1 June 2015
⇐20150531 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150602⇒

NOAA
4 Active Regions
12355
12356
12357
12358

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W39N59
(312",814") 		E08-W54
(62) 		2.1 0.5 1.9e33
2 W29S71
(146",-894") 		E47-W52
(99) 		0.7 -0.9 -2.4e33
3 E16N28
(-224",454") 		E22-E05
(17) 		0.5 -0.9 -1.5e32
4 E61S24
(-755",-379") 		E63-E59
(4) 		0.0 -3.4 -1.8e32

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-Jun-2015 23:35 UT .