Orbit Fit and Astrometric record for 07OR10

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.

# Object: 07OR10    
# Created Sat Feb 14 02:36:54 2009
# Orbit generated from Bernstein formalism
# Fitting   33 observations of   33
# Arc:   6.99y
# First observation: 2001/08/27
#  Last observation: 2008/08/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000118   0.005392   0.000068   0.003166   0.011747   0.000000
# Chi-squared of fit:   124.49 DOF:   60 RMS:  0.34
# Min/Max residuals:    -0.86    0.89
# Exact a, adot, b, bdot, g, gdot:
  7.001783E-06  5.528098E-03  5.087936E-06  3.247514E-03  1.207270E-02  3.218221E-03
# Covariance matrix:
  4.4726E-13 -2.4734E-13  9.7228E-14 -1.1843E-13 -3.7821E-13 -4.9972E-12
 -2.4734E-13  2.4752E-13 -1.1432E-13  1.3924E-13  4.4988E-13  5.8757E-12
  9.7228E-14 -1.1432E-13  3.2857E-13 -1.1049E-13 -2.2350E-13 -2.8213E-12
 -1.1843E-13  1.3924E-13 -1.1049E-13  8.9761E-14  2.7171E-13  3.4354E-12
 -3.7821E-13  4.4988E-13 -2.2350E-13  2.7171E-13  1.1395E-12  1.1489E-11
 -4.9972E-12  5.8757E-12 -2.8213E-12  3.4354E-12  1.1489E-11  1.4501E-10
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.102387  -31.734756   -0.095529   -0.089600   -1.001874  2452148.760443
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           95.89982 +/-     0.181
Argument of Peri:      206.44441 +/-     0.097
Long of Asc Node:      336.82552 +/-     0.000
Inclination:            30.85679 +/-     0.001
Eccentricity:         0.50221925 +/-    0.0007
Semi-Major Axis:     66.73810295 +/-    0.0509
Time of Perihelion: 2399091.8317 +/-      79.6
Perihelion:          33.22094310 +/-    0.0514
Aphelion:           100.25526281 +/-    0.0886
Period (y)              545.2165 +/-      0.62
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           71.07710746 +/-    0.0062
Ecliptic Y          -43.83753480 +/-    0.0038
Ecliptic Z           -7.36623270 +/-    0.0006
Ecliptic XDOT         0.00132473 +/-    0.0000
Ecliptic YDOT         0.00065067 +/-    0.0000
Ecliptic ZDOT         0.00066886 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   83.83284587 +/-    0.0056
Geocenter to KBO     82.83151880 +/-    0.0073
# Hcoef:  1.91

The following table shows the complete astrometric record for 07OR10. 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 (07OR10) followed by the observatory code and reference code for the source of the astrometry.

2001 08  27.25970  22 09 05.05   -16 51 27.3   20.5V 07OR10    644  C~033v      
2002 08  11.47021  22 10 43.58   -16 31 06.0   19.9V 07OR10    644  C~033v      
2002 08  18.43519  22 10 25.76   -16 32 32.8   20.9V 07OR10    644  C~033v      
2002 08  19.34687  22 10 23.47   -16 32 43.7   20.4V 07OR10    644  C~033v      
2002 08  19.40984  22 10 23.28   -16 32 45.6   20.7V 07OR10    644  C~033v      
2002 09  15.25204  22 09 15.26   -16 37 42.6   20.8V 07OR10    644  C~033v      
2002 09  15.29421  22 09 15.13   -16 37 42.2   20.8V 07OR10    644  C~033v      
2007 07  17.39416  22 16 18.15   -15 02 01.3   21.4R 07OR10    675  C~033v      
2007 07  17.44407  22 16 18.06   -15 02 00.8   21.7R 07OR10    675  C~033v      
2007 07  18.33050  22 16 16.33   -15 02 10.5   21.3R 07OR10    675  C~033v      
2007 07  18.37190  22 16 16.21   -15 02 10.5   21.4R 07OR10    675  C~033v      
2007 07  21.37688  22 16 10.07   -15 02 44.7         07OR10    675  C~033v      
2007 08  08.27766  22 15 29.58   -15 06 17.6         07OR10    675  C~033v      
2007 08  08.37322  22 15 29.36   -15 06 19.2         07OR10    675  C~033v      
2007 08  08.46937  22 15 29.12   -15 06 20.0         07OR10    675  C~033v      
2007 09  05.28307  22 14 19.50   -15 11 54.4         07OR10    675  C~033v      
2007 09  05.37887  22 14 19.24   -15 11 55.2         07OR10    675  C~033v      
2007 10  15.09816  22 12 55.32   -15 17 17.8         07OR10    675  C~033v      
2007 10  16.09672  22 12 53.78   -15 17 21.9         07OR10    675  C~033v      
2007 10  16.23457  22 12 53.57   -15 17 22.6         07OR10    675  C~033v      
2008 06  12.47359  22 17 58.95   -14 40 50.9         07OR10    675  C~033v      
2008 06  16.43318  22 17 55.82   -14 41 11.6         07OR10    675  C~033v      
2008 06  17.43780  22 17 54.91   -14 41 17.5         07OR10    675  C~033v      
2008 07  03.37380  22 17 35.37   -14 43 15.9         07OR10    675  C~033v      
2008 07  03.48126  22 17 35.22   -14 43 16.3         07OR10    675  C~033v      
2008 07  04.37120  22 17 33.85   -14 43 25.0         07OR10    675  C~033v      
2008 07  04.46685  22 17 33.67   -14 43 25.7         07OR10    675  C~033v      
2008 08  06.36075  22 16 26.85   -14 49 27.2   21.2R 07OR10    675  C~033v      
2008 08  06.40574  22 16 26.76   -14 49 27.6   21.3R 07OR10    675  C~033v      
2008 08  08.27276  22 16 22.25   -14 49 51.3   21.5R 07OR10    675  C~033v      
2008 08  08.31672  22 16 22.17   -14 49 51.5   21.4R 07OR10    675  C~033v      
2008 08  23.03630  22 15 45.67   -14 52 51.8         07OR10    807  C~033v      
2008 08  23.11179  22 15 45.48   -14 52 52.6         07OR10    807  C~033v      

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     0.05       0.00    -0.17
  2   0.9561   1756.73    -0.38     640.21     0.54
  3   0.9752   1486.34    -0.42     650.10     0.25
  4   0.9777   1451.69     0.50     651.60     0.22
  5   0.9778   1448.46    -0.24     650.79    -0.71
  6   1.0513    428.80     0.23     719.57    -0.38
  7   1.0514    427.19     0.14     720.60     0.50
  8   5.8867   8186.53     0.16    3900.47    -0.86
  9   5.8869   8185.49     0.67    3901.41     0.06
 10   5.8893   8158.57     0.89    3901.42    -0.07
 11   5.8894   8156.95     0.57    3902.05     0.54
 12   5.8977   8061.49    -0.27    3902.28    -0.02
 13   5.9467   7436.75    -0.33    3915.28    -0.02
 14   5.9469   7433.19    -0.28    3914.93    -0.48
 15   5.9472   7429.66    -0.19    3915.44    -0.11
 16   6.0233   6367.50     0.28    3966.09    -0.42
 17   6.0236   6363.70     0.13    3966.70    -0.08
 18   6.1323   5113.10    -0.23    4100.85     0.04
 19   6.1351   5090.81    -0.31    4105.00     0.07
 20   6.1355   5087.72    -0.31    4105.43    -0.09
 21   6.7932  10013.31    -0.21    4556.49     0.00
 22   6.8040   9963.35    -0.22    4553.68     0.11
 23   6.8068   9948.87    -0.43    4552.97     0.09
 24   6.8504   9640.95    -0.31    4545.42     0.12
 25   6.8507   9638.77     0.13    4545.83     0.55
 26   6.8531   9617.04    -0.12    4544.93    -0.14
 27   6.8534   9614.35    -0.42    4545.22     0.16
 28   6.9435   8577.80    -0.05    4558.92     0.30
 29   6.9436   8576.44     0.27    4559.02     0.34
 30   6.9487   8506.76    -0.41    4560.54    -0.27
 31   6.9488   8505.60     0.09    4560.78    -0.09
 32   6.9891   7945.99     0.47    4583.62    -0.04
 33   6.9893   7943.13     0.55    4583.87     0.06

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.

07OR10    quality flag:2

Type:     10:3EEEEEE10:3EEEEEE  SCATNEAR

axisobj       66.986    67.139    66.839
ecceobj        0.499     0.501     0.497
incobj        30.717    30.717    30.718
qmin          32.877    32.817    30.830
qmax         103.359   103.267   105.639
amean         67.186    67.186    67.055
amin          66.297    66.345    65.002
amax          68.404    68.447    68.676
emean          0.469     0.451     0.516
emin           0.444     0.388     0.489
emax           0.511     0.512     0.540
imean         33.766    34.606    30.885
imin          31.710    31.723    29.713
imax          34.766    37.054    32.141
fracstop       1.000     1.000     1.000
cjmean         2.641     2.639     2.643

libcent 0      182.0     167.7    -180.0
libamp  0      121.1      84.0    -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      253.9     237.3     184.4
kozaiamp        48.9      29.9     180.0