21 April 2019
20190420 Week Rotation Today Rotation Week 20190422

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14S28
(198",-372")
E22-W42
(64)
9.4 -0.5 -1.2e21
2 W03S70
(15",-867")
E72-W80
(152)
2.4 -1.2 -4.9e21
3 E15N61
(-120",871")
E51-W38
(89)
1.6 1.0 3.1e21
4 E19S30
(-276",-409")
E24-E15
(9)
0.2 -1.2 -8.7e19
5 W26N24
(389",459")
W24-W29
(5)
0.1 -0.8 -4.5e19
6 W31S09
(489",-81")
W29-W34
(5)
0.1 1.2 2.7e19
7 W33S21
(490",-267")
W30-W36
(6)
0.1 -1.3 -2.4e19
8 W22N13
(345",289")
W19-W25
(6)
0.1 -0.7 -1.0e19
9 W27S14
(421",-157")
W25-W29
(4)
0.0 -0.9 -1.3e19
10 W48S58
(378",-772")
W47-W49
(2)
0.0 -1.7 -9.6e19

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 21-Apr-2019 22:00 UT .