Orbit Fit and Astrometric record for 14WA556

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: 14WA556   
# Created Sun Nov 24 02:10:09 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     75 observations of     75
# Arc:   9.78y
# First observation: 2014/11/21
#  Last observation: 2024/08/31
# Chi-squared of fit:    19.79 DOF:    144 RMS:  0.09
# Min/Max residuals:    -0.37    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.791145E-05  2.766147E-02  8.818603E-07  1.718213E-03  2.465932E-02 -4.088278E-03
# Covariance matrix:
  6.5899E-14 -2.7997E-14  1.0776E-15 -9.9095E-16 -1.3293E-15 -7.4091E-14
 -2.7997E-14  2.2270E-14 -6.3669E-16  7.5448E-16 -6.6903E-15  6.7776E-14
  1.0776E-15 -6.3669E-16  4.3834E-14 -7.1830E-15 -5.1612E-15 -4.6836E-15
 -9.9095E-16  7.5448E-16 -7.1830E-15  2.1065E-15  2.4447E-15  3.8046E-15
 -1.3293E-15 -6.6903E-15 -5.1612E-15  2.4447E-15  1.0818E-13  2.7999E-14
 -7.4091E-14  6.7776E-14 -4.6836E-15  3.8046E-15  2.7999E-14  2.5068E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.855226    5.964766   -0.783770   -0.243433   -0.550984  2456982.703238
# Heliocentric elements and errors
Epoch:              2456982.5000  =  2014/11/21
Mean Anomaly:          347.41320 +/-     0.003
Argument of Peri:      307.36631 +/-     0.005
Long of Asc Node:       87.11242 +/-     0.000
Inclination:            23.83815 +/-     0.000
Eccentricity:         0.36134841 +/-    0.0001
Semi-Major Axis:     62.34657691 +/-    0.0062
Time of Perihelion: 2463269.3072 +/-      26.0
Perihelion:          39.81774061 +/-    0.0052
Aphelion:            84.87541321 +/-    0.0091
Period (y)              492.2969 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.40235168 +/-    0.0005
Ecliptic Y            4.69800233 +/-    0.0001
Ecliptic Z          -16.40060673 +/-    0.0002
Ecliptic XDOT        -0.00065954 +/-    0.0000
Ecliptic YDOT         0.00301443 +/-    0.0000
Ecliptic ZDOT         0.00035815 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.10954495 +/-    0.0005
Geocenter to KBO     40.55277275 +/-    0.0005
# Hcoef:  5.97

The following table shows the complete astrometric record for 14WA556. 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 (14WA556) followed by the observatory code and reference code for the source of the astrometry.

2014 11  21.20246  01 01 01.099  -19 27 58.18  21.9i 14WA556   W84  C~4yVK      
2014 11  21.20246  01 01 01.10   -19 27 58.2   21.9i 14WA556   W84  C~3cpS      
2014 11  21.20657  01 01 01.093  -19 27 58.16  23.1g 14WA556   W84  C~4yVK      
2014 11  21.20657  01 01 01.09   -19 27 58.2   23.2g 14WA556   W84  C~3cpS      
2014 12  06.08723  01 00 20.726  -19 23 37.26  21.2z 14WA556   W84  C~4yVK      
2014 12  06.08723  01 00 20.73   -19 23 37.3   21.3z 14WA556   W84  C~3cpS      
2014 12  12.09990  01 00 09.625  -19 21 01.19  22.9g 14WA556   W84  C~4yVK      
2014 12  12.09990  01 00 09.62   -19 21 01.2   22.9g 14WA556   W84  C~3cpS      
2014 12  12.13987  01 00 09.560  -19 21 00.10  22.2i 14WA556   W84  C~4yVK      
2014 12  13.12601  01 00 08.051  -19 20 31.73  22.3r 14WA556   W84  C~4yVK      
2014 12  13.12601  01 00 08.05   -19 20 31.7   22.4r 14WA556   W84  C~3cpS      
2014 12  15.12527  01 00 05.272  -19 19 32.16  22.0i 14WA556   W84  C~4yVK      
2014 12  15.12527  01 00 05.27   -19 19 32.2   22.1i 14WA556   W84  C~3cpS      
2014 12  20.12168  00 59 59.969  -19 16 50.51  23.1g 14WA556   W84  C~4yVK      
2014 12  20.12168  00 59 59.97   -19 16 50.5   23.2g 14WA556   W84  C~3cpS      
2014 12  22.05862  00 59 58.549  -19 15 43.22  22.3r 14WA556   W84  C~4yVK      
2014 12  22.05862  00 59 58.55   -19 15 43.2   22.4r 14WA556   W84  C~3cpS      
2015 10  22.15073  01 09 02.559  -18 40 54.05  21.2i 14WA556   W84  C~4yVK      
2015 10  22.15073  01 09 02.56   -18 40 54.0   21.5i 14WA556   W84  C~3cpS      
2015 11  06.12168  01 07 55.000  -18 43 10.97  22.3r 14WA556   W84  C~4yVK      
2015 11  06.12168  01 07 55.00   -18 43 11.0   22.4r 14WA556   W84  C~3cpS      
2015 11  06.12303  01 07 54.993  -18 43 10.98  23.1g 14WA556   W84  C~4yVK      
2015 11  06.12303  01 07 54.99   -18 43 11.0   23.1g 14WA556   W84  C~3cpS      
2015 12  05.09364  01 06 16.536  -18 38 41.20  21.9z 14WA556   W84  C~4yVK      
2016 08  26.38020  01 18 55.823  -17 24 16.57  22.2r 14WA556   W84  C~4yVK      
2016 08  26.38020  01 18 55.82   -17 24 16.5   22.2r 14WA556   W84  C~3cpS      
2016 10  23.15509  01 14 50.546  -17 54 03.37  21.8i 14WA556   W84  C~4yVK      
2016 10  23.15509  01 14 50.54   -17 54 03.4   21.8i 14WA556   W84  C~3cpS      
2016 10  23.15646  01 14 50.543  -17 54 03.37  21.7r 14WA556   W84  C~4yVK      
2016 10  23.15646  01 14 50.54   -17 54 03.4   22.1r 14WA556   W84  C~3cpS      
2016 10  23.15784  01 14 50.523  -17 54 03.41  22.9g 14WA556   W84  C~4yVK      
2016 10  23.15784  01 14 50.52   -17 54 03.4   23.0g 14WA556   W84  C~3cpS      
2016 11  07.12975  01 13 42.916  -17 56 15.40  21.9i 14WA556   W84  C~4yVK      
2016 11  07.12975  01 13 42.92   -17 56 15.4   22.0i 14WA556   W84  C~3cpS      
2016 11  30.15696  01 12 20.034  -17 53 31.73  22.2r 14WA556   W84  C~4yVK      
2016 11  30.15696  01 12 20.03   -17 53 31.7   22.3r 14WA556   W84  C~3cpS      
2016 12  23.04927  01 11 37.779  -17 43 37.47  21.3z 14WA556   W84  C~4yVK      
2016 12  23.04927  01 11 37.78   -17 43 37.4   21.8z 14WA556   W84  C~3cpS      
2017 10  21.14940  01 20 56.613  -17 05 09.47  22.7g 14WA556   W84  C~4yVK      
2017 11  17.11222  01 18 57.661  -17 08 11.40  22.0i 14WA556   W84  C~4yVK      
2017 11  17.11359  01 18 57.658  -17 08 11.42  22.1r 14WA556   W84  C~4yVK      
2017 11  17.11495  01 18 57.651  -17 08 11.45  22.9g 14WA556   W84  C~4yVK      
2017 11  23.03126  01 18 36.013  -17 07 30.39  21.7z 14WA556   W84  C~4yVK      
2017 11  25.05525  01 18 29.126  -17 07 09.65  21.1z 14WA556   W84  C~4yVK      
2017 11  27.05247  01 18 22.616  -17 06 45.45  21.7z 14WA556   W84  C~4yVK      
2017 11  27.05386  01 18 22.615  -17 06 45.49  21.8i 14WA556   W84  C~4yVK      
2017 12  11.05487  01 17 45.497  -17 02 24.11  22.1r 14WA556   W84  C~4yVK      
2017 12  11.05625  01 17 45.500  -17 02 24.11  22.8g 14WA556   W84  C~4yVK      
2018 09  11.40312  01 29 50.518  -15 56 08.04  21.9i 14WA556   W84  C~4yVK      
2018 11  16.17199  01 24 55.554  -16 19 24.36  21.8i 14WA556   W84  C~4yVK      
2020 09  14.47138  01 41 22.090  -14 16 27.67  22.2w 14WA556   F51  C~48ES      
2020 09  14.48370  01 41 22.035  -14 16 28.20  22.2w 14WA556   F51  C~48ES      
2020 09  14.49601  01 41 21.990  -14 16 28.45  22.3w 14WA556   F51  C~48ES      
2020 09  14.50832  01 41 21.946  -14 16 29.00  21.9w 14WA556   F51  C~48ES      
2020 09  17.54127  01 41 10.307  -14 18 19.16  22.1w 14WA556   F51  C~48ES      
2020 09  17.56105  01 41 10.213  -14 18 19.75  22.0w 14WA556   F51  C~48ES      
2020 09  17.58039  01 41 10.150  -14 18 20.60  22.1w 14WA556   F51  C~48ES      
2020 09  17.59942  01 41 10.064  -14 18 21.34  22.1w 14WA556   F51  C~48ES      
2021 08  05.577588 01 48 40.332  -12 59 45.59  22.2w 14WA556   F51  C~4xSN      
2021 08  05.588263 01 48 40.333  -12 59 45.84  22.3w 14WA556   F51  C~4xSN      
2021 08  05.598888 01 48 40.317  -12 59 46.13  22.3w 14WA556   F51  C~4xSN      
2021 11  26.254405 01 41 51.986  -13 46 42.87  22.3w 14WA556   F52  C~5HFO      
2021 11  26.265795 01 41 51.943  -13 46 42.81  22.2w 14WA556   F52  C~5HFO      
2021 11  26.277196 01 41 51.894  -13 46 42.69  22.2w 14WA556   F52  C~5HFO      
2021 11  26.288601 01 41 51.862  -13 46 42.68  22.1w 14WA556   F52  C~5HFO      
2022 09  26.477859 01 52 19.893  -12 38 07.18  22.1w 14WA556   F51  C~5r0M      
2022 09  26.488503 01 52 19.848  -12 38 07.49  22.1w 14WA556   F51  C~5r0M      
2022 09  26.499160 01 52 19.797  -12 38 07.74  22.1w 14WA556   F51  C~5r0M      
2023 09  15.544781 01 58 53.904  -11 38 06.18  22.2w 14WA556   F51  C~7B7v      
2023 09  15.553808 01 58 53.852  -11 38 06.12  22.2w 14WA556   F51  C~7B7v      
2023 09  15.562830 01 58 53.797  -11 38 07.11  22.2w 14WA556   F51  C~7B7v      
2024 08  31.548617 02 05 24.345  -10 35 30.76  22.0w 14WA556   F52  C~8Dfu      
2024 08  31.560545 02 05 24.308  -10 35 31.10  21.9w 14WA556   F52  C~8Dfu      
2024 08  31.572436 02 05 24.292  -10 35 31.62  22.2w 14WA556   F52  C~8Dfu      
2024 08  31.584363 02 05 24.243  -10 35 32.05  21.9w 14WA556   F52  C~8Dfu      

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    -0.05       0.00     0.03
     2   0.0000      0.00    -0.04       0.00     0.01
     3   0.0000      0.00     0.06       0.00    -0.00
     4   0.0000      0.00     0.02       0.00    -0.04
     5   0.0408      0.00     0.11       0.00     0.09
     6   0.0408      0.00     0.17       0.00     0.05
     7   0.0572      0.00    -0.01       0.00     0.01
     8   0.0572      0.00    -0.08       0.00    -0.00
     9   0.0573      0.00     0.00       0.00    -0.04
    10   0.0600      0.00    -0.04       0.00     0.04
    11   0.0600      0.00    -0.06       0.00     0.07
    12   0.0655      0.00    -0.05       0.00    -0.01
    13   0.0655      0.00    -0.02       0.00     0.03
    14   0.0792      0.00     0.09       0.00     0.06
    15   0.0792      0.00     0.08       0.00     0.05
    16   0.0845      0.00    -0.04       0.00    -0.01
    17   0.0845      0.00    -0.05       0.00    -0.03
    18   0.9170      0.00    -0.11       0.00    -0.21
    19   0.9170      0.00    -0.12       0.00    -0.26
    20   0.9580      0.00     0.02       0.00     0.01
    21   0.9580      0.00     0.02       0.00     0.04
    22   0.9580      0.00    -0.04       0.00     0.02
    23   0.9580      0.00     0.00       0.00     0.04
    24   1.0373      0.00    -0.01       0.00     0.09
    25   1.7637      0.00    -0.01       0.00     0.14
    26   1.7637      0.00     0.04       0.00     0.07
    27   1.9218      0.00    -0.00       0.00    -0.02
    28   1.9218      0.00     0.09       0.00     0.01
    29   1.9218      0.00     0.09       0.00    -0.00
    30   1.9218      0.00     0.14       0.00     0.03
    31   1.9218      0.00    -0.06       0.00     0.01
    32   1.9218      0.00    -0.11       0.00     0.02
    33   1.9628      0.00     0.16       0.00     0.01
    34   1.9628      0.00     0.10       0.00     0.01
    35   2.0259      0.00    -0.07       0.00     0.04
    36   2.0259      0.00    -0.01       0.00     0.01
    37   2.0886      0.00     0.01       0.00    -0.01
    38   2.0886      0.00    -0.00       0.00    -0.08
    39   2.9157      0.00     0.02       0.00     0.03
    40   2.9895      0.00     0.03       0.00     0.08
    41   2.9895      0.00     0.07       0.00     0.05
    42   2.9895      0.00     0.04       0.00     0.02
    43   3.0057      0.00     0.01       0.00     0.03
    44   3.0112      0.00    -0.02       0.00    -0.14
    45   3.0167      0.00     0.03       0.00     0.03
    46   3.0167      0.00     0.08       0.00    -0.03
    47   3.0550      0.00    -0.07       0.00     0.01
    48   3.0550      0.00     0.02       0.00    -0.02
    49   3.8062      0.00     0.05       0.00     0.03
    50   3.9862      0.00    -0.04       0.00     0.02
    51   5.8159      0.00     0.07       0.00    -0.04
    52   5.8160      0.00    -0.05       0.00    -0.11
    53   5.8160      0.00    -0.02       0.00     0.09
    54   5.8160      0.00     0.03       0.00    -0.01
    55   5.8243      0.00     0.09       0.00    -0.05
    56   5.8244      0.00    -0.13       0.00     0.07
    57   5.8244      0.00     0.09       0.00    -0.09
    58   5.8245      0.00    -0.06       0.00    -0.15
    59   6.7060      0.00    -0.05       0.00    -0.12
    60   6.7061      0.00     0.05       0.00    -0.01
    61   6.7061      0.00    -0.11       0.00     0.05
    62   7.0145      0.00     0.03       0.00    -0.10
    63   7.0145      0.00     0.02       0.00    -0.12
    64   7.0146      0.00    -0.07       0.00    -0.08
    65   7.0146      0.00     0.09       0.00    -0.15
    66   7.8474      0.00    -0.02       0.00     0.04
    67   7.8475      0.00    -0.01       0.00     0.09
    68   7.8475      0.00    -0.08       0.00     0.19
    69   8.8168      0.00     0.27       0.00     0.08
    70   8.8168      0.00    -0.03       0.00     0.46
    71   8.8169      0.00    -0.37       0.00    -0.21
    72   9.7778      0.00     0.07       0.00    -0.06
    73   9.7778      0.00    -0.05       0.00     0.03
    74   9.7779      0.00     0.15       0.00    -0.06
    75   9.7779      0.00    -0.15       0.00    -0.06

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.

14WA556    quality flag:2

Type:       SCATNEAR  SCATNEAR     3:1EE

axisobj        63.255    63.254    63.255
ecceobj         0.370     0.370     0.370
incobj         23.848    23.848    23.848
qmin           38.961    38.970    38.937
qmax           87.882    87.872    87.743
amean          62.630    62.630    62.629
amin           61.686    61.707    61.736
amax           63.784    63.776    63.763
emean           0.361     0.359     0.361
emin            0.348     0.340     0.347
emax            0.378     0.378     0.377
imean          22.436    22.533    22.429
imin           22.092    22.075    22.064
imax           22.719    23.084    22.721
excite_mean     0.526     0.525     0.525
fracstop        1.000     1.000     1.000
cjmean          2.967     2.968     2.968

libcent 0      -180.0    -180.0     182.1
libamp  0      -180.0    -180.0     177.3
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       199.1     195.2     199.8
kozaiamp        180.0     180.0     180.0