Orbit Fit and Astrometric record for 14DJ143

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: 14DJ143   
# Created Sat Dec 16 02:37:59 2017
# Orbit generated from Bernstein formalism
# Fitting   26 observations of   26
# Arc:   3.15y
# First observation: 2011/06/02
#  Last observation: 2014/07/26
Preliminary a, adot, b, bdot, g, gdot:
   0.000215   0.028294  -0.000013  -0.001987   0.027208   0.000000
# Chi-squared of fit:    11.75 DOF:   46 RMS:  0.12
# Min/Max residuals:    -0.32    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.625754E-05  2.845041E-02 -1.308474E-06 -2.001341E-03  2.748303E-02 -1.165502E-04
# Covariance matrix:
  4.8863E-13 -3.8225E-13 -4.3696E-15  1.6603E-14 -1.9208E-13 -2.5738E-12
 -3.8225E-13  1.0510E-12  2.0363E-14 -7.2379E-14  6.0764E-13  1.0927E-11
 -4.3696E-15  2.0363E-14  4.2127E-13 -1.4942E-13  1.0743E-14  2.2490E-13
  1.6603E-14 -7.2379E-14 -1.4942E-13  6.5378E-14 -4.2375E-14 -7.9849E-13
 -1.9208E-13  6.0764E-13  1.0743E-14 -4.2375E-14  5.6175E-13  6.6604E-12
 -2.5738E-12  1.0927E-11  2.2490E-13 -7.9849E-13  6.6604E-12  1.2049E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
    5.755629 -134.783334   -0.443304    0.091580   -0.909201  2455714.827576
# Heliocentric elements and errors
Epoch:              2455710.5000  =  2011/05/29
Mean Anomaly:           27.70346 +/-     1.268
Argument of Peri:       97.44589 +/-     1.314
Long of Asc Node:       99.71771 +/-     0.003
Inclination:             6.94516 +/-     0.000
Eccentricity:         0.01512156 +/-    0.0002
Semi-Major Axis:     37.79923271 +/-    0.0026
Time of Perihelion: 2449178.3761 +/-     299.1
Perihelion:          37.22764952 +/-    0.0076
Aphelion:            38.37081591 +/-    0.0076
Period (y)              232.3982 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -25.82685764 +/-    0.0007
Ecliptic Y          -26.65684852 +/-    0.0007
Ecliptic Z            3.64901072 +/-    0.0001
Ecliptic XDOT         0.00200343 +/-    0.0000
Ecliptic YDOT        -0.00199665 +/-    0.0000
Ecliptic ZDOT        -0.00019949 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   37.29516628 +/-    0.0007
Geocenter to KBO     36.38609049 +/-    0.0010
# Hcoef:  6.37

The following table shows the complete astrometric record for 14DJ143. 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 (14DJ143) followed by the observatory code and reference code for the source of the astrometry.

2011 06  02.32681  14 57 50.666  -10 53 18.69  22.4w 14DJ143   F51  C~1vXH      
2011 06  02.34010  14 57 50.602  -10 53 18.66  22.2w 14DJ143   F51  C~1vXH      
2011 06  02.35337  14 57 50.531  -10 53 18.29  22.2w 14DJ143   F51  C~1vXH      
2013 05  08.43340  15 12 26.408  -12 08 37.96  22.1w 14DJ143   F51  C~1vXH      
2013 05  08.44751  15 12 26.329  -12 08 37.53  21.9w 14DJ143   F51  C~1vXH      
2013 05  08.46159  15 12 26.242  -12 08 37.29  22.0w 14DJ143   F51  C~1vXH      
2013 05  08.47574  15 12 26.169  -12 08 37.02  21.8w 14DJ143   F51  C~1vXH      
2014 02  28.54790  15 22 54.311  -13 02 34.56  22.4w 14DJ143   F51  C~1vXH      
2014 02  28.55983  15 22 54.281  -13 02 34.47  22.1w 14DJ143   F51  C~1vXH      
2014 02  28.57179  15 22 54.280  -13 02 34.08  22.1w 14DJ143   F51  C~1vXH      
2014 02  28.58372  15 22 54.258  -13 02 34.14  22.4w 14DJ143   F51  C~1vXH      
2014 05  22.41312  15 17 31.448  -12 37 20.83  22.2w 14DJ143   F51  C~1vXH      
2014 05  22.42691  15 17 31.365  -12 37 20.59  22.2w 14DJ143   F51  C~1vXH      
2014 05  22.44037  15 17 31.329  -12 37 20.13  22.2w 14DJ143   F51  C~1vXH      
2014 05  22.45379  15 17 31.217  -12 37 19.98  22.1w 14DJ143   F51  C~1vXH      
2014 05  24.36642  15 17 21.224  -12 36 46.46  22.2w 14DJ143   F51  C~1vXH      
2014 05  24.37906  15 17 21.165  -12 36 46.26  22.0w 14DJ143   F51  C~1vXH      
2014 05  24.43312  15 17 20.871  -12 36 45.38  22.3w 14DJ143   F51  C~1vXH      
2014 05  24.44575  15 17 20.800  -12 36 45.00  22.0w 14DJ143   F51  C~1vXH      
2014 06  03.42106  15 16 30.163  -12 34 05.22  22.1w 14DJ143   F51  C~1vXH      
2014 06  03.43376  15 16 30.101  -12 34 04.84  22.1w 14DJ143   F51  C~1vXH      
2014 06  03.44644  15 16 30.045  -12 34 04.64  22.2w 14DJ143   F51  C~1vXH      
2014 07  26.26522  15 13 43.851  -12 29 56.45  22.4w 14DJ143   F51  C~1vXH      
2014 07  26.27722  15 13 43.830  -12 29 56.41  22.3w 14DJ143   F51  C~1vXH      
2014 07  26.28919  15 13 43.820  -12 29 56.60  22.2w 14DJ143   F51  C~1vXH      
2014 07  26.30114  15 13 43.812  -12 29 56.57  22.1w 14DJ143   F51  C~1vXH      

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     0.02       0.00     0.03
  2   0.0000     -0.91     0.07      -0.24    -0.13
  3   0.0001     -2.02    -0.08      -0.18     0.00
  4   1.9332  13641.24     0.11    -744.74     0.04
  5   1.9333  13640.01     0.03    -744.64     0.16
  6   1.9333  13638.71    -0.11    -744.76     0.07
  7   1.9333  13637.60    -0.05    -744.79     0.06
  8   2.7439  23445.12     0.29   -1400.66    -0.04
  9   2.7440  23444.67     0.00   -1400.69    -0.14
 10   2.7440  23444.55     0.05   -1400.32     0.15
 11   2.7440  23444.25    -0.07   -1400.46    -0.08
 12   2.9708  18439.15    -0.10   -1195.04    -0.16
 13   2.9708  18437.90    -0.23   -1195.14    -0.20
 14   2.9709  18437.27     0.22   -1194.83     0.16
 15   2.9709  18435.63    -0.32   -1195.13    -0.09
 16   2.9762  18284.54    -0.03   -1202.12    -0.06
 17   2.9762  18283.65     0.09   -1202.16    -0.04
 18   2.9763  18279.23     0.01   -1202.47    -0.12
 19   2.9764  18278.12    -0.09   -1202.38     0.02
 20   3.0037  17515.48    -0.09   -1247.92    -0.07
 21   3.0037  17514.49    -0.12   -1247.80     0.13
 22   3.0037  17513.64    -0.02   -1247.83     0.17
 23   3.1484  15088.77     0.21   -1668.16     0.00
 24   3.1484  15088.46     0.04   -1668.21     0.08
 25   3.1484  15088.37     0.09   -1668.43    -0.03
 26   3.1485  15088.25     0.11   -1668.43     0.09

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.

14DJ143    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        37.699    37.707    37.691
ecceobj         0.013     0.013     0.013
incobj          6.947     6.947     6.947
qmin           35.571    35.582    35.655
qmax           40.464    40.427    40.411
amean          37.963    37.971    37.956
amin           37.689    37.689    37.669
amax           38.252    38.270    38.245
emean           0.032     0.032     0.032
emin            0.001     0.001     0.002
emax            0.060     0.059     0.058
imean           6.014     6.003     6.021
imin            4.385     4.371     4.389
imax            7.530     7.545     7.525
excite_mean     0.110     0.110     0.110
fracstop        1.000     1.000     1.000
cjmean          3.025     3.025     3.025

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       180.5     180.8     180.4
kozaiamp        180.0     179.9     180.0