NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2009HB21 ∴ Orbital info ∴ Epoch 54942 MJD
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2009HB21  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2009HB21.eq0)
Keplerian elements
(Epoch 54942.4 MJD)
Value 1-σ variation Units
a 1.7371 0.01708 au
e 0.421596 0.0053
i 39.661 0.1885 deg
Ω 206.879 0.00988 deg
ω 317.253 0.2544 deg
M 17.815 0.379 deg
Other useful info
Absolute Magnitude (H)    22.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.0047 au
Aphelion distance 2.4695 au
Asc. node-Earth separation 0.0869 au
Desc. node-Earth separation 1.07187 au
Earth MOID 0.08254 au
Orbital period 836.247 days
Date of orbit computation   feb 26 10:36

Covariance matrix
2.91672610E-049.05191285E-053.21980513E-03-1.68721138E-044.34374264E-03-6.47303576E-03
9.05191285E-052.80922755E-059.99256808E-04-5.23606978E-051.34801527E-03-2.00886116E-03
3.21980513E-039.99256808E-043.55443254E-02-1.86247415E-034.79485942E-02-7.14557931E-02
-1.68721138E-04-5.23606978E-05-1.86247415E-039.76091665E-05-2.51306520E-033.74450921E-03
4.34374264E-031.34801527E-034.79485942E-02-2.51306520E-036.47052343E-02-9.64046321E-02
-6.47303576E-03-2.00886116E-03-7.14557931E-023.74450921E-03-9.64046321E-021.43656300E-01

Correlation matrix
1.000000000.999997880.99999223-0.999945590.99987695-0.99999504
0.999997881.000000000.99999659-0.999923240.99984262-0.99998647
0.999992230.999996591.00000000-0.999907470.99981819-0.99997690
-0.99994559-0.99992324-0.999907471.00000000-0.999974090.99997067
0.999876950.999842620.99981819-0.999974091.00000000-0.99992138
-0.99999504-0.99998647-0.999976900.99997067-0.999921381.00000000