1 May 2014
⇐20140430 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140502⇒

NOAA
5 Active Regions
12045
12047
12048
12049
12050

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W23S62
(175",-813") 		E04-W46
(50) 		0.7 -0.6 -5.3e32
2 E22N08
(-352",192") 		E24-E20
(4) 		0.2 20.6 9.9e32

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 1-May-2014 23:35 UT .