22 June 2012
⇐20120621 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120623⇒

NOAA
2 Active Regions
11504
11511

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N47
(-423",670") 		55
(2.3e05) 		1.1 8.2 1.9e34
2 E17S22
(-257",-378") 		E22-E12
(10) 		0.3 3.6 3.2e32
3 W05S19
(78",-344") 		W00-W09
(9) 		0.2 12.5 5.2e32

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-Jun-2012 07:00 UT .