Orbit Fit and Astrometric record for 05RH52

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: 05RH52    
# Created Sat Oct 21 01:37:37 2017
# Orbit generated from Bernstein formalism
# Fitting   27 observations of   27
# Arc:   3.89y
# First observation: 2005/09/03
#  Last observation: 2009/07/25
Preliminary a, adot, b, bdot, g, gdot:
   0.000142   0.033006   0.000057   0.009840   0.025844   0.000000
# Chi-squared of fit:    30.43 DOF:   48 RMS:  0.19
# Min/Max residuals:    -0.43    0.40
# Exact a, adot, b, bdot, g, gdot:
  1.956023E-05  3.346228E-02  7.889829E-06  9.974738E-03  2.627727E-02  1.185409E-03
# Covariance matrix:
  2.7571E-13 -2.6791E-13  3.2651E-14 -5.9291E-14 -1.1015E-13 -1.5131E-12
 -2.6791E-13  6.7578E-13 -1.0528E-13  2.0672E-13  6.6508E-13  5.0574E-12
  3.2651E-14 -1.0528E-13  1.8653E-13 -9.5952E-14 -1.1191E-13 -8.3213E-13
 -5.9291E-14  2.0672E-13 -9.5952E-14  1.0134E-13  2.3207E-13  1.6470E-12
 -1.1015E-13  6.6508E-13 -1.1191E-13  2.3207E-13  9.5280E-13  5.5177E-12
 -1.5131E-12  5.0574E-12 -8.3213E-13  1.6470E-12  5.5177E-12  4.0125E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   12.415409  -18.792991    0.004153    0.217697   -0.988471  2453616.804973
# Heliocentric elements and errors
Epoch:              2453610.5000  =  2005/08/28
Mean Anomaly:            0.43815 +/-     0.002
Argument of Peri:       32.36448 +/-     0.025
Long of Asc Node:      306.13256 +/-     0.001
Inclination:            20.45954 +/-     0.000
Eccentricity:         0.74318506 +/-    0.0001
Semi-Major Axis:    151.82401380 +/-    0.0732
Time of Perihelion: 2452778.8623 +/-       4.5
Perihelion:          38.99067506 +/-    0.0255
Aphelion:           264.65735253 +/-    0.1287
Period (y)             1870.7636 +/-      1.35
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.13728641 +/-    0.0013
Ecliptic Y          -12.30364444 +/-    0.0004
Ecliptic Z            8.18222139 +/-    0.0003
Ecliptic XDOT         0.00102763 +/-    0.0000
Ecliptic YDOT         0.00332701 +/-    0.0000
Ecliptic ZDOT         0.00104155 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.04141241 +/-    0.0012
Geocenter to KBO     38.05570037 +/-    0.0014
# Hcoef:  7.49

The following table shows the complete astrometric record for 05RH52. 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 (05RH52) followed by the observatory code and reference code for the source of the astrometry.

2005 09  03.30423  22 31 51.90   +04 08 06.6   23.8g 05RH52    568  C~0X5h      
2005 09  03.34089  22 31 51.72   +04 08 06.1   24.3g 05RH52    568  C~0X5h      
2005 09  03.37755  22 31 51.53   +04 08 05.2   24.1g 05RH52    568  C~0X5h      
2005 09  05.27423  22 31 42.64   +04 07 21.5   24.1g 05RH52    568  C~0X5h      
2006 09  18.38911  22 36 58.61   +05 16 53.8   23.4r 05RH52    568  C~0X5h      
2006 09  18.43133  22 36 58.42   +05 16 52.6   23.3r 05RH52    568  C~0X5h      
2006 09  18.46363  22 36 58.29   +05 16 51.7   23.6r 05RH52    568  C~0X5h      
2006 09  19.22628  22 36 54.96   +05 16 31.6   23.8r 05RH52    568  C~0X5h      
2006 09  19.34272  22 36 54.46   +05 16 28.5   23.7r 05RH52    568  C~0X5h      
2006 09  19.36133  22 36 54.35   +05 16 28.3   23.7r 05RH52    568  C~0X5h      
2006 09  20.23813  22 36 50.52   +05 16 04.5   23.6r 05RH52    568  C~0X5h      
2006 11  23.13558  22 34 22.47   +04 50 36.2         05RH52    695  C~0X5h      
2006 11  24.15648  22 34 22.98   +04 50 23.1         05RH52    695  C~0X5h      
2006 11  24.16581  22 34 22.98   +04 50 23.0         05RH52    695  C~0X5h      
2007 09  14.28157  22 43 33.57   +06 33 15.4   23.1r 05RH52    568  C~0X5h      
2007 09  14.31239  22 43 33.41   +06 33 14.5   23.1r 05RH52    568  C~0X5h      
2007 09  14.33647  22 43 33.32   +06 33 13.9   23.1r 05RH52    568  C~0X5h      
2007 11  09.09328  22 40 35.97   +06 08 11.5   21.6r 05RH52    695  C~0X5h      
2007 11  09.20139  22 40 35.84   +06 08 09.0   21.9r 05RH52    695  C~0X5h      
2008 10  23.14652  22 47 18.33   +07 28 20.7   22.7r 05RH52    695  C~0X5h      
2008 10  23.29667  22 47 17.92   +07 28 16.6   23.3r 05RH52    695  C~0X5h      
2008 10  24.14400  22 47 15.73   +07 27 52.4   22.4r 05RH52    695  C~0X5h      
2009 06  20.41605  23 00 47.55   +09 02 48.2         05RH52    695  C~0X5h      
2009 06  20.45071  23 00 47.56   +09 02 49.1         05RH52    695  C~0X5h      
2009 06  21.39920  23 00 47.11   +09 03 13.5         05RH52    695  C~0X5h      
2009 07  25.36953  22 59 41.06   +09 11 12.7         05RH52    675  C~0X5h      
2009 07  25.48306  22 59 40.69   +09 11 12.9         05RH52    675  C~0X5h      

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     0.12       0.00    -0.39
  2   0.0001     -2.68     0.17       0.55    -0.05
  3   0.0002     -5.65    -0.06       0.79    -0.03
  4   0.0054   -145.31    -0.24      10.55     0.04
  5   1.0406   5803.83    -0.41    2096.35     0.09
  6   1.0407   5800.75    -0.43    2096.31     0.01
  7   1.0408   5798.61    -0.23    2096.20    -0.12
  8   1.0429   5744.92     0.11    2096.26    -0.01
  9   1.0432   5736.82     0.40    2096.20    -0.12
 10   1.0433   5735.22     0.14    2096.63     0.30
 11   1.0457   5673.22     0.09    2096.07     0.02
 12   1.2206   3047.22     0.10    1512.20    -0.01
 13   1.2234   3049.34     0.24    1497.19     0.02
 14   1.2234   3049.30     0.19    1497.10     0.06
 15   2.0287  13000.85     0.12    4142.60     0.25
 16   2.0288  12998.29    -0.15    4142.65     0.24
 17   2.0288  12996.81     0.16    4142.59     0.14
 18   2.1815   9972.78    -0.13    3734.95    -0.01
 19   2.1818   9970.04    -0.23    3733.36    -0.12
 20   3.1371  17363.45     0.08    5974.97     0.10
 21   3.1376  17356.21     0.07    5973.41     0.23
 22   3.1399  17316.68    -0.20    5962.94    -0.20
 23   3.7950  30811.07    -0.29    6858.53    -0.16
 24   3.7951  30811.54     0.09    6859.33    -0.31
 25   3.7977  30814.34    -0.07    6884.79    -0.20
 26   3.8907  30063.48     0.15    7695.16     0.17
 27   3.8910  30058.35     0.21    7697.35     0.05

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.

05RH52    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj       158.086   158.324   157.851
ecceobj         0.753     0.754     0.753
incobj         20.446    20.446    20.446
qmin           36.754    37.081    37.503
qmax          282.848   285.385   281.895
amean         153.784   154.810   153.406
amin          149.417   150.748   149.314
amax          160.707   161.943   160.430
emean           0.750     0.750     0.746
emin            0.739     0.739     0.736
emax            0.762     0.762     0.757
imean          21.011    21.302    21.863
imin           20.492    20.957    21.523
imax           22.205    22.238    22.240
excite_mean     0.831     0.834     0.834
fracstop        1.000     1.000     1.000
cjmean          2.987     2.987     2.987

libcent 0      -180.0    -180.0     164.5
libamp  0      -180.0    -180.0     143.4
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        82.6      67.5      57.0
kozaiamp         50.2      31.8      23.9