Orbit Fit and Astrometric record for 14SB374

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: 14SB374   
# Created Mon Dec  6 02:12:39 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     45 observations of     45
# Arc:   6.10y
# First observation: 2014/09/20
#  Last observation: 2020/10/25
# Chi-squared of fit:     9.59 DOF:     84 RMS:  0.08
# Min/Max residuals:    -0.30    0.19
# Exact a, adot, b, bdot, g, gdot:
  1.554848E-05  2.422197E-02  5.331071E-06  7.708360E-03  2.500969E-02 -3.603895E-03
# Covariance matrix:
  2.2758E-13 -4.2395E-14 -1.8011E-15 -3.5223E-15  1.1928E-13 -1.3001E-13
 -4.2395E-14  6.1466E-14 -1.3363E-14  1.9363E-14  2.5345E-14  4.1800E-13
 -1.8011E-15 -1.3363E-14  9.0206E-14 -2.3776E-14 -1.3642E-14 -1.0435E-13
 -3.5223E-15  1.9363E-14 -2.3776E-14  1.3432E-14  1.3672E-14  1.4889E-13
  1.1928E-13  2.5345E-14 -1.3642E-14  1.3672E-14  1.4104E-13  2.4149E-13
 -1.3001E-13  4.1800E-13 -1.0435E-13  1.4889E-13  2.4149E-13  3.1940E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
  -38.254575   38.810718    0.671057   -0.464618   -0.589518  2456920.827628
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:          307.00304 +/-     0.011
Argument of Peri:        1.83342 +/-     0.017
Long of Asc Node:      101.02437 +/-     0.000
Inclination:            40.72903 +/-     0.000
Eccentricity:         0.17452647 +/-    0.0001
Semi-Major Axis:     44.22776356 +/-    0.0031
Time of Perihelion: 2472736.2341 +/-      10.1
Perihelion:          36.50884828 +/-    0.0041
Aphelion:            51.94667884 +/-    0.0048
Period (y)              294.1377 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.46916801 +/-    0.0004
Ecliptic Y           19.62847792 +/-    0.0003
Ecliptic Z          -24.75652851 +/-    0.0004
Ecliptic XDOT        -0.00150087 +/-    0.0000
Ecliptic YDOT         0.00219493 +/-    0.0000
Ecliptic ZDOT         0.00090703 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.58139314 +/-    0.0004
Geocenter to KBO     39.98462510 +/-    0.0006
# Hcoef:  6.74

The following table shows the complete astrometric record for 14SB374. 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 (14SB374) followed by the observatory code and reference code for the source of the astrometry.

2014 09  20.32685  03 15 01.03   -21 51 25.5   23.4g 14SB374   W84  C~3cns      
2014 10  28.36399  03 12 21.225  -22 15 13.13  22.7i 14SB374   W84  C~4yUY      
2014 11  04.34367  03 11 44.362  -22 17 37.99  22.8i 14SB374   W84  C~4yUY      
2014 11  04.34367  03 11 44.36   -22 17 38.0   22.7i 14SB374   W84  C~3cns      
2014 12  12.24032  03 08 27.741  -22 16 23.34  23.0i 14SB374   W84  C~4yUY      
2014 12  12.24032  03 08 27.74   -22 16 23.3   22.9i 14SB374   W84  C~3cns      
2014 12  24.19968  03 07 37.91   -22 10 48.8   23.6g 14SB374   W84  C~3cns      
2014 12  24.20107  03 07 37.908  -22 10 48.72  22.8r 14SB374   W84  C~4yUY      
2014 12  24.20107  03 07 37.91   -22 10 48.7   22.8r 14SB374   W84  C~3cns      
2014 12  24.20246  03 07 37.898  -22 10 48.63  23.0i 14SB374   W84  C~4yUY      
2014 12  24.20246  03 07 37.90   -22 10 48.6   23.1i 14SB374   W84  C~3cns      
2015 10  16.37506  03 18 23.482  -21 16 10.69  22.7i 14SB374   W84  C~4yUY      
2015 10  23.36466  03 17 49.919  -21 19 51.74  22.6z 14SB374   W84  C~4yUY      
2015 10  23.37021  03 17 49.880  -21 19 51.85  22.8z 14SB374   W84  C~4yUY      
2015 11  16.30027  03 15 43.369  -21 27 09.12  23.4r 14SB374   W84  C~4yUY      
2015 11  16.30303  03 15 43.359  -21 27 09.43  22.8g 14SB374   W84  C~4yUY      
2015 12  21.07662  03 12 51.447  -21 20 28.41  22.3z 14SB374   W84  C~4yUY      
2015 12  21.07662  03 12 51.45   -21 20 28.4   22.4z 14SB374   W84  C~3cns      
2016 01  17.07419  03 11 31.03   -21 01 47.9   22.9i 14SB374   W84  C~3cns      
2016 09  26.25800  03 24 39.339  -20 09 10.05  23.4g 14SB374   W84  C~4yUY      
2016 09  26.25800  03 24 39.34   -20 09 10.1   23.3g 14SB374   W84  C~3cns      
2017 02  06.07016  03 16 10.606  -19 49 24.59  22.4z 14SB374   W84  C~4yUY      
2017 09  07.36157  03 30 18.986  -18 59 14.87  22.8z 14SB374   W84  C~4yUY      
2017 10  30.32217  03 27 11.628  -19 34 11.61  23.0r 14SB374   W84  C~4yUY      
2017 11  23.29742  03 25 02.883  -19 39 13.97  22.9i 14SB374   W84  C~4yUY      
2018 02  09.07506  03 21 03.708  -18 53 14.64  22.6i 14SB374   W84  C~4yUY      
2018 02  09.07643  03 21 03.716  -18 53 14.58  23.0r 14SB374   W84  C~4yUY      
2018 02  09.07780  03 21 03.704  -18 53 14.42  23.8g 14SB374   W84  C~4yUY      
2018 11  07.29540  03 31 29.213  -18 40 58.19  22.5r 14SB374   W84  C~4yUY      
2018 11  07.29676  03 31 29.202  -18 40 58.20  22.5i 14SB374   W84  C~4yUY      
2018 11  07.29814  03 31 29.195  -18 40 58.16  23.5g 14SB374   W84  C~4yUY      
2019 11  23.06201  03 35 02.64   -17 46 55.9   22.7r 14SB374   W84  C~3cns      
2019 11  23.11899  03 35 02.31   -17 46 56.0         14SB374   W84  C~3cns      
2019 11  23.19924  03 35 01.87   -17 46 56.2   22.9r 14SB374   W84  C~3cns      
2019 11  23.26488  03 35 01.51   -17 46 56.4         14SB374   W84  C~3cns      
2019 11  23.28694  03 35 01.39   -17 46 56.5         14SB374   W84  C~3cns      
2019 11  23.31542  03 35 01.23   -17 46 56.5         14SB374   W84  C~3cns      
2019 11  23.34386  03 35 01.08   -17 46 56.7         14SB374   W84  C~3cns      
2020 10  20.49324  03 42 49.810  -16 39 03.37  22.6w 14SB374   F51  C~4A4f      
2020 10  20.50731  03 42 49.747  -16 39 04.07  22.5w 14SB374   F51  C~4A4f      
2020 10  20.52141  03 42 49.687  -16 39 04.48  22.5w 14SB374   F51  C~4A4f      
2020 10  20.53550  03 42 49.625  -16 39 04.80  22.5w 14SB374   F51  C~4A4f      
2020 10  25.50482  03 42 26.172  -16 41 34.05  22.5w 14SB374   F51  C~4JA9      
2020 10  25.51619  03 42 26.106  -16 41 34.47  22.3w 14SB374   F51  C~4JA9      
2020 10  25.52803  03 42 26.039  -16 41 34.77  22.4w 14SB374   F51  C~4JA9      

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    -0.11
     2   0.1041      0.00     0.00       0.00    -0.06
     3   0.1232      0.00    -0.02       0.00    -0.09
     4   0.1232      0.00     0.01       0.00    -0.08
     5   0.2270      0.00     0.07       0.00     0.11
     6   0.2270      0.00     0.08       0.00     0.07
     7   0.2597      0.00    -0.02       0.00    -0.03
     8   0.2598      0.00     0.06       0.00     0.02
     9   0.2598      0.00     0.03       0.00    -0.00
    10   0.2598      0.00    -0.04       0.00     0.04
    11   0.2598      0.00    -0.01       0.00     0.07
    12   1.0706      0.00     0.12       0.00     0.12
    13   1.0898      0.00    -0.04       0.00     0.08
    14   1.0898      0.00    -0.20       0.00     0.13
    15   1.1553      0.00    -0.13       0.00    -0.00
    16   1.1553      0.00    -0.05       0.00    -0.30
    17   1.2505      0.00     0.04       0.00     0.08
    18   1.2505      0.00    -0.01       0.00     0.07
    19   1.3244      0.00     0.08       0.00    -0.02
    20   2.0176      0.00     0.11       0.00    -0.10
    21   2.0176      0.00     0.09       0.00    -0.05
    22   2.3812      0.00     0.04       0.00     0.02
    23   2.9652      0.00    -0.10       0.00     0.09
    24   3.1102      0.00     0.02       0.00     0.07
    25   3.1758      0.00    -0.01       0.00     0.03
    26   3.3888      0.00    -0.05       0.00     0.00
    27   3.3888      0.00     0.06       0.00    -0.02
    28   3.3888      0.00    -0.13       0.00     0.05
    29   4.1313      0.00     0.08       0.00    -0.00
    30   4.1313      0.00     0.02       0.00     0.01
    31   4.1313      0.00     0.03       0.00     0.08
    32   5.1738      0.00     0.17       0.00    -0.14
    33   5.1740      0.00    -0.07       0.00    -0.04
    34   5.1742      0.00    -0.03       0.00     0.01
    35   5.1744      0.00    -0.00       0.00     0.01
    36   5.1744      0.00     0.02       0.00    -0.03
    37   5.1745      0.00    -0.04       0.00     0.05
    38   5.1746      0.00     0.05       0.00    -0.07
    39   6.0840      0.00    -0.07       0.00     0.19
    40   6.0840      0.00    -0.03       0.00    -0.07
    41   6.0840      0.00     0.06       0.00    -0.03
    42   6.0841      0.00     0.12       0.00     0.10
    43   6.0977      0.00     0.12       0.00    -0.01
    44   6.0977      0.00    -0.03       0.00    -0.11
    45   6.0977      0.00    -0.16       0.00    -0.08

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.

14SB374    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        44.583    44.583    44.583
ecceobj         0.175     0.175     0.175
incobj         40.746    40.746    40.746
qmin           35.184    34.859    35.250
qmax           53.827    54.114    53.666
amean          44.299    44.296    44.291
amin           43.921    43.891    43.901
amax           44.749    44.741    44.739
emean           0.182     0.188     0.183
emin            0.162     0.167     0.166
emax            0.204     0.211     0.201
imean          39.057    38.987    39.049
imin           38.739    38.587    38.734
imax           39.445    39.335    39.436
excite_mean     0.656     0.657     0.656
fracstop        1.000     1.000     1.000
cjmean          2.532     2.532     2.532

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       150.8     152.0     149.7
kozaiamp        180.0     180.0     180.0