4 May 2014
⇐20140503 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140505⇒

NOAA
6 Active Regions
12047
12049
12050
12051
12052
12053

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E53S53
(-454",-738") 		E72-E25
(47) 		2.5 -0.7 -3.1e33
2 E31N42
(-362",676") 		E51-E08
(43) 		2.2 -0.2 -3.2e32
3 E09S13
(-152",-147") 		E13-E06
(7) 		0.2 -7.1 -3.4e32
4 E40N09
(-602",202") 		E41-E39
(2) 		0.0 -24.3 -3.9e32

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 4-May-2014 23:35 UT .