT        -0.00006447 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   46.95995101 +/-    0.0008
Geocenter to KBO     46.46084124 +/-    0.0012
# Hcoef:  5.46

The following table shows the complete astrometric record for 14UN225. 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 (14UN225) followed by the observatory code and reference code for the source of the astrometry.

2014 09  12.14769  22 36 48.985  -64 37 31.72  21.9Y 14UN225   W84  C~4yUy      
2014 10  21.11912  22 32 04.249  -64 23 19.06  22.1i 14UN225   W84  C~4yUy      
2014 10  21.11912  22 32 04.25   -64 23 19.1   22.1i 14UN225   W84  C~3coL      
2014 10  22.014201 22 31 59.88   -64 22 41.4   22.2r 14UN225   W84  C~352R      
2014 10  22.014722 22 31 59.86   -64 22 41.3         14UN225   W84  C~2HPR      
2014 10  22.01473  22 31 59.877  -64 22 41.42  22.1r 14UN225   W84  C~4yUy      
2014 10  22.01473  22 31 59.88   -64 22 41.4   22.2r 14UN225   W84  C~3coL      
2014 10  22.080139 22 31 59.53   -64 22 38.4         14UN225   W84  C~2HPR      
2014 10  22.08014  22 31 59.558  -64 22 38.59  23.2g 14UN225   W84  C~4yUy      
2014 10  22.08014  22 31 59.56   -64 22 38.6   23.3g 14UN225   W84  C~3coL      
2014 10  22.08153  22 31 59.551  -64 22 38.63  22.2i 14UN225   W84  C~4yUy      
2014 10  22.08153  22 31 59.55   -64 22 38.6   22.3i 14UN225   W84  C~3coL      
2014 10  23.16158  22 31 54.444  -64 21 52.12  23.0g 14UN225   W84  C~4yUy      
2014 10  23.16158  22 31 54.44   -64 21 52.1   23.0g 14UN225   W84  C~3coL      
2014 10  27.026157 22 31 37.72   -64 18 58.0   22.2r 14UN225   W84  C~2HPR      
2014 10  27.02617  22 31 37.743  -64 18 58.12  22.2r 14UN225   W84  C~4yUy      
2014 10  27.02617  22 31 37.74   -64 18 58.1   22.3r 14UN225   W84  C~3coL      
2014 10  28.057569 22 31 33.64   -64 18 09.5   21.7z 14UN225   W84  C~2HPR      
2014 10  28.05758  22 31 33.668  -64 18 09.58  21.8z 14UN225   W84  C~4yUy      
2014 10  28.05758  22 31 33.67   -64 18 09.6   22.0z 14UN225   W84  C~3coL      
2014 10  28.058947 22 31 33.63   -64 18 09.4   22.2r 14UN225   W84  C~2HPR      
2014 10  28.05895  22 31 33.664  -64 18 09.48  22.4r 14UN225   W84  C~4yUy      
2014 10  28.05895  22 31 33.66   -64 18 09.5   22.4r 14UN225   W84  C~3coL      
2014 10  28.059803 22 31 33.67   -64 18 09.5   21.8i 14UN225   W84  C~39oz      
2014 10  28.060324 22 31 33.65   -64 18 09.4   21.8i 14UN225   W84  C~2HPR      
2014 10  28.06033  22 31 33.667  -64 18 09.45  22.0i 14UN225   W84  C~4yUy      
2014 10  28.06033  22 31 33.67   -64 18 09.5   22.1i 14UN225   W84  C~3coL      
2014 10  28.06256  22 31 33.665  -64 18 09.18  22.7g 14UN225   W84  C~4yUy      
2014 10  28.06256  22 31 33.66   -64 18 09.2   23.0g 14UN225   W84  C~3coL      
2014 10  29.060000 22 31 29.91   -64 17 21.5   21.6z 14UN225   W84  C~39oz      
2014 10  29.060521 22 31 29.90   -64 17 21.2   21.6z 14UN225   W84  C~2HPR      
2014 10  29.06053  22 31 29.916  -64 17 21.46  21.6z 14UN225   W84  C~4yUy      
2014 10  29.06053  22 31 29.92   -64 17 21.5   21.7z 14UN225   W84  C~3coL      
2014 10  29.075231 22 31 29.84   -64 17 20.7   22.0i 14UN225   W84  C~352R      
2014 10  29.075752 22 31 29.82   -64 17 20.7   21.8i 14UN225   W84  C~2HPR      
2014 10  29.07576  22 31 29.842  -64 17 20.84  21.9i 14UN225   W84  C~4yUy      
2014 10  29.07576  22 31 29.84   -64 17 20.8   22.0i 14UN225   W84  C~3coL      
2014 11  13.027083 22 30 54.30   -64 04 01.3   23.1g 14UN225   W84  C~2HPR      
2014 11  13.02709  22 30 54.336  -64 04 01.47  23.2g 14UN225   W84  C~4yUy      
2014 11  13.02709  22 30 54.34   -64 04 01.5   23.1g 14UN225   W84  C~3coL      
2015 11  08.01485  22 41 34.000  -63 54 37.02  21.9i 14UN225   W84  C~4yUy      
2015 11  08.01485  22 41 34.00   -63 54 37.0   21.9i 14UN225   W84  C~3coL      
2016 09  29.112269 22 55 49.68   -64 00 45.2   21.8i 14UN225   W84  C~2HPR      
2016 09  29.11228  22 55 49.704  -64 00 45.34  21.7i 14UN225   W84  C~4yUy      
2016 09  29.11228  22 55 49.70   -64 00 45.3   21.8i 14UN225   W84  C~3coL      
2016 09  29.113646 22 55 49.66   -64 00 45.2   22.0r 14UN225   W84  C~2HPR      
2016 09  29.11365  22 55 49.693  -64 00 45.31  22.0r 14UN225   W84  C~4yUy      
2016 09  29.11365  22 55 49.69   -64 00 45.3   22.1r 14UN225   W84  C~3coL      
2016 09  29.115023 22 55 49.66   -64 00 45.2   22.9g 14UN225   W84  C~2HPR      
2016 09  29.11503  22 55 49.684  -64 00 45.32  22.9g 14UN225   W84  C~4yUy      
2016 09  29.11503  22 55 49.68   -64 00 45.3   22.9g 14UN225   W84  C~3coL      
2016 09  30.115833 22 55 41.58   -64 00 28.9   21.7z 14UN225   W84  C~2HPR      
2016 09  30.11584  22 55 41.603  -64 00 29.04  21.5z 14UN225   W84  C~4yUy      
2016 09  30.11584  22 55 41.60   -64 00 29.0   21.7z 14UN225   W84  C~3coL      
2016 11  02.04828  22 52 19.372  -63 41 39.01  21.9i 14UN225   W84  C~4yUy      
2016 11  02.04828  22 52 19.37   -63 41 39.0   21.9i 14UN225   W84  C~3coL      
2017 08  18.250567 23 12 30.99   -63 31 10.2   21.9i 14UN225   W84  C~352R      
2017 08  18.25109  23 12 31.001  -63 31 10.18  21.9i 14UN225   W84  C~4yUy      
2017 08  18.257755 23 12 30.94   -63 31 10.3   22.2r 14UN225   W84  C~352R      
2017 08  18.25829  23 12 30.949  -63 31 10.36  22.1r 14UN225   W84  C~4yUy      
2017 08  18.259120 23 12 30.93   -63 31 10.4   23.0g 14UN225   W84  C~352R      
2017 08  18.25965  23 12 30.938  -63 31 10.46  22.6g 14UN225   W84  C~4yUy      
2017 09  26.128079 23 06 50.89   -63 39 39.4   22.0z 14UN225   W84  C~352R      
2017 09  26.12860  23 06 50.886  -63 39 39.39  21.9z 14UN225   W84  C~4yUy      
2017 10  29.03867  23 03 03.090  -63 24 16.90  21.7z 14UN225   W84  C~4yUy      
2018 10  18.09137  23 14 28.639  -63 07 27.19  21.9z 14UN225   W84  C~4yUy      
2018 10  28.17971  23 13 27.380  -63 01 08.81  21.9i 14UN225   W84  C~4yUy      
2018 11  07.16431  23 12 40.771  -62 53 16.22  22.2r 14UN225   W84  C~4yUy      

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    -0.13
     2   0.1067  -1016.98     0.03    1752.73    -0.09
     3   0.1067  -1017.00     0.01    1752.69    -0.12
     4   0.1091  -1019.04    -0.00    1799.82    -0.00
     5   0.1091  -1019.09    -0.05    1799.97     0.13
     6   0.1092  -1019.07    -0.03    1799.81    -0.03
     7   0.1092  -1019.04     0.00    1799.82    -0.03
     8   0.1093  -1019.22    -0.01    1803.58     0.25
     9   0.1093  -1019.17     0.04    1803.30    -0.03
    10   0.1093  -1019.17     0.04    1803.32    -0.01
    11   0.1093  -1019.22    -0.01    1803.34    -0.06
    12   0.1093  -1019.23    -0.02    1803.31    -0.09
    13   0.1123  -1020.28     0.05    1860.44    -0.00
    14   0.1123  -1020.27     0.06    1860.41    -0.04
    15   0.1229  -1011.57    -0.01    2065.47     0.08
    16   0.1229  -1011.51     0.05    2065.29    -0.11
    17   0.1229  -1011.52     0.04    2065.32    -0.08
    18   0.1257  -1006.10    -0.16    2120.49     0.13
    19   0.1257  -1006.00    -0.05    2120.30    -0.06
    20   0.1257  -1006.00    -0.05    2120.32    -0.04
    21   0.1257  -1006.10    -0.16    2120.61     0.18
    22   0.1257  -1006.00    -0.06    2120.42    -0.02
    23   0.1257  -1005.96    -0.03    2120.42    -0.02
    24   0.1257  -1005.94    -0.01    2120.38    -0.10
    25   0.1257  -1005.99    -0.06    2120.54     0.03
    26   0.1257  -1005.94    -0.01    2120.38    -0.13
    27   0.1257  -1005.93    -0.00    2120.43    -0.08
    28   0.1257  -1005.83     0.09    2120.67     0.04
    29   0.1257  -1005.79     0.13    2120.67     0.03
    30   0.1284   -999.07     0.05    2173.82     0.01
    31   0.1284   -998.95     0.17    2174.11     0.26
    32   0.1284   -999.02     0.11    2173.79    -0.06
    33   0.1284   -999.01     0.11    2173.83    -0.01
    34   0.1285   -998.99     0.03    2174.74     0.10
    35   0.1285   -999.10    -0.08    2174.81     0.15
    36   0.1285   -999.05    -0.03    2174.66    -0.01
    37   0.1285   -999.06    -0.04    2174.62    -0.05
    38   0.1694   -740.84    -0.12    2966.27     0.20
    39   0.1694   -740.74    -0.02    2965.95    -0.11
    40   0.1694   -740.74    -0.03    2965.99    -0.07
    41   1.1550   3016.29     0.10     988.59    -0.08
    42   1.1550   3016.28     0.09     988.58    -0.09
    43   2.0478   7218.62    -0.03   -2786.63     0.15
    44   2.0478   7218.65     0.01   -2786.79    -0.01
    45   2.0478   7218.65     0.01   -2786.84    -0.05
    46   2.0478   7218.52    -0.08   -2786.55     0.17
    47   2.0478   7218.60     0.00   -2786.75    -0.03
    48   2.0478   7218.61     0.01   -2786.77    -0.05
    49   2.0478   7218.52    -0.04   -2786.55     0.11
    50   2.0478   7218.55    -0.00   -2786.71    -0.05
    51   2.0478   7218.56     0.00   -2786.74    -0.08
    52   2.0506   7188.09    -0.02   -2739.99     0.19
    53   2.0506   7188.13     0.02   -2740.15     0.03
    54   2.0506   7188.12     0.00   -2740.19    -0.02
    55   2.1407   6871.69    -0.02   -1017.24    -0.01
    56   2.1407   6871.70    -0.01   -1017.25    -0.03
    57   2.9325  13374.51    -0.11   -5885.26     0.00
    58   2.9325  13374.58    -0.01   -5885.29    -0.04
    59   2.9325  13374.20     0.04   -5885.10     0.06
    60   2.9325  13374.20     0.07   -5885.18    -0.03
    61   2.9325  13374.08     0.01   -5885.13     0.02
    62   2.9325  13374.08     0.04   -5885.21    -0.07
    63   3.0390  11357.41     0.02   -4708.41    -0.01
    64   3.0390  11357.40     0.02   -4708.38    -0.01
    65   3.1291  10836.23     0.01   -3001.82     0.01
    66   4.0984  14938.54     0.01   -5405.84    -0.02
    67   4.1260  14900.06    -0.05   -4842.82    -0.03
    68   4.1534  14996.45     0.01   -4279.79     0.00

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.

14UN225    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        59.524    59.566    59.481
ecceobj         0.350     0.351     0.349
incobj         53.226    53.226    53.226
qmin           37.590    37.644    37.223
qmax           81.904    81.784    82.294
amean          59.269    59.314    59.221
amin           58.701    58.735    58.640
amax           60.004    60.030    60.023
emean           0.343     0.344     0.344
emin            0.332     0.333     0.329
emax            0.366     0.363     0.371
imean          51.965    51.971    51.941
imin           51.534    51.567    51.434
imax           52.329    52.324    52.354
excite_mean     0.859     0.859     0.859
fracstop        1.000     1.000     1.000
cjmean          2.132     2.132     2.132

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       148.9     153.0     140.0
kozaiamp        180.0     180.0     180.0