AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998SM104 ∴ Summary
Contact »
(257555) 1998SM104  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.40868 1.419e-08 au
e 0.186654 7.659e-08
i 3.522 6.442e-06 deg
Ω 103.201 9.85e-05 deg
ω 274.876 0.0001006 deg
M 287.415 2.108e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9591 au
Aphelion 2.8583 au
Asc. node-Earth separation 1.30532 au
Desc. node-Earth separation 1.34608 au
Earth MOID 0.96485 au
Orbital period 1365.42 days
Date of orbit computation  apr 23 20:44
Observational summary
Optical observations (Discarded) 262 (1)
Radar observations (Discarded) 0 (0)
Arc length 8977.17 days
Unobserved 366 days

More info »
Ephemeris at epoch 60427 MJD
Right Ascension 319.69 deg
Declination -16.2166 deg
V Magnitude 22.13 mag
Solar Elongation 79.82 deg
Galactic Latitude -39.76 deg
Rate 0.369 deg/day
Direction 75.512 deg

More info »