Orbit Fit and Astrometric record for 13RM124

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: 13RM124   
# Created Mon Dec  6 02:11:47 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     34 observations of     34
# Arc:   7.13y
# First observation: 2013/09/02
#  Last observation: 2020/10/20
# Chi-squared of fit:     5.99 DOF:     62 RMS:  0.07
# Min/Max residuals:    -0.16    0.19
# Exact a, adot, b, bdot, g, gdot:
  2.030682E-05  3.722047E-02 -5.653122E-06 -9.003559E-03  2.886793E-02 -2.934343E-03
# Covariance matrix:
  1.8860E-13 -1.9110E-14 -1.1578E-15  3.0752E-15  1.9490E-13 -5.4294E-14
 -1.9110E-14  6.6366E-14  8.3277E-15 -1.4855E-14  5.8863E-14  2.5654E-13
 -1.1578E-15  8.3277E-15  7.9354E-14 -1.9082E-14  6.8931E-15  3.6985E-14
  3.0752E-15 -1.4855E-14 -1.9082E-14  1.1903E-14 -1.0492E-14 -6.6383E-14
  1.9490E-13  5.8863E-14  6.8931E-15 -1.0492E-14  4.1140E-13  1.7908E-13
 -5.4294E-14  2.5654E-13  3.6985E-14 -6.6383E-14  1.7908E-13  1.1469E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.837693   -3.522913    0.292999    0.047939   -0.965474  2456537.742388
# Heliocentric elements and errors
Epoch:              2456538.5000  =  2013/09/03
Mean Anomaly:          357.35232 +/-     0.001
Argument of Peri:      181.53403 +/-     0.004
Long of Asc Node:      187.27701 +/-     0.000
Inclination:            13.86193 +/-     0.000
Eccentricity:         0.59950831 +/-    0.0001
Semi-Major Axis:     88.03659200 +/-    0.0238
Time of Perihelion: 2458757.4962 +/-     121.3
Perihelion:          35.25792310 +/-    0.0129
Aphelion:           140.81526091 +/-    0.0390
Period (y)              826.0437 +/-      0.33
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.47929984 +/-    0.0008
Ecliptic Y           -2.47463342 +/-    0.0001
Ecliptic Z            1.71474037 +/-    0.0000
Ecliptic XDOT        -0.00002451 +/-    0.0000
Ecliptic YDOT         0.00353673 +/-    0.0000
Ecliptic ZDOT        -0.00086649 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   35.60687138 +/-    0.0008
Geocenter to KBO     34.64060349 +/-    0.0008
# Hcoef:  7.77

The following table shows the complete astrometric record for 13RM124. 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 (13RM124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  02.24161  23 42 33.675  +01 12 13.76  23.4g 13RM124   W84  C~4yQs      
2013 09  08.16575  23 42 06.027  +01 08 48.68  23.6g 13RM124   W84  C~4yQs      
2013 09  11.25591  23 41 51.289  +01 06 58.49  24.0g 13RM124   W84  C~4yQs      
2013 09  11.25591  23 41 51.29   +01 06 58.5   23.9g 13RM124   W84  C~3clA      
2013 09  29.19287  23 40 25.339  +00 55 58.34  23.1r 13RM124   W84  C~4yQs      
2013 09  29.19287  23 40 25.34   +00 55 58.3   23.2r 13RM124   W84  C~3clA      
2013 09  29.19427  23 40 25.328  +00 55 58.25  22.8i 13RM124   W84  C~4yQs      
2013 09  29.19427  23 40 25.33   +00 55 58.2   22.8i 13RM124   W84  C~3clA      
2013 09  30.12657  23 40 20.966  +00 55 23.71  23.4r 13RM124   W84  C~4yQs      
2013 09  30.12657  23 40 20.97   +00 55 23.7   23.4r 13RM124   W84  C~3clA      
2013 09  30.13709  23 40 20.918  +00 55 23.29  22.6i 13RM124   W84  C~4yQs      
2013 09  30.13709  23 40 20.92   +00 55 23.3   22.8i 13RM124   W84  C~3clA      
2013 10  13.07263  23 39 23.046  +00 47 34.56  22.8i 13RM124   W84  C~4yQs      
2013 10  13.07263  23 39 23.05   +00 47 34.5   22.9i 13RM124   W84  C~3clA      
2013 11  08.12202  23 37 54.480  +00 34 12.56  23.5r 13RM124   W84  C~4yQs      
2013 11  08.12202  23 37 54.48   +00 34 12.5   23.5r 13RM124   W84  C~3clA      
2015 11  06.07076  23 55 14.448  +01 19 36.36  23.8r 13RM124   W84  C~4yQs      
2015 11  07.04933  23 55 11.519  +01 19 09.76  22.6i 13RM124   W84  C~4yQs      
2015 11  07.04933  23 55 11.52   +01 19 09.8   22.8i 13RM124   W84  C~3clA      
2015 11  07.05070  23 55 11.521  +01 19 09.62  23.0r 13RM124   W84  C~4yQs      
2015 11  07.05070  23 55 11.52   +01 19 09.6   23.3r 13RM124   W84  C~3clA      
2015 11  07.05207  23 55 11.522  +01 19 09.54  23.7g 13RM124   W84  C~4yQs      
2015 11  07.05207  23 55 11.52   +01 19 09.5   23.9g 13RM124   W84  C~3clA      
2016 09  22.12447  00 07 07.110  +02 07 15.40  23.4r 13RM124   W84  C~4yQs      
2016 09  22.12447  00 07 07.11   +02 07 15.4   23.2r 13RM124   W84  C~3clA      
2016 09  22.12586  00 07 07.113  +02 07 15.35  23.6g 13RM124   W84  C~4yQs      
2017 08  18.29676  00 18 25.306  +02 48 44.25  23.9g 13RM124   W84  C~4yQs      
2017 10  11.20422  00 14 23.712  +02 17 46.77  22.9z 13RM124   W84  C~4yQs      
2017 10  22.18020  00 13 34.353  +02 11 18.76  22.8r 13RM124   W84  C~4yQs      
2018 10  18.19329  00 22 40.813  +02 35 46.97  22.5i 13RM124   W84  C~4yQs      
2018 11  07.12913  00 21 19.630  +02 25 06.08  23.6r 13RM124   W84  C~4yQs      
2020 10  20.111680 00 40 09.160  +03 17 52.93  23.1G 13RM124   G37  C~4Kvu      
2020 10  20.160210 00 40 08.929  +03 17 51.15        13RM124   G37  C~4Kvu      
2020 10  20.224000 00 40 08.630  +03 17 48.97        13RM124   G37  C~4Kvu      

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    -0.04       0.00     0.14
     2   0.0162      0.00     0.12       0.00     0.06
     3   0.0247      0.00    -0.12       0.00    -0.07
     4   0.0247      0.00    -0.10       0.00    -0.06
     5   0.0738      0.00     0.02       0.00     0.05
     6   0.0738      0.00     0.03       0.00     0.01
     7   0.0738      0.00    -0.05       0.00     0.01
     8   0.0738      0.00    -0.02       0.00    -0.04
     9   0.0763      0.00     0.10       0.00    -0.01
    10   0.0763      0.00     0.04       0.00     0.00
    11   0.0764      0.00     0.10       0.00    -0.02
    12   0.0764      0.00     0.07       0.00    -0.03
    13   0.1118      0.00    -0.05       0.00    -0.11
    14   0.1118      0.00    -0.11       0.00    -0.05
    15   0.1831      0.00    -0.01       0.00     0.04
    16   0.1831      0.00    -0.01       0.00    -0.02
    17   2.1761      0.00     0.04       0.00    -0.08
    18   2.1788      0.00    -0.04       0.00     0.16
    19   2.1788      0.00    -0.05       0.00     0.12
    20   2.1788      0.00     0.02       0.00    -0.00
    21   2.1788      0.00     0.04       0.00     0.02
    22   2.1788      0.00     0.09       0.00    -0.06
    23   2.1788      0.00     0.12       0.00    -0.02
    24   3.0551      0.00    -0.10       0.00     0.05
    25   3.0551      0.00    -0.10       0.00     0.05
    26   3.0551      0.00     0.05       0.00     0.05
    27   3.9591      0.00     0.01       0.00     0.04
    28   4.1067      0.00     0.19       0.00     0.11
    29   4.1367      0.00     0.00       0.00    -0.16
    30   5.1251      0.00    -0.05       0.00    -0.10
    31   5.1797      0.00    -0.14       0.00    -0.08
    32   7.1317      0.00     0.02       0.00     0.06
    33   7.1319      0.00    -0.01       0.00    -0.03
    34   7.1321      0.00     0.03       0.00     0.01

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.

13RM124    quality flag:3

Type:        5:1EEEE   5:1EEEE   5:1EEEE

axisobj        89.257    89.256    89.258
ecceobj         0.605     0.605     0.605
incobj         13.834    13.834    13.834
qmin           34.366    34.433    34.406
qmax          146.307   145.926   146.247
amean          88.041    88.042    88.042
amin           86.257    86.269    86.122
amax           90.768    90.581    90.773
emean           0.600     0.599     0.599
emin            0.588     0.589     0.588
emax            0.612     0.611     0.612
imean          13.495    13.597    13.626
imin           13.210    13.421    13.321
imax           13.832    13.842    13.960
excite_mean     0.643     0.644     0.644
fracstop        1.000     1.000     1.000
cjmean          3.003     3.003     3.003

libcent 0       179.8     179.7     179.0
libamp  0       169.2     165.4     169.9
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       234.8     258.9     230.2
kozaiamp        180.0     180.0     180.0