Orbit Fit and Astrometric record for 14MD70

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: 14MD70    
# Created Sat Oct 21 01:38:25 2017
# Orbit generated from Bernstein formalism
# Fitting   15 observations of   15
# Arc:   3.88y
# First observation: 2011/08/01
#  Last observation: 2015/06/17
Preliminary a, adot, b, bdot, g, gdot:
   0.000074   0.032939  -0.000018   0.000257   0.025479   0.000000
# Chi-squared of fit:     7.70 DOF:   24 RMS:  0.13
# Min/Max residuals:    -0.30    0.33
# Exact a, adot, b, bdot, g, gdot:
  1.806723E-05  3.278718E-02  5.188665E-07  2.163223E-04  2.805682E-02 -6.178760E-04
# Covariance matrix:
  4.8932E-13 -2.7902E-13  6.5768E-16 -1.1347E-15 -1.0698E-13 -1.1726E-12
 -2.7902E-13  6.9936E-13 -3.2004E-15  5.5819E-15  4.9113E-13  5.5192E-12
  6.5768E-16 -3.2004E-15  4.6076E-13 -1.4347E-13  4.4324E-14  1.0607E-14
 -1.1347E-15  5.5819E-15 -1.4347E-13  5.8084E-14 -1.0511E-13 -4.1132E-14
 -1.0698E-13  4.9113E-13  4.4324E-14 -1.0511E-13  6.7340E-12  9.3905E-12
 -1.1726E-12  5.5192E-12  1.0607E-14 -4.1132E-14  9.3905E-12  5.1573E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.234387  -28.912990    0.388166   -0.182374   -0.917885  2455774.992616
# Heliocentric elements and errors
Epoch:              2455770.5000  =  2011/07/28
Mean Anomaly:          355.35709 +/-     0.031
Argument of Peri:      279.64131 +/-     0.057
Long of Asc Node:       59.15805 +/-     0.002
Inclination:            10.94985 +/-     0.000
Eccentricity:         0.26987064 +/-    0.0004
Semi-Major Axis:     49.96775590 +/-    0.0279
Time of Perihelion: 2457434.3754 +/-      11.1
Perihelion:          36.48292577 +/-    0.0269
Aphelion:            63.45258603 +/-    0.0396
Period (y)              353.2181 +/-      0.30
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           31.23714483 +/-    0.0028
Ecliptic Y          -17.69313459 +/-    0.0016
Ecliptic Z           -6.94381172 +/-    0.0006
Ecliptic XDOT         0.00149581 +/-    0.0000
Ecliptic YDOT         0.00283281 +/-    0.0000
Ecliptic ZDOT         0.00003251 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.56532168 +/-    0.0025
Geocenter to KBO     35.64195622 +/-    0.0033
# Hcoef:  6.84

The following table shows the complete astrometric record for 14MD70. 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 (14MD70) followed by the observatory code and reference code for the source of the astrometry.

2011 08  01.49185  22 29 33.325  -21 33 14.67  22.6w 14MD70    F51  C~1vXb      
2011 08  01.50438  22 29 33.253  -21 33 14.96  22.7w 14MD70    F51  C~1vXb      
2011 08  01.51692  22 29 33.192  -21 33 15.40  22.7w 14MD70    F51  C~1vXb      
2014 06  28.56287  22 53 19.719  -19 01 46.60  22.5w 14MD70    F51  C~1vXb      
2014 06  28.57475  22 53 19.706  -19 01 46.85  22.8w 14MD70    F51  C~1vXb      
2014 06  28.58661  22 53 19.683  -19 01 46.89  22.5w 14MD70    F51  C~1vXb      
2014 07  08.54979  22 53 00.439  -19 06 23.29  22.5w 14MD70    F51  C~1vXb      
2014 07  08.56159  22 53 00.405  -19 06 23.70  22.5w 14MD70    F51  C~1vXb      
2014 07  08.57339  22 53 00.377  -19 06 24.19  22.7w 14MD70    F51  C~1vXb      
2014 07  30.52562  22 51 47.765  -19 18 12.75  22.5w 14MD70    F51  C~1vXb      
2014 07  30.53689  22 51 47.704  -19 18 13.39  22.6w 14MD70    F51  C~1vXb      
2014 07  30.55935  22 51 47.625  -19 18 13.80  22.4w 14MD70    F51  C~1vXb      
2015 06  17.58058  23 00 35.227  -18 11 03.29  22.5w 14MD70    F51  C~1vXb      
2015 06  17.59135  23 00 35.227  -18 11 03.32  22.6w 14MD70    F51  C~1vXb      
2015 06  17.60204  23 00 35.221  -18 11 03.31  22.7w 14MD70    F51  C~1vXb      

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     0.08       0.00    -0.08
  2   0.0000     -1.04    -0.03       0.11     0.11
  3   0.0001     -1.99    -0.06       0.02     0.10
  4   2.9078  22105.09    -0.10     511.50    -0.07
  5   2.9078  22104.82    -0.00     511.35    -0.05
  6   2.9079  22104.50     0.05     511.45     0.22
  7   2.9351  21738.65     0.08     369.30    -0.14
  8   2.9352  21738.04    -0.01     369.13    -0.16
  9   2.9352  21737.47    -0.05     368.84    -0.30
 10   2.9953  20496.84     0.08     138.11     0.03
 11   2.9953  20495.78    -0.20     137.87    -0.13
 12   2.9954  20494.58     0.16     137.95     0.10
 13   3.8770  29107.12    -0.09     735.61    -0.04
 14   3.8771  29107.11     0.02     735.59     0.11
 15   3.8771  29107.03     0.06     735.63     0.33

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.

14MD70    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        49.853    49.933    49.773
ecceobj         0.269     0.270     0.268
incobj         10.961    10.961    10.960
qmin           36.024    35.928    35.902
qmax           64.169    64.321    64.398
amean          49.764    49.866    49.723
amin           49.275    49.387    49.220
amax           50.370    50.456    50.398
emean           0.260     0.263     0.260
emin            0.247     0.249     0.245
emax            0.275     0.277     0.278
imean           9.863     9.823     9.793
imin            9.150     9.085     9.113
imax           10.624    10.467    10.428
excite_mean     0.312     0.313     0.311
fracstop        1.000     1.000     1.000
cjmean          3.051     3.050     3.051

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       182.6     182.8     178.5
kozaiamp        179.9     180.0     180.0