Orbit Fit and Astrometric record for 14SX349

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: 14SX349   
# Created Fri Oct 20 01:38:31 2017
# Orbit generated from Bernstein formalism
# Fitting   12 observations of   12
# Arc:   1.07y
# First observation: 2014/09/19
#  Last observation: 2015/10/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.000005   0.013656  -0.000001   0.001738   0.018210   0.000000
# Chi-squared of fit:     2.85 DOF:   18 RMS:  0.09
# Min/Max residuals:    -0.17    0.17
# Exact a, adot, b, bdot, g, gdot:
  1.133678E-05  1.378709E-02  1.163914E-06  1.750638E-03  1.842326E-02  3.604246E-03
# Covariance matrix:
  2.3930E-13  2.7555E-13 -1.8433E-14  9.0555E-14  5.5415E-13  3.9300E-11
  2.7555E-13  9.8860E-11 -1.7190E-12  2.7568E-11  4.6271E-11  1.0883E-08
 -1.8433E-14 -1.7190E-12  1.9538E-13 -6.6102E-13 -8.5923E-13 -1.8920E-10
  9.0555E-14  2.7568E-11 -6.6102E-13  8.6066E-12  1.2836E-11  3.0667E-09
  5.5415E-13  4.6271E-11 -8.5923E-13  1.2836E-11  2.3395E-11  5.0836E-09
  3.9300E-11  1.0883E-08 -1.8920E-10  3.0667E-09  5.0836E-09  1.2101E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -9.829637  -21.626723   -0.301393   -0.163939   -0.946961  2456919.570608
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          107.04782 +/-    11.404
Argument of Peri:      171.37424 +/-     8.545
Long of Asc Node:       31.45483 +/-     0.021
Inclination:            12.06772 +/-     0.003
Eccentricity:         0.29700449 +/-    0.0442
Semi-Major Axis:     47.79245982 +/-    1.3551
Time of Perihelion: 2421025.5085 +/-    3505.1
Perihelion:          33.59788455 +/-    2.3179
Aphelion:            61.98703509 +/-    2.7485
Period (y)              330.4055 +/-     14.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           50.71977575 +/-    0.0131
Ecliptic Y          -19.78345392 +/-    0.0052
Ecliptic Z           -9.26644443 +/-    0.0024
Ecliptic XDOT         0.00128233 +/-    0.0002
Ecliptic YDOT         0.00168922 +/-    0.0001
Ecliptic ZDOT         0.00016501 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   55.22452076 +/-    0.0121
Geocenter to KBO     54.27919649 +/-    0.0143
# Hcoef:  7.00

The following table shows the complete astrometric record for 14SX349. 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 (14SX349) followed by the observatory code and reference code for the source of the astrometry.

2014 09  19.06983  22 55 23.592  -17 31 21.72  24.0r 14SX349   807  C~1x8l      
2014 09  19.06984  22 55 23.58   -17 31 21.9   24.7V 14SX349   W84  C~2JA3      
2014 09  19.14530  22 55 23.304  -17 31 23.13        14SX349   807  C~1x8l      
2014 09  19.14530  22 55 23.31   -17 31 23.1         14SX349   W84  C~2JA3      
2014 09  19.22379  22 55 23.027  -17 31 24.36        14SX349   807  C~1x8l      
2014 09  19.22379  22 55 23.03   -17 31 24.5         14SX349   W84  C~2JA3      
2014 10  22.11046  22 53 41.251  -17 37 17.22        14SX349   304  C~1x8l      
2014 10  22.18054  22 53 41.089  -17 37 17.43        14SX349   304  C~1x8l      
2014 11  19.04182  22 52 58.321  -17 36 04.90        14SX349   304  C~1x8l      
2014 11  20.03527  22 52 57.767  -17 35 55.60        14SX349   304  C~1x8l      
2015 10  16.22317  22 56 48.584  -17 13 03.46        14SX349   304  C~1x8l      
2015 10  16.24767  22 56 48.534  -17 13 03.36        14SX349   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     0.10       0.00     0.07
  2   0.0000     -0.23    -0.13      -0.10    -0.03
  3   0.0002     -4.34    -0.11       0.30     0.01
  4   0.0002     -4.25    -0.02       0.29     0.00
  5   0.0004     -8.49     0.04       0.55    -0.12
  6   0.0004     -8.47     0.06       0.70     0.03
  7   0.0905  -1487.12    -0.03     238.14    -0.05
  8   0.0907  -1489.34     0.11     238.84    -0.05
  9   0.1669  -2025.69    -0.10     541.36     0.09
 10   0.1697  -2029.42     0.07     552.99     0.06
 11   1.0737   1547.94    -0.17     539.09    -0.08
 12   1.0737   1547.32     0.17     539.47     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.

14SX349    quality flag:1

Type:           2:1E  CENTAURR  SCATNEAR

axisobj        48.043    54.271    45.932
ecceobj         0.292     0.436     0.208
incobj         12.041    12.035    12.047
qmin           32.529    30.061    34.946
qmax           63.981    78.179    57.170
amean          47.796    53.437    45.887
amin           47.153    52.238    45.458
amax           48.561    54.393    46.380
emean           0.286     0.430     0.217
emin            0.249     0.418     0.199
emax            0.320     0.439     0.235
imean          11.967    11.799    11.350
imin           10.026    11.686    10.298
imax           13.899    11.940    12.205
excite_mean     0.354     0.476     0.293
fracstop        1.000     0.002     1.000
cjmean          2.991     2.912     3.019

libcent 0        92.7    -180.0    -180.0
libamp  0        61.5    -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       244.0     190.9     186.1
kozaiamp        180.0       2.4     180.0