26 February 2012
⇐20120225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120227⇒

NOAA
5 Active Regions
11422
11423
11424
11425
11426

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09S60
(75",-771") 		E25-W46
(71) 		6.5 0.8 4.1e33
2 E23N13
(-362",330") 		E29-E16
(13) 		0.9 -10.1 -2.8e33
3 W33N45
(373",756") 		W25-W42
(17) 		0.5 1.1 6.9e32
4 E51S24
(-685",-328") 		E56-E46
(10) 		0.2 -1.8 -2.6e32
5 W65S12
(862",-147") 		W61-W70
(9) 		0.1 2.3 2.6e32

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 26-Feb-2012 22:00 UT .