Orbit Fit and Astrometric record for 13RT124

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: 13RT124   
# Created Mon Dec  6 02:11:48 2021
# Orbit generated from Bernstein formalism
# Fitting     33 observations of     33
# Arc:   4.04y
# First observation: 2013/09/10
#  Last observation: 2017/09/24
Preliminary a, adot, b, bdot, g, gdot:
  -0.000048   0.033625  -0.000006   0.008610   0.027889   0.000000
# Chi-squared of fit:     7.14 DOF:     60 RMS:  0.08
# Min/Max residuals:    -0.18    0.28
# Exact a, adot, b, bdot, g, gdot:
  1.894739E-05  3.378759E-02  4.683806E-06  8.664882E-03  2.803566E-02  2.467966E-03
# Covariance matrix:
  1.5193E-13  2.7900E-14 -4.8064E-15  1.4588E-14  1.6377E-13  4.9489E-13
  2.7900E-14  3.7953E-13 -2.6542E-14  9.8441E-14  3.4298E-13  3.3026E-12
 -4.8064E-15 -2.6542E-14  8.7275E-14 -3.7711E-14 -2.6404E-14 -2.4537E-13
  1.4588E-14  9.8441E-14 -3.7711E-14  5.0019E-14  9.1821E-14  9.1258E-13
  1.6377E-13  3.4298E-13 -2.6404E-14  9.1821E-14  5.3296E-13  3.0908E-12
  4.9489E-13  3.3026E-12 -2.4537E-13  9.1258E-13  3.0908E-12  3.0611E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
  -11.922341   11.723756    0.414764   -0.189651   -0.898696  2456545.793558
# Heliocentric elements and errors
Epoch:              2456540.5000  =  2013/09/05
Mean Anomaly:            3.82086 +/-     0.010
Argument of Peri:      308.96433 +/-     0.029
Long of Asc Node:       49.59249 +/-     0.000
Inclination:            18.27574 +/-     0.000
Eccentricity:         0.44384248 +/-    0.0001
Semi-Major Axis:     65.38062722 +/-    0.0095
Time of Perihelion: 2454491.0822 +/-       5.3
Perihelion:          36.36192754 +/-    0.0071
Aphelion:            94.39932691 +/-    0.0146
Period (y)              528.6665 +/-      0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.15459148 +/-    0.0009
Ecliptic Y            6.87498885 +/-    0.0002
Ecliptic Z           -7.36853453 +/-    0.0002
Ecliptic XDOT        -0.00027457 +/-    0.0000
Ecliptic YDOT         0.00331300 +/-    0.0000
Ecliptic ZDOT         0.00077827 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.57056296 +/-    0.0009
Geocenter to KBO     35.66886269 +/-    0.0009
# Hcoef:  7.68

The following table shows the complete astrometric record for 13RT124. 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 (13RT124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  10.29278  01 01 45.309  -06 20 29.89  24.8g 13RT124   W84  C~4yQt      
2013 09  10.29417  01 01 45.301  -06 20 29.98  23.4r 13RT124   W84  C~4yQt      
2013 09  10.29417  01 01 45.30   -06 20 30.0   23.4r 13RT124   W84  C~3clA      
2013 09  10.33650  01 01 45.122  -06 20 31.27  22.9i 13RT124   W84  C~4yQt      
2013 09  10.33650  01 01 45.12   -06 20 31.3   22.8i 13RT124   W84  C~3clA      
2013 09  11.28057  01 01 40.993  -06 21 00.58  23.8r 13RT124   W84  C~4yQt      
2013 09  11.28057  01 01 40.99   -06 21 00.6   23.8r 13RT124   W84  C~3clA      
2013 10  04.22289  00 59 50.306  -06 32 17.87  23.3r 13RT124   W84  C~4yQt      
2013 10  04.22289  00 59 50.31   -06 32 17.8   23.6r 13RT124   W84  C~3clA      
2013 10  13.18678  00 59 04.394  -06 36 04.49  22.9z 13RT124   W84  C~4yQt      
2013 10  13.19707  00 59 04.330  -06 36 04.92  22.8i 13RT124   W84  C~4yQt      
2013 10  13.19707  00 59 04.33   -06 36 04.8   23.5i 13RT124   W84  C~3clA      
2013 11  05.03102  00 57 13.52   -06 42 47.3   23.5r 13RT124   W84  C~3clA      
2013 11  05.06907  00 57 13.35   -06 42 47.6         13RT124   W84  C~3clA      
2013 11  05.16374  00 57 12.92   -06 42 48.7         13RT124   W84  C~3clA      
2014 11  17.15683  01 02 45.692  -05 31 56.06  22.6i 13RT124   W84  C~4yQt      
2014 11  17.15683  01 02 45.69   -05 31 56.1   22.8i 13RT124   W84  C~3clA      
2014 11  17.16716  01 02 45.659  -05 31 56.26  23.1r 13RT124   W84  C~4yQt      
2014 11  18.17122  01 02 41.846  -05 32 00.26  23.4r 13RT124   W84  C~4yQt      
2014 11  18.17122  01 02 41.85   -05 32 00.3   23.5r 13RT124   W84  C~3clA      
2014 11  21.03813  01 02 31.396  -05 32 08.34  22.8z 13RT124   W84  C~4yQt      
2014 11  21.03813  01 02 31.40   -05 32 08.3   22.8z 13RT124   W84  C~3clA      
2015 11  02.11475  01 10 09.559  -04 17 01.48  23.8r 13RT124   W84  C~4yQt      
2016 08  25.40677  01 21 32.739  -02 35 36.64  23.4i 13RT124   W84  C~4yQt      
2016 08  26.30350  01 21 30.085  -02 35 59.96  23.6r 13RT124   W84  C~4yQt      
2016 10  21.22498  01 17 19.729  -03 01 10.67  22.7z 13RT124   W84  C~4yQt      
2016 10  29.24536  01 16 39.755  -03 03 49.98  22.7r 13RT124   W84  C~4yQt      
2016 10  29.24536  01 16 39.75   -03 03 50.0   22.9r 13RT124   W84  C~3clA      
2016 11  05.14101  01 16 06.877  -03 05 41.57  22.9i 13RT124   W84  C~4yQt      
2016 11  05.14101  01 16 06.88   -03 05 41.6   22.9i 13RT124   W84  C~3clA      
2016 11  05.22427  01 16 06.510  -03 05 42.75  22.9z 13RT124   W84  C~4yQt      
2017 09  18.27179  01 26 14.891  -01 34 31.91  23.6g 13RT124   W84  C~4yQt      
2017 09  24.25475  01 25 47.782  -01 37 19.98  23.0r 13RT124   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     0.02       0.00     0.04
     2   0.0000     -0.14    -0.02      -0.04     0.01
     3   0.0000     -0.17    -0.04      -0.05    -0.00
     4   0.0001     -3.11     0.10      -0.18    -0.02
     5   0.0001     -3.14     0.06      -0.19    -0.04
     6   0.0027    -71.27    -0.11      -3.02     0.00
     7   0.0027    -71.22    -0.06      -3.02     0.01
     8   0.0655  -1854.47     0.11      19.56     0.02
     9   0.0655  -1854.56     0.03      19.52    -0.02
    10   0.0901  -2572.95     0.04      78.33    -0.03
    11   0.0901  -2573.95    -0.13      78.41    -0.03
    12   0.0901  -2574.00    -0.18      78.30    -0.14
    13   0.1526  -4251.54     0.01     352.14    -0.01
    14   0.1527  -4253.99     0.08     352.85     0.09
    15   0.1530  -4260.32     0.01     354.33     0.04
    16   1.1851   1971.33     0.04    2327.43     0.11
    17   1.1851   1971.37     0.08    2327.45     0.13
    18   1.1851   1970.84     0.12    2327.46    -0.05
    19   1.1879   1916.94     0.04    2346.06     0.06
    20   1.1879   1916.90    -0.00    2346.12     0.12
    21   1.1957   1770.26    -0.02    2399.89    -0.06
    22   1.1957   1770.19    -0.09    2399.88    -0.07
    23   2.1432   9847.28    -0.05    3850.28    -0.13
    24   2.9572  21727.27     0.06    5394.57     0.08
    25   2.9596  21680.97     0.05    5388.91    -0.06
    26   3.1128  17600.66    -0.12    5489.20    -0.11
    27   3.1347  16983.34    -0.15    5580.32    -0.04
    28   3.1347  16983.42    -0.07    5580.31    -0.05
    29   3.1536  16483.78    -0.05    5673.01     0.04
    30   3.1536  16483.75    -0.08    5673.06     0.08
    31   3.1538  16478.20     0.28    5674.15    -0.06
    32   4.0218  27147.28    -0.07    7093.91    -0.01
    33   4.0382  26699.76     0.11    7100.88     0.10

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.

13RT124    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        66.065    66.093    66.036
ecceobj         0.450     0.450     0.450
incobj         18.269    18.270    18.269
qmin           35.664    35.582    35.424
qmax           96.773    96.707    97.021
amean          65.383    65.383    65.383
amin           64.532    64.541    64.542
amax           66.540    66.492    66.547
emean           0.444     0.444     0.444
emin            0.435     0.432     0.432
emax            0.454     0.455     0.458
imean          17.390    17.396    17.368
imin           17.224    17.027    16.818
imax           17.593    17.808    17.832
excite_mean     0.535     0.535     0.535
fracstop        1.000     1.000     1.000
cjmean          2.981     2.981     2.981

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       182.7     163.1     187.1
kozaiamp        180.0     180.0     180.0