AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998QR21 ∴ Summary
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(52777) 1998QR21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.18381 1.028e-08 au
e 0.122103 3.29e-08
i 5.693 7.169e-06 deg
Ω 328.534 3.836e-05 deg
ω 97.925 4.989e-05 deg
M 4.176 3.286e-05 deg

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Other useful info
Absolute Magnitude (H)    15.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9172 au
Aphelion 2.4505 au
Asc. node-Earth separation 1.17617 au
Desc. node-Earth separation 1.12603 au
Earth MOID 0.93998 au
Orbital period 1178.75 days
Date of orbit computation  Oct 31 05:29
Observational summary
Optical observations (Discarded) 732 (3)
Radar observations (Discarded) 0 (0)
Arc length 7360.58 days
Unobserved 162 days

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Ephemeris at epoch 58565 MJD
Right Ascension 106.88 deg
Declination 24.4734 deg
V Magnitude 19.25 mag
Solar Elongation -103.51 deg
Galactic Latitude 14.22 deg
Rate 0.264 deg/day
Direction 108.945 deg

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