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 Nov 1 01:07:48 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: 8.479588E-06 1.171312E-02 3.241185E-06 -3.362253E-04 2.127864E-02 -1.890009E-05 # Covariance matrix: 3.6704E-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