16 May 2018
20180515 Week Rotation Today Rotation Week 20180517

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12S27
(-181",-396")
E23-W05
(28)
3.0 -0.2 -1.3e32
2 E36N30
(-490",503")
E47-E25
(22)
2.0 0.8 9.4e32
3 E18S70
(-103",-877")
E76-W57
(133)
1.8 -1.4 -5.8e33
4 E28N52
(-277",771")
E38-W02
(40)
1.8 0.4 7.8e32
5 W39S13
(578",-186")
W30-W47
(17)
1.5 -0.4 -2.6e32
6 W30N68
(173",894")
E01-W60
(61)
0.6 1.1 2.9e33
7 W08N21
(119",378")
W02-W12
(10)
0.4 -1.0 -1.0e32
8 E23S42
(-274",-606")
E27-E18
(9)
0.1 -1.1 -5.3e31
9 E34S19
(-501",-276")
E36-E31
(5)
0.0 -0.8 -1.5e31

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 16-May-2018 15:30 UT .