Orbit Fit and Astrometric record for 14SR350

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: 14SR350   
# Created Tue Oct 24 01:38:28 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   2.03y
# First observation: 2014/09/26
#  Last observation: 2016/10/08
Preliminary a, adot, b, bdot, g, gdot:
   0.000014   0.023121   0.000001   0.002088   0.021878   0.000000
# Chi-squared of fit:     4.33 DOF:   24 RMS:  0.09
# Min/Max residuals:    -0.22    0.23
# Exact a, adot, b, bdot, g, gdot:
  1.677232E-05  2.356617E-02  1.618239E-06  2.132972E-03  2.207671E-02  9.359196E-03
# Covariance matrix:
  4.1093E-13 -2.0747E-12 -1.3069E-13 -1.2778E-13  7.9152E-13 -4.0895E-11
 -2.0747E-12  1.0372E-10 -4.3498E-12  1.2012E-11  2.6614E-11  2.2298E-09
 -1.3069E-13 -4.3498E-12  5.2894E-13 -6.7997E-13 -2.3450E-12 -9.5594E-11
 -1.2778E-13  1.2012E-11 -6.7997E-13  1.5766E-12  3.6798E-12  2.5951E-10
  7.9152E-13  2.6614E-11 -2.3450E-12  3.6798E-12  1.4302E-11  5.8482E-10
 -4.0895E-11  2.2298E-09 -9.5594E-11  2.5951E-10  5.8482E-10  4.8015E-08
#      lat0       lon0       xBary       yBary       zBary        JD0
  -28.688164  -44.357618   -0.735167   -0.328911   -0.601362  2456926.598324
# Heliocentric elements and errors
Epoch:              2456920.5000  =  2014/09/20
Mean Anomaly:           12.43513 +/-     0.419
Argument of Peri:      219.97107 +/-     0.538
Long of Asc Node:       35.09450 +/-     0.005
Inclination:            28.77016 +/-     0.000
Eccentricity:         0.62840816 +/-    0.0108
Semi-Major Axis:     99.53562684 +/-    2.2331
Time of Perihelion: 2444391.5672 +/-       7.2
Perihelion:          36.98662633 +/-    1.3541
Aphelion:           162.08462736 +/-    3.7905
Period (y)              993.0613 +/-     33.42
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.41320842 +/-    0.0049
Ecliptic Y          -27.73270548 +/-    0.0048
Ecliptic Z          -21.74424179 +/-    0.0037
Ecliptic XDOT         0.00285742 +/-    0.0000
Ecliptic YDOT         0.00128437 +/-    0.0000
Ecliptic ZDOT        -0.00032501 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.90263428 +/-    0.0046
Geocenter to KBO     45.29661236 +/-    0.0078
# Hcoef:  7.03

The following table shows the complete astrometric record for 14SR350. 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 (14SR350) followed by the observatory code and reference code for the source of the astrometry.

2014 09  26.097546 21 57 22.76   -43 11 16.1   24.1g 14SR350   W84  C~2Bnm      
2014 09  26.098924 21 57 22.75   -43 11 16.1   22.7i 14SR350   W84  C~2Bnn      
2014 10  14.121690 21 56 17.81   -43 05 42.1   23.3r 14SR350   W84  C~2Bnn      
2014 10  14.123067 21 56 17.80   -43 05 42.0   22.6i 14SR350   W84  C~2Bnn      
2014 10  21.139931 21 56 00.44   -43 02 27.8   22.9i 14SR350   W84  C~2Bnn      
2014 10  23.158264 21 55 56.37   -43 01 25.6   23.1r 14SR350   W84  C~2Bnn      
2014 10  23.167639 21 55 56.37   -43 01 25.6   22.7i 14SR350   W84  C~2Bnn      
2014 10  26.073773 21 55 51.28   -42 59 51.5   24.0g 14SR350   W84  C~2Bnn      
2014 10  28.024664 21 55 48.37   -42 58 45.5   22.9z 14SR350   W84  C~2Bnn      
2014 10  28.102234 21 55 48.27   -42 58 42.7   22.9i 14SR350   W84  C~2Bnn      
2014 11  05.027639 21 55 40.81   -42 53 51.4   22.2z 14SR350   W84  C~2Bnn      
2016 09  24.089201 22 10 04.37   -41 53 38.3   22.9r 14SR350   W84  C~2Bnn      
2016 09  24.090556 22 10 04.37   -41 53 38.2   23.4i 14SR350   W84  C~2Bnn      
2016 09  24.091933 22 10 04.39   -41 53 38.4   23.9g 14SR350   W84  C~2Bnn      
2016 10  08.053437 22 09 08.41   -41 50 41.8   23.0i 14SR350   W84  C~2Bnn      

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    -0.02
  2   0.0000     -0.10    -0.02       0.04    -0.02
  3   0.0493   -525.23     0.04     583.99    -0.08
  4   0.0494   -525.29     0.01     584.12     0.00
  5   0.0686   -625.63    -0.13     836.78     0.08
  6   0.0741   -642.77    -0.11     911.40     0.23
  7   0.0741   -642.77    -0.04     911.40    -0.12
  8   0.0821   -657.95     0.02    1019.76     0.03
  9   0.0874   -661.95    -0.02    1092.97    -0.00
 10   0.0876   -661.88     0.17    1095.97     0.04
 11   0.1093   -625.15     0.06    1396.35    -0.13
 12   1.9959   9590.58    -0.13     825.55     0.04
 13   1.9959   9590.62    -0.03     825.64     0.10
 14   1.9959   9590.74     0.15     825.37    -0.22
 15   2.0341   9097.88     0.02    1250.29     0.07

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.

14SR350    quality flag:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       100.066   107.077    94.220
ecceobj         0.629     0.660     0.599
incobj         28.782    28.781    28.783
qmin           35.387    34.528    36.089
qmax          171.424   186.117   156.998
amean         100.764   107.514    94.590
amin           98.789   105.412    92.991
amax          103.872   110.907    96.979
emean           0.634     0.662     0.602
emin            0.617     0.642     0.586
emax            0.650     0.679     0.619
imean          28.069    28.173    28.146
imin           27.307    27.073    27.348
imax           29.375    29.843    29.153
excite_mean     0.789     0.813     0.765
fracstop        1.000     1.000     1.000
cjmean          2.795     2.777     2.813

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       285.4     275.2     251.5
kozaiamp        180.0     180.0     180.0