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 Sun Oct 22 01:37:39 2017
# Orbit generated from Bernstein formalism
# Fitting   48 observations of   48
# Arc:   9.36y
# First observation: 2006/08/21
#  Last observation: 2015/12/31
Preliminary a, adot, b, bdot, g, gdot:
  -0.000119   0.021358   0.000005  -0.000688   0.022984   0.000000
# Chi-squared of fit:    15.52 DOF:   90 RMS:  0.10
# Min/Max residuals:    -0.30    0.31
# Exact a, adot, b, bdot, g, gdot:
  1.512517E-05  2.096312E-02 -9.029705E-07 -6.743794E-04  2.255415E-02 -1.302923E-03
# Covariance matrix:
  4.8840E-13 -1.2663E-13 -2.3726E-15  2.3532E-15 -6.8255E-14 -3.8028E-13
 -1.2663E-13  8.6810E-14  2.5800E-15 -2.6106E-15  6.4453E-14  4.2412E-13
 -2.3726E-15  2.5800E-15  4.2172E-13 -5.4570E-14  2.3078E-15  1.3681E-14
  2.3532E-15 -2.6106E-15 -5.4570E-14  7.6552E-15 -1.9173E-15 -1.4098E-14
 -6.8255E-14  6.4453E-14  2.3078E-15 -1.9173E-15  1.3659E-13  2.9369E-13
 -3.8028E-13  4.2412E-13  1.3681E-14 -1.4098E-14  2.9369E-13  2.3012E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.937508    3.095230    0.579048   -0.027957   -0.830043  2453968.730884
# Heliocentric elements and errors
Epoch:              2453960.5000  =  2006/08/13
Mean Anomaly:          265.70666 +/-     0.039
Argument of Peri:      328.18098 +/-     0.032
Long of Asc Node:      136.85600 +/-     0.004
Inclination:             2.66558 +/-     0.000
Eccentricity:         0.07412793 +/-    0.0001
Semi-Major Axis:     44.68066410 +/-    0.0024
Time of Perihelion: 2482533.5348 +/-      11.4
Perihelion:          41.36857916 +/-    0.0039
Aphelion:            47.99274904 +/-    0.0041
Period (y)              298.6673 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           45.10526857 +/-    0.0007
Ecliptic Y            1.85646763 +/-    0.0001
Ecliptic Z           -1.49908505 +/-    0.0000
Ecliptic XDOT        -0.00029348 +/-    0.0000
Ecliptic YDOT         0.00252742 +/-    0.0000
Ecliptic ZDOT        -0.00007651 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.16834047 +/-    0.0007
Geocenter to KBO     44.33774480 +/-    0.0007
# Hcoef:  7.03

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 41.029  +02 38 53.99  23.1r 06QF181   568  C~25na      
2013 08  05.55416  00 46 40.941  +02 38 53.28  23.2r 06QF181   568  C~25na      
2013 08  08.47981  00 46 35.508  +02 38 09.70  23.4r 06QF181   568  C~25na      
2013 08  08.51863  00 46 35.441  +02 38 09.00  23.5r 06QF181   568  C~25na      
2013 08  31.56492  00 45 33.115  +02 30 32.93  23.9r 06QF181   568  C~25na      
2013 09  01.45046  00 45 30.135  +02 30 12.14  23.5r 06QF181   568  C~25na      
2013 09  01.48940  00 45 30.008  +02 30 11.48  23.7r 06QF181   568  C~25na      
2013 09  01.49828  00 45 29.970  +02 30 11.11  23.4r 06QF181   568  C~25na      
2013 09  05.42994  00 45 16.233  +02 28 35.82  23.3r 06QF181   568  C~25na      
2013 09  05.46880  00 45 16.097  +02 28 34.80  23.4r 06QF181   568  C~25na      
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 41.036  +02 18 00.51  23.7r 06QF181   568  C~25na      
2013 09  29.44819  00 43 41.011  +02 18 00.02  23.2r 06QF181   568  C~25na      
2013 09  29.45297  00 43 40.995  +02 17 59.81  23.3r 06QF181   568  C~25na      
2013 09  29.45785  00 43 40.969  +02 17 59.71  23.6r 06QF181   568  C~25na      
2013 09  29.46414  00 43 40.946  +02 17 59.62  23.7r 06QF181   568  C~25na      
2013 09  29.46913  00 43 40.915  +02 17 59.44  23.4r 06QF181   568  C~25na      
2013 09  29.50184  00 43 40.777  +02 17 58.55  23.3r 06QF181   568  C~25na      
2013 10  05.35958  00 43 16.020  +02 15 18.58  23.5r 06QF181   568  C~25na      
2013 10  06.36797  00 43 11.745  +02 14 51.18  23.2r 06QF181   568  C~25na      
2013 10  06.43244  00 43 11.466  +02 14 49.41  23.2r 06QF181   568  C~25na      
2013 10  07.35479  00 43 07.578  +02 14 24.36  23.4r 06QF181   568  C~25na      
2013 10  09.49249  00 42 58.530  +02 13 26.63  23.4r 06QF181   568  C~25na      
2013 11  27.29243  00 40 10.062  +01 56 37.30  23.5r 06QF181   568  C~25na      
2013 11  27.33867  00 40 09.957  +01 56 36.76  23.6r 06QF181   568  C~25na      
2013 12  05.24094  00 39 55.317  +01 55 23.33  23.4r 06QF181   568  C~25na      
2014 06  25.60057  00 51 16.467  +03 08 13.57  23.4r 06QF181   568  C~25na      
2014 06  26.59942  00 51 18.028  +03 08 19.84  23.5r 06QF181   568  C~25na      
2014 07  23.57151  00 51 29.754  +03 07 58.29  23.3r 06QF181   568  C~25na      
2014 07  27.55192  00 51 26.523  +03 07 24.38  23.5r 06QF181   568  C~25na      
2014 08  24.49767  00 50 31.116  +03 00 10.12  23.4r 06QF181   568  C~25na      
2014 08  28.46980  00 50 19.103  +02 58 44.50  23.4r 06QF181   568  C~25na      
2014 10  23.32666  00 46 37.936  +02 34 35.79  23.3r 06QF181   568  C~25na      
2014 10  27.29329  00 46 22.181  +02 32 59.44  22.9r 06QF181   568  C~25na      
2014 11  24.27113  00 44 50.603  +02 24 05.19  23.2r 06QF181   568  C~25na      
2014 11  25.29743  00 44 48.095  +02 23 51.82  23.1r 06QF181   568  C~25na      
2015 01  17.23338  00 44 33.046  +02 24 47.23  23.3r 06QF181   568  C~25na      
2015 08  20.51481  00 55 18.126  +03 28 24.91  23.4r 06QF181   568  C~25na      
2015 10  12.27435  00 52 01.372  +03 06 29.13  23.2r 06QF181   568  C~25na      
2015 10  12.27943  00 52 01.342  +03 06 29.15  25.2u 06QF181   568  C~25na      
2015 10  12.33158  00 52 01.115  +03 06 27.22  24.7u 06QF181   568  C~25na      
2015 10  12.42687  00 52 00.722  +03 06 25.00  23.4r 06QF181   568  C~25na      
2015 12  07.39898  00 48 57.524  +02 48 35.87  23.5w 06QF181   568  C~25na      
2015 12  31.22795  00 48 42.295  +02 48 10.17  23.7w 06QF181   568  C~25na      

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    -0.09       0.00     0.09
  2   0.0002     -3.94    -0.02      -0.04     0.16
  3   0.0027    -52.51     0.12      -2.01    -0.07
  4   6.9576  31434.87    -0.09    -952.97     0.06
  5   6.9578  31433.34     0.06    -953.10     0.05
  6   6.9658  31339.21     0.04    -961.05    -0.01
  7   6.9659  31337.99     0.17    -961.30    -0.17
  8   7.0290  30276.68    -0.17   -1011.59    -0.11
  9   7.0314  30226.39    -0.07   -1013.05    -0.04
 10   7.0315  30224.34     0.16   -1012.90     0.16
 11   7.0315  30223.65    -0.01   -1013.01     0.05
 12   7.0423  29992.06    -0.06   -1019.20    -0.04
 13   7.0424  29989.74     0.00   -1019.33    -0.14
 14   7.1078  28404.77    -0.05   -1038.81    -0.08
 15   7.1079  28402.05    -0.01   -1038.77    -0.05
 16   7.1080  28399.10     0.16   -1038.46     0.25
 17   7.1081  28398.56    -0.06   -1038.77    -0.06
 18   7.1081  28398.25    -0.02   -1038.87    -0.16
 19   7.1081  28397.84    -0.08   -1038.80    -0.10
 20   7.1081  28397.48     0.01   -1038.75    -0.04
 21   7.1081  28396.98    -0.14   -1038.73    -0.03
 22   7.1082  28394.68    -0.11   -1038.73    -0.03
 23   7.1242  27983.05    -0.00   -1038.78     0.00
 24   7.1270  27912.09    -0.04   -1038.58     0.02
 25   7.1272  27907.46    -0.06   -1038.55     0.00
 26   7.1297  27842.87     0.06   -1038.49    -0.12
 27   7.1356  27692.81    -0.01   -1037.81    -0.20
 28   7.2692  24929.86     0.08    -963.89    -0.02
 29   7.2693  24928.18     0.04    -963.76    -0.02
 30   7.2909  24694.22     0.15    -944.08    -0.07
 31   7.8450  36040.89    -0.03    -965.13    -0.00
 32   7.8477  36065.58    -0.00    -968.64    -0.07
 33   7.9215  36223.26     0.17   -1059.05    -0.12
 34   7.9324  36163.65    -0.00   -1071.31     0.00
 35   8.0089  35201.84     0.04   -1144.11     0.10
 36   8.0198  34996.94    -0.01   -1151.89     0.15
 37   8.1727  31287.07     0.01   -1174.35     0.06
 38   8.1836  31026.30    -0.09   -1169.46     0.18
 39   8.2602  29522.73     0.03   -1116.84    -0.07
 40   8.2630  29482.11     0.01   -1114.22     0.06
 41   8.4079  29293.02    -0.03    -972.70    -0.06
 42   8.9974  39973.92     0.11   -1282.51     0.07
 43   9.1418  36636.07     0.00   -1331.88     0.12
 44   9.1418  36635.65    -0.05   -1331.69     0.31
 45   9.1420  36631.64    -0.30   -1332.12    -0.18
 46   9.1422  36625.16     0.11   -1331.84     0.01
 47   9.2955  33596.17     0.04   -1229.70     0.07
 48   9.3607  33370.55     0.08   -1162.34     0.07

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        45.140    45.147    45.133
ecceobj         0.076     0.076     0.076
incobj          2.661     2.661     2.661
qmin           40.427    40.427    40.453
qmax           49.553    49.582    49.585
amean          44.877    44.884    44.870
amin           44.519    44.533    44.508
amax           45.260    45.260    45.258
emean           0.080     0.080     0.080
emin            0.066     0.066     0.066
emax            0.095     0.095     0.096
imean           1.920     1.919     1.920
imin            1.372     1.373     1.373
imax            2.485     2.482     2.488
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       182.1     181.7     182.3
kozaiamp        180.0     180.0     180.0