18 June 2015
⇐20150617 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150619⇒

NOAA
6 Active Regions
12365
12367
12369
12370
12371
12366

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E43S15
(-627",-258") 		E57-E30
(27) 		0.8 4.8 2.0e33
2 E30N10
(-460",144") 		E33-E24
(9) 		0.6 7.8 1.6e33
3 E47S69
(-244",-888") 		E62-E19
(43) 		0.2 -0.4 -5.8e32

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 18-Jun-2015 23:35 UT .