8 February 2012
⇐20120207 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120209⇒

NOAA
3 Active Regions
11410
11413
11415

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W14S31
(204",-401") 		W03-W24
(21) 		1.3 6.8 2.5e33
2 E11N14
(-188",331") 		E15-E06
(9) 		0.9 -12.2 -2.7e33
3 E08S77
(-30",-916") 		E73-W60
(133) 		0.7 1.7 3.2e33
4 E28S26
(-409",-339") 		E39-E19
(20) 		0.6 -2.9 -5.7e32
5 W25S25
(377",-313") 		W24-W27
(3) 		0.0 8.2 9.3e31

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-Feb-2012 22:00 UT .