AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Johnwarren ∴ Summary
Contact »
(21481) Johnwarren  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.363 6.938e-09 au
e 0.061255 2.471e-08
i 6.282 3.161e-06 deg
Ω 159.228 2.652e-05 deg
ω 304.533 3.905e-05 deg
M 165.293 2.814e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2183 au
Aphelion 2.5077 au
Asc. node-Earth separation 1.28482 au
Desc. node-Earth separation 1.43021 au
Earth MOID 1.24222 au
Orbital period 1326.77 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 2714 (299)
Radar observations (Discarded) 0 (0)
Arc length 11222.8 days
Unobserved 304 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 301.394 deg
Declination -13.8816 deg
V Magnitude 20 mag
Solar Elongation 94.34 deg
Galactic Latitude -22.58 deg
Rate 0.221 deg/day
Direction 72.153 deg

More info »