Orbit Fit and Astrometric record for 01QR297

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: 01QR297   
# Created Sun Oct 22 01:37:13 2017
# Orbit generated from Bernstein formalism
# Fitting   20 observations of   20
# Arc:   9.08y
# First observation: 2001/08/20
#  Last observation: 2010/09/17
Preliminary a, adot, b, bdot, g, gdot:
  -0.000871   0.022556   0.000063  -0.002022   0.022098   0.000000
# Chi-squared of fit:    99.17 DOF:   34 RMS:  0.39
# Min/Max residuals:    -1.29    0.65
# Exact a, adot, b, bdot, g, gdot:
  1.501670E-05  2.245342E-02 -2.167817E-06 -2.014412E-03  2.347823E-02 -4.518138E-04
# Covariance matrix:
  2.4406E-13 -8.9415E-14 -4.7568E-15  5.0942E-15  9.0987E-15 -3.1725E-13
 -8.9415E-14  7.4030E-14  5.5149E-15 -5.9052E-15  1.4791E-14  3.6709E-13
 -4.7568E-15  5.5149E-15  1.9202E-13 -3.3165E-14  1.7233E-15  3.1244E-14
  5.0942E-15 -5.9052E-15 -3.3165E-14  9.6185E-15 -1.8397E-15 -3.3454E-14
  9.0987E-15  1.4791E-14  1.7233E-15 -1.8397E-15  1.6907E-13  1.1002E-13
 -3.1725E-13  3.6709E-13  3.1244E-14 -3.3454E-14  1.1002E-13  2.0790E-12
#      lat0       lon0       xBary       yBary       zBary        JD0
    0.420734  -36.608462   -0.060242    0.007319   -1.010815  2452141.615073
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:          307.40151 +/-     0.130
Argument of Peri:      230.47852 +/-     0.139
Long of Asc Node:      148.04681 +/-     0.000
Inclination:             5.14580 +/-     0.000
Eccentricity:         0.02659021 +/-    0.0001
Semi-Major Axis:     44.29763850 +/-    0.0032
Time of Perihelion: 2467874.5341 +/-      38.7
Perihelion:          43.11975491 +/-    0.0040
Aphelion:            45.47552208 +/-    0.0041
Period (y)              294.8350 +/-      0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           35.03988158 +/-    0.0006
Ecliptic Y          -25.94757394 +/-    0.0004
Ecliptic Z            0.31266481 +/-    0.0000
Ecliptic XDOT         0.00151189 +/-    0.0000
Ecliptic YDOT         0.00213355 +/-    0.0000
Ecliptic ZDOT        -0.00023508 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.60238129 +/-    0.0005
Geocenter to KBO     42.59264546 +/-    0.0007
# Hcoef:  6.28

The following table shows the complete astrometric record for 01QR297. 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 (01QR297) followed by the observatory code and reference code for the source of the astrometry.

2001 08  20.11433  21 42 19.16   -13 19 28.7   21.6R 01QR297   807  Cd7926      
2001 08  20.19231  21 42 18.80   -13 19 30.6         01QR297   807  Cd7926      
2001 08  21.13579  21 42 14.59   -13 19 53.3   21.6R 01QR297   807  Cd7926      
2001 08  21.20927  21 42 14.27   -13 19 55.0         01QR297   807  Cd7926      
2001 09  12.23737  21 40 40.86   -13 28 17.9   22.5R 01QR297   695  Cd7926      
2001 09  12.28443  21 40 40.66   -13 28 18.7         01QR297   695  Cd7926      
2004 10  11.14657  21 54 25.89   -12 39 57.3   22.9R 01QR297   695  Cl9814      
2004 10  11.23773  21 54 25.69   -12 39 58.0         01QR297   695  Cl9814      
2004 11  10.13073  21 53 50.72   -12 43 41.0   22.4R 01QR297   695  Cl9814      
2004 11  11.10537  21 53 50.93   -12 43 41.5         01QR297   695  Cl9814      
2005 06  07.39615  22 06 33.75   -11 39 24.2   22.6R 01QR297   304  Cn6481      
2005 06  08.35242  22 06 33.06   -11 39 29.0         01QR297   304  Cn6481      
2006 09  24.13786  22 05 29.35   -11 54 55.1   22.4R 01QR297   688  Cs0792      
2006 09  24.23210  22 05 29.01   -11 54 57.7         01QR297   688  Cs0792      
2007 05  07.72531  22 16 06.13   -11 00 09.9   23.4R 01QR297   250  S~06AP      
2007 05  07.73225  22 16 06.15   -11 00 09.8         01QR297   250  S~06AP      
2007 05  07.73920  22 16 06.16   -11 00 09.7         01QR297   250  S~06AP      
2007 05  07.74614  22 16 06.18   -11 00 09.6         01QR297   250  S~06AP      
2010 09  17.17291  22 26 17.71   -10 27 26.8   21.8R 01QR297   688  C~0NFN      
2010 09  17.21874  22 26 17.49   -10 27 29.0         01QR297   688  C~0NFN      

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     0.02       0.00     0.17
  2   0.0002     -5.59    -0.07      -0.07     0.17
  3   0.0028    -71.08    -0.15      -1.35     0.02
  4   0.0030    -76.05     0.06      -1.43     0.01
  5   0.0633  -1528.60     0.24     -30.49    -0.17
  6   0.0634  -1531.62     0.12     -30.29     0.07
  7   3.1431  10814.03    -0.16   -1311.33    -0.07
  8   3.1434  10811.03     0.37   -1310.99     0.34
  9   3.2252  10252.55    -0.09   -1347.22    -0.10
 10   3.2279  10255.28     0.29   -1348.74    -0.44
 11   3.7982  22160.09    -0.97   -1582.63     0.01
 12   3.8008  22148.79    -1.29   -1583.58     0.18
 13   5.0952  20935.83    -0.04   -2126.99     0.07
 14   5.0955  20930.19    -0.14   -2127.68    -0.56
 15   5.7128  31013.86     0.58   -2368.86    -0.02
 16   5.7128  31014.18     0.65   -2368.87    -0.02
 17   5.7129  31014.35     0.58   -2368.83     0.03
 18   5.7129  31014.67     0.65   -2368.84     0.03
 19   9.0761  40404.83     0.11   -3829.50     0.56
 20   9.0763  40400.86    -0.72   -3830.37    -0.29

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.

01QR297    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        44.536    44.546    44.526
ecceobj         0.030     0.030     0.030
incobj          5.135     5.135     5.135
qmin           42.218    42.251    42.252
qmax           46.815    46.828    46.784
amean          44.439    44.448    44.430
amin           44.089    44.109    44.089
amax           44.787    44.798    44.797
emean           0.031     0.031     0.031
emin            0.016     0.016     0.016
emax            0.045     0.045     0.045
imean           4.459     4.458     4.459
imin            3.942     3.942     3.942
imax            5.014     5.011     5.016
excite_mean     0.084     0.084     0.084
fracstop        1.000     1.000     1.000
cjmean          3.099     3.099     3.098

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       179.7     179.5     179.7
kozaiamp        180.0     179.9     180.0