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 Mon Oct 23 01:37:14 2017
# Orbit generated from Bernstein formalism
# Fitting   23 observations of   23
# Arc:  12.13y
# First observation: 2001/08/19
#  Last observation: 2013/10/06
Preliminary a, adot, b, bdot, g, gdot:
  -0.000108   0.022663   0.000002  -0.000278   0.023230   0.000000
# Chi-squared of fit:    50.22 DOF:   40 RMS:  0.26
# Min/Max residuals:    -0.60    0.56
# Exact a, adot, b, bdot, g, gdot:
  1.336525E-05  2.285741E-02 -4.800646E-07 -2.791995E-04  2.360007E-02  2.835805E-03
# Covariance matrix:
  1.7238E-13 -6.1332E-14 -9.2403E-16  6.8992E-16  6.0346E-14 -2.0156E-13
 -6.1332E-14  4.8745E-14  6.5124E-16 -5.9291E-16 -2.2199E-15  1.7875E-13
 -9.2403E-16  6.5124E-16  1.0879E-13 -1.3701E-14 -1.0755E-15  2.7995E-15
  6.8992E-16 -5.9291E-16 -1.3701E-14  4.2439E-15  2.8367E-16 -2.4260E-15
  6.0346E-14 -2.2199E-15 -1.0755E-15  2.8367E-16  2.6651E-13 -5.5940E-14
 -2.0156E-13  1.7875E-13  2.7995E-15 -2.4260E-15 -5.5940E-14  7.2618E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.265784   -7.598003    0.450377   -0.020134   -0.907018  2452140.780533
# Heliocentric elements and errors
Epoch:              2452140.5000  =  2001/08/19
Mean Anomaly:           61.92269 +/-     0.025
Argument of Peri:      165.39941 +/-     0.031
Long of Asc Node:      111.78481 +/-     0.006
Inclination:             1.43039 +/-     0.000
Eccentricity:         0.11802034 +/-    0.0001
Semi-Major Axis:     45.26786803 +/-    0.0045
Time of Perihelion: 2433005.3979 +/-       7.1
Perihelion:          39.92533908 +/-    0.0046
Aphelion:            50.61039698 +/-    0.0055
Period (y)              304.5743 +/-      0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           42.83299017 +/-    0.0009
Ecliptic Y           -6.16153395 +/-    0.0001
Ecliptic Z           -0.93606539 +/-    0.0000
Ecliptic XDOT         0.00066729 +/-    0.0000
Ecliptic YDOT         0.00258637 +/-    0.0000
Ecliptic ZDOT        -0.00003944 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   43.28401283 +/-    0.0009
Geocenter to KBO     42.37276259 +/-    0.0009
# Hcoef:  6.42

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      

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     0.40       0.00     0.06
  2   0.0002     -5.44     0.30      -0.16    -0.06
  3   0.0028    -64.99    -0.14      -0.77     0.23
  4   0.0031    -70.57    -0.30      -0.87     0.17
  5   0.0056   -126.95     0.46      -2.08    -0.19
  6   0.0057   -131.26     0.47      -1.86     0.06
  7   0.1697  -4100.46    -0.03      -0.39     0.05
  8   0.1699  -4103.72    -0.13      -0.41    -0.04
  9   1.2179   -231.23    -0.19     -37.77    -0.08
 10   1.2182   -235.26    -0.38     -37.67    -0.15
 11   1.8789  11094.41    -0.37     -49.93     0.16
 12   1.8816  11080.57    -0.60     -52.01    -0.11
 13   1.8844  11065.50    -0.31     -53.88    -0.16
 14   1.8871  11049.18    -0.40     -55.65    -0.13
 15   4.0312  17963.66     0.56    -237.52     0.09
 16   4.0313  17963.21     0.55    -237.43     0.19
 17   4.0313  17962.71     0.49    -237.44     0.19
 18   5.0843  21281.56    -0.13    -300.89    -0.15
 19   5.0843  21281.42    -0.20    -300.83    -0.09
 20   5.0843  21281.42    -0.03    -300.83    -0.09
 21  12.1288  52904.01    -0.10    -698.64    -0.15
 22  12.1289  52900.76    -0.01    -698.50    -0.06
 23  12.1316  52829.48     0.05    -697.58     0.26

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        45.519    45.533    45.506
ecceobj         0.121     0.121     0.121
incobj          1.430     1.430     1.430
qmin           39.271    39.253    39.262
qmax           51.647    51.616    51.607
amean          45.289    45.296    45.274
amin           44.923    44.924    44.901
amax           45.699    45.701    45.683
emean           0.116     0.116     0.116
emin            0.101     0.101     0.100
emax            0.130     0.130     0.130
imean           0.909     0.908     0.910
imin            0.185     0.185     0.185
imax            1.517     1.512     1.510
excite_mean     0.117     0.117     0.117
fracstop        1.000     1.000     1.000
cjmean          3.100     3.101     3.100

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       166.4     166.7     166.1
kozaiamp        179.9     180.0     179.9