9 April 2012
⇐20120408 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120410⇒

NOAA
2 Active Regions
11450
11452

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E08S14
(-130",-128") 		E24-W22
(46) 		8.2 -3.0 -4.6e33
2 E10N48
(-114",772") 		E23-W04
(27) 		1.3 -1.0 -1.0e33

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 9-Apr-2012 23:00 UT .