Orbit Fit and Astrometric record for 10JJ124

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: 10JJ124   
# Created Wed Sep 26 00:57:56 2018
# Orbit generated from Bernstein formalism
# Fitting   21 observations of   21
# Arc:   8.09y
# First observation: 2010/05/11
#  Last observation: 2018/06/14
Preliminary a, adot, b, bdot, g, gdot:
  -0.002770   0.069488  -0.003888   0.045015   0.059460   0.000000
# Chi-squared of fit:    23.28 DOF:   36 RMS:  0.19
# Min/Max residuals:    -0.35    0.38
# Exact a, adot, b, bdot, g, gdot:
  2.175872E-05  6.131350E-02  1.528435E-05  4.091338E-02  4.377045E-02 -5.541769E-03
# Covariance matrix:
  1.2881E-13 -4.7450E-14  1.2513E-14 -2.1096E-14  1.6281E-14 -5.9559E-14
 -4.7450E-14  1.3256E-13 -4.6242E-14  7.0293E-14  2.1007E-13  2.0221E-13
  1.2513E-14 -4.6242E-14  1.2385E-13 -4.6760E-14 -7.1224E-14 -7.7905E-14
 -2.1096E-14  7.0293E-14 -4.6760E-14  5.1748E-14  1.0015E-13  1.2017E-13
  1.6281E-14  2.1007E-13 -7.1224E-14  1.0015E-13  6.0976E-13  2.9250E-13
 -5.9559E-14  2.0221E-13 -7.7905E-14  1.2017E-13  2.9250E-13  3.4473E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
  -19.134911 -115.932757    0.247487   -0.321294   -0.925979  2455327.587566
# Heliocentric elements and errors
Epoch:              2455320.5000  =  2010/05/04
Mean Anomaly:          358.77806 +/-     0.001
Argument of Peri:      339.63145 +/-     0.001
Long of Asc Node:      268.83455 +/-     0.000
Inclination:            37.74561 +/-     0.000
Eccentricity:         0.71853132 +/-    0.0001
Semi-Major Axis:     83.86902797 +/-    0.0249
Time of Perihelion: 2456272.7416 +/-       0.1
Perihelion:          23.60650426 +/-    0.0096
Aphelion:           144.13155168 +/-    0.0433
Period (y)              768.0874 +/-      0.34
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -10.08585505 +/-    0.0002
Ecliptic Y          -20.18653413 +/-    0.0003
Ecliptic Z           -7.48859421 +/-    0.0001
Ecliptic XDOT         0.00322710 +/-    0.0000
Ecliptic YDOT        -0.00213110 +/-    0.0000
Ecliptic ZDOT         0.00253133 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   23.77603153 +/-    0.0003
Geocenter to KBO     22.84646538 +/-    0.0004
# Hcoef:  6.63

The following table shows the complete astrometric record for 10JJ124. 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 (10JJ124) followed by the observatory code and reference code for the source of the astrometry.

2010 05  11.08680  15 50 05.770  -39 41 43.00  20.2R 10JJ124   304  C~0HbC      
2010 05  11.15146  15 50 05.165  -39 41 40.61        10JJ124   304  C~0HbC      
2010 05  11.20653  15 50 04.625  -39 41 38.71        10JJ124   304  C~0HbC      
2010 05  18.09365  15 48 58.975  -39 37 07.14  20.3R 10JJ124   304  C~0HbC      
2010 05  18.20425  15 48 57.899  -39 37 02.20        10JJ124   304  C~0HbC      
2010 05  18.29604  15 48 56.977  -39 36 58.27        10JJ124   304  C~0HbC      
2010 05  25.13159  15 47 51.468  -39 31 43.06  19.7R 10JJ124   304  C~0I3j      
2010 05  25.18979  15 47 50.881  -39 31 40.21  20.2R 10JJ124   304  C~0I3j      
2010 05  25.24807  15 47 50.323  -39 31 37.32        10JJ124   304  C~0I3j      
2011 05  03.16251  16 11 29.180  -38 09 10.86  19.6R 10JJ124   304  C~0Wc5      
2011 05  03.24978  16 11 28.410  -38 09 08.79        10JJ124   304  C~0Wc5      
2011 05  03.34601  16 11 27.550  -38 09 06.55        10JJ124   304  C~0Wc5      
2011 05  12.10182  16 10 09.484  -38 05 02.39        10JJ124   304  C~0Wc5      
2011 05  12.16775  16 10 08.868  -38 05 00.32        10JJ124   304  C~0Wc5      
2013 08  01.04676  16 37 31.72   -33 13 08.4   19.7R 10JJ124   304  C~1oYc      
2013 08  01.15525  16 37 31.32   -33 13 02.1         10JJ124   304  C~1oYc      
2013 08  01.99417  16 37 28.59   -33 12 15.9         10JJ124   304  C~1oYc      
2013 08  02.03814  16 37 28.43   -33 12 13.7         10JJ124   304  C~1oYc      
2013 08  02.13134  16 37 28.12   -33 12 08.2         10JJ124   304  C~1oYc      
2018 06  14.35756  18 02 25.213  -22 16 49.39  20.8R 10JJ124   G37              
2018 06  14.42875  18 02 24.566  -22 16 47.48        10JJ124   G37              

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     0.08       0.00    -0.10
  2   0.0002     -7.34     0.22       0.75     0.05
  3   0.0003    -13.84     0.11       1.19    -0.03
  4   0.0192   -813.90     0.21      93.07     0.10
  5   0.0195   -827.14     0.20      95.03     0.35
  6   0.0197   -838.41    -0.07      96.41     0.23
  7   0.0385  -1648.16     0.08     228.42    -0.05
  8   0.0386  -1655.43    -0.15     229.61    -0.11
  9   0.0388  -1662.38    -0.05     230.93    -0.09
 10   0.9776  13612.73    -0.08    8411.18    -0.27
 11   0.9779  13603.38    -0.16    8411.68    -0.23
 12   0.9781  13592.95    -0.35    8412.17    -0.34
 13   1.0021  12639.03    -0.04    8494.82    -0.10
 14   1.0023  12631.47    -0.04    8495.60    -0.09
 15   3.2251  30424.84     0.24   28970.72     0.07
 16   3.2254  30419.07    -0.03   28976.58     0.30
 17   3.2277  30379.39     0.00   29019.83     0.24
 18   3.2278  30377.11    -0.13   29021.84    -0.01
 19   3.2280  30372.58    -0.13   29027.01     0.33
 20   8.0938 109678.88     0.38   76825.73    -0.21
 21   8.0940 109667.32    -0.30   76828.09    -0.00

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.

10JJ124    quality flag:2

Type:       CENTAURR  CENTAURS  CENTAURS

axisobj        82.334    82.333    82.336
ecceobj         0.714     0.714     0.714
incobj         37.779    37.779    37.779
qmin           22.419    22.376    22.343
qmax          153.867   154.328   163.222
amean          84.294    85.060    88.456
amin           81.496    81.493    82.336
amax           88.617    88.673    93.977
emean           0.714     0.719     0.729
emin            0.665     0.671     0.693
emax            0.741     0.742     0.749
imean          39.662    39.542    39.689
imin           37.817    37.862    37.891
imax           43.878    43.197    43.377
excite_mean     0.958     0.960     0.969
fracstop        0.942     1.000     1.000
cjmean          2.156     2.154     2.144

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       104.8      97.4     104.3
kozaiamp        180.0     180.0     180.0