12 May 2018
⇐20180511 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180513⇒

NOAA
2 Active Regions
12709
12708

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S22
(-337",-318") 		E42-E01
(41) 		5.3 -0.4 -6.3e32
2 W19S13
(303",-177") 		W01-W29
(28) 		2.0 -0.2 -7.9e31
3 E05N68
(-34",896") 		E37-W41
(78) 		0.7 1.0 1.9e33

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 12-May-2018 15:30 UT .