27 May 2015
⇐20150526 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150528⇒

NOAA
6 Active Regions
12349
12353
12354
12355
12351
12352

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W02N46
(28",703") 		E65-W37
(102) 		7.2 2.6 1.1e34
2 E11S70
(-64",-883") 		E41-W73
(114) 		1.5 -0.8 -2.9e33
3 W33S12
(505",-181") 		W23-W39
(16) 		0.6 8.6 1.9e33
4 W20S22
(308",-334") 		W14-W28
(14) 		0.3 19.9 1.9e33
5 W08S23
(129",-354") 		W04-W12
(8) 		0.1 8.6 2.7e32
6 W01S15
(18",-220") 		E02-W03
(5) 		0.1 -8.3 -1.1e32

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 27-May-2015 23:35 UT .