Orbit Fit and Astrometric record for 01QP297

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: 01QP297   
# Created Thu Dec  9 02:09:06 2021
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     61 observations of     61
# Arc:  17.27y
# First observation: 2001/08/19
#  Last observation: 2018/11/26
# Chi-squared of fit:    91.27 DOF:    116 RMS:  0.22
# Min/Max residuals:    -0.74    0.67
# Exact a, adot, b, bdot, g, gdot:
  1.379842E-05  2.285747E-02 -1.907316E-07 -2.793939E-04  2.360178E-02  2.836199E-03
# Covariance matrix:
  1.2228E-13 -2.4956E-14 -3.6974E-16  2.3133E-16 -2.7736E-15 -5.1795E-14
 -2.4956E-14  1.4801E-14  2.3103E-16 -1.7197E-16  1.7970E-14  3.7516E-14
 -3.6974E-16  2.3103E-16  9.2735E-14 -6.6658E-15  4.6765E-17  6.5223E-16
  2.3133E-16 -1.7197E-16 -6.6658E-15  6.5229E-16 -1.8707E-16 -4.6095E-16
 -2.7736E-15  1.7970E-14  4.6765E-17 -1.8707E-16  9.3787E-14  3.6202E-14
 -5.1795E-14  3.7516E-14  6.5223E-16 -4.6095E-16  3.6202E-14  1.0130E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.265784   -7.598003    0.450377   -0.020134   -0.907017  2452140.780533
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           62.02260 +/-     0.013
Argument of Peri:      165.28099 +/-     0.017
Long of Asc Node:      111.80206 +/-     0.003
Inclination:             1.43062 +/-     0.000
Eccentricity:         0.11795583 +/-    0.0000
Semi-Major Axis:     45.25438078 +/-    0.0023
Time of Perihelion: 2432983.0869 +/-       4.2
Perihelion:          39.91636294 +/-    0.0021
Aphelion:            50.59239861 +/-    0.0026
Period (y)              304.4382 +/-      0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.82993953 +/-    0.0005
Ecliptic Y           -6.16110854 +/-    0.0001
Ecliptic Z           -0.93598507 +/-    0.0000
Ecliptic XDOT         0.00066728 +/-    0.0000
Ecliptic YDOT         0.00258618 +/-    0.0000
Ecliptic ZDOT        -0.00003946 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.28086018 +/-    0.0005
Geocenter to KBO     42.36963616 +/-    0.0005
# Hcoef:  6.72

The following table shows the complete astrometric record for 01QP297. 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 (01QP297) followed by the observatory code and reference code for the source of the astrometry.

2001 08  19.27979  23 34 05.66   -04 10 39.6   21.9R 01QP297   807  Cd7925      
2001 08  19.36483  23 34 05.33   -04 10 41.9         01QP297   807  Cd7925      
2001 08  20.31539  23 34 01.69   -04 11 06.0         01QP297   807  Cd7925      
2001 08  20.40083  23 34 01.35   -04 11 08.3         01QP297   807  Cd7925      
2001 08  21.31117  23 33 57.92   -04 11 31.7   22.0R 01QP297   807  Cd7925      
2001 08  21.37861  23 33 57.65   -04 11 33.2         01QP297   807  Cd7925      
2001 10  20.26721  23 29 53.79   -04 37 38.2   22.8R 01QP297   695  Ce0366      
2001 10  20.32452  23 29 53.59   -04 37 39.5         01QP297   695  Ce0366      
2002 11  07.11379  23 33 52.46   -04 12 45.7   22.8R 01QP297   695  Ci2660      
2002 11  07.21339  23 33 52.21   -04 12 47.2         01QP297   695  Ci2660      
2003 07  06.56076  23 45 26.56   -02 58 07.0   23.0R 01QP297   568  Ci2660      
2003 07  07.54055  23 45 25.77   -02 58 14.4         01QP297   568  Ci2660      
2003 07  08.54994  23 45 24.90   -02 58 22.1         01QP297   568  Ci2660      
2003 07  09.53490  23 45 23.95   -02 58 30.2         01QP297   568  Ci2660      
2005 08  30.69362  23 52 29.81   -02 15 32.4   22.4R 01QP297   250  S~06AP      
2005 08  30.70034  23 52 29.78   -02 15 32.5         01QP297   250  S~06AP      
2005 08  30.70705  23 52 29.75   -02 15 32.7         01QP297   250  S~06AP      
2006 09  19.310577 23 55 52.55   -01 54 35.7         01QP297   645  C~1PqX      
2006 09  19.311406 23 55 52.54   -01 54 35.7         01QP297   645  C~1PqX      
2006 09  19.313897 23 55 52.54   -01 54 35.7         01QP297   645  C~1PqX      
2013 10  05.31487  00 27 10.87   +01 23 50.6   22.5R 01QP297   695  C~0zdD      
2013 10  05.35984  00 27 10.68   +01 23 49.5         01QP297   695  C~0zdD      
2013 10  06.33591  00 27 06.57   +01 23 23.5         01QP297   695  C~0zdD      
2013 10  13.10179  00 26 38.433  +01 20 23.42  23.6z 01QP297   W84  C~4yCS      
2013 10  13.11209  00 26 38.400  +01 20 23.35  23.0i 01QP297   W84  C~4yCS      
2013 10  13.11209  00 26 38.40   +01 20 23.3   23.0i 01QP297   W84  C~3cV0      
2013 10  28.07505  00 25 40.024  +01 14 17.39  22.7r 01QP297   W84  C~4yCS      
2013 10  28.07505  00 25 40.02   +01 14 17.4   23.0r 01QP297   W84  C~3cV0      
2013 11  08.16809  00 25 02.420  +01 10 27.50  23.3r 01QP297   W84  C~4yCS      
2013 11  08.16809  00 25 02.42   +01 10 27.5   23.2r 01QP297   W84  C~3cV0      
2013 11  22.08391  00 24 25.228  +01 06 48.13  23.9g 01QP297   W84  C~4yCS      
2013 11  22.09533  00 24 25.194  +01 06 47.96  23.3r 01QP297   W84  C~4yCS      
2013 11  22.09533  00 24 25.20   +01 06 48.0   23.7r 01QP297   W84  C~3cV0      
2013 11  22.09673  00 24 25.192  +01 06 47.84  22.9i 01QP297   W84  C~4yCS      
2013 11  22.09673  00 24 25.19   +01 06 47.8   23.0i 01QP297   W84  C~3cV0      
2014 08  18.31206  00 34 44.846  +02 12 37.23  22.4z 01QP297   W84  C~4yCS      
2014 10  28.18822  00 30 12.002  +01 42 59.89  23.6r 01QP297   W84  C~4yCS      
2016 09  09.28058  00 42 27.723  +03 00 38.46  23.6r 01QP297   W84  C~4yCS      
2016 09  09.28058  00 42 27.72   +03 00 38.5   23.5r 01QP297   W84  C~3cV0      
2016 09  09.28195  00 42 27.705  +03 00 38.51  22.5i 01QP297   W84  C~4yCS      
2016 09  09.28195  00 42 27.71   +03 00 38.5   23.1i 01QP297   W84  C~3cV0      
2016 09  09.28332  00 42 27.701  +03 00 38.35  24.4g 01QP297   W84  C~4yCS      
2016 11  08.14374  00 38 30.115  +02 35 34.27  23.2i 01QP297   W84  C~4yCS      
2016 11  08.144583 00 38 30.10   +02 35 34.2   22.5z 01QP297   W84  C~351I      
2016 11  08.14512  00 38 30.110  +02 35 34.12  22.8z 01QP297   W84  C~4yCS      
2016 11  18.08134  00 38 00.287  +02 32 37.41  23.3r 01QP297   W84  C~4yCS      
2016 11  18.08134  00 38 00.29   +02 32 37.4   23.4r 01QP297   W84  C~3cV0      
2016 11  18.08271  00 38 00.287  +02 32 37.40  24.3g 01QP297   W84  C~4yCS      
2016 11  26.10227  00 37 40.690  +02 30 45.23  22.8r 01QP297   W84  C~4yCS      
2016 11  26.10227  00 37 40.69   +02 30 45.3   23.2r 01QP297   W84  C~3cV0      
2016 11  26.10867  00 37 40.676  +02 30 45.20  23.5i 01QP297   W84  C~4yCS      
2016 11  26.11004  00 37 40.662  +02 30 44.86  24.3g 01QP297   W84  C~4yCS      
2016 11  30.09140  00 37 32.616  +02 30 00.71  22.8z 01QP297   W84  C~4yCS      
2017 08  28.276620 00 47 37.35   +03 33 17.1   23.1i 01QP297   W84  C~351I      
2017 08  28.27714  00 47 37.349  +03 33 17.04  23.1i 01QP297   W84  C~4yCS      
2017 08  28.277998 00 47 37.34   +03 33 17.0   22.9r 01QP297   W84  C~351I      
2017 08  28.27853  00 47 37.344  +03 33 17.00  23.0r 01QP297   W84  C~4yCS      
2018 10  18.19480  00 48 44.990  +03 39 41.55  22.6i 01QP297   W84  C~4yCS      
2018 10  18.19616  00 48 44.991  +03 39 41.59  22.9z 01QP297   W84  C~4yCS      
2018 11  26.07249  00 46 32.561  +03 26 26.44  23.6r 01QP297   W84  C~4yCS      
2018 11  26.07387  00 46 32.558  +03 26 26.58  24.1g 01QP297   W84  C~4yCS      

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     0.12
     2   0.0002      0.00     0.24       0.00    -0.02
     3   0.0028      0.00    -0.27       0.00     0.07
     4   0.0031      0.00    -0.40       0.00    -0.05
     5   0.0056      0.00     0.45       0.00    -0.08
     6   0.0057      0.00     0.36       0.00     0.16
     7   0.1697      0.00     0.21       0.00     0.09
     8   0.1699      0.00     0.16       0.00    -0.03
     9   1.2179      0.00     0.17       0.00    -0.03
    10   1.2182      0.00     0.03       0.00    -0.17
    11   1.8789      0.00    -0.64       0.00    -0.09
    12   1.8816      0.00    -0.74       0.00    -0.43
    13   1.8844      0.00    -0.45       0.00    -0.35
    14   1.8871      0.00    -0.55       0.00    -0.37
    15   4.0312      0.00     0.42       0.00     0.39
    16   4.0313      0.00     0.36       0.00     0.47
    17   4.0313      0.00     0.31       0.00     0.45
    18   5.0843      0.00    -0.03       0.00    -0.02
    19   5.0843      0.00    -0.12       0.00     0.00
    20   5.0843      0.00     0.04       0.00     0.07
    21  12.1288      0.00    -0.10       0.00     0.24
    22  12.1289      0.00    -0.06       0.00     0.36
    23  12.1316      0.00    -0.13       0.00     0.67
    24  12.1501      0.00    -0.13       0.00    -0.25
    25  12.1501      0.00     0.02       0.00    -0.10
    26  12.1501      0.00     0.02       0.00    -0.05
    27  12.1911      0.00     0.07       0.00     0.08
    28  12.1911      0.00     0.13       0.00     0.07
    29  12.2215      0.00     0.06       0.00     0.05
    30  12.2215      0.00     0.06       0.00     0.05
    31  12.2596      0.00     0.10       0.00    -0.03
    32  12.2596      0.00     0.07       0.00    -0.02
    33  12.2596      0.00    -0.02       0.00    -0.06
    34  12.2596      0.00    -0.03       0.00    -0.20
    35  12.2596      0.00    -0.00       0.00    -0.16
    36  12.9967      0.00     0.40       0.00     0.06
    37  13.1907      0.00     0.13       0.00    -0.10
    38  15.0582      0.00     0.24       0.00     0.01
    39  15.0582      0.00     0.28       0.00    -0.03
    40  15.0582      0.00     0.17       0.00     0.05
    41  15.0582      0.00     0.09       0.00     0.06
    42  15.0582      0.00     0.11       0.00    -0.07
    43  15.2221      0.00    -0.03       0.00     0.01
    44  15.2221      0.00    -0.21       0.00    -0.05
    45  15.2221      0.00    -0.04       0.00    -0.12
    46  15.2493      0.00    -0.02       0.00    -0.07
    47  15.2493      0.00    -0.07       0.00    -0.06
    48  15.2493      0.00    -0.01       0.00    -0.05
    49  15.2712      0.00    -0.11       0.00     0.01
    50  15.2712      0.00    -0.11       0.00    -0.06
    51  15.2713      0.00    -0.11       0.00    -0.01
    52  15.2713      0.00    -0.27       0.00    -0.34
    53  15.2822      0.00    -0.23       0.00    -0.03
    54  16.0246      0.00     0.15       0.00     0.09
    55  16.0246      0.00     0.16       0.00     0.04
    56  16.0246      0.00     0.07       0.00     0.02
    57  16.0246      0.00     0.15       0.00     0.03
    58  17.1634      0.00    -0.07       0.00    -0.00
    59  17.1634      0.00     0.03       0.00     0.07
    60  17.2698      0.00    -0.22       0.00    -0.14
    61  17.2698      0.00    -0.21       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.

01QP297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        45.505    45.505    45.505
ecceobj         0.121     0.121     0.121
incobj          1.430     1.430     1.430
qmin           39.256    39.257    39.245
qmax           51.592    51.591    51.604
amean          45.274    45.274    45.274
amin           44.890    44.900    44.900
amax           45.696    45.700    45.686
emean           0.116     0.116     0.116
emin            0.101     0.101     0.101
emax            0.130     0.130     0.130
imean           0.910     0.910     0.910
imin            0.183     0.183     0.183
imax            1.515     1.512     1.515
excite_mean     0.117     0.117     0.117
fracstop        1.000     1.000     1.000
cjmean          3.100     3.100     3.100

libcent 0       139.0    -180.0    -180.0
libamp  0       111.8    -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       166.3     166.3     166.3
kozaiamp        180.0     180.0     179.9