AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999SH21 ∴ Summary
Contact »
(312984) 1999SH21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.33076 2.636e-08 au
e 0.238774 7.11e-08
i 5.466 1.205e-05 deg
Ω 6.097 7.041e-05 deg
ω 264.363 7.556e-05 deg
M 207.444 2.834e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.2 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7742 au
Aphelion 2.8873 au
Asc. node-Earth separation 1.24885 au
Desc. node-Earth separation 1.14803 au
Earth MOID 0.76746 au
Orbital period 1299.7 days
Date of orbit computation  Dec 20 14:48
Observational summary
Optical observations (Discarded) 170 (2)
Radar observations (Discarded) 0 (0)
Arc length 6632.84 days
Unobserved 511 days

More info »
Ephemeris at epoch 58580 MJD
Right Ascension 124.696 deg
Declination 24.2125 deg
V Magnitude 21.9 mag
Solar Elongation -104.7 deg
Galactic Latitude 29.27 deg
Rate 0.11 deg/day
Direction 127.513 deg

More info »





This Web Site has been visited 1089751 times since

and this Page has been visited 33 times since 2012/02/13