11885 Summanus help
Last update: 2025-07-29 02:36 UTC
Orbital Properties
Epoch
60800.0
MJD
Orbit type
Apollo
-
Perihelion (q)
0.895
au
Aphelion (Q)
2.512
au
Eccentricity (e)
0.474
-
Inclination (i)
19.4
deg
Orbit period (P)
812.0
d
Earth MOID
0.06712
au
U parameter
0.0
-
Next Earth close approach
Date
2031-03-20
Nominal distance (from Earth center)
0.14759
au
22078577
km
Maximum Brightness
16.9
mag
Risk
Object is not in risk list
Physical Properties
Absolute Magnitude (H)
18.5
mag
Diameter
1230
m
Taxonomic type
-
Rotation period (T)
7.368
h
Discovery Information
Discovery Date
1990-09-25
Observatory
Steward Observatory, Kitt Peak-Spacewatch
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