28 May 2014
⇐20140527 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140529⇒

NOAA
6 Active Regions
12069
12071
12072
12073
12074
12075

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05S61
(-40",-817") 		E32-W37
(69) 		1.8 -0.2 -4.1e32
2 E19N05
(-300",105") 		E22-E14
(8) 		0.2 6.6 3.4e32

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 28-May-2014 23:35 UT .