AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2009SR21 ∴ Summary
Contact »
(665588) 2009SR21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.1299 4.563e-08 au
e 0.096068 1.125e-07
i 9.368 6.054e-06 deg
Ω 284.08 6.983e-05 deg
ω 55.17 8.028e-05 deg
M 256.808 4.101e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.8292 au
Aphelion 3.4306 au
Asc. node-Earth separation 1.92296 au
Desc. node-Earth separation 2.29849 au
Earth MOID 1.83211 au
Orbital period 2022.52 days
Date of orbit computation  apr 23 22:08
Observational summary
Optical observations (Discarded) 206 (0)
Radar observations (Discarded) 0 (0)
Arc length 4965.19 days
Unobserved 366 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 231.987 deg
Declination -29.9846 deg
V Magnitude 20.93 mag
Solar Elongation 155.47 deg
Galactic Latitude 21.72 deg
Rate 0.159 deg/day
Direction -77.241 deg

More info »