NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2004ER21 ∴ Summary
Contact »
2004ER21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 0.899626 5.572e-05 au
e 0.171953 0.0004236
i 7.97 0.02392 deg
Ω 357.329 0.003952 deg
ω 343.382 0.01813 deg
M 223.41 1.166 deg

More info »
Other useful info
Absolute Magnitude (H)    24.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7449 au
Aphelion 1.0543 au
Asc. node-Earth separation -0.25479 au
Desc. node-Earth separation 0.04826 au
Earth MOID 0.04007 au
Orbital period 311.667 days
Date of orbit computation   Oct 1 17:07
Observational summary
Optical observations (Discarded) 71 (3)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 5507 days

More info »
Ephemeris at epoch 58597 MJD
Right Ascension 57.5572 deg
Declination 24.5536 deg
V Magnitude 26.57 mag
Solar Elongation -27.74 deg
Galactic Latitude -22.7 deg
Rate 1.067 deg/day
Direction 77.442 deg

More info »





This Web Site has been visited 2040102 times since

and this Page has been visited 2883 times since 2011/06/25