Orbit Fit and Astrometric record for 10JB80

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: 10JB80    
# Created Wed Oct 18 01:37:50 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   13 observations of   13
# Arc:  57.14d
# First observation: 2010/05/11
#  Last observation: 2010/07/08
# Chi-squared of fit:   115.19 DOF:   20 RMS:  0.53
# Min/Max residuals:    -1.01    1.28
# Exact a, adot, b, bdot, g, gdot:
  3.394121E-05  2.186017E-01 -1.509478E-05 -6.902005E-02  1.068590E-01 -1.916872E-04
# Covariance matrix:
  3.2309E-13 -2.4380E-11  2.3666E-14 -2.2495E-12 -1.1510E-12  5.5294E-10
 -2.4380E-11  2.4601E-08 -1.2610E-11  9.2201E-10  2.8827E-09 -3.9661E-07
  2.3666E-14 -1.2610E-11  2.2654E-13 -2.6964E-12 -1.2674E-12  2.3132E-10
 -2.2495E-12  9.2201E-10 -2.6964E-12  9.8627E-11  8.3609E-11 -1.8093E-08
 -1.1510E-12  2.8827E-09 -1.2674E-12  8.3609E-11  3.6406E-10 -4.3203E-08
  5.5294E-10 -3.9661E-07  2.3132E-10 -1.8093E-08 -4.3203E-08  6.8407E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -4.344333 -148.480550   -0.333037   -0.072314   -0.951850  2455328.474796
# Heliocentric elements and errors
Epoch:              2455328.5000  =  2010/05/12
Mean Anomaly:            6.09442 +/-     2.519
Argument of Peri:      183.59702 +/-     3.905
Long of Asc Node:       21.03599 +/-     0.017
Inclination:            17.84223 +/-     0.023
Eccentricity:         0.20251354 +/-    0.0006
Semi-Major Axis:     12.90336380 +/-    0.0138
Time of Perihelion: 2455041.8957 +/-     118.5
Perihelion:          10.29025796 +/-    0.0135
Aphelion:            15.51646965 +/-    0.0184
Period (y)               46.3514 +/-      0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -8.58994865 +/-    0.0014
Ecliptic Y           -5.66364346 +/-    0.0009
Ecliptic Z           -0.70903016 +/-    0.0001
Ecliptic XDOT         0.00304814 +/-    0.0001
Ecliptic YDOT        -0.00469593 +/-    0.0000
Ecliptic ZDOT        -0.00176296 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   10.31341950 +/-    0.0013
Geocenter to KBO      9.35815378 +/-    0.0017
# Hcoef: 11.68

The following table shows the complete astrometric record for 10JB80. 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 (10JB80) followed by the observatory code and reference code for the source of the astrometry.

2010 05  11.97403  13 51 11.715  -16 04 21.36  21.4R 10JB80    809  C~0HKu      
2010 05  12.05991  13 51 10.331  -16 04 17.04  21.7R 10JB80    809  C~0HKu      
2010 05  12.14484  13 51 08.925  -16 04 13.36  21.1R 10JB80    809  C~0HKu      
2010 05  13.23976  13 50 51.746  -16 03 14.47  21.1R 10JB80    809  C~0HKu      
2010 05  13.30409  13 50 50.813  -16 03 10.65        10JB80    809  C~0HKu      
2010 05  21.00285  13 48 56.826  -15 56 33.92        10JB80    807  C70575      
2010 05  21.04762  13 48 56.205  -15 56 31.77        10JB80    807  C70575      
2010 06  05.04171  13 45 56.387  -15 45 53.77        10JB80    807  C~0IRv      
2010 06  05.11994  13 45 55.586  -15 45 51.26        10JB80    807  C~0IRv      
2010 06  14.18946  13 44 39.79   -15 41 36.8   22.1R 10JB80    688  C~0Inc      
2010 06  14.23384  13 44 39.42   -15 41 36.5         10JB80    688  C~0Inc      
2010 07  07.99571  13 43 37.778  -15 40 55.79  21.7R 10JB80    807  C~0KZk      
2010 07  08.11027  13 43 37.961  -15 40 58.27  21.9R 10JB80    807  C~0KZk      

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     0.06       0.00    -0.79
  2   0.0002      0.00     0.17       0.00     0.78
  3   0.0005      0.00    -0.37       0.00    -0.10
  4   0.0035      0.00     0.02       0.00    -0.15
  5   0.0036      0.00     1.28       0.00     0.16
  6   0.0247      0.00    -0.01       0.00    -0.74
  7   0.0248      0.00     0.25       0.00    -0.77
  8   0.0659      0.00     0.17       0.00    -0.10
  9   0.0661      0.00     0.09       0.00    -0.29
 10   0.0909      0.00     0.11       0.00    -0.33
 11   0.0911      0.00    -0.69       0.00    -1.01
 12   0.1561      0.00     0.09       0.00     0.74
 13   0.1564      0.00     0.34       0.00     0.46

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.

10JB80    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        12.958    12.958    12.958
ecceobj         0.203     0.203     0.203
incobj         17.806    17.806    17.806
qmin            8.982     9.152     9.953
qmax           19.208    19.145    21.034
amean          13.046    13.782    14.395
amin           10.414    10.618    12.958
amax           14.537    14.743    15.628
emean           0.234     0.270     0.296
emin            0.113     0.138     0.203
emax            0.321     0.312     0.346
imean          15.913    16.400    15.965
imin           12.104    15.181    15.000
imax           17.782    17.782    17.782
excite_mean     0.365     0.393     0.405
fracstop        0.004     0.003     0.002
cjmean          3.556     3.447     3.361

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       207.9     213.6     260.0
kozaiamp        172.5     174.8     176.6