Orbit Fit and Astrometric record for 33001

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: 33001     
# Created Wed Oct  1 01:36:24 2014
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   39 observations of   41
# Arc:  16.10y
# First observation: 1997/02/06
#  Last observation: 2013/03/13
# Chi-squared of fit:   220.53 DOF:   72 RMS:  0.42
# Min/Max residuals:    -2.16    1.38
# Exact a, adot, b, bdot, g, gdot:
  1.576320E-05  2.104811E-02 -1.876979E-07 -2.809215E-04  2.278037E-02 -6.621070E-04
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.256022  111.951902   -0.429850    0.019519   -0.897014  2450485.766170
# Heliocentric elements and errors
Epoch:              2450486.5000  =  1997/02/07
Mean Anomaly:          210.96580 +/-     0.000
Argument of Peri:      273.91208 +/-     0.000
Long of Asc Node:      349.97372 +/-     0.000
Inclination:             1.45990 +/-     0.000
Eccentricity:         0.04183006 +/-    0.0000
Semi-Major Axis:     43.21943583 +/-    0.0000
Time of Perihelion: 2493450.0841 +/-       0.0
Perihelion:          41.41156438 +/-    0.0000
Aphelion:            45.02730728 +/-    0.0000
Period (y)              284.1364 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -17.13449376 +/-    0.0000
Ecliptic Y           41.37037331 +/-    0.0000
Ecliptic Z            0.96222127 +/-    0.0000
Ecliptic XDOT        -0.00231074 +/-    0.0000
Ecliptic YDOT        -0.00101300 +/-    0.0000
Ecliptic ZDOT        -0.00003568 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.78867850 +/-    0.0000
Geocenter to KBO     43.89751125 +/-    0.0000
# Hcoef:  6.53

The following table shows the complete astrometric record for 33001. 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 (33001) followed by the observatory code and reference code for the source of the astrometry.

1997 02  06.26545  07 35 44.16   +22 53 23.3   22.5R 33001     568  C30145      
1997 02  06.31081  07 35 43.96   +22 53 23.8         33001     568  C30145      
1997 02  06.36374  07 35 43.73   +22 53 24.2         33001     568  C30145      
1997 02  07.34132  07 35 39.39   +22 53 33.2         33001     568  C30145      
1997 02  07.39706  07 35 39.12   +22 53 33.6         33001     568  C30145      
1997 02  09.27626  07 35 30.95   +22 53 50.6         33001     568  C30145      
1997 02  09.30450  07 35 30.80   +22 53 50.9         33001     568  C30145      
1997 02  09.33337  07 35 30.68   +22 53 51.0         33001     568  C30145      
1997 03  03.17494  07 34 10.91   +22 56 20.7         33001     696  C30196      
1997 03  03.25022  07 34 10.67   +22 56 21.2         33001     696  C30196      
1997 03  03.30720  07 34 10.52   +22 56 21.2         33001     696  C30196      
1997 03  07.25625  07 33 59.77   +22 56 39.0         33001     696  C30196      
1997 09  23.59541  07 46 12.72   +22 25 37.5         33001     568  Ca0010      
1997 09  23.62860  07 46 12.81   +22 25 37.2         33001     568  Ca0010      
1997 09  24.60306  07 46 15.69   +22 25 31.5         33001     568  Ca0010      
1997 09  24.62459  07 46 15.75   +22 25 31.2         33001     568  Ca0010      
1998 12  18.21546  07 50 02.43   +22 16 40.6         33001     950  Ca3586      
1998 12  18.24212  07 50 02.34   +22 16 41.3         33001     950  Ca3586      
1998 12  19.12082  07 49 58.59   +22 16 51.6         33001     950  Ca3586      
1998 12  19.17019  07 49 58.44   +22 16 52.1         33001     950  Ca3586      
1999 12  28.34281  07 54 25.23   +22 04 05.1         33001     695  Ca8382      
1999 12  28.39806  07 54 25.21   +22 04 06.0   22.5R 33001     695  Ca8382      
1999 12  28.44593  07 54 25.04   +22 04 06.1         33001     695  Ca8382      
1999 12  28.50899  07 54 24.74   +22 04 04.7         33001     695  Ca8382      
1999 12  28.53983  07 54 24.88   +22 04 05.0         33001     695  Ca8382      
1999 12  29.33880  07 54 20.84   +22 04 17.4         33001     695  Ca8382      
1999 12  29.35389  07 54 20.77   +22 04 18.1   22.2R 33001     695  Ca8382      
1999 12  29.42542  07 54 20.45   +22 04 18.9   22.5R 33001     695  Ca8382      
1999 12  29.43251  07 54 20.38   +22 04 19.2   22.7R 33001     695  Ca8382      
2000 01  03.30001  07 53 57.41   +22 05 22.5   22.7R 33001     697  Ca8382      
2000 01  03.36946  07 53 57.09   +22 05 23.4   22.8R 33001     697  Ca8382      
2000 01  03.42897  07 53 56.79   +22 05 24.0   23.2R 33001     697  Ca8382      
2000 01  05.26728  07 53 47.91   +22 05 48.5   22.9R 33001     697  Ca8382      
2000 01  05.44544  07 53 47.03   +22 05 50.7   22.7R 33001     697  Ca8382      
2001 12  12.14498  08 05 43.09   +21 29 40.8         33001     950  Ce2814      
2001 12  12.18418  08 05 42.95   +21 29 41.2         33001     950  Ce2814      
2001 12  13.15381  08 05 39.38   +21 29 52.6         33001     950  Ce2814      
2001 12  13.17722  08 05 39.28   +21 29 52.8         33001     950  Ce2814      
2013 03  13.12295  08 54 12.95   +18 24 09.3   22.7R 33001     695  C~0uim      
2013 03  13.20158  08 54 12.68   +18 24 10.3         33001     695  C~0uim      
2013 03  14.13328  08 54 09.57   +18 24 21.8         33001     695  C~0uim      

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    -0.14       0.00     0.52
  2   0.0001      0.00    -0.12       0.00     0.10
  3   0.0003      0.00     0.05       0.00     0.01
  4   0.0029      0.00     0.06       0.00     0.14
  5   0.0031      0.00    -0.23       0.00     0.03
  6   0.0082      0.00     0.30       0.00     0.38
  7   0.0083      0.00    -0.09       0.00     0.42
  8   0.0084      0.00     0.02       0.00     0.27
  9   0.0682      0.00     0.23       0.00    -0.43
 10   0.0684      0.00    -0.04       0.00    -0.29
 11   0.0686      0.00     0.22       0.00    -0.55
 12   0.0794      0.00    -0.50       0.00    -0.33
 13   0.6279      0.00    -0.21       0.00    -0.04
 14   0.6280      0.00    -0.32       0.00    -0.15
 15   0.6306      0.00    -0.27       0.00     0.01
 16   0.6307      0.00    -0.29       0.00    -0.17
 17   1.8616      0.00     0.18       0.00    -0.48
 18   1.8617      0.00     0.56       0.00    -0.09
 19   1.8641      0.00     0.39       0.00    -0.12
 20   1.8642      0.00     1.38       0.00    -0.20
 21   2.8886      0.00 (  -3.57)      0.00 (   0.35)
 22   2.8888      0.00     0.01       0.00     0.54
 23   2.8889      0.00     0.83       0.00     0.03
 24   2.8891      0.00     0.75       0.00    -2.16
 25   2.8892      0.00 (   5.01)      0.00 (  -2.25)
 26   2.8914      0.00    -0.26       0.00    -0.19
 27   2.8914      0.00    -0.24       0.00     0.31
 28   2.8916      0.00     0.03       0.00     0.19
 29   2.8916      0.00    -0.52       0.00     0.40
 30   2.9050      0.00     0.16       0.00     0.18
 31   2.9051      0.00     0.45       0.00     0.17
 32   2.9053      0.00     0.30       0.00    -0.01
 33   2.9103      0.00     0.09       0.00     0.27
 34   2.9108      0.00     0.06       0.00     0.12
 35   4.8457      0.00    -0.35       0.00     0.49
 36   4.8458      0.00    -0.25       0.00     0.43
 37   4.8484      0.00    -0.26       0.00     0.43
 38   4.8485      0.00    -0.42       0.00     0.36
 39  16.0954      0.00    -0.04       0.00    -0.11
 40  16.0957      0.00    -0.01       0.00    -0.11
 41  16.0982      0.00     0.15       0.00    -0.20

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.

33001    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.530    43.530    43.530
ecceobj         0.034     0.034     0.034
incobj          1.456     1.456     1.456
qmin           41.287    41.283    41.294
qmax           45.899    45.905    45.889
amean          43.491    43.491    43.491
amin           43.159    43.159    43.154
amax           43.833    43.833    43.831
emean           0.031     0.031     0.031
emin            0.013     0.013     0.013
emax            0.047     0.048     0.047
imean           2.498     2.498     2.498
imin            1.695     1.695     1.696
imax            3.185     3.185     3.185
excite_mean     0.054     0.054     0.054
fracstop        1.000     1.000     1.000
cjmean          3.092     3.092     3.092

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       172.7     172.7     172.6
kozaiamp        180.0     180.0     180.0