Orbit Fit and Astrometric record for 13RR124

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: 13RR124   
# Created Tue Dec  7 02:11:54 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     36 observations of     36
# Arc:   5.00y
# First observation: 2013/09/13
#  Last observation: 2018/09/15
# Chi-squared of fit:    32.55 DOF:     66 RMS:  0.17
# Min/Max residuals:    -0.54    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.463381E-05  2.607928E-02 -3.457157E-06 -4.107055E-03  2.576787E-02  1.201346E-03
# Covariance matrix:
  1.0898E-13 -4.8915E-14 -1.0270E-14  3.4776E-15  3.0181E-14 -2.6668E-13
 -4.8915E-14  1.2479E-13 -6.7904E-15 -1.2564E-14  4.9634E-14  1.1295E-12
 -1.0270E-14 -6.7904E-15  9.8010E-14 -2.5243E-14 -3.4077E-14 -4.7913E-14
  3.4776E-15 -1.2564E-14 -2.5243E-14  1.5089E-14 -3.4396E-15 -1.2913E-13
  3.0181E-14  4.9634E-14 -3.4077E-14 -3.4396E-15  1.3005E-13  4.3103E-13
 -2.6668E-13  1.1295E-12 -4.7913E-14 -1.2913E-13  4.3103E-13  1.1525E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -45.618607   -1.606107    0.140147   -0.712523   -0.697449  2456548.849818
# Heliocentric elements and errors
Epoch:              2456548.5000  =  2013/09/13
Mean Anomaly:           33.61925 +/-     0.076
Argument of Peri:      222.72122 +/-     0.090
Long of Asc Node:      101.21627 +/-     0.000
Inclination:            45.34106 +/-     0.000
Eccentricity:         0.06430734 +/-    0.0001
Semi-Major Axis:     41.68677750 +/-    0.0024
Time of Perihelion: 2447367.6811 +/-      20.8
Perihelion:          39.00601190 +/-    0.0047
Aphelion:            44.36754311 +/-    0.0049
Period (y)              269.1570 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           28.12522758 +/-    0.0004
Ecliptic Y           -0.92578490 +/-    0.0000
Ecliptic Z          -27.73621189 +/-    0.0004
Ecliptic XDOT        -0.00015103 +/-    0.0000
Ecliptic YDOT         0.00277490 +/-    0.0000
Ecliptic ZDOT        -0.00039630 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.51178418 +/-    0.0004
Geocenter to KBO     38.80803450 +/-    0.0005
# Hcoef:  7.38

The following table shows the complete astrometric record for 13RR124. 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 (13RR124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  13.34904  01 23 24.376  -41 34 08.57  23.5g 13RR124   W84  C~4yQs      
2013 09  13.34904  01 23 24.38   -41 34 08.6   23.7g 13RR124   W84  C~3clA      
2013 09  13.35043  01 23 24.381  -41 34 09.01  23.1r 13RR124   W84  C~4yQs      
2013 09  13.35043  01 23 24.38   -41 34 09.0   23.4r 13RR124   W84  C~3clA      
2013 09  13.35179  01 23 24.355  -41 34 09.10  22.9i 13RR124   W84  C~4yQs      
2013 09  13.35179  01 23 24.36   -41 34 09.1   22.9i 13RR124   W84  C~3clA      
2013 10  03.34077  01 21 28.771  -41 47 16.12  24.7g 13RR124   W84  C~4yQs      
2013 11  09.18741  01 17 41.413  -41 51 09.53  23.8r 13RR124   W84  C~4yQs      
2013 11  09.18741  01 17 41.41   -41 51 09.5   23.9r 13RR124   W84  C~3clA      
2013 11  09.18879  01 17 41.400  -41 51 09.30  23.4i 13RR124   W84  C~4yQs      
2013 12  24.13758  01 15 00.403  -41 19 02.17  24.1g 13RR124   W84  C~4yQs      
2013 12  24.13758  01 15 00.40   -41 19 02.2   24.3g 13RR124   W84  C~3clA      
2014 01  14.07205  01 15 05.581  -40 54 32.64  22.5z 13RR124   W84  C~4yQs      
2014 01  21.06424  01 15 19.772  -40 45 45.01  23.5g 13RR124   W84  C~4yQs      
2014 01  21.06561  01 15 19.831  -40 45 44.55  23.1r 13RR124   W84  C~4yQs      
2014 08  22.34108  01 32 16.992  -40 36 35.26  23.6g 13RR124   W84  C~4yQs      
2014 08  22.34108  01 32 16.99   -40 36 35.2   23.8g 13RR124   W84  C~3clA      
2014 08  22.34246  01 32 17.006  -40 36 35.09  23.1i 13RR124   W84  C~4yQs      
2014 08  22.34246  01 32 17.01   -40 36 35.1   23.2i 13RR124   W84  C~3clA      
2016 01  11.09665  01 29 15.920  -39 50 18.89  23.9r 13RR124   W84  C~4yQs      
2016 10  03.31821  01 43 11.212  -39 54 50.56  22.8i 13RR124   W84  C~4yQs      
2016 10  03.31959  01 43 11.220  -39 54 50.62  23.5r 13RR124   W84  C~4yQs      
2016 10  03.31959  01 43 11.22   -39 54 50.6   23.4r 13RR124   W84  C~3clA      
2016 10  03.32095  01 43 11.185  -39 54 50.34  23.9g 13RR124   W84  C~4yQs      
2016 10  06.07660  01 42 54.728  -39 56 17.97  23.3i 13RR124   W84  C~4yQs      
2016 10  06.07797  01 42 54.724  -39 56 18.29  22.8z 13RR124   W84  C~4yQs      
2016 10  06.07936  01 42 54.723  -39 56 18.19  23.4r 13RR124   W84  C~4yQs      
2016 10  06.07936  01 42 54.72   -39 56 18.2   23.4r 13RR124   W84  C~3clA      
2016 11  07.27100  01 39 36.388  -40 02 10.30  24.2g 13RR124   W84  C~4yQs      
2017 11  20.23465  01 45 22.322  -39 19 08.90  23.2i 13RR124   W84  C~4yQs      
2017 11  20.23601  01 45 22.302  -39 19 08.89  23.5g 13RR124   W84  C~4yQs      
2017 12  15.16385  01 43 37.292  -39 03 09.89  23.0r 13RR124   W84  C~4yQs      
2017 12  15.16522  01 43 37.307  -39 03 09.88  22.5i 13RR124   W84  C~4yQs      
2017 12  15.16659  01 43 37.292  -39 03 09.78  24.3g 13RR124   W84  C~4yQs      
2018 09  15.36906  01 58 29.745  -38 18 26.23  23.6r 13RR124   W84  C~4yQs      
2018 09  15.37044  01 58 29.756  -38 18 26.44  24.3g 13RR124   W84  C~4yQt      

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     0.18       0.00     0.31
     2   0.0000      0.00     0.12       0.00     0.34
     3   0.0000      0.00     0.31       0.00    -0.03
     4   0.0000      0.00     0.29       0.00    -0.02
     5   0.0000      0.00     0.10       0.00    -0.05
     6   0.0000      0.00     0.03       0.00    -0.05
     7   0.0547      0.00     0.13       0.00     0.01
     8   0.1556      0.00    -0.05       0.00    -0.06
     9   0.1556      0.00    -0.01       0.00    -0.09
    10   0.1556      0.00    -0.09       0.00     0.11
    11   0.2787      0.00    -0.12       0.00    -0.10
    12   0.2787      0.00    -0.07       0.00    -0.07
    13   0.3360      0.00    -0.26       0.00    -0.16
    14   0.3551      0.00    -0.54       0.00    -0.16
    15   0.3551      0.00     0.30       0.00     0.20
    16   0.9391      0.00    -0.31       0.00    -0.11
    17   0.9391      0.00    -0.28       0.00    -0.17
    18   0.9391      0.00     0.06       0.00     0.07
    19   0.9391      0.00    -0.00       0.00     0.08
    20   2.3265      0.00     0.10       0.00     0.00
    21   3.0554      0.00    -0.20       0.00    -0.11
    22   3.0554      0.00     0.04       0.00    -0.11
    23   3.0554      0.00     0.04       0.00    -0.13
    24   3.0554      0.00    -0.36       0.00     0.20
    25   3.0629      0.00    -0.03       0.00     0.21
    26   3.0629      0.00     0.04       0.00    -0.07
    27   3.0629      0.00     0.11       0.00     0.06
    28   3.0629      0.00     0.15       0.00     0.07
    29   3.1511      0.00     0.16       0.00    -0.17
    30   4.1859      0.00    -0.00       0.00     0.11
    31   4.1859      0.00    -0.19       0.00     0.09
    32   4.2541      0.00     0.07       0.00    -0.01
    33   4.2541      0.00     0.35       0.00    -0.07
    34   4.2541      0.00     0.19       0.00    -0.05
    35   5.0048      0.00    -0.19       0.00     0.09
    36   5.0048      0.00     0.07       0.00    -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.

13RR124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        41.919    41.919    41.919
ecceobj         0.070     0.070     0.070
incobj         45.348    45.348    45.348
qmin           38.251    38.257    38.254
qmax           45.326    45.330    45.322
amean          41.717    41.717    41.717
amin           41.403    41.399    41.405
amax           42.052    42.049    42.054
emean           0.067     0.067     0.067
emin            0.056     0.056     0.056
emax            0.078     0.078     0.078
imean          43.727    43.727    43.727
imin           43.501    43.502    43.500
imax           43.964    43.965    43.962
excite_mean     0.694     0.694     0.694
fracstop        1.000     1.000     1.000
cjmean          2.419     2.419     2.419

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       192.0     191.9     192.0
kozaiamp        180.0     179.9     180.0