Orbit Fit and Astrometric record for 14MG70

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: 14MG70    
# Created Mon Dec 18 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   3.62y
# First observation: 2011/11/16
#  Last observation: 2015/06/29
Preliminary a, adot, b, bdot, g, gdot:
  -0.000227   0.023803  -0.000037   0.004964   0.024569   0.000000
# Chi-squared of fit:    14.46 DOF:   60 RMS:  0.12
# Min/Max residuals:    -0.37    0.38
# Exact a, adot, b, bdot, g, gdot:
  1.531726E-05  2.294740E-02  3.295085E-06  4.787879E-03  2.376715E-02 -1.501243E-03
# Covariance matrix:
  3.5978E-13 -3.2849E-13  2.2677E-14 -3.8459E-14 -7.3546E-14 -2.3206E-12
 -3.2849E-13  6.2644E-13 -4.9008E-14  6.6088E-14 -1.8656E-13  4.1138E-12
  2.2677E-14 -4.9008E-14  1.9250E-13 -8.2459E-14  1.1643E-14 -3.5813E-13
 -3.8459E-14  6.6088E-14 -8.2459E-14  4.9247E-14  3.4393E-15  5.5190E-13
 -7.3546E-14 -1.8656E-13  1.1643E-14  3.4393E-15  4.3275E-13  3.5872E-14
 -2.3206E-12  4.1138E-12 -3.5813E-13  5.5190E-13  3.5872E-14  3.3712E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.867001  -49.565157   -0.960822    0.011093    0.221530  2455881.710046
# Heliocentric elements and errors
Epoch:              2455880.5000  =  2011/11/15
Mean Anomaly:          312.27936 +/-     0.183
Argument of Peri:       38.98040 +/-     0.215
Long of Asc Node:      325.25154 +/-     0.000
Inclination:            12.17072 +/-     0.001
Eccentricity:         0.05687709 +/-    0.0002
Semi-Major Axis:     43.44694719 +/-    0.0064
Time of Perihelion: 2469746.1766 +/-      53.0
Perihelion:          40.97581127 +/-    0.0101
Aphelion:            45.91808311 +/-    0.0106
Period (y)              286.3829 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.84627464 +/-    0.0008
Ecliptic Y          -31.19143277 +/-    0.0009
Ecliptic Z           -2.10435327 +/-    0.0001
Ecliptic XDOT         0.00191405 +/-    0.0000
Ecliptic YDOT         0.00182992 +/-    0.0000
Ecliptic ZDOT         0.00055957 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.86584279 +/-    0.0008
Geocenter to KBO     42.07487640 +/-    0.0012
# Hcoef:  5.96

The following table shows the complete astrometric record for 14MG70. 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 (14MG70) followed by the observatory code and reference code for the source of the astrometry.

2011 11  16.20928  20 54 50.916  -20 22 55.10  21.9w 14MG70    F51  C~1vXb      
2011 11  16.21421  20 54 50.931  -20 22 54.58  22.1w 14MG70    F51  C~1vXb      
2011 11  16.22395  20 54 50.940  -20 22 55.05  22.3w 14MG70    F51  C~1vXb      
2012 08  21.37831  21 02 38.433  -19 42 28.77  22.2w 14MG70    F51  C~1vXb      
2012 08  21.39215  21 02 38.376  -19 42 29.02  22.2w 14MG70    F51  C~1vXb      
2012 08  21.40629  21 02 38.307  -19 42 29.45  22.4w 14MG70    F51  C~1vXb      
2012 08  21.42013  21 02 38.233  -19 42 29.52  22.1w 14MG70    F51  C~1vXb      
2012 11  03.21430  20 59 37.256  -19 47 38.74  22.3w 14MG70    F51  C~1vXc      
2012 11  03.21904  20 59 37.263  -19 47 38.58  22.3w 14MG70    F51  C~1vXc      
2012 11  03.22857  20 59 37.280  -19 47 38.64  22.4w 14MG70    F51  C~1vXc      
2013 07  13.46558  21 10 55.855  -18 50 46.89  22.0w 14MG70    F51  C~1vXc      
2013 07  13.47946  21 10 55.800  -18 50 47.24  22.1w 14MG70    F51  C~1vXc      
2013 07  13.49906  21 10 55.700  -18 50 47.47  22.3w 14MG70    F51  C~1vXc      
2013 07  13.51366  21 10 55.642  -18 50 47.83  22.1w 14MG70    F51  C~1vXc      
2013 08  04.44664  21 09 11.730  -18 57 33.71  22.1w 14MG70    F51  C~1vXc      
2013 08  04.46053  21 09 11.663  -18 57 34.02  21.8w 14MG70    F51  C~1vXc      
2013 08  04.47445  21 09 11.592  -18 57 34.39  22.3w 14MG70    F51  C~1vXc      
2013 08  04.48833  21 09 11.514  -18 57 34.62  22.0w 14MG70    F51  C~1vXc      
2014 06  27.51314  21 17 05.131  -18 05 37.09  22.3w 14MG70    F51  C~1vXc      
2014 06  27.52489  21 17 05.100  -18 05 37.06  22.7w 14MG70    F51  C~1vXc      
2014 06  27.53659  21 17 05.049  -18 05 37.39  22.2w 14MG70    F51  C~1vXc      
2014 06  27.54825  21 17 05.010  -18 05 37.70  22.2w 14MG70    F51  C~1vXc      
2014 07  28.44808  21 14 53.884  -18 14 38.50  22.1w 14MG70    F51  C~1vXc      
2014 07  28.45995  21 14 53.832  -18 14 38.92  22.0w 14MG70    F51  C~1vXc      
2014 07  28.47182  21 14 53.765  -18 14 39.12  22.3w 14MG70    F51  C~1vXc      
2014 07  28.48369  21 14 53.706  -18 14 39.26  22.2w 14MG70    F51  C~1vXc      
2014 08  01.48635  21 14 34.327  -18 15 55.39  22.1w 14MG70    F51  C~1vXc      
2014 08  01.49824  21 14 34.278  -18 15 55.83  22.2w 14MG70    F51  C~1vXc      
2014 08  01.51014  21 14 34.206  -18 15 56.10  22.0w 14MG70    F51  C~1vXc      
2014 08  01.52202  21 14 34.153  -18 15 56.32  22.0w 14MG70    F51  C~1vXc      
2015 06  29.54773  21 22 01.430  -17 24 50.07  21.6i 14MG70    F51  C~1vXc      
2015 06  29.55875  21 22 01.388  -17 24 50.03  21.6i 14MG70    F51  C~1vXc      
2015 06  29.56975  21 22 01.372  -17 24 50.54  21.6i 14MG70    F51  C~1vXc      

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    -0.01       0.00    -0.02
  2   0.0000      0.35     0.18       0.44     0.38
  3   0.0000      0.34    -0.14      -0.04    -0.17
  4   0.7643   7006.85    -0.03     478.61     0.02
  5   0.7644   7006.01     0.10     478.60    -0.05
  6   0.7644   7004.95     0.03     478.47    -0.25
  7   0.7644   7003.93    -0.02     478.70    -0.08
  8   0.9665   4464.49    -0.13     908.54    -0.03
  9   0.9665   4464.63    -0.05     908.67     0.06
 10   0.9665   4464.84     0.05     908.54    -0.13
 11   1.6571  14670.84    -0.07    1389.82     0.05
 12   1.6571  14669.99     0.00    1389.72    -0.08
 13   1.6572  14668.56    -0.12    1389.92     0.08
 14   1.6572  14667.66    -0.05    1389.82    -0.04
 15   1.7173  13132.04     0.10    1439.36     0.07
 16   1.7173  13131.04     0.12    1439.34     0.01
 17   1.7174  13129.96     0.07    1439.29    -0.10
 18   1.7174  13128.83    -0.03    1439.39    -0.04
 19   2.6127  20540.97    -0.06    2393.42    -0.00
 20   2.6128  20540.55     0.15    2393.58     0.15
 21   2.6128  20539.75    -0.03    2393.49     0.04
 22   2.6128  20539.12    -0.04    2393.36    -0.10
 23   2.6974  18576.76    -0.00    2446.24     0.12
 24   2.6975  18575.92     0.02    2446.07    -0.09
 25   2.6975  18574.94    -0.09    2446.16    -0.03
 26   2.6975  18574.09    -0.08    2446.29     0.06
 27   2.7085  18285.65     0.04    2457.19     0.34
 28   2.7085  18284.84     0.12    2456.98     0.09
 29   2.7086  18283.77    -0.08    2457.03     0.11
 30   2.7086  18282.98     0.01    2457.05     0.09
 31   3.6176  25383.42    -0.07    3423.40    -0.15
 32   3.6177  25382.85    -0.05    3423.63     0.06
 33   3.6177  25382.47     0.16    3423.21    -0.37

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.

14MG70    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.373    43.392    43.354
ecceobj         0.057     0.057     0.057
incobj         12.168    12.167    12.168
qmin           40.343    40.319    40.280
qmax           46.732    46.745    46.710
amean          43.418    43.438    43.399
amin           43.089    43.106    43.058
amax           43.763    43.791    43.755
emean           0.056     0.056     0.055
emin            0.043     0.043     0.043
emax            0.068     0.068     0.068
imean          13.297    13.295    13.297
imin           12.754    12.756    12.754
imax           13.771    13.772    13.777
excite_mean     0.237     0.237     0.237
fracstop        1.000     1.000     1.000
cjmean          3.026     3.026     3.026

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       179.6     180.1     179.0
kozaiamp        180.0     179.9     180.0