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AstDyS ∴ Objects ∴ 1991RR17 ∴ Summary
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(21079) 1991RR17  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.76211 9.708e-09 au
e 0.157728 3.068e-08
i 9.337 3.26e-06 deg
Ω 7.989 1.715e-05 deg
ω 325.384 2.009e-05 deg
M 48.852 1.178e-05 deg

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Other useful info
Absolute Magnitude (H)    13.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3264 au
Aphelion 3.1978 au
Asc. node-Earth separation 1.3834 au
Desc. node-Earth separation 2.09696 au
Earth MOID 1.32388 au
Orbital period 1676.71 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 3579 (143)
Radar observations (Discarded) 0 (0)
Arc length 11831.9 days
Unobserved 81 days

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Ephemeris at epoch 60425 MJD
Right Ascension 37.4079 deg
Declination 18.8988 deg
V Magnitude 18.64 mag
Solar Elongation -7.32 deg
Galactic Latitude -38.19 deg
Rate 0.451 deg/day
Direction 68.702 deg

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