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AstDyS ∴ Objects ∴ 1997EM ∴ Summary
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(21344) 1997EM  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.73128 1.097e-08 au
e 0.146206 3.022e-08
i 3.746 3.774e-06 deg
Ω 70.769 6.386e-05 deg
ω 198.349 6.599e-05 deg
M 271.768 1.677e-05 deg

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Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.332 au
Aphelion 3.1306 au
Asc. node-Earth separation 2.11838 au
Desc. node-Earth separation 1.33313 au
Earth MOID 1.31609 au
Orbital period 1648.72 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 1900 (10)
Radar observations (Discarded) 0 (0)
Arc length 12120.8 days
Unobserved 66 days

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Ephemeris at epoch 60398 MJD
Right Ascension 155.347 deg
Declination 16.0629 deg
V Magnitude 18.96 mag
Solar Elongation -142.52 deg
Galactic Latitude 53.57 deg
Rate 0.132 deg/day
Direction -78.48 deg

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