99942 Apophis help
Last update: 2024-04-12 18:05 UTC
Orbital Properties
Epoch
60400.0
MJD
Orbit type
Aten
-
Perihelion (q)
0.746
au
Aphelion (Q)
1.099
au
Eccentricity (e)
0.191
-
Inclination (i)
3.3
deg
Orbit period (P)
323.7
d
Earth MOID
0.00012
au
U parameter
0.0
-
A2
-28.9
10-15au/days2
Next Earth close approach
Date
2029-04-13
Nominal distance (from Earth center)
0.00025
au
38015
km
Maximum Brightness
3.1
mag
Risk
Object is not in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H)
18.9
mag
Diameter
375
m
Taxonomic type
Scomp
Rotation period (T)
30.56
h
Discovery Information
Discovery Date
2004-06-19
Observatory
Kitt Peak
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