8 October 2012
⇐20121007 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121009⇒

NOAA
3 Active Regions
11582
11585
11586

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E39S10
(-592",-250") 		E54-E10
(44) 		2.6 0.6 7.3e32
2 W37S14
(561",-309") 		W26-W47
(21) 		1.6 -2.3 -1.7e33
3 W23N29
(324",382") 		W19-W26
(7) 		0.2 -3.3 -1.8e32

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-Oct-2012 21:00 UT .