Orbit Fit and Astrometric record for 14SJ349

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: 14SJ349   
# Created Fri Jul 20 01:38:16 2018
# Orbit generated from Bernstein formalism
# Fitting   22 observations of   22
# Arc:   4.07y
# First observation: 2013/11/24
#  Last observation: 2017/12/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000159   0.032903  -0.000010   0.000892   0.028927   0.000000
# Chi-squared of fit:    28.04 DOF:   38 RMS:  0.20
# Min/Max residuals:    -0.42    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.724460E-05  3.275850E-02  1.835587E-06  8.944652E-04  2.889462E-02 -1.608958E-03
# Covariance matrix:
  3.6583E-13 -4.5264E-13  8.3576E-15 -1.2865E-14 -1.3048E-13 -2.8479E-12
 -4.5264E-13  7.4332E-13 -1.4109E-14  2.4071E-14  1.4823E-13  5.1519E-12
  8.3576E-15 -1.4109E-14  1.4270E-13 -6.9654E-14 -5.6875E-15 -1.0370E-13
 -1.2865E-14  2.4071E-14 -6.9654E-14  6.4388E-14  6.0554E-16  1.8813E-13
 -1.3048E-13  1.4823E-13 -5.6875E-15  6.0554E-16  3.3817E-13  7.4625E-13
 -2.8479E-12  5.1519E-12 -1.0370E-13  1.8813E-13  7.4625E-13  3.9505E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -9.005222   44.061576   -0.301343   -0.146779   -0.926832  2456620.797508
# Heliocentric elements and errors
Epoch:              2456620.5000  =  2013/11/24
Mean Anomaly:          348.07631 +/-     0.053
Argument of Peri:      297.40565 +/-     0.077
Long of Asc Node:      123.94706 +/-     0.003
Inclination:             8.91782 +/-     0.000
Eccentricity:         0.16832879 +/-    0.0001
Semi-Major Axis:     42.46434244 +/-    0.0042
Time of Perihelion: 2459968.1733 +/-      14.9
Perihelion:          35.31637085 +/-    0.0045
Aphelion:            49.61231402 +/-    0.0056
Period (y)              276.7227 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           25.02648004 +/-    0.0005
Ecliptic Y           24.64309500 +/-    0.0005
Ecliptic Z           -5.41703204 +/-    0.0001
Ecliptic XDOT        -0.00226342 +/-    0.0000
Ecliptic YDOT         0.00213310 +/-    0.0000
Ecliptic ZDOT         0.00010771 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.53802288 +/-    0.0005
Geocenter to KBO     34.60851583 +/-    0.0007
# Hcoef:  6.89

The following table shows the complete astrometric record for 14SJ349. 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 (14SJ349) followed by the observatory code and reference code for the source of the astrometry.

2013 11  24.29673  02 57 10.422  +07 26 49.09  22.4w 14SJ349   F51  C~2VW4      
2013 11  24.31002  02 57 10.331  +07 26 48.99  22.6w 14SJ349   F51  C~2VW4      
2013 11  24.32334  02 57 10.264  +07 26 48.94  22.8w 14SJ349   F51  C~2VW4      
2013 11  24.33666  02 57 10.193  +07 26 48.69  22.5w 14SJ349   F51  C~2VW4      
2014 09  23.50849  03 09 25.805  +08 27 01.47  22.2w 14SJ349   F51  C~1vXj      
2014 09  23.52116  03 09 25.787  +08 27 00.76  22.3w 14SJ349   F51  C~1vXj      
2014 09  23.53385  03 09 25.728  +08 27 00.69  22.3w 14SJ349   F51  C~1vXj      
2014 10  29.40788  03 06 46.296  +08 11 34.62  22.3w 14SJ349   F51  C~1vXj      
2014 10  29.42083  03 06 46.216  +08 11 34.27  22.4w 14SJ349   F51  C~1vXj      
2014 10  29.43372  03 06 46.153  +08 11 33.32  22.1w 14SJ349   F51  C~1vXj      
2014 11  24.34518  03 04 24.370  +08 02 05.62  22.2w 14SJ349   F51  C~1vXj      
2014 11  24.36028  03 04 24.282  +08 02 05.51  22.4w 14SJ349   F51  C~1vXj      
2014 11  24.37539  03 04 24.209  +08 02 05.19  22.4w 14SJ349   F51  C~1vXj      
2014 11  24.39050  03 04 24.143  +08 02 04.62  22.5w 14SJ349   F51  C~1vXj      
2014 11  26.29746  03 04 13.974  +08 01 31.60  22.3w 14SJ349   F51  C~1vXj      
2014 11  26.31989  03 04 13.849  +08 01 31.74  22.3w 14SJ349   F51  C~1vXj      
2014 11  26.33108  03 04 13.807  +08 01 31.29  22.3w 14SJ349   F51  C~1vXj      
2015 01  22.25005  03 01 01.735  +07 59 13.47  23.1w 14SJ349   F51  C~1vXj      
2015 01  22.26541  03 01 01.722  +07 59 13.74  22.8w 14SJ349   F51  C~1vXj      
2015 01  22.28083  03 01 01.704  +07 59 13.67  22.9w 14SJ349   F51  C~1vXj      
2017 12  20.28527  03 24 01.741  +09 39 45.92  22.3R 14SJ349   G37  C~2VW4      
2017 12  20.37174  03 24 01.385  +09 39 45.63        14SJ349   G37  C~2VW4      

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     0.14       0.00    -0.28
  2   0.0000     -1.32    -0.11       0.29    -0.06
  3   0.0001     -2.29     0.01       0.53     0.09
  4   0.0001     -3.38     0.01       0.60     0.08
  5   0.8301  11512.92     0.06     351.77     0.35
  6   0.8302  11512.47     0.28     351.17    -0.13
  7   0.8302  11511.60     0.09     351.35     0.17
  8   0.9284   8973.91     0.16     129.81     0.32
  9   0.9285   8972.67     0.02     129.81     0.33
 10   0.9285   8971.50    -0.06     129.16    -0.30
 11   0.9994   6788.28    -0.17     181.67    -0.07
 12   0.9995   6787.00    -0.20     181.94     0.11
 13   0.9995   6785.87    -0.09     181.94     0.02
 14   0.9996   6784.76     0.06     181.67    -0.34
 15   1.0048   6630.40    -0.42     192.95    -0.21
 16   1.0049   6628.66    -0.33     193.61     0.31
 17   1.0049   6627.94    -0.15     193.36    -0.02
 18   1.1607   3852.30     0.28     875.09    -0.09
 19   1.1608   3852.20     0.29     875.41    -0.02
 20   1.1608   3851.92     0.13     875.42    -0.26
 21   4.0712  25302.77    -0.23     963.64    -0.07
 22   4.0714  25297.55     0.24     964.79     0.06

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.

14SJ349    quality flag:3

Type:          5:3EE     5:3EE     5:3EE

axisobj        42.691    42.704    42.678
ecceobj         0.171     0.171     0.171
incobj          8.919     8.919     8.919
qmin           34.842    34.875    34.767
qmax           50.136    50.106    50.241
amean          42.328    42.328    42.328
amin           41.950    41.958    41.950
amax           42.742    42.742    42.765
emean           0.158     0.158     0.158
emin            0.141     0.141     0.142
emax            0.174     0.173     0.176
imean           7.652     7.654     7.656
imin            7.034     7.045     7.038
imax            8.405     8.424     8.440
excite_mean     0.207     0.207     0.207
fracstop        1.000     1.000     1.000
cjmean          3.032     3.032     3.032

libcent 0       181.8     181.0     179.6
libamp  0        34.3      32.2      40.8
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       179.1     177.9     181.8
kozaiamp        180.0     180.0     180.0