Orbit Fit and Astrometric record for 06QC181

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: 06QC181   
# Created Fri Mar 29 01:12:49 2024
# Orbit generated from Bernstein formalism
# Fitting      6 observations of      6
# Arc:  60.06d
# First observation: 2006/08/21
#  Last observation: 2006/10/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000000   0.016185   0.000001  -0.006594   0.020662   0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit:    33.83 DOF:      7 RMS:  0.42
# Min/Max residuals:    -0.89    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.130290E-05  1.415896E-02 -4.476092E-06 -6.603132E-03  2.032699E-02  1.350542E-02
# Covariance matrix:
  5.5986E-12  7.9767E-09  1.5655E-13  3.1388E-11  1.3283E-09 -2.2004E-09
  7.9767E-09  1.2481E-05  2.4453E-10  4.9792E-08  2.0757E-06 -4.0882E-06
  1.5655E-13  2.4453E-10  4.9546E-13 -2.0752E-12  4.0709E-11 -6.5758E-11
  3.1388E-11  4.9792E-08 -2.0752E-12  2.6978E-10  8.1902E-09 -4.7421E-08
  1.3283E-09  2.0757E-06  4.0709E-11  8.1902E-09  3.4545E-07 -5.9609E-07
 -2.2004E-09 -4.0882E-06 -6.5758E-11 -4.7421E-08 -5.9609E-07  3.0098E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.101150    3.422946    0.583846   -0.030205   -0.826597  2453968.726834
# Heliocentric elements and errors
Epoch:              2453960.5000  =  2006/08/13
Mean Anomaly:           28.18999 +/-    28.252
Argument of Peri:       74.43351 +/-    21.871
Long of Asc Node:      178.30149 +/-     1.119
Inclination:            24.94715 +/-     5.417
Eccentricity:         0.68844031 +/-    0.2515
Semi-Major Axis:     72.19544210 +/-   46.7429
Time of Perihelion: 2436415.4109 +/-    4342.2
Perihelion:          22.49318928 +/-   23.2750
Aphelion:           121.89769492 +/-   80.9840
Period (y)              613.4411 +/-    595.76
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           49.93236628 +/-    1.4190
Ecliptic Y            2.39892391 +/-    0.0848
Ecliptic Z           -1.80392896 +/-    0.0522
Ecliptic XDOT         0.00167270 +/-    0.0008
Ecliptic YDOT         0.00200536 +/-    0.0004
Ecliptic ZDOT        -0.00095552 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   50.02249692 +/-    1.4164
Geocenter to KBO     49.19567261 +/-    1.4225
# Hcoef:  6.59

The following table shows the complete astrometric record for 06QC181. 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 (06QC181) followed by the observatory code and reference code for the source of the astrometry.

2006 08  21.22608  00 15 54.12   -00 34 03.0   23.0R 06QC181   807  Cs5502      
2006 08  21.29974  00 15 53.90   -00 34 04.6         06QC181   807  Cs5502      
2006 08  22.20621  00 15 51.20   -00 34 27.3         06QC181   807  Cs5502      
2006 10  19.23187  00 12 22.01   -01 01 14.9   23.5R 06QC181   695  Ct0530      
2006 10  19.32416  00 12 21.71   -01 01 16.6         06QC181   695  Ct0530      
2006 10  20.28926  00 12 18.45   -01 01 42.2         06QC181   695  Ct0530      

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    -0.14
     2   0.0002     -3.66     0.07      -0.16     0.06
     3   0.0027    -49.85     0.00      -4.91     0.06
     4   0.1615  -3568.11    -0.63    -234.83     0.23
     5   0.1618  -3572.92    -0.00    -234.60     0.67
     6   0.1644  -3627.97     0.62    -238.70    -0.89

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.

06QC181    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0