Orbit Fit and Astrometric record for 00FB8

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: 00FB8     
# Created Thu Oct 19 01:37:05 2017
# Orbit generated from Bernstein formalism
# Fitting   18 observations of   18
# Arc:  14.99y
# First observation: 2000/03/27
#  Last observation: 2015/03/23
Preliminary a, adot, b, bdot, g, gdot:
   0.000496   0.021346  -0.000033  -0.001709   0.023919   0.000000
# Chi-squared of fit:    28.72 DOF:   30 RMS:  0.22
# Min/Max residuals:    -0.38    0.48
# Exact a, adot, b, bdot, g, gdot:
  1.440012E-05  2.265960E-02  6.660845E-07 -1.812899E-03  2.487759E-02  6.929079E-03
# Covariance matrix:
  1.2473E-13 -3.6381E-14 -1.1063E-15  2.1438E-15  3.4962E-14 -8.8069E-14
 -3.6381E-14  6.8293E-14  2.4243E-15 -5.1587E-15  4.8212E-14  2.1214E-13
 -1.1063E-15  2.4243E-15  1.0747E-13 -9.6231E-15  9.7876E-16  7.9719E-15
  2.1438E-15 -5.1587E-15 -9.6231E-15  4.2743E-15 -3.9880E-15 -1.6986E-14
  3.4962E-14  4.8212E-14  9.7876E-16 -3.9880E-15  5.3570E-13  1.6479E-13
 -8.8069E-14  2.1214E-13  7.9719E-15 -1.6986E-14  1.6479E-13  6.9853E-13
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.259273 -175.162916   -0.039494   -0.004745   -1.004221  2451630.815983
# Heliocentric elements and errors
Epoch:              2451630.5000  =  2000/03/27
Mean Anomaly:           83.04937 +/-     0.028
Argument of Peri:       66.50354 +/-     0.015
Long of Asc Node:        1.73938 +/-     0.000
Inclination:             4.59423 +/-     0.000
Eccentricity:         0.29922428 +/-    0.0000
Semi-Major Axis:     39.17136688 +/-    0.0041
Time of Perihelion: 2430972.6387 +/-       6.3
Perihelion:          27.45034289 +/-    0.0031
Aphelion:            50.89239086 +/-    0.0054
Period (y)              245.1666 +/-      0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -41.04387759 +/-    0.0012
Ecliptic Y           -3.51067996 +/-    0.0001
Ecliptic Z           -0.18186686 +/-    0.0000
Ecliptic XDOT        -0.00055477 +/-    0.0000
Ecliptic YDOT        -0.00254234 +/-    0.0000
Ecliptic ZDOT        -0.00020285 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   41.19414809 +/-    0.0012
Geocenter to KBO     40.19681670 +/-    0.0012
# Hcoef:  8.16

The following table shows the complete astrometric record for 00FB8. 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 (00FB8) followed by the observatory code and reference code for the source of the astrometry.

2000 03  27.31524  12 17 20.81   -02 09 36.6         00FB8     568  Cb2555      
2000 03  27.35824  12 17 20.61   -02 09 35.1         00FB8     568  Cb2555      
2000 03  29.36495  12 17 11.28   -02 08 37.1   23.9R 00FB8     568  Cb2555      
2000 03  29.40952  12 17 11.06   -02 08 35.6   23.7R 00FB8     568  Cb2555      
2000 03  29.45079  12 17 10.87   -02 08 34.2         00FB8     568  Cb2555      
2000 03  30.35311  12 17 06.66   -02 08 07.8   24.2R 00FB8     568  Cb2555      
2000 03  30.37477  12 17 06.57   -02 08 07.1   24.1R 00FB8     568  Cb2555      
2000 03  30.49429  12 17 06.02   -02 08 03.5         00FB8     568  Cb2555      
2000 07  28.97275  12 14 40.49   -01 53 52.0         00FB8     309  Cb7658      
2000 07  28.98433  12 14 40.52   -01 53 52.5   24.0R 00FB8     309  Cb7658      
2000 07  28.99543  12 14 40.57   -01 53 52.6         00FB8     309  Cb7658      
2001 02  23.28811  12 24 15.89   -03 00 22.7   24.3R 00FB8     309  Cc6643      
2001 02  23.37081  12 24 15.56   -03 00 20.9   24.3R 00FB8     309  Cc6643      
2001 02  24.22694  12 24 12.27   -03 00 00.7         00FB8     309  Cc6643      
2006 04  27.10544  12 41 48.28   -05 25 51.8   23.5R 00FB8     807  Cr3551      
2006 04  28.06774  12 41 44.44   -05 25 27.4         00FB8     807  Cr3551      
2015 03  23.34383  13 21 21.35   -10 20 15.7   24.2R 00FB8     695  C~1Q39      
2015 03  23.46993  13 21 20.85   -10 20 13.0         00FB8     695  C~1Q39      

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     0.00       0.00    -0.38
  2   0.0001     -3.35    -0.05       0.19    -0.12
  3   0.0056   -154.73     0.27      -2.04    -0.32
  4   0.0057   -158.35     0.07      -1.97    -0.18
  5   0.0058   -161.52     0.06      -1.82     0.03
  6   0.0083   -229.92    -0.38      -2.62     0.09
  7   0.0084   -231.44    -0.24      -2.51     0.23
  8   0.0087   -240.44    -0.09      -2.47     0.44
  9   0.3386  -2580.94     0.07     -86.68     0.48
 10   0.3386  -2580.33     0.03     -86.96     0.21
 11   0.3386  -2579.60     0.13     -86.75     0.42
 12   0.9116   6920.22     0.16    -333.77    -0.18
 13   0.9119   6914.97     0.11    -334.07    -0.34
 14   0.9142   6861.65    -0.07    -335.00    -0.24
 15   6.0829  24944.88     0.02   -2184.56    -0.32
 16   6.0856  24881.65    -0.10   -2184.43     0.08
 17  14.9871  66305.24    -0.22   -5271.32     0.06
 18  14.9874  66296.57     0.24   -5271.51     0.06

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.

00FB8    quality flag:3

Type:           3:2E      3:2E      3:2E

axisobj        39.150    39.162    39.138
ecceobj         0.299     0.299     0.299
incobj          4.596     4.596     4.596
qmin           27.340    27.385    27.324
qmax           52.234    52.329    52.252
amean          39.455    39.455    39.455
amin           38.978    39.003    38.987
amax           40.054    40.032    40.080
emean           0.291     0.291     0.292
emin            0.277     0.277     0.277
emax            0.307     0.307     0.307
imean           5.520     5.547     5.474
imin            4.945     4.928     4.911
imax            6.009     6.160     5.974
excite_mean     0.307     0.307     0.307
fracstop        1.000     1.000     1.000
cjmean          2.942     2.943     2.942

libcent 0       180.4     180.0     180.2
libamp  0        84.6      79.1      88.7
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       179.3     176.0     184.1
kozaiamp        180.0     179.9     180.0