17 May 2018
20180516 Week Rotation Today Rotation Week 20180518

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N46
(-175",704")
E28-W61
(89)
6.7 0.7 3.2e21
2 E00S70
(-1",-880")
E64-W47
(111)
1.8 -1.2 -4.8e21
3 W44S28
(579",-426")
W34-W50
(16)
0.3 -0.6 -9.7e19
4 W02N28
(29",483")
E01-W04
(5)
0.0 -0.9 -1.1e19
5 W40S21
(572",-319")
W39-W41
(2)
0.0 -0.8 -1.4e19

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/solarmonitor/solarmonitoridl/idl. An extensive copy of coronal hole properties are available at: solarmonitor.org/data. The latest positions of the coronal holes are given in heliocentric co-ordinates. The region positions are valid on 17-May-2018 23:30 UT .