Orbit Fit and Astrometric record for 10GS136

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: 10GS136   
# Created Fri Nov 22 02:09:05 2024
# Orbit generated from Bernstein formalism
# Fitting     10 observations of     10
# Arc:  15.09d
# First observation: 2010/04/05
#  Last observation: 2010/04/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000007  -0.273893  -0.000001   0.550174   0.120984   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit:    21.83 DOF:     15 RMS:  0.26
# Min/Max residuals:    -0.38    0.64
# Exact a, adot, b, bdot, g, gdot:
  5.715476E-06  5.931740E-02  5.015150E-05  5.527477E-01  1.745714E-01  1.049704E-01
# Covariance matrix:
  1.7138E-12  1.2712E-08  1.5396E-13  8.6363E-11  2.0427E-09  1.6893E-09
  1.2712E-08  1.3163E-04  1.6993E-09  8.2136E-07  2.1107E-05  1.3877E-05
  1.5396E-13  1.6993E-09  4.8990E-13 -6.5273E-12  2.7145E-10  5.7661E-12
  8.6363E-11  8.2136E-07 -6.5273E-12  8.0513E-09  1.3240E-07  2.0330E-07
  2.0427E-09  2.1107E-05  2.7145E-10  1.3240E-07  3.3847E-06  2.2600E-06
  1.6893E-09  1.3877E-05  5.7661E-12  2.0330E-07  2.2600E-06  7.2972E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -5.208405 -155.922097    0.158116   -0.090007   -0.986976  2455291.750056
# Heliocentric elements and errors
Epoch:              2455290.5000  =  2010/04/04
Mean Anomaly:            1.81483 +/-     0.592
Argument of Peri:      329.99286 +/-     1.058
Long of Asc Node:      203.26084 +/-     0.080
Inclination:            83.54261 +/-     1.179
Eccentricity:         0.79507309 +/-    0.0421
Semi-Major Axis:     31.34965012 +/-    6.7738
Time of Perihelion: 2454967.2927 +/-      12.1
Perihelion:           6.42438709 +/-    1.9148
Aphelion:            56.27491316 +/-   12.2308
Period (y)              175.5324 +/-     56.89
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -6.17368250 +/-    0.0549
Ecliptic Y           -2.58978309 +/-    0.0245
Ecliptic Z           -0.51969427 +/-    0.0055
Ecliptic XDOT        -0.00183372 +/-    0.0001
Ecliptic YDOT        -0.00183339 +/-    0.0002
Ecliptic ZDOT         0.00848361 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO    6.71501409 +/-    0.0513
Geocenter to KBO      5.72831624 +/-    0.0604
# Hcoef: 12.60

The following table shows the complete astrometric record for 10GS136. 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 (10GS136) followed by the observatory code and reference code for the source of the astrometry.

2010 04  05.24929  13 21 16.34   -14 10 33.8   20.9V 10GS136   691  C~0GZ1      
2010 04  05.26452  13 21 15.93   -14 10 26.3   20.9V 10GS136   691  C~0GZ1      
2010 04  05.27972  13 21 15.42   -14 10 18.7   21.1V 10GS136   691  C~0GZ1      
2010 04  15.30392  13 16 24.70   -12 46 08.9   20.1V 10GS136   G96  C~0GZ1      
2010 04  15.31162  13 16 24.45   -12 46 04.8   20.0V 10GS136   G96  C~0GZ1      
2010 04  15.31929  13 16 24.27   -12 46 00.2   20.2V 10GS136   G96  C~0GZ1      
2010 04  18.37783  13 14 56.94   -12 20 05.2   21.4g 10GS136   F51  C~7lrk      
2010 04  18.42058  13 14 55.69   -12 19 43.2   21.2g 10GS136   F51  C~7lrk      
2010 04  18.42890  13 14 55.47   -12 19 39.2   21.2g 10GS136   F51  C~7lrk      
2010 04  20.33552  13 14 01.77   -12 03 29.5   20.9r 10GS136   F51  C~7lrk      

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    -0.07       0.00    -0.02
     2   0.0000     -8.34     0.47       4.72     0.15
     3   0.0001    -18.06    -0.38       8.99    -0.13
     4   0.0275  -5851.35     0.08    3089.04    -0.30
     5   0.0275  -5856.30    -0.32    3091.45    -0.26
     6   0.0276  -5860.48     0.02    3094.71     0.64
     7   0.0359  -7636.35     0.18    4048.87    -0.17
     8   0.0361  -7661.71    -0.09    4062.27     0.01
     9   0.0361  -7666.22     0.28    4064.75    -0.09
    10   0.0413  -8765.75    -0.18    4662.73     0.16

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.

10GS136    quality flag:1

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        31.534    39.553    26.527
ecceobj         0.796     0.830     0.766
incobj         83.356    84.291    82.972
qmin            5.949     5.982     5.917
qmax           57.154    72.393    55.358
amean          29.018    35.939    28.585
amin           27.086    34.128    26.527
amax           31.769    39.553    30.674
emean           0.786     0.822     0.788
emin            0.775     0.810     0.766
emax            0.800     0.831     0.805
imean          83.864    84.692    82.911
imin           83.466    84.211    82.404
imax           84.125    85.183    83.187
excite_mean     1.267     1.291     1.267
fracstop        0.004     0.008     0.002
cjmean          1.184     0.968     1.217

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       320.3     316.6     330.2
kozaiamp         10.6      12.7       2.1