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AstDyS ∴ Objects ∴ 1998SP18 ∴ Summary
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(275539) 1998SP18  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.31099 1.006e-08 au
e 0.080849 4.298e-08
i 7.112 8.141e-06 deg
Ω 171.968 3.686e-05 deg
ω 266.991 6.779e-05 deg
M 32.394 5.561e-05 deg

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Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1241 au
Aphelion 2.4978 au
Asc. node-Earth separation 1.31204 au
Desc. node-Earth separation 1.281 au
Earth MOID 1.15388 au
Orbital period 1283.2 days
Date of orbit computation  apr 23 20:47
Observational summary
Optical observations (Discarded) 310 (2)
Radar observations (Discarded) 0 (0)
Arc length 11265.1 days
Unobserved 108 days

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Ephemeris at epoch 60444 MJD
Right Ascension 109.512 deg
Declination 18.2507 deg
V Magnitude 22.22 mag
Solar Elongation -55.27 deg
Galactic Latitude 13.93 deg
Rate 0.461 deg/day
Direction 92.831 deg

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