17 April 2018
20180416 Week Rotation Today Rotation Week 20180418

NOAA
2 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21S24
(317",-311")
E18-W42
(60)
12.6 -0.5 -1.9e33
2 E31S67
(-190",-850")
E61-W81
(142)
2.8 -0.9 -4.4e33
3 E27N07
(-436",204")
E30-E23
(7)
0.3 -0.7 -6.0e31
4 E30S27
(-420",-366")
E34-E25
(9)
0.1 -1.9 -8.3e31
5 W45S24
(625",-327")
W41-W49
(8)
0.1 -0.9 -6.2e31
6 E19N02
(-310",117")
E21-E17
(4)
0.1 -1.1 -1.3e31

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-Apr-2018 23:30 UT .