Orbit Fit and Astrometric record for 14WB556

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: 14WB556   
# Created Sat Dec  4 02:13:00 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     29 observations of     29
# Arc:   6.96y
# First observation: 2014/11/21
#  Last observation: 2021/11/05
# Chi-squared of fit:    12.23 DOF:     52 RMS:  0.11
# Min/Max residuals:    -0.50    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.966064E-05  2.818655E-02 -1.008278E-06 -1.945772E-03  2.262609E-02  5.639816E-03
# Covariance matrix:
  1.5905E-13 -1.0852E-13 -2.8242E-15  5.9776E-15 -2.6510E-14 -4.6127E-13
 -1.0852E-13  1.4389E-13  8.5167E-15 -1.0351E-14 -1.2178E-14  7.0013E-13
 -2.8242E-15  8.5167E-15  9.8455E-14 -2.2475E-14 -1.7260E-14  4.2229E-14
  5.9776E-15 -1.0351E-14 -2.2475E-14  1.1175E-14  5.5873E-15 -5.3562E-14
 -2.6510E-14 -1.2178E-14 -1.7260E-14  5.5873E-15  2.0940E-13 -3.3528E-14
 -4.6127E-13  7.0013E-13  4.2229E-14 -5.3562E-14 -3.3528E-14  3.6730E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.275930   14.988560   -0.679782   -0.294871   -0.654276  2456982.718308
# Heliocentric elements and errors
Epoch:              2456982.5000  =  2014/11/21
Mean Anomaly:            1.22031 +/-     0.002
Argument of Peri:      235.36006 +/-     0.007
Long of Asc Node:      114.98642 +/-     0.001
Inclination:            24.16402 +/-     0.000
Eccentricity:         0.84535292 +/-    0.0001
Semi-Major Axis:    276.21512244 +/-    0.2589
Time of Perihelion: 2451298.7293 +/-      11.4
Perihelion:          42.71586239 +/-    0.0566
Aphelion:           509.71438249 +/-    0.4795
Period (y)             4590.7049 +/-      6.45
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.43250197 +/-    0.0008
Ecliptic Y           11.26387280 +/-    0.0002
Ecliptic Z          -18.17078297 +/-    0.0004
Ecliptic XDOT        -0.00037891 +/-    0.0000
Ecliptic YDOT         0.00342551 +/-    0.0000
Ecliptic ZDOT        -0.00049510 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.85485241 +/-    0.0007
Geocenter to KBO     44.19663205 +/-    0.0009
# Hcoef:  7.17

The following table shows the complete astrometric record for 14WB556. 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 (14WB556) followed by the observatory code and reference code for the source of the astrometry.

2014 11  21.21753  01 33 20.066  -16 27 53.37  23.4r 14WB556   W84  C~4yVK      
2014 11  21.21753  01 33 20.06   -16 27 53.4   23.7r 14WB556   W84  C~3cpS      
2014 12  20.13696  01 32 11.059  -16 20 55.87  24.5g 14WB556   W84  C~4yVK      
2014 12  20.13696  01 32 11.06   -16 20 55.9   24.6g 14WB556   W84  C~3cpS      
2014 12  24.11398  01 32 06.500  -16 19 11.16  24.3g 14WB556   W84  C~4yVK      
2014 12  24.11535  01 32 06.492  -16 19 11.18  23.7r 14WB556   W84  C~4yVK      
2014 12  24.11535  01 32 06.49   -16 19 11.2   23.8r 14WB556   W84  C~3cpT      
2015 01  12.07856  01 32 03.65   -16 08 40.7   23.4r 14WB556   W84  C~3cpT      
2015 09  04.36649  01 44 29.889  -15 26 17.41  23.3z 14WB556   W84  C~4yVK      
2015 09  13.28647  01 44 04.744  -15 31 46.79  24.1r 14WB556   W84  C~4yVK      
2015 10  07.20558  01 42 38.132  -15 44 46.25  23.7g 14WB556   W84  C~4yVK      
2015 10  07.20558  01 42 38.13   -15 44 46.3   24.3g 14WB556   W84  C~3cpT      
2015 10  07.20699  01 42 38.117  -15 44 46.26  23.1i 14WB556   W84  C~4yVK      
2015 12  01.09016  01 39 07.787  -15 54 08.40  24.0r 14WB556   W84  C~4yVK      
2015 12  01.09016  01 39 07.79   -15 54 08.4   24.1r 14WB556   W84  C~3cpT      
2016 09  30.26542  01 49 13.438  -15 08 15.98  23.7r 14WB556   W84  C~4yVK      
2016 09  30.26680  01 49 13.436  -15 08 16.11  23.1i 14WB556   W84  C~4yVK      
2016 09  30.26817  01 49 13.423  -15 08 16.00  23.5g 14WB556   W84  C~4yVK      
2016 12  28.292751 01 44 23.26   -15 12 21.5   24.2r 14WB556   568  C~4qQP      
2016 12  28.300595 01 44 23.23   -15 12 21.2   24.2r 14WB556   568  C~4qQP      
2016 12  28.308679 01 44 23.23   -15 12 21.3         14WB556   568  C~4qQP      
2017 11  09.20524  01 52 37.058  -14 48 09.48  23.7i 14WB556   W84  C~4yVK      
2017 11  27.07762  01 51 32.540  -14 48 32.87  23.4i 14WB556   W84  C~4yVK      
2018 12  03.05923  01 57 11.976  -14 14 34.02  23.4r 14WB556   W84  C~4yVK      
2020 10  20.283020 02 11 32.005  -13 01 52.85  23.6G 14WB556   G37  C~4Kxw      
2020 10  20.336010 02 11 31.785  -13 01 54.01        14WB556   G37  C~4Kxw      
2021 11  05.263310 02 16 06.883  -12 32 38.74  23.6G 14WB556   G37  C~5BVN      
2021 11  05.318760 02 16 06.659  -12 32 39.38        14WB556   G37  C~5BVN      
2021 11  05.377910 02 16 06.411  -12 32 40.19        14WB556   G37  C~5BVN      

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     0.04       0.00    -0.06
     2   0.0000      0.00     0.13       0.00    -0.03
     3   0.0792      0.00    -0.07       0.00     0.02
     4   0.0792      0.00    -0.05       0.00    -0.01
     5   0.0901      0.00     0.02       0.00     0.10
     6   0.0901      0.00    -0.10       0.00     0.02
     7   0.0901      0.00    -0.07       0.00     0.04
     8   0.1420      0.00    -0.03       0.00     0.13
     9   0.7862      0.00    -0.06       0.00     0.24
    10   0.8106      0.00    -0.08       0.00     0.03
    11   0.8761      0.00     0.10       0.00     0.04
    12   0.8761      0.00     0.13       0.00     0.09
    13   0.8761      0.00    -0.00       0.00     0.12
    14   1.0263      0.00     0.01       0.00     0.00
    15   1.0263      0.00    -0.04       0.00     0.00
    16   1.8591      0.00    -0.03       0.00     0.02
    17   1.8591      0.00     0.02       0.00    -0.07
    18   1.8591      0.00    -0.10       0.00     0.09
    19   2.1029      0.00     0.35       0.00    -0.24
    20   2.1029      0.00     0.01       0.00    -0.17
    21   2.1029      0.00     0.12       0.00    -0.50
    22   2.9678      0.00    -0.10       0.00    -0.07
    23   3.0167      0.00     0.02       0.00     0.03
    24   4.0324      0.00    -0.07       0.00     0.04
    25   5.9139      0.00     0.09       0.00     0.02
    26   5.9141      0.00     0.06       0.00     0.02
    27   6.9570      0.00    -0.06       0.00     0.01
    28   6.9572      0.00    -0.01       0.00     0.09
    29   6.9573      0.00    -0.09       0.00     0.03

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.

14WB556    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       299.047   299.047   299.047
ecceobj         0.857     0.857     0.857
incobj         24.160    24.160    24.160
qmin           40.083    40.083    40.083
qmax          560.901   560.927   561.154
amean         280.955   280.955   280.954
amin          268.445   268.463   268.449
amax          301.876   301.872   301.978
emean           0.848     0.848     0.848
emin            0.838     0.838     0.838
emax            0.858     0.858     0.858
imean          22.702    22.703    22.702
imin           22.163    22.163    22.163
imax           23.196    23.203    23.199
excite_mean     0.931     0.931     0.931
fracstop        1.000     1.000     1.000
cjmean          3.099     3.099     3.099

libcent 0       153.4     153.9     154.2
libamp  0       131.6     131.0     130.7
libcent 1       243.7     243.5     244.9
libamp  1        76.8      77.0      75.6
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       238.3     238.2     238.2
kozaiamp          4.3       4.1       4.2