Orbit Fit and Astrometric record for 06QZ180

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: 06QZ180   
# Created Thu Dec  9 02:10:25 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     10 observations of     10
# Arc:  12.07y
# First observation: 2006/08/21
#  Last observation: 2018/09/14
# Chi-squared of fit:     2.89 DOF:     14 RMS:  0.09
# Min/Max residuals:    -0.24    0.16
# Exact a, adot, b, bdot, g, gdot:
  1.376971E-05  1.941593E-02 -5.293481E-06 -8.325243E-03  2.247675E-02  7.459235E-04
# Covariance matrix:
  4.8350E-13 -7.0160E-14 -8.5178E-15  1.3235E-14  9.1073E-14 -1.5018E-13
 -7.0160E-14  3.6065E-13  8.1725E-14 -1.1814E-13  1.4108E-12  1.3531E-12
 -8.5178E-15  8.1725E-14  4.6856E-13 -7.5886E-14  3.0803E-13  3.1989E-13
  1.3235E-14 -1.1814E-13 -7.5886E-14  4.8117E-14 -4.4024E-13 -4.6426E-13
  9.1073E-14  1.4108E-12  3.0803E-13 -4.4024E-13  6.6228E-12  5.0499E-12
 -1.5018E-13  1.3531E-12  3.1989E-13 -4.6426E-13  5.0499E-12  5.3146E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    6.889648  -16.158728    0.273343    0.117060   -0.967801  2453968.697794
# Heliocentric elements and errors
Epoch:              2453968.5000  =  2006/08/21
Mean Anomaly:           61.70477 +/-     0.420
Argument of Peri:       97.80129 +/-     0.466
Long of Asc Node:      178.80632 +/-     0.000
Inclination:            24.11036 +/-     0.000
Eccentricity:         0.03678157 +/-    0.0001
Semi-Major Axis:     46.21330038 +/-    0.0186
Time of Perihelion: 2434300.2775 +/-     134.5
Perihelion:          44.51350248 +/-    0.0183
Aphelion:            47.91309828 +/-    0.0196
Period (y)              314.1656 +/-      0.19
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           43.28167717 +/-    0.0049
Ecliptic Y          -12.82903089 +/-    0.0014
Ecliptic Z            5.33671599 +/-    0.0006
Ecliptic XDOT         0.00086619 +/-    0.0000
Ecliptic YDOT         0.00220772 +/-    0.0000
Ecliptic ZDOT        -0.00099590 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.45730058 +/-    0.0046
Geocenter to KBO     44.49042269 +/-    0.0051
# Hcoef:  7.38

The following table shows the complete astrometric record for 06QZ180. 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 (06QZ180) followed by the observatory code and reference code for the source of the astrometry.

2006 08  21.19704  22 49 52.77   +00 00 32.4   23.0R 06QZ180   807  Cs5502      
2006 08  21.28388  22 49 52.41   +00 00 30.2         06QZ180   807  Cs5502      
2006 08  22.18982  22 49 48.84   +00 00 05.8         06QZ180   807  Cs5502      
2013 09  30.11286  23 20 59.210  -00 25 54.92  24.8i 06QZ180   W84  C~52RU      
2013 10  12.09348  23 20 15.677  -00 32 00.33  23.6i 06QZ180   W84  C~52RU      
2013 10  28.05086  23 19 27.567  -00 39 19.84  23.6r 06QZ180   W84  C~52RU      
2015 11  01.05690  23 28 49.290  -00 42 34.25  24.0r 06QZ180   W84  C~52RU      
2016 09  30.09304  23 35 18.463  -00 28 45.80  23.5r 06QZ180   W84  C~52RU      
2016 10  05.14994  23 34 59.011  -00 31 21.95  24.1r 06QZ180   W84  C~52RU      
2018 09  14.30118  23 45 55.572  -00 22 01.13  23.9r 06QZ180   W84  C~52RU      

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     0.02       0.00    -0.12
     2   0.0002      0.00    -0.13       0.00     0.02
     3   0.0027      0.00     0.12       0.00     0.16
     4   7.1100      0.00    -0.04       0.00     0.07
     5   7.1428      0.00    -0.01       0.00    -0.24
     6   7.1865      0.00     0.03       0.00    -0.05
     7   9.1961      0.00     0.08       0.00     0.07
     8  10.1106      0.00     0.04       0.00    -0.02
     9  10.1244      0.00    -0.09       0.00     0.09
    10  12.0660      0.00     0.01       0.00     0.03

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.

06QZ180    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.462    46.462    46.462
ecceobj         0.036     0.036     0.036
incobj         24.007    24.007    24.007
qmin           44.132    44.132    44.132
qmax           48.648    48.650    48.644
amean          46.313    46.313    46.313
amin           45.959    45.961    45.958
amax           46.677    46.678    46.677
emean           0.033     0.033     0.033
emin            0.024     0.024     0.024
emax            0.043     0.043     0.043
imean          23.746    23.746    23.746
imin           23.517    23.517    23.517
imax           23.959    23.961    23.962
excite_mean     0.404     0.404     0.404
fracstop        1.000     1.000     1.000
cjmean          2.919     2.919     2.919

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       180.7     180.6     180.8
kozaiamp        179.9     179.9     179.9