30 May 2014
⇐20140529 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140531⇒

NOAA
4 Active Regions
12071
12073
12075
12076

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24S61
(185",-823") 		E12-W44
(56) 		1.2 -0.4 -7.3e32
2 E55S47
(-532",-683") 		E81-E36
(45) 		1.0 -0.6 -1.0e33
3 E19N48
(-201",718") 		E30-E07
(23) 		0.7 -0.6 -2.9e32
4 E03N41
(-36",634") 		E06-W01
(7) 		0.1 -3.9 -1.5e32

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 30-May-2014 23:35 UT .