Last update: 2019-02-22 15:58 UTC
Summary
Orbit Properties
Physical Properties
Observations
Ephemerides
Close Approaches
Possible Impacts
 
2011UD21
Orbital Properties
Orbit type Aten
Perihelion (q) 0.949 au
Aphelion (Q) 1.008 au
Eccentricty (e) 0.03 -
Inclination (i) 1.1 deg
Orbit period (P) 353.6 days
Earth MOID 0.00328 au
Next Earth close approach
Date 2041/09/29
Nominal distance (from Earth center) 0.07873 au
11777526 km
Maximum Brightness 22.8 -
Risk
Object is in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H) 28.5 -
Diameter 8* m
Taxonomic type -
Rotation period (T) - h
Orbit Visualization
Discovery Information
Discovery Date 2011-10-18
Observatory Mt. Lemmon Survey
External Links
Proper elements
*Estimated from the absolute magnitude using