1 August 2015
⇐20150731 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150802⇒

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 W28S30
(388",-547") 		W13-W41
(28) 		1.5 -3.3 -2.6e33
2 W02S63
(18",-879") 		E53-W50
(103) 		1.5 -1.3 -4.3e33
3 W38N06
(577",18") 		13
(1.2e04) 		-2.9 5.6 6.7e32

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 1-Aug-2015 23:35 UT .