Orbit Fit and Astrometric record for 14SK349

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: 14SK349   
# Created Mon Oct 23 01:38:29 2017
# Orbit generated from Bernstein formalism
# Fitting   25 observations of   25
# Arc:   4.13y
# First observation: 2010/10/04
#  Last observation: 2014/11/20
Preliminary a, adot, b, bdot, g, gdot:
   0.000039   0.049957  -0.000048   0.005671   0.038998   0.000000
# Chi-squared of fit:     7.64 DOF:   44 RMS:  0.10
# Min/Max residuals:    -0.35    0.16
# Exact a, adot, b, bdot, g, gdot:
  2.133602E-05  4.952706E-02  2.501638E-06  5.639586E-03  3.696808E-02 -4.079088E-04
# Covariance matrix:
  4.7859E-13 -3.4386E-13  1.4905E-14 -2.8197E-14 -1.4755E-13 -1.1243E-12
 -3.4386E-13  6.9626E-13 -4.1767E-14  7.7139E-14  6.4647E-13  3.0945E-12
  1.4905E-14 -4.1767E-14  3.7147E-13 -1.0576E-13 -4.2359E-14 -1.9495E-13
 -2.8197E-14  7.7139E-14 -1.0576E-13  4.1702E-14  7.5359E-14  3.5977E-13
 -1.4755E-13  6.4647E-13 -4.2359E-14  7.5359E-14  1.0120E-12  3.0525E-12
 -1.1243E-12  3.0945E-12 -1.9495E-13  3.5977E-13  3.0525E-12  1.4435E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.060155   13.795354    0.047789   -0.122362   -0.987808  2455473.918046
# Heliocentric elements and errors
Epoch:              2455470.5000  =  2010/10/01
Mean Anomaly:          358.81893 +/-     0.010
Argument of Peri:      315.62838 +/-     0.019
Long of Asc Node:       59.92948 +/-     0.001
Inclination:             9.38804 +/-     0.000
Eccentricity:         0.29598526 +/-    0.0001
Semi-Major Axis:     39.82488057 +/-    0.0053
Time of Perihelion: 2455771.6635 +/-       2.5
Perihelion:          28.03730283 +/-    0.0049
Aphelion:            51.61245831 +/-    0.0076
Period (y)              251.3275 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.05298745 +/-    0.0007
Ecliptic Y            6.59161125 +/-    0.0002
Ecliptic Z           -3.32472470 +/-    0.0001
Ecliptic XDOT        -0.00085371 +/-    0.0000
Ecliptic YDOT         0.00357361 +/-    0.0000
Ecliptic ZDOT         0.00041820 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   28.04224070 +/-    0.0007
Geocenter to KBO     27.05036668 +/-    0.0007
# Hcoef:  7.62

The following table shows the complete astrometric record for 14SK349. 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 (14SK349) followed by the observatory code and reference code for the source of the astrometry.

2010 10  04.41728  01 01 43.139  -01 04 04.24  22.0w 14SK349   F51  C~1vXj      
2010 10  04.44606  01 01 42.950  -01 04 05.25  22.0w 14SK349   F51  C~1vXj      
2010 10  04.46006  01 01 42.858  -01 04 05.80  22.1w 14SK349   F51  C~1vXj      
2012 11  05.28942  01 18 16.595  +01 25 56.23  22.3w 14SK349   F51  C~1vXj      
2012 11  05.30457  01 18 16.505  +01 25 55.83  22.3w 14SK349   F51  C~1vXj      
2012 11  05.31964  01 18 16.410  +01 25 55.43  22.0w 14SK349   F51  C~1vXj      
2012 11  05.33477  01 18 16.322  +01 25 55.24  22.1w 14SK349   F51  C~1vXj      
2013 10  27.33752  01 29 11.097  +02 53 32.39  22.2w 14SK349   F51  C~1vXj      
2013 10  27.35299  01 29 11.004  +02 53 31.73  22.0w 14SK349   F51  C~1vXj      
2013 10  27.36859  01 29 10.879  +02 53 31.59  22.1w 14SK349   F51  C~1vXj      
2013 10  27.38419  01 29 10.796  +02 53 31.05  22.0w 14SK349   F51  C~1vXj      
2014 09  19.46677  01 43 06.300  +04 38 00.44  22.1w 14SK349   F51  C~1vXj      
2014 09  19.46815  01 43 06.290  +04 38 00.48  22.3w 14SK349   F51  C~1vXj      
2014 09  19.47912  01 43 06.228  +04 38 00.11  22.1w 14SK349   F51  C~1vXk      
2014 09  19.48048  01 43 06.226  +04 37 59.93  22.1w 14SK349   F51  C~1vXk      
2014 09  19.49153  01 43 06.164  +04 37 59.64  22.3w 14SK349   F51  C~1vXk      
2014 09  19.49290  01 43 06.151  +04 37 59.73  22.1w 14SK349   F51  C~1vXk      
2014 09  19.50399  01 43 06.097  +04 37 59.21  22.2w 14SK349   F51  C~1vXk      
2014 09  23.46464  01 42 44.353  +04 35 45.59  22.2w 14SK349   F51  C~1vXk      
2014 09  23.48944  01 42 44.218  +04 35 44.89  22.1w 14SK349   F51  C~1vXk      
2014 09  23.50195  01 42 44.139  +04 35 44.57  22.4w 14SK349   F51  C~1vXk      
2014 11  20.36647  01 36 46.310  +04 06 01.77  22.4w 14SK349   F51  C~1vXk      
2014 11  20.37938  01 36 46.245  +04 06 01.54  22.3w 14SK349   F51  C~1vXk      
2014 11  20.39227  01 36 46.174  +04 06 01.31  22.4w 14SK349   F51  C~1vXk      
2014 11  20.40523  01 36 46.103  +04 06 00.93  22.0w 14SK349   F51  C~1vXk      

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    -0.03       0.00    -0.02
  2   0.0001     -3.00    -0.02       0.16     0.05
  3   0.0001     -4.49    -0.04       0.19     0.03
  4   2.0886  17262.35     0.10    2547.90     0.00
  5   2.0887  17260.94     0.11    2548.05    -0.02
  6   2.0887  17259.46     0.04    2548.23    -0.00
  7   2.0888  17258.16     0.15    2548.57     0.16
  8   3.0634  28481.55    -0.11    3632.51    -0.14
  9   3.0635  28479.98    -0.07    3632.43    -0.35
 10   3.0635  28478.17    -0.26    3633.02     0.10
 11   3.0636  28476.79    -0.02    3633.00    -0.06
 12   3.9591  42856.27     0.02    4674.59    -0.08
 13   3.9591  42856.15     0.02    4674.68     0.01
 14   3.9591  42855.11    -0.01    4674.69     0.02
 15   3.9591  42855.00     0.01    4674.53    -0.14
 16   3.9591  42853.99     0.02    4674.62    -0.06
 17   3.9591  42853.84    -0.01    4674.78     0.10
 18   3.9592  42852.86     0.03    4674.60    -0.08
 19   3.9700  42486.24    -0.08    4674.18    -0.09
 20   3.9701  42484.01     0.09    4674.30     0.00
 21   3.9701  42482.75     0.04    4674.45     0.14
 22   4.1285  36647.60    -0.04    5065.68     0.13
 23   4.1286  36646.58     0.04    5065.84     0.12
 24   4.1286  36645.48     0.03    5066.04     0.15
 25   4.1286  36644.31    -0.03    5066.09     0.03

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.

14SK349    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.847    39.861    39.832
ecceobj         0.297     0.297     0.296
incobj          9.387     9.387     9.387
qmin           27.511    27.470    27.455
qmax           52.211    52.097    52.043
amean          39.455    39.455    39.455
amin           38.964    38.960    38.971
amax           40.056    40.021    40.027
emean           0.287     0.287     0.287
emin            0.270     0.271     0.270
emax            0.304     0.303     0.302
imean           8.166     8.160     8.159
imin            7.427     7.430     7.410
imax            8.847     8.821     8.896
excite_mean     0.320     0.320     0.320
fracstop        1.000     1.000     1.000
cjmean          2.934     2.934     2.934

libcent 0       180.5     179.9     180.8
libamp  0        94.2      94.7      92.1
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       181.8     180.3     188.8
kozaiamp        180.0     180.0     180.0