8 May 2012
⇐20120507 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120509⇒

NOAA
5 Active Regions
11470
11471
11474
11476
11477

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20N13
(322",267") 		E11-W38
(49) 		8.7 -3.6 -8.5e33
2 W05S40
(61",-568") 		E06-W12
(18) 		0.3 -1.5 -1.9e32
3 E30S25
(-430",-362") 		E31-E28
(3) 		0.1 -6.3 -1.3e32
4 E24S45
(-281",-630") 		E28-E22
(6) 		0.0 -2.3 -5.1e31

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 8-May-2012 23:00 UT .