3 March 2012
⇐20120302 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120304⇒

NOAA
4 Active Regions
11423
11427
11428
11429

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E38S34
(-498",-460") 		E57-E06
(51) 		3.3 4.1 6.9e33
2 W15S29
(217",-368") 		W05-W22
(17) 		0.6 -2.1 -3.5e32
3 E04N33
(-50",628") 		E10-W05
(15) 		0.6 1.9 4.7e32
4 W35S24
(516",-294") 		W26-W43
(17) 		0.5 -1.1 -2.1e32
5 E30S60
(-241",-778") 		E43-E10
(33) 		0.5 0.3 1.4e32

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 3-Mar-2012 22:00 UT .