Orbit Fit and Astrometric record for 13RN124

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: 13RN124   
# Created Sat Dec  4 02:11:51 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     37 observations of     37
# Arc:   7.03y
# First observation: 2013/09/11
#  Last observation: 2020/09/21
# Chi-squared of fit:    10.70 DOF:     68 RMS:  0.10
# Min/Max residuals:    -0.30    0.20
# Exact a, adot, b, bdot, g, gdot:
  1.438200E-05  2.099252E-02 -3.459381E-06 -5.602139E-03  2.306226E-02  3.470683E-03
# Covariance matrix:
  3.0300E-13 -3.8530E-14  3.2472E-15 -5.1955E-16  3.1150E-13  1.8898E-15
 -3.8530E-14  5.4438E-14  9.9874E-15 -1.3309E-14  3.9902E-14  4.0052E-13
  3.2472E-15  9.9874E-15  1.0541E-13 -2.6973E-14  1.9555E-14  9.2643E-14
 -5.1955E-16 -1.3309E-14 -2.6973E-14  1.3156E-14 -1.9733E-14 -1.2089E-13
  3.1150E-13  3.9902E-14  1.9555E-14 -1.9733E-14  5.7408E-13  5.7101E-13
  1.8898E-15  4.0052E-13  9.2643E-14 -1.2089E-13  5.7101E-13  3.6289E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.875901   -5.928406    0.100110    0.050396   -1.001251  2456546.769278
# Heliocentric elements and errors
Epoch:              2456546.5000  =  2013/09/11
Mean Anomaly:           73.53050 +/-     0.025
Argument of Peri:       77.92421 +/-     0.035
Long of Asc Node:      184.37272 +/-     0.000
Inclination:            15.17817 +/-     0.000
Eccentricity:         0.15515576 +/-    0.0001
Semi-Major Axis:     45.29832911 +/-    0.0057
Time of Perihelion: 2433801.4593 +/-       9.0
Perihelion:          38.27003226 +/-    0.0062
Aphelion:            52.32662595 +/-    0.0076
Period (y)              304.8818 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.06124940 +/-    0.0014
Ecliptic Y           -4.67294951 +/-    0.0002
Ecliptic Z            2.17537045 +/-    0.0001
Ecliptic XDOT         0.00069372 +/-    0.0000
Ecliptic YDOT         0.00243169 +/-    0.0000
Ecliptic ZDOT        -0.00064341 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   44.36162196 +/-    0.0014
Geocenter to KBO     43.36081557 +/-    0.0014
# Hcoef:  6.68

The following table shows the complete astrometric record for 13RN124. 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 (13RN124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  11.26850  23 33 40.633  +00 17 11.28  23.6g 13RN124   W84  C~4yQs      
2013 09  11.26850  23 33 40.63   +00 17 11.3   23.6g 13RN124   W84  C~3clA      
2013 10  11.11518  23 31 40.310  +00 02 08.59  22.7z 13RN124   W84  C~4yQs      
2013 10  11.11518  23 31 40.31   +00 02 08.6   22.9z 13RN124   W84  C~3clA      
2013 10  12.10342  23 31 36.694  +00 01 39.88  23.0i 13RN124   W84  C~4yQs      
2013 10  12.10342  23 31 36.69   +00 01 39.9   23.0i 13RN124   W84  C~3clA      
2013 10  12.10480  23 31 36.687  +00 01 39.79  22.7z 13RN124   W84  C~4yQs      
2013 10  28.02651  23 30 44.704  -00 05 29.05  22.4r 13RN124   W84  C~4yQs      
2013 10  28.02651  23 30 44.71   -00 05 29.1   22.7r 13RN124   W84  C~3clA      
2013 11  23.07976  23 29 54.169  -00 13 55.31  23.0r 13RN124   W84  C~4yQs      
2013 11  23.07976  23 29 54.16   -00 13 55.3   23.4r 13RN124   W84  C~3clA      
2014 10  28.15544  23 35 38.014  +00 05 22.15  23.1r 13RN124   W84  C~4yQs      
2014 10  28.15544  23 35 38.01   +00 05 22.1   23.2r 13RN124   W84  C~3clA      
2015 11  08.04459  23 40 00.605  +00 11 59.41  23.2r 13RN124   W84  C~4yQs      
2015 11  08.04459  23 40 00.60   +00 11 59.4   23.2r 13RN124   W84  C~3clA      
2015 11  08.04598  23 40 00.597  +00 11 59.47  23.7g 13RN124   W84  C~4yQs      
2015 11  08.04598  23 40 00.60   +00 11 59.5   23.7g 13RN124   W84  C~3clA      
2016 10  05.12787  23 46 38.090  +00 37 07.27  22.8i 13RN124   W84  C~4yQs      
2016 10  05.12924  23 46 38.077  +00 37 07.09  23.3r 13RN124   W84  C~4yQs      
2016 10  05.12924  23 46 38.08   +00 37 07.1   23.3r 13RN124   W84  C~3clA      
2016 10  05.13060  23 46 38.072  +00 37 06.88  23.5g 13RN124   W84  C~4yQs      
2016 10  05.13060  23 46 38.06   +00 37 07.0   23.9g 13RN124   W84  C~3clA      
2016 10  06.05178  23 46 34.454  +00 36 39.85  23.0z 13RN124   W84  C~4yQs      
2016 10  07.08110  23 46 30.412  +00 36 09.24  23.8g 13RN124   W84  C~4yQs      
2017 09  18.22364  23 52 36.309  +00 56 17.06  22.8i 13RN124   W84  C~4yQs      
2017 09  27.15249  23 51 59.468  +00 51 46.78  23.3r 13RN124   W84  C~4yQs      
2017 09  27.15388  23 51 59.464  +00 51 46.66  22.5z 13RN124   W84  C~4yQs      
2017 09  27.15527  23 51 59.473  +00 51 46.49  22.9i 13RN124   W84  C~4yQs      
2017 10  11.19736  23 51 03.519  +00 44 47.43  23.1z 13RN124   W84  C~4yQs      
2017 11  17.02350  23 49 14.754  +00 30 02.22  23.1r 13RN124   W84  C~4yQs      
2017 11  17.02897  23 49 14.740  +00 30 02.10  23.1i 13RN124   W84  C~4yQs      
2017 11  18.02928  23 49 12.953  +00 29 45.28  24.1g 13RN124   W84  C~4yQs      
2018 09  17.28275  23 57 27.651  +01 07 18.51  22.8i 13RN124   W84  C~4yQs      
2018 09  17.28411  23 57 27.655  +01 07 18.13  23.3g 13RN124   W84  C~4yQs      
2020 09  21.167620 00 06 38.049  +01 25 47.91  23.3G 13RN124   G37  C~49w5      
2020 09  21.209850 00 06 37.886  +01 25 46.58        13RN124   G37  C~49w5      
2020 09  21.271880 00 06 37.623  +01 25 44.88        13RN124   G37  C~49w5      

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     0.03       0.00    -0.07
     2   0.0000      0.00    -0.01       0.00    -0.05
     3   0.0817      0.00     0.11       0.00     0.05
     4   0.0817      0.00     0.11       0.00     0.06
     5   0.0844      0.00     0.02       0.00    -0.03
     6   0.0844      0.00     0.08       0.00    -0.05
     7   0.0844      0.00     0.05       0.00    -0.10
     8   0.1280      0.00    -0.13       0.00    -0.01
     9   0.1280      0.00    -0.04       0.00    -0.06
    10   0.1993      0.00    -0.12       0.00     0.08
    11   0.1993      0.00     0.02       0.00     0.07
    12   1.1277      0.00    -0.09       0.00    -0.05
    13   1.1277      0.00    -0.03       0.00    -0.00
    14   2.1568      0.00    -0.07       0.00     0.06
    15   2.1568      0.00     0.01       0.00     0.07
    16   2.1568      0.00    -0.02       0.00     0.19
    17   2.1568      0.00    -0.06       0.00     0.16
    18   3.0660      0.00     0.14       0.00     0.08
    19   3.0660      0.00     0.07       0.00    -0.05
    20   3.0660      0.00     0.02       0.00    -0.06
    21   3.0660      0.00    -0.15       0.00    -0.11
    22   3.0660      0.00     0.03       0.00    -0.23
    23   3.0685      0.00     0.15       0.00     0.20
    24   3.0714      0.00     0.02       0.00     0.16
    25   4.0190      0.00    -0.00       0.00    -0.06
    26   4.0435      0.00    -0.11       0.00     0.15
    27   4.0435      0.00    -0.08       0.00     0.07
    28   4.0435      0.00     0.14       0.00    -0.06
    29   4.0819      0.00    -0.02       0.00    -0.02
    30   4.1828      0.00     0.09       0.00    -0.08
    31   4.1828      0.00     0.04       0.00    -0.11
    32   4.1855      0.00     0.01       0.00     0.01
    33   5.0158      0.00    -0.10       0.00     0.04
    34   5.0158      0.00     0.05       0.00    -0.30
    35   7.0278      0.00    -0.10       0.00     0.04
    36   7.0279      0.00     0.08       0.00    -0.03
    37   7.0281      0.00     0.00       0.00     0.12

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.

13RN124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.544    45.544    45.544
ecceobj         0.157     0.157     0.156
incobj         15.136    15.136    15.136
qmin           37.779    37.776    37.777
qmax           53.358    53.360    53.375
amean          45.405    45.405    45.405
amin           45.029    45.032    45.033
amax           45.844    45.824    45.841
emean           0.151     0.151     0.151
emin            0.138     0.140     0.138
emax            0.166     0.166     0.166
imean          15.306    15.306    15.306
imin           14.796    14.796    14.796
imax           15.810    15.815    15.810
excite_mean     0.304     0.304     0.304
fracstop        1.000     1.000     1.000
cjmean          3.004     3.004     3.004

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       177.6     177.7     177.4
kozaiamp        180.0     180.0     179.9