AstDyS-2
Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998BL18 ∴ Orbital info ∴ Epoch epochXXX
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(257531) 1998BL18  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 257531.eq1)
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.7404 2.412e-08 au
e 0.042809 6.665e-08
i 3.17 6.944e-06 deg
Ω 86.145 0.0001359 deg
ω 0.214 0.0001708 deg
M 311.53 0.0001044 deg
Other useful info
Absolute Magnitude (H)    17.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6231 au
Aphelion 2.8577 au
Asc. node-Earth separation 1.63982 au
Desc. node-Earth separation 1.84171 au
Earth MOID 1.63973 au
Orbital period 1656.99 days
Date of orbit computation  apr 23 20:44
Correlation matrix
1.000000000.15106115-0.003318810.010338110.16859053-0.36708839
0.151061151.000000000.00325039-0.01203336-0.070629300.09960663
-0.003318810.003250391.00000000-0.068559520.049589880.00877607
0.01033811-0.01203336-0.068559521.00000000-0.79018080-0.00781179
0.16859053-0.070629300.04958988-0.790180801.00000000-0.60367466
-0.367088390.099606630.00877607-0.00781179-0.603674661.00000000
Covariance matrix
5.81590433E-162.42790270E-16-5.55808632E-163.38886192E-146.94238539E-13-9.23847880E-13
2.42790270E-164.44160289E-151.50431889E-15-1.09008592E-13-8.03751284E-136.92754387E-13
-5.55808632E-161.50431889E-154.82247257E-11-6.47152705E-115.88023751E-116.35998419E-12
3.38886192E-14-1.09008592E-13-6.47152705E-111.84760121E-08-1.83399230E-08-1.10809245E-10
6.94238539E-13-8.03751284E-135.88023751E-11-1.83399230E-082.91563954E-08-1.07569971E-08
-9.23847880E-136.92754387E-136.35998419E-12-1.10809245E-10-1.07569971E-081.08903635E-08