Orbit Fit and Astrometric record for 06QF181

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: 06QF181   
# Created Wed Oct 24 01:08:48 2018
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   50 observations of   50
# Arc:  10.45y
# First observation: 2006/08/21
#  Last observation: 2017/01/31
# Chi-squared of fit:    14.91 DOF:   94 RMS:  0.10
# Min/Max residuals:    -0.35    0.35
# Exact a, adot, b, bdot, g, gdot:
  1.511572E-05  2.096301E-02 -8.062803E-07 -6.743696E-04  2.255404E-02 -1.303720E-03
# Covariance matrix:
  4.8795E-13 -1.2374E-13 -3.1484E-15  2.3931E-15 -6.4688E-14 -3.6296E-13
 -1.2374E-13  6.7430E-14  2.4611E-15 -1.9903E-15  4.0573E-14  3.0765E-13
 -3.1484E-15  2.4611E-15  3.9569E-13 -5.0226E-14  2.4731E-15  1.1922E-14
  2.3931E-15 -1.9903E-15 -5.0226E-14  6.9114E-15 -1.2051E-15 -1.0196E-14
 -6.4688E-14  4.0573E-14  2.4731E-15 -1.2051E-15  1.0716E-13  1.5019E-13
 -3.6296E-13  3.0765E-13  1.1922E-14 -1.0196E-14  1.5019E-13  1.6012E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.937508    3.095230    0.579048   -0.027957   -0.830043  2453968.730884
# Heliocentric elements and errors
Epoch:              2453968.5000  =  2006/08/21
Mean Anomaly:          265.74587 +/-     0.035
Argument of Peri:      328.17275 +/-     0.029
Long of Asc Node:      136.85581 +/-     0.004
Inclination:             2.66557 +/-     0.000
Eccentricity:         0.07416445 +/-    0.0001
Semi-Major Axis:     44.68124249 +/-    0.0022
Time of Perihelion: 2482530.2077 +/-      12.2
Perihelion:          41.36748257 +/-    0.0034
Aphelion:            47.99500240 +/-    0.0036
Period (y)              298.6731 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           45.10548557 +/-    0.0006
Ecliptic Y            1.85647895 +/-    0.0001
Ecliptic Z           -1.49908811 +/-    0.0000
Ecliptic XDOT        -0.00029358 +/-    0.0000
Ecliptic YDOT         0.00252741 +/-    0.0000
Ecliptic ZDOT        -0.00007651 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.16860542 +/-    0.0006
Geocenter to KBO     44.33802847 +/-    0.0006
# Hcoef:  6.97

The following table shows the complete astrometric record for 06QF181. 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 (06QF181) followed by the observatory code and reference code for the source of the astrometry.

2006 08  21.23013  00 14 26.38   -00 32 50.6   22.2R 06QF181   807  Cs5502      
2006 08  21.30370  00 14 26.14   -00 32 52.2         06QF181   807  Cs5502      
2006 08  22.21027  00 14 23.22   -00 33 13.3         06QF181   807  Cs5502      
2013 08  05.50093  00 46 41.028  +02 38 54.02  23.0r 06QF181   568  C~2NIt      
2013 08  05.55416  00 46 40.942  +02 38 53.30  23.2r 06QF181   568  C~2NIt      
2013 08  08.47981  00 46 35.508  +02 38 09.71  23.4r 06QF181   568  C~2NIt      
2013 08  08.51863  00 46 35.441  +02 38 09.01  23.4r 06QF181   568  C~2NIt      
2013 08  31.56492  00 45 33.113  +02 30 32.95  23.8r 06QF181   568  C~2NIt      
2013 09  01.45046  00 45 30.134  +02 30 12.16  23.4r 06QF181   568  C~2NIt      
2013 09  01.48940  00 45 30.008  +02 30 11.53  23.6r 06QF181   568  C~2NIt      
2013 09  01.49828  00 45 29.969  +02 30 11.14  23.4r 06QF181   568  C~2NIt      
2013 09  05.42994  00 45 16.234  +02 28 35.88  23.3r 06QF181   568  C~2NIt      
2013 09  05.46880  00 45 16.097  +02 28 34.86  23.4r 06QF181   568  C~2NIt      
2013 09  29.36094  00 43 41.386  +02 18 02.39  23.2r 06QF181   568  C~25na      
2013 09  29.39977  00 43 41.221  +02 18 01.37  23.4r 06QF181   568  C~25na      
2013 09  29.44359  00 43 41.038  +02 18 00.60  23.6r 06QF181   568  C~2NIt      
2013 09  29.44819  00 43 41.011  +02 18 00.02  23.2r 06QF181   568  C~25na      
2013 09  29.45297  00 43 40.994  +02 17 59.90  23.2r 06QF181   568  C~2NIt      
2013 09  29.45785  00 43 40.971  +02 17 59.81  23.6r 06QF181   568  C~2NIt      
2013 09  29.46414  00 43 40.948  +02 17 59.70  23.6r 06QF181   568  C~2NIt      
2013 09  29.46913  00 43 40.917  +02 17 59.52  23.4r 06QF181   568  C~2NIt      
2013 09  29.50184  00 43 40.779  +02 17 58.65  23.2r 06QF181   568  C~2NIt      
2013 10  05.35958  00 43 16.020  +02 15 18.66  23.4r 06QF181   568  C~2NIt      
2013 10  06.36797  00 43 11.745  +02 14 51.24  23.2r 06QF181   568  C~2NIt      
2013 10  06.43244  00 43 11.466  +02 14 49.47  23.2r 06QF181   568  C~2NIt      
2013 10  07.35479  00 43 07.578  +02 14 24.42  23.3r 06QF181   568  C~2NIt      
2013 10  09.49249  00 42 58.529  +02 13 26.69  23.3r 06QF181   568  C~2NIt      
2013 11  27.29243  00 40 10.060  +01 56 37.33  23.4r 06QF181   568  C~2NIt      
2013 11  27.33867  00 40 09.955  +01 56 36.79  23.6r 06QF181   568  C~2NIt      
2013 12  05.24094  00 39 55.314  +01 55 23.35  23.3r 06QF181   568  C~2NIt      
2014 06  25.60057  00 51 16.468  +03 08 13.64  23.3r 06QF181   568  C~2NIt      
2014 06  26.59942  00 51 18.029  +03 08 19.91  23.5r 06QF181   568  C~2NIt      
2014 07  23.57151  00 51 29.756  +03 07 58.35  23.3r 06QF181   568  C~2NIt      
2014 07  27.55192  00 51 26.524  +03 07 24.45  23.4r 06QF181   568  C~2NIt      
2014 08  24.49767  00 50 31.119  +03 00 10.04  23.4r 06QF181   568  C~2NIt      
2014 08  28.46980  00 50 19.106  +02 58 44.43  23.3r 06QF181   568  C~2NIt      
2014 10  23.32666  00 46 37.936  +02 34 35.80  23.2r 06QF181   568  C~2NIt      
2014 10  27.29329  00 46 22.180  +02 32 59.43  22.9r 06QF181   568  C~2NIt      
2014 11  24.27113  00 44 50.603  +02 24 05.26  23.2r 06QF181   568  C~2NIt      
2014 11  25.29743  00 44 48.094  +02 23 51.89  23.0r 06QF181   568  C~2NIt      
2015 01  17.23338  00 44 33.048  +02 24 47.29  23.3r 06QF181   568  C~2NIt      
2015 08  20.51481  00 55 18.125  +03 28 24.87  23.3r 06QF181   568  C~2NIt      
2015 10  12.27435  00 52 01.376  +03 06 29.14  23.2r 06QF181   568  C~2NIt      
2015 10  12.27943  00 52 01.347  +03 06 29.16  25.1u 06QF181   568  C~2NIt      
2015 10  12.33158  00 52 01.120  +03 06 27.20  24.6u 06QF181   568  C~2NIu      
2015 10  12.42687  00 52 00.726  +03 06 25.00  23.3r 06QF181   568  C~2NIu      
2015 12  07.39898  00 48 57.522  +02 48 35.88  23.5w 06QF181   568  C~2NIu      
2015 12  31.22795  00 48 42.297  +02 48 10.19  23.6w 06QF181   568  C~2NIu      
2017 01  31.21510  00 54 05.201  +03 21 38.59  23.4w 06QF181   568  C~2NIu      
2017 01  31.22265  00 54 05.217  +03 21 38.82  23.6w 06QF181   568  C~2NIu      

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    -0.11       0.00     0.03
  2   0.0002      0.00    -0.08       0.00     0.12
  3   0.0027      0.00     0.15       0.00    -0.03
  4   6.9576      0.00    -0.11       0.00     0.02
  5   6.9578      0.00     0.05       0.00     0.06
  6   6.9658      0.00     0.05       0.00    -0.01
  7   6.9659      0.00     0.22       0.00    -0.11
  8   7.0290      0.00    -0.14       0.00    -0.18
  9   7.0314      0.00    -0.06       0.00    -0.07
 10   7.0315      0.00     0.08       0.00     0.22
 11   7.0315      0.00    -0.04       0.00     0.04
 12   7.0423      0.00    -0.02       0.00    -0.03
 13   7.0424      0.00     0.06       0.00    -0.09
 14   7.1078      0.00    -0.01       0.00    -0.12
 15   7.1079      0.00     0.01       0.00    -0.08
 16   7.1080      0.00     0.09       0.00     0.35
 17   7.1081      0.00    -0.02       0.00    -0.10
 18   7.1081      0.00     0.03       0.00    -0.09
 19   7.1081      0.00    -0.00       0.00    -0.05
 20   7.1081      0.00     0.06       0.00     0.01
 21   7.1081      0.00    -0.09       0.00    -0.03
 22   7.1082      0.00    -0.05       0.00    -0.00
 23   7.1242      0.00    -0.00       0.00     0.05
 24   7.1270      0.00    -0.04       0.00     0.03
 25   7.1272      0.00    -0.06       0.00     0.01
 26   7.1297      0.00     0.11       0.00    -0.05
 27   7.1356      0.00     0.06       0.00    -0.15
 28   7.2692      0.00     0.05       0.00     0.01
 29   7.2693      0.00     0.02       0.00    -0.00
 30   7.2909      0.00     0.12       0.00    -0.01
 31   7.8450      0.00    -0.03       0.00     0.02
 32   7.8477      0.00     0.02       0.00    -0.04
 33   7.9215      0.00     0.21       0.00    -0.03
 34   7.9324      0.00    -0.01       0.00     0.03
 35   8.0089      0.00     0.02       0.00    -0.01
 36   8.0198      0.00    -0.05       0.00     0.02
 37   8.1727      0.00    -0.03       0.00     0.03
 38   8.1836      0.00    -0.19       0.00     0.08
 39   8.2602      0.00     0.03       0.00    -0.03
 40   8.2630      0.00    -0.05       0.00     0.09
 41   8.4079      0.00     0.00       0.00    -0.04
 42   8.9974      0.00    -0.00       0.00     0.01
 43   9.1418      0.00    -0.04       0.00     0.06
 44   9.1418      0.00    -0.14       0.00     0.22
 45   9.1420      0.00    -0.18       0.00    -0.35
 46   9.1422      0.00     0.10       0.00    -0.00
 47   9.2955      0.00    -0.07       0.00     0.04
 48   9.3607      0.00     0.02       0.00     0.06
 49  10.4476      0.00     0.13       0.00     0.06
 50  10.4476      0.00     0.05       0.00     0.13

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.

06QF181    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.139    45.139    45.139
ecceobj         0.076     0.076     0.076
incobj          2.661     2.661     2.661
qmin           40.424    40.425    40.433
qmax           49.574    49.556    49.582
amean          44.876    44.876    44.876
amin           44.516    44.508    44.512
amax           45.256    45.262    45.268
emean           0.080     0.080     0.080
emin            0.066     0.066     0.066
emax            0.095     0.095     0.096
imean           1.920     1.920     1.920
imin            1.374     1.373     1.374
imax            2.484     2.485     2.484
excite_mean     0.087     0.087     0.087
fracstop        1.000     1.000     1.000
cjmean          3.103     3.103     3.103

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       182.0     182.0     182.0
kozaiamp        180.0     180.0     180.0