Orbit Fit and Astrometric record for 01OO108

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: 01OO108   
# Created Thu Feb 21 02:07:51 2019
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting    9 observations of    9
# Arc:  13.84y
# First observation: 2001/07/26
#  Last observation: 2015/05/28
# Chi-squared of fit:     4.07 DOF:   12 RMS:  0.12
# Min/Max residuals:    -0.27    0.14
# Exact a, adot, b, bdot, g, gdot:
  1.660159E-05  2.579761E-02  2.104952E-07  2.535585E-04  2.495874E-02  7.207710E-03
# Covariance matrix:
  1.5638E-12  1.2483E-10  5.5851E-15  1.2237E-12  1.1162E-10  3.7118E-10
  1.2483E-10  1.5300E-07 -3.3523E-13  1.5538E-09  2.7047E-08  4.4429E-07
  5.5851E-15 -3.3523E-13  3.6731E-13 -3.0193E-14  4.2004E-13 -9.2740E-13
  1.2237E-12  1.5538E-09 -3.0193E-14  1.5785E-11  2.7105E-10  4.5117E-09
  1.1162E-10  2.7047E-08  4.2004E-13  2.7105E-10  1.2107E-08  7.9245E-08
  3.7118E-10  4.4429E-07 -9.2740E-13  4.5117E-09  7.9245E-08  1.2903E-06
#      lat0       lon0       xBary       yBary       zBary        JD0
   -1.134803  -40.583853    0.282330   -0.019513   -0.978458  2452117.079603
# Heliocentric elements and errors
Epoch:              2452116.5000  =  2001/07/26
Mean Anomaly:           38.37171 +/-     6.886
Argument of Peri:      226.76219 +/-    12.544
Long of Asc Node:       22.65792 +/-     0.042
Inclination:             1.23637 +/-     0.001
Eccentricity:         0.32008542 +/-    0.0373
Semi-Major Axis:     50.83007877 +/-    2.9537
Time of Perihelion: 2438007.7589 +/-    2814.9
Perihelion:          34.56011164 +/-    2.7610
Aphelion:            67.10004591 +/-    4.3352
Period (y)              362.4010 +/-     31.59
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           30.98535026 +/-    0.1642
Ecliptic Y          -26.90541511 +/-    0.1407
Ecliptic Z           -0.79347524 +/-    0.0043
Ecliptic XDOT         0.00243319 +/-    0.0001
Ecliptic YDOT         0.00163617 +/-    0.0001
Ecliptic ZDOT         0.00001236 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.04398163 +/-    0.1546
Geocenter to KBO     40.06597303 +/-    0.2163
# Hcoef:  8.00

The following table shows the complete astrometric record for 01OO108. 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 (01OO108) followed by the observatory code and reference code for the source of the astrometry.

2001 07  26.57886  21 28 49.08   -16 04 30.5         01OO108   568  Cd3420      
2001 07  27.53290  21 28 44.72   -16 04 51.8   24.1R 01OO108   568  Cd3420      
2001 07  27.57814  21 28 44.50   -16 04 52.6   23.4R 01OO108   568  Cd3420      
2001 07  27.61223  21 28 44.33   -16 04 53.4   23.2R 01OO108   568  Cd3420      
2015 05  27.351097 22 41 56.00   -09 11 27.4   24.5r 01OO108   W84  C~1j7Q      
2015 05  27.372572 22 41 56.03   -09 11 27.2   24.5r 01OO108   W84  C~1j7Q      
2015 05  27.394052 22 41 56.07   -09 11 26.9   24.5r 01OO108   W84  C~1j7Q      
2015 05  27.415544 22 41 56.09   -09 11 26.9   24.6r 01OO108   W84  C~1j7Q      
2015 05  28.348963 22 41 57.03   -09 11 22.4   24.9r 01OO108   W84  C~1j7Q      

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    -0.05       0.00    -0.03
  2   0.0026      0.00     0.10       0.00    -0.14
  3   0.0027      0.00    -0.02       0.00     0.06
  4   0.0028      0.00    -0.19       0.00     0.01
  5  13.8337      0.00    -0.27       0.00    -0.13
  6  13.8338      0.00    -0.14       0.00    -0.05
  7  13.8339      0.00     0.14       0.00     0.14
  8  13.8339      0.00     0.12       0.00     0.03
  9  13.8365      0.00    -0.02       0.00    -0.12

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.

01OO108    quality flag:3

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        51.135    51.135    51.135
ecceobj         0.322     0.322     0.322
incobj          1.235     1.235     1.235
qmin           32.099    34.100    31.752
qmax           81.120    69.489    68.864
amean          50.628    49.894    48.581
amin           48.193    48.476    43.833
amax           56.990    52.028    51.702
emean           0.328     0.295     0.299
emin            0.276     0.273     0.258
emax            0.423     0.336     0.343
imean           2.174     4.119     3.798
imin            0.357     1.913     1.791
imax            3.629     5.630     6.405
excite_mean     0.331     0.304     0.307
fracstop        1.000     1.000     1.000
cjmean          3.040     3.056     3.039

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       177.0     181.5     174.1
kozaiamp        180.0     180.0     180.0