Orbit Fit and Astrometric record for 14SD350

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: 14SD350   
# Created Fri Dec  3 02:12:37 2021
# Orbit generated from Bernstein formalism
# Fitting     13 observations of     13
# Arc: 120.84d
# First observation: 2014/07/21
#  Last observation: 2014/11/19
Preliminary a, adot, b, bdot, g, gdot:
  -0.000035   0.021454   0.000057   0.009042   0.021686   0.000000
# Chi-squared of fit:     9.35 DOF:     20 RMS:  0.15
# Min/Max residuals:    -0.24    0.37
# Exact a, adot, b, bdot, g, gdot:
  1.380955E-05  1.765311E-02  7.226576E-06  9.690186E-03  2.109652E-02 -6.169171E-03
# Covariance matrix:
  4.8716E-13 -3.5614E-13  8.3078E-16  1.0249E-13  6.2616E-13  6.8834E-11
 -3.5614E-13  4.3624E-10  5.9123E-12 -8.1770E-11  5.0620E-11 -7.2687E-09
  8.3078E-16  5.9123E-12  4.7118E-13 -2.8040E-12  6.1986E-13 -1.1612E-10
  1.0249E-13 -8.1770E-11 -2.8040E-12  2.6412E-11 -8.0125E-12  1.7121E-09
  6.2616E-13  5.0620E-11  6.1986E-13 -8.0125E-12  8.3513E-12 -4.1856E-10
  6.8834E-11 -7.2687E-09 -1.1612E-10  1.7121E-09 -4.1856E-10  2.0773E-07
#      lat0       lon0       xBary       yBary       zBary        JD0
  -16.968352  -30.422065    0.528650   -0.253985   -0.832739  2456859.780604
# Heliocentric elements and errors
Epoch:              2456850.5000  =  2014/07/12
Mean Anomaly:          322.83451 +/-     1.221
Argument of Peri:       41.55915 +/-     1.002
Long of Asc Node:      356.46975 +/-     0.029
Inclination:            32.91635 +/-     0.026
Eccentricity:         0.36343976 +/-    0.0244
Semi-Major Axis:     61.34181695 +/-    1.2986
Time of Perihelion: 2474966.8493 +/-     152.8
Perihelion:          39.04776158 +/-    1.7099
Aphelion:            83.63587233 +/-    2.3185
Period (y)              480.4444 +/-     15.26
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.57685510 +/-    0.0053
Ecliptic Y          -23.85200210 +/-    0.0032
Ecliptic Z          -13.83337873 +/-    0.0019
Ecliptic XDOT         0.00081118 +/-    0.0000
Ecliptic YDOT         0.00217343 +/-    0.0000
Ecliptic ZDOT         0.00143660 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   48.23492335 +/-    0.0047
Geocenter to KBO     47.40118234 +/-    0.0065
# Hcoef:  7.16

The following table shows the complete astrometric record for 14SD350. 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 (14SD350) followed by the observatory code and reference code for the source of the astrometry.

2014 07  21.279826 22 33 11.30   -27 24 49.6         14SD350   W84  C~4qPY      
2014 07  21.284190 22 33 11.28   -27 24 49.5         14SD350   W84  C~4qPY      
2014 07  21.299433 22 33 11.26   -27 24 50.2         14SD350   W84  C~4qPY      
2014 09  22.05418  22 28 36.955  -27 43 57.45  24.0r 14SD350   807  C~1x8l      
2014 09  22.05419  22 28 36.96   -27 43 57.7   24.0V 14SD350   W84  C~2JA3      
2014 09  22.12365  22 28 36.642  -27 43 57.80        14SD350   807  C~1x8l      
2014 09  22.12366  22 28 36.66   -27 43 58.1         14SD350   W84  C~2JA3      
2014 09  22.21571  22 28 36.250  -27 43 58.05        14SD350   807  C~1x8l      
2014 09  22.21572  22 28 36.27   -27 43 58.6         14SD350   W84  C~2JA3      
2014 10  25.05002  22 26 45.632  -27 41 34.40        14SD350   304  C~1x8l      
2014 10  26.00859  22 26 43.444  -27 41 20.45        14SD350   304  C~1x8l      
2014 11  19.03710  22 26 14.179  -27 32 45.08        14SD350   304  C~1x8l      
2014 11  19.11554  22 26 14.161  -27 32 42.97        14SD350   304  C~1x8l      

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     0.01
     2   0.0000     -0.21    -0.09       0.20     0.23
     3   0.0001     -0.72     0.22      -0.35    -0.24
     4   0.1719  -3809.98     0.04     333.30     0.10
     5   0.1719  -3810.01     0.00     333.04    -0.16
     6   0.1721  -3813.96    -0.12     334.54     0.19
     7   0.1721  -3813.85    -0.02     334.17    -0.18
     8   0.1723  -3818.87     0.01     336.28     0.37
     9   0.1723  -3818.83     0.05     335.67    -0.24
    10   0.2622  -5126.56     0.18    1022.10    -0.19
    11   0.2648  -5148.30    -0.12    1045.92     0.05
    12   0.3306  -5316.52     0.01    1669.59     0.08
    13   0.3308  -5315.96    -0.03    1671.63    -0.01

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.

14SD350    quality flag:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        61.832    66.173    58.675
ecceobj         0.368     0.437     0.300
incobj         32.810    32.759    32.862
qmin           38.013    35.900    40.007
qmax           86.416    97.443    77.859
amean          61.630    65.928    58.527
amin           60.932    65.134    57.933
amax           62.540    67.009    59.248
emean           0.366     0.436     0.299
emin            0.349     0.412     0.283
emax            0.383     0.455     0.314
imean          33.334    33.245    33.400
imin           32.941    32.651    33.068
imax           33.935    34.226    33.858
excite_mean     0.661     0.700     0.627
fracstop        1.000     1.000     1.000
cjmean          2.713     2.684     2.736

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       184.9     187.8     191.8
kozaiamp        143.0     144.3     154.1