Orbit Fit and Astrometric record for 04EJ96

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: 04EJ96    
# Created Sat Oct 21 01:37:29 2017
# Orbit generated from Bernstein formalism
# Fitting   22 observations of   24
# Arc:   9.16y
# First observation: 2004/03/15
#  Last observation: 2013/05/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.002606   0.037039   0.000383  -0.006028   0.028426   0.000000
# Chi-squared of fit:    12.22 DOF:   38 RMS:  0.13
# Min/Max residuals:    -0.27    0.39
# Exact a, adot, b, bdot, g, gdot:
  1.778598E-05  3.429632E-02 -2.181359E-06 -5.517011E-03  3.050628E-02 -6.566036E-03
# Covariance matrix:
  2.5120E-13 -1.8341E-13 -2.0318E-14  3.0971E-14  1.3293E-13 -5.4751E-13
 -1.8341E-13  2.1874E-13  2.5602E-14 -3.7943E-14 -7.2242E-14  6.6815E-13
 -2.0318E-14  2.5602E-14  9.7783E-14 -2.0891E-14 -8.5154E-15  8.1536E-14
  3.0971E-14 -3.7943E-14 -2.0891E-14  1.5988E-14  1.5401E-14 -1.2139E-13
  1.3293E-13 -7.2242E-14 -8.5154E-15  1.5401E-14  2.6868E-13 -2.7811E-13
 -5.4751E-13  6.6815E-13  8.1536E-14 -1.2139E-13 -2.7811E-13  2.1389E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.949053 -172.517117    0.210972    0.032968   -0.967475  2453079.881483
# Heliocentric elements and errors
Epoch:              2453070.5000  =  2004/03/06
Mean Anomaly:          319.70752 +/-     0.010
Argument of Peri:      231.04603 +/-     0.018
Long of Asc Node:       18.73523 +/-     0.000
Inclination:             9.32225 +/-     0.000
Eccentricity:         0.24162412 +/-    0.0000
Semi-Major Axis:     39.80164645 +/-    0.0036
Time of Perihelion: 2463335.7951 +/-       2.3
Perihelion:          30.18460846 +/-    0.0030
Aphelion:            49.41868443 +/-    0.0046
Period (y)              251.1075 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -33.47308014 +/-    0.0006
Ecliptic Y           -4.18160690 +/-    0.0001
Ecliptic Z            1.11483548 +/-    0.0000
Ecliptic XDOT         0.00096459 +/-    0.0000
Ecliptic YDOT        -0.00298406 +/-    0.0000
Ecliptic ZDOT        -0.00051475 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   33.75167831 +/-    0.0005
Geocenter to KBO     32.78013958 +/-    0.0006
# Hcoef:  7.97

The following table shows the complete astrometric record for 04EJ96. 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 (04EJ96) followed by the observatory code and reference code for the source of the astrometry.

2004 03  15.38074  12 30 33.92   -01 10 42.8   22.9R 04EJ96    695  Ck9976      
2004 03  16.31229  12 30 28.94   -01 10 12.8         04EJ96    695  Ck9976      
2004 03  16.41168  12 30 28.37   -01 10 09.6         04EJ96    695  Ck9976      
2004 04  21.35570  12 27 14.50   -00 51 35.7   23.0R 04EJ96    568  Ck9980      
2004 04  21.39880  12 27 14.29   -00 51 34.6         04EJ96    568  Ck9980      
2004 04  22.32135  12 27 09.74   -00 51 10.1         04EJ96    568  Ck9980      
2004 07  15.00660  12 25 12.73   -00 47 30.2   22.6R 04EJ96    807  Cl0712      
2004 07  15.99540  12 25 15.54   -00 47 54.9         04EJ96    807  Cl0712      
2004 07  16.04023  12 25 15.67   -00 47 56.2         04EJ96    807  Cl0712      
2005 03  09.45666  12 37 53.58   -02 18 20.0   23.1R 04EJ96    695  Cn0228      
2005 03  10.36086  12 37 48.98   -02 17 52.2         04EJ96    695  Cn0228      
2005 03  10.49706  12 37 48.27   -02 17 47.7         04EJ96    695  Cn0228      
2005 04  10.24652  12 35 00.10   -02 01 28.5   23.2R 04EJ96    695  Cn3122      
2005 04  11.24352  12 34 54.69   -02 00 58.0         04EJ96    695  Cn3122      
2005 04  11.32000  12 34 54.26   -02 00 55.1         04EJ96    695  Cn3122      
2006 01  31.479011 12 47 05.57   -03 37 02.1         04EJ96    645  C~1S6q      
2006 01  31.479841 12 47 05.57   -03 37 02.1         04EJ96    645  C~1S6q      
2006 01  31.482328 12 47 05.56   -03 37 02.0         04EJ96    645  C~1S6q      
2006 04  26.07659  12 40 30.35   -02 58 58.9   22.0R 04EJ96    807  Cr3590      
2006 04  26.15995  12 40 29.93   -02 58 56.8         04EJ96    807  Cr3590      
2006 04  27.10099  12 40 25.26   -02 58 32.1         04EJ96    807  Cr3590      
2006 04  27.16917  12 40 24.92   -02 58 30.0         04EJ96    807  Cr3590      
2013 05  14.22443  13 30 00.91   -10 40 39.3   23.3R 04EJ96    G37  C~0snk      
2013 05  14.28995  13 30 00.57   -10 40 37.6         04EJ96    G37  C~0snk      

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    -0.00       0.00    -0.14
  2   0.0026    -80.46     0.21      -1.89     0.07
  3   0.0028    -89.58    -0.14      -2.33    -0.08
  4   0.1012  -3201.03    -0.09    -126.16     0.16
  5   0.1013  -3204.36     0.05    -126.40     0.15
  6   0.1039  -3276.75     0.04    -130.82    -0.13
  7   0.3330  -4976.69     0.12    -621.74     0.05
  8   0.3357  -4928.18    -0.12    -627.80     0.01
  9   0.3358  -4925.88    -0.02    -628.22    -0.13
 10   0.9831   7660.77    -0.13   -1131.78    -0.23
 11   0.9856   7586.34     0.13   -1133.35     0.08
 12   0.9859   7574.77     0.04   -1133.40     0.39
 13   1.0701   4869.56    -0.17   -1225.78    -0.17
 14   1.0729   4782.96     0.18   -1229.69    -0.27
 15   1.0731   4775.89    -0.13   -1229.56     0.19
 16   1.8812  17155.99    -0.00   -2231.93     0.06
 17   1.8812  17155.99     0.03   -2231.93     0.06
 18   1.8812  17155.81    -0.07   -2231.89     0.10
 19   2.1128  10786.41 (  -0.31)  -2452.26 (   0.64)
 20   2.1130  10779.78 (  -0.19)  -2452.80 (   0.51)
 21   2.1156  10705.54     0.08   -2457.57    -0.21
 22   2.1158  10700.02     0.02   -2457.64     0.05
 23   9.1632  64250.46     0.03  -11431.36     0.03
 24   9.1633  64244.66    -0.03  -11431.60    -0.04

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.

04EJ96    quality flag:3

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

axisobj        39.327    39.338    39.317
ecceobj         0.236     0.236     0.236
incobj          9.364     9.364     9.364
qmin           29.121    29.145    29.087
qmax           50.572    50.383    50.446
amean          39.456    39.456    39.455
amin           38.947    38.964    38.969
amax           40.050    40.027    40.032
emean           0.238     0.237     0.238
emin            0.208     0.206     0.210
emax            0.263     0.260     0.262
imean           9.526     9.568     9.508
imin            8.503     8.589     8.474
imax           11.227    11.295    11.153
excite_mean     0.290     0.290     0.290
fracstop        1.000     1.000     1.000
cjmean          2.955     2.956     2.955

libcent 0       179.6     179.6     179.3
libamp  0       102.5     105.1     100.2
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       271.9     271.2     272.4
kozaiamp         33.8      35.5      33.2