Orbit Fit and Astrometric record for 14UO231

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: 14UO231   
# Created Fri Mar 29 01:17:16 2024
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     25
# Arc:   4.00y
# First observation: 2013/09/01
#  Last observation: 2017/08/31
Preliminary a, adot, b, bdot, g, gdot:
  -0.000050   0.019221   0.000025  -0.008069   0.021641   0.000000
# Chi-squared of fit:    13.26 DOF:     44 RMS:  0.13
# Min/Max residuals:    -0.31    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.322658E-05  1.897434E-02 -6.198566E-06 -7.980564E-03  2.140916E-02 -3.688522E-03
# Covariance matrix:
  1.9508E-13 -1.0382E-13 -1.2109E-14  2.2602E-14  6.0692E-14 -7.3077E-13
 -1.0382E-13  2.0121E-13  3.8648E-14 -7.6171E-14  1.0478E-13  2.5002E-12
 -1.2109E-14  3.8648E-14  1.4607E-13 -7.7418E-14  2.3693E-14  6.1435E-13
  2.2602E-14 -7.6171E-14 -7.7418E-14  8.0732E-14 -4.9209E-14 -1.2104E-12
  6.0692E-14  1.0478E-13  2.3693E-14 -4.9209E-14  2.5039E-13  1.6372E-12
 -7.3077E-13  2.5002E-12  6.1435E-13 -1.2104E-12  1.6372E-12  3.9726E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
    4.082826   25.091133    0.728827    0.049865   -0.697844  2456537.022598
# Heliocentric elements and errors
Epoch:              2456530.5000  =  2013/08/26
Mean Anomaly:          318.78948 +/-     0.019
Argument of Peri:      233.67984 +/-     0.041
Long of Asc Node:      213.68461 +/-     0.000
Inclination:            23.13213 +/-     0.001
Eccentricity:         0.24066920 +/-    0.0003
Semi-Major Axis:     55.64496761 +/-    0.0101
Time of Perihelion: 2473886.2272 +/-       6.2
Perihelion:          42.25293799 +/-    0.0185
Aphelion:            69.03699722 +/-    0.0210
Period (y)              415.0946 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.13609023 +/-    0.0010
Ecliptic Y           19.39678553 +/-    0.0005
Ecliptic Z            3.32534114 +/-    0.0001
Ecliptic XDOT        -0.00139545 +/-    0.0000
Ecliptic YDOT         0.00202771 +/-    0.0000
Ecliptic ZDOT        -0.00105143 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.41324143 +/-    0.0009
Geocenter to KBO     46.70897512 +/-    0.0011
# Hcoef:  8.25

The following table shows the complete astrometric record for 14UO231. 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 (14UO231) followed by the observatory code and reference code for the source of the astrometry.

2013 09  01.52182  01 26 51.642  +13 30 27.78  25.4r 14UO231   568  C~2Yin      
2013 09  02.50900  01 26 48.967  +13 30 11.24  24.5r 14UO231   568  C~2Yin      
2013 09  02.55864  01 26 48.801  +13 30 10.60  24.7r 14UO231   568  C~2Yin      
2013 10  31.36365  01 23 10.014  +13 05 29.52  25.2r 14UO231   568  C~2Yin      
2013 11  01.34875  01 23 06.167  +13 05 00.63  25.2r 14UO231   568  C~2Yin      
2013 11  01.43956  01 23 05.816  +13 04 57.99  24.2r 14UO231   568  C~2Yin      
2013 12  04.34687  01 21 20.302  +12 50 16.72  24.7r 14UO231   568  C~2Yin      
2014 07  25.52072  01 32 32.918  +13 33 54.13  24.3r 14UO231   568  C~2Yin      
2014 08  23.60725  01 32 05.045  +13 31 10.20  25.3r 14UO231   568  C~2Yin      
2014 08  27.44876  01 31 56.780  +13 30 19.22  25.4r 14UO231   568  C~2Yin      
2014 08  27.54519  01 31 56.553  +13 30 17.93  25.0r 14UO231   568  C~2Yin      
2014 09  18.37931  01 30 52.879  +13 23 36.71  24.7r 14UO231   568  C~2Yin      
2014 09  23.46479  01 30 34.736  +13 21 39.29  25.0r 14UO231   568  C~2Yin      
2014 10  22.42489  01 28 39.593  +13 08 36.96  24.9r 14UO231   568  C~2Yin      
2014 10  22.46432  01 28 39.426  +13 08 36.02  24.6r 14UO231   568  C~2Yin      
2014 10  22.50375  01 28 39.265  +13 08 34.61  24.4r 14UO231   568  C~2Yin      
2014 11  19.23322  01 26 54.444  +12 55 24.30  24.7r 14UO231   568  C~2Yin      
2015 09  15.51501  01 35 58.165  +13 22 54.27  25.2w 14UO231   568  C~2Yin      
2015 09  15.57437  01 35 57.958  +13 22 52.84  25.5w 14UO231   568  C~2Yin      
2015 10  13.48307  01 34 12.361  +13 11 13.69        14UO231   568  C~2Yin      
2015 10  13.54938  01 34 12.094  +13 11 11.94        14UO231   568  C~2Yin      
2015 12  07.45744  01 30 56.096  +12 46 24.60  25.1w 14UO231   568  C~2Yin      
2017 01  31.22024  01 35 36.236  +12 35 21.83  26.1w 14UO231   568  C~2Yin      
2017 08  25.62062  01 46 46.361  +13 23 51.60  25.6w 14UO231   568  C~2Yin      
2017 08  31.60422  01 46 33.533  +13 22 25.61  25.3w 14UO231   568  C~2Yin      

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     0.16       0.00     0.06
     2   0.0027    -42.37    -0.02      -0.91    -0.12
     3   0.0028    -44.85    -0.31      -0.60     0.20
     4   0.1638  -3560.82     0.23    -186.40     0.11
     5   0.1665  -3623.77    -0.06    -192.17     0.11
     6   0.1668  -3629.51     0.05    -192.70     0.08
     7   0.2569  -5390.63    -0.01    -431.75    -0.04
     8   0.8953   4704.90     0.00   -1638.90    -0.14
     9   0.9749   4266.41     0.22   -1642.98     0.33
    10   0.9854   4135.52    -0.03   -1646.35    -0.06
    11   0.9857   4131.96    -0.01   -1646.34    -0.01
    12   1.0455   3120.30    -0.14   -1679.47    -0.20
    13   1.0594   2830.85     0.02   -1691.56    -0.09
    14   1.1387    979.56     0.03   -1800.47    -0.14
    15   1.1388    976.95     0.07   -1800.45     0.07
    16   1.1389    974.24     0.01   -1800.89    -0.19
    17   1.2148   -741.29    -0.22   -1969.03    -0.03
    18   2.0369   7256.91     0.08   -3343.33     0.10
    19   2.0371   7253.57    -0.08   -3343.57    -0.02
    20   2.1135   5561.54    -0.20   -3435.53    -0.05
    21   2.1137   5557.27    -0.04   -3435.74     0.01
    22   2.2640   2345.46     0.26   -3773.82    -0.14
    23   3.4160   5924.24    -0.11   -5888.16     0.02
    24   3.9811  16148.48     0.11   -6678.27     0.07
    25   3.9975  15941.67    -0.02   -6692.72     0.09

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.

14UO231    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        55.952    55.979    55.925
ecceobj         0.241     0.242     0.240
incobj         23.080    23.080    23.079
qmin           41.103    40.827    41.126
qmax           70.823    70.835    70.829
amean          55.460    55.465    55.461
amin           54.792    54.799    54.827
amax           56.251    56.230    56.281
emean           0.240     0.240     0.240
emin            0.225     0.219     0.225
emax            0.259     0.262     0.259
imean          23.630    23.661    23.632
imin           23.266    23.157    23.267
imax           23.923    24.141    23.898
excite_mean     0.467     0.468     0.467
fracstop        1.000     1.000     1.000
cjmean          2.957     2.956     2.957

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       193.0     177.3     194.6
kozaiamp        180.0     180.0     180.0