22 June 2015
⇐20150621 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150623⇒

NOAA
4 Active Regions
12367
12371
12369
12370

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26N45
(-298",650") 		E60-W30
(90) 		4.7 1.8 5.2e33
2 W26S11
(413",-209") 		W20-W32
(12) 		0.6 3.6 6.1e32
3 W34N06
(524",71") 		W30-W38
(8) 		0.5 8.5 1.5e33

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 22-Jun-2015 23:35 UT .