Orbit Fit and Astrometric record for 03QZ111

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: 03QZ111   
# Created Sun Dec  5 02:09:40 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     79 observations of     79
# Arc:  18.05y
# First observation: 2003/08/26
#  Last observation: 2021/09/12
# Chi-squared of fit:    92.22 DOF:    152 RMS:  0.19
# Min/Max residuals:    -0.54    1.00
# Exact a, adot, b, bdot, g, gdot:
  1.438157E-05  2.583811E-02  1.667512E-07  1.154051E-03  2.538483E-02  8.138146E-05
# Covariance matrix:
  1.7505E-13 -2.9154E-14  2.3396E-15 -8.7251E-16 -1.2693E-14 -4.3309E-14
 -2.9154E-14  9.7654E-15 -1.0015E-15  3.8571E-16  1.7398E-14  1.8967E-14
  2.3396E-15 -1.0015E-15  1.2487E-13 -9.9123E-15 -1.4878E-15 -2.1836E-15
 -8.7251E-16  3.8571E-16 -9.9123E-15  9.2901E-16  6.5979E-16  8.3408E-16
 -1.2693E-14  1.7398E-14 -1.4878E-15  6.5979E-16  1.1090E-13  3.1210E-14
 -4.3309E-14  1.8967E-14 -2.1836E-15  8.3408E-16  3.1210E-14  4.1111E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.737535  -18.041461    0.167380    0.012942   -1.000921  2452877.758933
# Heliocentric elements and errors
Epoch:              2452878.5000  =  2003/08/27
Mean Anomaly:          358.03185 +/-     0.007
Argument of Peri:       17.84633 +/-     0.008
Long of Asc Node:      326.10702 +/-     0.001
Inclination:             2.66991 +/-     0.000
Eccentricity:         0.05681220 +/-    0.0000
Semi-Major Axis:     42.82226546 +/-    0.0023
Time of Perihelion: 2453438.0761 +/-       8.3
Perihelion:          40.38943854 +/-    0.0027
Aphelion:            45.25509237 +/-    0.0029
Period (y)              280.2287 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           38.35092131 +/-    0.0005
Ecliptic Y          -12.66440395 +/-    0.0002
Ecliptic Z            0.50706624 +/-    0.0000
Ecliptic XDOT         0.00086465 +/-    0.0000
Ecliptic YDOT         0.00264177 +/-    0.0000
Ecliptic ZDOT         0.00012474 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   40.39105736 +/-    0.0005
Geocenter to KBO     39.39363756 +/-    0.0005
# Hcoef:  7.08

The following table shows the complete astrometric record for 03QZ111. 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 (03QZ111) followed by the observatory code and reference code for the source of the astrometry.

2003 08  26.25819  22 52 18.91   -06 23 40.2   22.0R 03QZ111   807  Ci4592      
2003 08  26.35950  22 52 18.45   -06 23 43.2         03QZ111   807  Ci4592      
2003 09  03.09334  22 51 42.64   -06 27 15.9         03QZ111   304  Ci4592      
2003 09  03.16964  22 51 42.27   -06 27 19.0         03QZ111   304  Ci4592      
2003 09  21.81764  22 50 16.90   -06 35 50.5   21.8R 03QZ111   246  C~05DA      
2003 09  21.82341  22 50 16.87   -06 35 51.2         03QZ111   246  C~05DA      
2003 10  22.12939  22 48 24.25   -06 47 18.5   22.8R 03QZ111   695  Cj4700      
2003 10  22.21395  22 48 23.99   -06 47 19.6         03QZ111   695  Cj4700      
2004 07  16.33911  23 00 14.15   -05 31 22.4   22.2R 03QZ111   807  Cl4360      
2004 07  16.39057  23 00 14.01   -05 31 23.5         03QZ111   807  Cl4360      
2004 08  23.14583  22 57 52.90   -05 45 06.9   22.9R 03QZ111   304  Cl4360      
2004 08  23.28212  22 57 52.26   -05 45 10.7         03QZ111   304  Cl4360      
2009 08  20.37971  23 24 54.28   -02 33 49.7   23.2R 03QZ111   688  C~08Tg      
2009 08  20.42478  23 24 54.08   -02 33 51.5         03QZ111   688  C~08Tg      
2009 09  16.339346 23 22 53.55   -02 46 17.1   23.3V 03QZ111   645  C~2Jx8      
2009 09  16.340176 23 22 53.55   -02 46 17.1   21.7V 03QZ111   645  C~2Jx8      
2009 09  16.342663 23 22 53.55   -02 46 17.1   23.8V 03QZ111   645  C~2Jx8      
2013 09  02.24739  23 45 19.672  -00 05 51.20  24.1g 03QZ111   W84  C~4yD2      
2013 09  11.26990  23 44 39.227  -00 10 03.84  24.0g 03QZ111   W84  C~4yD2      
2013 09  30.126042 23 43 13.02   -00 19 13.0   23.0r 03QZ111   W84  C~351P      
2013 09  30.126551 23 43 13.00   -00 19 12.7   22.8r 03QZ111   W84  C~1n06      
2013 09  30.12657  23 43 13.016  -00 19 12.96  22.7r 03QZ111   W84  C~4yD2      
2013 09  30.136563 23 43 12.96   -00 19 13.3   22.7i 03QZ111   W84  C~351P      
2013 09  30.137083 23 43 12.96   -00 19 13.0   22.8i 03QZ111   W84  C~1n06      
2013 09  30.13709  23 43 12.967  -00 19 13.28  22.5i 03QZ111   W84  C~4yD2      
2013 10  12.107083 23 42 21.09   -00 24 50.5   22.9i 03QZ111   W84  C~351P      
2013 10  12.10762  23 42 21.093  -00 24 50.46  23.0i 03QZ111   W84  C~4yD2      
2013 10  12.108472 23 42 21.09   -00 24 50.5   22.4z 03QZ111   W84  C~351P      
2013 10  12.10900  23 42 21.092  -00 24 50.48  22.6z 03QZ111   W84  C~4yD2      
2013 10  13.078113 23 42 17.09   -00 25 16.5   22.7i 03QZ111   W84  C~351P      
2013 10  13.078634 23 42 17.09   -00 25 16.4   22.9i 03QZ111   W84  C~1n06      
2013 10  28.047454 23 41 21.23   -00 31 27.9   23.3r 03QZ111   W84  C~351P      
2013 10  28.047975 23 41 21.23   -00 31 27.6   23.5r 03QZ111   W84  C~1n06      
2013 10  28.04798  23 41 21.232  -00 31 27.90  22.9r 03QZ111   W84  C~4yD2      
2013 10  28.048831 23 41 21.22   -00 31 28.0   22.8i 03QZ111   W84  C~351P      
2013 10  28.049352 23 41 21.21   -00 31 27.7   22.9i 03QZ111   W84  C~1n06      
2013 10  28.04936  23 41 21.222  -00 31 27.99  23.0i 03QZ111   W84  C~4yD2      
2013 11  08.137350 23 40 48.57   -00 35 10.8   23.4r 03QZ111   W84  C~351P      
2013 11  08.137859 23 40 48.58   -00 35 10.7   23.8r 03QZ111   W84  C~1n06      
2013 11  08.13787  23 40 48.581  -00 35 10.98  23.3r 03QZ111   W84  C~4yD2      
2014 10  02.25420  23 48 23.415  +00 18 13.68  23.5r 03QZ111   W84  C~4yD2      
2014 10  14.21584  23 47 31.754  +00 12 36.68  22.5z 03QZ111   W84  C~4yD2      
2015 11  07.04520  23 51 25.012  +00 41 20.37  23.4i 03QZ111   W84  C~4yD2      
2015 11  07.046053 23 51 25.01   +00 41 20.6   23.4r 03QZ111   W84  C~351P      
2015 11  07.04658  23 51 25.006  +00 41 20.63  23.2r 03QZ111   W84  C~4yD2      
2015 11  07.04795  23 51 24.983  +00 41 20.54  24.5g 03QZ111   W84  C~4yD2      
2016 08  31.251968 00 01 21.75   +01 49 36.9   23.2r 03QZ111   W84  C~351P      
2016 08  31.25249  00 01 21.747  +01 49 36.82  22.9r 03QZ111   W84  C~4yD2      
2016 08  31.253345 00 01 21.75   +01 49 36.8   23.2i 03QZ111   W84  C~351P      
2016 08  31.25387  00 01 21.746  +01 49 36.71  22.6i 03QZ111   W84  C~4yD2      
2016 10  02.164572 23 58 58.17   +01 34 31.3   22.9r 03QZ111   W84  C~351P      
2016 10  02.16510  23 58 58.170  +01 34 31.25  22.8r 03QZ111   W84  C~4yD2      
2016 10  02.165961 23 58 58.17   +01 34 31.3   23.8g 03QZ111   W84  C~351P      
2016 10  02.16649  23 58 58.175  +01 34 31.26  24.0g 03QZ111   W84  C~4yD2      
2016 10  06.068484 23 58 40.62   +01 32 37.6   22.7i 03QZ111   W84  C~351P      
2016 10  06.06901  23 58 40.624  +01 32 37.56  23.1i 03QZ111   W84  C~4yD2      
2016 10  06.069861 23 58 40.61   +01 32 37.5   22.3z 03QZ111   W84  C~351P      
2016 10  06.07038  23 58 40.611  +01 32 37.42  22.6z 03QZ111   W84  C~4yD2      
2017 08  18.298993 00 07 30.04   +02 32 42.0   23.3r 03QZ111   W84  C~351P      
2017 08  18.29952  00 07 30.037  +02 32 41.91  23.3r 03QZ111   W84  C~4yD2      
2017 08  18.300370 00 07 30.03   +02 32 41.9   23.1i 03QZ111   W84  C~351P      
2017 08  18.30090  00 07 30.033  +02 32 41.87  23.1i 03QZ111   W84  C~4yD2      
2017 08  18.301748 00 07 30.02   +02 32 41.8   24.3g 03QZ111   W84  C~351P      
2017 08  18.30227  00 07 30.026  +02 32 41.59  23.8g 03QZ111   W84  C~4yD2      
2017 09  27.183634 00 04 40.24   +02 15 13.0   21.4i 03QZ111   W84  C~351P      
2017 09  27.185012 00 04 40.25   +02 15 13.0   21.3r 03QZ111   W84  C~351P      
2017 10  27.15752  00 02 32.091  +02 01 12.53  23.1z 03QZ111   W84  C~4yD2      
2017 10  29.15084  00 02 24.821  +02 00 23.42  22.6z 03QZ111   W84  C~4yD2      
2017 10  29.154456 00 02 24.81   +02 00 23.4   23.4i 03QZ111   W84  C~351P      
2017 10  29.15498  00 02 24.803  +02 00 23.38  23.2i 03QZ111   W84  C~4yD2      
2017 11  08.072280 00 01 52.18   +01 56 39.8   23.8r 03QZ111   W84  C~351P      
2017 11  08.07280  00 01 52.177  +01 56 39.82  23.6r 03QZ111   W84  C~4yD2      
2018 10  18.15858  00 08 26.225  +02 43 15.39  22.6z 03QZ111   W84  C~4yD2      
2018 10  28.17245  00 07 46.381  +02 38 49.48  22.8i 03QZ111   W84  C~4yD2      
2018 11  07.14231  00 07 11.931  +02 34 54.15  23.4r 03QZ111   W84  C~4yD2      
2018 11  08.14027  00 07 08.822  +02 34 33.09  23.9g 03QZ111   W84  C~4yD2      
2021 09  12.324010 00 27 03.530  +04 53 38.64  23.2G 03QZ111   G37  C~553l      
2021 09  12.384110 00 27 03.267  +04 53 37.04        03QZ111   G37  C~553l      
2021 09  12.444540 00 27 03.001  +04 53 35.48        03QZ111   G37  C~553l      

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     0.29       0.00     0.24
     2   0.0003      0.00     0.46       0.00    -0.01
     3   0.0215      0.00     0.15       0.00     0.63
     4   0.0217      0.00     0.01       0.00    -0.35
     5   0.0727      0.00    -0.48       0.00     1.00
     6   0.0727      0.00    -0.54       0.00     0.45
     7   0.1557      0.00     0.05       0.00    -0.28
     8   0.1559      0.00    -0.19       0.00     0.09
     9   0.8900      0.00    -0.01       0.00    -0.11
    10   0.8902      0.00    -0.00       0.00    -0.44
    11   0.9935      0.00     0.08       0.00    -0.01
    12   0.9939      0.00    -0.15       0.00    -0.14
    13   5.9853      0.00     0.05       0.00     0.35
    14   5.9854      0.00    -0.09       0.00    -0.31
    15   6.0591      0.00     0.02       0.00    -0.54
    16   6.0591      0.00     0.08       0.00    -0.52
    17   6.0591      0.00     0.25       0.00    -0.45
    18  10.0205      0.00     0.11       0.00     0.16
    19  10.0452      0.00    -0.08       0.00    -0.11
    20  10.0968      0.00     0.09       0.00    -0.18
    21  10.0968      0.00    -0.18       0.00     0.14
    22  10.0968      0.00     0.07       0.00    -0.12
    23  10.0969      0.00    -0.09       0.00    -0.17
    24  10.0969      0.00    -0.05       0.00     0.14
    25  10.0969      0.00     0.05       0.00    -0.14
    26  10.1296      0.00    -0.04       0.00    -0.15
    27  10.1296      0.00     0.03       0.00    -0.10
    28  10.1296      0.00     0.04       0.00    -0.11
    29  10.1296      0.00     0.11       0.00    -0.08
    30  10.1323      0.00    -0.14       0.00     0.07
    31  10.1323      0.00    -0.11       0.00     0.18
    32  10.1733      0.00     0.03       0.00    -0.02
    33  10.1733      0.00     0.06       0.00     0.29
    34  10.1733      0.00     0.09       0.00    -0.01
    35  10.1733      0.00    -0.05       0.00    -0.09
    36  10.1733      0.00    -0.17       0.00     0.22
    37  10.1733      0.00     0.01       0.00    -0.07
    38  10.2036      0.00    -0.01       0.00    -0.02
    39  10.2036      0.00     0.16       0.00     0.09
    40  10.2036      0.00     0.18       0.00    -0.19
    41  11.1020      0.00     0.12       0.00     0.02
    42  11.1347      0.00    -0.03       0.00     0.14
    43  12.1993      0.00     0.10       0.00    -0.17
    44  12.1993      0.00     0.11       0.00     0.08
    45  12.1993      0.00     0.08       0.00     0.12
    46  12.1993      0.00    -0.21       0.00     0.05
    47  13.0157      0.00     0.03       0.00     0.07
    48  13.0157      0.00     0.01       0.00     0.00
    49  13.0157      0.00     0.11       0.00     0.00
    50  13.0157      0.00     0.09       0.00    -0.07
    51  13.1031      0.00     0.14       0.00    -0.11
    52  13.1031      0.00     0.18       0.00    -0.14
    53  13.1031      0.00     0.24       0.00    -0.07
    54  13.1031      0.00     0.35       0.00    -0.09
    55  13.1138      0.00    -0.01       0.00     0.02
    56  13.1138      0.00     0.09       0.00    -0.00
    57  13.1138      0.00    -0.06       0.00    -0.04
    58  13.1138      0.00    -0.01       0.00    -0.11
    59  13.9796      0.00     0.02       0.00     0.10
    60  13.9796      0.00     0.00       0.00     0.02
    61  13.9796      0.00    -0.06       0.00     0.02
    62  13.9796      0.00     0.02       0.00     0.01
    63  13.9796      0.00    -0.13       0.00    -0.05
    64  13.9796      0.00    -0.01       0.00    -0.25
    65  14.0888      0.00    -0.09       0.00     0.06
    66  14.0888      0.00     0.15       0.00     0.10
    67  14.1708      0.00    -0.06       0.00    -0.06
    68  14.1763      0.00    -0.02       0.00     0.00
    69  14.1763      0.00     0.01       0.00     0.07
    70  14.1763      0.00    -0.07       0.00     0.06
    71  14.2035      0.00    -0.10       0.00     0.19
    72  14.2035      0.00    -0.12       0.00     0.23
    73  15.1455      0.00    -0.06       0.00     0.07
    74  15.1729      0.00    -0.13       0.00     0.07
    75  15.2002      0.00    -0.09       0.00    -0.17
    76  15.2030      0.00    -0.11       0.00     0.30
    77  18.0481      0.00    -0.13       0.00     0.12
    78  18.0483      0.00    -0.08       0.00     0.12
    79  18.0484      0.00    -0.06       0.00     0.16

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.

03QZ111    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        43.255    43.255    43.255
ecceobj         0.066     0.066     0.066
incobj          2.658     2.658     2.658
qmin           39.447    39.446    39.448
qmax           46.897    46.897    46.898
amean          43.066    43.066    43.066
amin           42.727    42.721    42.729
amax           43.429    43.429    43.429
emean           0.063     0.063     0.063
emin            0.042     0.042     0.042
emax            0.081     0.081     0.081
imean           3.899     3.899     3.899
imin            2.737     2.737     2.738
imax            4.781     4.781     4.781
excite_mean     0.092     0.092     0.092
fracstop        1.000     1.000     1.000
cjmean          3.080     3.080     3.080

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       177.9     177.9     178.0
kozaiamp        180.0     180.0     180.0