Orbit Fit and Astrometric record for 04EV95

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: 04EV95    
# Created Fri Nov 16 02:08:22 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   20 observations of   20
# Arc:  11.02y
# First observation: 2004/03/15
#  Last observation: 2015/03/23
# Chi-squared of fit:    24.33 DOF:   34 RMS:  0.19
# Min/Max residuals:    -0.28    0.73
# Exact a, adot, b, bdot, g, gdot:
  1.343717E-05  2.253240E-02  3.153465E-06  4.809083E-03  2.464967E-02  4.454857E-03
# Covariance matrix:
  4.6833E-13 -8.1340E-14  7.0585E-15 -8.1902E-15  3.8488E-13 -1.6123E-13
 -8.1340E-14  1.0131E-13 -1.9626E-14  2.1386E-14  6.6427E-14  4.2288E-13
  7.0585E-15 -1.9626E-14  1.9687E-13 -2.6347E-14 -2.2302E-14 -8.7660E-14
 -8.1902E-15  2.1386E-14 -2.6347E-14  9.2017E-15  2.3415E-14  9.5318E-14
  3.8488E-13  6.6427E-14 -2.2302E-14  2.3415E-14  8.0309E-13  4.6427E-13
 -1.6123E-13  4.2288E-13 -8.7660E-14  9.5318E-14  4.6427E-13  1.8851E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.371845 -156.456226    0.469363    0.036148   -0.871793  2453079.959363
# Heliocentric elements and errors
Epoch:              2453080.5000  =  2004/03/16
Mean Anomaly:           93.46680 +/-     0.046
Argument of Peri:      257.03600 +/-     0.029
Long of Asc Node:      192.12911 +/-     0.000
Inclination:            12.25205 +/-     0.000
Eccentricity:         0.18573167 +/-    0.0001
Semi-Major Axis:     39.68729567 +/-    0.0051
Time of Perihelion: 2429370.5541 +/-      12.6
Perihelion:          32.31610782 +/-    0.0047
Aphelion:            47.05848352 +/-    0.0064
Period (y)              250.0262 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -38.15040352 +/-    0.0014
Ecliptic Y          -16.10757986 +/-    0.0006
Ecliptic Z            1.67907559 +/-    0.0001
Ecliptic XDOT         0.00056325 +/-    0.0000
Ecliptic YDOT        -0.00248978 +/-    0.0000
Ecliptic ZDOT         0.00055431 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.44535658 +/-    0.0013
Geocenter to KBO     40.56840757 +/-    0.0015
# Hcoef:  7.44

The following table shows the complete astrometric record for 04EV95. 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 (04EV95) followed by the observatory code and reference code for the source of the astrometry.

2004 03  15.45862  13 30 41.32   -06 56 14.9   23.1R 04EV95    695  Ck5138      
2004 03  16.35252  13 30 37.82   -06 55 50.1         04EV95    695  Ck5138      
2004 03  16.44820  13 30 37.43   -06 55 47.2         04EV95    695  Ck5138      
2004 05  14.34180  13 26 21.46   -06 27 46.7   23.5R 04EV95    568  Ck9590      
2004 05  14.42057  13 26 21.19   -06 27 45.0         04EV95    568  Ck9590      
2004 05  26.01934  13 25 40.55   -06 23 36.0         04EV95    304  Ck9040      
2004 05  26.04913  13 25 40.47   -06 23 34.9         04EV95    304  Ck9040      
2006 04  27.12208  13 38 04.02   -07 01 39.3   22.7R 04EV95    807  Cr3590      
2006 04  27.19390  13 38 03.68   -07 01 37.3         04EV95    807  Cr3590      
2006 04  28.07554  13 37 59.75   -07 01 12.8         04EV95    807  Cr3590      
2007 05  08.14979  13 42 27.71   -07 09 27.6   23.7R 04EV95    304  Cu8895      
2007 05  08.19303  13 42 27.53   -07 09 26.6         04EV95    304  Cu8895      
2013 03  13.40044  14 16 31.13   -08 41 54.6   23.4R 04EV95    695  C~0ud8      
2013 03  13.40675  14 16 31.09   -08 41 54.3   23.7R 04EV95    G37  C~0qSW      
2013 03  13.46222  14 16 30.91   -08 41 52.9         04EV95    G37  C~0qSW      
2013 03  13.47678  14 16 30.86   -08 41 52.6         04EV95    695  C~0ud8      
2013 03  14.47278  14 16 27.82   -08 41 29.3         04EV95    695  C~0ud8      
2015 03  23.37874  14 25 47.10   -08 57 57.8   23.5R 04EV95    695  C~1Q3I      
2015 03  23.44190  14 25 46.89   -08 57 56.1         04EV95    695  C~1Q3I      
2015 03  23.50402  14 25 46.65   -08 57 54.7         04EV95    695  C~1Q3I      

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     0.19       0.00    -0.09
  2   0.0024      0.00    -0.08       0.00    -0.11
  3   0.0027      0.00    -0.19       0.00     0.12
  4   0.1640      0.00    -0.10       0.00    -0.12
  5   0.1642      0.00     0.45       0.00    -0.28
  6   0.1959      0.00    -0.21       0.00     0.20
  7   0.1960      0.00     0.04       0.00     0.73
  8   2.1154      0.00    -0.01       0.00    -0.03
  9   2.1156      0.00    -0.19       0.00    -0.03
 10   2.1180      0.00    -0.09       0.00    -0.09
 11   3.1449      0.00     0.01       0.00    -0.12
 12   3.1451      0.00     0.11       0.00    -0.22
 13   8.9937      0.00     0.26       0.00    -0.22
 14   8.9937      0.00    -0.05       0.00    -0.06
 15   8.9938      0.00    -0.16       0.00     0.05
 16   8.9939      0.00    -0.23       0.00     0.00
 17   8.9966      0.00     0.13       0.00    -0.03
 18  11.0196      0.00    -0.01       0.00     0.05
 19  11.0198      0.00     0.19       0.00     0.21
 20  11.0200      0.00    -0.12       0.00     0.08

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.

04EV95    quality flag:3

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

axisobj        39.294    39.294    39.294
ecceobj         0.188     0.188     0.188
incobj         12.318    12.318    12.318
qmin           30.954    30.953    30.955
qmax           48.215    48.211    48.219
amean          39.456    39.456    39.456
amin           39.068    39.069    39.068
amax           39.902    39.905    39.900
emean           0.188     0.188     0.188
emin            0.162     0.162     0.162
emax            0.213     0.213     0.213
imean          11.964    11.964    11.964
imin           11.197    11.198    11.197
imax           12.846    12.844    12.846
excite_mean     0.280     0.280     0.280
fracstop        1.000     1.000     1.000
cjmean          2.962     2.962     2.962

libcent 0       180.2     180.4     180.4
libamp  0        56.6      56.4      57.4
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       179.5     179.6     179.4
kozaiamp        180.0     180.0     180.0