Orbit Fit and Astrometric record for 14ST349

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: 14ST349   
# Created Tue Dec 12 02:38:08 2017
# Orbit generated from Bernstein formalism
# Fitting    9 observations of    9
# Arc:   1.08y
# First observation: 2014/09/18
#  Last observation: 2015/10/16
Preliminary a, adot, b, bdot, g, gdot:
  -0.000010   0.015001   0.000002   0.000243   0.018867   0.000000
# Chi-squared of fit:    14.32 DOF:   12 RMS:  0.22
# Min/Max residuals:    -0.52    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.367088E-05  1.506923E-02  2.723665E-06  2.385754E-04  1.903695E-02 -1.635239E-03
# Covariance matrix:
  4.7795E-13  1.4500E-12 -5.5471E-14  1.5911E-13  1.3589E-12  1.7392E-10
  1.4500E-12  1.2705E-10 -1.8932E-12  1.2388E-11  5.9073E-11  1.3541E-08
 -5.5471E-14 -1.8932E-12  2.7915E-13 -4.6000E-13 -9.6503E-13 -2.0163E-10
  1.5911E-13  1.2388E-11 -4.6000E-13  2.1412E-12  5.7745E-12  1.3305E-09
  1.3589E-12  5.9073E-11 -9.6503E-13  5.7745E-12  2.9127E-11  6.3120E-09
  1.7392E-10  1.3541E-08 -2.0163E-10  1.3305E-09  6.3120E-09  1.4544E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
  -13.953014   -9.438502   -0.074947   -0.242128   -0.975076  2456918.587488
# Heliocentric elements and errors
Epoch:              2456910.5000  =  2014/09/10
Mean Anomaly:          222.72243 +/-    19.049
Argument of Peri:       62.99967 +/-    18.429
Long of Asc Node:       76.69909 +/-     0.074
Inclination:            13.72541 +/-     0.001
Eccentricity:         0.17982428 +/-    0.0351
Semi-Major Axis:     46.75329820 +/-    0.6021
Time of Perihelion: 2501436.5208 +/-    6118.2
Perihelion:          38.34591978 +/-    1.7131
Aphelion:            55.16067662 +/-    1.7876
Period (y)              319.6882 +/-      6.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           51.29046006 +/-    0.0143
Ecliptic Y           -8.44881952 +/-    0.0024
Ecliptic Z          -12.66607999 +/-    0.0036
Ecliptic XDOT         0.00013372 +/-    0.0002
Ecliptic YDOT         0.00216942 +/-    0.0000
Ecliptic ZDOT         0.00009012 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   53.50255533 +/-    0.0137
Geocenter to KBO     52.52941161 +/-    0.0149
# Hcoef:  7.22

The following table shows the complete astrometric record for 14ST349. 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 (14ST349) followed by the observatory code and reference code for the source of the astrometry.

2014 09  18.08671  23 48 01.001  -16 31 51.84  24.3r 14ST349   807  C~1x8l      
2014 09  18.16786  23 48 00.688  -16 31 52.82        14ST349   807  C~1x8l      
2014 09  18.32322  23 48 00.108  -16 31 56.68        14ST349   807  C~1x8l      
2014 10  22.12109  23 46 00.437  -16 40 57.55        14ST349   304  C~1x8l      
2014 10  22.19336  23 46 00.221  -16 40 58.09        14ST349   304  C~1x8l      
2014 11  19.15172  23 44 53.934  -16 41 27.30        14ST349   304  C~1x8l      
2014 11  21.02405  23 44 51.155  -16 41 14.34        14ST349   304  C~1x8l      
2015 10  16.27360  23 49 34.800  -16 18 06.00        14ST349   304  C~1x8l      
2015 10  16.29722  23 49 34.750  -16 18 07.00        14ST349   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    -0.24       0.00    -0.52
  2   0.0002     -4.51     0.06       0.95     0.28
  3   0.0006    -13.70     0.07       0.84    -0.15
  4   0.0932  -1804.88    -0.01     209.19     0.09
  5   0.0934  -1807.93     0.16     209.96     0.08
  6   0.1699  -2690.15     0.08     570.36     0.17
  7   0.1751  -2721.40    -0.11     598.41     0.12
  8   1.0765   1569.64    -0.05     199.56     0.39
  9   1.0766   1568.57     0.04     198.95    -0.45

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.

14ST349    quality flag:2

Type:       SCATEXTD  SCATNEAR  SCATEXTD

axisobj        47.091    50.915    46.669
ecceobj         0.173     0.323     0.144
incobj         13.731    13.734    13.729
qmin           37.858    31.470    38.875
qmax           56.500    70.252    54.507
amean          46.939    50.083    46.529
amin           46.535    48.065    46.128
amax           47.408    51.934    46.965
emean           0.177     0.337     0.148
emin            0.163     0.307     0.136
emax            0.193     0.364     0.162
imean          12.375    10.683    12.338
imin           11.823     8.494    11.873
imax           12.836    12.576    12.753
excite_mean     0.278     0.385     0.260
fracstop        1.000     1.000     1.000
cjmean          3.042     2.987     3.049

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       174.9     168.7     177.7
kozaiamp        179.9     180.0     180.0