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AstDyS ∴ Objects ∴ 1999JR54 ∴ Summary
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(17977) 1999JR54  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.66279 1.149e-08 au
e 0.244097 4.188e-08
i 12.945 4.42e-06 deg
Ω 34.023 1.749e-05 deg
ω 308.433 1.861e-05 deg
M 183.662 8.368e-06 deg

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Other useful info
Absolute Magnitude (H)    14.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0128 au
Aphelion 3.3128 au
Asc. node-Earth separation 1.18116 au
Desc. node-Earth separation 1.94635 au
Earth MOID 1.03444 au
Orbital period 1587.09 days
Date of orbit computation  apr 23 19:49
Observational summary
Optical observations (Discarded) 2120 (77)
Radar observations (Discarded) 0 (0)
Arc length 11877 days
Unobserved 36 days

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Ephemeris at epoch 60426 MJD
Right Ascension 159.523 deg
Declination 20.6827 deg
V Magnitude 19.73 mag
Solar Elongation -116.82 deg
Galactic Latitude 58.95 deg
Rate 0.08 deg/day
Direction -153.201 deg

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