18 April 2019
20190417 Week Rotation Today Rotation Week 20190419

NOAA
2 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S26
(-312",-336")
E35-E02
(33)
5.9 -0.5 -7.7e20
2 E43S29
(-576",-399")
E62-E33
(29)
1.8 -0.6 -5.9e20
3 E33S69
(-181",-865")
E67-W43
(110)
1.8 -0.9 -3.5e21
4 W39N63
(273",879")
E18-W44
(62)
1.2 0.7 3.3e21
5 W51S75
(189",-907")
W28-W63
(35)
0.1 -0.9 -4.0e20
6 W12S52
(127",-696")
W07-W16
(9)
0.1 -0.8 -3.3e19

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 18-Apr-2019 22:00 UT .