6 May 2019
⇐20190505 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190507⇒

NOAA
1 Active Region
12740

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25S04
(396",-19") 		E03-W47
(50) 		5.3 -0.1 -1.9e20
2 W03S60
(24",-794") 		E52-W63
(115) 		4.8 -0.8 -3.6e21
3 W38N69
(208",904") 		W21-W62
(41) 		0.2 1.0 1.2e21
4 E25S29
(-357",-418") 		E29-E22
(7) 		0.0 -0.6 -9.7e18

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

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, and the region positions are valid on 6-May-2019 22:00 UT .