Orbit Fit and Astrometric record for 06QK181

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: 06QK181   
# Created Sat Mar 30 01:12:52 2024
# Orbit generated from Bernstein formalism
# Fitting      6 observations of      6
# Arc:  58.90d
# First observation: 2006/08/22
#  Last observation: 2006/10/20
Preliminary a, adot, b, bdot, g, gdot:
  -0.000002   0.039086  -0.000000  -0.009647   0.029074   0.000000
# WARNING Fitting with energy constraint
# Chi-squared of fit:     8.15 DOF:      7 RMS:  0.21
# Min/Max residuals:    -0.28    0.46
# Exact a, adot, b, bdot, g, gdot:
  1.468072E-05  2.606163E-02 -5.048479E-06 -9.911611E-03  2.702720E-02  1.371146E-02
# Covariance matrix:
  3.4456E-12  4.8816E-09 -2.0775E-13  7.5758E-11  8.1924E-10 -6.4009E-09
  4.8816E-09  8.5036E-06 -3.7058E-10  1.4269E-07  1.4023E-06 -1.7749E-05
 -2.0775E-13 -3.7058E-10  5.1319E-13 -9.5904E-12 -6.0619E-11  9.0968E-10
  7.5758E-11  1.4269E-07 -9.5904E-12  2.7042E-09  2.2935E-08 -4.6287E-07
  8.1924E-10  1.4023E-06 -6.0619E-11  2.2935E-08  2.3257E-07 -2.5624E-06
 -6.4009E-09 -1.7749E-05  9.0968E-10 -4.6287E-07 -2.5624E-06  1.3789E-04
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.144384  -15.520355    0.267183    0.053681   -0.974943  2453969.733914
# Heliocentric elements and errors
Epoch:              2453960.5000  =  2006/08/13
Mean Anomaly:           33.07551 +/-    27.002
Argument of Peri:       84.57049 +/-    16.844
Long of Asc Node:      172.11000 +/-     0.896
Inclination:            20.93943 +/-     2.142
Eccentricity:         0.50091190 +/-    0.4167
Semi-Major Axis:     52.09772508 +/-   26.6423
Time of Perihelion: 2441341.3360 +/-    3525.6
Perihelion:          26.00135464 +/-   25.4559
Aphelion:            78.19409552 +/-   45.4996
Period (y)              376.0420 +/-    288.46
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           36.46337920 +/-    0.6352
Ecliptic Y          -10.40723401 +/-    0.1764
Ecliptic Z            2.02932565 +/-    0.0362
Ecliptic XDOT         0.00210033 +/-    0.0011
Ecliptic YDOT         0.00215303 +/-    0.0005
Ecliptic ZDOT        -0.00092639 +/-    0.0001
# Distances at JD0 (AU)
Heliocenter to KBO   37.97376337 +/-    0.6118
Geocenter to KBO     36.99976428 +/-    0.6602
# Hcoef:  7.28

The following table shows the complete astrometric record for 06QK181. 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 (06QK181) followed by the observatory code and reference code for the source of the astrometry.

2006 08  22.23316  22 57 58.14   -03 12 26.8   22.4R 06QK181   807  Cs5502      
2006 08  23.15943  22 57 53.82   -03 12 57.7         06QK181   807  Cs5502      
2006 08  23.22656  22 57 53.51   -03 13 00.1         06QK181   807  Cs5502      
2006 10  19.13236  22 53 44.62   -03 45 43.9   23.1R 06QK181   695  Ct0530      
2006 10  19.22671  22 53 44.29   -03 45 46.9         06QK181   695  Ct0530      
2006 10  20.13464  22 53 41.46   -03 46 12.5         06QK181   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     0.12       0.00    -0.15
     2   0.0025    -71.60    -0.09      -3.70     0.17
     3   0.0027    -76.81    -0.03      -4.13    -0.00
     4   0.1585  -4271.98     0.19    -389.39    -0.19
     5   0.1588  -4277.70    -0.24    -390.27    -0.28
     6   0.1613  -4326.65     0.05    -397.71     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.

06QK181    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