Orbit Fit and Astrometric record for 07RL314

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: 07RL314   
# Created Thu Oct 19 01:37:42 2017
# Orbit generated from Bernstein formalism
# Fitting   24 observations of   24
# Arc:   2.85y
# First observation: 2006/09/18
#  Last observation: 2009/07/25
Preliminary a, adot, b, bdot, g, gdot:
   0.000202   0.023642   0.000024  -0.005797   0.025193   0.000000
# Chi-squared of fit:    19.59 DOF:   42 RMS:  0.16
# Min/Max residuals:    -0.26    0.30
# Exact a, adot, b, bdot, g, gdot:
  1.434336E-05  2.388987E-02 -3.449755E-06 -5.841320E-03  2.510706E-02  7.360020E-04
# Covariance matrix:
  2.6804E-13 -2.2165E-13 -9.6837E-15  2.6729E-14  1.0918E-14 -1.4383E-12
 -2.2165E-13  4.5053E-13  5.4841E-14 -1.0160E-13  2.8444E-13  5.5504E-12
 -9.6837E-15  5.4841E-14  2.1404E-13 -1.1588E-13  7.3173E-14  9.0751E-13
  2.6729E-14 -1.0160E-13 -1.1588E-13  9.8171E-14 -9.9832E-14 -1.5612E-12
  1.0918E-14  2.8444E-13  7.3173E-14 -9.9832E-14  6.2816E-13  5.5425E-12
 -1.4383E-12  5.5504E-12  9.0751E-13 -1.5612E-12  5.5425E-12  8.5586E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   16.434766  -17.395293   -0.224789    0.277946   -0.941922  2453996.928254
# Heliocentric elements and errors
Epoch:              2453990.5000  =  2006/09/12
Mean Anomaly:          102.04478 +/-     0.162
Argument of Peri:       23.29450 +/-     0.155
Long of Asc Node:      211.14859 +/-     0.001
Inclination:            21.08920 +/-     0.000
Eccentricity:         0.04017763 +/-    0.0004
Semi-Major Axis:     40.37069907 +/-    0.0039
Time of Perihelion: 2427433.0643 +/-      41.9
Perihelion:          38.74869988 +/-    0.0151
Aphelion:            41.99269826 +/-    0.0152
Period (y)              256.5120 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           37.45660791 +/-    0.0012
Ecliptic Y          -11.50321000 +/-    0.0004
Ecliptic Z           11.26856270 +/-    0.0004
Ecliptic XDOT         0.00102899 +/-    0.0000
Ecliptic YDOT         0.00240435 +/-    0.0000
Ecliptic ZDOT        -0.00058830 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.77133579 +/-    0.0011
Geocenter to KBO     39.82943095 +/-    0.0013
# Hcoef:  6.94

The following table shows the complete astrometric record for 07RL314. 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 (07RL314) followed by the observatory code and reference code for the source of the astrometry.

2006 09  18.42750  22 30 44.86   +08 22 01.7   23.1r 07RL314   568  C~1Q3a      
2006 09  18.45984  22 30 44.72   +08 22 00.3   22.9r 07RL314   568  C~1Q3a      
2006 09  18.49307  22 30 44.56   +08 21 59.3   22.9r 07RL314   568  C~1Q3a      
2006 11  24.21787  22 28 18.30   +07 42 25.3         07RL314   695  C~1Q3a      
2006 11  25.15617  22 28 18.93   +07 42 01.5         07RL314   695  C~1Q3a      
2007 09  12.33020  22 36 50.48   +08 38 29.9   22.4r 07RL314   695  C~1Q3a      
2007 09  12.37594  22 36 50.28   +08 38 28.4   22.4r 07RL314   695  C~1Q3a      
2007 09  14.27892  22 36 41.77   +08 37 22.9   22.9r 07RL314   568  C~0D4l      
2007 09  14.30975  22 36 41.63   +08 37 21.7   23.0r 07RL314   568  C~0D4l      
2007 09  14.33380  22 36 41.53   +08 37 20.9   22.8r 07RL314   568  C~0D4l      
2007 09  16.30178  22 36 32.82   +08 36 11.5   23.0r 07RL314   568  C~0D4l      
2007 11  09.11574  22 33 52.88   +08 02 42.0   23.7r 07RL314   695  C~1Q3a      
2007 11  09.17997  22 33 52.81   +08 02 39.8   23.7r 07RL314   695  C~1Q3a      
2008 08  30.32372  22 43 24.42   +08 57 25.1   22.8r 07RL314   568  C~1Q3a      
2008 08  30.35457  22 43 24.26   +08 57 24.1   22.5r 07RL314   568  C~1Q3a      
2008 08  30.38560  22 43 24.14   +08 57 23.3   22.9r 07RL314   568  C~1Q3a      
2008 08  31.30601  22 43 19.91   +08 56 56.2         07RL314   568  C~1Q3a      
2008 11  17.133044 22 39 20.00   +08 10 33.9   22.5V 07RL314   645  C~2KuB      
2008 11  17.133873 22 39 20.00   +08 10 33.9         07RL314   645  C~2KuB      
2008 11  17.136361 22 39 20.00   +08 10 33.9         07RL314   645  C~2KuB      
2009 07  24.36568  22 51 34.47   +09 20 50.3         07RL314   675  C~1Q3a      
2009 07  24.42017  22 51 34.28   +09 20 50.2         07RL314   675  C~1Q3a      
2009 07  25.36057  22 51 31.21   +09 20 43.7         07RL314   675  C~1Q3a      
2009 07  25.44156  22 51 30.94   +09 20 43.1         07RL314   675  C~1Q3a      

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    -0.05
  2   0.0001     -2.46     0.08      -0.50    -0.26
  3   0.0002     -5.03    -0.05      -0.51     0.03
  4   0.1829  -2923.22    -0.12   -1357.27    -0.13
  5   0.1854  -2923.74    -0.06   -1382.85    -0.01
  6   0.9826   5391.60     0.10   -1158.18    -0.25
  7   0.9827   5388.28     0.24   -1158.44    -0.22
  8   0.9880   5246.56    -0.06   -1171.05     0.30
  9   0.9880   5244.18    -0.12   -1171.37     0.19
 10   0.9881   5242.50     0.02   -1171.55     0.17
 11   0.9935   5096.55    -0.24   -1186.62     0.26
 12   1.1408   2135.11     0.07   -2139.99     0.03
 13   1.1410   2133.31    -0.01   -2141.62    -0.01
 14   1.9491  11237.25     0.03   -2316.74     0.24
 15   1.9492  11234.67    -0.24   -2316.78     0.23
 16   1.9492  11232.71     0.14   -2316.85     0.19
 17   1.9518  11164.24    -0.08   -2318.38     0.15
 18   2.1648   6810.40     0.06   -3552.20    -0.26
 19   2.1648   6810.40     0.07   -3552.20    -0.24
 20   2.1648   6810.40     0.11   -3552.20    -0.17
 21   2.8472  18534.34    -0.18   -3730.61    -0.21
 22   2.8473  18531.67    -0.20   -3729.65     0.08
 23   2.8499  18486.68     0.13   -3718.76    -0.02
 24   2.8501  18482.72     0.20   -3717.83    -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.

07RL314    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.559    40.571    40.548
ecceobj         0.035     0.035     0.035
incobj         21.020    21.020    21.020
qmin           38.280    38.334    38.267
qmax           42.803    42.812    42.818
amean          40.451    40.462    40.442
amin           40.149    40.163    40.144
amax           40.760    40.772    40.754
emean           0.038     0.038     0.039
emin            0.028     0.027     0.028
emax            0.051     0.050     0.051
imean          21.913    21.913    21.912
imin           21.400    21.391    21.408
imax           22.456    22.466    22.468
excite_mean     0.375     0.375     0.375
fracstop        1.000     1.000     1.000
cjmean          2.894     2.894     2.894

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       179.1     178.2     182.3
kozaiamp        180.0     180.0     179.9