Orbit Fit and Astrometric record for 13RP124

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: 13RP124   
# Created Fri Oct  7 01:14:25 2022
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     38 observations of     38
# Arc:   8.00y
# First observation: 2013/09/09
#  Last observation: 2021/09/08
# Chi-squared of fit:     9.55 DOF:     70 RMS:  0.09
# Min/Max residuals:    -0.24    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.474222E-05  2.672859E-02  9.881625E-06  1.647172E-02  2.777348E-02  3.684673E-04
# Covariance matrix:
  2.4692E-13  1.3699E-14 -1.2623E-14  2.2944E-14  3.0424E-13  1.9611E-13
  1.3699E-14  4.8959E-14 -1.7504E-14  2.7521E-14  8.9248E-14  2.3211E-13
 -1.2623E-14 -1.7504E-14  7.1179E-14 -2.5733E-14 -3.9160E-14 -9.8764E-14
  2.2944E-14  2.7521E-14 -2.5733E-14  2.6229E-14  6.6166E-14  1.5604E-13
  3.0424E-13  8.9248E-14 -3.9160E-14  6.6166E-14  5.5570E-13  5.6191E-13
  1.9611E-13  2.3211E-13 -9.8764E-14  1.5604E-13  5.6191E-13  1.3167E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -7.180523   18.233751    0.530669   -0.107037   -0.850392  2456544.814348
# Heliocentric elements and errors
Epoch:              2456544.5000  =  2013/09/09
Mean Anomaly:          359.78141 +/-     0.008
Argument of Peri:      347.08835 +/-     0.013
Long of Asc Node:       28.66579 +/-     0.000
Inclination:            32.21298 +/-     0.000
Eccentricity:         0.19361483 +/-    0.0001
Semi-Major Axis:     45.71052699 +/-    0.0060
Time of Perihelion: 2456613.0400 +/-      22.4
Perihelion:          36.86029097 +/-    0.0062
Aphelion:            54.56076300 +/-    0.0082
Period (y)              309.0527 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.90915360 +/-    0.0009
Ecliptic Y           10.94473878 +/-    0.0003
Ecliptic Z           -4.50021928 +/-    0.0001
Ecliptic XDOT        -0.00060361 +/-    0.0000
Ecliptic YDOT         0.00257618 +/-    0.0000
Ecliptic ZDOT         0.00160661 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.86038971 +/-    0.0009
Geocenter to KBO     36.00559849 +/-    0.0010
# Hcoef:  6.95

The following table shows the complete astrometric record for 13RP124. 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 (13RP124) followed by the observatory code and reference code for the source of the astrometry.

2013 09  09.31357  01 18 10.946  +00 30 16.10  23.3g 13RP124   W84  C~4yQs      
2013 09  12.35288  01 17 57.475  +00 29 04.87  23.5g 13RP124   W84  C~4yQs      
2013 09  12.35288  01 17 57.48   +00 29 04.9   23.4g 13RP124   W84  C~3clA      
2013 10  03.12407  01 16 14.151  +00 20 38.41  23.1g 13RP124   W84  C~4yQs      
2013 10  03.12407  01 16 14.15   +00 20 38.3   23.2g 13RP124   W84  C~3clA      
2013 10  07.09488  01 15 52.88   +00 19 03.2   23.3g 13RP124   W84  C~3qKc      
2013 10  07.09752  01 15 52.87   +00 19 03.2         13RP124   W84  C~3qKc      
2013 10  08.05406  01 15 47.71   +00 18 40.6   22.4i 13RP124   W84  C~3wor      
2013 10  08.05937  01 15 47.69   +00 18 40.6         13RP124   W84  C~3wor      
2013 10  08.07531  01 15 47.60   +00 18 40.0         13RP124   W84  C~3qKc      
2013 10  08.07797  01 15 47.58   +00 18 40.1         13RP124   W84  C~3qKc      
2013 10  08.08321  01 15 47.56   +00 18 40.0         13RP124   W84  C~3qKc      
2013 10  09.12943  01 15 41.91   +00 18 15.4         13RP124   W84  C~3wor      
2013 10  09.35023  01 15 40.70   +00 18 10.4         13RP124   W84  C~3wor      
2013 11  08.20827  01 13 04.271  +00 08 44.41  22.7r 13RP124   W84  C~4yQs      
2013 11  08.20827  01 13 04.27   +00 08 44.4   22.8r 13RP124   W84  C~3clA      
2013 11  08.20964  01 13 04.278  +00 08 44.47  22.1i 13RP124   W84  C~4yQs      
2013 11  08.20964  01 13 04.28   +00 08 44.5   22.2i 13RP124   W84  C~3clA      
2014 11  17.14736  01 16 38.835  +01 34 08.08  22.4z 13RP124   W84  C~4yQs      
2014 11  27.08042  01 15 58.668  +01 32 56.33  22.7z 13RP124   W84  C~4yQs      
2015 11  02.13274  01 22 06.837  +03 04 48.26  23.6g 13RP124   W84  C~4yQs      
2015 11  06.18915  01 21 46.153  +03 03 39.10  22.6i 13RP124   W84  C~4yQs      
2015 11  06.18915  01 21 46.15   +03 03 39.1   22.4i 13RP124   W84  C~3clA      
2015 11  06.19053  01 21 46.140  +03 03 39.13  22.2r 13RP124   W84  C~4yQs      
2015 11  06.19053  01 21 46.14   +03 03 39.1   22.6r 13RP124   W84  C~3clA      
2015 11  06.19192  01 21 46.128  +03 03 38.89  22.8g 13RP124   W84  C~4yQs      
2015 11  06.19192  01 21 46.13   +03 03 38.9   22.9g 13RP124   W84  C~3clA      
2016 10  23.21286  01 27 11.102  +04 34 56.11  22.3r 13RP124   W84  C~4yQs      
2016 10  23.21286  01 27 11.11   +04 34 56.1   22.3r 13RP124   W84  C~3clA      
2016 10  23.21423  01 27 11.089  +04 34 56.04  23.0g 13RP124   W84  C~4yQs      
2016 10  23.21423  01 27 11.09   +04 34 56.0   22.9g 13RP124   W84  C~3clA      
2016 10  29.15737  01 26 39.165  +04 32 55.50  22.3i 13RP124   W84  C~4yQs      
2016 10  29.15737  01 26 39.16   +04 32 55.5   22.5i 13RP124   W84  C~3clA      
2016 11  07.18357  01 25 52.447  +04 30 11.82  22.1z 13RP124   W84  C~4yQs      
2016 11  07.18357  01 25 52.45   +04 30 11.8   22.1z 13RP124   W84  C~3clA      
2021 09  08.434429 01 52 32.161  +12 00 04.78  22.6w 13RP124   F52  C~52RJ      
2021 09  08.444753 01 52 32.128  +12 00 04.51  22.3w 13RP124   F52  C~52RJ      
2021 09  08.455088 01 52 32.084  +12 00 04.50  22.4w 13RP124   F52  C~52RJ      

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     0.13       0.00    -0.06
     2   0.0083      0.00    -0.10       0.00     0.13
     3   0.0083      0.00    -0.02       0.00     0.16
     4   0.0652      0.00     0.07       0.00    -0.11
     5   0.0652      0.00     0.08       0.00    -0.00
     6   0.0761      0.00    -0.08       0.00    -0.10
     7   0.0761      0.00    -0.01       0.00    -0.04
     8   0.0787      0.00    -0.11       0.00    -0.06
     9   0.0787      0.00     0.02       0.00     0.07
    10   0.0787      0.00    -0.03       0.00    -0.16
    11   0.0788      0.00    -0.11       0.00     0.01
    12   0.0788      0.00     0.02       0.00     0.03
    13   0.0816      0.00     0.08       0.00    -0.05
    14   0.0822      0.00     0.10       0.00     0.10
    15   0.1640      0.00    -0.12       0.00    -0.01
    16   0.1640      0.00    -0.13       0.00    -0.02
    17   0.1640      0.00     0.12       0.00     0.10
    18   0.1640      0.00     0.09       0.00     0.07
    19   1.1878      0.00     0.16       0.00     0.15
    20   1.2150      0.00    -0.02       0.00    -0.02
    21   2.1460      0.00    -0.10       0.00    -0.24
    22   2.1571      0.00    -0.02       0.00     0.04
    23   2.1571      0.00     0.02       0.00     0.04
    24   2.1571      0.00    -0.07       0.00     0.06
    25   2.1571      0.00    -0.07       0.00     0.09
    26   2.1571      0.00    -0.11       0.00    -0.11
    27   2.1571      0.00    -0.14       0.00    -0.12
    28   3.1209      0.00     0.15       0.00     0.02
    29   3.1209      0.00     0.03       0.00     0.03
    30   3.1209      0.00    -0.04       0.00    -0.05
    31   3.1209      0.00    -0.06       0.00    -0.01
    32   3.1371      0.00     0.06       0.00    -0.04
    33   3.1371      0.00     0.13       0.00    -0.04
    34   3.1619      0.00     0.13       0.00     0.09
    35   3.1619      0.00     0.08       0.00     0.11
    36   7.9976      0.00    -0.06       0.00     0.08
    37   7.9976      0.00     0.03       0.00    -0.08
    38   7.9976      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.

13RP124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        45.969    45.969    45.969
ecceobj         0.198     0.198     0.198
incobj         32.157    32.157    32.157
qmin           35.602    35.623    35.580
qmax           56.177    56.045    56.074
amean          45.645    45.646    45.645
amin           45.232    45.246    45.255
amax           46.111    46.092    46.095
emean           0.201     0.201     0.201
emin            0.184     0.184     0.184
emax            0.219     0.217     0.217
imean          31.662    31.668    31.663
imin           31.252    31.255    31.261
imax           32.104    32.112    32.102
excite_mean     0.562     0.562     0.562
fracstop        1.000     1.000     1.000
cjmean          2.713     2.713     2.713

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       177.9     177.8     177.9
kozaiamp        180.0     180.0     180.0