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AstDyS ∴ Objects ∴ Irma ∴ Summary
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(177) Irma  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.77105 5.634e-09 au
e 0.234267 2.8e-08
i 1.381 3.198e-06 deg
Ω 346.935 0.000126 deg
ω 39.624 0.0001261 deg
M 279.086 6.444e-06 deg

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Other useful info
Absolute Magnitude (H)    9.7 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1219 au
Aphelion 3.4202 au
Asc. node-Earth separation 1.21192 au
Desc. node-Earth separation 2.20361 au
Earth MOID 1.1266 au
Orbital period 1684.87 days
Date of orbit computation  apr 23 19:45
Observational summary
Optical observations (Discarded) 4630 (54)
Radar observations (Discarded) 0 (0)
Arc length 53459.4 days
Unobserved 35 days

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Ephemeris at epoch 60427 MJD
Right Ascension 308.565 deg
Declination -20.0963 deg
V Magnitude 14.95 mag
Solar Elongation 91.05 deg
Galactic Latitude -31.28 deg
Rate 0.231 deg/day
Direction 76.752 deg

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