AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1997AN21 ∴ Summary
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(11642) 1997AN21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.56936 1.496e-08 au
e 0.131666 6.821e-08
i 13.176 5.825e-06 deg
Ω 311.489 3.508e-05 deg
ω 118.367 4.593e-05 deg
M 142.84 2.785e-05 deg

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Other useful info
Absolute Magnitude (H)    13.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2311 au
Aphelion 2.9077 au
Asc. node-Earth separation 1.67811 au
Desc. node-Earth separation 1.38965 au
Earth MOID 1.27792 au
Orbital period 1504.3 days
Date of orbit computation  Oct 31 05:03
Observational summary
Optical observations (Discarded) 896 (5)
Radar observations (Discarded) 0 (0)
Arc length 9241.58 days
Unobserved 289 days

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Ephemeris at epoch 58565 MJD
Right Ascension 273.338 deg
Declination -35.4389 deg
V Magnitude 19.36 mag
Solar Elongation 89.05 deg
Galactic Latitude -8.31 deg
Rate 0.197 deg/day
Direction 99.744 deg

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