Orbit Fit and Astrometric record for 10JK124

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: 10JK124   
# Created Fri Dec  3 02:10:56 2021
# Orbit generated from Bernstein formalism
# Fitting     25 observations of     26
# Arc:   4.07y
# First observation: 2010/05/11
#  Last observation: 2014/06/04
Preliminary a, adot, b, bdot, g, gdot:
   0.000032   0.023664   0.000011   0.005279   0.025201   0.000000
# Chi-squared of fit:    27.45 DOF:     44 RMS:  0.19
# Min/Max residuals:    -0.50    0.41
# Exact a, adot, b, bdot, g, gdot:
  1.448700E-05  2.384589E-02  4.496564E-06  5.330683E-03  2.512378E-02  2.968610E-03
# Covariance matrix:
  1.4701E-13 -1.6910E-13  9.0204E-15 -3.5441E-14  1.3830E-13 -1.7220E-12
 -1.6910E-13  5.3793E-13 -3.3159E-14  1.2986E-13 -2.0744E-13  6.3255E-12
  9.0204E-15 -3.3159E-14  1.0717E-13 -4.1914E-14  1.6948E-14 -4.1065E-13
 -3.5441E-14  1.2986E-13 -4.1914E-14  5.7476E-14 -6.7923E-14  1.6092E-12
  1.3830E-13 -2.0744E-13  1.6948E-14 -6.7923E-14  1.2117E-12 -3.2503E-12
 -1.7220E-12  6.3255E-12 -4.1065E-13  1.6092E-12 -3.2503E-12  7.8348E-11
#      lat0       lon0       xBary       yBary       zBary        JD0
   -9.468993 -118.024174    0.211274   -0.162649   -0.975108  2455327.604276
# Heliocentric elements and errors
Epoch:              2455320.5000  =  2010/05/04
Mean Anomaly:           88.46865 +/-     0.140
Argument of Peri:      221.48946 +/-     0.105
Long of Asc Node:      277.58912 +/-     0.001
Inclination:            15.50376 +/-     0.000
Eccentricity:         0.11487011 +/-    0.0003
Semi-Major Axis:     40.37053317 +/-    0.0102
Time of Perihelion: 2432296.4328 +/-      35.3
Perihelion:          35.73316553 +/-    0.0162
Aphelion:            45.00790081 +/-    0.0177
Period (y)              256.5104 +/-      0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -19.09279096 +/-    0.0008
Ecliptic Y          -35.43314722 +/-    0.0015
Ecliptic Z           -6.54795294 +/-    0.0003
Ecliptic XDOT         0.00210081 +/-    0.0000
Ecliptic YDOT        -0.00158100 +/-    0.0000
Ecliptic ZDOT         0.00051973 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.77889499 +/-    0.0014
Geocenter to KBO     39.80292590 +/-    0.0017
# Hcoef:  5.31

The following table shows the complete astrometric record for 10JK124. 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 (10JK124) followed by the observatory code and reference code for the source of the astrometry.

2010 05  11.10351  15 50 50.867  -29 49 15.54  21.1R 10JK124   304  C~0HbC      
2010 05  11.16819  15 50 50.510  -29 49 14.47        10JK124   304  C~0HbC      
2010 05  11.22324  15 50 50.208  -29 49 13.70        10JK124   304  C~0HbC      
2010 05  18.09658  15 50 12.307  -29 47 19.27  21.3R 10JK124   304  C~0HbC      
2010 05  18.20695  15 50 11.702  -29 47 17.21        10JK124   304  C~0HbC      
2010 05  18.29880  15 50 11.159  -29 47 15.61        10JK124   304  C~0HbC      
2010 05  25.13440  15 49 33.301  -29 45 08.44  20.8R 10JK124   304  C~0I3j      
2010 05  25.19253  15 49 32.963  -29 45 07.33  21.0R 10JK124   304  C~0I3j      
2010 05  25.25375  15 49 32.610  -29 45 06.32        10JK124   304  C~0I3j      
2010 06  04.39231  15 48 37.37   -29 41 37.6   21.0i 10JK124   F51  C~3spb      
2010 06  04.40347  15 48 37.32   -29 41 37.4         10JK124   F51  C~3spb      
2011 05  02.16891  15 58 05.171  -29 50 26.18  21.0R 10JK124   304  C~0Wc5      
2011 05  02.24996  15 58 04.746  -29 50 25.35        10JK124   304  C~0Wc5      
2011 05  02.34591  15 58 04.238  -29 50 24.29        10JK124   304  C~0Wc5      
2011 05  05.17920  15 57 49.478  -29 49 50.00        10JK124   304  C~0Wc5      
2011 05  05.24813  15 57 49.129  -29 49 49.07        10JK124   304  C~0Wc5      
2011 05  05.32076  15 57 48.748  -29 49 48.20  20.8R 10JK124   304  C~0Wc5      
2013 05  04.373055 16 10 33.85   -29 44 36.0   21.5r 10JK124   W84  C~3spb      
2013 05  04.374549 16 10 33.84   -29 44 35.9   21.4r 10JK124   W84  C~3spb      
2013 05  04.376033 16 10 33.84   -29 44 35.9   21.5r 10JK124   W84  C~3spb      
2013 06  27.33864  16 05 49.60   -29 29 11.6   21.5r 10JK124   F51  C~3spb      
2013 06  27.36034  16 05 49.57   -29 29 11.4   21.2i 10JK124   F51  C~3spb      
2014 06  04.35745  16 14 05.13   -29 33 10.3         10JK124   F51  C~3spb      
2014 06  04.36607  16 14 05.11   -29 33 10.7         10JK124   F51  C~3spb      
2014 06  04.37469  16 14 05.04   -29 33 10.4         10JK124   F51  C~3spb      
2014 06  04.38333  16 14 04.97   -29 33 10.3         10JK124   F51  C~3spb      

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     0.11       0.00    -0.24
     2   0.0002     -4.77     0.11       0.04    -0.15
     3   0.0003     -8.77     0.17      -0.05    -0.22
     4   0.0191   -515.16    -0.19       5.06    -0.00
     5   0.0194   -523.29    -0.00       5.37     0.18
     6   0.0197   -530.54    -0.32       5.40     0.06
     7   0.0384  -1039.33     0.16      22.32     0.25
     8   0.0386  -1043.87     0.02      22.44     0.20
     9   0.0387  -1048.58    -0.05      22.42    -0.02
    10   0.0665  -1796.45    -0.05      68.38    -0.03
    11   0.0665  -1797.13     0.09      68.43    -0.04
    12   0.9749   5544.08     0.30    1105.19     0.01
    13   0.9751   5538.50     0.30    1104.89    -0.08
    14   0.9753   5531.80     0.23    1104.61    -0.15
    15   0.9831   5336.63    -0.50    1099.71     0.07
    16   0.9833   5331.99    -0.27    1099.71     0.19
    17   0.9835   5326.96    -0.17    1099.57     0.16
    18   2.9823  15079.47     0.01    3275.33    -0.26
    19   2.9823  15079.32    -0.04    3275.40    -0.19
    20   2.9823  15079.32     0.07    3275.40    -0.18
    21   3.1300  11251.20     0.11    3521.34     0.13
    22   3.1301  11250.78 (   1.05)   3521.47 (   0.04)
    23   4.0664  17695.07    -0.14    4424.66     0.41
    24   4.0664  17694.88     0.32    4424.22    -0.07
    25   4.0665  17693.92     0.00    4424.37     0.03
    26   4.0665  17693.00    -0.27    4424.31    -0.07

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.

10JK124    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        40.149    40.180    40.118
ecceobj         0.116     0.117     0.115
incobj         15.534    15.534    15.534
qmin           34.600    34.652    34.485
qmax           46.562    46.313    46.703
amean          40.425    40.417    40.412
amin           40.067    40.057    40.033
amax           40.815    40.823    40.805
emean           0.119     0.117     0.119
emin            0.098     0.099     0.096
emax            0.142     0.138     0.145
imean          17.342    17.377    17.250
imin           15.972    16.050    15.807
imax           18.354    18.400    18.379
excite_mean     0.321     0.321     0.320
fracstop        1.000     1.000     1.000
cjmean          2.939     2.939     2.940

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       181.5     183.1     180.1
kozaiamp        180.0     180.0     180.0