2011UD21 help
Last update: 2025-06-12 08:28 UTC
Orbital Properties
Epoch
60800.0
MJD
Orbit type
Aten
-
Perihelion (q)
0.949
au
Aphelion (Q)
1.008
au
Eccentricity (e)
0.030
-
Inclination (i)
1.1
deg
Orbit period (P)
353.6
d
Earth MOID
0.00352
au
U parameter
4.3
-
Next Earth close approach
Date
2041-09-29
Nominal distance (from Earth center)
0.07873
au
11777605
km
Maximum Brightness
26.2
mag
Risk
Object is in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H)
28.5
mag
Diameter
5 - 12*
m
Taxonomic type
-
Rotation period (T)
-
h
Discovery Information
Discovery Date
2011-10-18
Observatory
Mt. Lemmon Survey
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