Orbit Fit and Astrometric record for 14YS72

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: 14YS72    
# Created Mon Dec  6 02:13:08 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     43 observations of     43
# Arc:   5.83y
# First observation: 2014/12/20
#  Last observation: 2020/10/20
# Chi-squared of fit:    11.44 DOF:     80 RMS:  0.09
# Min/Max residuals:    -0.19    0.24
# Exact a, adot, b, bdot, g, gdot:
  2.111374E-05  3.983146E-02 -9.226718E-07 -2.252209E-03  3.086045E-02 -5.318580E-03
# Covariance matrix:
  1.9110E-13 -9.3533E-14 -1.3153E-14  3.0381E-15 -7.2836E-14 -2.8048E-13
 -9.3533E-14  1.3431E-13  2.0359E-15 -1.0309E-14 -2.0053E-14  4.8491E-13
 -1.3153E-14  2.0359E-15  8.7998E-14 -3.0263E-14  1.3812E-14  1.1675E-14
  3.0381E-15 -1.0309E-14 -3.0263E-14  1.8402E-14  4.7275E-15 -4.2083E-14
 -7.2836E-14 -2.0053E-14  1.3812E-14  4.7275E-15  1.0170E-13 -6.0764E-14
 -2.8048E-13  4.8491E-13  1.1675E-14 -4.2083E-14 -6.0764E-14  2.0164E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -24.036241   14.746163   -0.940284   -0.116713   -0.262195  2457011.637738
# Heliocentric elements and errors
Epoch:              2457012.5000  =  2014/12/21
Mean Anomaly:          352.16846 +/-     0.003
Argument of Peri:      285.01289 +/-     0.008
Long of Asc Node:      112.73309 +/-     0.000
Inclination:            23.94621 +/-     0.000
Eccentricity:         0.41672077 +/-    0.0000
Semi-Major Axis:     54.96374837 +/-    0.0050
Time of Perihelion: 2460250.3548 +/-      19.9
Perihelion:          32.05921278 +/-    0.0038
Aphelion:            77.86828396 +/-    0.0075
Period (y)              407.4954 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.65461330 +/-    0.0003
Ecliptic Y            8.51674660 +/-    0.0001
Ecliptic Z          -13.19868402 +/-    0.0001
Ecliptic XDOT        -0.00139896 +/-    0.0000
Ecliptic YDOT         0.00328177 +/-    0.0000
Ecliptic ZDOT         0.00000981 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   32.67769374 +/-    0.0003
Geocenter to KBO     32.40406762 +/-    0.0003
# Hcoef:  8.13

The following table shows the complete astrometric record for 14YS72. 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 (14YS72) followed by the observatory code and reference code for the source of the astrometry.

2014 12  20.13696  01 32 05.334  -16 20 01.94  24.2g 14YS72    W84  C~4yVW      
2014 12  20.13835  01 32 05.343  -16 20 01.74  23.2i 14YS72    W84  C~4yVW      
2014 12  20.13835  01 32 05.34   -16 20 01.7   23.2i 14YS72    W84  C~3cpk      
2014 12  24.11262  01 31 59.230  -16 17 35.74  23.3i 14YS72    W84  C~4yVW      
2014 12  24.11262  01 31 59.23   -16 17 35.7   23.3i 14YS72    W84  C~3cpk      
2015 01  12.07856  01 31 56.182  -16 03 00.08  23.6r 14YS72    W84  C~4yVW      
2015 01  12.07856  01 31 56.18   -16 03 00.1   23.8r 14YS72    W84  C~3cpk      
2015 08  23.40484  01 49 55.632  -14 50 32.73  24.0g 14YS72    W84  C~4yVW      
2015 08  24.40661  01 49 53.406  -14 51 23.79  23.1r 14YS72    W84  C~4yVW      
2015 08  24.40797  01 49 53.398  -14 51 23.90  23.2i 14YS72    W84  C~4yVW      
2015 09  13.28647  01 48 49.016  -15 08 16.69  23.2r 14YS72    W84  C~4yVW      
2015 09  13.28647  01 48 49.02   -15 08 16.7   23.5r 14YS72    W84  C~3cpk      
2015 09  13.28785  01 48 49.016  -15 08 17.17  22.9i 14YS72    W84  C~4yVW      
2015 10  07.20699  01 46 51.320  -15 26 12.20  22.4i 14YS72    W84  C~4yVW      
2015 10  07.20699  01 46 51.32   -15 26 12.2   22.5i 14YS72    W84  C~3cpk      
2016 09  30.23233  01 56 29.599  -14 29 46.02  23.2r 14YS72    W84  C~4yVW      
2016 09  30.23233  01 56 29.60   -14 29 46.0   23.3r 14YS72    W84  C~3cpk      
2016 09  30.23370  01 56 29.582  -14 29 46.29  22.8i 14YS72    W84  C~4yVW      
2016 09  30.23370  01 56 29.58   -14 29 46.3   22.9i 14YS72    W84  C~3cpk      
2016 09  30.25720  01 56 29.466  -14 29 47.25  22.6r 14YS72    W84  C~4yVW      
2016 09  30.25720  01 56 29.46   -14 29 47.2   22.6r 14YS72    W84  C~3cpk      
2016 09  30.25858  01 56 29.454  -14 29 47.20  22.3i 14YS72    W84  C~4yVW      
2016 09  30.25858  01 56 29.45   -14 29 47.2   22.5i 14YS72    W84  C~3cpk      
2016 09  30.25995  01 56 29.445  -14 29 47.39  23.8g 14YS72    W84  C~4yVW      
2016 09  30.25995  01 56 29.44   -14 29 47.4   23.7g 14YS72    W84  C~3cpk      
2016 10  01.35060  01 56 23.752  -14 30 33.99  22.9i 14YS72    W84  C~4yVW      
2016 10  01.35060  01 56 23.75   -14 30 34.0   23.1i 14YS72    W84  C~3cpk      
2016 10  01.35196  01 56 23.752  -14 30 33.84  23.4r 14YS72    W84  C~4yVW      
2016 10  01.35196  01 56 23.75   -14 30 33.8   23.4r 14YS72    W84  C~3cpk      
2016 10  02.23330  01 56 19.123  -14 31 11.06  23.1i 14YS72    W84  C~4yVW      
2016 10  02.23330  01 56 19.12   -14 31 11.0   23.0i 14YS72    W84  C~3cpk      
2016 10  02.23468  01 56 19.111  -14 31 10.98  23.4r 14YS72    W84  C~4yVW      
2016 10  02.23468  01 56 19.11   -14 31 11.0   23.3r 14YS72    W84  C~3cpk      
2016 10  02.23608  01 56 19.100  -14 31 11.12  23.8g 14YS72    W84  C~4yVW      
2017 08  21.34763  02 07 52.420  -13 03 24.82  24.2g 14YS72    W84  C~4yVW      
2017 12  15.10045  01 59 06.185  -13 51 15.20  23.0r 14YS72    W84  C~4yVW      
2017 12  22.09393  01 58 47.246  -13 47 52.10  24.0g 14YS72    W84  C~4yVW      
2017 12  22.13715  01 58 47.138  -13 47 50.67  23.1i 14YS72    W84  C~4yVW      
2017 12  22.13852  01 58 47.134  -13 47 50.77  23.4r 14YS72    W84  C~4yVW      
2018 09  21.33169  02 15 19.356  -12 33 21.69  22.7z 14YS72    W84  C~4yVW      
2018 09  22.39391  02 15 14.767  -12 34 11.65  23.5i 14YS72    W84  C~4yVW      
2020 10  20.303290 02 30 51.315  -10 58 28.11  23.1G 14YS72    G37  C~4Ky0      
2020 10  20.355830 02 30 51.007  -10 58 29.96        14YS72    G37  C~4Ky0      

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    -0.12       0.00    -0.10
     2   0.0000      0.00     0.01       0.00     0.09
     3   0.0000      0.00     0.05       0.00     0.05
     4   0.0109      0.00    -0.13       0.00     0.03
     5   0.0109      0.00    -0.13       0.00     0.07
     6   0.0628      0.00     0.08       0.00     0.01
     7   0.0628      0.00     0.11       0.00     0.03
     8   0.6742      0.00     0.04       0.00    -0.01
     9   0.6770      0.00    -0.04       0.00    -0.03
    10   0.6770      0.00    -0.11       0.00    -0.07
    11   0.7314      0.00     0.05       0.00     0.23
    12   0.7314      0.00    -0.01       0.00     0.24
    13   0.7314      0.00     0.07       0.00    -0.17
    14   0.7969      0.00     0.05       0.00    -0.06
    15   0.7969      0.00     0.05       0.00    -0.06
    16   1.7799      0.00     0.15       0.00     0.12
    17   1.7799      0.00     0.14       0.00     0.10
    18   1.7799      0.00    -0.04       0.00    -0.12
    19   1.7799      0.00    -0.01       0.00    -0.11
    20   1.7799      0.00     0.03       0.00    -0.01
    21   1.7799      0.00     0.12       0.00    -0.06
    22   1.7799      0.00    -0.01       0.00     0.05
    23   1.7799      0.00     0.05       0.00     0.05
    24   1.7799      0.00    -0.06       0.00    -0.09
    25   1.7799      0.00     0.02       0.00    -0.08
    26   1.7829      0.00    -0.03       0.00    -0.16
    27   1.7829      0.00     0.00       0.00    -0.15
    28   1.7829      0.00     0.08       0.00     0.09
    29   1.7829      0.00     0.11       0.00     0.05
    30   1.7853      0.00     0.00       0.00     0.03
    31   1.7853      0.00     0.05       0.00    -0.03
    32   1.7853      0.00    -0.04       0.00     0.09
    33   1.7853      0.00    -0.02       0.00     0.11
    34   1.7854      0.00    -0.07       0.00     0.03
    35   2.6700      0.00    -0.08       0.00     0.10
    36   2.9869      0.00     0.16       0.00     0.02
    37   3.0060      0.00     0.01       0.00     0.04
    38   3.0062      0.00    -0.05       0.00     0.06
    39   3.0062      0.00    -0.06       0.00    -0.08
    40   3.7541      0.00    -0.19       0.00    -0.14
    41   3.7570      0.00     0.03       0.00    -0.16
    42   5.8348      0.00     0.04       0.00     0.17
    43   5.8350      0.00    -0.00       0.00     0.02

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.

14YS72    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        55.740    55.740    55.741
ecceobj         0.424     0.424     0.424
incobj         23.946    23.946    23.946
qmin           31.550    31.401    31.666
qmax           80.996    81.466    80.888
amean          55.467    55.731    55.466
amin           54.516    54.519    54.498
amax           56.658    56.776    56.642
emean           0.407     0.409     0.403
emin            0.380     0.380     0.380
emax            0.434     0.435     0.429
imean          23.349    23.353    23.415
imin           22.216    22.047    22.297
imax           24.394    24.655    24.352
excite_mean     0.568     0.570     0.566
fracstop        1.000     1.000     1.000
cjmean          2.819     2.820     2.822

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       188.9     174.4     189.8
kozaiamp        180.0     180.0     180.0