Orbit Fit and Astrometric record for 10RF43

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: 10RF43    
# Created Sun Oct 26 01:37:51 2014
# Orbit generated from Bernstein formalism
# Fitting   34 observations of   36
# Arc:   2.04y
# First observation: 2010/09/06
#  Last observation: 2012/09/18
Preliminary a, adot, b, bdot, g, gdot:
   0.000012   0.014960   0.000003   0.005525   0.019401   0.000000
# Chi-squared of fit:    56.33 DOF:   62 RMS:  0.23
# Min/Max residuals:    -0.78    0.52
# Exact a, adot, b, bdot, g, gdot:
  1.136449E-05  1.507710E-02  5.924330E-06  5.571575E-03  1.953901E-02  4.017618E-03
# Covariance matrix:
  2.1434E-13 -1.5039E-13 -5.8341E-15 -1.4424E-14  1.4524E-13 -1.3901E-12
 -1.5039E-13  5.8431E-13 -6.2290E-14  1.9909E-13  5.0026E-13  2.0854E-11
 -5.8341E-15 -6.2290E-14  1.8009E-13 -1.7033E-13 -9.7934E-14 -2.9137E-12
 -1.4424E-14  1.9909E-13 -1.7033E-13  2.5788E-13  1.9799E-13  1.0066E-11
  1.4524E-13  5.0026E-13 -9.7934E-14  1.9799E-13  1.1287E-12  2.1159E-11
 -1.3901E-12  2.0854E-11 -2.9137E-12  1.0066E-11  2.1159E-11  1.0516E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
  -23.972675  -22.086303   -0.093352   -0.406046   -0.913132  2455445.581786
# Heliocentric elements and errors
Epoch:              2455440.5000  =  2010/09/01
Mean Anomaly:           86.80843 +/-     0.277
Argument of Peri:      193.61678 +/-     0.168
Long of Asc Node:       25.42064 +/-     0.002
Inclination:            30.60123 +/-     0.001
Eccentricity:         0.24973084 +/-    0.0016
Semi-Major Axis:     49.75446301 +/-    0.0410
Time of Perihelion: 2424530.0115 +/-      91.0
Perihelion:          37.32923895 +/-    0.0870
Aphelion:            62.17968708 +/-    0.0962
Period (y)              350.9589 +/-      0.43
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.29883860 +/-    0.0024
Ecliptic Y          -17.87393126 +/-    0.0010
Ecliptic Z          -20.79407212 +/-    0.0011
Ecliptic XDOT         0.00156549 +/-    0.0000
Ecliptic YDOT         0.00165126 +/-    0.0000
Ecliptic ZDOT         0.00048461 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   52.09854082 +/-    0.0021
Geocenter to KBO     51.17967118 +/-    0.0028
# Hcoef:  4.05

The following table shows the complete astrometric record for 10RF43. 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 (10RF43) followed by the observatory code and reference code for the source of the astrometry.

2010 09  06.08102  23 18 52.222  -30 37 34.93  21.2R 10RF43    809  C~0MhM      
2010 09  06.23100  23 18 51.577  -30 37 37.95  21.1R 10RF43    809  C~0MhM      
2010 09  06.31138  23 18 51.204  -30 37 39.61  20.9R 10RF43    809  C~0MhM      
2010 09  07.03514  23 18 48.061  -30 37 53.43  21.1R 10RF43    809  C~0MhM      
2010 09  07.07796  23 18 47.834  -30 37 54.44  21.1R 10RF43    809  C~0MhM      
2010 09  07.12056  23 18 47.637  -30 37 55.52  21.1R 10RF43    809  C~0MhM      
2010 10  08.18432  23 16 35.191  -30 43 30.13        10RF43    807  C~0NnR      
2010 10  08.23971  23 16 34.960  -30 43 30.42        10RF43    807  C~0NnR      
2010 11  14.03116  23 14 49.10   -30 36 39.9         10RF43    807  C~0ev7      
2010 11  14.13040  23 14 48.90   -30 36 37.5         10RF43    807  C~0ev7      
2011 09  06.29862  23 21 50.58   -29 58 04.2         10RF43    807  C~0ev7      
2011 09  06.33133  23 21 50.42   -29 58 04.9         10RF43    807  C~0ev7      
2011 09  07.18006  23 21 46.75   -29 58 22.3         10RF43    807  C~0ev7      
2011 09  07.26550  23 21 46.37   -29 58 23.6         10RF43    807  C~0ev7      
2011 09  28.03360  23 20 16.55   -30 03 25.2   20.7R 10RF43    304  C~0Z9O      
2011 09  28.25828  23 20 15.59   -30 03 27.1         10RF43    304  C~0Z9O      
2011 09  29.03554  23 20 12.35   -30 03 33.5         10RF43    304  C~0Z9O      
2011 09  29.10466  23 20 12.06   -30 03 34.0         10RF43    304  C~0Z9O      
2011 09  29.32405  23 20 11.13   -30 03 35.6         10RF43    304  C~0Z9O      
2011 09  30.01316  23 20 08.29   -30 03 40.9         10RF43    304  C~0Z9O      
2011 09  30.18131  23 20 07.58   -30 03 42.1         10RF43    304  C~0Z9O      
2011 09  30.23117  23 20 07.36   -30 03 42.5         10RF43    304  C~0Z9O      
2011 10  01.01522  23 20 04.14   -30 03 47.8         10RF43    304  C~0Z9O      
2011 10  01.10257  23 20 03.78   -30 03 48.5         10RF43    304  C~0Z9O      
2011 10  01.26601  23 20 03.09   -30 03 49.5         10RF43    304  C~0Z9O      
2011 10  02.01375  23 20 00.04   -30 03 54.3         10RF43    304  C~0Z9O      
2011 10  02.23291  23 19 59.13   -30 03 55.6         10RF43    304  C~0Z9O      
2011 10  02.33929  23 19 58.68   -30 03 56.2         10RF43    304  C~0Z9O      
2011 10  23.01272  23 18 42.59   -30 03 37.9   20.6R 10RF43    304  C~0ZUc      
2011 10  23.08450  23 18 42.36   -30 03 37.4         10RF43    304  C~0ZUc      
2011 10  23.23331  23 18 41.88   -30 03 35.8         10RF43    304  C~0ZUc      
2011 10  24.03166  23 18 39.37   -30 03 29.6         10RF43    304  C~0ZUc      
2011 10  24.14780  23 18 39.00   -30 03 28.6         10RF43    304  C~0ZUc      
2011 10  24.26356  23 18 38.63   -30 03 27.5         10RF43    304  C~0ZUc      
2012 09  18.53293  23 23 48.86   -29 22 31.6   20.5R 10RF43    E10  C~0ijq      
2012 09  18.61660  23 23 48.45   -29 22 32.4   20.7R 10RF43    E10  C~0ijq      

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     0.17       0.00    -0.29
  2   0.0004     -8.82     0.46       0.84    -0.42
  3   0.0006    -13.88     0.26       1.40    -0.40
  4   0.0026    -56.46 (   0.75)      6.28 (  -0.09)
  5   0.0027    -59.54     0.26       6.63    -0.02
  6   0.0028    -62.30     0.08       6.74    -0.19
  7   0.0879  -1750.75    -0.21     431.83     0.08
  8   0.0880  -1753.57    -0.46     432.83    -0.08
  9   0.1888  -2818.78     0.12    1381.43     0.52
 10   0.1890  -2820.11 (  -0.21)   1384.70 (   0.78)
 11   0.9999   3106.82    -0.31    1142.69     0.09
 12   1.0000   3104.64    -0.52    1142.96     0.15
 13   1.0023   3054.12    -0.49    1147.99    -0.07
 14   1.0026   3049.10    -0.34    1148.97     0.31
 15   1.0594   1866.64     0.04    1381.74     0.09
 16   1.0600   1854.58     0.01    1385.39     0.11
 17   1.0622   1813.86    -0.06    1397.75     0.07
 18   1.0624   1810.25     0.00    1398.92     0.11
 19   1.0630   1798.66     0.01    1402.68     0.19
 20   1.0648   1763.10     0.04    1413.79     0.06
 21   1.0653   1754.27     0.04    1416.68     0.10
 22   1.0654   1751.52    -0.10    1417.54     0.12
 23   1.0676   1711.51     0.01    1430.77     0.18
 24   1.0678   1706.99     0.03    1432.15     0.06
 25   1.0683   1698.47    -0.01    1435.11     0.15
 26   1.0703   1660.66    -0.03    1447.83     0.03
 27   1.0709   1649.44    -0.02    1451.74     0.05
 28   1.0712   1643.91    -0.15    1453.71     0.09
 29   1.1278    759.55     0.00    1894.30    -0.10
 30   1.1280    757.07     0.03    1896.03    -0.17
 31   1.1284    752.12     0.23    1900.15     0.18
 32   1.1306    725.32     0.07    1919.70    -0.04
 33   1.1309    721.41     0.10    1922.66    -0.04
 34   1.1312    717.54     0.10    1925.71     0.05
 35   2.0355   5425.38     0.49    2389.97    -0.78
 36   2.0357   5420.21     0.15    2391.60    -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.

10RF43    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        49.581    49.581    49.581
ecceobj         0.249     0.249     0.249
incobj         30.594    30.594    30.594
qmin           35.552    35.416    35.311
qmax           64.231    64.286    64.362
amean          49.550    49.549    49.552
amin           49.079    49.065    49.077
amax           50.109    50.119    50.130
emean           0.262     0.263     0.264
emin            0.242     0.244     0.245
emax            0.282     0.284     0.285
imean          30.061    30.057    30.019
imin           29.597    29.617    29.603
imax           30.636    30.602    30.547
excite_mean     0.565     0.566     0.566
fracstop        1.000     1.000     1.000
cjmean          2.750     2.750     2.750

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       188.3     188.4     186.4
kozaiamp        180.0     180.0     180.0