Orbit Fit and Astrometric record for 14OW393

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: 14OW393   
# Created Fri Dec  3 02:12:29 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     18 observations of     18
# Arc:   7.10y
# First observation: 2013/07/08
#  Last observation: 2020/08/12
# Chi-squared of fit:     7.75 DOF:     30 RMS:  0.12
# Min/Max residuals:    -0.31    0.23
# Exact a, adot, b, bdot, g, gdot:
  2.571925E-05  9.678477E-02  1.053688E-05  3.953850E-02  6.017393E-02  4.400265E-02
# Covariance matrix:
  4.3347E-13 -4.2589E-13  1.1700E-13 -1.6593E-13 -6.4126E-15 -6.7053E-13
 -4.2589E-13  1.2080E-12 -3.3394E-13  4.8416E-13  1.0910E-12  1.9438E-12
  1.1700E-13 -3.3394E-13  2.4143E-13 -1.7586E-13 -2.9187E-13 -5.5106E-13
 -1.6593E-13  4.8416E-13 -1.7586E-13  2.2546E-13  4.3132E-13  7.9819E-13
 -6.4126E-15  1.0910E-12 -2.9187E-13  4.3132E-13  1.7794E-12  1.7221E-12
 -6.7053E-13  1.9438E-12 -5.5106E-13  7.9819E-13  1.7221E-12  3.2055E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.169945  -64.510887    0.164438    0.020543   -1.005549  2456481.946428
# Heliocentric elements and errors
Epoch:              2456482.5000  =  2013/07/09
Mean Anomaly:           10.22456 +/-     0.003
Argument of Peri:      305.45358 +/-     0.004
Long of Asc Node:      292.25676 +/-     0.000
Inclination:            22.22870 +/-     0.000
Eccentricity:         0.65934728 +/-    0.0001
Semi-Major Axis:     42.23091652 +/-    0.0084
Time of Perihelion: 2453635.5076 +/-       1.2
Perihelion:          14.38607664 +/-    0.0037
Aphelion:            70.07575639 +/-    0.0141
Period (y)              274.4441 +/-      0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            7.43497787 +/-    0.0002
Ecliptic Y          -15.97375336 +/-    0.0003
Ecliptic Z            0.33955202 +/-    0.0000
Ecliptic XDOT         0.00481431 +/-    0.0000
Ecliptic YDOT         0.00012077 +/-    0.0000
Ecliptic ZDOT         0.00183960 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   17.62238409 +/-    0.0003
Geocenter to KBO     16.61833111 +/-    0.0004
# Hcoef:  9.65

The following table shows the complete astrometric record for 14OW393. 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 (14OW393) followed by the observatory code and reference code for the source of the astrometry.

2013 07  08.44565  19 48 54.990  -19 53 32.10  22.4w 14OW393   F51  C~3xr3      
2013 07  08.45963  19 48 54.831  -19 53 32.22  22.3w 14OW393   F51  C~3xr3      
2013 07  08.47299  19 48 54.704  -19 53 32.14  22.2w 14OW393   F51  C~3xr3      
2014 07  25.42729  20 06 07.059  -16 46 29.27  22.6w 14OW393   F51  C~1vXe      
2014 07  25.43926  20 06 06.932  -16 46 29.36  22.3w 14OW393   F51  C~1vXe      
2014 07  25.45127  20 06 06.810  -16 46 29.46  22.3w 14OW393   F51  C~1vXe      
2014 08  03.38020  20 04 33.837  -16 48 21.52  22.3w 14OW393   F51  C~1vXe      
2014 08  03.39205  20 04 33.697  -16 48 21.38  22.3w 14OW393   F51  C~1vXe      
2014 08  03.40391  20 04 33.583  -16 48 21.55  22.6w 14OW393   F51  C~1vXe      
2014 08  03.41576  20 04 33.459  -16 48 21.75  22.7w 14OW393   F51  C~1vXe      
2014 08  20.480073 20 01 50.17   -16 51 52.8         14OW393   568  C~3xr3      
2014 08  20.481408 20 01 50.16   -16 51 52.8         14OW393   568  C~3xr3      
2014 08  20.482661 20 01 50.15   -16 51 52.9         14OW393   568  C~3xr3      
2014 09  20.25153  19 58 34.925  -16 55 30.73  22.2w 14OW393   F51  C~1vXe      
2014 09  20.26253  19 58 34.887  -16 55 30.51  22.6w 14OW393   F51  C~1vXe      
2014 09  20.27349  19 58 34.848  -16 55 30.75  22.3w 14OW393   F51  C~1vXe      
2020 08  12.241830 21 28 30.846  -01 38 47.26  23.5G 14OW393   G37  C~443G      
2020 08  12.291190 21 28 30.426  -01 38 48.44        14OW393   G37  C~443G      

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    -0.04
     2   0.0000      0.00    -0.10       0.00    -0.09
     3   0.0001      0.00     0.23       0.00     0.06
     4   1.0458      0.00    -0.08       0.00    -0.01
     5   1.0458      0.00    -0.05       0.00     0.05
     6   1.0459      0.00     0.05       0.00     0.09
     7   1.0703      0.00     0.07       0.00    -0.31
     8   1.0704      0.00    -0.17       0.00    -0.02
     9   1.0704      0.00    -0.02       0.00    -0.04
    10   1.0704      0.00    -0.03       0.00    -0.09
    11   1.1171      0.00     0.15       0.00     0.09
    12   1.1171      0.00     0.17       0.00     0.11
    13   1.1171      0.00     0.19       0.00     0.02
    14   1.2014      0.00    -0.13       0.00    -0.01
    15   1.2014      0.00    -0.08       0.00     0.23
    16   1.2014      0.00    -0.05       0.00    -0.00
    17   7.0960      0.00     0.09       0.00    -0.12
    18   7.0961      0.00    -0.09       0.00     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.

14OW393    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        41.957    41.956    41.958
ecceobj         0.657     0.657     0.657
incobj         22.206    22.206    22.206
qmin           13.585    13.413    13.841
qmax           74.013    74.445    75.934
amean          42.630    40.856    43.482
amin           41.681    37.474    41.958
amax           44.059    44.180    45.316
emean           0.670     0.659     0.673
emin            0.655     0.623     0.657
emax            0.684     0.685     0.685
imean          22.515    23.099    22.561
imin           21.496    21.412    21.751
imax           24.753    25.718    24.241
excite_mean     0.771     0.767     0.775
fracstop        0.054     0.071     0.052
cjmean          2.339     2.349     2.335

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       180.7     154.2     170.1
kozaiamp        179.8     179.8     179.9