Orbit Fit and Astrometric record for 03QX113

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: 03QX113   
# Created Sat Dec  7 02:08:27 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   96 observations of   96
# Arc:  14.33y
# First observation: 2003/06/23
#  Last observation: 2017/10/23
# Chi-squared of fit:   113.25 DOF:  186 RMS:  0.19
# Min/Max residuals:    -0.57    0.55
# Exact a, adot, b, bdot, g, gdot:
  8.743030E-06  1.259111E-02 -1.324750E-06 -1.472794E-03  1.730976E-02  2.561085E-03
# Covariance matrix:
  1.4815E-13 -2.7653E-14 -6.3147E-15  2.5974E-15  2.2806E-14 -1.1954E-13
 -2.7653E-14  1.1406E-14  3.0981E-15 -1.3185E-15  9.5331E-15  6.1070E-14
 -6.3147E-15  3.0981E-15  8.2808E-14 -7.8372E-15  2.2133E-15  1.7943E-14
  2.5974E-15 -1.3185E-15 -7.8372E-15  1.0036E-15 -1.0758E-15 -7.6273E-15
  2.2806E-14  9.5331E-15  2.2133E-15 -1.0758E-15  6.9533E-14  5.0963E-14
 -1.1954E-13  6.1070E-14  1.7943E-14 -7.6273E-15  5.0963E-14  3.5320E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
    1.281277  -31.872174    0.849084    0.012654   -0.565867  2452814.102673
# Heliocentric elements and errors
Epoch:              2452814.5000  =  2003/06/24
Mean Anomaly:          124.76700 +/-     0.014
Argument of Peri:       24.44940 +/-     0.009
Long of Asc Node:      158.04889 +/-     0.000
Inclination:             6.76988 +/-     0.000
Eccentricity:         0.25589452 +/-    0.0000
Semi-Major Axis:     49.38514422 +/-    0.0022
Time of Perihelion: 2408881.5732 +/-       5.6
Perihelion:          36.74775656 +/-    0.0022
Aphelion:            62.02253189 +/-    0.0032
Period (y)              347.0585 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           49.07852664 +/-    0.0007
Ecliptic Y          -31.51244010 +/-    0.0005
Ecliptic Z            1.29174835 +/-    0.0000
Ecliptic XDOT         0.00139415 +/-    0.0000
Ecliptic YDOT         0.00146936 +/-    0.0000
Ecliptic ZDOT        -0.00022365 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   58.33857846 +/-    0.0007
Geocenter to KBO     57.77077829 +/-    0.0009
# Hcoef:  5.02

The following table shows the complete astrometric record for 03QX113. 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 (03QX113) followed by the observatory code and reference code for the source of the astrometry.

2003 06  23.60193  21 59 23.03   -10 55 18.4   23.0i 03QX113   568  Cq9889      
2003 08  31.32283  21 56 02.87   -11 13 37.5   22.8g 03QX113   568  Cq9889      
2003 08  31.35679  21 56 02.76   -11 13 38.2   22.7g 03QX113   568  Cq9889      
2003 08  31.38376  21 56 02.67   -11 13 38.6   22.8g 03QX113   568  Cq9889      
2003 09  04.43946  21 55 49.14   -11 14 55.7   22.5g 03QX113   568  Cq9889      
2004 08  12.39090  21 59 58.24   -10 57 40.3   22.6r 03QX113   568  Cq9889      
2004 08  12.42109  21 59 58.13   -10 57 40.9   22.7r 03QX113   568  Cq9889      
2004 08  12.45562  21 59 58.02   -10 57 41.5   22.3r 03QX113   568  Cq9889      
2004 08  14.41455  21 59 51.36   -10 58 18.9   22.5r 03QX113   568  Cq9889      
2005 07  08.57826  22 04 34.49   -10 37 49.1   21.3r 03QX113   568  Cq9889      
2005 07  08.61262  22 04 34.41   -10 37 49.6   21.3r 03QX113   568  Cq9889      
2005 07  09.53101  22 04 32.21   -10 38 01.5   21.2r 03QX113   568  Cq9889      
2006 08  06.30738  22 06 04.04   -10 35 08.6         03QX113   250  S~06Ad      
2006 08  06.36140  22 06 03.86   -10 35 09.6         03QX113   250  S~06Ad      
2006 08  06.36579  22 06 03.84   -10 35 09.7         03QX113   250  S~06Ad      
2006 08  06.37019  22 06 03.83   -10 35 09.8         03QX113   250  S~06Ad      
2006 09  24.12177  22 03 25.90   -10 50 27.0   22.4R 03QX113   688  Cs0973      
2006 09  24.21723  22 03 25.61   -10 50 29.2         03QX113   688  Cs0973      
2007 09  11.34789  22 06 56.11   -10 36 17.7   22.1r 03QX113   695  Cv8576      
2007 09  12.34858  22 06 52.92   -10 36 36.5   22.3r 03QX113   695  Cv8576      
2008 05  03.47882  22 13 27.43   -10 04 39.0         03QX113   695  Cz0403      
2008 05  05.47647  22 13 30.66   -10 04 21.0         03QX113   695  Cz0403      
2008 05  05.48001  22 13 30.64   -10 04 21.0         03QX113   695  Cz0403      
2010 05  14.55139  22 19 12.560  -09 42 37.44  22.9G 03QX113   F51  C~343j      
2010 06  19.59460  22 19 11.703  -09 42 46.34  21.9G 03QX113   F51  C~343j      
2010 08  18.52653  22 16 43.354  -09 57 16.00  21.6G 03QX113   F51  C~343j      
2010 09  04.30418  22 15 47.431  -10 02 47.51  22.6G 03QX113   F51  C~343j      
2010 09  04.31562  22 15 47.390  -10 02 47.60  22.8G 03QX113   F51  C~343j      
2010 11  09.19790  22 13 23.369  -10 17 48.93  22.2G 03QX113   F51  C~343j      
2011 06  15.60164  22 22 01.468  -09 31 51.19  22.1G 03QX113   F51  C~343j      
2011 07  28.48500  22 20 37.775  -09 40 07.16  22.9G 03QX113   F51  C~343j      
2011 07  28.49921  22 20 37.734  -09 40 07.24  22.9G 03QX113   F51  C~343j      
2011 07  28.51341  22 20 37.686  -09 40 07.78  22.8G 03QX113   F51  C~343j      
2011 07  28.52769  22 20 37.647  -09 40 07.69  22.5G 03QX113   F51  C~343j      
2011 08  31.37284  22 18 49.238  -09 50 51.97  22.6G 03QX113   F51  C~343j      
2011 08  31.40809  22 18 49.139  -09 50 52.85  22.6G 03QX113   F51  C~343j      
2011 08  31.42298  22 18 49.089  -09 50 53.03  22.6G 03QX113   F51  C~343j      
2011 08  31.43790  22 18 49.043  -09 50 53.28  22.2G 03QX113   F51  C~343j      
2011 08  31.45279  22 18 48.987  -09 50 53.62  22.4G 03QX113   F51  C~343j      
2011 09  06.46793  22 18 29.128  -09 52 52.23  23.0G 03QX113   F51  C~343j      
2011 09  06.47850  22 18 29.079  -09 52 52.48  22.2G 03QX113   F51  C~343j      
2011 09  15.31311  22 18 00.851  -09 55 42.27  22.7G 03QX113   F51  C~343j      
2012 08  08.50644  22 22 48.620  -09 33 02.73  22.3G 03QX113   F51  C~343j      
2012 08  10.51733  22 22 42.261  -09 33 41.09  22.5G 03QX113   F51  C~343j      
2013 08  26.47647  22 24 36.454  -09 28 13.91  22.7G 03QX113   F51  C~343j      
2013 09  27.33406  22 22 56.116  -09 38 24.05  22.9G 03QX113   F51  C~343j      
2014 06  26.58058  22 30 00.189  -09 01 28.25  22.8G 03QX113   F51  C~343j      
2014 06  28.51156  22 29 57.512  -09 01 45.41  23.1G 03QX113   F51  C~343j      
2014 07  06.56835  22 29 44.082  -09 03 07.78  23.4G 03QX113   F51  C~343j      
2014 07  08.52227  22 29 40.373  -09 03 30.65  23.5G 03QX113   F51  C~343j      
2014 07  25.52446  22 29 00.518  -09 07 33.81  22.5G 03QX113   F51  C~343j      
2014 07  25.53657  22 29 00.472  -09 07 33.81  23.0G 03QX113   F51  C~343j      
2014 07  25.54869  22 29 00.461  -09 07 34.15  22.7G 03QX113   F51  C~343j      
2014 07  25.56080  22 29 00.420  -09 07 34.13  22.7G 03QX113   F51  C~343j      
2014 08  20.42500  22 27 41.867  -09 15 31.17  22.6G 03QX113   F51  C~343j      
2014 08  20.43784  22 27 41.831  -09 15 31.42  22.3G 03QX113   F51  C~343j      
2014 08  20.43850  22 27 41.807  -09 15 31.36  22.2G 03QX113   F51  C~343j      
2014 08  20.45069  22 27 41.791  -09 15 31.72  22.6G 03QX113   F51  C~343j      
2014 08  20.45134  22 27 41.792  -09 15 31.43  22.9G 03QX113   F51  C~343j      
2014 08  20.46357  22 27 41.740  -09 15 32.16  23.4G 03QX113   F51  C~343j      
2014 08  20.46423  22 27 41.748  -09 15 32.11  22.4G 03QX113   F51  C~343j      
2014 08  21.40231  22 27 38.655  -09 15 50.52  22.3G 03QX113   F51  C~343j      
2014 09  02.39064  22 26 59.049  -09 19 51.46  22.9G 03QX113   F51  C~343j      
2014 09  12.41922  22 26 26.429  -09 23 10.00  22.6G 03QX113   F51  C~343j      
2014 09  18.28999  22 26 08.044  -09 25 02.78  22.4G 03QX113   F51  C~343j      
2014 09  18.30156  22 26 07.997  -09 25 03.00  22.6G 03QX113   F51  C~343j      
2014 09  18.35983  22 26 07.832  -09 25 04.15  22.5G 03QX113   F51  C~343j      
2014 09  18.37153  22 26 07.785  -09 25 04.22  22.3G 03QX113   F51  C~343j      
2014 11  10.20666  22 24 21.474  -09 36 19.69  23.0G 03QX113   F51  C~343j      
2014 11  10.23122  22 24 21.454  -09 36 19.69  23.0G 03QX113   F51  C~343j      
2015 05  18.58926  22 32 47.087  -08 50 01.81  22.4G 03QX113   F51  C~343j      
2015 09  09.36606  22 29 20.884  -09 11 28.20  22.6G 03QX113   F51  C~343j      
2015 09  09.37722  22 29 20.857  -09 11 28.44  22.5G 03QX113   F51  C~343j      
2015 09  09.38840  22 29 20.809  -09 11 28.58  22.9G 03QX113   F51  C~343j      
2015 09  09.39952  22 29 20.789  -09 11 28.82  21.4G 03QX113   F51  C~343j      
2015 11  04.29551  22 27 08.849  -09 25 15.36  23.7G 03QX113   F51  C~343j      
2016 07  07.54551  22 35 05.258  -08 42 09.63  22.9G 03QX113   F51  C~343k      
2016 08  03.50454  22 33 59.486  -08 48 57.84  22.7G 03QX113   F51  C~343k      
2016 08  03.51557  22 33 59.469  -08 48 58.39  21.4G 03QX113   F51  C~343k      
2016 08  03.52662  22 33 59.424  -08 48 58.51  23.4G 03QX113   F51  C~343k      
2016 08  03.53768  22 33 59.393  -08 48 58.83  22.5G 03QX113   F51  C~343k      
2017 07  05.56689  22 37 50.115  -08 31 03.94  22.9G 03QX113   F51  C~343k      
2017 07  05.57794  22 37 50.090  -08 31 03.52  23.0G 03QX113   F51  C~343k      
2017 07  05.58900  22 37 50.085  -08 31 03.87  22.8G 03QX113   F51  C~343k      
2017 07  05.60007  22 37 50.060  -08 31 03.88  22.8G 03QX113   F51  C~343k      
2017 07  25.55423  22 37 06.682  -08 35 37.64  22.6G 03QX113   F51  C~343k      
2017 08  01.48092  22 36 47.899  -08 37 34.51  22.8G 03QX113   F51  C~343k      
2017 08  01.49226  22 36 47.858  -08 37 34.83  22.3G 03QX113   F51  C~343k      
2017 08  01.51493  22 36 47.772  -08 37 35.15  22.6G 03QX113   F51  C~343k      
2017 09  21.36842  22 34 07.135  -08 54 10.25  22.7G 03QX113   F51  C~343k      
2017 09  21.37941  22 34 07.099  -08 54 10.23  22.8G 03QX113   F51  C~343k      
2017 09  21.39040  22 34 07.094  -08 54 10.49  22.8G 03QX113   F51  C~343k      
2017 09  21.40139  22 34 07.071  -08 54 10.70  22.7G 03QX113   F51  C~343k      
2017 10  23.28106  22 32 48.537  -09 02 23.45  21.8G 03QX113   F51  C~343k      
2017 10  23.30555  22 32 48.479  -09 02 23.77  22.3G 03QX113   F51  C~343k      
2017 10  23.34202  22 32 48.422  -09 02 23.91  23.7G 03QX113   F51  C~343k      

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     0.55       0.00     0.19
  2   0.1881      0.00     0.06       0.00    -0.10
  3   0.1882      0.00     0.15       0.00    -0.15
  4   0.1883      0.00     0.18       0.00    -0.03
  5   0.1994      0.00    -0.13       0.00    -0.13
  6   1.1384      0.00    -0.12       0.00     0.09
  7   1.1385      0.00    -0.22       0.00     0.06
  8   1.1385      0.00    -0.09       0.00     0.12
  9   1.1439      0.00    -0.45       0.00     0.01
 10   2.0424      0.00     0.14       0.00    -0.20
 11   2.0425      0.00     0.19       0.00    -0.26
 12   2.0450      0.00    -0.08       0.00    -0.13
 13   3.1203      0.00     0.13       0.00     0.48
 14   3.1205      0.00     0.05       0.00     0.48
 15   3.1205      0.00    -0.03       0.00     0.46
 16   3.1205      0.00     0.03       0.00     0.44
 17   3.2540      0.00     0.12       0.00     0.23
 18   3.2543      0.00    -0.17       0.00    -0.37
 19   4.2183      0.00     0.22       0.00     0.25
 20   4.2211      0.00    -0.08       0.00     0.17
 21   4.8621      0.00    -0.19       0.00     0.13
 22   4.8676      0.00     0.03       0.00    -0.03
 23   4.8676      0.00    -0.35       0.00    -0.06
 24   6.8910      0.00     0.12       0.00    -0.33
 25   6.9897      0.00    -0.04       0.00    -0.30
 26   7.1538      0.00     0.23       0.00    -0.12
 27   7.1997      0.00    -0.18       0.00    -0.15
 28   7.1998      0.00    -0.22       0.00    -0.01
 29   7.3801      0.00    -0.02       0.00    -0.35
 30   7.9781      0.00    -0.57       0.00    -0.09
 31   8.0955      0.00     0.18       0.00    -0.10
 32   8.0955      0.00     0.19       0.00     0.06
 33   8.0956      0.00     0.09       0.00    -0.24
 34   8.0956      0.00     0.13       0.00     0.10
 35   8.1883      0.00    -0.20       0.00    -0.17
 36   8.1884      0.00     0.10       0.00    -0.34
 37   8.1884      0.00     0.11       0.00    -0.23
 38   8.1885      0.00     0.18       0.00    -0.18
 39   8.1885      0.00     0.09       0.00    -0.23
 40   8.2050      0.00     0.10       0.00     0.07
 41   8.2050      0.00    -0.11       0.00     0.02
 42   8.2292      0.00     0.38       0.00     0.35
 43   9.1277      0.00     0.04       0.00     0.15
 44   9.1332      0.00     0.12       0.00    -0.17
 45  10.1762      0.00     0.07       0.00    -0.12
 46  10.2635      0.00     0.00       0.00     0.11
 47  11.0088      0.00     0.02       0.00    -0.04
 48  11.0141      0.00     0.23       0.00    -0.44
 49  11.0362      0.00    -0.23       0.00    -0.16
 50  11.0415      0.00     0.31       0.00    -0.04
 51  11.0881      0.00     0.10       0.00    -0.13
 52  11.0881      0.00    -0.09       0.00     0.07
 53  11.0882      0.00     0.25       0.00    -0.08
 54  11.0882      0.00     0.13       0.00     0.14
 55  11.1590      0.00    -0.05       0.00    -0.03
 56  11.1590      0.00     0.05       0.00    -0.03
 57  11.1590      0.00    -0.28       0.00     0.05
 58  11.1591      0.00     0.09       0.00    -0.07
 59  11.1591      0.00     0.14       0.00     0.23
 60  11.1591      0.00    -0.03       0.00    -0.25
 61  11.1591      0.00     0.13       0.00    -0.19
 62  11.1617      0.00    -0.18       0.00     0.08
 63  11.1945      0.00     0.11       0.00    -0.06
 64  11.2220      0.00    -0.04       0.00     0.20
 65  11.2380      0.00    -0.07       0.00    -0.07
 66  11.2381      0.00    -0.23       0.00    -0.07
 67  11.2382      0.00     0.03       0.00    -0.12
 68  11.2382      0.00    -0.13       0.00     0.03
 69  11.3829      0.00     0.07       0.00    -0.09
 70  11.3830      0.00     0.01       0.00     0.02
 71  11.9014      0.00    -0.20       0.00    -0.03
 72  12.2129      0.00    -0.04       0.00     0.07
 73  12.2129      0.00     0.11       0.00     0.06
 74  12.2130      0.00    -0.06       0.00     0.14
 75  12.2130      0.00     0.19       0.00     0.12
 76  12.3660      0.00    -0.20       0.00     0.54
 77  13.0402      0.00    -0.02       0.00     0.02
 78  13.1140      0.00     0.07       0.00     0.28
 79  13.1141      0.00     0.31       0.00    -0.07
 80  13.1141      0.00     0.13       0.00     0.01
 81  13.1141      0.00     0.16       0.00    -0.11
 82  14.0341      0.00    -0.01       0.00    -0.19
 83  14.0342      0.00    -0.09       0.00     0.35
 84  14.0342      0.00     0.13       0.00     0.12
 85  14.0342      0.00     0.05       0.00     0.23
 86  14.0888      0.00    -0.15       0.00    -0.23
 87  14.1078      0.00     0.13       0.00     0.14
 88  14.1078      0.00     0.01       0.00     0.02
 89  14.1079      0.00    -0.30       0.00     0.10
 90  14.2471      0.00    -0.46       0.00    -0.12
 91  14.2472      0.00    -0.49       0.00     0.10
 92  14.2472      0.00    -0.06       0.00     0.05
 93  14.2472      0.00     0.11       0.00     0.04
 94  14.3345      0.00     0.22       0.00    -0.00
 95  14.3346      0.00     0.02       0.00    -0.05
 96  14.3347      0.00     0.15       0.00     0.22

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.

03QX113    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        49.703    49.703    49.703
ecceobj         0.248     0.248     0.248
incobj          6.733     6.733     6.733
qmin           36.413    36.475    36.409
qmax           63.550    63.444    63.460
amean          49.653    49.645    49.655
amin           49.173    49.180    49.190
amax           50.235    50.225    50.225
emean           0.251     0.250     0.251
emin            0.238     0.238     0.238
emax            0.265     0.264     0.265
imean           5.877     5.875     5.874
imin            5.273     5.268     5.268
imax            6.630     6.630     6.633
excite_mean     0.271     0.271     0.271
fracstop        1.000     1.000     1.000
cjmean          3.079     3.079     3.079

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       176.8     176.6     177.0
kozaiamp        180.0     179.9     179.9