Orbit Fit and Astrometric record for 13RH124

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: 13RH124   
# Created Sat Nov 27 02:11:53 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     32 observations of     32
# Arc:   5.03y
# First observation: 2013/09/09
#  Last observation: 2018/09/21
# Chi-squared of fit:     7.57 DOF:     58 RMS:  0.09
# Min/Max residuals:    -0.26    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.225129E-05  1.534262E-02 -8.180652E-06 -1.025447E-02  2.122225E-02 -3.290607E-04
# Covariance matrix:
  1.6073E-13 -1.4585E-14  4.2275E-15 -1.2387E-14  1.0892E-13  2.8306E-13
 -1.4585E-14  1.2428E-13  3.4848E-14 -8.5858E-14  1.2678E-13  2.0292E-12
  4.2275E-15  3.4848E-14  1.1441E-13 -6.1109E-14  3.9082E-14  6.7215E-13
 -1.2387E-14 -8.5858E-14 -6.1109E-14  8.8704E-14 -9.9427E-14 -1.6537E-12
  1.0892E-13  1.2678E-13  3.9082E-14 -9.9427E-14  2.9104E-13  2.3344E-12
  2.8306E-13  2.0292E-12  6.7215E-13 -1.6537E-12  2.3344E-12  3.9094E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -12.465217   18.200854    0.529606   -0.185042   -0.837540  2456544.852658
# Heliocentric elements and errors
Epoch:              2456544.5000  =  2013/09/09
Mean Anomaly:          203.34859 +/-     0.197
Argument of Peri:        1.45237 +/-     0.196
Long of Asc Node:      180.04955 +/-     0.000
Inclination:            35.80480 +/-     0.000
Eccentricity:         0.08591707 +/-    0.0001
Semi-Major Axis:     44.41237865 +/-    0.0033
Time of Perihelion: 2503586.5539 +/-      59.6
Perihelion:          40.59659719 +/-    0.0060
Aphelion:            48.22816012 +/-    0.0063
Period (y)              295.9813 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           44.68731954 +/-    0.0011
Ecliptic Y           14.13885581 +/-    0.0004
Ecliptic Z          -10.17118255 +/-    0.0003
Ecliptic XDOT        -0.00093506 +/-    0.0000
Ecliptic YDOT         0.00177701 +/-    0.0000
Ecliptic ZDOT        -0.00128243 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.96163767 +/-    0.0010
Geocenter to KBO     47.12040130 +/-    0.0012
# Hcoef:  6.41

The following table shows the complete astrometric record for 13RH124. 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 (13RH124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  09.35188  01 26 03.813  -04 24 00.02  24.0g 13RH124   W84  C~4yQs      
2013 09  10.34206  01 26 00.745  -04 24 33.82  23.6g 13RH124   W84  C~4yQs      
2013 09  10.34206  01 26 00.75   -04 24 33.8   23.8g 13RH124   W84  C~3clA      
2013 09  12.38865  01 25 54.228  -04 25 43.68  23.6g 13RH124   W84  C~4yQs      
2013 10  02.28369  01 24 42.681  -04 36 53.62  23.9g 13RH124   W84  C~4yQs      
2013 10  02.28508  01 24 42.668  -04 36 53.79  23.0r 13RH124   W84  C~4yQs      
2013 10  02.28508  01 24 42.67   -04 36 53.8   23.1r 13RH124   W84  C~3clA      
2013 10  04.19728  01 24 35.209  -04 37 55.58  23.7g 13RH124   W84  C~4yQs      
2013 11  03.05351  01 22 37.09   -04 51 47.0   23.4r 13RH124   W84  C~3clA      
2013 11  03.11582  01 22 36.85   -04 51 48.4         13RH124   W84  C~3clA      
2013 11  03.20125  01 22 36.53   -04 51 50.4         13RH124   W84  C~3clA      
2014 10  30.21535  01 27 02.702  -05 02 56.94  23.7g 13RH124   W84  C~4yQs      
2014 10  30.21671  01 27 02.711  -05 02 57.11  22.8r 13RH124   W84  C~4yQs      
2014 10  30.21671  01 27 02.71   -05 02 57.2   23.4r 13RH124   W84  C~3clA      
2014 12  12.05876  01 24 50.904  -05 12 23.98  22.7i 13RH124   W84  C~4yQs      
2014 12  12.05876  01 24 50.90   -05 12 24.0   23.0i 13RH124   W84  C~3clA      
2014 12  16.11094  01 24 43.852  -05 12 24.59  23.2r 13RH124   W84  C~4yQs      
2014 12  16.11094  01 24 43.85   -05 12 24.6   23.2r 13RH124   W84  C~3clA      
2014 12  16.11366  01 24 43.849  -05 12 24.73  23.3i 13RH124   W84  C~4yQs      
2016 08  16.42183  01 39 25.838  -04 48 32.44  23.4r 13RH124   W84  C~4yQs      
2016 08  16.42183  01 39 25.84   -04 48 32.4   23.5r 13RH124   W84  C~3clA      
2016 08  29.34532  01 39 01.308  -04 55 32.97  23.7g 13RH124   W84  C~4yQs      
2016 08  29.34532  01 39 01.31   -04 55 33.0   23.8g 13RH124   W84  C~3clA      
2016 10  26.26726  01 35 37.023  -05 26 50.48  23.5g 13RH124   W84  C~4yQs      
2016 11  07.14505  01 34 50.580  -05 31 23.27  22.8i 13RH124   W84  C~4yQs      
2016 11  07.14505  01 34 50.58   -05 31 23.3   22.7i 13RH124   W84  C~3clA      
2016 11  25.07957  01 33 48.763  -05 36 01.16  22.6r 13RH124   W84  C~4yQs      
2016 11  25.07957  01 33 48.77   -05 36 01.1   23.0r 13RH124   W84  C~3clA      
2017 10  22.24122  01 40 05.232  -05 37 28.42  23.8g 13RH124   W84  C~4yQs      
2017 11  23.14423  01 38 05.255  -05 48 07.98  23.1r 13RH124   W84  C~4yQs      
2017 11  23.14561  01 38 05.240  -05 48 08.06  23.4g 13RH124   W84  C~4yQs      
2018 09  21.35873  01 46 16.743  -05 33 16.86  22.9i 13RH124   W84  C~4yQs      

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    -0.20       0.00     0.04
     2   0.0027      0.00     0.06       0.00     0.02
     3   0.0027      0.00    -0.01       0.00    -0.00
     4   0.0083      0.00    -0.02       0.00     0.01
     5   0.0628      0.00     0.14       0.00     0.11
     6   0.0628      0.00     0.03       0.00    -0.01
     7   0.0628      0.00     0.06       0.00    -0.02
     8   0.0680      0.00    -0.00       0.00     0.11
     9   0.1498      0.00    -0.06       0.00     0.00
    10   0.1499      0.00    -0.07       0.00    -0.01
    11   0.1502      0.00     0.05       0.00    -0.11
    12   1.1386      0.00    -0.11       0.00     0.14
    13   1.1386      0.00     0.09       0.00    -0.08
    14   1.1386      0.00     0.11       0.00     0.01
    15   1.2559      0.00     0.05       0.00    -0.05
    16   1.2559      0.00    -0.01       0.00    -0.07
    17   1.2670      0.00    -0.03       0.00    -0.01
    18   1.2670      0.00    -0.00       0.00     0.00
    19   1.2670      0.00     0.02       0.00    -0.14
    20   2.9352      0.00     0.02       0.00     0.12
    21   2.9352      0.00    -0.01       0.00     0.08
    22   2.9706      0.00    -0.01       0.00    -0.01
    23   2.9706      0.00    -0.04       0.00     0.02
    24   3.1291      0.00    -0.26       0.00    -0.25
    25   3.1617      0.00     0.02       0.00    -0.08
    26   3.1617      0.00     0.02       0.00    -0.05
    27   3.2108      0.00     0.09       0.00     0.15
    28   3.2108      0.00    -0.01       0.00     0.09
    29   4.1174      0.00     0.16       0.00    -0.04
    30   4.2048      0.00     0.11       0.00     0.09
    31   4.2048      0.00    -0.05       0.00     0.02
    32   5.0322      0.00    -0.01       0.00    -0.04

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.

13RH124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        44.587    44.587    44.587
ecceobj         0.081     0.081     0.081
incobj         35.687    35.687    35.687
qmin           39.583    39.583    39.584
qmax           49.366    49.364    49.368
amean          44.369    44.369    44.369
amin           44.025    44.027    44.024
amax           44.736    44.735    44.737
emean           0.091     0.091     0.091
emin            0.080     0.080     0.080
emax            0.103     0.103     0.104
imean          35.409    35.409    35.409
imin           35.177    35.178    35.177
imax           35.645    35.646    35.644
excite_mean     0.587     0.587     0.587
fracstop        1.000     1.000     1.000
cjmean          2.649     2.649     2.649

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       154.8     154.7     154.8
kozaiamp        180.0     179.9     179.9