2 August 2015
⇐20150801 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150803⇒

NOAA
6 Active Regions
12390
12391
12392
12393
12394
12389

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14S63
(106",-879") 		E44-W33
(77) 		1.4 -1.3 -4.2e33
2 W44S29
(574",-515") 		W34-W60
(26) 		0.9 -3.1 -2.4e33
3 E19N04
(-312",-16") 		E24-E14
(10) 		0.4 6.3 6.1e32
4 E22S24
(-325",-471") 		E25-E18
(7) 		0.2 5.2 4.1e32

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 2-Aug-2015 23:35 UT .