Orbit Fit and Astrometric record for 01QS322

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: 01QS322   
# Created Sun Dec  5 02:09:09 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     72 observations of     72
# Arc:  17.27y
# First observation: 2001/08/19
#  Last observation: 2018/11/26
# Chi-squared of fit:    66.16 DOF:    138 RMS:  0.17
# Min/Max residuals:    -0.40    0.42
# Exact a, adot, b, bdot, g, gdot:
  1.557935E-05  2.380271E-02 -1.480292E-06  1.024701E-04  2.416500E-02  2.353859E-04
# Covariance matrix:
  1.8021E-13 -2.1176E-14  1.2256E-16 -5.8440E-17  4.5885E-14 -3.3602E-14
 -2.1176E-14  8.9543E-15 -7.9524E-17  3.6763E-17  8.1874E-15  2.0923E-14
  1.2256E-16 -7.9524E-17  1.1839E-13 -8.8230E-15 -7.6552E-17 -2.0375E-16
 -5.8440E-17  3.6763E-17 -8.8230E-15  7.8399E-16  3.2983E-17  9.4273E-17
  4.5885E-14  8.1874E-15 -7.6552E-17  3.2983E-17  8.6885E-14  1.8308E-14
 -3.3602E-14  2.0923E-14 -2.0375E-16  9.4273E-17  1.8308E-14  5.3668E-14
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.000502  -11.144226    0.393970   -0.000104   -0.933135  2452140.744803
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:          356.55692 +/-     0.013
Argument of Peri:        3.59621 +/-     0.015
Long of Asc Node:      348.46666 +/-     0.004
Inclination:             0.25112 +/-     0.000
Eccentricity:         0.03996095 +/-    0.0000
Semi-Major Axis:     44.07654394 +/-    0.0022
Time of Perihelion: 2453162.7439 +/-       8.8
Perihelion:          42.31520323 +/-    0.0026
Aphelion:            45.83788466 +/-    0.0028
Period (y)              292.6304 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           41.44406726 +/-    0.0005
Ecliptic Y           -8.55905914 +/-    0.0001
Ecliptic Z           -0.00043827 +/-    0.0000
Ecliptic XDOT         0.00053877 +/-    0.0000
Ecliptic YDOT         0.00264215 +/-    0.0000
Ecliptic ZDOT         0.00001182 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   42.31865240 +/-    0.0005
Geocenter to KBO     41.38218712 +/-    0.0005
# Hcoef:  6.85

The following table shows the complete astrometric record for 01QS322. 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 (01QS322) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.24406  23 19 01.26   -04 24 35.4   21.5R 01QS322   807  Ce0366      
2001 08  19.32752  23 19 00.92   -04 24 37.5         01QS322   807  Ce0366      
2001 10  20.24532  23 14 46.06   -04 51 31.5   22.5R 01QS322   695  Ce0366      
2001 10  20.30539  23 14 45.86   -04 51 32.5         01QS322   695  Ce0366      
2001 10  21.13288  23 14 43.23   -04 51 49.3         01QS322   695  Ce0366      
2001 11  03.03451  23 14 07.88   -04 55 32.7   20.2  01QS322   304  Ce6601      
2001 11  03.08087  23 14 07.76   -04 55 33.2         01QS322   304  Ce6601      
2002 09  12.43579  23 22 20.26   -04 03 03.2   22.3R 01QS322   568  Cg1155      
2002 09  13.54512  23 22 15.34   -04 03 34.4         01QS322   568  Cg1155      
2003 10  23.22419  23 24 37.74   -03 47 58.3         01QS322   304  Ci9379      
2003 10  23.26101  23 24 37.61   -03 47 59.1         01QS322   304  Ci9379      
2007 10  11.28920  23 45 18.38   -01 33 08.7   23.9R 01QS322   688  Cw0237      
2007 10  11.34860  23 45 18.12   -01 33 09.8         01QS322   688  Cw0237      
2009 09  18.17436  23 56 55.821  -00 16 53.89        01QS322   809  C~0FlA      
2009 09  18.17887  23 56 55.822  -00 16 53.93        01QS322   809  C~0FlA      
2009 09  18.18732  23 56 55.776  -00 16 54.22        01QS322   809  C~0FlA      
2009 09  18.19809  23 56 55.713  -00 16 54.58        01QS322   809  C~0FlA      
2009 09  18.20509  23 56 55.702  -00 16 54.64        01QS322   809  C~0FlA      
2010 09  16.47130  00 02 04.734  +00 16 56.61  22.5G 01QS322   F51  C~2r78      
2010 10  03.42097  00 00 50.404  +00 08 54.36  23.2G 01QS322   F51  C~2r78      
2013 09  30.15950  00 16 03.438  +01 48 52.54  23.0r 01QS322   W84  C~4yCT      
2013 09  30.15950  00 16 03.44   +01 48 52.5   23.3r 01QS322   W84  C~3cV0      
2013 09  30.16097  00 16 03.439  +01 48 52.31  22.4i 01QS322   W84  C~4yCT      
2013 09  30.16097  00 16 03.44   +01 48 52.3   22.8i 01QS322   W84  C~3cV0      
2013 10  13.09194  00 15 07.323  +01 42 49.52  22.2z 01QS322   W84  C~4yCT      
2013 10  13.09194  00 15 07.32   +01 42 49.5   22.2z 01QS322   W84  C~3cV0      
2013 10  13.105868 00 15 07.25   +01 42 48.9   22.5i 01QS322   W84  C~351I      
2013 10  28.07212  00 14 07.859  +01 36 24.03  23.7r 01QS322   W84  C~4yCT      
2013 10  28.07212  00 14 07.86   +01 36 24.0   23.7r 01QS322   W84  C~3cV0      
2013 11  08.13056  00 13 30.589  +01 32 22.23  22.8r 01QS322   W84  C~4yCT      
2013 11  08.13056  00 13 30.59   +01 32 22.3   23.2r 01QS322   W84  C~3cV0      
2013 11  22.08250  00 12 54.717  +01 28 29.05  24.0g 01QS322   W84  C~4yCT      
2013 11  22.08554  00 12 54.708  +01 28 29.11  23.0r 01QS322   W84  C~4yCT      
2013 11  22.08554  00 12 54.71   +01 28 29.1   23.5r 01QS322   W84  C~3cV0      
2013 11  22.08692  00 12 54.709  +01 28 29.18  22.6i 01QS322   W84  C~4yCT      
2013 11  22.08692  00 12 54.71   +01 28 29.2   22.7i 01QS322   W84  C~3cV0      
2014 07  27.58096  00 24 45.804  +02 45 25.22  23.4G 01QS322   F51  C~2r78      
2014 07  30.60325  00 24 40.685  +02 44 52.72  23.7G 01QS322   F51  C~2r78      
2014 09  01.48091  00 23 05.00   +02 34 40.2   22.9R 01QS322   G37  C~18cF      
2014 09  02.47203  00 23 01.20   +02 34 15.8         01QS322   G37  C~18cF      
2014 09  03.47459  00 22 57.31   +02 33 50.7         01QS322   G37  C~18cF      
2014 09  20.49244  00 21 46.402  +02 26 14.00  23.2G 01QS322   F51  C~2r78      
2014 10  29.12676  00 19 03.052  +02 08 39.21  22.4z 01QS322   W84  C~4yCT      
2014 10  29.12676  00 19 03.05   +02 08 39.2   22.5z 01QS322   W84  C~3cV0      
2014 10  29.17372  00 19 02.883  +02 08 37.98  23.1r 01QS322   W84  C~4yCT      
2014 10  29.17372  00 19 02.88   +02 08 38.0   23.2r 01QS322   W84  C~3cV0      
2014 11  13.09322  00 18 13.882  +02 03 20.55  22.6z 01QS322   W84  C~4yCT      
2014 11  13.09322  00 18 13.88   +02 03 20.5   22.7z 01QS322   W84  C~3cV0      
2014 11  14.094757 00 18 11.05   +02 03 02.6   22.3z 01QS322   W84  C~351J      
2014 11  14.09529  00 18 11.071  +02 03 02.38  22.8z 01QS322   W84  C~4yCT      
2015 10  10.35412  00 25 19.155  +02 49 30.21  23.7G 01QS322   F51  C~2r78      
2015 10  13.39945  00 25 05.976  +02 48 05.70  23.7G 01QS322   F51  C~2r78      
2015 10  17.16249  00 24 49.964  +02 46 22.61  23.1r 01QS322   W84  C~4yCT      
2015 10  17.16249  00 24 49.97   +02 46 22.6   23.3r 01QS322   W84  C~3cV0      
2015 10  23.41651  00 24 24.261  +02 43 36.49  23.2G 01QS322   F51  C~2r78      
2015 10  29.32881  00 24 01.282  +02 41 08.28  23.5G 01QS322   F51  C~2r78      
2015 11  01.30160  00 23 50.280  +02 39 57.56  23.5G 01QS322   F51  C~2r78      
2016 08  14.58139  00 33 58.188  +03 45 22.62  23.7G 01QS322   F51  C~2r78      
2016 09  09.32608  00 32 29.260  +03 35 56.41  23.4r 01QS322   W84  C~4yCT      
2016 09  09.32608  00 32 29.26   +03 35 56.4   23.4r 01QS322   W84  C~3cV0      
2016 11  18.09930  00 27 51.974  +03 06 16.73  23.3i 01QS322   W84  C~4yCT      
2016 11  18.10069  00 27 51.983  +03 06 16.85  23.2r 01QS322   W84  C~4yCT      
2016 11  18.10069  00 27 51.98   +03 06 16.8   23.4r 01QS322   W84  C~3cV0      
2017 08  22.32044  00 38 33.648  +04 15 05.34  22.6r 01QS322   W84  C~4yCT      
2017 08  22.32182  00 38 33.615  +04 15 05.09  22.7i 01QS322   W84  C~4yCT      
2017 09  15.46689  00 37 03.855  +04 05 35.52  23.1G 01QS322   F51  C~2r78      
2017 09  22.43290  00 36 34.031  +04 02 25.67  23.3G 01QS322   F51  C~2r78      
2017 10  29.13620  00 33 56.364  +03 45 38.48  23.1z 01QS322   W84  C~4yCT      
2018 09  09.25958  00 42 29.274  +04 40 28.53  22.4z 01QS322   W84  C~4yCT      
2018 10  10.23897  00 40 15.944  +04 26 23.27  23.0i 01QS322   W84  C~4yCT      
2018 11  26.06693  00 37 26.490  +04 08 22.11  23.2r 01QS322   W84  C~4yCT      
2018 11  26.06832  00 37 26.481  +04 08 21.93  23.8g 01QS322   W84  C~4yCT      

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    -0.13       0.00     0.29
     2   0.0002      0.00    -0.10       0.00     0.32
     3   0.1698      0.00    -0.06       0.00     0.12
     4   0.1699      0.00    -0.10       0.00     0.34
     5   0.1722      0.00    -0.13       0.00     0.21
     6   0.2075      0.00     0.13       0.00    -0.40
     7   0.2076      0.00    -0.02       0.00    -0.24
     8   1.0655      0.00     0.42       0.00    -0.27
     9   1.0686      0.00     0.32       0.00    -0.24
    10   2.1765      0.00    -0.14       0.00    -0.20
    11   2.1766      0.00    -0.28       0.00    -0.24
    12   6.1439      0.00     0.12       0.00    -0.12
    13   6.1440      0.00    -0.12       0.00     0.33
    14   8.0819      0.00    -0.10       0.00     0.20
    15   8.0820      0.00     0.22       0.00     0.29
    16   8.0820      0.00     0.10       0.00     0.24
    17   8.0820      0.00    -0.12       0.00     0.18
    18   8.0820      0.00     0.18       0.00     0.32
    19   9.0766      0.00     0.04       0.00    -0.32
    20   9.1230      0.00    -0.01       0.00    -0.23
    21  12.1148      0.00     0.09       0.00    -0.13
    22  12.1148      0.00     0.06       0.00    -0.09
    23  12.1148      0.00     0.19       0.00    -0.29
    24  12.1148      0.00     0.18       0.00    -0.28
    25  12.1502      0.00     0.01       0.00     0.03
    26  12.1502      0.00     0.05       0.00     0.05
    27  12.1502      0.00    -0.15       0.00    -0.19
    28  12.1912      0.00    -0.04       0.00    -0.14
    29  12.1912      0.00    -0.06       0.00    -0.11
    30  12.2215      0.00     0.15       0.00     0.00
    31  12.2215      0.00     0.14       0.00    -0.07
    32  12.2597      0.00     0.04       0.00    -0.17
    33  12.2597      0.00     0.03       0.00    -0.08
    34  12.2597      0.00     0.00       0.00    -0.07
    35  12.2597      0.00     0.08       0.00     0.04
    36  12.2597      0.00     0.06       0.00     0.02
    37  12.9373      0.00    -0.33       0.00    -0.10
    38  12.9455      0.00    -0.08       0.00     0.02
    39  13.0356      0.00    -0.35       0.00     0.28
    40  13.0383      0.00    -0.24       0.00     0.36
    41  13.0410      0.00    -0.20       0.00     0.28
    42  13.0876      0.00    -0.12       0.00     0.05
    43  13.1934      0.00    -0.09       0.00     0.04
    44  13.1934      0.00    -0.06       0.00     0.05
    45  13.1935      0.00     0.01       0.00    -0.04
    46  13.1935      0.00     0.05       0.00    -0.06
    47  13.2344      0.00     0.05       0.00    -0.06
    48  13.2344      0.00     0.08       0.00    -0.01
    49  13.2371      0.00    -0.34       0.00     0.22
    50  13.2371      0.00    -0.01       0.00     0.01
    51  14.1413      0.00     0.04       0.00    -0.29
    52  14.1496      0.00     0.07       0.00     0.06
    53  14.1599      0.00     0.13       0.00    -0.08
    54  14.1599      0.00     0.04       0.00    -0.07
    55  14.1771      0.00     0.18       0.00    -0.24
    56  14.1933      0.00     0.15       0.00    -0.13
    57  14.2014      0.00    -0.24       0.00     0.02
    58  14.9879      0.00     0.08       0.00     0.05
    59  15.0584      0.00    -0.05       0.00    -0.01
    60  15.0584      0.00    -0.05       0.00     0.00
    61  15.2494      0.00    -0.08       0.00    -0.03
    62  15.2494      0.00     0.07       0.00     0.06
    63  15.2494      0.00     0.12       0.00     0.11
    64  16.0084      0.00     0.30       0.00    -0.05
    65  16.0084      0.00    -0.13       0.00    -0.27
    66  16.0745      0.00     0.12       0.00     0.14
    67  16.0936      0.00    -0.11       0.00     0.03
    68  16.1941      0.00     0.13       0.00     0.01
    69  17.0569      0.00     0.03       0.00     0.33
    70  17.1417      0.00    -0.12       0.00     0.08
    71  17.2699      0.00     0.10       0.00     0.18
    72  17.2699      0.00     0.01       0.00     0.02

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.

01QS322    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.313    44.313    44.313
ecceobj         0.045     0.045     0.045
incobj          0.248     0.248     0.248
qmin           41.470    41.471    41.469
qmax           46.862    46.861    46.863
amean          44.080    44.079    44.080
amin           43.741    43.741    43.741
amax           44.430    44.430    44.430
emean           0.040     0.040     0.040
emin            0.024     0.024     0.024
emax            0.055     0.055     0.055
imean           1.873     1.873     1.873
imin            1.182     1.182     1.182
imax            2.438     2.438     2.438
excite_mean     0.052     0.052     0.052
fracstop        1.000     1.000     1.000
cjmean          3.099     3.099     3.099

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       189.7     189.6     189.7
kozaiamp        180.0     180.0     180.0