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 Tue Dec 19 02:37:08 2017
# Orbit generated from Bernstein formalism
# Fitting    9 observations of    9
# Arc:  13.84y
# First observation: 2001/07/26
#  Last observation: 2015/05/28
Preliminary a, adot, b, bdot, g, gdot:
  -0.000027   0.023925  -0.000000   0.000234   0.022397   0.000000
# WARNING MRQMIN stopped after  15 iterations -- oscilliatory solution
# Chi-squared of fit:   596.74 DOF:   12 RMS:  1.44
# Min/Max residuals:    -2.11    5.21
# Exact a, adot, b, bdot, g, gdot:
 -8.596115E-06  2.374959E-02  3.645173E-08  2.333073E-04  2.255311E-02  4.935862E-04
# 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:              2452110.5000  =  2001/07/20
Mean Anomaly:            1.78953 +/-     6.886
Argument of Peri:      293.40437 +/-    12.544
Long of Asc Node:       22.40030 +/-     0.042
Inclination:             1.24240 +/-     0.001
Eccentricity:         0.26995400 +/-    0.0373
Semi-Major Axis:     62.05387441 +/-    2.9537
Time of Perihelion: 2451222.9609 +/-    3414.8
Perihelion:          45.30218278 +/-    3.1623
Aphelion:            78.80556604 +/-    4.4070
Period (y)              488.8342 +/-     34.90
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.22968322 +/-    0.1642
Ecliptic Y          -29.68593685 +/-    0.1407
Ecliptic Z           -0.87812080 +/-    0.0043
Ecliptic XDOT         0.00191298 +/-    0.0001
Ecliptic YDOT         0.00215188 +/-    0.0001
Ecliptic ZDOT         0.00002734 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   45.31773556 +/-    0.1546
Geocenter to KBO     44.33978839 +/-    0.2163
# Hcoef:  7.78

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     5.21       0.00     0.03
  2   0.0026    -66.35    -1.33      -0.47    -0.16
  3   0.0027    -69.61    -1.70      -0.23     0.07
  4   0.0028    -72.19    -2.11      -0.22     0.07
  5  13.8337  71437.10    -0.11     732.01    -0.01
  6  13.8338  71437.65     0.04     732.03     0.03
  7  13.8339  71438.39     0.39     732.08     0.10
  8  13.8339  71438.69     0.30     731.96     0.00
  9  13.8365  71455.03    -0.86     730.77    -0.13

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:1

Type:       SCATNEAR  SCATNEAR  SCATNEAR

axisobj        62.534    75.808    55.915
ecceobj         0.276     0.424     0.212
incobj          1.241     1.239     1.242
qmin           44.602    42.803    43.426
qmax           80.843   110.370    68.761
amean          62.282    75.546    55.755
amin           61.605    74.530    55.196
amax           63.108    76.975    56.386
emean           0.271     0.422     0.208
emin            0.261     0.411     0.197
emax            0.281     0.434     0.219
imean           1.857     1.877     1.836
imin            1.763     1.731     1.679
imax            1.971     2.012     1.963
excite_mean     0.273     0.423     0.210
fracstop        1.000     1.000     1.000
cjmean          3.250     3.269     3.200

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       180.9     196.0     187.0
kozaiamp        180.0     180.0     179.9