22 November 2012
⇐20121121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121123⇒

NOAA
5 Active Regions
11613
11616
11618
11619
11620

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20N46
(-228",679") 		E54-W13
(67) 		3.5 1.0 1.9e33
2 W18S35
(252",-580") 		E02-W33
(35) 		1.1 -8.7 -4.0e33
3 W24N56
(219",789") 		W13-W36
(23) 		0.5 1.1 5.1e32
4 E40N41
(-472",615") 		E42-E35
(7) 		0.1 -1.0 -1.0e32
5 W10N44
(123",648") 		W07-W12
(5) 		0.1 -0.5 -2.6e31

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 22-Nov-2012 22:00 UT .