4 August 2015
⇐20150803 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150805⇒

NOAA
7 Active Regions
12391
12393
12394
12395
12396
12389
12392

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35N50
(-351",673") 		E61-E30
(31) 		1.3 0.4 4.2e32
2 W09N04
(151",-34") 		W02-W14
(12) 		0.6 6.2 7.1e32
3 W24S67
(150",-903") 		E25-W49
(74) 		0.6 -0.9 -2.5e33
4 W07S24
(111",-472") 		W02-W12
(10) 		0.4 3.4 3.9e32

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 4-Aug-2015 20:30 UT .