1 May 2012
⇐20120430 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120502⇒

NOAA
7 Active Regions
11466
11467
11469
11470
11471
11472
11473

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S69
(-168",-863") 		E34-W10
(44) 		0.9 0.5 8.4e32
2 E20S41
(-243",-571") 		E26-E13
(13) 		0.4 1.3 2.5e32

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-May-2012 23:00 UT .