Orbit Fit and Astrometric record for 14WE556

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: 14WE556   
# Created Fri Dec  3 02:12:55 2021
# Orbit generated from Bernstein formalism
# Fitting     31 observations of     31
# Arc:   4.20y
# First observation: 2014/09/16
#  Last observation: 2018/11/29
Preliminary a, adot, b, bdot, g, gdot:
   0.000463   0.032703  -0.000186  -0.008910   0.027809   0.000000
# Chi-squared of fit:     5.30 DOF:     56 RMS:  0.07
# Min/Max residuals:    -0.22    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.984879E-05  3.271461E-02 -5.909208E-06 -8.910594E-03  2.752537E-02 -3.242696E-03
# Covariance matrix:
  2.2809E-13 -1.7241E-13 -4.0750E-14  3.5573E-14  1.0594E-13 -1.2241E-12
 -1.7241E-13  3.4540E-13  4.0969E-14 -8.4218E-14 -3.0616E-14  3.0858E-12
 -4.0750E-14  4.0969E-14  1.3259E-13 -5.1539E-14 -4.3346E-14  3.7519E-13
  3.5573E-14 -8.4218E-14 -5.1539E-14  4.5507E-14  9.7146E-15 -8.0648E-13
  1.0594E-13 -3.0616E-14 -4.3346E-14  9.7146E-15  1.5673E-13 -2.2525E-13
 -1.2241E-12  3.0858E-12  3.7519E-13 -8.0648E-13 -2.2525E-13  2.9608E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -28.431036   -8.049146   -0.018731   -0.479705   -0.886348  2456916.723918
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          353.64967 +/-     0.010
Argument of Peri:      261.91412 +/-     0.030
Long of Asc Node:      112.29956 +/-     0.000
Inclination:            31.30036 +/-     0.000
Eccentricity:         0.44904507 +/-    0.0001
Semi-Major Axis:     66.47341998 +/-    0.0087
Time of Perihelion: 2460402.4222 +/-       5.4
Perihelion:          36.62385832 +/-    0.0064
Aphelion:            96.32298164 +/-    0.0133
Period (y)              541.9762 +/-      0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.63178489 +/-    0.0005
Ecliptic Y           -4.59395736 +/-    0.0001
Ecliptic Z          -17.29700152 +/-    0.0002
Ecliptic XDOT        -0.00024773 +/-    0.0000
Ecliptic YDOT         0.00331623 +/-    0.0000
Ecliptic ZDOT        -0.00062573 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.21725529 +/-    0.0004
Geocenter to KBO     36.33012675 +/-    0.0005
# Hcoef:  7.66

The following table shows the complete astrometric record for 14WE556. 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 (14WE556) followed by the observatory code and reference code for the source of the astrometry.

2014 09  16.22314  00 20 03.597  -29 03 52.19  22.8i 14WE556   W84  C~4yVL      
2014 11  15.01751  00 15 19.143  -29 14 40.96  23.1i 14WE556   W84  C~4yVL      
2014 11  18.12940  00 15 09.980  -29 13 35.36  23.3g 14WE556   W84  C~4yVL      
2014 11  18.12940  00 15 09.98   -29 13 35.4   23.5g 14WE556   W84  C~3cpT      
2014 11  18.13077  00 15 09.972  -29 13 35.49  23.7r 14WE556   W84  C~4yVL      
2014 11  18.13077  00 15 09.97   -29 13 35.5   23.6r 14WE556   W84  C~3cpT      
2014 11  21.13615  00 15 02.005  -29 12 23.12  23.5r 14WE556   W84  C~4yVL      
2014 11  21.13615  00 15 02.01   -29 12 23.1   23.6r 14WE556   W84  C~3cpT      
2014 11  21.14206  00 15 01.994  -29 12 22.96  22.8i 14WE556   W84  C~4yVL      
2014 12  12.07359  00 14 32.881  -29 00 13.01  22.9i 14WE556   W84  C~4yVL      
2014 12  12.07359  00 14 32.88   -29 00 13.0   23.1i 14WE556   W84  C~3cpT      
2014 12  13.07205  00 14 32.709  -28 59 29.21  23.8r 14WE556   W84  C~4yVL      
2014 12  13.07205  00 14 32.71   -28 59 29.2   23.8r 14WE556   W84  C~3cpT      
2016 08  14.38661  00 39 41.610  -27 46 17.39  23.1r 14WE556   W84  C~4yVL      
2016 08  14.38661  00 39 41.61   -27 46 17.4   23.5r 14WE556   W84  C~3cpT      
2016 08  14.38798  00 39 41.612  -27 46 17.42  23.4i 14WE556   W84  C~4yVL      
2016 08  14.38935  00 39 41.588  -27 46 17.43  24.1g 14WE556   W84  C~4yVL      
2016 08  26.39682  00 38 59.198  -27 57 02.34  23.1z 14WE556   W84  C~4yVL      
2016 11  06.22419  00 33 03.185  -28 28 31.77  23.4r 14WE556   W84  C~4yVL      
2016 11  06.22419  00 33 03.18   -28 28 31.8   23.8r 14WE556   W84  C~3cpT      
2016 11  06.22558  00 33 03.186  -28 28 31.65  23.9g 14WE556   W84  C~4yVL      
2017 09  24.23315  00 45 21.080  -27 49 41.52  23.4g 14WE556   W84  C~4yVL      
2017 09  24.23453  00 45 21.070  -27 49 41.53  23.2r 14WE556   W84  C~4yVL      
2017 09  24.23591  00 45 21.060  -27 49 41.57  23.4i 14WE556   W84  C~4yVL      
2017 09  26.34959  00 45 09.830  -27 50 56.41  24.0g 14WE556   W84  C~4yVL      
2017 11  15.02422  00 41 05.247  -27 59 26.49  22.8z 14WE556   W84  C~4yVL      
2017 11  26.17719  00 40 29.726  -27 55 23.61  23.5i 14WE556   W84  C~4yVL      
2017 12  09.04570  00 40 03.858  -27 48 12.36  23.3r 14WE556   W84  C~4yVL      
2018 11  15.12889  00 49 39.020  -27 30 01.56  23.0i 14WE556   W84  C~4yVL      
2018 11  29.12106  00 48 53.274  -27 24 57.36  23.3r 14WE556   W84  C~4yVL      
2018 11  29.12243  00 48 53.274  -27 24 57.40  23.8g 14WE556   W84  C~4yVL      

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    -0.22       0.00     0.16
     2   0.1637  -3624.72     0.07    1081.76    -0.07
     3   0.1722  -3703.43     0.10    1193.56     0.04
     4   0.1722  -3703.42     0.11    1193.60     0.08
     5   0.1722  -3703.60    -0.03    1193.53    -0.04
     6   0.1722  -3703.57    -0.01    1193.53    -0.04
     7   0.1805  -3765.27    -0.03    1304.51     0.08
     8   0.1805  -3765.20     0.04    1304.50     0.07
     9   0.1805  -3765.33     0.03    1304.72     0.06
    10   0.2378  -3786.32    -0.04    2128.32    -0.05
    11   0.2378  -3786.31    -0.03    2128.31    -0.07
    12   0.2405  -3769.04     0.02    2168.64    -0.02
    13   0.2405  -3769.05     0.00    2168.64    -0.03
    14   1.9115  15940.57     0.00   -3181.44    -0.11
    15   1.9115  15940.57     0.01   -3181.44    -0.10
    16   1.9115  15940.58     0.10   -3181.47    -0.10
    17   1.9115  15940.30    -0.10   -3181.33     0.09
    18   1.9443  15131.07    -0.01   -3472.12    -0.14
    19   2.1410  10076.09    -0.14   -2866.40    -0.06
    20   2.1410  10076.16    -0.07   -2866.40    -0.07
    21   2.1410  10076.23     0.06   -2866.30    -0.02
    22   3.0226  19794.07     0.07   -5587.98     0.02
    23   3.0226  19793.94     0.06   -5587.92     0.07
    24   3.0226  19793.81     0.04   -5587.89     0.10
    25   3.0284  19625.76     0.11   -5578.59     0.01
    26   3.1644  16528.07    -0.10   -4415.97     0.02
    27   3.1949  16233.92     0.02   -3972.25     0.07
    28   3.2302  16143.85    -0.01   -3426.55     0.03
    29   4.1640  23392.77    -0.05   -6292.03     0.05
    30   4.2023  23014.17    -0.02   -5717.86     0.02
    31   4.2023  23014.15    -0.01   -5717.90    -0.07

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.

14WE556    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        67.470    67.499    67.442
ecceobj         0.457     0.457     0.457
incobj         31.288    31.288    31.288
qmin           35.979    36.009    35.994
qmax           99.074    99.150    99.023
amean          66.734    66.791    66.738
amin           65.929    65.946    65.974
amax           67.823    67.889    67.836
emean           0.441     0.441     0.441
emin            0.424     0.424     0.424
emax            0.461     0.460     0.460
imean          30.189    30.217    30.220
imin           29.508    29.527    29.523
imax           30.931    30.970    30.923
excite_mean     0.669     0.669     0.669
fracstop        1.000     1.000     1.000
cjmean          2.761     2.761     2.761

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       171.0     170.8     169.7
kozaiamp        180.0     180.0     180.0