Orbit Fit and Astrometric record for 14SR349

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: 14SR349   
# Created Tue Oct 24 01:38:28 2017
# Orbit generated from Bernstein formalism
# Fitting   19 observations of   19
# Arc:   2.02y
# First observation: 2014/09/19
#  Last observation: 2016/09/26
Preliminary a, adot, b, bdot, g, gdot:
  -0.000039   0.018245  -0.000014   0.001982   0.017633   0.000000
# Chi-squared of fit:     9.48 DOF:   32 RMS:  0.12
# Min/Max residuals:    -0.25    0.27
# Exact a, adot, b, bdot, g, gdot:
  1.510598E-05  1.807123E-02  1.191699E-06  1.962503E-03  1.774525E-02 -7.936817E-03
# Covariance matrix:
  1.4008E-13 -2.3588E-13  3.4354E-15 -2.1920E-14 -3.4858E-14 -4.4786E-12
 -2.3588E-13  1.9980E-12 -3.4266E-14  2.8563E-13  3.4045E-13  5.7717E-11
  3.4354E-15 -3.4266E-14  1.3123E-13 -1.0084E-13 -2.4678E-14 -1.1517E-12
 -2.1920E-14  2.8563E-13 -1.0084E-13  2.2333E-13  5.1306E-14  9.0528E-12
 -3.4858E-14  3.4045E-13 -2.4678E-14  5.1306E-14  2.6186E-13  1.1501E-11
 -4.4786E-12  5.7717E-11 -1.1517E-12  9.0528E-12  1.1501E-11  1.8333E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -17.068107  -34.334161   -0.504802   -0.255688   -0.833220  2456919.529448
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          357.17041 +/-     0.065
Argument of Peri:      341.50288 +/-     0.160
Long of Asc Node:       34.85596 +/-     0.004
Inclination:            17.97212 +/-     0.000
Eccentricity:         0.83683855 +/-    0.0027
Semi-Major Axis:    291.04565506 +/-    4.4310
Time of Perihelion: 2471165.3165 +/-      16.8
Perihelion:          47.48742991 +/-    1.0750
Aphelion:           534.60388021 +/-    8.1778
Period (y)             4965.3502 +/-    113.39
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           45.48727421 +/-    0.0013
Ecliptic Y          -30.45699229 +/-    0.0009
Ecliptic Z          -16.54004414 +/-    0.0005
Ecliptic XDOT         0.00067462 +/-    0.0000
Ecliptic YDOT         0.00290792 +/-    0.0000
Ecliptic ZDOT         0.00064898 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   57.18648052 +/-    0.0011
Geocenter to KBO     56.35311827 +/-    0.0016
# Hcoef:  6.70

The following table shows the complete astrometric record for 14SR349. 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 (14SR349) followed by the observatory code and reference code for the source of the astrometry.

2014 09  19.02867  22 17 39.955  -28 55 52.76  24.1r 14SR349   807  C~1x8l      
2014 09  19.02868  22 17 39.94   -28 55 53.0   24.6V 14SR349   W84  C~2JA3      
2014 09  19.09660  22 17 39.721  -28 55 53.27        14SR349   807  C~1x8l      
2014 09  19.09660  22 17 39.71   -28 55 53.5         14SR349   W84  C~2JA3      
2014 09  19.18469  22 17 39.401  -28 55 54.08        14SR349   807  C~1x8l      
2014 09  19.18470  22 17 39.42   -28 55 54.1         14SR349   W84  C~2JA3      
2014 10  22.08523  22 16 12.320  -28 55 02.40  24.1r 14SR349   304  C~1x8l      
2014 10  22.14790  22 16 12.205  -28 55 01.62        14SR349   304  C~1x8l      
2014 10  26.04631  22 16 05.948  -28 54 20.17        14SR349   304  C~1x8l      
2014 11  19.03200  22 15 51.376  -28 47 28.17        14SR349   304  C~1x8l      
2014 11  19.11042  22 15 51.404  -28 47 26.37        14SR349   304  C~1x8l      
2015 05  22.35150  22 26 25.472  -27 47 59.23        14SR349   304  C~1x8l      
2015 05  22.42012  22 26 25.523  -27 48 00.04        14SR349   304  C~1x8l      
2015 07  17.40768  22 25 33.352  -28 06 41.53  24.0r 14SR349   304  C~1x8l      
2015 07  18.41837  22 25 30.634  -28 07 05.79        14SR349   304  C~1x8l      
2015 12  09.06388  22 20 18.449  -28 09 34.17        14SR349   304  C~1x8l      
2015 12  09.11432  22 20 18.492  -28 09 32.61        14SR349   304  C~1x8l      
2016 09  25.23795  22 25 42.650  -27 55 36.33  24. r 14SR349   304  C~1zPw      
2016 09  26.09307  22 25 39.914  -27 55 40.18        14SR349   304  C~1zPw      

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     0.21       0.00     0.11
  2   0.0000     -0.27    -0.07      -0.15    -0.03
  3   0.0002     -3.04     0.17       0.68     0.07
  4   0.0002     -3.26    -0.05       0.52    -0.09
  5   0.0004     -7.24    -0.13       1.51    -0.07
  6   0.0004     -7.01     0.10       1.39    -0.19
  7   0.0905  -1048.29     0.11     476.88    -0.04
  8   0.0907  -1049.40     0.13     478.16     0.12
  9   0.1013  -1110.22    -0.08     547.23    -0.14
 10   0.1670  -1134.67    -0.25    1000.89     0.10
 11   0.1672  -1133.66    -0.14    1002.43     0.08
 12   0.6717   7972.26     0.00    1100.25     0.06
 13   0.6718   7972.56    -0.17    1099.23     0.18
 14   0.8251   6896.15     0.01     337.07     0.01
 15   0.8279   6853.52     0.08     328.77    -0.04
 16   1.2212   2983.78     0.27    1783.60    -0.21
 17   1.2213   2984.90    -0.22    1784.83     0.09
 18   2.0184   7269.80    -0.03     901.68     0.01
 19   2.0207   7234.88     0.05     912.31    -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.

14SR349    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       309.341   324.506   295.749
ecceobj         0.846     0.854     0.839
incobj         17.961    17.961    17.961
qmin           44.667    44.323    45.010
qmax          594.705   624.484   562.881
amean         297.159   311.569   284.276
amin          283.845   297.102   272.003
amax          321.157   335.937   305.338
emean           0.840     0.848     0.832
emin            0.829     0.838     0.822
emax            0.852     0.859     0.843
imean          17.591    17.603    17.598
imin           17.063    17.043    17.086
imax           18.153    18.179    18.135
excite_mean     0.892     0.900     0.885
fracstop        1.000     1.000     1.000
cjmean          3.354     3.349     3.358

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       347.8     350.3     349.6
kozaiamp          7.1       9.2       9.2