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AstDyS ∴ Objects ∴ Yonematsu ∴ Summary
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(11987) Yonematsu  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.69892 1.693e-08 au
e 0.091516 5.413e-08
i 13.754 6.486e-06 deg
Ω 70.835 2.428e-05 deg
ω 90.848 4.556e-05 deg
M 330.462 4.003e-05 deg

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Other useful info
Absolute Magnitude (H)    13.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4519 au
Aphelion 2.9459 au
Asc. node-Earth separation 1.6938 au
Desc. node-Earth separation 1.65713 au
Earth MOID 1.50502 au
Orbital period 1619.51 days
Date of orbit computation  Oct 31 05:03
Observational summary
Optical observations (Discarded) 1313 (9)
Radar observations (Discarded) 0 (0)
Arc length 19692.7 days
Unobserved 102 days

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Ephemeris at epoch 58504 MJD
Right Ascension 181.438 deg
Declination 20.4949 deg
V Magnitude 17.09 mag
Solar Elongation 125.11 deg
Galactic Latitude 77.63 deg
Rate 0.121 deg/day
Direction 29.88 deg

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