Orbit Fit and Astrometric record for 94EV3

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: 94EV3     
# Created Fri Dec 15 02:36:53 2017
# Orbit generated from Bernstein formalism
# Fitting   40 observations of   41
# Arc:  21.11y
# First observation: 1994/03/13
#  Last observation: 2015/04/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.000163   0.022346   0.000050  -0.000645   0.025550   0.000000
# Chi-squared of fit:   499.91 DOF:   74 RMS:  0.62
# Min/Max residuals:    -1.86    1.11
# Exact a, adot, b, bdot, g, gdot:
  1.803908E-05  2.104657E-02 -5.249243E-06 -6.091983E-04  2.285434E-02  4.365262E-04
# Covariance matrix:
  8.6412E-14 -5.6471E-15 -1.2005E-16  1.0100E-16  5.8668E-14 -7.6317E-15
 -5.6471E-15  2.5208E-14  7.5325E-16 -6.8076E-16  4.1730E-14  5.2277E-14
 -1.2005E-16  7.5325E-16  4.7271E-14 -3.9680E-15  1.2189E-15  1.6643E-15
  1.0100E-16 -6.8076E-16 -3.9680E-15  1.4738E-15 -1.1134E-15 -1.5034E-15
  5.8668E-14  4.1730E-14  1.2189E-15 -1.1134E-15  1.7067E-13  8.5696E-14
 -7.6317E-15  5.2277E-14  1.6643E-15 -1.5034E-15  8.5696E-14  1.1544E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.032617 -161.008363    0.445457    0.000529   -0.888769  2449424.988597
# Heliocentric elements and errors
Epoch:              2449420.5000  =  1994/03/09
Mean Anomaly:          164.53428 +/-     0.027
Argument of Peri:       13.27833 +/-     0.023
Long of Asc Node:       19.52411 +/-     0.000
Inclination:             1.65698 +/-     0.000
Eccentricity:         0.03680902 +/-    0.0000
Semi-Major Axis:     43.11553221 +/-    0.0026
Time of Perihelion: 2505566.2857 +/-       6.7
Perihelion:          41.52849151 +/-    0.0031
Aphelion:            44.70257290 +/-    0.0033
Period (y)              283.1124 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -42.35946387 +/-    0.0007
Ecliptic Y          -14.11461668 +/-    0.0003
Ecliptic Z            0.02469396 +/-    0.0000
Ecliptic XDOT         0.00077608 +/-    0.0000
Ecliptic YDOT        -0.00240502 +/-    0.0000
Ecliptic ZDOT        -0.00007307 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.64915669 +/-    0.0007
Geocenter to KBO     43.75535806 +/-    0.0008
# Hcoef:  7.13

The following table shows the complete astrometric record for 94EV3. 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 (94EV3) followed by the observatory code and reference code for the source of the astrometry.

1994 03  13.4879   13 10 08.82   -07 24 27.2   23.3R 94EV3     568  A23286      
1994 03  13.5000   13 10 08.79   -07 24 27.2         94EV3     568  A23286      
1994 03  13.5120   13 10 08.74   -07 24 26.9         94EV3     568  A23286      
1994 03  14.5250   13 10 04.86   -07 24 04.8         94EV3     568  A23286      
1994 03  14.5408   13 10 04.80   -07 24 04.1         94EV3     568  A23286      
1994 03  15.5385   13 10 01.00   -07 23 41.6         94EV3     568  A23286      
1994 03  15.5508   13 10 00.99   -07 23 41.3         94EV3     568  A23286      
1994 03  15.5976   13 10 00.75   -07 23 40.3         94EV3     568  A23286      
1994 04  13.4916   13 07 59.79   -07 11 30.8   23. R 94EV3     568  A23389      
1994 04  13.5038   13 07 59.71   -07 11 30.3         94EV3     568  A23389      
1994 04  15.4842   13 07 51.26   -07 10 39.7         94EV3     568  A23389      
1994 05  05.40132  13 06 30.25   -07 02 31.2   23.2V 94EV3     568  C23582      
1994 05  05.48792  13 06 29.98   -07 02 28.9         94EV3     568  C23582      
1994 05  07.34912  13 06 23.06   -07 01 46.9   23.5V 94EV3     568  C23582      
1994 05  10.89722  13 06 10.30   -07 00 30.8   23.4R 94EV3     950  C23646      
1994 06  07.2909   13 04 54.99   -06 52 57.3         94EV3     568  A23582      
1994 06  07.3065   13 04 54.99   -06 52 57.3         94EV3     568  A23582      
1994 06  07.3432   13 04 54.89   -06 52 56.8         94EV3     568  A23582      
1994 06  07.3481   13 04 54.86   -06 52 56.6         94EV3     568  A23582      
1995 02  25.5504   13 15 30.47   -07 59 10.6   23.5R 94EV3     568  A24813      
1995 02  25.5595   13 15 30.44   -07 59 10.4         94EV3     568  A24813      
1995 02  26.5354   13 15 27.59   -07 58 54.0         94EV3     568  A24813      
1995 02  27.5361   13 15 24.62   -07 58 36.9         94EV3     568  A24813      
1995 02  27.5469   13 15 24.59   -07 58 36.5         94EV3     568  A24813      
1995 04  01.0377   13 13 22.37   -07 46 29.7         94EV3     950  C25182      
1995 04  01.1500   13 13 21.97   -07 46 25.1   23.8R 94EV3     950  C25029      
1997 06  03.23343  13 18 18.54   -08 21 07.7         94EV3     711  C30029      
1997 06  03.24113  13 18 18.69   -08 21 09.7         94EV3     711  C30029      
1997 06  04.21633  13 18 16.24   -08 20 53.3         94EV3     711  C30029      
1997 06  04.23987  13 18 16.23   -08 20 52.8         94EV3     711  C30029      
1997 06  04.28622  13 18 16.18   -08 20 53.4         94EV3     711  C30029      
1997 06  04.29476  13 18 16.04   -08 20 52.4         94EV3     711  C30029      
1998 05  24.94307  13 23 11.07   -08 52 25.2         94EV3     950  Ca1681      
1998 05  25.00008  13 23 10.89   -08 52 24.5         94EV3     950  Ca1681      
1998 05  25.04237  13 23 10.77   -08 52 23.0         94EV3     950  Ca1681      
1998 06  23.18818  13 22 09.52   -08 46 25.6   23.3R 94EV3     705  Ca1681      
1998 06  24.22135  13 22 08.48   -08 46 19.8         94EV3     705  Ca1681      
2000 06  28.94307  13 30 53.21   -09 42 18.8         94EV3     950  Cb7358      
2000 06  29.91659  13 30 52.56   -09 42 14.9         94EV3     950  Cb7358      
2015 04  24.25229  14 43 31.30   -16 33 33.2   23.4R 94EV3     G37  C~1Re7      
2015 04  24.42161  14 43 30.54   -16 33 29.6         94EV3     G37  C~1Re7      

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    -0.72       0.00     1.00
  2   0.0000     -0.41    -0.38      -0.17     0.84
  3   0.0001     -1.21    -0.44      -0.17     0.84
  4   0.0028    -63.00    -0.36      -1.62    -0.27
  5   0.0029    -64.09    -0.46      -1.31     0.05
  6   0.0056   -124.93     0.26      -1.93    -0.24
  7   0.0056   -125.18     0.78      -1.71    -0.01
  8   0.0058   -128.86     0.05      -2.14    -0.41
  9   0.0849  -2070.86    -0.03     -11.00     0.43
 10   0.0849  -2072.15    -0.47     -10.99     0.45
 11   0.0903  -2207.71     0.22     -12.04     0.09
 12   0.1449  -3508.94    -0.67     -19.52    -0.35
 13   0.1451  -3513.54     0.06     -18.92     0.30
 14   0.1502  -3624.82    -0.06     -19.36     0.49
 15   0.1599  -3829.52     0.73     -21.44    -0.29
 16   0.2349  -5039.64     0.17     -30.18     1.03
 17   0.2350  -5039.64     0.65     -30.18     1.04
 18   0.2351  -5041.21     0.21     -30.29     0.96
 19   0.2351  -5041.70    -0.13     -30.27     0.98
 20   0.9557   5215.13    -0.02    -122.33    -1.03
 21   0.9557   5214.64    -0.07    -122.31    -1.01
 22   0.9584   5169.22     0.05    -123.05    -1.42
 23   0.9611   5121.88     0.42    -123.82    -1.84
 24   0.9611   5121.32     0.39    -123.62    -1.63
 25   1.0501   3164.50     0.08    -135.09    -1.86
 26   1.0504   3157.26     0.62    -133.07     0.24
 27   3.2245   8025.53    -0.73    -405.95    -0.56
 28   3.2245   8028.34 (   2.39)   -406.97 (  -1.58)
 29   3.2272   7988.43    -0.76    -405.39     0.25
 30   3.2272   7988.10    -0.18    -404.99     0.67
 31   3.2274   7987.64     1.11    -405.82    -0.15
 32   3.2274   7985.33    -0.87    -405.67     0.01
 33   4.1984  12763.45     0.24    -528.57     0.13
 34   4.1985  12760.70     0.35    -528.91    -0.18
 35   4.1986  12758.48     0.25    -528.18     0.57
 36   4.2784  11779.35    -0.23    -534.24     0.60
 37   4.2813  11762.83    -0.37    -534.60     0.44
 38   6.2956  20275.26     0.03    -785.57    -0.18
 39   6.2982  20264.79     0.32    -785.46     0.00
 40  21.1137  94255.68    -0.05   -2827.05    -0.13
 41  21.1141  94241.78     0.04   -2826.82     0.18

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.

94EV3    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.648    42.655    42.640
ecceobj         0.048     0.048     0.048
incobj          1.661     1.661     1.661
qmin           39.721    39.675    39.682
qmax           46.346    46.420    46.456
amean          42.949    42.956    42.941
amin           42.616    42.623    42.610
amax           43.294    43.306    43.292
emean           0.053     0.053     0.054
emin            0.031     0.030     0.031
emax            0.072     0.072     0.073
imean           1.825     1.823     1.828
imin            0.438     0.426     0.452
imax            2.741     2.741     2.744
excite_mean     0.063     0.063     0.063
fracstop        1.000     1.000     1.000
cjmean          3.084     3.084     3.084

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       180.4     180.3     180.4
kozaiamp        180.0     180.0     179.9