Orbit Fit and Astrometric record for 14WL517

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: 14WL517   
# Created Fri Dec  3 02:12:54 2021
# Orbit generated from Bernstein formalism
# Fitting     38 observations of     38
# Arc:   3.09y
# First observation: 2014/11/23
#  Last observation: 2017/12/25
Preliminary a, adot, b, bdot, g, gdot:
  -0.000079   0.029195   0.000066  -0.010162   0.026387   0.000000
# Chi-squared of fit:    38.96 DOF:     70 RMS:  0.18
# Min/Max residuals:    -0.67    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.711568E-05  2.868586E-02 -6.274420E-06 -9.978645E-03  2.637343E-02 -6.379485E-03
# Covariance matrix:
  1.6020E-13 -1.0979E-13 -5.5693E-15  1.8607E-14 -4.6819E-14 -6.2665E-13
 -1.0979E-13  6.7472E-13  7.1668E-14 -2.1914E-13  5.0123E-14  7.5645E-12
 -5.5693E-15  7.1668E-14  1.4414E-13 -8.1471E-14  4.8921E-15  8.4484E-13
  1.8607E-14 -2.1914E-13 -8.1471E-14  1.0793E-13 -1.8374E-14 -2.5836E-12
 -4.6819E-14  5.0123E-14  4.8921E-15 -1.8374E-14  9.6319E-14  6.0035E-13
 -6.2665E-13  7.5645E-12  8.4484E-13 -2.5836E-12  6.0035E-13  8.9179E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.573733   27.242426   -0.541827   -0.235522   -0.791901  2456984.763800
# Heliocentric elements and errors
Epoch:              2456980.5000  =  2014/11/19
Mean Anomaly:          343.33406 +/-     0.017
Argument of Peri:      262.57213 +/-     0.049
Long of Asc Node:      168.80851 +/-     0.001
Inclination:            24.68739 +/-     0.000
Eccentricity:         0.40167064 +/-    0.0002
Semi-Major Axis:     60.23912380 +/-    0.0116
Time of Perihelion: 2464886.2624 +/-       7.6
Perihelion:          36.04283668 +/-    0.0152
Aphelion:            84.43541091 +/-    0.0211
Period (y)              467.5480 +/-      0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           32.79400768 +/-    0.0004
Ecliptic Y           17.49712873 +/-    0.0002
Ecliptic Z          -10.81601804 +/-    0.0001
Ecliptic XDOT        -0.00219444 +/-    0.0000
Ecliptic YDOT         0.00221677 +/-    0.0000
Ecliptic ZDOT        -0.00080384 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.71153187 +/-    0.0003
Geocenter to KBO     37.91694795 +/-    0.0004
# Hcoef:  8.46

The following table shows the complete astrometric record for 14WL517. 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 (14WL517) followed by the observatory code and reference code for the source of the astrometry.

2014 11  23.263022 02 04 47.125  -05 00 07.26  23.9i 14WL517   568  C~2Tu9      
2014 11  23.328500 02 04 46.847  -05 00 08.20  23.9i 14WL517   568  C~2Tu9      
2014 11  23.360582 02 04 46.710  -05 00 08.70  23.9i 14WL517   568  C~2Tu9      
2014 11  23.442116 02 04 46.376  -05 00 09.59  24.1i 14WL517   568  C~2Tu9      
2014 11  23.464811 02 04 46.283  -05 00 10.04  24.0i 14WL517   568  C~2Tu9      
2014 11  23.474241 02 04 46.240  -05 00 10.08  24.2i 14WL517   568  C~2Tu9      
2014 11  28.369564 02 04 26.735  -05 01 05.70  24.6r 14WL517   568  C~2Tu9      
2014 11  28.382242 02 04 26.684  -05 01 05.83  24.5r 14WL517   568  C~2Tu9      
2014 11  28.424137 02 04 26.513  -05 01 06.26  24.3r 14WL517   568  C~2Tu9      
2016 08  14.304971 02 24 49.91   -03 57 16.3   23.9z 14WL517   W84  C~2b7x      
2016 08  14.340238 02 24 49.91   -03 57 17.4   24.0i 14WL517   W84  C~2b7x      
2016 08  14.360064 02 24 49.91   -03 57 17.9   24.2r 14WL517   W84  C~2b7x      
2016 08  25.360041 02 24 41.62   -04 03 54.8   24.2z 14WL517   W84  C~2b7x      
2016 08  26.263806 02 24 40.44   -04 04 29.1   24.1i 14WL517   W84  C~2b7x      
2016 09  02.250601 02 24 28.73   -04 09 00.4   24.1i 14WL517   W84  C~2b7x      
2016 09  05.235492 02 24 22.44   -04 10 58.8   24.9g 14WL517   W84  C~2b7x      
2016 09  05.259427 02 24 22.37   -04 11 00.1   24.2r 14WL517   W84  C~2b7x      
2016 09  11.341326 02 24 07.18   -04 15 05.4   24.5r 14WL517   W84  C~2b7x      
2016 09  12.243320 02 24 04.66   -04 15 42.5   23.7i 14WL517   W84  C~2b7x      
2016 09  14.363234 02 23 58.53   -04 17 08.7   24.0i 14WL517   W84  C~2b7x      
2016 09  24.179649 02 23 25.89   -04 23 48.2   24.2r 14WL517   W84  C~2b7x      
2016 09  24.199393 02 23 25.83   -04 23 49.0   24.1i 14WL517   W84  C~2b7x      
2016 09  29.179587 02 23 06.79   -04 27 09.3   24.2z 14WL517   W84  C~2b7x      
2016 09  29.365168 02 23 06.09   -04 27 16.2   24.3r 14WL517   W84  C~2b7x      
2016 10  03.152992 02 22 50.66   -04 29 45.3   24.5r 14WL517   W84  C~2b7x      
2016 10  08.136566 02 22 29.25   -04 32 57.5   24.4i 14WL517   W84  C~2b7x      
2016 11  22.173235 02 18 57.02   -04 53 42.3   23.8r 14WL517   W84  C~2b7x      
2017 01  20.066407 02 16 43.04   -04 46 49.2   23.9i 14WL517   W84  C~2b7x      
2017 10  31.120468 02 27 54.57   -04 41 56.5   24.1i 14WL517   W84  C~2b7x      
2017 11  14.097765 02 26 46.51   -04 47 40.8   24.6r 14WL517   W84  C~2b7x      
2017 11  14.117634 02 26 46.40   -04 47 41.5   23.9i 14WL517   W84  C~2b7x      
2017 11  19.188985 02 26 22.58   -04 49 15.9   24.3r 14WL517   W84  C~2b7x      
2017 11  25.104830 02 25 55.95   -04 50 43.2   24.3r 14WL517   W84  C~2b7x      
2017 11  25.124650 02 25 55.86   -04 50 43.3   24.0i 14WL517   W84  C~2b7x      
2017 12  12.174938 02 24 49.13   -04 52 31.5   23.9r 14WL517   W84  C~2b7x      
2017 12  20.130909 02 24 24.76   -04 52 07.3   24.3r 14WL517   W84  C~2b7x      
2017 12  21.087056 02 24 22.18   -04 52 01.2   24.3i 14WL517   W84  C~2b7x      
2017 12  25.065666 02 24 12.28   -04 51 28.4   24.7r 14WL517   W84  C~2b7x      

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     0.02       0.00     0.06
     2   0.0002     -4.22    -0.04       0.60     0.01
     3   0.0003     -6.31    -0.09       0.86    -0.06
     4   0.0005    -11.29     0.09       1.80     0.06
     5   0.0006    -12.75     0.07       1.87    -0.09
     6   0.0006    -13.36     0.05       2.06     0.00
     7   0.0140   -305.59     0.02      53.51     0.02
     8   0.0140   -306.34     0.00      53.66     0.02
     9   0.0141   -308.89    -0.09      54.16     0.02
    10   1.7250  18191.44    -0.24   -2932.17    -0.07
    11   1.7251  18191.04    -0.05   -2933.20    -0.03
    12   1.7251  18190.86     0.11   -2933.67     0.10
    13   1.7552  17929.96     0.22   -3260.06    -0.04
    14   1.7577  17900.89     0.20   -3285.74    -0.09
    15   1.7768  17637.65    -0.10   -3475.95    -0.01
    16   1.7850  17506.20     0.37   -3552.55     0.21
    17   1.7851  17504.75     0.04   -3553.38    -0.03
    18   1.8017  17202.16     0.21   -3700.33     0.16
    19   1.8042  17153.28    -0.25   -3721.34    -0.11
    20   1.8100  17035.84     0.03   -3768.67    -0.05
    21   1.8369  16432.39     0.00   -3965.07     0.06
    22   1.8369  16431.26     0.19   -3965.49    -0.01
    23   1.8506  16091.28    -0.64   -4049.45    -0.10
    24   1.8511  16078.95     0.25   -4052.10     0.08
    25   1.8614  15808.32     0.07   -4107.79     0.35
    26   1.8751  15438.23    -0.67   -4171.36    -0.08
    27   1.9984  12014.32     0.24   -4186.44    -0.19
    28   2.1596  10288.42    -0.07   -3078.13    -0.40
    29   2.9373  19812.99     0.10   -6449.13     0.24
    30   2.9756  18730.04     0.18   -6399.02     0.20
    31   2.9756  18728.23    -0.12   -6399.07    -0.01
    32   2.9895  18359.00    -0.16   -6357.23    -0.18
    33   3.0057  17953.00     0.03   -6293.47    -0.23
    34   3.0058  17951.70     0.06   -6293.08    -0.08
    35   3.0525  16975.18    -0.26   -6030.28     0.03
    36   3.0742  16641.89    -0.07   -5874.85     0.07
    37   3.0769  16607.90    -0.02   -5855.09     0.05
    38   3.0878  16480.87     0.33   -5770.49     0.12

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.

14WL517    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        60.929    60.953    60.905
ecceobj         0.406     0.407     0.406
incobj         24.605    24.605    24.605
qmin           35.414    35.493    35.488
qmax           86.129    86.349    85.939
amean          60.176    60.346    60.060
amin           59.504    59.563    59.376
amax           61.062    61.260    61.005
emean           0.391     0.392     0.390
emin            0.373     0.372     0.373
emax            0.411     0.411     0.409
imean          24.470    24.551    24.453
imin           23.791    23.784    23.788
imax           25.250    25.359    25.219
excite_mean     0.570     0.571     0.569
fracstop        1.000     1.000     1.000
cjmean          2.869     2.869     2.869

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       188.5     186.0     190.4
kozaiamp        180.0     179.9     180.0