Orbit Fit and Astrometric record for 03QX111

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: 03QX111   
# Created Tue Feb 18 02:09:06 2020
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   94 observations of   94
# Arc:  14.10y
# First observation: 2003/08/25
#  Last observation: 2017/09/29
# Chi-squared of fit:   206.42 DOF:  182 RMS:  0.26
# Min/Max residuals:    -0.77    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.531775E-05  2.553804E-02 -3.528239E-06 -4.055012E-03  2.605514E-02  3.769290E-03
# Covariance matrix:
  1.2245E-13 -1.7007E-14 -3.0948E-15  1.5731E-15  3.1213E-14 -2.7590E-14
 -1.7007E-14  9.6649E-15  2.6464E-15 -1.4617E-15  1.3257E-14  2.5489E-14
 -3.0948E-15  2.6464E-15  8.5545E-14 -7.8197E-15  3.5777E-15  7.6016E-15
  1.5731E-15 -1.4617E-15 -7.8197E-15  1.0324E-15 -2.2042E-15 -4.1990E-15
  3.1213E-14  1.3257E-14  3.5777E-15 -2.2042E-15  9.6063E-14  3.8170E-14
 -2.7590E-14  2.5489E-14  7.6016E-15 -4.1990E-15  3.8170E-14  7.3221E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -3.071006   -3.702377    0.425365   -0.049321   -0.920403  2452876.779843
# Heliocentric elements and errors
Epoch:              2452876.5000  =  2003/08/25
Mean Anomaly:           83.93303 +/-     0.020
Argument of Peri:       99.29519 +/-     0.014
Long of Asc Node:      157.54106 +/-     0.000
Inclination:             9.55211 +/-     0.000
Eccentricity:         0.13217617 +/-    0.0000
Semi-Major Axis:     39.16386861 +/-    0.0017
Time of Perihelion: 2432004.8297 +/-       5.2
Perihelion:          33.98733858 +/-    0.0015
Aphelion:            44.34039864 +/-    0.0020
Period (y)              245.0962 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           39.13458945 +/-    0.0005
Ecliptic Y           -2.95457925 +/-    0.0000
Ecliptic Z           -2.05631271 +/-    0.0000
Ecliptic XDOT         0.00053993 +/-    0.0000
Ecliptic YDOT         0.00264812 +/-    0.0000
Ecliptic ZDOT        -0.00044653 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   39.29971714 +/-    0.0005
Geocenter to KBO     38.38009674 +/-    0.0005
# Hcoef:  6.96

The following table shows the complete astrometric record for 03QX111. 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 (03QX111) followed by the observatory code and reference code for the source of the astrometry.

2003 08  25.27910  23 51 17.94   -04 17 23.4   21.5R 03QX111   807  Ci4592      
2003 08  25.38190  23 51 17.51   -04 17 26.4         03QX111   807  Ci4592      
2003 09  03.12975  23 50 39.90   -04 22 09.0   21.8R 03QX111   304  Ci4592      
2003 09  03.20133  23 50 39.58   -04 22 11.1         03QX111   304  Ci4592      
2003 10  01.43108  23 48 28.39   -04 37 35.3         03QX111   568  Ci6969      
2003 10  01.45900  23 48 28.22   -04 37 36.4         03QX111   568  Ci6969      
2003 10  02.45350  23 48 23.66   -04 38 06.6         03QX111   568  Ci6969      
2003 10  02.49893  23 48 23.44   -04 38 08.4         03QX111   568  Ci6969      
2003 10  22.15921  23 46 59.64   -04 47 17.2   22.3R 03QX111   695  Cj4700      
2003 10  22.25323  23 46 59.29   -04 47 19.6         03QX111   695  Cj4700      
2004 08  13.31483  23 57 43.29   -03 49 44.5   21.5R 03QX111   807  Cl8405      
2004 08  13.38706  23 57 43.04   -03 49 46.6         03QX111   807  Cl8405      
2004 10  11.22454  23 53 25.38   -04 20 45.1   22.5R 03QX111   695  Cl8405      
2004 10  11.31501  23 53 24.97   -04 20 48.0         03QX111   695  Cl8405      
2007 10  11.30400  00 10 25.70   -03 14 12.1   22.9R 03QX111   688  Cw0394      
2007 10  11.36328  00 10 25.44   -03 14 14.3         03QX111   688  Cw0394      
2008 10  30.265780 00 14 38.45   -03 00 42.7   22.8V 03QX111   645  C~2Jx8      
2008 10  30.266609 00 14 38.46   -03 00 42.7   21.4V 03QX111   645  C~2Jx8      
2008 10  30.269097 00 14 38.45   -03 00 42.7   23.3V 03QX111   645  C~2Jx8      
2010 09  08.45374  00 29 31.431  -01 50 37.36  23.2G 03QX111   F51  C~343j      
2010 10  09.19942  00 27 12.39   -02 07 02.0   23.0R 03QX111   688  C~0Nhh      
2010 10  09.26098  00 27 12.11   -02 07 03.3         03QX111   688  C~0Nhh      
2011 09  26.42531  00 33 40.979  -01 38 13.62  22.6G 03QX111   F51  C~343j      
2011 09  26.43933  00 33 40.931  -01 38 14.10  22.8G 03QX111   F51  C~343j      
2011 09  26.45964  00 33 40.832  -01 38 14.59  23.1G 03QX111   F51  C~343j      
2011 09  26.47409  00 33 40.774  -01 38 15.09  22.6G 03QX111   F51  C~343j      
2011 10  16.43967  00 32 09.290  -01 48 28.94  22.4G 03QX111   F51  C~343j      
2012 10  05.36792  00 38 22.397  -01 21 29.33  22.1G 03QX111   F51  C~343j      
2012 10  05.37928  00 38 22.324  -01 21 29.36  21.8G 03QX111   F51  C~343j      
2012 10  05.46325  00 38 21.954  -01 21 31.35  22.7G 03QX111   F51  C~343j      
2012 10  15.35532  00 37 36.728  -01 26 27.85  23.5G 03QX111   F51  C~343j      
2012 10  15.36985  00 37 36.638  -01 26 28.59  22.3G 03QX111   F51  C~343j      
2012 10  15.38446  00 37 36.612  -01 26 28.52  22.4G 03QX111   F51  C~343j      
2012 11  05.28343  00 36 09.873  -01 35 13.84  23.1G 03QX111   F51  C~343j      
2012 11  05.29857  00 36 09.819  -01 35 14.23  23.5G 03QX111   F51  C~343j      
2012 11  05.31365  00 36 09.761  -01 35 14.52  23.4G 03QX111   F51  C~343j      
2012 11  05.32875  00 36 09.700  -01 35 14.72  23.1G 03QX111   F51  C~343j      
2013 01  10.22870  00 34 54.891  -01 37 20.79  22.7G 03QX111   F51  C~343j      
2013 01  10.24450  00 34 54.907  -01 37 20.26  21.6G 03QX111   F51  C~343j      
2013 09  09.45658  00 45 42.007  -00 45 52.90  22.0G 03QX111   F51  C~343j      
2013 10  27.32609  00 42 09.076  -01 10 02.08  22.0G 03QX111   F51  C~343j      
2013 10  27.34160  00 42 08.988  -01 10 02.51  23.5G 03QX111   F51  C~343j      
2014 01  24.22277  00 40 41.171  -01 11 28.52  23.3G 03QX111   F51  C~343j      
2014 07  31.55201  00 52 54.374  -00 07 07.65  23.6G 03QX111   F51  C~343j      
2014 07  31.57595  00 52 54.328  -00 07 07.87  23.1G 03QX111   F51  C~343j      
2014 07  31.58796  00 52 54.338  -00 07 08.07  22.4G 03QX111   F51  C~343j      
2014 08  20.56948  00 52 12.082  -00 14 37.19  23.3G 03QX111   F51  C~343j      
2014 08  27.54396  00 51 50.582  -00 17 48.79  23.4G 03QX111   F51  C~343j      
2014 08  27.55755  00 51 50.482  -00 17 49.10  23.3G 03QX111   F51  C~343j      
2014 08  27.57117  00 51 50.443  -00 17 49.06  23.2G 03QX111   F51  C~343j      
2014 09  13.53283  00 50 46.557  -00 26 21.77  22.8G 03QX111   F51  C~343j      
2014 09  18.43742  00 50 25.726  -00 28 57.25  23.1G 03QX111   F51  C~343j      
2014 09  18.44959  00 50 25.667  -00 28 57.95  23.0G 03QX111   F51  C~343j      
2014 09  18.46177  00 50 25.663  -00 28 57.82  23.6G 03QX111   F51  C~343j      
2014 09  18.47402  00 50 25.537  -00 28 58.27  22.7G 03QX111   F51  C~343j      
2014 09  20.47426  00 50 16.877  -00 30 02.46  23.3G 03QX111   F51  C~343j      
2014 09  20.48622  00 50 16.820  -00 30 02.89  22.8G 03QX111   F51  C~343j      
2014 09  20.49780  00 50 16.751  -00 30 03.34  23.2G 03QX111   F51  C~343j      
2014 09  20.50931  00 50 16.713  -00 30 03.22  23.0G 03QX111   F51  C~343j      
2014 09  20.52080  00 50 16.651  -00 30 03.75  22.9G 03QX111   F51  C~343j      
2014 09  22.42271  00 50 08.289  -00 31 04.58  23.3G 03QX111   F51  C~343j      
2014 09  22.43468  00 50 08.256  -00 31 04.74  23.1G 03QX111   F51  C~343j      
2014 09  22.44665  00 50 08.186  -00 31 05.47  22.8G 03QX111   F51  C~343j      
2014 09  22.45866  00 50 08.114  -00 31 05.85  22.7G 03QX111   F51  C~343j      
2014 11  21.26893  00 45 59.890  -00 56 38.07  23.7G 03QX111   F51  C~343j      
2014 11  21.28177  00 45 59.846  -00 56 38.48  23.2G 03QX111   F51  C~343j      
2015 08  09.59924  00 57 54.503  +00 11 02.98  22.9G 03QX111   F51  C~343j      
2015 10  22.32998  00 53 12.042  -00 24 40.37  23.2G 03QX111   F51  C~343j      
2015 12  01.26706  00 50 50.761  -00 37 10.79  23.6G 03QX111   F51  C~343j      
2015 12  14.25255  00 50 28.377  -00 38 09.09  23.1G 03QX111   F51  C~343j      
2015 12  31.25693  00 50 21.917  -00 36 48.62  22.8G 03QX111   F51  C~343j      
2016 08  26.62961  01 02 23.012  +00 24 46.56  22.7G 03QX111   F51  C~343j      
2016 08  27.58347  01 02 20.065  +00 24 19.56  23.7G 03QX111   F51  C~343j      
2016 11  01.39577  00 57 41.815  -00 08 00.06  21.2G 03QX111   F51  C~343j      
2017 07  30.59960  01 08 29.894  +00 55 45.04  23.6G 03QX111   F51  C~343j      
2017 09  17.47521  01 06 17.072  +00 35 08.05  23.6G 03QX111   F51  C~343j      
2017 09  17.48726  01 06 17.026  +00 35 07.52  22.9G 03QX111   F51  C~343j      
2017 09  17.49935  01 06 16.978  +00 35 06.99  23.4G 03QX111   F51  C~343j      
2017 09  17.51148  01 06 16.928  +00 35 07.24  22.7G 03QX111   F51  C~343j      
2017 09  24.41520  01 05 47.462  +00 31 30.73  23.3G 03QX111   F51  C~343j      
2017 09  24.42792  01 05 47.416  +00 31 30.53  22.8G 03QX111   F51  C~343j      
2017 09  24.44055  01 05 47.328  +00 31 29.52  23.0G 03QX111   F51  C~343j      
2017 09  24.45323  01 05 47.287  +00 31 29.67  23.3G 03QX111   F51  C~343j      
2017 09  25.47588  01 05 42.803  +00 30 57.60  22.5G 03QX111   F51  C~343j      
2017 09  25.48878  01 05 42.745  +00 30 57.17  22.6G 03QX111   F51  C~343j      
2017 09  25.50161  01 05 42.684  +00 30 56.44  23.1G 03QX111   F51  C~343j      
2017 09  25.51447  01 05 42.629  +00 30 56.49  23.0G 03QX111   F51  C~343j      
2017 09  26.43689  01 05 38.552  +00 30 27.45  23.8G 03QX111   F51  C~343j      
2017 09  26.44924  01 05 38.515  +00 30 27.05  22.7G 03QX111   F51  C~343j      
2017 09  26.46170  01 05 38.473  +00 30 26.68  22.7G 03QX111   F51  C~343j      
2017 09  26.47424  01 05 38.401  +00 30 26.01  23.1G 03QX111   F51  C~343j      
2017 09  29.51466  01 05 24.809  +00 28 51.15  22.5G 03QX111   F51  C~343j      
2017 09  29.53793  01 05 24.711  +00 28 50.18  23.1G 03QX111   F51  C~343j      
2017 09  29.54954  01 05 24.669  +00 28 49.97  22.9G 03QX111   F51  C~343j      

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    -0.05       0.00     0.22
  2   0.0003      0.00    -0.01       0.00     0.45
  3   0.0242      0.00     0.52       0.00    -0.22
  4   0.0244      0.00     0.59       0.00     0.03
  5   0.1017      0.00     0.13       0.00    -0.13
  6   0.1018      0.00    -0.45       0.00    -0.36
  7   0.1045      0.00    -0.31       0.00     0.28
  8   0.1046      0.00    -0.43       0.00    -0.12
  9   0.1585      0.00    -0.04       0.00     0.05
 10   0.1587      0.00     0.24       0.00    -0.07
 11   0.9693      0.00    -0.15       0.00    -0.01
 12   0.9695      0.00    -0.08       0.00    -0.07
 13   1.1306      0.00     0.27       0.00     0.60
 14   1.1308      0.00     0.13       0.00     0.28
 15   4.1287      0.00    -0.58       0.00    -0.10
 16   4.1289      0.00    -0.43       0.00    -0.56
 17   5.1827      0.00     0.20       0.00    -0.42
 18   5.1827      0.00     0.39       0.00    -0.40
 19   5.1827      0.00     0.38       0.00    -0.35
 20   7.0395      0.00     0.01       0.00    -0.04
 21   7.1237      0.00    -0.29       0.00    -0.05
 22   7.1238      0.00    -0.20       0.00     0.51
 23   8.0880      0.00    -0.17       0.00    -0.05
 24   8.0880      0.00     0.10       0.00    -0.08
 25   8.0881      0.00     0.04       0.00     0.09
 26   8.0881      0.00     0.18       0.00     0.06
 27   8.1428      0.00     0.08       0.00    -0.01
 28   9.1145      0.00     0.16       0.00    -0.64
 29   9.1146      0.00    -0.14       0.00    -0.32
 30   9.1148      0.00     0.23       0.00     0.29
 31   9.1419      0.00    -0.41       0.00     0.34
 32   9.1419      0.00    -0.77       0.00     0.01
 33   9.1420      0.00    -0.15       0.00     0.50
 34   9.1992      0.00     0.03       0.00     0.04
 35   9.1992      0.00     0.08       0.00    -0.04
 36   9.1993      0.00     0.07       0.00    -0.01
 37   9.1993      0.00     0.01       0.00     0.10
 38   9.3797      0.00    -0.11       0.00    -0.11
 39   9.3798      0.00    -0.28       0.00     0.14
 40  10.0429      0.00     0.53       0.00    -0.75
 41  10.1740      0.00     0.14       0.00     0.15
 42  10.1740      0.00    -0.18       0.00     0.11
 43  10.4174      0.00     0.04       0.00    -0.26
 44  10.9330      0.00     0.12       0.00    -0.26
 45  10.9331      0.00    -0.07       0.00    -0.05
 46  10.9331      0.00     0.33       0.00    -0.03
 47  10.9878      0.00     0.02       0.00     0.02
 48  11.0069      0.00     0.67       0.00    -0.48
 49  11.0069      0.00    -0.14       0.00    -0.41
 50  11.0070      0.00    -0.03       0.00     0.02
 51  11.0534      0.00     0.05       0.00    -0.09
 52  11.0668      0.00    -0.28       0.00     0.15
 53  11.0669      0.00    -0.36       0.00    -0.16
 54  11.0669      0.00     0.38       0.00     0.35
 55  11.0669      0.00    -0.70       0.00     0.29
 56  11.0724      0.00     0.15       0.00     0.01
 57  11.0724      0.00     0.09       0.00    -0.04
 58  11.0725      0.00    -0.16       0.00    -0.12
 59  11.0725      0.00     0.04       0.00     0.37
 60  11.0725      0.00    -0.12       0.00     0.21
 61  11.0777      0.00     0.22       0.00     0.23
 62  11.0778      0.00     0.53       0.00     0.45
 63  11.0778      0.00     0.29       0.00     0.10
 64  11.0778      0.00     0.03       0.00     0.11
 65  11.2416      0.00     0.11       0.00     0.21
 66  11.2416      0.00     0.02       0.00    -0.03
 67  11.9571      0.00     0.24       0.00     0.08
 68  12.1589      0.00     0.10       0.00     0.12
 69  12.2683      0.00     0.08       0.00     0.03
 70  12.3038      0.00     0.21       0.00     0.11
 71  12.3504      0.00     0.06       0.00     0.20
 72  13.0058      0.00    -0.69       0.00     0.55
 73  13.0084      0.00    -0.16       0.00    -0.15
 74  13.1885      0.00     0.11       0.00     0.02
 75  13.9311      0.00    -0.00       0.00    -0.03
 76  14.0649      0.00    -0.14       0.00     0.01
 77  14.0649      0.00    -0.07       0.00    -0.15
 78  14.0649      0.00    -0.02       0.00    -0.30
 79  14.0650      0.00    -0.00       0.00     0.33
 80  14.0839      0.00     0.01       0.00    -0.14
 81  14.0839      0.00     0.17       0.00     0.06
 82  14.0839      0.00    -0.31       0.00    -0.55
 83  14.0840      0.00    -0.07       0.00    -0.00
 84  14.0868      0.00     0.04       0.00     0.03
 85  14.0868      0.00     0.04       0.00     0.01
 86  14.0869      0.00    -0.01       0.00    -0.32
 87  14.0869      0.00     0.03       0.00     0.13
 88  14.0894      0.00    -0.13       0.00     0.05
 89  14.0894      0.00     0.15       0.00     0.04
 90  14.0895      0.00     0.37       0.00     0.06
 91  14.0895      0.00     0.14       0.00    -0.22
 92  14.0978      0.00    -0.24       0.00     0.19
 93  14.0979      0.00    -0.12       0.00    -0.05
 94  14.0979      0.00     0.05       0.00     0.10

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.

03QX111    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.533    39.533    39.533
ecceobj         0.132     0.132     0.132
incobj          9.513     9.513     9.513
qmin           32.951    32.951    32.951
qmax           46.512    46.513    46.509
amean          39.457    39.457    39.457
amin           39.057    39.054    39.038
amax           39.921    39.922    39.920
emean           0.142     0.142     0.142
emin            0.122     0.122     0.122
emax            0.165     0.165     0.165
imean           8.961     8.960     8.963
imin            8.148     8.148     8.149
imax            9.840     9.840     9.837
excite_mean     0.211     0.211     0.211
fracstop        1.000     1.000     1.000
cjmean          3.002     3.002     3.002

libcent 0       180.4     180.3     180.5
libamp  0        79.0      79.0      79.0
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       181.4     181.3     181.4
kozaiamp        180.0     180.0     180.0