22 April 2019
20190421 Week Rotation Today Rotation Week 20190423

NOAA
1 Active Region

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27S29
(375",-399")
E05-W49
(54)
6.7 -0.4 -9.7e20
2 E21N14
(-330",310")
E36-W00
(36)
3.0 -0.3 -2.4e20
3 W25S69
(140",-864")
E47-W59
(106)
1.9 -1.2 -4.2e21
4 W09S12
(141",-126")
E05-W15
(20)
1.5 -0.1 -2.8e19
5 E10N66
(-71",901")
E59-W48
(107)
1.1 0.9 2.8e21
6 E54S67
(-300",-856")
E80-E65
(15)
0.3 -0.7 -6.0e20
7 E20S23
(-306",-293")
E23-E17
(6)
0.1 -1.0 -2.6e19
8 E02N29
(-31",533")
E04-W02
(6)
0.1 -0.8 -2.0e19

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 22-Apr-2019 22:00 UT .