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(20975) 1981ER4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.94202 1.274e-08 au
e 0.119006 2.998e-08
i 10.058 3.75e-06 deg
Ω 211.433 1.936e-05 deg
ω 244.119 2.663e-05 deg
M 255.475 1.748e-05 deg

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Other useful info
Absolute Magnitude (H)    13.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.5919 au
Aphelion 3.2921 au
Asc. node-Earth separation 2.05424 au
Desc. node-Earth separation 1.76336 au
Earth MOID 1.62772 au
Orbital period 1843.17 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 2350 (6)
Radar observations (Discarded) 0 (0)
Arc length 19115.9 days
Unobserved 195 days

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Ephemeris at epoch 60397 MJD
Right Ascension 344.13 deg
Declination 0.00178 deg
V Magnitude 19.71 mag
Solar Elongation 22.91 deg
Galactic Latitude -51.3 deg
Rate 0.37 deg/day
Direction 68.453 deg

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