Orbit Fit and Astrometric record for 06QE181

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: 06QE181   
# Created Mon Dec 18 02:37:27 2017
# Orbit generated from Bernstein formalism
# Fitting   38 observations of   38
# Arc:  10.92y
# First observation: 2006/08/21
#  Last observation: 2017/07/24
Preliminary a, adot, b, bdot, g, gdot:
   0.000131   0.024480   0.000001  -0.000172   0.025152   0.000000
# Chi-squared of fit:    10.78 DOF:   70 RMS:  0.09
# Min/Max residuals:    -0.24    0.21
# Exact a, adot, b, bdot, g, gdot:
  1.520241E-05  2.436658E-02 -4.917161E-07 -1.687539E-04  2.463516E-02  4.515186E-04
# Covariance matrix:
  4.8659E-13 -1.1433E-13 -3.4349E-16  4.0021E-16 -5.6796E-14 -2.6415E-13
 -1.1433E-13  7.5135E-14  4.2756E-16 -4.7254E-16  7.1681E-14  3.0558E-13
 -3.4349E-16  4.2756E-16  4.3690E-13 -5.6787E-14  8.2483E-16  1.8012E-15
  4.0021E-16 -4.7254E-16 -5.6787E-14  8.0876E-15 -5.8884E-16 -2.1200E-15
 -5.6796E-14  7.1681E-14  8.2483E-16 -5.8884E-16  1.5066E-13  2.9701E-13
 -2.6415E-13  3.0558E-13  1.8012E-15 -2.1200E-15  2.9701E-13  1.4045E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
   -2.113946    2.908142    0.576333   -0.030583   -0.831838  2453968.730884
# Heliocentric elements and errors
Epoch:              2453960.5000  =  2006/08/13
Mean Anomaly:           14.49723 +/-     0.114
Argument of Peri:      243.17772 +/-     0.121
Long of Asc Node:      103.70026 +/-     0.006
Inclination:             2.11458 +/-     0.000
Eccentricity:         0.02397835 +/-    0.0000
Semi-Major Axis:     42.40787509 +/-    0.0022
Time of Perihelion: 2449898.3996 +/-      32.1
Perihelion:          41.39100415 +/-    0.0026
Aphelion:            43.42474603 +/-    0.0027
Period (y)              276.1709 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.37005085 +/-    0.0006
Ecliptic Y            1.52178417 +/-    0.0000
Ecliptic Z           -1.49736001 +/-    0.0000
Ecliptic XDOT        -0.00008347 +/-    0.0000
Ecliptic YDOT         0.00270212 +/-    0.0000
Ecliptic ZDOT        -0.00002064 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.42510135 +/-    0.0006
Geocenter to KBO     40.59239563 +/-    0.0006
# Hcoef:  7.68

The following table shows the complete astrometric record for 06QE181. 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 (06QE181) followed by the observatory code and reference code for the source of the astrometry.

2006 08  21.23013  00 14 02.02   -00 47 00.9   22.5R 06QE181   807  Cs5502      
2006 08  21.30370  00 14 01.75   -00 47 02.7         06QE181   807  Cs5502      
2006 08  22.21027  00 13 58.58   -00 47 25.4         06QE181   807  Cs5502      
2013 08  05.48926  00 50 35.477  +03 06 01.87  23.8r 06QE181   568  C~2NIt      
2013 08  05.53771  00 50 35.397  +03 06 01.00  23.9r 06QE181   568  C~2NIt      
2013 08  08.46817  00 50 29.856  +03 05 17.64  24.1r 06QE181   568  C~2NIt      
2013 08  08.50699  00 50 29.779  +03 05 16.95  24.2r 06QE181   568  C~2NIt      
2013 08  31.55306  00 49 24.838  +02 57 30.09  24.2r 06QE181   568  C~2NIt      
2013 09  01.43879  00 49 21.715  +02 57 08.26  23.6r 06QE181   568  C~2NIt      
2013 09  01.47776  00 49 21.567  +02 57 07.46  23.9r 06QE181   568  C~2NIt      
2013 09  05.41829  00 49 07.029  +02 55 28.16  24.0r 06QE181   568  C~2NIt      
2013 09  05.45710  00 49 06.891  +02 55 27.27  23.7r 06QE181   568  C~2NIt      
2013 09  29.34928  00 47 26.073  +02 44 24.22  24.2r 06QE181   568  C~2NIt      
2013 09  29.38812  00 47 25.885  +02 44 23.21  23.1r 06QE181   568  C~2NIt      
2013 09  29.43193  00 47 25.691  +02 44 21.85  23.8r 06QE181   568  C~2NIt      
2013 10  02.42297  00 47 12.165  +02 42 55.54  23.6r 06QE181   568  C~2NIt      
2013 10  04.51453  00 47 02.677  +02 41 55.10  23.1r 06QE181   568  C~2NIt      
2013 10  04.52297  00 47 02.636  +02 41 55.07  22.7r 06QE181   568  C~2NIt      
2013 10  04.52783  00 47 02.621  +02 41 54.78  22.7r 06QE181   568  C~2NIt      
2013 11  27.27517  00 43 37.764  +02 21 38.25  23.7r 06QE181   568  C~2NIt      
2013 11  27.32692  00 43 37.624  +02 21 37.72  23.7r 06QE181   568  C~2NIt      
2013 12  05.33035  00 43 21.315  +02 20 17.83  23.4r 06QE181   568  C~2NIt      
2013 12  06.19916  00 43 19.874  +02 20 11.30  24.0r 06QE181   568  C~2NIt      
2014 06  25.58886  00 55 38.150  +03 40 00.40  24.3r 06QE181   568  C~2NIt      
2014 06  26.58771  00 55 39.966  +03 40 08.44  23.8r 06QE181   568  C~2NIt      
2014 07  23.56365  00 55 56.283  +03 40 20.91  23.9r 06QE181   568  C~2NIt      
2014 07  27.54407  00 55 53.353  +03 39 49.50  23.9r 06QE181   568  C~2NIt      
2014 08  22.61852  00 55 02.590  +03 33 16.45  23.9r 06QE181   568  C~2NIt      
2014 08  28.45428  00 54 44.542  +03 31 09.45  24.0r 06QE181   568  C~2NIt      
2014 10  23.31888  00 50 48.935  +03 05 51.75  24.2r 06QE181   568  C~2NIt      
2014 10  27.28553  00 50 31.941  +03 04 09.32  23.6r 06QE181   568  C~2NIt      
2014 11  24.29111  00 48 52.356  +02 54 37.98  23.7r 06QE181   568  C~2NIt      
2014 11  24.29560  00 48 52.344  +02 54 37.95  23.9r 06QE181   568  C~2NIt      
2014 11  25.28967  00 48 49.691  +02 54 23.89  23.7r 06QE181   568  C~2NIt      
2014 11  25.31747  00 48 49.618  +02 54 23.54  23.8r 06QE181   568  C~2NIt      
2014 12  17.33521  00 48 11.059  +02 51 28.14  23.7r 06QE181   568  C~2NIt      
2015 01  18.23551  00 48 32.213  +02 55 31.12  23.8r 06QE181   568  C~2NIt      
2017 07  24.58173  01 11 08.460  +05 14 55.54  24.1w 06QE181   568  C~2NIt      

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     0.08
  2   0.0002     -4.43    -0.02      -0.04     0.14
  3   0.0027    -57.08    -0.06      -1.98    -0.07
  4   6.9576  36099.15    -0.01    -211.55    -0.01
  5   6.9577  36097.67     0.05    -211.88    -0.24
  6   6.9657  36001.45     0.08    -219.09     0.01
  7   6.9659  36000.07     0.10    -219.28    -0.09
  8   7.0289  34890.20    -0.22    -265.09     0.14
  9   7.0314  34837.13     0.05    -266.71    -0.14
 10   7.0315  34834.71     0.04    -266.57     0.04
 11   7.0423  34588.64    -0.03    -271.91    -0.12
 12   7.0424  34586.32     0.18    -271.91    -0.09
 13   7.1078  32892.68    -0.04    -284.69    -0.07
 14   7.1079  32889.62    -0.14    -284.51     0.09
 15   7.1080  32886.33    -0.08    -284.61    -0.04
 16   7.1162  32660.49    -0.12    -283.81     0.03
 17   7.1219  32502.17    -0.01    -283.14    -0.17
 18   7.1220  32501.57     0.04    -282.92     0.04
 19   7.1220  32501.25     0.09    -283.10    -0.14
 20   7.2691  29126.80     0.08    -185.38     0.04
 21   7.2693  29124.62    -0.07    -185.03     0.21
 22   7.2912  28863.46    -0.06    -161.44    -0.05
 23   7.2935  28840.61    -0.04    -158.86    -0.07
 24   7.8449  41242.73    -0.05    -120.94    -0.02
 25   7.8477  41272.01    -0.00    -124.30    -0.08
 26   7.9215  41510.76     0.07    -210.54     0.07
 27   7.9324  41455.95     0.01    -222.41    -0.06
 28   8.0038  40568.95    -0.07    -286.12     0.15
 29   8.0198  40259.12    -0.03    -296.76    -0.00
 30   8.1727  36285.99    -0.00    -301.71    -0.04
 31   8.1836  36003.26    -0.05    -295.33     0.02
 32   8.2603  34360.67     0.02    -230.67    -0.00
 33   8.2603  34360.48     0.04    -230.63     0.03
 34   8.2630  34317.25     0.08    -227.82     0.02
 35   8.2631  34316.08     0.13    -227.71     0.04
 36   8.3234  33699.78    -0.17    -159.87     0.19
 37   8.4107  34097.32     0.16     -60.43    -0.05
 38  10.9250  57134.70    -0.02    -323.83     0.18

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.

06QE181    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.822    42.829    42.815
ecceobj         0.033     0.033     0.033
incobj          2.115     2.115     2.115
qmin           40.042    40.019    40.003
qmax           45.346    45.325    45.313
amean          42.575    42.582    42.569
amin           42.252    42.256    42.239
amax           42.918    42.922    42.906
emean           0.037     0.037     0.037
emin            0.011     0.012     0.012
emax            0.057     0.057     0.057
imean           1.412     1.410     1.413
imin            0.066     0.063     0.066
imax            2.381     2.390     2.374
excite_mean     0.045     0.045     0.045
fracstop        1.000     1.000     1.000
cjmean          3.082     3.082     3.082

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       182.5     182.0     183.2
kozaiamp        179.9     180.0     180.0