Orbit Fit and Astrometric record for 13RV124

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: 13RV124   
# Created Tue Dec  7 02:11:54 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     41 observations of     41
# Arc:   5.16y
# First observation: 2013/09/09
#  Last observation: 2018/11/08
# Chi-squared of fit:     6.32 DOF:     76 RMS:  0.07
# Min/Max residuals:    -0.24    0.24
# Exact a, adot, b, bdot, g, gdot:
  1.485529E-05  2.117402E-02  1.880049E-06  2.973235E-03  2.279152E-02  2.136723E-03
# Covariance matrix:
  1.6010E-13 -8.2957E-14 -5.4677E-14 -2.6459E-15  8.5828E-14 -6.7475E-13
 -8.2957E-14  1.6297E-13 -3.0325E-14  3.7727E-14  3.1823E-14  1.8170E-12
 -5.4677E-14 -3.0325E-14  1.8738E-13 -4.9351E-14 -1.4114E-13 -3.8834E-13
 -2.6459E-15  3.7727E-14 -4.9351E-14  2.4624E-14  3.1789E-14  4.5902E-13
  8.5828E-14  3.1823E-14 -1.4114E-13  3.1789E-14  2.0601E-13  4.1723E-13
 -6.7475E-13  1.8170E-12 -3.8834E-13  4.5902E-13  4.1723E-13  2.1921E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -43.495258  -26.627152   -0.225872   -0.676195   -0.712800  2456544.661098
# Heliocentric elements and errors
Epoch:              2456544.5000  =  2013/09/09
Mean Anomaly:           83.66291 +/-     0.048
Argument of Peri:      182.98302 +/-     0.040
Long of Asc Node:       51.87535 +/-     0.000
Inclination:            43.24715 +/-     0.000
Eccentricity:         0.10528778 +/-    0.0002
Semi-Major Axis:     44.61836301 +/-    0.0045
Time of Perihelion: 2431245.7332 +/-      15.0
Perihelion:          39.92059462 +/-    0.0104
Aphelion:            49.31613140 +/-    0.0108
Period (y)              298.0428 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           29.43287700 +/-    0.0006
Ecliptic Y          -14.50060940 +/-    0.0003
Ecliptic Z          -30.19953762 +/-    0.0006
Ecliptic XDOT         0.00152001 +/-    0.0000
Ecliptic YDOT         0.00207900 +/-    0.0000
Ecliptic ZDOT         0.00008257 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.59336140 +/-    0.0006
Geocenter to KBO     43.87594730 +/-    0.0009
# Hcoef:  5.80

The following table shows the complete astrometric record for 13RV124. 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 (13RV124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  09.16032  23 51 20.542  -49 32 13.34  23.4g 13RV124   W84  C~4yQt      
2013 09  09.16032  23 51 20.54   -49 32 13.3   23.4g 13RV124   W84  C~3clA      
2013 10  04.12796  23 48 36.063  -49 36 41.03  23.0g 13RV124   W84  C~4yQt      
2013 10  04.12796  23 48 36.07   -49 36 41.0   23.1g 13RV124   W84  C~3clA      
2013 12  12.09306  23 44 23.579  -48 53 33.65  21.4z 13RV124   W84  C~4yQt      
2013 12  12.09306  23 44 23.58   -48 53 33.6   21.9z 13RV124   W84  C~3clA      
2013 12  23.07658  23 44 33.810  -48 41 25.18  22.2r 13RV124   W84  C~4yQt      
2013 12  23.07658  23 44 33.81   -48 41 25.2   22.3r 13RV124   W84  C~3clA      
2013 12  23.07795  23 44 33.814  -48 41 25.16  22.1i 13RV124   W84  C~4yQt      
2013 12  23.07795  23 44 33.82   -48 41 25.2   22.1i 13RV124   W84  C~3clA      
2013 12  24.07718  23 44 35.505  -48 40 17.03  23.0g 13RV124   W84  C~4yQt      
2013 12  24.07718  23 44 35.51   -48 40 17.0   23.0g 13RV124   W84  C~3clA      
2013 12  24.07857  23 44 35.513  -48 40 16.96  22.3r 13RV124   W84  C~4yQt      
2013 12  24.07857  23 44 35.51   -48 40 17.0   22.3r 13RV124   W84  C~3clA      
2014 01  01.05688  23 44 53.579  -48 31 06.25  22.0i 13RV124   W84  C~4yQt      
2014 01  01.05688  23 44 53.58   -48 31 06.3   22.1i 13RV124   W84  C~3clA      
2014 11  04.07594  23 51 22.163  -48 39 26.05  21.1Y 13RV124   W84  C~4yQt      
2014 11  14.17030  23 50 42.662  -48 32 51.15  22.0i 13RV124   W84  C~4yQt      
2014 11  14.17030  23 50 42.66   -48 32 51.1   22.1i 13RV124   W84  C~3clA      
2014 11  17.03615  23 50 33.410  -48 30 41.93  21.8Y 13RV124   W84  C~4yQt      
2016 09  08.24127  00 07 30.473  -47 03 34.74  22.1i 13RV124   W84  C~4yQt      
2016 09  08.24127  00 07 30.47   -47 03 34.7   22.1i 13RV124   W84  C~3clA      
2016 09  08.24266  00 07 30.460  -47 03 34.78  22.4r 13RV124   W84  C~4yQt      
2016 09  08.24266  00 07 30.46   -47 03 34.8   22.5r 13RV124   W84  C~3clA      
2016 09  08.24403  00 07 30.454  -47 03 34.79  23.2g 13RV124   W84  C~4yQt      
2016 09  08.24403  00 07 30.45   -47 03 34.8   23.3g 13RV124   W84  C~3clA      
2016 10  06.01220  00 04 36.113  -47 10 12.07  22.1i 13RV124   W84  C~4yQt      
2016 10  06.01220  00 04 36.11   -47 10 12.1   22.2i 13RV124   W84  C~3clA      
2016 10  06.03150  00 04 35.986  -47 10 12.22  22.0z 13RV124   W84  C~4yQt      
2016 10  06.03150  00 04 35.99   -47 10 12.2   21.9z 13RV124   W84  C~3clA      
2016 11  07.06143  00 01 43.493  -47 00 45.47  22.2i 13RV124   W84  C~4yQt      
2016 11  07.06280  00 01 43.494  -47 00 45.44  21.8z 13RV124   W84  C~4yQt      
2017 09  08.25539  00 12 30.991  -46 12 35.54  22.1Y 13RV124   W84  C~4yQt      
2017 09  28.18702  00 10 28.127  -46 19 11.16  22.0i 13RV124   W84  C~4yQt      
2017 09  28.18839  00 10 28.119  -46 19 11.28  22.0z 13RV124   W84  C~4yQt      
2017 10  17.18389  00 08 32.890  -46 19 05.58  22.3r 13RV124   W84  C~4yQt      
2017 10  28.13064  00 07 33.315  -46 16 03.78  22.1z 13RV124   W84  C~4yQt      
2017 11  18.03941  00 06 04.608  -46 04 32.16  22.4r 13RV124   W84  C~4yQt      
2018 11  08.21109  00 11 34.573  -45 20 55.73  22.1i 13RV124   W84  C~4yQt      
2018 11  08.21245  00 11 34.568  -45 20 55.65  22.3r 13RV124   W84  C~4yQt      
2018 11  08.21385  00 11 34.559  -45 20 55.69  22.9g 13RV124   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    -0.08       0.00     0.01
     2   0.0000      0.00    -0.05       0.00    -0.03
     3   0.0684      0.00     0.23       0.00     0.07
     4   0.0684      0.00     0.13       0.00     0.04
     5   0.2572      0.00    -0.00       0.00    -0.08
     6   0.2572      0.00    -0.02       0.00    -0.13
     7   0.2872      0.00    -0.02       0.00     0.06
     8   0.2872      0.00    -0.02       0.00     0.04
     9   0.2872      0.00     0.09       0.00    -0.05
    10   0.2872      0.00     0.00       0.00    -0.01
    11   0.2900      0.00    -0.02       0.00     0.04
    12   0.2900      0.00    -0.09       0.00     0.01
    13   0.2900      0.00    -0.05       0.00    -0.05
    14   0.2900      0.00    -0.01       0.00    -0.01
    15   0.3118      0.00     0.05       0.00     0.03
    16   0.3118      0.00     0.07       0.00    -0.02
    17   1.1524      0.00    -0.24       0.00     0.03
    18   1.1800      0.00    -0.05       0.00     0.04
    19   1.1800      0.00    -0.02       0.00    -0.01
    20   1.1879      0.00     0.17       0.00     0.08
    21   2.9982      0.00     0.00       0.00     0.05
    22   2.9982      0.00     0.05       0.00     0.01
    23   2.9982      0.00    -0.02       0.00    -0.01
    24   2.9982      0.00    -0.02       0.00     0.01
    25   2.9982      0.00    -0.04       0.00     0.03
    26   2.9982      0.00     0.02       0.00     0.04
    27   3.0742      0.00    -0.03       0.00     0.04
    28   3.0742      0.00     0.01       0.00     0.07
    29   3.0743      0.00    -0.02       0.00    -0.05
    30   3.0743      0.00    -0.08       0.00    -0.07
    31   3.1619      0.00     0.00       0.00     0.00
    32   3.1620      0.00     0.11       0.00    -0.02
    33   3.9975      0.00     0.24       0.00     0.13
    34   4.0521      0.00    -0.01       0.00     0.05
    35   4.0521      0.00     0.00       0.00    -0.06
    36   4.1041      0.00    -0.02       0.00    -0.01
    37   4.1341      0.00     0.03       0.00    -0.03
    38   4.1913      0.00    -0.00       0.00    -0.06
    39   5.1637      0.00     0.01       0.00    -0.03
    40   5.1637      0.00     0.02       0.00     0.00
    41   5.1637      0.00    -0.02       0.00    -0.08

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.

13RV124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        44.819    44.819    44.819
ecceobj         0.105     0.105     0.105
incobj         43.270    43.270    43.270
qmin           39.053    39.064    39.064
qmax           50.790    50.774    50.792
amean          44.782    44.782    44.782
amin           44.427    44.426    44.428
amax           45.160    45.157    45.171
emean           0.112     0.112     0.112
emin            0.100     0.101     0.101
emax            0.125     0.125     0.125
imean          42.288    42.288    42.288
imin           42.069    42.082    42.083
imax           42.523    42.517    42.521
excite_mean     0.682     0.682     0.682
fracstop        1.000     1.000     1.000
cjmean          2.465     2.465     2.465

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       179.0     178.5     178.7
kozaiamp        180.0     179.9     180.0