AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2007ER171 ∴ Summary
Contact »
(199874) 2007ER171  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.21226 1.043e-08 au
e 0.087764 3.871e-08
i 7.779 7.087e-06 deg
Ω 19.968 3.121e-05 deg
ω 241.21 5.209e-05 deg
M 13.519 4.348e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.7 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0181 au
Aphelion 2.4064 au
Asc. node-Earth separation 1.29507 au
Desc. node-Earth separation 1.10445 au
Earth MOID 1.01663 au
Orbital period 1201.85 days
Date of orbit computation  apr 23 20:31
Observational summary
Optical observations (Discarded) 278 (2)
Radar observations (Discarded) 0 (0)
Arc length 9472.06 days
Unobserved 375 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 320.606 deg
Declination -23.8539 deg
V Magnitude 21.99 mag
Solar Elongation 79.51 deg
Galactic Latitude -43.05 deg
Rate 0.416 deg/day
Direction 78.394 deg

More info »