Orbit Fit and Astrometric record for 95FB21

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: 95FB21    
# Created Fri Mar 29 01:09:38 2024
# Orbit generated from Bernstein formalism
# Fitting     12 observations of     12
# Arc:   8.65d
# First observation: 1995/03/29
#  Last observation: 1995/04/07
Preliminary a, adot, b, bdot, g, gdot:
  -0.000000   0.012678   0.000003  -0.000331   0.021547   0.000000
# WARNING MRQMIN stopped after  13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit:    63.76 DOF:     19 RMS:  0.41
# Min/Max residuals:    -1.08    0.89
# Exact a, adot, b, bdot, g, gdot:
  8.479589E-06  1.171312E-02  3.241185E-06 -3.362253E-04  2.127864E-02 -1.890009E-05
# Covariance matrix:
  3.6705E-12  5.6074E-09  4.0551E-14  3.5927E-11  1.3129E-09 -1.2930E-09
  5.6074E-09  9.5089E-06  6.8561E-11  6.0727E-08  2.2194E-06 -1.7757E-06
  4.0551E-14  6.8561E-11  3.4426E-13 -1.6734E-11  1.6003E-11 -1.5546E-11
  3.5927E-11  6.0727E-08 -1.6734E-11  1.7181E-09  1.4176E-08 -1.0886E-08
  1.3129E-09  2.2194E-06  1.6003E-11  1.4176E-08  5.1808E-07 -4.4599E-07
 -1.2930E-09 -1.7757E-06 -1.5546E-11 -1.0886E-08 -4.4599E-07 -7.4379E-05
#      lat0       lon0       xBary       yBary       zBary        JD0
   -0.339420 -120.959745    0.774577   -0.003746   -0.630865  2449806.241878
# Heliocentric elements and errors
Epoch:              2449800.5000  =  1995/03/24
Mean Anomaly:          182.21514 +/-    78.001
Argument of Peri:       10.80950 +/-    10.810
Long of Asc Node:       46.65415 +/-     3.775
Inclination:             1.68381 +/-     0.543
Eccentricity:         0.63099807 +/-    0.1548
Semi-Major Axis:     29.21127280 +/-    1.8243
Time of Perihelion: 2478278.9549 +/- 1973156.3
Perihelion:          10.77901611 +/-    4.5726
Aphelion:            47.64352949 +/-    5.4138
Period (y)              157.8825 +/-     14.79
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X          -25.16258248 +/-    0.8178
Ecliptic Y          -40.44951663 +/-    1.3631
Ecliptic Z           -0.27825974 +/-    0.0094
Ecliptic XDOT         0.00130088 +/-    0.0013
Ecliptic YDOT        -0.00077401 +/-   -0.0008
Ecliptic ZDOT        -0.00004343 +/-   -0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   47.63818197 +/-    1.2354
Geocenter to KBO     46.99547654 +/-    1.5897
# Hcoef:  6.81

The following table shows the complete astrometric record for 95FB21. 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 (95FB21) followed by the observatory code and reference code for the source of the astrometry.

1995 03  29.74117  15 46 58.12   -20 16 31.8         95FB21    413  C25370      
1995 03  29.78142  15 46 58.00   -20 16 31.1         95FB21    413  C25370      
1995 03  30.74909  15 46 55.27   -20 16 22.4   23.1R 95FB21    413  C25370      
1995 03  30.78978  15 46 55.16   -20 16 22.0         95FB21    413  C25370      
1995 04  01.2326   15 46 50.81   -20 16 08.7         95FB21    950  C25512      
1995 04  06.25791  15 46 34.99   -20 15 22.3   23.5R 95FB21    809  C25403      
1995 04  06.32027  15 46 34.77   -20 15 21.7         95FB21    809  C25403      
1995 04  06.34608  15 46 34.69   -20 15 21.4         95FB21    809  C25403      
1995 04  06.36009  15 46 34.63   -20 15 21.3         95FB21    809  C25403      
1995 04  06.37307  15 46 34.59   -20 15 21.1         95FB21    809  C25403      
1995 04  07.30278  15 46 31.43   -20 15 11.5         95FB21    809  C25403      
1995 04  07.39345  15 46 31.10   -20 15 10.6         95FB21    809  C25403      

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    -0.72
     2   0.0001     -1.80    -0.08       0.31    -0.38
     3   0.0028    -41.19     0.30       0.42     0.25
     4   0.0029    -42.78     0.44       0.48     0.33
     5   0.0068   -105.42    -1.08       0.10     0.89
     6   0.0206   -332.79     0.33      -3.27    -0.07
     7   0.0208   -335.95     0.23      -3.36    -0.11
     8   0.0208   -337.11     0.33      -3.32    -0.05
     9   0.0209   -337.96     0.17      -3.40    -0.12
    10   0.0209   -338.55     0.21      -3.33    -0.04
    11   0.0234   -384.04    -0.34      -3.69     0.05
    12   0.0237   -388.77    -0.55      -3.83    -0.03

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.

95FB21    quality flag:0

Type:      ERR2LARGE ERR2LARGE ERR2LARGE

axisobj         0.000     0.000     0.000
ecceobj        -1.000    -1.000    -1.000
incobj         -1.000    -1.000    -1.000
qmin            0.000     0.000     0.000
qmax            0.000     0.000     0.000
amean           0.000     0.000     0.000
amin            0.000     0.000     0.000
amax            0.000     0.000     0.000
emean           0.000     0.000     0.000
emin            0.000     0.000     0.000
emax            0.000     0.000     0.000
imean           0.000     0.000     0.000
imin            0.000     0.000     0.000
imax            0.000     0.000     0.000
excite_mean     0.000     0.000     0.000
fracstop        0.000     0.000     0.000
cjmean          0.000     0.000     0.000

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         0.0       0.0       0.0
kozaiamp          0.0       0.0       0.0