1 March 2012
⇐20120229 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120302⇒

NOAA
3 Active Regions
11423
11426
11427

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W07S24
(104",-279") 		E04-W13
(17) 		1.0 -1.5 -3.2e32
2 W54S65
(328",-844") 		W79-W62
(-17) 		0.9 0.8 1.7e33
3 E53S25
(-706",-333") 		E74-E37
(37) 		0.6 4.3 2.1e33

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-Mar-2012 22:00 UT .