Orbit Fit and Astrometric record for 13RL124

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: 13RL124   
# Created Sat Dec  4 02:11:51 2021
# Orbit generated from Bernstein formalism
# Fitting     11 observations of     11
# Arc:   3.15y
# First observation: 2013/09/10
#  Last observation: 2016/11/04
Preliminary a, adot, b, bdot, g, gdot:
  -0.000430   0.040668  -0.000002  -0.006027   0.034352   0.000000
# Chi-squared of fit:     2.64 DOF:     16 RMS:  0.09
# Min/Max residuals:    -0.14    0.22
# Exact a, adot, b, bdot, g, gdot:
  1.788445E-05  4.047701E-02 -2.642098E-06 -5.997311E-03  3.496074E-02  2.771600E-04
# Covariance matrix:
  5.5464E-13 -2.2593E-13  3.7294E-16  1.4179E-14  4.2641E-13 -8.3595E-13
 -2.2593E-13  1.1867E-12  4.5809E-14 -1.9301E-13  2.7531E-13  1.0417E-11
  3.7294E-16  4.5809E-14  2.8594E-13 -1.1972E-13  2.0407E-14  4.3686E-13
  1.4179E-14 -1.9301E-13 -1.1972E-13  1.1608E-13 -5.8307E-14 -1.8259E-12
  4.2641E-13  2.7531E-13  2.0407E-14 -5.8307E-14  8.6804E-13  3.0226E-12
 -8.3595E-13  1.0417E-11  4.3686E-13 -1.8259E-12  3.0226E-12  9.8480E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.659869   20.520668    0.549243   -0.083227   -0.840824  2456545.869028
# Heliocentric elements and errors
Epoch:              2456540.5000  =  2013/09/05
Mean Anomaly:          329.25240 +/-     0.470
Argument of Peri:      245.27282 +/-     0.499
Long of Asc Node:      166.91037 +/-     0.001
Inclination:            10.14281 +/-     0.000
Eccentricity:         0.02662720 +/-    0.0001
Semi-Major Axis:     30.13416035 +/-    0.0033
Time of Perihelion: 2461701.0479 +/-      78.8
Perihelion:          29.33177206 +/-    0.0049
Aphelion:            30.93654865 +/-    0.0050
Period (y)              165.4234 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           27.64128019 +/-    0.0007
Ecliptic Y            9.76268803 +/-    0.0003
Ecliptic Z           -2.82105904 +/-    0.0001
Ecliptic XDOT        -0.00114050 +/-    0.0000
Ecliptic YDOT         0.00295888 +/-    0.0000
Ecliptic ZDOT        -0.00046937 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   29.45010734 +/-    0.0007
Geocenter to KBO     28.60351743 +/-    0.0008
# Hcoef:  8.75

The following table shows the complete astrometric record for 13RL124. 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 (13RL124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.36825  01 24 19.63   +02 46 01.2   23.8r 13RL124   W84  C~3clA      
2013 10  13.20007  01 21 11.85   +02 23 11.4   23.4i 13RL124   W84  C~3clA      
2013 11  04.05578  01 18 58.96   +02 09 24.8   23.7r 13RL124   W84  C~3clA      
2013 11  04.11918  01 18 58.59   +02 09 22.7         13RL124   W84  C~3clA      
2013 11  04.19217  01 18 58.16   +02 09 20.3         13RL124   W84  C~3clA      
2014 10  02.28833  01 31 31.09   +03 03 49.2   23.8g 13RL124   W84  C~3clA      
2015 09  04.32888  01 43 03.24   +03 54 52.8   22.7z 13RL124   W84  C~3clA      
2015 10  17.17658  01 39 12.34   +03 26 16.0   23.2r 13RL124   W84  C~3clA      
2016 08  16.38146  01 52 58.51   +04 35 48.7   22.9i 13RL124   W84  C~3clA      
2016 10  28.24528  01 47 09.90   +03 50 54.2   23.7g 13RL124   W84  C~3clA      
2016 11  04.20996  01 46 26.72   +03 46 48.1   23.3i 13RL124   W84  C~3clA      

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     0.09       0.00    -0.01
     2   0.0899  -3122.01     0.18    -220.51     0.07
     3   0.1497  -5279.31    -0.07    -242.87    -0.01
     4   0.1499  -5285.24    -0.06    -242.74    -0.01
     5   0.1501  -5292.12    -0.10    -242.56     0.04
     6   1.0593   6398.72     0.05   -1415.23    -0.08
     7   1.9821  17198.02    -0.03   -2408.99    -0.07
     8   2.0994  13330.70    -0.14   -2727.83     0.02
     9   2.9323  26488.44    -0.08   -3405.73    -0.04
    10   3.1318  20572.09    -0.04   -3999.01     0.00
    11   3.1508  19873.83     0.22   -3989.51     0.09

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.

13RL124    quality flag:3

Type:            1:1       1:1       1:1

axisobj        30.251    30.262    30.240
ecceobj         0.029     0.029     0.028
incobj         10.118    10.118    10.118
qmin           28.552    28.589    28.597
qmax           31.795    31.911    31.800
amean          30.110    30.110    30.110
amin           29.813    29.828    29.826
amax           30.423    30.438    30.420
emean           0.026     0.026     0.026
emin            0.003     0.003     0.003
emax            0.049     0.050     0.049
imean           9.334     9.334     9.334
imin            9.165     9.163     9.149
imax            9.550     9.535     9.555
excite_mean     0.164     0.164     0.164
fracstop        1.000     1.000     1.000
cjmean          2.976     2.976     2.976

libcent 0        62.4      62.1      62.6
libamp  0        18.8      18.6      19.6
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       182.1     181.9     181.2
kozaiamp        180.0     180.0     179.9